From 52f5664a87474894e7da44f3b778dbe4e4c740b7 Mon Sep 17 00:00:00 2001 From: Ariel Nahum Date: Thu, 3 Sep 2015 19:49:55 +0300 Subject: libiscsi: Fix iscsi_check_transport_timeouts possible infinite loop Connection last_ping is not being updated when iscsi_send_nopout fails. Not updating the last_ping will cause firing a timer to a past time (last_ping + ping_tmo < current_time) which triggers an infinite loop of iscsi_check_transport_timeouts() and hogs the cpu. Fix this issue by checking the return value of iscsi_send_nopout. If it fails set the next_timeout to one second later. Signed-off-by: Ariel Nahum Signed-off-by: Sagi Grimberg Reviewed-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/libiscsi.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 33c74d3436c9..6bffd91b973a 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -976,13 +976,13 @@ static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr) wake_up(&conn->ehwait); } -static void iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr) +static int iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr) { struct iscsi_nopout hdr; struct iscsi_task *task; if (!rhdr && conn->ping_task) - return; + return -EINVAL; memset(&hdr, 0, sizeof(struct iscsi_nopout)); hdr.opcode = ISCSI_OP_NOOP_OUT | ISCSI_OP_IMMEDIATE; @@ -996,13 +996,16 @@ static void iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr) hdr.ttt = RESERVED_ITT; task = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)&hdr, NULL, 0); - if (!task) + if (!task) { iscsi_conn_printk(KERN_ERR, conn, "Could not send nopout\n"); - else if (!rhdr) { + return -EIO; + } else if (!rhdr) { /* only track our nops */ conn->ping_task = task; conn->last_ping = jiffies; } + + return 0; } static int iscsi_nop_out_rsp(struct iscsi_task *task, @@ -2092,8 +2095,10 @@ static void iscsi_check_transport_timeouts(unsigned long data) if (time_before_eq(last_recv + recv_timeout, jiffies)) { /* send a ping to try to provoke some traffic */ ISCSI_DBG_CONN(conn, "Sending nopout as ping\n"); - iscsi_send_nopout(conn, NULL); - next_timeout = conn->last_ping + (conn->ping_timeout * HZ); + if (iscsi_send_nopout(conn, NULL)) + next_timeout = jiffies + (1 * HZ); + else + next_timeout = conn->last_ping + (conn->ping_timeout * HZ); } else next_timeout = last_recv + recv_timeout; -- cgit 1.4.1 From b763ec17ac762470eec5be8ebcc43e4f8b2c2b82 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 19 Sep 2015 07:00:18 -0700 Subject: regmap: debugfs: Ensure we don't underflow when printing access masks If a read is attempted which is smaller than the line length then we may underflow the subtraction we're doing with the unsigned size_t type so move some of the calculation to be additions on the right hand side instead in order to avoid this. Reported-by: Rasmus Villemoes Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/base/regmap/regmap-debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index f42f2bac6466..1f327898e53d 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -432,7 +432,7 @@ static ssize_t regmap_access_read_file(struct file *file, /* If we're in the region the user is trying to read */ if (p >= *ppos) { /* ...but not beyond it */ - if (buf_pos >= count - 1 - tot_len) + if (buf_pos + tot_len + 1 >= count) break; /* Format the register */ -- cgit 1.4.1 From 176fc2d5770a0990eebff903ba680d2edd32e718 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 19 Sep 2015 07:12:34 -0700 Subject: regmap: debugfs: Don't bother actually printing when calculating max length The in kernel snprintf() will conveniently return the actual length of the printed string even if not given an output beffer at all so just do that rather than relying on the user to pass in a suitable buffer, ensuring that we don't need to worry if the buffer was truncated due to the size of the buffer passed in. Reported-by: Rasmus Villemoes Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/base/regmap/regmap-debugfs.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index 1f327898e53d..4c55cfbad19e 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -32,8 +32,7 @@ static DEFINE_MUTEX(regmap_debugfs_early_lock); /* Calculate the length of a fixed format */ static size_t regmap_calc_reg_len(int max_val, char *buf, size_t buf_size) { - snprintf(buf, buf_size, "%x", max_val); - return strlen(buf); + return snprintf(NULL, 0, "%x", max_val); } static ssize_t regmap_name_read_file(struct file *file, -- cgit 1.4.1 From 03a0e8a7c5ea29b5c4e72dfd64900b47a8fb6f2d Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Mon, 14 Sep 2015 10:41:03 +0200 Subject: mtd: nand: sunxi: fix OOB handling in ->write_xxx() functions The USER_DATA register cannot be accessed using byte accessors on A13 SoCs, thus triggering a bug when using memcpy_toio on this register. Declare an helper macros to convert an OOB buffer into a suitable USER_DATA value and vice-versa. This patch also fixes an error in the oob_required logic (some OOB data are not written even if the user required it) by removing the oob_required condition, which is perfectly valid since the core already fill ->oob_poi with FFs when oob_required is false. Signed-off-by: Boris Brezillon Cc: # 3.19+ Fixes: 1fef62c1423b ("mtd: nand: add sunxi NAND flash controller support") Signed-off-by: Brian Norris --- drivers/mtd/nand/sunxi_nand.c | 26 +++++++++----------------- 1 file changed, 9 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c index f97a58d6aae1..279cafd9d7f7 100644 --- a/drivers/mtd/nand/sunxi_nand.c +++ b/drivers/mtd/nand/sunxi_nand.c @@ -147,6 +147,10 @@ #define NFC_ECC_MODE GENMASK(15, 12) #define NFC_RANDOM_SEED GENMASK(30, 16) +/* NFC_USER_DATA helper macros */ +#define NFC_BUF_TO_USER_DATA(buf) ((buf)[0] | ((buf)[1] << 8) | \ + ((buf)[2] << 16) | ((buf)[3] << 24)) + #define NFC_DEFAULT_TIMEOUT_MS 1000 #define NFC_SRAM_SIZE 1024 @@ -646,15 +650,9 @@ static int sunxi_nfc_hw_ecc_write_page(struct mtd_info *mtd, offset = layout->eccpos[i * ecc->bytes] - 4 + mtd->writesize; /* Fill OOB data in */ - if (oob_required) { - tmp = 0xffffffff; - memcpy_toio(nfc->regs + NFC_REG_USER_DATA_BASE, &tmp, - 4); - } else { - memcpy_toio(nfc->regs + NFC_REG_USER_DATA_BASE, - chip->oob_poi + offset - mtd->writesize, - 4); - } + writel(NFC_BUF_TO_USER_DATA(chip->oob_poi + + layout->oobfree[i].offset), + nfc->regs + NFC_REG_USER_DATA_BASE); chip->cmdfunc(mtd, NAND_CMD_RNDIN, offset, -1); @@ -784,14 +782,8 @@ static int sunxi_nfc_hw_syndrome_ecc_write_page(struct mtd_info *mtd, offset += ecc->size; /* Fill OOB data in */ - if (oob_required) { - tmp = 0xffffffff; - memcpy_toio(nfc->regs + NFC_REG_USER_DATA_BASE, &tmp, - 4); - } else { - memcpy_toio(nfc->regs + NFC_REG_USER_DATA_BASE, oob, - 4); - } + writel(NFC_BUF_TO_USER_DATA(oob), + nfc->regs + NFC_REG_USER_DATA_BASE); tmp = NFC_DATA_TRANS | NFC_DATA_SWAP_METHOD | NFC_ACCESS_DIR | (1 << 30); -- cgit 1.4.1 From 8e375ccda31ccc73b087134e263c48d2114534f4 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Sun, 13 Sep 2015 18:14:43 +0200 Subject: mtd: nand: sunxi: fix sunxi_nand_chips_cleanup() The sunxi_nand_chips_cleanup() function is missing a call to list_del() which generates a double free error. Reported-by: Priit Laes Signed-off-by: Boris Brezillon Cc: # 3.19+ Fixes: 1fef62c1423b ("mtd: nand: add sunxi NAND flash controller support") Tested-by: Priit Laes Signed-off-by: Brian Norris --- drivers/mtd/nand/sunxi_nand.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c index 279cafd9d7f7..e7d333c162be 100644 --- a/drivers/mtd/nand/sunxi_nand.c +++ b/drivers/mtd/nand/sunxi_nand.c @@ -1381,6 +1381,7 @@ static void sunxi_nand_chips_cleanup(struct sunxi_nfc *nfc) node); nand_release(&chip->mtd); sunxi_nand_ecc_cleanup(&chip->nand.ecc); + list_del(&chip->node); } } -- cgit 1.4.1 From ffcb6d1686ceb4a6b50776fb2597ab0e4dd79040 Mon Sep 17 00:00:00 2001 From: Robin Murphy Date: Thu, 17 Sep 2015 17:42:16 +0100 Subject: iommu/io-pgtable-arm: Don't use dma_to_phys() In checking whether DMA addresses differ from physical addresses, using dma_to_phys() is actually the wrong thing to do, since it may hide any DMA offset, which is precisely one of the things we are checking for. Simply casting between the two address types, whilst ugly, is in fact the appropriate course of action. Further care (and ugliness) is also necessary in the comparison to avoid truncation if phys_addr_t and dma_addr_t differ in size. We can also reject any device with a fixed DMA offset up-front at page table creation, leaving the allocation-time check for the more subtle cases like bounce buffering due to an incorrect DMA mask. Furthermore, we can then fix the hackish KConfig dependency so that architectures without a dma_to_phys() implementation may still COMPILE_TEST (or even use!) the code. The true dependency is on the DMA API, so use the appropriate symbol for that. Signed-off-by: Robin Murphy [will: folded in selftest fix from Yong Wu] Signed-off-by: Will Deacon --- drivers/iommu/Kconfig | 3 +-- drivers/iommu/io-pgtable-arm.c | 24 +++++++++++++----------- 2 files changed, 14 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 4664c2a96c67..3dc1bcb0d01d 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -23,8 +23,7 @@ config IOMMU_IO_PGTABLE config IOMMU_IO_PGTABLE_LPAE bool "ARMv7/v8 Long Descriptor Format" select IOMMU_IO_PGTABLE - # SWIOTLB guarantees a dma_to_phys() implementation - depends on ARM || ARM64 || (COMPILE_TEST && SWIOTLB) + depends on HAS_DMA && (ARM || ARM64 || COMPILE_TEST) help Enable support for the ARM long descriptor pagetable format. This allocator supports 4K/2M/1G, 16K/32M and 64K/512M page diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c index 73c07482f487..7df97777662d 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -202,9 +202,9 @@ typedef u64 arm_lpae_iopte; static bool selftest_running = false; -static dma_addr_t __arm_lpae_dma_addr(struct device *dev, void *pages) +static dma_addr_t __arm_lpae_dma_addr(void *pages) { - return phys_to_dma(dev, virt_to_phys(pages)); + return (dma_addr_t)virt_to_phys(pages); } static void *__arm_lpae_alloc_pages(size_t size, gfp_t gfp, @@ -223,10 +223,10 @@ static void *__arm_lpae_alloc_pages(size_t size, gfp_t gfp, goto out_free; /* * We depend on the IOMMU being able to work with any physical - * address directly, so if the DMA layer suggests it can't by - * giving us back some translation, that bodes very badly... + * address directly, so if the DMA layer suggests otherwise by + * translating or truncating them, that bodes very badly... */ - if (dma != __arm_lpae_dma_addr(dev, pages)) + if (dma != virt_to_phys(pages)) goto out_unmap; } @@ -243,10 +243,8 @@ out_free: static void __arm_lpae_free_pages(void *pages, size_t size, struct io_pgtable_cfg *cfg) { - struct device *dev = cfg->iommu_dev; - if (!selftest_running) - dma_unmap_single(dev, __arm_lpae_dma_addr(dev, pages), + dma_unmap_single(cfg->iommu_dev, __arm_lpae_dma_addr(pages), size, DMA_TO_DEVICE); free_pages_exact(pages, size); } @@ -254,12 +252,11 @@ static void __arm_lpae_free_pages(void *pages, size_t size, static void __arm_lpae_set_pte(arm_lpae_iopte *ptep, arm_lpae_iopte pte, struct io_pgtable_cfg *cfg) { - struct device *dev = cfg->iommu_dev; - *ptep = pte; if (!selftest_running) - dma_sync_single_for_device(dev, __arm_lpae_dma_addr(dev, ptep), + dma_sync_single_for_device(cfg->iommu_dev, + __arm_lpae_dma_addr(ptep), sizeof(pte), DMA_TO_DEVICE); } @@ -629,6 +626,11 @@ arm_lpae_alloc_pgtable(struct io_pgtable_cfg *cfg) if (cfg->oas > ARM_LPAE_MAX_ADDR_BITS) return NULL; + if (!selftest_running && cfg->iommu_dev->dma_pfn_offset) { + dev_err(cfg->iommu_dev, "Cannot accommodate DMA offset for IOMMU page tables\n"); + return NULL; + } + data = kmalloc(sizeof(*data), GFP_KERNEL); if (!data) return NULL; -- cgit 1.4.1 From f0c453dbcce7767cd868deb809ba68083c93954e Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 20 Aug 2015 12:12:32 +0100 Subject: iommu/arm-smmu: Ensure IAS is set correctly for AArch32-capable SMMUs AArch32-capable SMMU implementations have a minimum IAS of 40 bits, so ensure that is reflected in the stage-2 page table configuration. Signed-off-by: Will Deacon --- drivers/iommu/arm-smmu-v3.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index dafaf59dc3b8..a24f359fa0d0 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -56,6 +56,7 @@ #define IDR0_TTF_SHIFT 2 #define IDR0_TTF_MASK 0x3 #define IDR0_TTF_AARCH64 (2 << IDR0_TTF_SHIFT) +#define IDR0_TTF_AARCH32_64 (3 << IDR0_TTF_SHIFT) #define IDR0_S1P (1 << 1) #define IDR0_S2P (1 << 0) @@ -2460,7 +2461,13 @@ static int arm_smmu_device_probe(struct arm_smmu_device *smmu) } /* We only support the AArch64 table format at present */ - if ((reg & IDR0_TTF_MASK << IDR0_TTF_SHIFT) < IDR0_TTF_AARCH64) { + switch (reg & IDR0_TTF_MASK << IDR0_TTF_SHIFT) { + case IDR0_TTF_AARCH32_64: + smmu->ias = 40; + /* Fallthrough */ + case IDR0_TTF_AARCH64: + break; + default: dev_err(smmu->dev, "AArch64 table format not supported!\n"); return -ENXIO; } @@ -2541,8 +2548,7 @@ static int arm_smmu_device_probe(struct arm_smmu_device *smmu) dev_warn(smmu->dev, "failed to set DMA mask for table walker\n"); - if (!smmu->ias) - smmu->ias = smmu->oas; + smmu->ias = max(smmu->ias, smmu->oas); dev_info(smmu->dev, "ias %lu-bit, oas %lu-bit (features 0x%08x)\n", smmu->ias, smmu->oas, smmu->features); -- cgit 1.4.1 From 1c27df1c0a82b938d8073a60243ff62eff8056b5 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 18 Sep 2015 16:12:56 +0100 Subject: iommu/arm-smmu: Use correct address mask for CMD_TLBI_S2_IPA Stage-2 TLBI by IPA takes a 48-bit address field, as opposed to the 64-bit field used by the VA-based invalidation commands. This patch re-jigs the SMMUv3 command construction code so that the address field is correctly masked. Signed-off-by: Will Deacon --- drivers/iommu/arm-smmu-v3.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index a24f359fa0d0..286e890e7d64 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -343,7 +343,8 @@ #define CMDQ_TLBI_0_VMID_SHIFT 32 #define CMDQ_TLBI_0_ASID_SHIFT 48 #define CMDQ_TLBI_1_LEAF (1UL << 0) -#define CMDQ_TLBI_1_ADDR_MASK ~0xfffUL +#define CMDQ_TLBI_1_VA_MASK ~0xfffUL +#define CMDQ_TLBI_1_IPA_MASK 0xfffffffff000UL #define CMDQ_PRI_0_SSID_SHIFT 12 #define CMDQ_PRI_0_SSID_MASK 0xfffffUL @@ -771,11 +772,13 @@ static int arm_smmu_cmdq_build_cmd(u64 *cmd, struct arm_smmu_cmdq_ent *ent) break; case CMDQ_OP_TLBI_NH_VA: cmd[0] |= (u64)ent->tlbi.asid << CMDQ_TLBI_0_ASID_SHIFT; - /* Fallthrough */ + cmd[1] |= ent->tlbi.leaf ? CMDQ_TLBI_1_LEAF : 0; + cmd[1] |= ent->tlbi.addr & CMDQ_TLBI_1_VA_MASK; + break; case CMDQ_OP_TLBI_S2_IPA: cmd[0] |= (u64)ent->tlbi.vmid << CMDQ_TLBI_0_VMID_SHIFT; cmd[1] |= ent->tlbi.leaf ? CMDQ_TLBI_1_LEAF : 0; - cmd[1] |= ent->tlbi.addr & CMDQ_TLBI_1_ADDR_MASK; + cmd[1] |= ent->tlbi.addr & CMDQ_TLBI_1_IPA_MASK; break; case CMDQ_OP_TLBI_NH_ASID: cmd[0] |= (u64)ent->tlbi.asid << CMDQ_TLBI_0_ASID_SHIFT; -- cgit 1.4.1 From 9e294bf88a583825a413df408b9fe9e658fb93ac Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 28 Aug 2015 13:49:35 +0200 Subject: clk: samsung: fix cpu clock's flags checking CLK_CPU_HAS_DIV1 and CLK_CPU_NEEDS_DEBUG_ALT_DIV masks were incorrectly used as a bit numbers. Fix it. Tested on Exynos4210 based Origen board and on Exynos5250 based Arndale board. Cc: Tomasz Figa Cc: Michael Turquette Cc: Thomas Abraham Fixes: ddeac8d96 ("clk: samsung: add infrastructure to register cpu clocks") Reported-by: Dan Carpenter Reviewed-by: Krzysztof Kozlowski Reviewed-by: Javier Martinez Canillas Acked-by: Sylwester Nawrocki Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Stephen Boyd --- drivers/clk/samsung/clk-cpu.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/clk/samsung/clk-cpu.c b/drivers/clk/samsung/clk-cpu.c index 7c1e1f58e2da..2fe37f708dc7 100644 --- a/drivers/clk/samsung/clk-cpu.c +++ b/drivers/clk/samsung/clk-cpu.c @@ -164,7 +164,7 @@ static int exynos_cpuclk_pre_rate_change(struct clk_notifier_data *ndata, * the values for DIV_COPY and DIV_HPM dividers need not be set. */ div0 = cfg_data->div0; - if (test_bit(CLK_CPU_HAS_DIV1, &cpuclk->flags)) { + if (cpuclk->flags & CLK_CPU_HAS_DIV1) { div1 = cfg_data->div1; if (readl(base + E4210_SRC_CPU) & E4210_MUX_HPM_MASK) div1 = readl(base + E4210_DIV_CPU1) & @@ -185,7 +185,7 @@ static int exynos_cpuclk_pre_rate_change(struct clk_notifier_data *ndata, alt_div = DIV_ROUND_UP(alt_prate, tmp_rate) - 1; WARN_ON(alt_div >= MAX_DIV); - if (test_bit(CLK_CPU_NEEDS_DEBUG_ALT_DIV, &cpuclk->flags)) { + if (cpuclk->flags & CLK_CPU_NEEDS_DEBUG_ALT_DIV) { /* * In Exynos4210, ATB clock parent is also mout_core. So * ATB clock also needs to be mantained at safe speed. @@ -206,7 +206,7 @@ static int exynos_cpuclk_pre_rate_change(struct clk_notifier_data *ndata, writel(div0, base + E4210_DIV_CPU0); wait_until_divider_stable(base + E4210_DIV_STAT_CPU0, DIV_MASK_ALL); - if (test_bit(CLK_CPU_HAS_DIV1, &cpuclk->flags)) { + if (cpuclk->flags & CLK_CPU_HAS_DIV1) { writel(div1, base + E4210_DIV_CPU1); wait_until_divider_stable(base + E4210_DIV_STAT_CPU1, DIV_MASK_ALL); @@ -225,7 +225,7 @@ static int exynos_cpuclk_post_rate_change(struct clk_notifier_data *ndata, unsigned long mux_reg; /* find out the divider values to use for clock data */ - if (test_bit(CLK_CPU_NEEDS_DEBUG_ALT_DIV, &cpuclk->flags)) { + if (cpuclk->flags & CLK_CPU_NEEDS_DEBUG_ALT_DIV) { while ((cfg_data->prate * 1000) != ndata->new_rate) { if (cfg_data->prate == 0) return -EINVAL; @@ -240,7 +240,7 @@ static int exynos_cpuclk_post_rate_change(struct clk_notifier_data *ndata, writel(mux_reg & ~(1 << 16), base + E4210_SRC_CPU); wait_until_mux_stable(base + E4210_STAT_CPU, 16, 1); - if (test_bit(CLK_CPU_NEEDS_DEBUG_ALT_DIV, &cpuclk->flags)) { + if (cpuclk->flags & CLK_CPU_NEEDS_DEBUG_ALT_DIV) { div |= (cfg_data->div0 & E4210_DIV0_ATB_MASK); div_mask |= E4210_DIV0_ATB_MASK; } -- cgit 1.4.1 From e03dc19ba9c7ebc48cedc9cb797fa42dff302565 Mon Sep 17 00:00:00 2001 From: Jason Jin Date: Fri, 14 Aug 2015 13:54:09 +0800 Subject: video: fbdev: fsl: Fix the sleep function for FSL DIU module For deep sleep, the diu module will power off, when wake up from the deep sleep, the registers need to be reinitialized. Signed-off-by: Jason Jin Signed-off-by: Wang Dongsheng Acked-by: Timur Tabi Signed-off-by: Tomi Valkeinen --- drivers/video/fbdev/fsl-diu-fb.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/video/fbdev/fsl-diu-fb.c b/drivers/video/fbdev/fsl-diu-fb.c index 7fa2e6f9e322..b335c1ae8625 100644 --- a/drivers/video/fbdev/fsl-diu-fb.c +++ b/drivers/video/fbdev/fsl-diu-fb.c @@ -1628,9 +1628,16 @@ static int fsl_diu_suspend(struct platform_device *ofdev, pm_message_t state) static int fsl_diu_resume(struct platform_device *ofdev) { struct fsl_diu_data *data; + unsigned int i; data = dev_get_drvdata(&ofdev->dev); - enable_lcdc(data->fsl_diu_info); + + fsl_diu_enable_interrupts(data); + update_lcdc(data->fsl_diu_info); + for (i = 0; i < NUM_AOIS; i++) { + if (data->mfb[i].count) + fsl_diu_enable_panel(&data->fsl_diu_info[i]); + } return 0; } -- cgit 1.4.1 From 8e9191ac7b29a250b2baab7069ea9cc614c5133c Mon Sep 17 00:00:00 2001 From: Luis de Bethencourt Date: Fri, 18 Sep 2015 20:46:09 +0200 Subject: video: fbdev: mb862xx: Fix module autoload for OF platform driver This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt Signed-off-by: Tomi Valkeinen --- drivers/video/fbdev/mb862xx/mb862xxfbdrv.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c b/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c index 9b8bebdf8f86..f9ec5c0484fa 100644 --- a/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c +++ b/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c @@ -831,6 +831,7 @@ static struct of_device_id of_platform_mb862xx_tbl[] = { { .compatible = "fujitsu,coral", }, { /* end */ } }; +MODULE_DEVICE_TABLE(of, of_platform_mb862xx_tbl); static struct platform_driver of_platform_mb862xxfb_driver = { .driver = { -- cgit 1.4.1 From 7f2ea957c1152a7b57c22af2ae603bf66965c06e Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Mon, 24 Aug 2015 21:37:25 +0200 Subject: tridentfb: fix hang on Blade3D with CONFIG_CC_OPTIMIZE_FOR_SIZE When the kernel is compiled with -Os (CONFIG_CC_OPTIMIZE_FOR_SIZE), tridentfb hangs the machine upon load with Blade3D cards unless acceleration is disabled. This is caused by memcpy() which copies data byte-by-byte (rep movsb) when compiled with -Os. The card does not like that - it requires 32-bit access. Use iowrite_32() instead. Signed-off-by: Ondrej Zary Acked-by: Krzysztof Helt Signed-off-by: Tomi Valkeinen --- drivers/video/fbdev/tridentfb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/video/fbdev/tridentfb.c b/drivers/video/fbdev/tridentfb.c index 7ed9a227f5ea..742971304717 100644 --- a/drivers/video/fbdev/tridentfb.c +++ b/drivers/video/fbdev/tridentfb.c @@ -226,7 +226,7 @@ static void blade_image_blit(struct tridentfb_par *par, const char *data, writemmr(par, DST1, point(x, y)); writemmr(par, DST2, point(x + w - 1, y + h - 1)); - memcpy(par->io_virt + 0x10000, data, 4 * size); + iowrite32_rep(par->io_virt + 0x10000, data, size); } static void blade_copy_rect(struct tridentfb_par *par, -- cgit 1.4.1 From 23aa4db78aa7da994ae12d85acf7413ba2517946 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Mon, 24 Aug 2015 21:37:26 +0200 Subject: tridentfb: Fix set_lwidth on TGUI9440 and CYBER9320 According to X.Org driver, chips older than TGUI9660 have only 1 width bit in AddColReg. Touching the 2nd one causes I2C/DDC to fail on TGUI9440. Set only 1 bit of width in AddColReg on TGUI9440 and CYBER9320. Signed-off-by: Ondrej Zary Signed-off-by: Tomi Valkeinen --- drivers/video/fbdev/tridentfb.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/video/fbdev/tridentfb.c b/drivers/video/fbdev/tridentfb.c index 742971304717..01b43e9ce941 100644 --- a/drivers/video/fbdev/tridentfb.c +++ b/drivers/video/fbdev/tridentfb.c @@ -673,8 +673,14 @@ static int get_nativex(struct tridentfb_par *par) static inline void set_lwidth(struct tridentfb_par *par, int width) { write3X4(par, VGA_CRTC_OFFSET, width & 0xFF); - write3X4(par, AddColReg, - (read3X4(par, AddColReg) & 0xCF) | ((width & 0x300) >> 4)); + /* chips older than TGUI9660 have only 1 width bit in AddColReg */ + /* touching the other one breaks I2C/DDC */ + if (par->chip_id == TGUI9440 || par->chip_id == CYBER9320) + write3X4(par, AddColReg, + (read3X4(par, AddColReg) & 0xEF) | ((width & 0x100) >> 4)); + else + write3X4(par, AddColReg, + (read3X4(par, AddColReg) & 0xCF) | ((width & 0x300) >> 4)); } /* For resolutions smaller than FP resolution stretch */ -- cgit 1.4.1 From ad38cc5f6d4f2c74ed69e2c017691e428549b2bd Mon Sep 17 00:00:00 2001 From: Vladimir Zapolskiy Date: Tue, 15 Sep 2015 16:12:33 +0300 Subject: fbdev: omap2: connector-dvi: use of_get_i2c_adapter_by_node interface This change is needed to properly lock I2C bus driver, which serves DDC. Prior to this change i2c_put_adapter() is misused, which may lead to an overflow over zero of I2C bus driver user counter. Signed-off-by: Vladimir Zapolskiy Signed-off-by: Tomi Valkeinen --- drivers/video/fbdev/omap2/displays-new/connector-dvi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/video/fbdev/omap2/displays-new/connector-dvi.c b/drivers/video/fbdev/omap2/displays-new/connector-dvi.c index a8ce920fa797..d811e6dcaef7 100644 --- a/drivers/video/fbdev/omap2/displays-new/connector-dvi.c +++ b/drivers/video/fbdev/omap2/displays-new/connector-dvi.c @@ -294,7 +294,7 @@ static int dvic_probe_of(struct platform_device *pdev) adapter_node = of_parse_phandle(node, "ddc-i2c-bus", 0); if (adapter_node) { - adapter = of_find_i2c_adapter_by_node(adapter_node); + adapter = of_get_i2c_adapter_by_node(adapter_node); if (adapter == NULL) { dev_err(&pdev->dev, "failed to parse ddc-i2c-bus\n"); omap_dss_put_device(ddata->in); -- cgit 1.4.1 From 4bdb4629867babb7a3d93548aa69a4ef07fc36c0 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Wed, 16 Sep 2015 11:12:34 +0200 Subject: OMAPDSS: panel-sony-acx565akm: Export OF module alias information Drivers needs to export the OF id table and this be built into the module or udev won't have the necessary information to autoload the driver module when the device is registered via OF. Signed-off-by: Javier Martinez Canillas Signed-off-by: Tomi Valkeinen --- drivers/video/fbdev/omap2/displays-new/panel-sony-acx565akm.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/video/fbdev/omap2/displays-new/panel-sony-acx565akm.c b/drivers/video/fbdev/omap2/displays-new/panel-sony-acx565akm.c index 90cbc4c3406c..c581231c74a5 100644 --- a/drivers/video/fbdev/omap2/displays-new/panel-sony-acx565akm.c +++ b/drivers/video/fbdev/omap2/displays-new/panel-sony-acx565akm.c @@ -898,6 +898,7 @@ static const struct of_device_id acx565akm_of_match[] = { { .compatible = "omapdss,sony,acx565akm", }, {}, }; +MODULE_DEVICE_TABLE(of, acx565akm_of_match); static struct spi_driver acx565akm_driver = { .driver = { -- cgit 1.4.1 From 65d49b3d7068525117f8e1458f0496732d02fe15 Mon Sep 17 00:00:00 2001 From: Yaniv Gardi Date: Wed, 2 Sep 2015 11:32:17 +0300 Subject: phy: qcom-ufs: fix build error when the component is built as a module Export the following functions in order to avoid build errors when the component PHY_QCOM_UFS is compiled as a module: ERROR: "ufs_qcom_phy_disable_ref_clk" [drivers/scsi/ufs/ufs-qcom.ko] undefined! ERROR: "ufs_qcom_phy_enable_ref_clk" [drivers/scsi/ufs/ufs-qcom.ko] undefined! ERROR: "ufs_qcom_phy_is_pcs_ready" [drivers/scsi/ufs/ufs-qcom.ko] undefined! ERROR: "ufs_qcom_phy_disable_iface_clk" [drivers/scsi/ufs/ufs-qcom.ko] undefined! ERROR: "ufs_qcom_phy_start_serdes" [drivers/scsi/ufs/ufs-qcom.ko] undefined! ERROR: "ufs_qcom_phy_calibrate_phy" [drivers/scsi/ufs/ufs-qcom.ko] undefined! ERROR: "ufs_qcom_phy_enable_dev_ref_clk" [drivers/scsi/ufs/ufs-qcom.ko] undefined! ERROR: "ufs_qcom_phy_set_tx_lane_enable" [drivers/scsi/ufs/ufs-qcom.ko] undefined! ERROR: "ufs_qcom_phy_disable_dev_ref_clk" [drivers/scsi/ufs/ufs-qcom.ko] undefined! ERROR: "ufs_qcom_phy_save_controller_version" [drivers/scsi/ufs/ufs-qcom.ko] undefined! ERROR: "ufs_qcom_phy_enable_iface_clk" [drivers/scsi/ufs/ufs-qcom.ko] undefined! make[1]: *** [__modpost] Error 1 Signed-off-by: Yaniv Gardi Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-qcom-ufs.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c index 49a1ed0cef56..107cb57c3513 100644 --- a/drivers/phy/phy-qcom-ufs.c +++ b/drivers/phy/phy-qcom-ufs.c @@ -432,6 +432,7 @@ out_disable_src: out: return ret; } +EXPORT_SYMBOL_GPL(ufs_qcom_phy_enable_ref_clk); static int ufs_qcom_phy_disable_vreg(struct phy *phy, @@ -474,6 +475,7 @@ void ufs_qcom_phy_disable_ref_clk(struct phy *generic_phy) phy->is_ref_clk_enabled = false; } } +EXPORT_SYMBOL_GPL(ufs_qcom_phy_disable_ref_clk); #define UFS_REF_CLK_EN (1 << 5) @@ -517,11 +519,13 @@ void ufs_qcom_phy_enable_dev_ref_clk(struct phy *generic_phy) { ufs_qcom_phy_dev_ref_clk_ctrl(generic_phy, true); } +EXPORT_SYMBOL_GPL(ufs_qcom_phy_enable_dev_ref_clk); void ufs_qcom_phy_disable_dev_ref_clk(struct phy *generic_phy) { ufs_qcom_phy_dev_ref_clk_ctrl(generic_phy, false); } +EXPORT_SYMBOL_GPL(ufs_qcom_phy_disable_dev_ref_clk); /* Turn ON M-PHY RMMI interface clocks */ int ufs_qcom_phy_enable_iface_clk(struct phy *generic_phy) @@ -550,6 +554,7 @@ int ufs_qcom_phy_enable_iface_clk(struct phy *generic_phy) out: return ret; } +EXPORT_SYMBOL_GPL(ufs_qcom_phy_enable_iface_clk); /* Turn OFF M-PHY RMMI interface clocks */ void ufs_qcom_phy_disable_iface_clk(struct phy *generic_phy) @@ -562,6 +567,7 @@ void ufs_qcom_phy_disable_iface_clk(struct phy *generic_phy) phy->is_iface_clk_enabled = false; } } +EXPORT_SYMBOL_GPL(ufs_qcom_phy_disable_iface_clk); int ufs_qcom_phy_start_serdes(struct phy *generic_phy) { @@ -578,6 +584,7 @@ int ufs_qcom_phy_start_serdes(struct phy *generic_phy) return ret; } +EXPORT_SYMBOL_GPL(ufs_qcom_phy_start_serdes); int ufs_qcom_phy_set_tx_lane_enable(struct phy *generic_phy, u32 tx_lanes) { @@ -595,6 +602,7 @@ int ufs_qcom_phy_set_tx_lane_enable(struct phy *generic_phy, u32 tx_lanes) return ret; } +EXPORT_SYMBOL_GPL(ufs_qcom_phy_set_tx_lane_enable); void ufs_qcom_phy_save_controller_version(struct phy *generic_phy, u8 major, u16 minor, u16 step) @@ -605,6 +613,7 @@ void ufs_qcom_phy_save_controller_version(struct phy *generic_phy, ufs_qcom_phy->host_ctrl_rev_minor = minor; ufs_qcom_phy->host_ctrl_rev_step = step; } +EXPORT_SYMBOL_GPL(ufs_qcom_phy_save_controller_version); int ufs_qcom_phy_calibrate_phy(struct phy *generic_phy, bool is_rate_B) { @@ -625,6 +634,7 @@ int ufs_qcom_phy_calibrate_phy(struct phy *generic_phy, bool is_rate_B) return ret; } +EXPORT_SYMBOL_GPL(ufs_qcom_phy_calibrate_phy); int ufs_qcom_phy_remove(struct phy *generic_phy, struct ufs_qcom_phy *ufs_qcom_phy) @@ -662,6 +672,7 @@ int ufs_qcom_phy_is_pcs_ready(struct phy *generic_phy) return ufs_qcom_phy->phy_spec_ops-> is_physical_coding_sublayer_ready(ufs_qcom_phy); } +EXPORT_SYMBOL_GPL(ufs_qcom_phy_is_pcs_ready); int ufs_qcom_phy_power_on(struct phy *generic_phy) { -- cgit 1.4.1 From 08db7e5cbfc0ec3fa4f6ed483dc663afeae7ce16 Mon Sep 17 00:00:00 2001 From: huang lin Date: Fri, 17 Jul 2015 15:29:25 +0800 Subject: phy: rockchip-usb: power down phy when rockchip phy probe rockchip phy are enable when soc reset, to save power consumption, we disable it when probe, and enable each phy when it use Signed-off-by: huang lin Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-rockchip-usb.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/phy/phy-rockchip-usb.c b/drivers/phy/phy-rockchip-usb.c index 5a5c073e72fe..91d6f342c565 100644 --- a/drivers/phy/phy-rockchip-usb.c +++ b/drivers/phy/phy-rockchip-usb.c @@ -98,6 +98,7 @@ static int rockchip_usb_phy_probe(struct platform_device *pdev) struct device_node *child; struct regmap *grf; unsigned int reg_offset; + int err; grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,grf"); if (IS_ERR(grf)) { @@ -129,6 +130,11 @@ static int rockchip_usb_phy_probe(struct platform_device *pdev) return PTR_ERR(rk_phy->phy); } phy_set_drvdata(rk_phy->phy, rk_phy); + + /* only power up usb phy when it use, so disable it when init*/ + err = rockchip_usb_phy_power(rk_phy, 1); + if (err) + return err; } phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); -- cgit 1.4.1 From f9fef6181a9590261c296be9e2a19b6aa3c13ba7 Mon Sep 17 00:00:00 2001 From: Luis de Bethencourt Date: Fri, 18 Sep 2015 18:21:49 +0200 Subject: phy: berlin-sata: Fix module autoload for OF platform driver This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/phy-berlin-sata.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/phy/phy-berlin-sata.c b/drivers/phy/phy-berlin-sata.c index 0062027afb1e..77a2e054fdea 100644 --- a/drivers/phy/phy-berlin-sata.c +++ b/drivers/phy/phy-berlin-sata.c @@ -276,6 +276,7 @@ static const struct of_device_id phy_berlin_sata_of_match[] = { { .compatible = "marvell,berlin2q-sata-phy" }, { }, }; +MODULE_DEVICE_TABLE(of, phy_berlin_sata_of_match); static struct platform_driver phy_berlin_sata_driver = { .probe = phy_berlin_sata_probe, -- cgit 1.4.1 From 8494cdea2223b66491df1264619e2205b4487913 Mon Sep 17 00:00:00 2001 From: Andrzej Hajda Date: Thu, 24 Sep 2015 16:00:10 +0200 Subject: spi: davinci: fix handling platform_get_irq result The function can return negative value. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2046107 Signed-off-by: Andrzej Hajda Signed-off-by: Mark Brown --- drivers/spi/spi-davinci.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c index 3cf9faa6cc3f..a85d863d4a44 100644 --- a/drivers/spi/spi-davinci.c +++ b/drivers/spi/spi-davinci.c @@ -992,11 +992,12 @@ static int davinci_spi_probe(struct platform_device *pdev) goto free_master; } - dspi->irq = platform_get_irq(pdev, 0); - if (dspi->irq <= 0) { + ret = platform_get_irq(pdev, 0); + if (ret == 0) ret = -EINVAL; + if (ret < 0) goto free_master; - } + dspi->irq = ret; ret = devm_request_threaded_irq(&pdev->dev, dspi->irq, davinci_spi_irq, dummy_thread_fn, 0, dev_name(&pdev->dev), dspi); -- cgit 1.4.1 From e5a5d92d9dc36055b971d79e408e345f5ce88701 Mon Sep 17 00:00:00 2001 From: Eric Benard Date: Wed, 23 Sep 2015 17:07:28 +0200 Subject: mxc_nand: fix copy_spare MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit it was broken by 35d5d20efad8a04c8c002c7f31241dff973977a6 "mtd: mxc_nand: cleanup copy_spare function" else we get the following error : [ 22.709507] ubi0: attaching mtd3 [ 23.613470] ubi0: scanning is finished [ 23.617278] ubi0: empty MTD device detected [ 23.623219] Unhandled fault: imprecise external abort (0x1c06) at 0x9e62f0ec [ 23.630291] pgd = 9df80000 [ 23.633005] [9e62f0ec] *pgd=8e60041e(bad) [ 23.637064] Internal error: : 1c06 [#1] SMP ARM [ 23.641605] Modules linked in: [ 23.644687] CPU: 0 PID: 99 Comm: ubiattach Not tainted 4.2.0-dirty #22 [ 23.651222] Hardware name: Freescale i.MX53 (Device Tree Support) [ 23.657322] task: 9e687300 ti: 9dcfc000 task.ti: 9dcfc000 [ 23.662744] PC is at memcpy16_toio+0x4c/0x74 [ 23.667026] LR is at mxc_nand_command+0x484/0x640 [ 23.671739] pc : [<803f9c08>] lr : [<803faeb0>] psr: 60000013 [ 23.671739] sp : 9dcfdb10 ip : 9e62f0ea fp : 9dcfdb1c [ 23.683222] r10: a09c1000 r9 : 0000001a r8 : ffffffff [ 23.688453] r7 : ffffffff r6 : 9e674810 r5 : 9e674810 r4 : 000000b6 [ 23.694985] r3 : a09c16a4 r2 : a09c16a4 r1 : a09c16a4 r0 : 0000ffff [ 23.701521] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 23.708662] Control: 10c5387d Table: 8df80019 DAC: 00000015 [ 23.714413] Process ubiattach (pid: 99, stack limit = 0x9dcfc210) [ 23.720514] Stack: (0x9dcfdb10 to 0x9dcfe000) [ 23.724881] db00: 9dcfdb6c 9dcfdb20 803faeb0 803f9bc8 [ 23.733069] db20: 803f227c 803f9b74 ffffffff 9e674810 9e674810 9e674810 00000040 9e62f010 [ 23.741255] db40: 803faa2c 9e674b40 9e674810 803faa2c 00000400 803faa2c 00000000 9df42800 [ 23.749441] db60: 9dcfdb9c 9dcfdb70 803f2024 803faa38 9e4201cc 00000000 803f0a78 9e674b40 [ 23.757627] db80: 803f1f80 9e674810 00000400 00000400 9dcfdc14 9dcfdba0 803f3bd8 803f1f8c [ 23.765814] dba0: 9e4201cc 00000000 00000580 00000000 00000000 800718c0 0000007f 00001000 [ 23.774000] dbc0: 9df42800 000000e0 00000000 00000000 9e4201cc 00000000 00000000 00000000 [ 23.782186] dbe0: 00000580 00000580 00000000 9e674810 9dcfdc20 9dcfdce8 9df42800 00580000 [ 23.790372] dc00: 00000000 00000400 9dcfdc6c 9dcfdc18 803f3f94 803f39a4 9dcfdc20 00000000 [ 23.798558] dc20: 00000000 00000400 00000000 00000000 00000000 00000000 9df42800 00000000 [ 23.806744] dc40: 9dcfdd0c 00580000 00000000 00000400 00000000 9df42800 9dee1000 9d802000 [ 23.814930] dc60: 9dcfdc94 9dcfdc70 803eb63c 803f3f38 00000400 9dcfdce8 9df42800 dead4ead [ 23.823116] dc80: 803eb5f4 00000000 9dcfdcc4 9dcfdc98 803e82ac 803eb600 00000400 9dcfdce8 [ 23.831301] dca0: 9df42800 00000400 9dee0000 00000000 00000400 00000000 9dcfdd1c 9dcfdcc8 [ 23.839488] dcc0: 80406048 803e8230 00000400 9dcfdce8 9df42800 9dcfdc78 00000008 00000000 [ 23.847673] dce0: 00000000 00000000 00000000 00000004 00000000 9df42800 9dee0000 00000000 [ 23.855859] dd00: 9d802030 00000000 9dc8b214 9d802000 9dcfdd44 9dcfdd20 804066cc 80405f50 [ 23.864047] dd20: 00000400 9dc8b200 9d802030 9df42800 9dee0000 9dc8b200 9dcfdd84 9dcfdd48 [ 23.872233] dd40: 8040a544 804065ac 9e401c80 000080d0 9dcfdd84 00000001 800fc828 9df42400 [ 23.880418] dd60: 00000000 00000080 9dc8b200 9dc8b200 9dc8b200 9dee0000 9dcfdddc 9dcfdd88 [ 23.888605] dd80: 803fb560 8040a440 9dcfddc4 9dcfdd98 800f1428 9dee1000 a0acf000 00000000 [ 23.896792] dda0: 00000000 ffffffff 00000006 00000000 9dee0000 9dee0000 00005600 00000080 [ 23.904979] ddc0: 9dc8b200 a0acf000 9dc8b200 8112514c 9dcfde24 9dcfdde0 803fc08c 803fb4f0 [ 23.913165] dde0: 9e401c80 00000013 9dcfde04 9dcfddf8 8006bbf8 8006ba00 9dcfde24 00000000 [ 23.921351] de00: 9dee0000 00000065 9dee0000 00000001 9dc8b200 8112514c 9dcfde84 9dcfde28 [ 23.929538] de20: 8040afa0 803fb948 ffffffff 00000000 9dc8b214 9dcfde40 800f1428 800f11dc [ 23.937724] de40: 9dc8b21c 9dc8b20c 9dc8b204 9dee1000 9dc8b214 8069bb60 fffff000 fffff000 [ 23.945911] de60: 9e7b5400 00000000 9dee0000 9dee1000 00001000 9e7b5400 9dcfdecc 9dcfde88 [ 23.954097] de80: 803ff1bc 8040a630 9dcfdea4 9dcfde98 00000800 00000800 9dcfdecc 9dcfdea8 [ 23.962284] dea0: 803e8f6c 00000000 7e87ab70 9e7b5400 80113e30 00000003 9dcfc000 00000000 [ 23.970470] dec0: 9dcfdf04 9dcfded0 804008cc 803feb98 ffffffff 00000003 00000000 00000000 [ 23.978656] dee0: 00000000 00000000 9e7cb000 9dc193e0 7e87ab70 9dd92140 9dcfdf7c 9dcfdf08 [ 23.986842] df00: 80113b5c 8040080c 800fbed8 8006bbf0 9e7cb000 00000003 9e7cb000 9dd92140 [ 23.995029] df20: 9dc193e0 9dd92148 9dcfdf4c 9dcfdf38 8011022c 800fbe78 8000f9cc 9e687300 [ 24.003216] df40: 9dcfdf6c 9dcfdf50 8011f798 8007ffe8 7e87ab70 9dd92140 00000003 9dd92140 [ 24.011402] df60: 40186f40 7e87ab70 9dcfc000 00000000 9dcfdfa4 9dcfdf80 80113e30 8011373c [ 24.019588] df80: 7e87ab70 7e87ab70 7e87aea9 00000036 8000fb84 9dcfc000 00000000 9dcfdfa8 [ 24.027775] dfa0: 8000f9a0 80113e00 7e87ab70 7e87ab70 00000003 40186f40 7e87ab70 00000000 [ 24.035962] dfc0: 7e87ab70 7e87ab70 7e87aea9 00000036 00000000 00000000 76fd1f70 00000000 [ 24.044148] dfe0: 76f80f8c 7e87ab28 00009810 76f80fc4 60000010 00000003 00000000 00000000 [ 24.052328] Backtrace: [ 24.054806] [<803f9bbc>] (memcpy16_toio) from [<803faeb0>] (mxc_nand_command+0x484/0x640) [ 24.062996] [<803faa2c>] (mxc_nand_command) from [<803f2024>] (nand_write_page+0xa4/0x154) [ 24.071264] r10:9df42800 r9:00000000 r8:803faa2c r7:00000400 r6:803faa2c r5:9e674810 [ 24.079180] r4:9e674b40 [ 24.081738] [<803f1f80>] (nand_write_page) from [<803f3bd8>] (nand_do_write_ops+0x240/0x444) [ 24.090180] r8:00000400 r7:00000400 r6:9e674810 r5:803f1f80 r4:9e674b40 [ 24.096970] [<803f3998>] (nand_do_write_ops) from [<803f3f94>] (nand_write+0x68/0x88) [ 24.104804] r10:00000400 r9:00000000 r8:00580000 r7:9df42800 r6:9dcfdce8 r5:9dcfdc20 [ 24.112719] r4:9e674810 [ 24.115287] [<803f3f2c>] (nand_write) from [<803eb63c>] (part_write+0x48/0x50) [ 24.122514] r10:9d802000 r9:9dee1000 r8:9df42800 r7:00000000 r6:00000400 r5:00000000 [ 24.130429] r4:00580000 [ 24.132989] [<803eb5f4>] (part_write) from [<803e82ac>] (mtd_write+0x88/0xa0) [ 24.140129] r5:00000000 r4:803eb5f4 [ 24.143748] [<803e8224>] (mtd_write) from [<80406048>] (ubi_io_write+0x104/0x65c) [ 24.151235] r7:00000000 r6:00000400 r5:00000000 r4:9dee0000 [ 24.156968] [<80405f44>] (ubi_io_write) from [<804066cc>] (ubi_io_write_ec_hdr+0x12c/0x190) [ 24.165323] r10:9d802000 r9:9dc8b214 r8:00000000 r7:9d802030 r6:00000000 r5:9dee0000 [ 24.173239] r4:9df42800 [ 24.175798] [<804065a0>] (ubi_io_write_ec_hdr) from [<8040a544>] (ubi_early_get_peb+0x110/0x1f0) [ 24.184587] r6:9dc8b200 r5:9dee0000 r4:9df42800 [ 24.189262] [<8040a434>] (ubi_early_get_peb) from [<803fb560>] (create_vtbl+0x7c/0x238) [ 24.197271] r10:9dee0000 r9:9dc8b200 r8:9dc8b200 r7:9dc8b200 r6:00000080 r5:00000000 [ 24.205187] r4:9df42400 [ 24.207746] [<803fb4e4>] (create_vtbl) from [<803fc08c>] (ubi_read_volume_table+0x750/0xa64) [ 24.216187] r10:8112514c r9:9dc8b200 r8:a0acf000 r7:9dc8b200 r6:00000080 r5:00005600 [ 24.224103] r4:9dee0000 [ 24.226662] [<803fb93c>] (ubi_read_volume_table) from [<8040afa0>] (ubi_attach+0x97c/0x152c) [ 24.235103] r10:8112514c r9:9dc8b200 r8:00000001 r7:9dee0000 r6:00000065 r5:9dee0000 [ 24.243018] r4:00000000 [ 24.245579] [<8040a624>] (ubi_attach) from [<803ff1bc>] (ubi_attach_mtd_dev+0x630/0xbac) [ 24.253673] r10:9e7b5400 r9:00001000 r8:9dee1000 r7:9dee0000 r6:00000000 r5:9e7b5400 [ 24.261588] r4:fffff000 [ 24.264148] [<803feb8c>] (ubi_attach_mtd_dev) from [<804008cc>] (ctrl_cdev_ioctl+0xcc/0x1cc) [ 24.272589] r10:00000000 r9:9dcfc000 r8:00000003 r7:80113e30 r6:9e7b5400 r5:7e87ab70 [ 24.280505] r4:00000000 [ 24.283070] [<80400800>] (ctrl_cdev_ioctl) from [<80113b5c>] (do_vfs_ioctl+0x42c/0x6c4) [ 24.291077] r6:9dd92140 r5:7e87ab70 r4:9dc193e0 [ 24.295753] [<80113730>] (do_vfs_ioctl) from [<80113e30>] (SyS_ioctl+0x3c/0x64) [ 24.303066] r10:00000000 r9:9dcfc000 r8:7e87ab70 r7:40186f40 r6:9dd92140 r5:00000003 [ 24.310981] r4:9dd92140 [ 24.313549] [<80113df4>] (SyS_ioctl) from [<8000f9a0>] (ret_fast_syscall+0x0/0x54) [ 24.321123] r9:9dcfc000 r8:8000fb84 r7:00000036 r6:7e87aea9 r5:7e87ab70 r4:7e87ab70 [ 24.328957] Code: e1c300b0 e1510002 e1a03001 1afffff9 (e89da800) [ 24.335066] ---[ end trace ab1cb17887f21bbb ]--- [ 24.340249] Unhandled fault: imprecise external abort (0x1c06) at 0x7ee8bcf0 [ 24.347310] pgd = 9df3c000 [ 24.350023] [7ee8bcf0] *pgd=8dcbf831, *pte=8eb3334f, *ppte=8eb3383f Segmentation fault Fixes: 35d5d20efad8 ("mtd: mxc_nand: cleanup copy_spare function") Signed-off-by: Eric Bénard Reviewed-by: Uwe Kleine-König Reviewed-by: Baruch Siach Cc: Signed-off-by: Brian Norris --- drivers/mtd/nand/mxc_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 2426db88db36..f04445b992f5 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -879,7 +879,7 @@ static void copy_spare(struct mtd_info *mtd, bool bfrom) oob_chunk_size); /* the last chunk */ - memcpy16_toio(&s[oob_chunk_size * sparebuf_size], + memcpy16_toio(&s[i * sparebuf_size], &d[i * oob_chunk_size], host->used_oobsize - i * oob_chunk_size); } -- cgit 1.4.1 From a73b4db2a23f0bf9f98b0cb59fb1b8da26959be3 Mon Sep 17 00:00:00 2001 From: "Suzuki K. Poulose" Date: Mon, 28 Sep 2015 15:57:24 +0100 Subject: arm-cci500: Don't enable PMU driver by default Disable building CCI-500 PMU driver by default. Reported-by: Russell King Cc: Punit Agrawal Cc: Mark Rutland Cc: arm@kernel.org Signed-off-by: Suzuki K. Poulose Signed-off-by: Olof Johansson --- drivers/bus/Kconfig | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig index 1a82f3a17681..0ebca8ba7bc4 100644 --- a/drivers/bus/Kconfig +++ b/drivers/bus/Kconfig @@ -36,7 +36,6 @@ config ARM_CCI400_PORT_CTRL config ARM_CCI500_PMU bool "ARM CCI500 PMU support" - default y depends on (ARM && CPU_V7) || ARM64 depends on PERF_EVENTS select ARM_CCI_PMU -- cgit 1.4.1 From 499f3aa4323775d5320bdf7ccc26576c54a54169 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Fri, 18 Sep 2015 16:27:07 +0530 Subject: iommu/vt-d: Fix memory leak in dmar_insert_one_dev_info() We are returning NULL if we are not able to attach the iommu to the domain but while returning we missed freeing info. Signed-off-by: Sudip Mukherjee Signed-off-by: Joerg Roedel --- drivers/iommu/intel-iommu.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 2d7349a3ee14..da99310c1b25 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2301,6 +2301,7 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu, if (ret) { spin_unlock_irqrestore(&device_domain_lock, flags); + free_devinfo_mem(info); return NULL; } -- cgit 1.4.1 From 6b3600b4ba0810c84437cf76556d9afbd55c1bfc Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Sat, 26 Sep 2015 21:21:12 +0800 Subject: regulator: axp20x: Fix enable bit indexes for DCDC4 and DCDC5 The enable bit indexes for DCDC4 and DCDC5 regulators are off by 1. We haven't run into any problems with this since either the regulators aren't defined in the DT and aren't used, or all the DCDC regulators have the "always-on" property set, as they are almost always used for system critical loads. Signed-off-by: Chen-Yu Tsai Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/regulator/axp20x-regulator.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c index 01bf3476a791..a9567af7cec0 100644 --- a/drivers/regulator/axp20x-regulator.c +++ b/drivers/regulator/axp20x-regulator.c @@ -192,9 +192,9 @@ static const struct regulator_desc axp22x_regulators[] = { AXP_DESC(AXP22X, DCDC3, "dcdc3", "vin3", 600, 1860, 20, AXP22X_DCDC3_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(3)), AXP_DESC(AXP22X, DCDC4, "dcdc4", "vin4", 600, 1540, 20, - AXP22X_DCDC4_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(3)), + AXP22X_DCDC4_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(4)), AXP_DESC(AXP22X, DCDC5, "dcdc5", "vin5", 1000, 2550, 50, - AXP22X_DCDC5_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(4)), + AXP22X_DCDC5_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(5)), /* secondary switchable output of DCDC1 */ AXP_DESC_SW(AXP22X, DC1SW, "dc1sw", "dcdc1", 1600, 3400, 100, AXP22X_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(7)), -- cgit 1.4.1 From 14a21e7ba8cf6eab968310c92ca19a00f13ce3d9 Mon Sep 17 00:00:00 2001 From: Tobias Jakobi Date: Mon, 21 Sep 2015 20:23:52 +0200 Subject: PM / devfreq: Fix governor_store() Writing the currently set governor into sysfs currently seems to fail. Fix this by setting the return code to zero before leaving governor_store(). Signed-off-by: Tobias Jakobi Signed-off-by: MyungJoo Ham --- drivers/devfreq/devfreq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index 3927ed9fdbd5..4f1b0cebe9a4 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -795,8 +795,10 @@ static ssize_t governor_store(struct device *dev, struct device_attribute *attr, ret = PTR_ERR(governor); goto out; } - if (df->governor == governor) + if (df->governor == governor) { + ret = 0; goto out; + } if (df->governor) { ret = df->governor->event_handler(df, DEVFREQ_GOV_STOP, NULL); -- cgit 1.4.1 From 4d370b74e7ce175f26654fe2db49db342566cdc8 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Sat, 26 Sep 2015 14:22:10 +0530 Subject: fbdev: broadsheetfb: fix memory leak We have requested the firmware and it was loaded but we missed releasing it both on success and error. Signed-off-by: Sudip Mukherjee Signed-off-by: Tomi Valkeinen --- drivers/video/fbdev/broadsheetfb.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/video/fbdev/broadsheetfb.c b/drivers/video/fbdev/broadsheetfb.c index 0e5fde1d3ffb..9f9a7bef1ff6 100644 --- a/drivers/video/fbdev/broadsheetfb.c +++ b/drivers/video/fbdev/broadsheetfb.c @@ -752,7 +752,7 @@ static ssize_t broadsheet_loadstore_waveform(struct device *dev, if ((fw_entry->size < 8*1024) || (fw_entry->size > 64*1024)) { dev_err(dev, "Invalid waveform\n"); err = -EINVAL; - goto err_failed; + goto err_fw; } mutex_lock(&(par->io_lock)); @@ -762,13 +762,15 @@ static ssize_t broadsheet_loadstore_waveform(struct device *dev, mutex_unlock(&(par->io_lock)); if (err < 0) { dev_err(dev, "Failed to store broadsheet waveform\n"); - goto err_failed; + goto err_fw; } dev_info(dev, "Stored broadsheet waveform, size %zd\n", fw_entry->size); - return len; + err = len; +err_fw: + release_firmware(fw_entry); err_failed: return err; } -- cgit 1.4.1 From 7022cfdfe07dcfccc294f04de5f75e0a37b16174 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Sat, 26 Sep 2015 15:01:06 +0530 Subject: usb: gadget: bdc: fix memory leak If dma_pool_alloc() fails we are jumping to fail and releasing all the bd_tables which have been added to the chain but we missed freeing this bd_table which was just allocated and still not added to the chain of bd_table. Signed-off-by: Sudip Mukherjee Signed-off-by: Felipe Balbi --- drivers/usb/gadget/udc/bdc/bdc_ep.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/udc/bdc/bdc_ep.c b/drivers/usb/gadget/udc/bdc/bdc_ep.c index d1b81539d632..d6199507f861 100644 --- a/drivers/usb/gadget/udc/bdc/bdc_ep.c +++ b/drivers/usb/gadget/udc/bdc/bdc_ep.c @@ -159,8 +159,10 @@ static int ep_bd_list_alloc(struct bdc_ep *ep) bd_table->start_bd = dma_pool_alloc(bdc->bd_table_pool, GFP_ATOMIC, &dma); - if (!bd_table->start_bd) + if (!bd_table->start_bd) { + kfree(bd_table); goto fail; + } bd_table->dma = dma; -- cgit 1.4.1 From 9ae7ce00cc1353155b1914bfc40e8362efef7d1c Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Tue, 29 Sep 2015 18:21:18 +0900 Subject: usb: renesas_usbhs: fix build warning if 64-bit architecture This patch fixes the following warning if 64-bit architecture environment: ./drivers/usb/renesas_usbhs/common.c:496:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] dparam->type = of_id ? (u32)of_id->data : 0; Acked-by: Geert Uytterhoeven Signed-off-by: Yoshihiro Shimoda Signed-off-by: Felipe Balbi --- drivers/usb/renesas_usbhs/common.c | 2 +- include/linux/usb/renesas_usbhs.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index 7b98e1d9194c..0ce398c5482e 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -493,7 +493,7 @@ static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev) return NULL; dparam = &info->driver_param; - dparam->type = of_id ? (u32)of_id->data : 0; + dparam->type = of_id ? (uintptr_t)of_id->data : 0; if (!of_property_read_u32(dev->of_node, "renesas,buswait", &tmp)) dparam->buswait_bwait = tmp; gpio = of_get_named_gpio_flags(dev->of_node, "renesas,enable-gpio", 0, diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h index 3dd5a781da99..bfb74723f151 100644 --- a/include/linux/usb/renesas_usbhs.h +++ b/include/linux/usb/renesas_usbhs.h @@ -157,7 +157,7 @@ struct renesas_usbhs_driver_param { */ int pio_dma_border; /* default is 64byte */ - u32 type; + uintptr_t type; u32 enable_gpio; /* -- cgit 1.4.1 From f5f6afa85aa82a8ee59072f2d09f2b381f24c871 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Tue, 29 Sep 2015 18:21:19 +0900 Subject: usb: renesas_usbhs: Add support for R-Car H3 This patch adds a compatible string to support for R-Car H3. Since the HS-USB controller of R-Car H3 is almost the same specification with R-Car Gen2 (these have 16 pipes and usb-dmac), this patch sets the "type" of renesas_usbhs_driver_param to USBHS_TYPE_RCAR_GEN2. Acked-by: Geert Uytterhoeven Signed-off-by: Yoshihiro Shimoda Signed-off-by: Felipe Balbi --- Documentation/devicetree/bindings/usb/renesas_usbhs.txt | 1 + drivers/usb/renesas_usbhs/common.c | 5 +++++ 2 files changed, 6 insertions(+) (limited to 'drivers') diff --git a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt index 64a4ca6cf96f..7d48f63db44e 100644 --- a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt +++ b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt @@ -5,6 +5,7 @@ Required properties: - "renesas,usbhs-r8a7790" - "renesas,usbhs-r8a7791" - "renesas,usbhs-r8a7794" + - "renesas,usbhs-r8a7795" - reg: Base address and length of the register for the USBHS - interrupts: Interrupt specifier for the USBHS - clocks: A list of phandle + clock specifier pairs diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index 0ce398c5482e..d82fa36c3465 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -476,6 +476,11 @@ static const struct of_device_id usbhs_of_match[] = { .compatible = "renesas,usbhs-r8a7794", .data = (void *)USBHS_TYPE_RCAR_GEN2, }, + { + /* Gen3 is compatible with Gen2 */ + .compatible = "renesas,usbhs-r8a7795", + .data = (void *)USBHS_TYPE_RCAR_GEN2, + }, { }, }; MODULE_DEVICE_TABLE(of, usbhs_of_match); -- cgit 1.4.1 From 8dde152ea34860403c839598bdef3f07239eb25a Mon Sep 17 00:00:00 2001 From: Andrew Donnellan Date: Wed, 30 Sep 2015 11:58:05 +1000 Subject: cxl: fix leak of IRQ names in cxl_free_afu_irqs() cxl_free_afu_irqs() doesn't free IRQ names when it releases an AFU's IRQ ranges. The userspace API equivalent in afu_release_irqs() calls afu_irq_name_free() to release the IRQ names. Call afu_irq_name_free() in cxl_free_afu_irqs() to release the IRQ names. Make afu_irq_name_free() non-static to allow this. Reported-by: Matthew R. Ochs Fixes: 6f7f0b3df6d4 ("cxl: Add AFU virtual PHB and kernel API") Signed-off-by: Andrew Donnellan Signed-off-by: Ian Munsie Reviewed-by: Matthew R. Ochs Signed-off-by: Michael Ellerman --- drivers/misc/cxl/api.c | 1 + drivers/misc/cxl/cxl.h | 1 + drivers/misc/cxl/irq.c | 2 +- 3 files changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c index 8af12c884b04..103baf0e0c5b 100644 --- a/drivers/misc/cxl/api.c +++ b/drivers/misc/cxl/api.c @@ -105,6 +105,7 @@ EXPORT_SYMBOL_GPL(cxl_allocate_afu_irqs); void cxl_free_afu_irqs(struct cxl_context *ctx) { + afu_irq_name_free(ctx); cxl_release_irq_ranges(&ctx->irqs, ctx->afu->adapter); } EXPORT_SYMBOL_GPL(cxl_free_afu_irqs); diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 1c30ef77073d..0cfb9c129f27 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -677,6 +677,7 @@ int cxl_register_serr_irq(struct cxl_afu *afu); void cxl_release_serr_irq(struct cxl_afu *afu); int afu_register_irqs(struct cxl_context *ctx, u32 count); void afu_release_irqs(struct cxl_context *ctx, void *cookie); +void afu_irq_name_free(struct cxl_context *ctx); irqreturn_t cxl_slice_irq_err(int irq, void *data); int cxl_debugfs_init(void); diff --git a/drivers/misc/cxl/irq.c b/drivers/misc/cxl/irq.c index 583b42afeda2..38b57d65b731 100644 --- a/drivers/misc/cxl/irq.c +++ b/drivers/misc/cxl/irq.c @@ -414,7 +414,7 @@ void cxl_release_psl_irq(struct cxl_afu *afu) kfree(afu->psl_irq_name); } -static void afu_irq_name_free(struct cxl_context *ctx) +void afu_irq_name_free(struct cxl_context *ctx) { struct cxl_irq_name *irq_name, *tmp; -- cgit 1.4.1 From 52adee580d3c71a0dfabc3168597421981d68b86 Mon Sep 17 00:00:00 2001 From: Andrew Donnellan Date: Wed, 30 Sep 2015 11:58:06 +1000 Subject: cxl: fix leak of ctx->irq_bitmap when releasing context via kernel API At present, ctx->irq_bitmap is freed in afu_release_irqs(), which is called from afu_release() via cxl_context_detach(). Move the freeing of ctx->irq_bitmap from afu_release_irqs() to reclaim_ctx() (called through cxl_context_free()) so it's freed when releasing a context via the kernel API (cxl_release_context()) or the userspace API (afu_release()). Reported-by: Matthew R. Ochs Fixes: 6f7f0b3df6d4 ("cxl: Add AFU virtual PHB and kernel API") Signed-off-by: Andrew Donnellan Acked-by: Ian Munsie Reviewed-by: Matthew R. Ochs Signed-off-by: Michael Ellerman --- drivers/misc/cxl/context.c | 3 +++ drivers/misc/cxl/irq.c | 2 -- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c index e762f85ee233..2faa1270d085 100644 --- a/drivers/misc/cxl/context.c +++ b/drivers/misc/cxl/context.c @@ -275,6 +275,9 @@ static void reclaim_ctx(struct rcu_head *rcu) if (ctx->kernelapi) kfree(ctx->mapping); + if (ctx->irq_bitmap) + kfree(ctx->irq_bitmap); + kfree(ctx); } diff --git a/drivers/misc/cxl/irq.c b/drivers/misc/cxl/irq.c index 38b57d65b731..09a406058c46 100644 --- a/drivers/misc/cxl/irq.c +++ b/drivers/misc/cxl/irq.c @@ -524,7 +524,5 @@ void afu_release_irqs(struct cxl_context *ctx, void *cookie) afu_irq_name_free(ctx); cxl_release_irq_ranges(&ctx->irqs, ctx->afu->adapter); - kfree(ctx->irq_bitmap); - ctx->irq_bitmap = NULL; ctx->irq_count = 0; } -- cgit 1.4.1 From 5f81b95fe2a2de4ec51d46ffd04fa40dfc0cb26a Mon Sep 17 00:00:00 2001 From: Andrew Donnellan Date: Wed, 30 Sep 2015 11:58:07 +1000 Subject: cxl: fix leak of ctx->mapping when releasing kernel API contexts When a context is created via the kernel API, ctx->mapping is allocated within the kernel and thus needs to be freed when the context is freed. reclaim_ctx() attempts to do this for contexts with the ctx->kernelapi flag set, but afu_release() (which can be called from the kernel API through cxl_fd_release()) sets ctx->mapping to NULL before calling cxl_context_free() to free the context. Add a check to afu_release() so that the mappings in contexts created via the kernel API are left alone so reclaim_ctx() can free them. Reported-by: Matthew R. Ochs Fixes: 6f7f0b3df6d4 ("cxl: Add AFU virtual PHB and kernel API") Signed-off-by: Andrew Donnellan Acked-by: Ian Munsie Reviewed-by: Matthew R. Ochs Signed-off-by: Michael Ellerman --- drivers/misc/cxl/file.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c index a30bf285b5bd..7ccd2998be92 100644 --- a/drivers/misc/cxl/file.c +++ b/drivers/misc/cxl/file.c @@ -120,9 +120,16 @@ int afu_release(struct inode *inode, struct file *file) __func__, ctx->pe); cxl_context_detach(ctx); - mutex_lock(&ctx->mapping_lock); - ctx->mapping = NULL; - mutex_unlock(&ctx->mapping_lock); + + /* + * Delete the context's mapping pointer, unless it's created by the + * kernel API, in which case leave it so it can be freed by reclaim_ctx() + */ + if (!ctx->kernelapi) { + mutex_lock(&ctx->mapping_lock); + ctx->mapping = NULL; + mutex_unlock(&ctx->mapping_lock); + } put_device(&ctx->afu->dev); -- cgit 1.4.1 From 06423121d9eba0a56b9341cf82b88479017bce14 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 1 Oct 2015 10:59:48 +0100 Subject: regulator: core: Handle probe deferral from DT when resolving supplies When resolving regulator-regulator supplies we ignore probe deferral returns from regulator_dev_lookup() (such as are generated for DT when we can see a supply is registered) and just fall back to the dummy regulator if there are full constraints (as is the case for DT). This means that probe deferral is broken for DT systems, fix that by paying attention to -EPROBE_DEFER return codes like we do -ENODEV. A further patch will simplify this further, this is a minimal fix for the specific issue. Fixes: 9f7e25edb1575a6d2 (regulator: core: Handle full constraints systems when resolving supplies) Reported-by: Sascha Hauer Tested-by: Sascha Hauer Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/regulator/core.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 7849187d91ae..8a34f6acc801 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1403,6 +1403,10 @@ static int regulator_resolve_supply(struct regulator_dev *rdev) return 0; } + /* Did the lookup explicitly defer for us? */ + if (ret == -EPROBE_DEFER) + return ret; + if (have_full_constraints()) { r = dummy_regulator_rdev; } else { -- cgit 1.4.1 From 2a708cff93f1845b9239bc7d6310aef54e716c6a Mon Sep 17 00:00:00 2001 From: Junichi Nomura Date: Thu, 1 Oct 2015 08:31:51 +0000 Subject: dm: fix AB-BA deadlock in __dm_destroy() __dm_destroy() takes io_barrier SRCU lock (dm_get_live_table) and suspend_lock in reverse order. Doing so can cause AB-BA deadlock: __dm_destroy dm_swap_table --------------------------------------------------- mutex_lock(suspend_lock) dm_get_live_table() srcu_read_lock(io_barrier) dm_sync_table() synchronize_srcu(io_barrier) .. waiting for dm_put_live_table() mutex_lock(suspend_lock) .. waiting for suspend_lock Fix this by taking the locks in proper order. Signed-off-by: Jun'ichi Nomura Fixes: ab7c7bb6f4ab ("dm: hold suspend_lock while suspending device during device deletion") Acked-by: Mikulas Patocka Signed-off-by: Mike Snitzer Cc: stable@vger.kernel.org --- drivers/md/dm.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 6264781dc69a..7289ece3b560 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2837,8 +2837,6 @@ static void __dm_destroy(struct mapped_device *md, bool wait) might_sleep(); - map = dm_get_live_table(md, &srcu_idx); - spin_lock(&_minor_lock); idr_replace(&_minor_idr, MINOR_ALLOCED, MINOR(disk_devt(dm_disk(md)))); set_bit(DMF_FREEING, &md->flags); @@ -2852,14 +2850,14 @@ static void __dm_destroy(struct mapped_device *md, bool wait) * do not race with internal suspend. */ mutex_lock(&md->suspend_lock); + map = dm_get_live_table(md, &srcu_idx); if (!dm_suspended_md(md)) { dm_table_presuspend_targets(map); dm_table_postsuspend_targets(map); } - mutex_unlock(&md->suspend_lock); - /* dm_put_live_table must be before msleep, otherwise deadlock is possible */ dm_put_live_table(md, srcu_idx); + mutex_unlock(&md->suspend_lock); /* * Rare, but there may be I/O requests still going to complete, -- cgit 1.4.1 From 47b91923ea41288751e83a5b080576085a831333 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 14 Sep 2015 11:32:47 +0300 Subject: mfd: intel-lpss: Fix build error when !CONFIG_PM_SLEEP Jim Davis reported the compilation error with a random configuration which apparently has CONFIG_PM=y and CONFIG_PM_SLEEP=n. With that conditions we have missed definition of INTEL_LPSS_SLEEP_PM_OPS macro. Add it here. Reported-by: Jim Davis Signed-off-by: Andy Shevchenko Signed-off-by: Lee Jones --- drivers/mfd/intel-lpss.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/mfd/intel-lpss.h b/drivers/mfd/intel-lpss.h index f28cb28a62f8..2c7f8d7c0595 100644 --- a/drivers/mfd/intel-lpss.h +++ b/drivers/mfd/intel-lpss.h @@ -42,6 +42,8 @@ int intel_lpss_resume(struct device *dev); .thaw = intel_lpss_resume, \ .poweroff = intel_lpss_suspend, \ .restore = intel_lpss_resume, +#else +#define INTEL_LPSS_SLEEP_PM_OPS #endif #define INTEL_LPSS_RUNTIME_PM_OPS \ -- cgit 1.4.1 From 1b52e50f2a402a266f1ba2281f0a57e87637a047 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Mon, 21 Sep 2015 14:26:54 +0200 Subject: mfd: max77843: Fix max77843_chg_init() return on error If i2c_new_dummy() fails in max77843_chg_init(), an PTR_ERR(NULL) is returned which is 0. So the function was wrongly returning a success value instead of an error code. Cc: stable@vger.kernel.org # 4.1 Fixes: c7f585fe46d8 ("mfd: max77843: Add max77843 MFD driver core driver") Signed-off-by: Javier Martinez Canillas Reviewed-by: Krzysztof Kozlowski Signed-off-by: Lee Jones --- drivers/mfd/max77843.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/max77843.c b/drivers/mfd/max77843.c index c52162ea3d0a..586098f1b233 100644 --- a/drivers/mfd/max77843.c +++ b/drivers/mfd/max77843.c @@ -80,7 +80,7 @@ static int max77843_chg_init(struct max77693_dev *max77843) if (!max77843->i2c_chg) { dev_err(&max77843->i2c->dev, "Cannot allocate I2C device for Charger\n"); - return PTR_ERR(max77843->i2c_chg); + return -ENODEV; } i2c_set_clientdata(max77843->i2c_chg, max77843); -- cgit 1.4.1 From 1378889c563a2938d231203ed36c041af183b798 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Sat, 26 Sep 2015 10:19:15 +1000 Subject: scsi_dh: Use the correct module name when loading device handler This fixes a bug in recent kernels which results in failure to boot on systems that have multipath SCSI disks. I observed this failure on a POWER8 server where all the disks are multipath SCSI disks. The symptoms are several messages like this on the console: [ 3.018700] device-mapper: table: 253:0: multipath: error attaching hardware handler [ 3.018828] device-mapper: ioctl: error adding target to table and the system does not find its disks, and therefore fails to boot. Bisection revealed that the bug was introduced in commit 566079c849cf, "dm-mpath, scsi_dh: request scsi_dh modules in scsi_dh, not dm-mpath". The specific reason for the failure is that where we previously loaded the "scsi_dh_alua" module, we are now trying to load the "alua" module, which doesn't exist. To fix this, we change the request_module call in scsi_dh_lookup() to prepend "scsi_dh_" to the name, just like the old code in drivers/md/dm-mpath.c:parse_hw_handler() used to do. [jejb: also fixes issue spotted by Sasha Levin that formatting characters could be passed in via sysfs and cause issues with request_module()] Fixes: 566079c849cf Signed-off-by: Paul Mackerras Cc: Sasha Levin Reviewed-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Signed-off-by: James Bottomley --- drivers/scsi/scsi_dh.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/scsi_dh.c b/drivers/scsi/scsi_dh.c index edb044a7b56d..0a2168e69bbc 100644 --- a/drivers/scsi/scsi_dh.c +++ b/drivers/scsi/scsi_dh.c @@ -111,7 +111,7 @@ static struct scsi_device_handler *scsi_dh_lookup(const char *name) dh = __scsi_dh_lookup(name); if (!dh) { - request_module(name); + request_module("scsi_dh_%s", name); dh = __scsi_dh_lookup(name); } -- cgit 1.4.1 From 6d3cbfa718eeedd70efb9eb04ce9b261b6fa5b7b Mon Sep 17 00:00:00 2001 From: Geliang Tang Date: Thu, 1 Oct 2015 22:18:19 +0800 Subject: PM / devfreq: fix double kfree When device_register() fails, kfree(devfreq) is called already in devfreq_dev_release(), hence there is no need to call kfree(devfreq) in err_dev again. Signed-off-by: Geliang Tang Signed-off-by: MyungJoo Ham --- drivers/devfreq/devfreq.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index 4f1b0cebe9a4..ca848cc6a8fd 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -492,7 +492,7 @@ struct devfreq *devfreq_add_device(struct device *dev, if (err) { put_device(&devfreq->dev); mutex_unlock(&devfreq->lock); - goto err_dev; + goto err_out; } mutex_unlock(&devfreq->lock); @@ -518,7 +518,6 @@ struct devfreq *devfreq_add_device(struct device *dev, err_init: list_del(&devfreq->node); device_unregister(&devfreq->dev); -err_dev: kfree(devfreq); err_out: return ERR_PTR(err); -- cgit 1.4.1 From 4b3061b39132cba0c31b0eb767a9faeedf9437fc Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Mon, 24 Aug 2015 10:35:02 +0300 Subject: clk: ti: clk-7xx: Remove hardwired ABE clock configuration The ABE related clocks should be configured via DT and not have it wired inside of the kernel. Fixes: a74c52def9ab ("clk: ti: clk-7xx: Correct ABE DPLL configuration") Signed-off-by: Peter Ujfalusi Signed-off-by: Tero Kristo --- drivers/clk/ti/clk-7xx.c | 18 +----------------- 1 file changed, 1 insertion(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/clk/ti/clk-7xx.c b/drivers/clk/ti/clk-7xx.c index 9b5b289e6334..a911d7de3377 100644 --- a/drivers/clk/ti/clk-7xx.c +++ b/drivers/clk/ti/clk-7xx.c @@ -18,7 +18,6 @@ #include "clock.h" -#define DRA7_DPLL_ABE_DEFFREQ 180633600 #define DRA7_DPLL_GMAC_DEFFREQ 1000000000 #define DRA7_DPLL_USB_DEFFREQ 960000000 @@ -313,27 +312,12 @@ static struct ti_dt_clk dra7xx_clks[] = { int __init dra7xx_dt_clk_init(void) { int rc; - struct clk *abe_dpll_mux, *sys_clkin2, *dpll_ck, *hdcp_ck; + struct clk *dpll_ck, *hdcp_ck; ti_dt_clocks_register(dra7xx_clks); omap2_clk_disable_autoidle_all(); - abe_dpll_mux = clk_get_sys(NULL, "abe_dpll_sys_clk_mux"); - sys_clkin2 = clk_get_sys(NULL, "sys_clkin2"); - dpll_ck = clk_get_sys(NULL, "dpll_abe_ck"); - - rc = clk_set_parent(abe_dpll_mux, sys_clkin2); - if (!rc) - rc = clk_set_rate(dpll_ck, DRA7_DPLL_ABE_DEFFREQ); - if (rc) - pr_err("%s: failed to configure ABE DPLL!\n", __func__); - - dpll_ck = clk_get_sys(NULL, "dpll_abe_m2x2_ck"); - rc = clk_set_rate(dpll_ck, DRA7_DPLL_ABE_DEFFREQ * 2); - if (rc) - pr_err("%s: failed to configure ABE DPLL m2x2!\n", __func__); - dpll_ck = clk_get_sys(NULL, "dpll_gmac_ck"); rc = clk_set_rate(dpll_ck, DRA7_DPLL_GMAC_DEFFREQ); if (rc) -- cgit 1.4.1 From 19e79687de22f23bcfb5e79cce3daba20af228d1 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 29 Sep 2015 15:01:08 +0100 Subject: clk: ti: fix dual-registration of uart4_ick On the OMAP AM3517 platform the uart4_ick gets registered twice, causing any power management to /dev/ttyO3 to fail when trying to wake the device up. This solves the following oops: [] Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa09e008 [] PC is at serial_omap_pm+0x48/0x15c [] LR is at _raw_spin_unlock_irqrestore+0x30/0x5c Fixes: aafd900cab87 ("CLK: TI: add omap3 clock init file") Cc: stable@vger.kernel.org Cc: mturquette@baylibre.com Cc: sboyd@codeaurora.org Cc: linux-clk@vger.kernel.org Cc: linux-omap@vger.kernel.org Cc: linux-kernel@lists.codethink.co.uk Signed-off-by: Ben Dooks Signed-off-by: Tero Kristo --- drivers/clk/ti/clk-3xxx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/clk/ti/clk-3xxx.c b/drivers/clk/ti/clk-3xxx.c index 676ee8f6d813..8831e1a05367 100644 --- a/drivers/clk/ti/clk-3xxx.c +++ b/drivers/clk/ti/clk-3xxx.c @@ -374,7 +374,6 @@ static struct ti_dt_clk omap3xxx_clks[] = { DT_CLK(NULL, "gpio2_ick", "gpio2_ick"), DT_CLK(NULL, "wdt3_ick", "wdt3_ick"), DT_CLK(NULL, "uart3_ick", "uart3_ick"), - DT_CLK(NULL, "uart4_ick", "uart4_ick"), DT_CLK(NULL, "gpt9_ick", "gpt9_ick"), DT_CLK(NULL, "gpt8_ick", "gpt8_ick"), DT_CLK(NULL, "gpt7_ick", "gpt7_ick"), @@ -519,6 +518,7 @@ static struct ti_dt_clk am35xx_clks[] = { static struct ti_dt_clk omap36xx_clks[] = { DT_CLK(NULL, "omap_192m_alwon_fck", "omap_192m_alwon_fck"), DT_CLK(NULL, "uart4_fck", "uart4_fck"), + DT_CLK(NULL, "uart4_ick", "uart4_ick"), { .node_name = NULL }, }; -- cgit 1.4.1 From 7aba4f5201d1b7b3ddb0b03883d9edf69851ddad Mon Sep 17 00:00:00 2001 From: Suman Anna Date: Tue, 29 Sep 2015 17:37:47 -0500 Subject: clk: ti: dflt: fix enable_reg validity check The default clock enabling functions for TI clocks - omap2_dflt_clk_enable() and omap2_dflt_clk_disable() perform a NULL check for the enable_reg field of the clk_hw_omap structure. This enable_reg field however is merely a combination of the index of the master IP module, and the offset from the master IP module's base address. A value of 0 is perfectly valid, and the current error checking will fail in these cases. The issue was found when trying to enable the iva2_ck clock on OMAP3 platforms. So, switch the check to use IS_ERR. This correction is similar to the logic used in commit c807dbedb5e5 ("clk: ti: fix ti_clk_get_reg_addr error handling"). Fixes: 9f37e90efaf0 ("clk: ti: dflt: move support for default gate clock..") Signed-off-by: Suman Anna Signed-off-by: Tero Kristo --- drivers/clk/ti/clkt_dflt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/clk/ti/clkt_dflt.c b/drivers/clk/ti/clkt_dflt.c index 90d7d8a21c49..1ddc288fce4e 100644 --- a/drivers/clk/ti/clkt_dflt.c +++ b/drivers/clk/ti/clkt_dflt.c @@ -222,7 +222,7 @@ int omap2_dflt_clk_enable(struct clk_hw *hw) } } - if (unlikely(!clk->enable_reg)) { + if (unlikely(IS_ERR(clk->enable_reg))) { pr_err("%s: %s missing enable_reg\n", __func__, clk_hw_get_name(hw)); ret = -EINVAL; @@ -264,7 +264,7 @@ void omap2_dflt_clk_disable(struct clk_hw *hw) u32 v; clk = to_clk_hw_omap(hw); - if (!clk->enable_reg) { + if (IS_ERR(clk->enable_reg)) { /* * 'independent' here refers to a clock which is not * controlled by its parent. -- cgit 1.4.1 From d50a9e1b6de45db883f594cea0ecd1379fd3f669 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 19 Sep 2015 17:56:44 -0400 Subject: pinctrl: sun5i: Fix a10s pwm1 pinctrl mapping The comment for PG14 mux setting 3 already correctly states that this muxes PG13 to pwm1, but the text ascociated with it said uart3, fix this. Note that we use "pwm" rather then "pwm1" to be consistent with pwm0 where the mux setting is also simply called "pwm" and to be consistent with sun4i/sun7i which do the same. Signed-off-by: Hans de Goede Acked-by: Maxime Ripard Signed-off-by: Linus Walleij --- drivers/pinctrl/sunxi/pinctrl-sun5i-a10s.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/pinctrl/sunxi/pinctrl-sun5i-a10s.c b/drivers/pinctrl/sunxi/pinctrl-sun5i-a10s.c index 63676617bc59..f9a3f8f446f7 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sun5i-a10s.c +++ b/drivers/pinctrl/sunxi/pinctrl-sun5i-a10s.c @@ -653,7 +653,7 @@ static const struct sunxi_desc_pin sun5i_a10s_pins[] = { SUNXI_FUNCTION(0x0, "gpio_in"), SUNXI_FUNCTION(0x1, "gpio_out"), SUNXI_FUNCTION(0x2, "spi1"), /* CS1 */ - SUNXI_FUNCTION(0x3, "uart3"), /* PWM1 */ + SUNXI_FUNCTION(0x3, "pwm"), /* PWM1 */ SUNXI_FUNCTION(0x5, "uart2"), /* CTS */ SUNXI_FUNCTION_IRQ(0x6, 13)), /* EINT13 */ }; -- cgit 1.4.1 From 9911a2d5e9d14e39692b751929a92cb5a1d9d0e0 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Wed, 23 Sep 2015 16:35:09 +0200 Subject: pinctrl: imx25: ensure that a pin with id i is at position i in the info array MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The code in pinctrl-imx.c only works correctly if in the imx_pinctrl_soc_info passed to imx_pinctrl_probe we have: info->pins[i].number = i conf_reg(info->pins[i]) = 4 * i (which conf_reg(pin) being the offset of the pin's configuration register). When the imx25 specific part was introduced in b4a87c9b966f ("pinctrl: pinctrl-imx: add imx25 pinctrl driver") we had: info->pins[i].number = i + 1 conf_reg(info->pins[i]) = 4 * i . Commit 34027ca2bbc6 ("pinctrl: imx25: fix numbering for pins") tried to fix that but made the situation: info->pins[i-1].number = i conf_reg(info->pins[i-1]) = 4 * i which is hardly better but fixed the error seen back then. So insert another reserved entry in the array to finally yield: info->pins[i].number = i conf_reg(info->pins[i]) = 4 * i Fixes: 34027ca2bbc6 ("pinctrl: imx25: fix numbering for pins") Signed-off-by: Uwe Kleine-König Signed-off-by: Linus Walleij --- drivers/pinctrl/freescale/pinctrl-imx25.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/pinctrl/freescale/pinctrl-imx25.c b/drivers/pinctrl/freescale/pinctrl-imx25.c index faf635654312..293ed4381cc0 100644 --- a/drivers/pinctrl/freescale/pinctrl-imx25.c +++ b/drivers/pinctrl/freescale/pinctrl-imx25.c @@ -26,7 +26,8 @@ #include "pinctrl-imx.h" enum imx25_pads { - MX25_PAD_RESERVE0 = 1, + MX25_PAD_RESERVE0 = 0, + MX25_PAD_RESERVE1 = 1, MX25_PAD_A10 = 2, MX25_PAD_A13 = 3, MX25_PAD_A14 = 4, @@ -169,6 +170,7 @@ enum imx25_pads { /* Pad names for the pinmux subsystem */ static const struct pinctrl_pin_desc imx25_pinctrl_pads[] = { IMX_PINCTRL_PIN(MX25_PAD_RESERVE0), + IMX_PINCTRL_PIN(MX25_PAD_RESERVE1), IMX_PINCTRL_PIN(MX25_PAD_A10), IMX_PINCTRL_PIN(MX25_PAD_A13), IMX_PINCTRL_PIN(MX25_PAD_A14), -- cgit 1.4.1 From de7f8e3e6b1bb6e3e400bf675e4052fa3d927987 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 24 Sep 2015 21:26:46 +0900 Subject: pinctrl: uniphier: fix input enable settings for PH1-sLD8 Currently, input enable settings are missing from the PH1-sLD8 pinctrl driver. (All the entries in the pin table are set to UNIPHIER_PIN_IECTRL_NONE). Fill the table with correct values. Fixes: 95372f9dc892 ("pinctrl: UniPhier: add UniPhier PH1-sLD8 pinctrl driver") Signed-off-by: Masahiro Yamada Signed-off-by: Linus Walleij --- drivers/pinctrl/uniphier/pinctrl-ph1-sld8.c | 226 ++++++++++++++-------------- 1 file changed, 113 insertions(+), 113 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/uniphier/pinctrl-ph1-sld8.c b/drivers/pinctrl/uniphier/pinctrl-ph1-sld8.c index 7e9dae54fcb2..2df8bbecebfc 100644 --- a/drivers/pinctrl/uniphier/pinctrl-ph1-sld8.c +++ b/drivers/pinctrl/uniphier/pinctrl-ph1-sld8.c @@ -22,49 +22,49 @@ #define DRIVER_NAME "ph1-sld8-pinctrl" static const struct pinctrl_pin_desc ph1_sld8_pins[] = { - UNIPHIER_PINCTRL_PIN(0, "PCA00", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(0, "PCA00", 0, 15, UNIPHIER_PIN_DRV_4_8, 15, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(1, "PCA01", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(1, "PCA01", 0, 16, UNIPHIER_PIN_DRV_4_8, 16, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(2, "PCA02", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(2, "PCA02", 0, 17, UNIPHIER_PIN_DRV_4_8, 17, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(3, "PCA03", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(3, "PCA03", 0, 18, UNIPHIER_PIN_DRV_4_8, 18, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(4, "PCA04", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(4, "PCA04", 0, 19, UNIPHIER_PIN_DRV_4_8, 19, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(5, "PCA05", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(5, "PCA05", 0, 20, UNIPHIER_PIN_DRV_4_8, 20, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(6, "PCA06", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(6, "PCA06", 0, 21, UNIPHIER_PIN_DRV_4_8, 21, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(7, "PCA07", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(7, "PCA07", 0, 22, UNIPHIER_PIN_DRV_4_8, 22, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(8, "PCA08", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(8, "PCA08", 0, 23, UNIPHIER_PIN_DRV_4_8, 23, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(9, "PCA09", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(9, "PCA09", 0, 24, UNIPHIER_PIN_DRV_4_8, 24, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(10, "PCA10", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(10, "PCA10", 0, 25, UNIPHIER_PIN_DRV_4_8, 25, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(11, "PCA11", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(11, "PCA11", 0, 26, UNIPHIER_PIN_DRV_4_8, 26, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(12, "PCA12", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(12, "PCA12", 0, 27, UNIPHIER_PIN_DRV_4_8, 27, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(13, "PCA13", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(13, "PCA13", 0, 28, UNIPHIER_PIN_DRV_4_8, 28, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(14, "PCA14", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(14, "PCA14", 0, 29, UNIPHIER_PIN_DRV_4_8, 29, UNIPHIER_PIN_PULL_DOWN), UNIPHIER_PINCTRL_PIN(15, "XNFRE_GB", UNIPHIER_PIN_IECTRL_NONE, @@ -118,199 +118,199 @@ static const struct pinctrl_pin_desc ph1_sld8_pins[] = { UNIPHIER_PINCTRL_PIN(31, "NFD7_GB", UNIPHIER_PIN_IECTRL_NONE, 36, UNIPHIER_PIN_DRV_8_12_16_20, 128, UNIPHIER_PIN_PULL_UP), - UNIPHIER_PINCTRL_PIN(32, "SDCLK", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(32, "SDCLK", 8, 40, UNIPHIER_PIN_DRV_8_12_16_20, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(33, "SDCMD", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(33, "SDCMD", 8, 44, UNIPHIER_PIN_DRV_8_12_16_20, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(34, "SDDAT0", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(34, "SDDAT0", 8, 48, UNIPHIER_PIN_DRV_8_12_16_20, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(35, "SDDAT1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(35, "SDDAT1", 8, 52, UNIPHIER_PIN_DRV_8_12_16_20, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(36, "SDDAT2", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(36, "SDDAT2", 8, 56, UNIPHIER_PIN_DRV_8_12_16_20, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(37, "SDDAT3", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(37, "SDDAT3", 8, 60, UNIPHIER_PIN_DRV_8_12_16_20, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(38, "SDCD", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(38, "SDCD", 8, -1, UNIPHIER_PIN_DRV_FIXED_4, 129, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(39, "SDWP", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(39, "SDWP", 8, -1, UNIPHIER_PIN_DRV_FIXED_4, 130, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(40, "SDVOLC", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(40, "SDVOLC", 9, -1, UNIPHIER_PIN_DRV_FIXED_4, 131, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(41, "USB0VBUS", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(41, "USB0VBUS", 0, 37, UNIPHIER_PIN_DRV_4_8, 37, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(42, "USB0OD", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(42, "USB0OD", 0, 38, UNIPHIER_PIN_DRV_4_8, 38, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(43, "USB1VBUS", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(43, "USB1VBUS", 0, 39, UNIPHIER_PIN_DRV_4_8, 39, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(44, "USB1OD", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(44, "USB1OD", 0, 40, UNIPHIER_PIN_DRV_4_8, 40, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(45, "PCRESET", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(45, "PCRESET", 0, 41, UNIPHIER_PIN_DRV_4_8, 41, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(46, "PCREG", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(46, "PCREG", 0, 42, UNIPHIER_PIN_DRV_4_8, 42, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(47, "PCCE2", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(47, "PCCE2", 0, 43, UNIPHIER_PIN_DRV_4_8, 43, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(48, "PCVS1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(48, "PCVS1", 0, 44, UNIPHIER_PIN_DRV_4_8, 44, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(49, "PCCD2", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(49, "PCCD2", 0, 45, UNIPHIER_PIN_DRV_4_8, 45, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(50, "PCCD1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(50, "PCCD1", 0, 46, UNIPHIER_PIN_DRV_4_8, 46, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(51, "PCREADY", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(51, "PCREADY", 0, 47, UNIPHIER_PIN_DRV_4_8, 47, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(52, "PCDOE", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(52, "PCDOE", 0, 48, UNIPHIER_PIN_DRV_4_8, 48, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(53, "PCCE1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(53, "PCCE1", 0, 49, UNIPHIER_PIN_DRV_4_8, 49, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(54, "PCWE", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(54, "PCWE", 0, 50, UNIPHIER_PIN_DRV_4_8, 50, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(55, "PCOE", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(55, "PCOE", 0, 51, UNIPHIER_PIN_DRV_4_8, 51, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(56, "PCWAIT", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(56, "PCWAIT", 0, 52, UNIPHIER_PIN_DRV_4_8, 52, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(57, "PCIOWR", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(57, "PCIOWR", 0, 53, UNIPHIER_PIN_DRV_4_8, 53, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(58, "PCIORD", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(58, "PCIORD", 0, 54, UNIPHIER_PIN_DRV_4_8, 54, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(59, "HS0DIN0", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(59, "HS0DIN0", 0, 55, UNIPHIER_PIN_DRV_4_8, 55, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(60, "HS0DIN1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(60, "HS0DIN1", 0, 56, UNIPHIER_PIN_DRV_4_8, 56, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(61, "HS0DIN2", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(61, "HS0DIN2", 0, 57, UNIPHIER_PIN_DRV_4_8, 57, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(62, "HS0DIN3", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(62, "HS0DIN3", 0, 58, UNIPHIER_PIN_DRV_4_8, 58, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(63, "HS0DIN4", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(63, "HS0DIN4", 0, 59, UNIPHIER_PIN_DRV_4_8, 59, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(64, "HS0DIN5", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(64, "HS0DIN5", 0, 60, UNIPHIER_PIN_DRV_4_8, 60, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(65, "HS0DIN6", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(65, "HS0DIN6", 0, 61, UNIPHIER_PIN_DRV_4_8, 61, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(66, "HS0DIN7", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(66, "HS0DIN7", 0, 62, UNIPHIER_PIN_DRV_4_8, 62, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(67, "HS0BCLKIN", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(67, "HS0BCLKIN", 0, 63, UNIPHIER_PIN_DRV_4_8, 63, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(68, "HS0VALIN", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(68, "HS0VALIN", 0, 64, UNIPHIER_PIN_DRV_4_8, 64, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(69, "HS0SYNCIN", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(69, "HS0SYNCIN", 0, 65, UNIPHIER_PIN_DRV_4_8, 65, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(70, "HSDOUT0", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(70, "HSDOUT0", 0, 66, UNIPHIER_PIN_DRV_4_8, 66, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(71, "HSDOUT1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(71, "HSDOUT1", 0, 67, UNIPHIER_PIN_DRV_4_8, 67, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(72, "HSDOUT2", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(72, "HSDOUT2", 0, 68, UNIPHIER_PIN_DRV_4_8, 68, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(73, "HSDOUT3", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(73, "HSDOUT3", 0, 69, UNIPHIER_PIN_DRV_4_8, 69, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(74, "HSDOUT4", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(74, "HSDOUT4", 0, 70, UNIPHIER_PIN_DRV_4_8, 70, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(75, "HSDOUT5", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(75, "HSDOUT5", 0, 71, UNIPHIER_PIN_DRV_4_8, 71, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(76, "HSDOUT6", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(76, "HSDOUT6", 0, 72, UNIPHIER_PIN_DRV_4_8, 72, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(77, "HSDOUT7", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(77, "HSDOUT7", 0, 73, UNIPHIER_PIN_DRV_4_8, 73, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(78, "HSBCLKOUT", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(78, "HSBCLKOUT", 0, 74, UNIPHIER_PIN_DRV_4_8, 74, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(79, "HSVALOUT", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(79, "HSVALOUT", 0, 75, UNIPHIER_PIN_DRV_4_8, 75, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(80, "HSSYNCOUT", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(80, "HSSYNCOUT", 0, 76, UNIPHIER_PIN_DRV_4_8, 76, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(81, "HS1DIN0", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(81, "HS1DIN0", 0, 77, UNIPHIER_PIN_DRV_4_8, 77, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(82, "HS1DIN1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(82, "HS1DIN1", 0, 78, UNIPHIER_PIN_DRV_4_8, 78, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(83, "HS1DIN2", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(83, "HS1DIN2", 0, 79, UNIPHIER_PIN_DRV_4_8, 79, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(84, "HS1DIN3", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(84, "HS1DIN3", 0, 80, UNIPHIER_PIN_DRV_4_8, 80, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(85, "HS1DIN4", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(85, "HS1DIN4", 0, 81, UNIPHIER_PIN_DRV_4_8, 81, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(86, "HS1DIN5", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(86, "HS1DIN5", 0, 82, UNIPHIER_PIN_DRV_4_8, 82, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(87, "HS1DIN6", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(87, "HS1DIN6", 0, 83, UNIPHIER_PIN_DRV_4_8, 83, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(88, "HS1DIN7", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(88, "HS1DIN7", 0, 84, UNIPHIER_PIN_DRV_4_8, 84, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(89, "HS1BCLKIN", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(89, "HS1BCLKIN", 0, 85, UNIPHIER_PIN_DRV_4_8, 85, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(90, "HS1VALIN", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(90, "HS1VALIN", 0, 86, UNIPHIER_PIN_DRV_4_8, 86, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(91, "HS1SYNCIN", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(91, "HS1SYNCIN", 0, 87, UNIPHIER_PIN_DRV_4_8, 87, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(92, "AGCI", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(92, "AGCI", 3, -1, UNIPHIER_PIN_DRV_FIXED_4, 132, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(93, "AGCR", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(93, "AGCR", 4, -1, UNIPHIER_PIN_DRV_FIXED_4, 133, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(94, "AGCBS", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(94, "AGCBS", 5, -1, UNIPHIER_PIN_DRV_FIXED_4, 134, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(95, "IECOUT", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(95, "IECOUT", 0, 88, UNIPHIER_PIN_DRV_4_8, 88, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(96, "ASMCK", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(96, "ASMCK", 0, 89, UNIPHIER_PIN_DRV_4_8, 89, UNIPHIER_PIN_PULL_DOWN), UNIPHIER_PINCTRL_PIN(97, "ABCKO", UNIPHIER_PIN_IECTRL_NONE, @@ -325,31 +325,31 @@ static const struct pinctrl_pin_desc ph1_sld8_pins[] = { UNIPHIER_PINCTRL_PIN(100, "ASDOUT1", UNIPHIER_PIN_IECTRL_NONE, 93, UNIPHIER_PIN_DRV_4_8, 93, UNIPHIER_PIN_PULL_UP), - UNIPHIER_PINCTRL_PIN(101, "ARCOUT", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(101, "ARCOUT", 0, 94, UNIPHIER_PIN_DRV_4_8, 94, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(102, "SDA0", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(102, "SDA0", 10, -1, UNIPHIER_PIN_DRV_FIXED_4, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(103, "SCL0", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(103, "SCL0", 10, -1, UNIPHIER_PIN_DRV_FIXED_4, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(104, "SDA1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(104, "SDA1", 11, -1, UNIPHIER_PIN_DRV_FIXED_4, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(105, "SCL1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(105, "SCL1", 11, -1, UNIPHIER_PIN_DRV_FIXED_4, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(106, "DMDSDA0", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(106, "DMDSDA0", 12, -1, UNIPHIER_PIN_DRV_FIXED_4, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(107, "DMDSCL0", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(107, "DMDSCL0", 12, -1, UNIPHIER_PIN_DRV_FIXED_4, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(108, "DMDSDA1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(108, "DMDSDA1", 13, -1, UNIPHIER_PIN_DRV_FIXED_4, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(109, "DMDSCL1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(109, "DMDSCL1", 13, -1, UNIPHIER_PIN_DRV_FIXED_4, -1, UNIPHIER_PIN_PULL_NONE), UNIPHIER_PINCTRL_PIN(110, "SBO0", UNIPHIER_PIN_IECTRL_NONE, @@ -358,76 +358,76 @@ static const struct pinctrl_pin_desc ph1_sld8_pins[] = { UNIPHIER_PINCTRL_PIN(111, "SBI0", UNIPHIER_PIN_IECTRL_NONE, 96, UNIPHIER_PIN_DRV_4_8, 96, UNIPHIER_PIN_PULL_UP), - UNIPHIER_PINCTRL_PIN(112, "SBO1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(112, "SBO1", 0, 97, UNIPHIER_PIN_DRV_4_8, 97, UNIPHIER_PIN_PULL_UP), - UNIPHIER_PINCTRL_PIN(113, "SBI1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(113, "SBI1", 0, 98, UNIPHIER_PIN_DRV_4_8, 98, UNIPHIER_PIN_PULL_UP), - UNIPHIER_PINCTRL_PIN(114, "TXD1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(114, "TXD1", 0, 99, UNIPHIER_PIN_DRV_4_8, 99, UNIPHIER_PIN_PULL_UP), - UNIPHIER_PINCTRL_PIN(115, "RXD1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(115, "RXD1", 0, 100, UNIPHIER_PIN_DRV_4_8, 100, UNIPHIER_PIN_PULL_UP), - UNIPHIER_PINCTRL_PIN(116, "HIN", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(116, "HIN", 1, -1, UNIPHIER_PIN_DRV_FIXED_5, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(117, "VIN", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(117, "VIN", 2, -1, UNIPHIER_PIN_DRV_FIXED_5, -1, UNIPHIER_PIN_PULL_NONE), - UNIPHIER_PINCTRL_PIN(118, "TCON0", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(118, "TCON0", 0, 101, UNIPHIER_PIN_DRV_4_8, 101, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(119, "TCON1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(119, "TCON1", 0, 102, UNIPHIER_PIN_DRV_4_8, 102, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(120, "TCON2", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(120, "TCON2", 0, 103, UNIPHIER_PIN_DRV_4_8, 103, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(121, "TCON3", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(121, "TCON3", 0, 104, UNIPHIER_PIN_DRV_4_8, 104, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(122, "TCON4", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(122, "TCON4", 0, 105, UNIPHIER_PIN_DRV_4_8, 105, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(123, "TCON5", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(123, "TCON5", 0, 106, UNIPHIER_PIN_DRV_4_8, 106, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(124, "TCON6", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(124, "TCON6", 0, 107, UNIPHIER_PIN_DRV_4_8, 107, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(125, "TCON7", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(125, "TCON7", 0, 108, UNIPHIER_PIN_DRV_4_8, 108, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(126, "TCON8", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(126, "TCON8", 0, 109, UNIPHIER_PIN_DRV_4_8, 109, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(127, "PWMA", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(127, "PWMA", 0, 110, UNIPHIER_PIN_DRV_4_8, 110, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(128, "XIRQ0", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(128, "XIRQ0", 0, 111, UNIPHIER_PIN_DRV_4_8, 111, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(129, "XIRQ1", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(129, "XIRQ1", 0, 112, UNIPHIER_PIN_DRV_4_8, 112, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(130, "XIRQ2", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(130, "XIRQ2", 0, 113, UNIPHIER_PIN_DRV_4_8, 113, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(131, "XIRQ3", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(131, "XIRQ3", 0, 114, UNIPHIER_PIN_DRV_4_8, 114, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(132, "XIRQ4", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(132, "XIRQ4", 0, 115, UNIPHIER_PIN_DRV_4_8, 115, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(133, "XIRQ5", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(133, "XIRQ5", 0, 116, UNIPHIER_PIN_DRV_4_8, 116, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(134, "XIRQ6", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(134, "XIRQ6", 0, 117, UNIPHIER_PIN_DRV_4_8, 117, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(135, "XIRQ7", UNIPHIER_PIN_IECTRL_NONE, + UNIPHIER_PINCTRL_PIN(135, "XIRQ7", 0, 118, UNIPHIER_PIN_DRV_4_8, 118, UNIPHIER_PIN_PULL_DOWN), }; -- cgit 1.4.1 From 042745ee53a0a7c1f5aff191a4a24213c6dcfb52 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Fri, 2 Oct 2015 11:17:37 -0400 Subject: dm raid: fix round up of default region size Commit 3a0f9aaee028 ("dm raid: round region_size to power of two") intended to make sure that the default region size is a power of two. However, the logic in that commit is incorrect and sets the variable region_size to 0 or 1, depending on whether min_region_size is a power of two. Fix this logic, using roundup_pow_of_two(), so that region_size is properly rounded up to the next power of two. Signed-off-by: Mikulas Patocka Fixes: 3a0f9aaee028 ("dm raid: round region_size to power of two") Cc: stable@vger.kernel.org # v3.8+ Signed-off-by: Mike Snitzer --- drivers/md/dm-raid.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 97e165183e79..a0901214aef5 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -329,8 +329,7 @@ static int validate_region_size(struct raid_set *rs, unsigned long region_size) */ if (min_region_size > (1 << 13)) { /* If not a power of 2, make it the next power of 2 */ - if (min_region_size & (min_region_size - 1)) - region_size = 1 << fls(region_size); + region_size = roundup_pow_of_two(min_region_size); DMINFO("Choosing default region size of %lu sectors", region_size); } else { -- cgit 1.4.1 From 51a4726b04e880fdd9b4e0e58b13f70b0a68a7f5 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 30 Sep 2015 16:45:52 -0400 Subject: drm/radeon: add pm sysfs files late They were added relatively early in the driver init process which meant that in some cases the driver was not finished initializing before external tools tried to use them which could result in a crash depending on the timing. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_display.c | 14 ++------ drivers/gpu/drm/radeon/radeon_pm.c | 63 ++++++++++++++++++++------------- 2 files changed, 40 insertions(+), 37 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index d2e9e9efc159..6743174acdbc 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -1633,18 +1633,8 @@ int radeon_modeset_init(struct radeon_device *rdev) radeon_fbdev_init(rdev); drm_kms_helper_poll_init(rdev->ddev); - if (rdev->pm.dpm_enabled) { - /* do dpm late init */ - ret = radeon_pm_late_init(rdev); - if (ret) { - rdev->pm.dpm_enabled = false; - DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n"); - } - /* set the dpm state for PX since there won't be - * a modeset to call this. - */ - radeon_pm_compute_clocks(rdev); - } + /* do pm late init */ + ret = radeon_pm_late_init(rdev); return 0; } diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 05751f3f8444..44489cce7458 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -1326,14 +1326,6 @@ static int radeon_pm_init_old(struct radeon_device *rdev) INIT_DELAYED_WORK(&rdev->pm.dynpm_idle_work, radeon_dynpm_idle_work_handler); if (rdev->pm.num_power_states > 1) { - /* where's the best place to put these? */ - ret = device_create_file(rdev->dev, &dev_attr_power_profile); - if (ret) - DRM_ERROR("failed to create device file for power profile\n"); - ret = device_create_file(rdev->dev, &dev_attr_power_method); - if (ret) - DRM_ERROR("failed to create device file for power method\n"); - if (radeon_debugfs_pm_init(rdev)) { DRM_ERROR("Failed to register debugfs file for PM!\n"); } @@ -1391,20 +1383,6 @@ static int radeon_pm_init_dpm(struct radeon_device *rdev) goto dpm_failed; rdev->pm.dpm_enabled = true; - ret = device_create_file(rdev->dev, &dev_attr_power_dpm_state); - if (ret) - DRM_ERROR("failed to create device file for dpm state\n"); - ret = device_create_file(rdev->dev, &dev_attr_power_dpm_force_performance_level); - if (ret) - DRM_ERROR("failed to create device file for dpm state\n"); - /* XXX: these are noops for dpm but are here for backwards compat */ - ret = device_create_file(rdev->dev, &dev_attr_power_profile); - if (ret) - DRM_ERROR("failed to create device file for power profile\n"); - ret = device_create_file(rdev->dev, &dev_attr_power_method); - if (ret) - DRM_ERROR("failed to create device file for power method\n"); - if (radeon_debugfs_pm_init(rdev)) { DRM_ERROR("Failed to register debugfs file for dpm!\n"); } @@ -1545,9 +1523,44 @@ int radeon_pm_late_init(struct radeon_device *rdev) int ret = 0; if (rdev->pm.pm_method == PM_METHOD_DPM) { - mutex_lock(&rdev->pm.mutex); - ret = radeon_dpm_late_enable(rdev); - mutex_unlock(&rdev->pm.mutex); + if (rdev->pm.dpm_enabled) { + ret = device_create_file(rdev->dev, &dev_attr_power_dpm_state); + if (ret) + DRM_ERROR("failed to create device file for dpm state\n"); + ret = device_create_file(rdev->dev, &dev_attr_power_dpm_force_performance_level); + if (ret) + DRM_ERROR("failed to create device file for dpm state\n"); + /* XXX: these are noops for dpm but are here for backwards compat */ + ret = device_create_file(rdev->dev, &dev_attr_power_profile); + if (ret) + DRM_ERROR("failed to create device file for power profile\n"); + ret = device_create_file(rdev->dev, &dev_attr_power_method); + if (ret) + DRM_ERROR("failed to create device file for power method\n"); + + mutex_lock(&rdev->pm.mutex); + ret = radeon_dpm_late_enable(rdev); + mutex_unlock(&rdev->pm.mutex); + if (ret) { + rdev->pm.dpm_enabled = false; + DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n"); + } else { + /* set the dpm state for PX since there won't be + * a modeset to call this. + */ + radeon_pm_compute_clocks(rdev); + } + } + } else { + if (rdev->pm.num_power_states > 1) { + /* where's the best place to put these? */ + ret = device_create_file(rdev->dev, &dev_attr_power_profile); + if (ret) + DRM_ERROR("failed to create device file for power profile\n"); + ret = device_create_file(rdev->dev, &dev_attr_power_method); + if (ret) + DRM_ERROR("failed to create device file for power method\n"); + } } return ret; } -- cgit 1.4.1 From fa022a9b65d2886486a022fd66b20c823cd76ad9 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 30 Sep 2015 17:05:40 -0400 Subject: drm/amdgpu: add pm sysfs files late They were added relatively early in the driver init process which meant that in some cases the driver was not finished initializing before external tools tried to use them which could result in a crash depending on the timing. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/ci_dpm.c | 8 +++++--- drivers/gpu/drm/amd/amdgpu/cz_dpm.c | 10 ++++++---- drivers/gpu/drm/amd/amdgpu/kv_dpm.c | 9 ++++++--- 3 files changed, 17 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c index 82e8d0730517..a1a35a5df8e7 100644 --- a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c @@ -6185,6 +6185,11 @@ static int ci_dpm_late_init(void *handle) if (!amdgpu_dpm) return 0; + /* init the sysfs and debugfs files late */ + ret = amdgpu_pm_sysfs_init(adev); + if (ret) + return ret; + ret = ci_set_temperature_range(adev); if (ret) return ret; @@ -6232,9 +6237,6 @@ static int ci_dpm_sw_init(void *handle) adev->pm.dpm.current_ps = adev->pm.dpm.requested_ps = adev->pm.dpm.boot_ps; if (amdgpu_dpm == 1) amdgpu_pm_print_power_states(adev); - ret = amdgpu_pm_sysfs_init(adev); - if (ret) - goto dpm_failed; mutex_unlock(&adev->pm.mutex); DRM_INFO("amdgpu: dpm initialized\n"); diff --git a/drivers/gpu/drm/amd/amdgpu/cz_dpm.c b/drivers/gpu/drm/amd/amdgpu/cz_dpm.c index 44fa96ad4709..2e3373ed4c94 100644 --- a/drivers/gpu/drm/amd/amdgpu/cz_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/cz_dpm.c @@ -596,6 +596,12 @@ static int cz_dpm_late_init(void *handle) struct amdgpu_device *adev = (struct amdgpu_device *)handle; if (amdgpu_dpm) { + int ret; + /* init the sysfs and debugfs files late */ + ret = amdgpu_pm_sysfs_init(adev); + if (ret) + return ret; + /* powerdown unused blocks for now */ cz_dpm_powergate_uvd(adev, true); cz_dpm_powergate_vce(adev, true); @@ -632,10 +638,6 @@ static int cz_dpm_sw_init(void *handle) if (amdgpu_dpm == 1) amdgpu_pm_print_power_states(adev); - ret = amdgpu_pm_sysfs_init(adev); - if (ret) - goto dpm_init_failed; - mutex_unlock(&adev->pm.mutex); DRM_INFO("amdgpu: dpm initialized\n"); diff --git a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c index 94ec04a9c4d5..9745ed3a9aef 100644 --- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c @@ -2995,6 +2995,12 @@ static int kv_dpm_late_init(void *handle) { /* powerdown unused blocks for now */ struct amdgpu_device *adev = (struct amdgpu_device *)handle; + int ret; + + /* init the sysfs and debugfs files late */ + ret = amdgpu_pm_sysfs_init(adev); + if (ret) + return ret; kv_dpm_powergate_acp(adev, true); kv_dpm_powergate_samu(adev, true); @@ -3038,9 +3044,6 @@ static int kv_dpm_sw_init(void *handle) adev->pm.dpm.current_ps = adev->pm.dpm.requested_ps = adev->pm.dpm.boot_ps; if (amdgpu_dpm == 1) amdgpu_pm_print_power_states(adev); - ret = amdgpu_pm_sysfs_init(adev); - if (ret) - goto dpm_failed; mutex_unlock(&adev->pm.mutex); DRM_INFO("amdgpu: dpm initialized\n"); -- cgit 1.4.1 From 2b02ec79004388a8c65e227bc289ed891b5ac8c6 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 2 Oct 2015 16:12:07 -0400 Subject: drm/radeon: add quirk for ASUS R7 370 Bug: https://bugs.freedesktop.org/show_bug.cgi?id=92260 Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/si_dpm.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index e9115d3f67b0..e72bf46042e0 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -2928,6 +2928,7 @@ static struct si_dpm_quirk si_dpm_quirk_list[] = { { PCI_VENDOR_ID_ATI, 0x6811, 0x174b, 0xe271, 0, 120000 }, { PCI_VENDOR_ID_ATI, 0x6810, 0x174b, 0xe271, 85000, 90000 }, { PCI_VENDOR_ID_ATI, 0x6811, 0x1762, 0x2015, 0, 120000 }, + { PCI_VENDOR_ID_ATI, 0x6811, 0x1043, 0x2015, 0, 120000 }, { 0, 0, 0, 0 }, }; -- cgit 1.4.1 From 8484bf2981b3d006426ac052a3642c9ce1d8d980 Mon Sep 17 00:00:00 2001 From: Yao-Wen Mao Date: Mon, 31 Aug 2015 14:24:09 +0800 Subject: USB: Add reset-resume quirk for two Plantronics usb headphones. These two headphones need a reset-resume quirk to properly resume to original volume level. Signed-off-by: Yao-Wen Mao Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index d85abfed84cc..41fe3ba528df 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -78,6 +78,12 @@ static const struct usb_device_id usb_quirk_list[] = { /* Philips PSC805 audio device */ { USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Plantronic Audio 655 DSP */ + { USB_DEVICE(0x047f, 0xc008), .driver_info = USB_QUIRK_RESET_RESUME }, + + /* Plantronic Audio 648 USB */ + { USB_DEVICE(0x047f, 0xc013), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Artisman Watchdog Dongle */ { USB_DEVICE(0x04b4, 0x0526), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, -- cgit 1.4.1 From 1d5c47f555c5ae050fad22e4a99f88856cae5d05 Mon Sep 17 00:00:00 2001 From: Alexander Inyukhin Date: Sat, 26 Sep 2015 15:24:21 +0300 Subject: USB: chaoskey read offset bug Rng reads in chaoskey driver could return the same data under the certain conditions. Signed-off-by: Alexander Inyukhin Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/chaoskey.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/misc/chaoskey.c b/drivers/usb/misc/chaoskey.c index 3ad5d19e4d04..23c794813e6a 100644 --- a/drivers/usb/misc/chaoskey.c +++ b/drivers/usb/misc/chaoskey.c @@ -472,7 +472,7 @@ static int chaoskey_rng_read(struct hwrng *rng, void *data, if (this_time > max) this_time = max; - memcpy(data, dev->buf, this_time); + memcpy(data, dev->buf + dev->used, this_time); dev->used += this_time; -- cgit 1.4.1 From 72194739f54607bbf8cfded159627a2015381557 Mon Sep 17 00:00:00 2001 From: Vincent Palatin Date: Thu, 1 Oct 2015 14:10:22 -0700 Subject: usb: Add device quirk for Logitech PTZ cameras Add a device quirk for the Logitech PTZ Pro Camera and its sibling the ConferenceCam CC3000e Camera. This fixes the failed camera enumeration on some boot, particularly on machines with fast CPU. Tested by connecting a Logitech PTZ Pro Camera to a machine with a Haswell Core i7-4600U CPU @ 2.10GHz, and doing thousands of reboot cycles while recording the kernel logs and taking camera picture after each boot. Before the patch, more than 7% of the boots show some enumeration transfer failures and in a few of them, the kernel is giving up before actually enumerating the webcam. After the patch, the enumeration has been correct on every reboot. Signed-off-by: Vincent Palatin Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 41fe3ba528df..f5a381945db2 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -54,6 +54,13 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT }, { USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT }, + /* Logitech ConferenceCam CC3000e */ + { USB_DEVICE(0x046d, 0x0847), .driver_info = USB_QUIRK_DELAY_INIT }, + { USB_DEVICE(0x046d, 0x0848), .driver_info = USB_QUIRK_DELAY_INIT }, + + /* Logitech PTZ Pro Camera */ + { USB_DEVICE(0x046d, 0x0853), .driver_info = USB_QUIRK_DELAY_INIT }, + /* Logitech Quickcam Fusion */ { USB_DEVICE(0x046d, 0x08c1), .driver_info = USB_QUIRK_RESET_RESUME }, -- cgit 1.4.1 From 7c806883e143dc60439e6bdb3589700ebed1efaa Mon Sep 17 00:00:00 2001 From: ZhengShunQian Date: Wed, 30 Sep 2015 13:33:56 +0100 Subject: nvmem: core: fix the out-of-range leak in read/write() The position to read/write must be less than max register size. Signed-off-by: ZhengShunQian Acked-by: Srinivas Kandagatla Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman --- drivers/nvmem/core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index d3c6676b3c0c..f4af8e5fcd94 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -67,7 +67,7 @@ static ssize_t bin_attr_nvmem_read(struct file *filp, struct kobject *kobj, int rc; /* Stop the user from reading */ - if (pos > nvmem->size) + if (pos >= nvmem->size) return 0; if (pos + count > nvmem->size) @@ -92,7 +92,7 @@ static ssize_t bin_attr_nvmem_write(struct file *filp, struct kobject *kobj, int rc; /* Stop the user from writing */ - if (pos > nvmem->size) + if (pos >= nvmem->size) return 0; if (pos + count > nvmem->size) -- cgit 1.4.1 From cbf854ab36870b931aeba4edd954015b7c3005a2 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 30 Sep 2015 13:35:15 +0100 Subject: nvmem: core: Handle shift bits in-place if cell->nbits is non-zero It's pointless to test (cell->bit_offset || cell->bit_offset). nvmem_shift_read_buffer_in_place() should be called when (cell->bit_offset || cell->nbits). Signed-off-by: Axel Lin Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman --- drivers/nvmem/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index f4af8e5fcd94..676607cb01bb 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -825,7 +825,7 @@ static int __nvmem_cell_read(struct nvmem_device *nvmem, return rc; /* shift bits in-place */ - if (cell->bit_offset || cell->bit_offset) + if (cell->bit_offset || cell->nbits) nvmem_shift_read_buffer_in_place(cell, buf); *len = cell->bytes; -- cgit 1.4.1 From ace22170655f61d82fff95e57d673bf847a32a03 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 30 Sep 2015 13:36:10 +0100 Subject: nvmem: core: Fix memory leak in nvmem_cell_write A tmp buffer is allocated if cell->bit_offset || cell->nbits. So the tmp buffer needs to be freed at the same condition to avoid leak. Signed-off-by: Axel Lin Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman --- drivers/nvmem/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index 676607cb01bb..6fd4e5a5ef4a 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -938,7 +938,7 @@ int nvmem_cell_write(struct nvmem_cell *cell, void *buf, size_t len) rc = regmap_raw_write(nvmem->regmap, cell->offset, buf, cell->bytes); /* free the tmp buffer */ - if (cell->bit_offset) + if (cell->bit_offset || cell->nbits) kfree(buf); if (IS_ERR_VALUE(rc)) -- cgit 1.4.1 From fb727077b04f768d0c79d9aa29e958262a9e3d9e Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Wed, 30 Sep 2015 13:36:31 +0100 Subject: nvmem: sunxi: Check for memory allocation failure The sunxi_sid driver doesn't check for kmalloc return status before derefencing the returned pointer, which could lead to a NULL pointer dereference if kmalloc failed. Check for its return code to make sure it deosn't happen. Reported-by: Dan Carpenter Signed-off-by: Maxime Ripard Signed-off-by: Greg Kroah-Hartman --- drivers/nvmem/sunxi_sid.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c index 14777dd5212d..cfa3b85064dd 100644 --- a/drivers/nvmem/sunxi_sid.c +++ b/drivers/nvmem/sunxi_sid.c @@ -103,7 +103,7 @@ static int sunxi_sid_probe(struct platform_device *pdev) struct nvmem_device *nvmem; struct regmap *regmap; struct sunxi_sid *sid; - int i, size; + int ret, i, size; char *randomness; sid = devm_kzalloc(dev, sizeof(*sid), GFP_KERNEL); @@ -131,6 +131,11 @@ static int sunxi_sid_probe(struct platform_device *pdev) return PTR_ERR(nvmem); randomness = kzalloc(sizeof(u8) * size, GFP_KERNEL); + if (!randomness) { + ret = -EINVAL; + goto err_unreg_nvmem; + } + for (i = 0; i < size; i++) randomness[i] = sunxi_sid_read_byte(sid, i); @@ -140,6 +145,10 @@ static int sunxi_sid_probe(struct platform_device *pdev) platform_set_drvdata(pdev, nvmem); return 0; + +err_unreg_nvmem: + nvmem_unregister(nvmem); + return ret; } static int sunxi_sid_remove(struct platform_device *pdev) -- cgit 1.4.1 From 84dfe03ae2112b817d5221575d59ba616dc0c3e2 Mon Sep 17 00:00:00 2001 From: Alexander Usyskin Date: Mon, 21 Sep 2015 11:45:32 +0300 Subject: mei: hbm: fix error in state check logic MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use || instead && in state check. The latter is bogus and leads to following warning: drivers/misc/mei/hbm.c:1212:46: warning: logical ‘and’ of mutually exclusive tests is always false [-Wlogical-op] Fixes: 70ef835c84b3 ("mei: support for dynamic clients") Reported-by: David Binderman Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/hbm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c index 8eec887c8f70..6d7c188fb65c 100644 --- a/drivers/misc/mei/hbm.c +++ b/drivers/misc/mei/hbm.c @@ -1209,7 +1209,7 @@ int mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr) * after the host receives the enum_resp * message clients may be added or removed */ - if (dev->hbm_state <= MEI_HBM_ENUM_CLIENTS && + if (dev->hbm_state <= MEI_HBM_ENUM_CLIENTS || dev->hbm_state >= MEI_HBM_STOPPED) { dev_err(dev->dev, "hbm: add client: state mismatch, [%d, %d]\n", dev->dev_state, dev->hbm_state); -- cgit 1.4.1 From 0c727a42043f79db210cdde0366f9137b9c6bf5a Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 18 Aug 2015 12:43:12 -0300 Subject: Revert "serial: imx: remove unbalanced clk_prepare" This reverts commit 9e7b399d6528eac33a6fbfceb2b92af209c3454d. Commit ("9e7b399d6528ea") causes the following warning and sometimes also hangs the system: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 0 at kernel/locking/mutex.c:868 mutex_trylock+0x20c/0x22c() DEBUG_LOCKS_WARN_ON(in_interrupt()) Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.2.0-rc7-next-20150818-00001-g14418a6 #4 Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) Backtrace: [<80012f08>] (dump_backtrace) from [<800130a4>] (show_stack+0x18/0x1c) r6:00000364 r5:00000000 r4:00000000 r3:00000000 [<8001308c>] (show_stack) from [<807902b8>] (dump_stack+0x88/0xa4) [<80790230>] (dump_stack) from [<8002a604>] (warn_slowpath_common+0x80/0xbc) r5:807945c4 r4:80ab3b50 [<8002a584>] (warn_slowpath_common) from [<8002a6e4>] (warn_slowpath_fmt+0x38/0x40) r8:00000000 r7:8131100c r6:8054c3cc r5:8131300c r4:80b0a570 [<8002a6b0>] (warn_slowpath_fmt) from [<807945c4>] (mutex_trylock+0x20c/0x22c) r3:8095d0d8 r2:8095ab28 [<807943b8>] (mutex_trylock) from [<8054c3cc>] (clk_prepare_lock+0x14/0xf4) r7:8131100c r6:be3f0c80 r5:00000037 r4:be3f0c80 [<8054c3b8>] (clk_prepare_lock) from [<8054dbfc>] (clk_prepare+0x18/0x30) r5:00000037 r4:be3f0c80 [<8054dbe4>] (clk_prepare) from [<8036a600>] (imx_console_write+0x30/0x244) r4:812d0bc8 r3:8132b9a4 To reproduce the problem we only need to let the board idle for something like 30 seconds. Tested on a imx6q-sabresd. Signed-off-by: Fabio Estevam Reviewed-by: Eduardo Valentin Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/imx.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index fe3d41cc8416..d0388a071ba1 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1631,12 +1631,12 @@ imx_console_write(struct console *co, const char *s, unsigned int count) int locked = 1; int retval; - retval = clk_prepare_enable(sport->clk_per); + retval = clk_enable(sport->clk_per); if (retval) return; - retval = clk_prepare_enable(sport->clk_ipg); + retval = clk_enable(sport->clk_ipg); if (retval) { - clk_disable_unprepare(sport->clk_per); + clk_disable(sport->clk_per); return; } @@ -1675,8 +1675,8 @@ imx_console_write(struct console *co, const char *s, unsigned int count) if (locked) spin_unlock_irqrestore(&sport->port.lock, flags); - clk_disable_unprepare(sport->clk_ipg); - clk_disable_unprepare(sport->clk_per); + clk_disable(sport->clk_ipg); + clk_disable(sport->clk_per); } /* @@ -1777,7 +1777,15 @@ imx_console_setup(struct console *co, char *options) retval = uart_set_options(&sport->port, co, baud, parity, bits, flow); - clk_disable_unprepare(sport->clk_ipg); + clk_disable(sport->clk_ipg); + if (retval) { + clk_unprepare(sport->clk_ipg); + goto error_console; + } + + retval = clk_prepare(sport->clk_per); + if (retval) + clk_disable_unprepare(sport->clk_ipg); error_console: return retval; -- cgit 1.4.1 From c1a752ba2d6b8a52879c7ab637cff38359ea9827 Mon Sep 17 00:00:00 2001 From: Leon Yu Date: Mon, 7 Sep 2015 13:08:37 +0000 Subject: tty: don't leak cdev in tty_cdev_add() Commit a3a10ce3429e ("Avoid usb reset crashes by making tty_io cdevs truly dynamic") which mixes using cdev_alloc() and cdev_init() is problematic. Subsequent call to cdev_init() after cdev_alloc() sets kobj release method from cdev_dynamic_release() to cdev_default_release() and thus makes it impossible to free allocated cdev. This patch also consolidates error path of cdev_add() as cdev can also leak here if things went wrong. Signed-off-by: Leon Yu Fixes: a3a10ce3429e ("Avoid usb reset crashes by making tty_io cdevs truly dynamic") Acked-by: Richard Watts Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_io.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 02785d844354..17b027242734 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -3151,13 +3151,18 @@ struct class *tty_class; static int tty_cdev_add(struct tty_driver *driver, dev_t dev, unsigned int index, unsigned int count) { + int err; + /* init here, since reused cdevs cause crashes */ driver->cdevs[index] = cdev_alloc(); if (!driver->cdevs[index]) return -ENOMEM; - cdev_init(driver->cdevs[index], &tty_fops); + driver->cdevs[index]->ops = &tty_fops; driver->cdevs[index]->owner = driver->owner; - return cdev_add(driver->cdevs[index], dev, count); + err = cdev_add(driver->cdevs[index], dev, count); + if (err) + kobject_put(&driver->cdevs[index]->kobj); + return err; } /** -- cgit 1.4.1 From 8f1bd8f2ad2358d6a88c115481ff3e69817d1bde Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Wed, 23 Sep 2015 08:57:40 +0200 Subject: serial: atmel: fix error path of probe function MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If atmel_init_gpios fails the port has already been marked as busy (in line 2629), so this must be undone in the error path. This bug was introduced because I created the patch that finally became 722ccf416ac2 ("serial: atmel: fix error handling when mctrl_gpio_init fails") on top of 3.19 which didn't have commit 6fbb9bdf0f3f ("tty/serial: at91: fix error handling in atmel_serial_probe()") yet. Signed-off-by: Uwe Kleine-König Fixes: 722ccf416ac2 ("serial: atmel: fix error handling when mctrl_gpio_init fails") Acked-by: Nicolas Ferre Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/atmel_serial.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 5ca5cf3e9359..538ea03bc101 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -2786,7 +2786,7 @@ static int atmel_serial_probe(struct platform_device *pdev) ret = atmel_init_gpios(port, &pdev->dev); if (ret < 0) { dev_err(&pdev->dev, "Failed to initialize GPIOs."); - goto err; + goto err_clear_bit; } ret = atmel_init_port(port, pdev); -- cgit 1.4.1 From e81107d4c6bd098878af9796b24edc8d4a9524fd Mon Sep 17 00:00:00 2001 From: Kosuke Tatsukawa Date: Fri, 2 Oct 2015 08:27:05 +0000 Subject: tty: fix stall caused by missing memory barrier in drivers/tty/n_tty.c My colleague ran into a program stall on a x86_64 server, where n_tty_read() was waiting for data even if there was data in the buffer in the pty. kernel stack for the stuck process looks like below. #0 [ffff88303d107b58] __schedule at ffffffff815c4b20 #1 [ffff88303d107bd0] schedule at ffffffff815c513e #2 [ffff88303d107bf0] schedule_timeout at ffffffff815c7818 #3 [ffff88303d107ca0] wait_woken at ffffffff81096bd2 #4 [ffff88303d107ce0] n_tty_read at ffffffff8136fa23 #5 [ffff88303d107dd0] tty_read at ffffffff81368013 #6 [ffff88303d107e20] __vfs_read at ffffffff811a3704 #7 [ffff88303d107ec0] vfs_read at ffffffff811a3a57 #8 [ffff88303d107f00] sys_read at ffffffff811a4306 #9 [ffff88303d107f50] entry_SYSCALL_64_fastpath at ffffffff815c86d7 There seems to be two problems causing this issue. First, in drivers/tty/n_tty.c, __receive_buf() stores the data and updates ldata->commit_head using smp_store_release() and then checks the wait queue using waitqueue_active(). However, since there is no memory barrier, __receive_buf() could return without calling wake_up_interactive_poll(), and at the same time, n_tty_read() could start to wait in wait_woken() as in the following chart. __receive_buf() n_tty_read() ------------------------------------------------------------------------ if (waitqueue_active(&tty->read_wait)) /* Memory operations issued after the RELEASE may be completed before the RELEASE operation has completed */ add_wait_queue(&tty->read_wait, &wait); ... if (!input_available_p(tty, 0)) { smp_store_release(&ldata->commit_head, ldata->read_head); ... timeout = wait_woken(&wait, TASK_INTERRUPTIBLE, timeout); ------------------------------------------------------------------------ The second problem is that n_tty_read() also lacks a memory barrier call and could also cause __receive_buf() to return without calling wake_up_interactive_poll(), and n_tty_read() to wait in wait_woken() as in the chart below. __receive_buf() n_tty_read() ------------------------------------------------------------------------ spin_lock_irqsave(&q->lock, flags); /* from add_wait_queue() */ ... if (!input_available_p(tty, 0)) { /* Memory operations issued after the RELEASE may be completed before the RELEASE operation has completed */ smp_store_release(&ldata->commit_head, ldata->read_head); if (waitqueue_active(&tty->read_wait)) __add_wait_queue(q, wait); spin_unlock_irqrestore(&q->lock,flags); /* from add_wait_queue() */ ... timeout = wait_woken(&wait, TASK_INTERRUPTIBLE, timeout); ------------------------------------------------------------------------ There are also other places in drivers/tty/n_tty.c which have similar calls to waitqueue_active(), so instead of adding many memory barrier calls, this patch simply removes the call to waitqueue_active(), leaving just wake_up*() behind. This fixes both problems because, even though the memory access before or after the spinlocks in both wake_up*() and add_wait_queue() can sneak into the critical section, it cannot go past it and the critical section assures that they will be serialized (please see "INTER-CPU ACQUIRING BARRIER EFFECTS" in Documentation/memory-barriers.txt for a better explanation). Moreover, the resulting code is much simpler. Latency measurement using a ping-pong test over a pty doesn't show any visible performance drop. Signed-off-by: Kosuke Tatsukawa Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/tty/n_tty.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 20932cc9c8f7..b09023b07169 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -343,8 +343,7 @@ static void n_tty_packet_mode_flush(struct tty_struct *tty) spin_lock_irqsave(&tty->ctrl_lock, flags); tty->ctrl_status |= TIOCPKT_FLUSHREAD; spin_unlock_irqrestore(&tty->ctrl_lock, flags); - if (waitqueue_active(&tty->link->read_wait)) - wake_up_interruptible(&tty->link->read_wait); + wake_up_interruptible(&tty->link->read_wait); } } @@ -1382,8 +1381,7 @@ handle_newline: put_tty_queue(c, ldata); smp_store_release(&ldata->canon_head, ldata->read_head); kill_fasync(&tty->fasync, SIGIO, POLL_IN); - if (waitqueue_active(&tty->read_wait)) - wake_up_interruptible_poll(&tty->read_wait, POLLIN); + wake_up_interruptible_poll(&tty->read_wait, POLLIN); return 0; } } @@ -1667,8 +1665,7 @@ static void __receive_buf(struct tty_struct *tty, const unsigned char *cp, if ((read_cnt(ldata) >= ldata->minimum_to_wake) || L_EXTPROC(tty)) { kill_fasync(&tty->fasync, SIGIO, POLL_IN); - if (waitqueue_active(&tty->read_wait)) - wake_up_interruptible_poll(&tty->read_wait, POLLIN); + wake_up_interruptible_poll(&tty->read_wait, POLLIN); } } @@ -1887,10 +1884,8 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old) } /* The termios change make the tty ready for I/O */ - if (waitqueue_active(&tty->write_wait)) - wake_up_interruptible(&tty->write_wait); - if (waitqueue_active(&tty->read_wait)) - wake_up_interruptible(&tty->read_wait); + wake_up_interruptible(&tty->write_wait); + wake_up_interruptible(&tty->read_wait); } /** -- cgit 1.4.1 From 7098296a362a96051fa120abf48f0095818b99cd Mon Sep 17 00:00:00 2001 From: Dmitry Vyukov Date: Thu, 17 Sep 2015 17:17:08 +0200 Subject: tty: fix data race in flush_to_ldisc flush_to_ldisc reads port->itty and checks that it is not NULL, concurrently release_tty sets port->itty to NULL. It is possible that flush_to_ldisc loads port->itty once, ensures that it is not NULL, but then reloads it again and uses. The second load can already return NULL, which will cause a crash. Use READ_ONCE to read port->itty. The data race was found with KernelThreadSanitizer (KTSAN). Signed-off-by: Dmitry Vyukov Reviewed-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index 5a3fa8913880..23de97de09a4 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -467,7 +467,7 @@ static void flush_to_ldisc(struct work_struct *work) struct tty_struct *tty; struct tty_ldisc *disc; - tty = port->itty; + tty = READ_ONCE(port->itty); if (tty == NULL) return; -- cgit 1.4.1 From 9e6b7cd7e77d4ca43b57c726d9bfa86d06e0567f Mon Sep 17 00:00:00 2001 From: Dmitry Vyukov Date: Thu, 17 Sep 2015 17:17:09 +0200 Subject: tty: fix data race in tty_buffer_flush tty_buffer_flush frees not acquired buffers. As the result, for example, read of b->size in tty_buffer_free can return garbage value which will lead to a huge buffer hanging in the freelist. This is just the benignest manifestation of freeing of a not acquired object. If the object is passed to kfree, heap can be corrupted. Acquire visibility over the buffer before freeing it. The data race was found with KernelThreadSanitizer (KTSAN). Signed-off-by: Dmitry Vyukov Reviewed-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_buffer.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index 23de97de09a4..b3a5e33948c1 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -242,7 +242,10 @@ void tty_buffer_flush(struct tty_struct *tty, struct tty_ldisc *ld) atomic_inc(&buf->priority); mutex_lock(&buf->lock); - while ((next = buf->head->next) != NULL) { + /* paired w/ release in __tty_buffer_request_room; ensures there are + * no pending memory accesses to the freed buffer + */ + while ((next = smp_load_acquire(&buf->head->next)) != NULL) { tty_buffer_free(port, buf->head); buf->head = next; } -- cgit 1.4.1 From facd885c75067c2a88b72622dfb0fa4b9510da5e Mon Sep 17 00:00:00 2001 From: Dmitry Vyukov Date: Thu, 17 Sep 2015 17:17:10 +0200 Subject: tty: fix data race on tty_buffer.commit Race on buffer data happens when newly committed data is picked up by an old flush work in the following scenario: __tty_buffer_request_room does a plain write of tail->commit, no barriers were executed before that. At this point flush_to_ldisc reads this new value of commit, and reads buffer data, no barriers in between. The committed buffer data is not necessary visible to flush_to_ldisc. Similar bug happens when tty_schedule_flip commits data. Update commit with smp_store_release and read commit with smp_load_acquire, as it is commit that signals data readiness. This is orthogonal to the existing synchronization on tty_buffer.next, which is required to not dismiss a buffer with unconsumed data. The data race was found with KernelThreadSanitizer (KTSAN). Signed-off-by: Dmitry Vyukov Reviewed-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_buffer.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index b3a5e33948c1..a660ab181cca 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -293,7 +293,10 @@ static int __tty_buffer_request_room(struct tty_port *port, size_t size, if (n != NULL) { n->flags = flags; buf->tail = n; - b->commit = b->used; + /* paired w/ acquire in flush_to_ldisc(); ensures + * flush_to_ldisc() sees buffer data. + */ + smp_store_release(&b->commit, b->used); /* paired w/ acquire in flush_to_ldisc(); ensures the * latest commit value can be read before the head is * advanced to the next buffer @@ -396,7 +399,10 @@ void tty_schedule_flip(struct tty_port *port) { struct tty_bufhead *buf = &port->buf; - buf->tail->commit = buf->tail->used; + /* paired w/ acquire in flush_to_ldisc(); ensures + * flush_to_ldisc() sees buffer data. + */ + smp_store_release(&buf->tail->commit, buf->tail->used); schedule_work(&buf->work); } EXPORT_SYMBOL(tty_schedule_flip); @@ -494,7 +500,10 @@ static void flush_to_ldisc(struct work_struct *work) * is advancing to the next buffer */ next = smp_load_acquire(&head->next); - count = head->commit - head->read; + /* paired w/ release in __tty_buffer_request_room() or in + * tty_buffer_flush(); ensures we see the committed buffer data + */ + count = smp_load_acquire(&head->commit) - head->read; if (!count) { if (next == NULL) { check_other_closed(tty); -- cgit 1.4.1 From 3c5a0357fdb3a9116a48dbdb0abb91fd23fbff80 Mon Sep 17 00:00:00 2001 From: Mans Rullgard Date: Fri, 2 Oct 2015 17:50:31 +0100 Subject: serial: 8250: add uart_config entry for PORT_RT2880 This adds an entry to the uart_config table for PORT_RT2880 enabling rx/tx FIFOs. The UART is actually a Palmchip BK-3103 which is found in several devices from Alchemy/RMI, Ralink, and Sigma Designs. Signed-off-by: Mans Rullgard Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/8250/8250_port.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index b1e0ba3e525b..0bbf34035d6a 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -261,6 +261,14 @@ configured less than Maximum supported fifo bytes */ UART_FCR7_64BYTE, .flags = UART_CAP_FIFO, }, + [PORT_RT2880] = { + .name = "Palmchip BK-3103", + .fifo_size = 16, + .tx_loadsz = 16, + .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10, + .rxtrig_bytes = {1, 4, 8, 14}, + .flags = UART_CAP_FIFO, + }, }; /* Uart divisor latch read */ -- cgit 1.4.1 From 0c55627167870255158db1cde0d28366f91c8872 Mon Sep 17 00:00:00 2001 From: Jann Horn Date: Sun, 4 Oct 2015 19:29:12 +0200 Subject: drivers/tty: require read access for controlling terminal This is mostly a hardening fix, given that write-only access to other users' ttys is usually only given through setgid tty executables. Signed-off-by: Jann Horn Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/tty/tty_io.c | 31 +++++++++++++++++++++++++++---- 1 file changed, 27 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 17b027242734..2eefaa6e3e3a 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -2128,8 +2128,24 @@ retry_open: if (!noctty && current->signal->leader && !current->signal->tty && - tty->session == NULL) - __proc_set_tty(tty); + tty->session == NULL) { + /* + * Don't let a process that only has write access to the tty + * obtain the privileges associated with having a tty as + * controlling terminal (being able to reopen it with full + * access through /dev/tty, being able to perform pushback). + * Many distributions set the group of all ttys to "tty" and + * grant write-only access to all terminals for setgid tty + * binaries, which should not imply full privileges on all ttys. + * + * This could theoretically break old code that performs open() + * on a write-only file descriptor. In that case, it might be + * necessary to also permit this if + * inode_permission(inode, MAY_READ) == 0. + */ + if (filp->f_mode & FMODE_READ) + __proc_set_tty(tty); + } spin_unlock_irq(¤t->sighand->siglock); read_unlock(&tasklist_lock); tty_unlock(tty); @@ -2418,7 +2434,7 @@ static int fionbio(struct file *file, int __user *p) * Takes ->siglock() when updating signal->tty */ -static int tiocsctty(struct tty_struct *tty, int arg) +static int tiocsctty(struct tty_struct *tty, struct file *file, int arg) { int ret = 0; @@ -2452,6 +2468,13 @@ static int tiocsctty(struct tty_struct *tty, int arg) goto unlock; } } + + /* See the comment in tty_open(). */ + if ((file->f_mode & FMODE_READ) == 0 && !capable(CAP_SYS_ADMIN)) { + ret = -EPERM; + goto unlock; + } + proc_set_tty(tty); unlock: read_unlock(&tasklist_lock); @@ -2844,7 +2867,7 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg) no_tty(); return 0; case TIOCSCTTY: - return tiocsctty(tty, arg); + return tiocsctty(tty, file, arg); case TIOCGPGRP: return tiocgpgrp(tty, real_tty, p); case TIOCSPGRP: -- cgit 1.4.1 From b1d562acc78f0af46de0dfe447410bc40bdb7ece Mon Sep 17 00:00:00 2001 From: "covici@ccs.covici.com" Date: Wed, 20 May 2015 05:44:11 -0400 Subject: staging: speakup: fix speakup-r regression Here is a patch to make speakup-r work again. It broke in 3.6 due to commit 4369c64c79a22b98d3b7eff9d089196cd878a10a "Input: Send events one packet at a time) The problem was that the fakekey.c routine to fake a down arrow no longer functioned properly and putting the input_sync fixed it. Fixes: 4369c64c79a22b98d3b7eff9d089196cd878a10a Cc: stable Acked-by: Samuel Thibault Signed-off-by: John Covici Signed-off-by: Greg Kroah-Hartman --- drivers/staging/speakup/fakekey.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/staging/speakup/fakekey.c b/drivers/staging/speakup/fakekey.c index 4299cf45f947..5e1f16c36b49 100644 --- a/drivers/staging/speakup/fakekey.c +++ b/drivers/staging/speakup/fakekey.c @@ -81,6 +81,7 @@ void speakup_fake_down_arrow(void) __this_cpu_write(reporting_keystroke, true); input_report_key(virt_keyboard, KEY_DOWN, PRESSED); input_report_key(virt_keyboard, KEY_DOWN, RELEASED); + input_sync(virt_keyboard); __this_cpu_write(reporting_keystroke, false); /* reenable preemption */ -- cgit 1.4.1 From 41ada9df7f340998e810dcda21a00da5f75c4147 Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Mon, 24 Aug 2015 10:18:38 +0200 Subject: mcb: Fix error handling in mcb_pci_probe() If a MCB PCI Carrier device is IO mapped insted of memory-mapped, the memory of the PCI device is still not unmapped. Also the patch adds deallocation of the bus if chameleon_parse_cells() fails. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: Johannes Thumshirn Signed-off-by: Greg Kroah-Hartman --- drivers/mcb/mcb-pci.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mcb/mcb-pci.c b/drivers/mcb/mcb-pci.c index de36237d7c6b..051645498b53 100644 --- a/drivers/mcb/mcb-pci.c +++ b/drivers/mcb/mcb-pci.c @@ -74,7 +74,7 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) ret = -ENOTSUPP; dev_err(&pdev->dev, "IO mapped PCI devices are not supported\n"); - goto out_release; + goto out_iounmap; } pci_set_drvdata(pdev, priv); @@ -89,7 +89,7 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) ret = chameleon_parse_cells(priv->bus, priv->mapbase, priv->base); if (ret < 0) - goto out_iounmap; + goto out_mcb_bus; num_cells = ret; dev_dbg(&pdev->dev, "Found %d cells\n", num_cells); @@ -98,6 +98,8 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) return 0; +out_mcb_bus: + mcb_release_bus(priv->bus); out_iounmap: iounmap(priv->base); out_release: -- cgit 1.4.1 From 8c70e1cda04b966b50ddfefafbd0ea376ed8edd5 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 2 Oct 2015 16:52:58 -0400 Subject: drm/radeon: restore the fbdev mode in lastclose MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit restore the fbdev state if a drm app like X is killed. Tested-by: Michel Dänzer Reviewed-by: Michel Dänzer Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_fb.c | 16 ++++++++++++++++ drivers/gpu/drm/radeon/radeon_kms.c | 5 ++++- drivers/gpu/drm/radeon/radeon_mode.h | 1 + 3 files changed, 21 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c index 1aa657fe31cb..26da2f4d7b4f 100644 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ b/drivers/gpu/drm/radeon/radeon_fb.c @@ -397,3 +397,19 @@ void radeon_fb_remove_connector(struct radeon_device *rdev, struct drm_connector { drm_fb_helper_remove_one_connector(&rdev->mode_info.rfbdev->helper, connector); } + +void radeon_fbdev_restore_mode(struct radeon_device *rdev) +{ + struct radeon_fbdev *rfbdev = rdev->mode_info.rfbdev; + struct drm_fb_helper *fb_helper; + int ret; + + if (!rfbdev) + return; + + fb_helper = &rfbdev->helper; + + ret = drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper); + if (ret) + DRM_DEBUG("failed to restore crtc mode\n"); +} diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 4a119c255ba9..0e932bf932c1 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -598,7 +598,7 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file * Outdated mess for old drm with Xorg being in charge (void function now). */ /** - * radeon_driver_firstopen_kms - drm callback for last close + * radeon_driver_lastclose_kms - drm callback for last close * * @dev: drm dev pointer * @@ -606,6 +606,9 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file */ void radeon_driver_lastclose_kms(struct drm_device *dev) { + struct radeon_device *rdev = dev->dev_private; + + radeon_fbdev_restore_mode(rdev); vga_switcheroo_process_delayed_switch(); } diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index aecc3e3dec0c..457b026a0972 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -980,6 +980,7 @@ int radeon_fbdev_init(struct radeon_device *rdev); void radeon_fbdev_fini(struct radeon_device *rdev); void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state); bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj); +void radeon_fbdev_restore_mode(struct radeon_device *rdev); void radeon_fb_output_poll_changed(struct radeon_device *rdev); -- cgit 1.4.1 From 8b7530b15c3332220a081035ab467c9359aff409 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 2 Oct 2015 16:59:34 -0400 Subject: drm/amdgpu: restore the fbdev mode in lastclose MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit restore the fbdev state if a drm app like X is killed. Reviewed-by: Michel Dänzer Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 16 ++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 5 ++++- drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 1 + 3 files changed, 21 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c index 8a122b1b7786..96290d9cddca 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c @@ -402,3 +402,19 @@ bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj) return true; return false; } + +void amdgpu_fbdev_restore_mode(struct amdgpu_device *adev) +{ + struct amdgpu_fbdev *afbdev = adev->mode_info.rfbdev; + struct drm_fb_helper *fb_helper; + int ret; + + if (!afbdev) + return; + + fb_helper = &afbdev->helper; + + ret = drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper); + if (ret) + DRM_DEBUG("failed to restore crtc mode\n"); +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 8c735f544b66..5d11e798230c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -485,7 +485,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file * Outdated mess for old drm with Xorg being in charge (void function now). */ /** - * amdgpu_driver_firstopen_kms - drm callback for last close + * amdgpu_driver_lastclose_kms - drm callback for last close * * @dev: drm dev pointer * @@ -493,6 +493,9 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file */ void amdgpu_driver_lastclose_kms(struct drm_device *dev) { + struct amdgpu_device *adev = dev->dev_private; + + amdgpu_fbdev_restore_mode(adev); vga_switcheroo_process_delayed_switch(); } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h index 64efe5b52e65..7bd470d9ac30 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h @@ -567,6 +567,7 @@ void amdgpu_fbdev_fini(struct amdgpu_device *adev); void amdgpu_fbdev_set_suspend(struct amdgpu_device *adev, int state); int amdgpu_fbdev_total_size(struct amdgpu_device *adev); bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj); +void amdgpu_fbdev_restore_mode(struct amdgpu_device *adev); void amdgpu_fb_output_poll_changed(struct amdgpu_device *adev); -- cgit 1.4.1 From 26d0c21db1fd1679fcf07863741c13ba5ce37a65 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 5 Oct 2015 10:15:14 -0400 Subject: drm/amdgpu: fix num_crtc on CZ Hw only has 3 crtcs. copy paste typo. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c index 6411e8244671..fcd2ed558902 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c @@ -2888,7 +2888,7 @@ static int dce_v11_0_early_init(void *handle) switch (adev->asic_type) { case CHIP_CARRIZO: - adev->mode_info.num_crtc = 4; + adev->mode_info.num_crtc = 3; adev->mode_info.num_hpd = 6; adev->mode_info.num_dig = 9; break; -- cgit 1.4.1 From d79e6801b1868ff65f4c956d782946c6221a4c1d Mon Sep 17 00:00:00 2001 From: Philippe Bergheaud Date: Fri, 2 Oct 2015 15:23:33 +1000 Subject: cxl: Workaround malformed pcie packets on some cards This works around a pcie host bridge defect on some cards, that can cause malformed Transaction Layer Packet (TLP) errors to be erroneously reported. The upper nibble of the vendor section PSL revision is used to distinguish between different cards. The affected ones have it set to 0. Signed-off-by: Philippe Bergheaud Acked-by: Ian Munsie Signed-off-by: Michael Ellerman --- drivers/misc/cxl/pci.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'drivers') diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c index a5e977192b61..85761d7eb333 100644 --- a/drivers/misc/cxl/pci.c +++ b/drivers/misc/cxl/pci.c @@ -1035,6 +1035,32 @@ static int cxl_read_vsec(struct cxl *adapter, struct pci_dev *dev) return 0; } +/* + * Workaround a PCIe Host Bridge defect on some cards, that can cause + * malformed Transaction Layer Packet (TLP) errors to be erroneously + * reported. Mask this error in the Uncorrectable Error Mask Register. + * + * The upper nibble of the PSL revision is used to distinguish between + * different cards. The affected ones have it set to 0. + */ +static void cxl_fixup_malformed_tlp(struct cxl *adapter, struct pci_dev *dev) +{ + int aer; + u32 data; + + if (adapter->psl_rev & 0xf000) + return; + if (!(aer = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR))) + return; + pci_read_config_dword(dev, aer + PCI_ERR_UNCOR_MASK, &data); + if (data & PCI_ERR_UNC_MALF_TLP) + if (data & PCI_ERR_UNC_INTN) + return; + data |= PCI_ERR_UNC_MALF_TLP; + data |= PCI_ERR_UNC_INTN; + pci_write_config_dword(dev, aer + PCI_ERR_UNCOR_MASK, data); +} + static int cxl_vsec_looks_ok(struct cxl *adapter, struct pci_dev *dev) { if (adapter->vsec_status & CXL_STATUS_SECOND_PORT) @@ -1134,6 +1160,8 @@ static int cxl_configure_adapter(struct cxl *adapter, struct pci_dev *dev) if ((rc = cxl_vsec_looks_ok(adapter, dev))) return rc; + cxl_fixup_malformed_tlp(adapter, dev); + if ((rc = setup_cxl_bars(dev))) return rc; -- cgit 1.4.1 From 50887bd139b83ce4489ed865a04bf1be5559c4ad Mon Sep 17 00:00:00 2001 From: Junichi Nomura Date: Tue, 6 Oct 2015 04:19:54 +0000 Subject: dm: fix request-based dm error reporting end_clone_bio() is a endio callback for clone bio and should check and save the clone's bi_error for error reporting. However, 4246a0b63bd8 ("block: add a bi_error field to struct bio") changed the function to check the original bio's bi_error, which is 0. Without this fix, clone's error is ignored and reported to the original request as success. Thus data corruption will be observed. Fixes: 4246a0b63bd8 ("block: add a bi_error field to struct bio") Signed-off-by: Jun'ichi Nomura Cc: Christoph Hellwig Signed-off-by: Mike Snitzer --- drivers/md/dm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 7289ece3b560..1b5c6047e4f1 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1001,6 +1001,7 @@ static void end_clone_bio(struct bio *clone) struct dm_rq_target_io *tio = info->tio; struct bio *bio = info->orig; unsigned int nr_bytes = info->orig->bi_iter.bi_size; + int error = clone->bi_error; bio_put(clone); @@ -1011,13 +1012,13 @@ static void end_clone_bio(struct bio *clone) * the remainder. */ return; - else if (bio->bi_error) { + else if (error) { /* * Don't notice the error to the upper layer yet. * The error handling decision is made by the target driver, * when the request is completed. */ - tio->error = bio->bi_error; + tio->error = error; return; } -- cgit 1.4.1 From e79d5c0870eedce94e5f5a2ffab30511e48fa144 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 6 Oct 2015 09:38:45 -0400 Subject: drm/amdgpu: check before checking pci bridge registers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Make sure we are not the root device before attempting to read the pcie bridge registers to check the pcie gen speeed. Fixes a crash when the device is passed through to a VM. Reviewed-by: Christian König Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/cik.c | 3 +++ drivers/gpu/drm/amd/amdgpu/vi.c | 3 +++ 2 files changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c index 4b6ce74753cd..484710cfdf82 100644 --- a/drivers/gpu/drm/amd/amdgpu/cik.c +++ b/drivers/gpu/drm/amd/amdgpu/cik.c @@ -1567,6 +1567,9 @@ static void cik_pcie_gen3_enable(struct amdgpu_device *adev) int ret, i; u16 tmp16; + if (pci_is_root_bus(adev->pdev->bus)) + return; + if (amdgpu_pcie_gen2 == 0) return; diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index b55ceb14fdcd..0bac8702e934 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -1005,6 +1005,9 @@ static void vi_pcie_gen3_enable(struct amdgpu_device *adev) u32 mask; int ret; + if (pci_is_root_bus(adev->pdev->bus)) + return; + if (amdgpu_pcie_gen2 == 0) return; -- cgit 1.4.1 From 9a65e6866f039ff029acffc05195d54bc6ca6aeb Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 6 Oct 2015 10:52:31 -0400 Subject: drm/amdgpu: flag iceland as experimental MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit These have not been tested very extensively and generally seem to be problematic. Mark them as experimental for now. bug: https://bugs.freedesktop.org/show_bug.cgi?id=92270 Reviewed-by: Christian König Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index adb48353f2e1..b190c2a83680 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -242,11 +242,11 @@ static struct pci_device_id pciidlist[] = { {0x1002, 0x985F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_MULLINS|AMD_IS_MOBILITY|AMD_IS_APU}, #endif /* topaz */ - {0x1002, 0x6900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ}, - {0x1002, 0x6901, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ}, - {0x1002, 0x6902, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ}, - {0x1002, 0x6903, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ}, - {0x1002, 0x6907, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ}, + {0x1002, 0x6900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT}, + {0x1002, 0x6901, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT}, + {0x1002, 0x6902, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT}, + {0x1002, 0x6903, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT}, + {0x1002, 0x6907, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TOPAZ|AMD_EXP_HW_SUPPORT}, /* tonga */ {0x1002, 0x6920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TONGA}, {0x1002, 0x6921, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TONGA}, -- cgit 1.4.1 From 3805eade3b7c4a5ad593525703c2c82a84fd9b13 Mon Sep 17 00:00:00 2001 From: Jeff Squyres Date: Wed, 30 Sep 2015 13:34:00 -0700 Subject: usnic: add missing clauses to BSD license The usnic_verbs kernel module was clearly marked with the following in its code: MODULE_LICENSE("Dual BSD/GPL"); However, we accidentally left a few clauses of the BSD text out of the license header in all the source files. This commit fixes that: all the files are properly dual BSD/GPL-licensed. Contributors that might have been confused by this have been contacted to get their permission and are Cc:ed here. Cc: Benoit Taine Cc: Ira Weiny Cc: Joerg Roedel Cc: Masanari Iida Cc: Matan Barak Cc: Michael Wang Cc: Roland Dreier Cc: Wei Yongjun Cc: Dan Carpenter Cc: Fabio Estevam Cc: Or Gerlitz Signed-off-by: Jeff Squyres Signed-off-by: Doug Ledford --- drivers/infiniband/hw/usnic/usnic.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_abi.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_common_pkt_hdr.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_common_util.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_debugfs.c | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_debugfs.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_fwd.c | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_fwd.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_ib.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_ib_main.c | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_ib_sysfs.c | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_ib_sysfs.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_ib_verbs.c | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_ib_verbs.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_log.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_transport.c | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_transport.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_uiom.c | 2 +- drivers/infiniband/hw/usnic/usnic_uiom.h | 21 ++++++++++++++++++--- .../infiniband/hw/usnic/usnic_uiom_interval_tree.c | 21 ++++++++++++++++++--- .../infiniband/hw/usnic/usnic_uiom_interval_tree.h | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_vnic.c | 21 ++++++++++++++++++--- drivers/infiniband/hw/usnic/usnic_vnic.h | 21 ++++++++++++++++++--- 25 files changed, 433 insertions(+), 73 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/usnic/usnic.h b/drivers/infiniband/hw/usnic/usnic.h index 5be13d8991bc..f903502d3883 100644 --- a/drivers/infiniband/hw/usnic/usnic.h +++ b/drivers/infiniband/hw/usnic/usnic.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_abi.h b/drivers/infiniband/hw/usnic/usnic_abi.h index 04a66229584e..7fe9502ce8d3 100644 --- a/drivers/infiniband/hw/usnic/usnic_abi.h +++ b/drivers/infiniband/hw/usnic/usnic_abi.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_common_pkt_hdr.h b/drivers/infiniband/hw/usnic/usnic_common_pkt_hdr.h index 393567266142..596e0ed49a8e 100644 --- a/drivers/infiniband/hw/usnic/usnic_common_pkt_hdr.h +++ b/drivers/infiniband/hw/usnic/usnic_common_pkt_hdr.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_common_util.h b/drivers/infiniband/hw/usnic/usnic_common_util.h index 9d737ed5e55d..b54986de5f0c 100644 --- a/drivers/infiniband/hw/usnic/usnic_common_util.h +++ b/drivers/infiniband/hw/usnic/usnic_common_util.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_debugfs.c b/drivers/infiniband/hw/usnic/usnic_debugfs.c index 5d13860161a4..5e55b8bc6fe4 100644 --- a/drivers/infiniband/hw/usnic/usnic_debugfs.c +++ b/drivers/infiniband/hw/usnic/usnic_debugfs.c @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_debugfs.h b/drivers/infiniband/hw/usnic/usnic_debugfs.h index 4087d24a88f6..98453e91daa6 100644 --- a/drivers/infiniband/hw/usnic/usnic_debugfs.h +++ b/drivers/infiniband/hw/usnic/usnic_debugfs.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_fwd.c b/drivers/infiniband/hw/usnic/usnic_fwd.c index e3c9bd9d3ba3..3c37dd59c04e 100644 --- a/drivers/infiniband/hw/usnic/usnic_fwd.c +++ b/drivers/infiniband/hw/usnic/usnic_fwd.c @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_fwd.h b/drivers/infiniband/hw/usnic/usnic_fwd.h index 93713a2230b3..3a8add9ddf46 100644 --- a/drivers/infiniband/hw/usnic/usnic_fwd.h +++ b/drivers/infiniband/hw/usnic/usnic_fwd.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_ib.h b/drivers/infiniband/hw/usnic/usnic_ib.h index e5a9297dd1bd..525bf272671e 100644 --- a/drivers/infiniband/hw/usnic/usnic_ib.h +++ b/drivers/infiniband/hw/usnic/usnic_ib.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_ib_main.c b/drivers/infiniband/hw/usnic/usnic_ib_main.c index 34c49b8105fe..0c15bd885035 100644 --- a/drivers/infiniband/hw/usnic/usnic_ib_main.c +++ b/drivers/infiniband/hw/usnic/usnic_ib_main.c @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c b/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c index db3588df3546..85dc3f989ff7 100644 --- a/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c +++ b/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h b/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h index b0aafe8db0c3..b1458be1d402 100644 --- a/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h +++ b/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_ib_sysfs.c b/drivers/infiniband/hw/usnic/usnic_ib_sysfs.c index 27dc67c1689f..3412ea06116e 100644 --- a/drivers/infiniband/hw/usnic/usnic_ib_sysfs.c +++ b/drivers/infiniband/hw/usnic/usnic_ib_sysfs.c @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_ib_sysfs.h b/drivers/infiniband/hw/usnic/usnic_ib_sysfs.h index 0d09b493cd02..3d98e16cfeaf 100644 --- a/drivers/infiniband/hw/usnic/usnic_ib_sysfs.h +++ b/drivers/infiniband/hw/usnic/usnic_ib_sysfs.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c index 7df43827cb29..f8e3211689a3 100644 --- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c +++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.h b/drivers/infiniband/hw/usnic/usnic_ib_verbs.h index 0bd04efa16f3..414eaa566bd9 100644 --- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.h +++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_log.h b/drivers/infiniband/hw/usnic/usnic_log.h index 75777a66c684..183fcb6a952f 100644 --- a/drivers/infiniband/hw/usnic/usnic_log.h +++ b/drivers/infiniband/hw/usnic/usnic_log.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_transport.c b/drivers/infiniband/hw/usnic/usnic_transport.c index ddef6f77a78c..de318389a301 100644 --- a/drivers/infiniband/hw/usnic/usnic_transport.c +++ b/drivers/infiniband/hw/usnic/usnic_transport.c @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_transport.h b/drivers/infiniband/hw/usnic/usnic_transport.h index 7e5dc6d9f462..9a7a2d9755c0 100644 --- a/drivers/infiniband/hw/usnic/usnic_transport.h +++ b/drivers/infiniband/hw/usnic/usnic_transport.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c index cb2337f0532b..645a5f6e6c88 100644 --- a/drivers/infiniband/hw/usnic/usnic_uiom.c +++ b/drivers/infiniband/hw/usnic/usnic_uiom.c @@ -7,7 +7,7 @@ * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the - * OpenIB.org BSD license below: + * BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.h b/drivers/infiniband/hw/usnic/usnic_uiom.h index 70440996e8f2..45ca7c1613a7 100644 --- a/drivers/infiniband/hw/usnic/usnic_uiom.h +++ b/drivers/infiniband/hw/usnic/usnic_uiom.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.c b/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.c index 3a4288e0fbac..42b4b4c4e452 100644 --- a/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.c +++ b/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.c @@ -1,9 +1,24 @@ /* * Copyright (c) 2014, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h b/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h index d4f752e258fd..c0b0b876ab90 100644 --- a/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h +++ b/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_vnic.c b/drivers/infiniband/hw/usnic/usnic_vnic.c index 656b88c39eda..66de93fb8ea9 100644 --- a/drivers/infiniband/hw/usnic/usnic_vnic.c +++ b/drivers/infiniband/hw/usnic/usnic_vnic.c @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF diff --git a/drivers/infiniband/hw/usnic/usnic_vnic.h b/drivers/infiniband/hw/usnic/usnic_vnic.h index 14d931a8829d..a08423e478af 100644 --- a/drivers/infiniband/hw/usnic/usnic_vnic.h +++ b/drivers/infiniband/hw/usnic/usnic_vnic.h @@ -1,9 +1,24 @@ /* * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -- cgit 1.4.1 From b8cab5dab15ff5c2acc3faefdde28919b0341c11 Mon Sep 17 00:00:00 2001 From: Haggai Eran Date: Tue, 6 Oct 2015 17:56:00 +0300 Subject: IB/cma: Accept connection without a valid netdev on RoCE The netdev checks recently added to RDMA CM expect a valid netdev to be found for both InfiniBand and RoCE, but the code that find a netdev is only implemented for InfiniBand. Currently RoCE doesn't provide an API to find the netdev matching a given set of parameters, so this patch just disables the netdev enforcement for each incoming connections when the link layer is RoCE. Fixes: 4c21b5bcef73 ("IB/cma: Add net_dev and private data checks to RDMA CM") Reported-by: Kamal Heib Signed-off-by: Haggai Eran Signed-off-by: Doug Ledford --- drivers/infiniband/core/cma.c | 54 ++++++++++++++++++++++++++++++++----------- 1 file changed, 40 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index b1ab13f3e182..59a2dafc8c57 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -1232,14 +1232,32 @@ static bool cma_match_private_data(struct rdma_id_private *id_priv, return true; } +static bool cma_protocol_roce_dev_port(struct ib_device *device, int port_num) +{ + enum rdma_link_layer ll = rdma_port_get_link_layer(device, port_num); + enum rdma_transport_type transport = + rdma_node_get_transport(device->node_type); + + return ll == IB_LINK_LAYER_ETHERNET && transport == RDMA_TRANSPORT_IB; +} + +static bool cma_protocol_roce(const struct rdma_cm_id *id) +{ + struct ib_device *device = id->device; + const int port_num = id->port_num ?: rdma_start_port(device); + + return cma_protocol_roce_dev_port(device, port_num); +} + static bool cma_match_net_dev(const struct rdma_id_private *id_priv, const struct net_device *net_dev) { const struct rdma_addr *addr = &id_priv->id.route.addr; if (!net_dev) - /* This request is an AF_IB request */ - return addr->src_addr.ss_family == AF_IB; + /* This request is an AF_IB request or a RoCE request */ + return addr->src_addr.ss_family == AF_IB || + cma_protocol_roce(&id_priv->id); return !addr->dev_addr.bound_dev_if || (net_eq(dev_net(net_dev), &init_net) && @@ -1294,6 +1312,10 @@ static struct rdma_id_private *cma_id_from_event(struct ib_cm_id *cm_id, if (PTR_ERR(*net_dev) == -EAFNOSUPPORT) { /* Assuming the protocol is AF_IB */ *net_dev = NULL; + } else if (cma_protocol_roce_dev_port(req.device, req.port)) { + /* TODO find the net dev matching the request parameters + * through the RoCE GID table */ + *net_dev = NULL; } else { return ERR_CAST(*net_dev); } @@ -1593,11 +1615,16 @@ static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id, if (ret) goto err; } else { - /* An AF_IB connection */ - WARN_ON_ONCE(ss_family != AF_IB); - - cma_translate_ib((struct sockaddr_ib *)cma_src_addr(id_priv), - &rt->addr.dev_addr); + if (!cma_protocol_roce(listen_id) && + cma_any_addr(cma_src_addr(id_priv))) { + rt->addr.dev_addr.dev_type = ARPHRD_INFINIBAND; + rdma_addr_set_sgid(&rt->addr.dev_addr, &rt->path_rec[0].sgid); + ib_addr_set_pkey(&rt->addr.dev_addr, be16_to_cpu(rt->path_rec[0].pkey)); + } else if (!cma_any_addr(cma_src_addr(id_priv))) { + ret = cma_translate_addr(cma_src_addr(id_priv), &rt->addr.dev_addr); + if (ret) + goto err; + } } rdma_addr_set_dgid(&rt->addr.dev_addr, &rt->path_rec[0].dgid); @@ -1635,13 +1662,12 @@ static struct rdma_id_private *cma_new_udp_id(struct rdma_cm_id *listen_id, if (ret) goto err; } else { - /* An AF_IB connection */ - WARN_ON_ONCE(ss_family != AF_IB); - - if (!cma_any_addr(cma_src_addr(id_priv))) - cma_translate_ib((struct sockaddr_ib *) - cma_src_addr(id_priv), - &id->route.addr.dev_addr); + if (!cma_any_addr(cma_src_addr(id_priv))) { + ret = cma_translate_addr(cma_src_addr(id_priv), + &id->route.addr.dev_addr); + if (ret) + goto err; + } } id_priv->state = RDMA_CM_CONNECT; -- cgit 1.4.1 From 879f2fea8a5a748bcbf98d2cdce9139c045505d3 Mon Sep 17 00:00:00 2001 From: Andrey Gelman Date: Tue, 6 Oct 2015 15:43:43 -0700 Subject: Input: ads7846 - correct the value got from SPI According to the touch controller spec, SPI return a 16 bit value, only 12 bits are valid, they are bit[14-3]. The value of MISO and MOSI can be configured when SPI is in idle mode. Currently this touch driver assumes the SPI bus sets the MOSI and MISO in low level when SPI bus is in idle mode. So the bit[15] of the value got from SPI bus is always 0. But when SPI bus congfigures the MOSI and MISO in high level during the SPI idle mode, the bit[15] of the value get from SPI is always 1. If bit[15] is not masked, we may get the wrong value. Mask the invalid bit to make sure the correct value gets returned. Regardless of the SPI bus idle configuration. Signed-off-by: Andrey Gelman Signed-off-by: Haibo Chen Signed-off-by: Igor Grinberg Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/ads7846.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index 0f5f968592bd..04edc8f7122f 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -668,18 +668,22 @@ static int ads7846_no_filter(void *ads, int data_idx, int *val) static int ads7846_get_value(struct ads7846 *ts, struct spi_message *m) { + int value; struct spi_transfer *t = list_entry(m->transfers.prev, struct spi_transfer, transfer_list); if (ts->model == 7845) { - return be16_to_cpup((__be16 *)&(((char*)t->rx_buf)[1])) >> 3; + value = be16_to_cpup((__be16 *)&(((char *)t->rx_buf)[1])); } else { /* * adjust: on-wire is a must-ignore bit, a BE12 value, then * padding; built from two 8 bit values written msb-first. */ - return be16_to_cpup((__be16 *)t->rx_buf) >> 3; + value = be16_to_cpup((__be16 *)t->rx_buf); } + + /* enforce ADC output is 12 bits width */ + return (value >> 3) & 0xfff; } static void ads7846_update_value(struct spi_message *m, int val) -- cgit 1.4.1 From 60906529bec506a4bde93f04eb5e7a9dd9c42a3b Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Mon, 5 Oct 2015 12:20:26 +0200 Subject: drm/qxl: fix framebuffer dirty rectangle tracking. Commit "c0fe07a drm/qxl: rewrite framebuffer support" has a bug in the dirty rectangle tracking: Instead of ignoring an empty dirty rectangle when adding a new dirty region the dirty region gets extended to the upper left corner. Fix it. Cc: linux-stable@vger.kernel.org Signed-off-by: Gerd Hoffmann Signed-off-by: Dave Airlie --- drivers/gpu/drm/qxl/qxl_fb.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/qxl/qxl_fb.c b/drivers/gpu/drm/qxl/qxl_fb.c index 41c422fee31a..c4a552637c93 100644 --- a/drivers/gpu/drm/qxl/qxl_fb.c +++ b/drivers/gpu/drm/qxl/qxl_fb.c @@ -144,14 +144,17 @@ static void qxl_dirty_update(struct qxl_fbdev *qfbdev, spin_lock_irqsave(&qfbdev->dirty.lock, flags); - if (qfbdev->dirty.y1 < y) - y = qfbdev->dirty.y1; - if (qfbdev->dirty.y2 > y2) - y2 = qfbdev->dirty.y2; - if (qfbdev->dirty.x1 < x) - x = qfbdev->dirty.x1; - if (qfbdev->dirty.x2 > x2) - x2 = qfbdev->dirty.x2; + if ((qfbdev->dirty.y2 - qfbdev->dirty.y1) && + (qfbdev->dirty.x2 - qfbdev->dirty.x1)) { + if (qfbdev->dirty.y1 < y) + y = qfbdev->dirty.y1; + if (qfbdev->dirty.y2 > y2) + y2 = qfbdev->dirty.y2; + if (qfbdev->dirty.x1 < x) + x = qfbdev->dirty.x1; + if (qfbdev->dirty.x2 > x2) + x2 = qfbdev->dirty.x2; + } qfbdev->dirty.x1 = x; qfbdev->dirty.x2 = x2; -- cgit 1.4.1 From 7eb9974f3685f36f419bf9e66cfaee92849856fe Mon Sep 17 00:00:00 2001 From: Frediano Ziglio Date: Thu, 24 Sep 2015 14:25:14 +0100 Subject: drm/qxl: avoid buffer reservation in qxl_crtc_page_flip This avoid a dependency lock error. According to https://lwn.net/Articles/548909/ users of WW mutex API should avoid using different context. When a buffer is reserved with qxl_bo_reserve a ww_mutex_lock without context is used. However during qxl_draw_dirty_fb different locks with specific context are used. This is detected during a machine booting with a debug kernel with lock dependency checking enabled. Like many other function in this file to avoid this problem object pinning is used. Once the object is pinned is not necessary to keep the lock so it can be released avoiding the locking problem. Signed-off-by: Frediano Ziglio Signed-off-by: Dave Airlie --- drivers/gpu/drm/qxl/qxl_display.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c index 4649bd2ed340..183aea1abebc 100644 --- a/drivers/gpu/drm/qxl/qxl_display.c +++ b/drivers/gpu/drm/qxl/qxl_display.c @@ -242,6 +242,10 @@ static int qxl_crtc_page_flip(struct drm_crtc *crtc, bo->is_primary = true; ret = qxl_bo_reserve(bo, false); + if (ret) + return ret; + ret = qxl_bo_pin(bo, bo->type, NULL); + qxl_bo_unreserve(bo); if (ret) return ret; @@ -257,7 +261,11 @@ static int qxl_crtc_page_flip(struct drm_crtc *crtc, } drm_vblank_put(dev, qcrtc->index); - qxl_bo_unreserve(bo); + ret = qxl_bo_reserve(bo, false); + if (!ret) { + qxl_bo_unpin(bo); + qxl_bo_unreserve(bo); + } return 0; } -- cgit 1.4.1 From 266424b5377ed1c3033d97ed5bc4fca7d89921a1 Mon Sep 17 00:00:00 2001 From: Frediano Ziglio Date: Thu, 24 Sep 2015 14:18:22 +0100 Subject: drm/qxl: avoid dependency lock qxl_bo_unref calls drm_gem_object_unreference_unlocked which locks dev->struct_mutex. However this lock could be already locked if the call came from qxl_gem_object_free. As we don't need to call qxl_bo_ref/qxl_bo_unref cause qxl_release_list_add will hold a reference by itself avoid to call them and the possible deadlock. Signed-off-by: Frediano Ziglio Signed-off-by: Dave Airlie --- drivers/gpu/drm/qxl/qxl_release.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c index b66ec331c17c..4efa8e261baf 100644 --- a/drivers/gpu/drm/qxl/qxl_release.c +++ b/drivers/gpu/drm/qxl/qxl_release.c @@ -307,7 +307,7 @@ int qxl_alloc_surface_release_reserved(struct qxl_device *qdev, idr_ret = qxl_release_alloc(qdev, QXL_RELEASE_SURFACE_CMD, release); if (idr_ret < 0) return idr_ret; - bo = qxl_bo_ref(to_qxl_bo(entry->tv.bo)); + bo = to_qxl_bo(entry->tv.bo); (*release)->release_offset = create_rel->release_offset + 64; @@ -316,8 +316,6 @@ int qxl_alloc_surface_release_reserved(struct qxl_device *qdev, info = qxl_release_map(qdev, *release); info->id = idr_ret; qxl_release_unmap(qdev, *release, info); - - qxl_bo_unref(&bo); return 0; } -- cgit 1.4.1 From 4108efb02daa09cbb5db048ada55a5b021b5183d Mon Sep 17 00:00:00 2001 From: Christophe Lombard Date: Wed, 7 Oct 2015 16:07:40 +1100 Subject: cxl: Fix number of allocated pages in SPA The scheduled process area is currently allocated before assigning the correct maximum processes to the AFU, which will mean we only ever allocate a fixed number of pages for the scheduled process area. This will limit us to 958 processes with 2 x 64K pages. If we try to use more processes than that we'd probably overrun the buffer and corrupt memory or crash. AFUs that require three or more interrupts per process will not be affected as they are already limited to less processes than that, but we could hit it on an AFU that requires 0, 1 or 2 interrupts per process, or when using 4K pages. This patch moves the initialisation of the num_procs to before the SPA allocation so that enough pages will be allocated for the number of processes that the AFU supports. Signed-off-by: Christophe Lombard Signed-off-by: Ian Munsie Cc: # 3.18+ Signed-off-by: Michael Ellerman --- drivers/misc/cxl/native.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c index b37f2e8004f5..d2e75c88f4d2 100644 --- a/drivers/misc/cxl/native.c +++ b/drivers/misc/cxl/native.c @@ -457,6 +457,7 @@ static int activate_afu_directed(struct cxl_afu *afu) dev_info(&afu->dev, "Activating AFU directed mode\n"); + afu->num_procs = afu->max_procs_virtualised; if (afu->spa == NULL) { if (cxl_alloc_spa(afu)) return -ENOMEM; @@ -468,7 +469,6 @@ static int activate_afu_directed(struct cxl_afu *afu) cxl_p1n_write(afu, CXL_PSL_ID_An, CXL_PSL_ID_An_F | CXL_PSL_ID_An_L); afu->current_mode = CXL_MODE_DIRECTED; - afu->num_procs = afu->max_procs_virtualised; if ((rc = cxl_chardev_m_afu_add(afu))) return rc; -- cgit 1.4.1 From d663baba8b16f3097ac3fb5baf97c54970d2f1ff Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Wed, 30 Sep 2015 15:24:08 +0530 Subject: video: of: fix memory leak If of_parse_display_timing() fails we are printing an error message and jumping to the error path but we missed freeing "dt". Signed-off-by: Sudip Mukherjee Signed-off-by: Tomi Valkeinen --- drivers/video/of_display_timing.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/video/of_display_timing.c b/drivers/video/of_display_timing.c index 32d8275e4c88..8a1076beecd3 100644 --- a/drivers/video/of_display_timing.c +++ b/drivers/video/of_display_timing.c @@ -210,6 +210,7 @@ struct display_timings *of_get_display_timings(struct device_node *np) */ pr_err("%s: error in timing %d\n", of_node_full_name(np), disp->num_timings + 1); + kfree(dt); goto timingfail; } -- cgit 1.4.1 From 028423b0d8fa27c30a46da4af2a5cab230369de6 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 7 Oct 2015 09:41:27 +0200 Subject: drm/amdgpu: fix 32-bit compiler warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The new amdgpu driver passes a user space pointer in a 64-bit structure member, which is the correct way to do it, but it attempts to directly cast it to a __user pointer in the kernel, which causes a warning in three places: drm/amd/amdgpu/amdgpu_cs.c: In function 'amdgpu_cs_parser_init': drm/amd/amdgpu/amdgpu_cs.c:180:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] chunk_array_user = (uint64_t __user *)(cs->in.chunks); This changes all three to add an intermediate cast to 'unsigned long' as other drivers do. This avoids the warning and works correctly on both 32-bit and 64-bit architectures. Fixes: e60b344f6c0eff ("drm/amdgpu: optimize amdgpu_parser_init") Reviewed-by: Christian König Signed-off-by: Arnd Bergmann Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index cb3c274edb0a..fd16652aa277 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -177,7 +177,7 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data) /* get chunks */ INIT_LIST_HEAD(&p->validated); - chunk_array_user = (uint64_t __user *)(cs->in.chunks); + chunk_array_user = (uint64_t __user *)(unsigned long)(cs->in.chunks); if (copy_from_user(chunk_array, chunk_array_user, sizeof(uint64_t)*cs->in.num_chunks)) { ret = -EFAULT; @@ -197,7 +197,7 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data) struct drm_amdgpu_cs_chunk user_chunk; uint32_t __user *cdata; - chunk_ptr = (void __user *)chunk_array[i]; + chunk_ptr = (void __user *)(unsigned long)chunk_array[i]; if (copy_from_user(&user_chunk, chunk_ptr, sizeof(struct drm_amdgpu_cs_chunk))) { ret = -EFAULT; @@ -208,7 +208,7 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data) p->chunks[i].length_dw = user_chunk.length_dw; size = p->chunks[i].length_dw; - cdata = (void __user *)user_chunk.chunk_data; + cdata = (void __user *)(unsigned long)user_chunk.chunk_data; p->chunks[i].user_ptr = cdata; p->chunks[i].kdata = drm_malloc_ab(size, sizeof(uint32_t)); -- cgit 1.4.1 From 15e3d5a285ab9283136dba34bbf72886d9146706 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 3 Oct 2015 19:16:07 +0200 Subject: 3w-9xxx: don't unmap bounce buffered commands MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 3w controller don't dma map small single SGL entry commands but instead bounce buffer them. Add a helper to identify these commands and don't call scsi_dma_unmap for them. Based on an earlier patch from James Bottomley. Fixes: 118c85 ("3w-9xxx: fix command completion race") Reported-by: Tóth Attila Tested-by: Tóth Attila Signed-off-by: Christoph Hellwig Acked-by: Adam Radford Signed-off-by: James Bottomley --- drivers/scsi/3w-9xxx.c | 28 +++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index add419d6ff34..a56a7b243e91 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -212,6 +212,17 @@ static const struct file_operations twa_fops = { .llseek = noop_llseek, }; +/* + * The controllers use an inline buffer instead of a mapped SGL for small, + * single entry buffers. Note that we treat a zero-length transfer like + * a mapped SGL. + */ +static bool twa_command_mapped(struct scsi_cmnd *cmd) +{ + return scsi_sg_count(cmd) != 1 || + scsi_bufflen(cmd) >= TW_MIN_SGL_LENGTH; +} + /* This function will complete an aen request from the isr */ static int twa_aen_complete(TW_Device_Extension *tw_dev, int request_id) { @@ -1339,7 +1350,8 @@ static irqreturn_t twa_interrupt(int irq, void *dev_instance) } /* Now complete the io */ - scsi_dma_unmap(cmd); + if (twa_command_mapped(cmd)) + scsi_dma_unmap(cmd); cmd->scsi_done(cmd); tw_dev->state[request_id] = TW_S_COMPLETED; twa_free_request_id(tw_dev, request_id); @@ -1582,7 +1594,8 @@ static int twa_reset_device_extension(TW_Device_Extension *tw_dev) struct scsi_cmnd *cmd = tw_dev->srb[i]; cmd->result = (DID_RESET << 16); - scsi_dma_unmap(cmd); + if (twa_command_mapped(cmd)) + scsi_dma_unmap(cmd); cmd->scsi_done(cmd); } } @@ -1765,12 +1778,14 @@ static int twa_scsi_queue_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_ retval = twa_scsiop_execute_scsi(tw_dev, request_id, NULL, 0, NULL); switch (retval) { case SCSI_MLQUEUE_HOST_BUSY: - scsi_dma_unmap(SCpnt); + if (twa_command_mapped(SCpnt)) + scsi_dma_unmap(SCpnt); twa_free_request_id(tw_dev, request_id); break; case 1: SCpnt->result = (DID_ERROR << 16); - scsi_dma_unmap(SCpnt); + if (twa_command_mapped(SCpnt)) + scsi_dma_unmap(SCpnt); done(SCpnt); tw_dev->state[request_id] = TW_S_COMPLETED; twa_free_request_id(tw_dev, request_id); @@ -1831,8 +1846,7 @@ static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id, /* Map sglist from scsi layer to cmd packet */ if (scsi_sg_count(srb)) { - if ((scsi_sg_count(srb) == 1) && - (scsi_bufflen(srb) < TW_MIN_SGL_LENGTH)) { + if (!twa_command_mapped(srb)) { if (srb->sc_data_direction == DMA_TO_DEVICE || srb->sc_data_direction == DMA_BIDIRECTIONAL) scsi_sg_copy_to_buffer(srb, @@ -1905,7 +1919,7 @@ static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int re { struct scsi_cmnd *cmd = tw_dev->srb[request_id]; - if (scsi_bufflen(cmd) < TW_MIN_SGL_LENGTH && + if (!twa_command_mapped(cmd) && (cmd->sc_data_direction == DMA_FROM_DEVICE || cmd->sc_data_direction == DMA_BIDIRECTIONAL)) { if (scsi_sg_count(cmd) == 1) { -- cgit 1.4.1 From bb2726b52f2abdf46339a2d1293f76b5d5752705 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 7 Oct 2015 06:22:24 -0700 Subject: Revert "mmc: host: omap_hsmmc: use regulator_is_enabled to find pbias status" This reverts commit c55d7a0553643a7e8f120688b82b594471084d3c. Without reverting this commit we get "unbalanced disables for pbias_mmc_omap4" errors on omap4430. It seems that 4430 and 4460 behave in a different way for the PBIAS regulator registers and until that has been debugged further we cannot rely on the regulator status registers in hardare on 4430. Fixes: 7d607f917008 ("mmc: host: omap_hsmmc: use devm_regulator_get_optional() for vmmc") Cc: Felipe Balbi Cc: Kishon Vijay Abraham I Cc: Nishanth Menon Cc: Russell King Signed-off-by: Tony Lindgren Tested-by: Russell King Signed-off-by: Ulf Hansson --- drivers/mmc/host/omap_hsmmc.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 781e4db31767..ae3a2b902ad6 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -182,6 +182,7 @@ struct omap_hsmmc_host { struct clk *fclk; struct clk *dbclk; struct regulator *pbias; + bool pbias_enabled; void __iomem *base; int vqmmc_enabled; resource_size_t mapbase; @@ -328,20 +329,22 @@ static int omap_hsmmc_set_pbias(struct omap_hsmmc_host *host, bool power_on, return ret; } - if (!regulator_is_enabled(host->pbias)) { + if (host->pbias_enabled == 0) { ret = regulator_enable(host->pbias); if (ret) { dev_err(host->dev, "pbias reg enable fail\n"); return ret; } + host->pbias_enabled = 1; } } else { - if (regulator_is_enabled(host->pbias)) { + if (host->pbias_enabled == 1) { ret = regulator_disable(host->pbias); if (ret) { dev_err(host->dev, "pbias reg disable fail\n"); return ret; } + host->pbias_enabled = 0; } } @@ -2053,6 +2056,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev) host->base = base + pdata->reg_offset; host->power_mode = MMC_POWER_OFF; host->next_data.cookie = 1; + host->pbias_enabled = 0; host->vqmmc_enabled = 0; ret = omap_hsmmc_gpio_init(mmc, host, pdata); -- cgit 1.4.1 From 123e20b14530b57bd75e295961d2c1f8c48455bf Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 7 Oct 2015 06:22:25 -0700 Subject: mmc: host: omap_hsmmc: Fix MMC for omap3 legacy booting Starting with commit 7d607f917008 ("mmc: host: omap_hsmmc: use devm_regulator_get_optional() for vmmc") MMC on omap3 stopped working for legacy booting. This is because legacy booting sets up some of the resource in the platform init code, and for optional regulators always seem to return -EPROBE_DEFER for the legacy booting. Let's fix the issue by checking for device tree based booting for now. Then when omap3 boots in device tree only mode, this patch can be just reverted. Fixes: 7d607f917008 ("mmc: host: omap_hsmmc: use devm_regulator_get_optional() for vmmc") Cc: Felipe Balbi Cc: Kishon Vijay Abraham I Cc: Nishanth Menon Cc: Russell King Signed-off-by: Tony Lindgren Tested-by: Russell King Signed-off-by: Ulf Hansson --- drivers/mmc/host/omap_hsmmc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index ae3a2b902ad6..7fb0753abe30 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -478,7 +478,7 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host) mmc->supply.vmmc = devm_regulator_get_optional(host->dev, "vmmc"); if (IS_ERR(mmc->supply.vmmc)) { ret = PTR_ERR(mmc->supply.vmmc); - if (ret != -ENODEV) + if ((ret != -ENODEV) && host->dev->of_node) return ret; dev_dbg(host->dev, "unable to get vmmc regulator %ld\n", PTR_ERR(mmc->supply.vmmc)); @@ -493,7 +493,7 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host) mmc->supply.vqmmc = devm_regulator_get_optional(host->dev, "vmmc_aux"); if (IS_ERR(mmc->supply.vqmmc)) { ret = PTR_ERR(mmc->supply.vqmmc); - if (ret != -ENODEV) + if ((ret != -ENODEV) && host->dev->of_node) return ret; dev_dbg(host->dev, "unable to get vmmc_aux regulator %ld\n", PTR_ERR(mmc->supply.vqmmc)); @@ -503,7 +503,7 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host) host->pbias = devm_regulator_get_optional(host->dev, "pbias"); if (IS_ERR(host->pbias)) { ret = PTR_ERR(host->pbias); - if (ret != -ENODEV) + if ((ret != -ENODEV) && host->dev->of_node) return ret; dev_dbg(host->dev, "unable to get pbias regulator %ld\n", PTR_ERR(host->pbias)); -- cgit 1.4.1 From 7a574557e62dc3d2d7ed55fa0b99e7d5bb403878 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Thu, 8 Oct 2015 19:28:01 +0530 Subject: drm/amdgpu: fix memory leak in amdgpu_vm_update_page_directory MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If amdgpu_ib_get() fails we returned the error code but we missed freeing ib. Cc: "Christian König" Cc: Jammy Zhou Cc: Chunming Zhou Cc: Alex Deucher Cc: "monk.liu" Signed-off-by: Sudip Mukherjee Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 1e14531353e0..53d551f2d839 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -455,8 +455,10 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev, return -ENOMEM; r = amdgpu_ib_get(ring, NULL, ndw * 4, ib); - if (r) + if (r) { + kfree(ib); return r; + } ib->length_dw = 0; /* walk over the address space and update the page directory */ -- cgit 1.4.1 From 5de76bfcb1e5ac66c57b99e8e193dacac7416f0e Mon Sep 17 00:00:00 2001 From: Nadav Haklai Date: Tue, 6 Oct 2015 03:22:35 +0200 Subject: mmc: sdhci-pxav3: remove broken clock base quirk for Armada 38x sdhci driver shci-pxav3 driver is enabling by default the SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN quirk. However this quirk is not required for Armada 38x and leads to wrong clock setting in the divider. Signed-off-by: Nadav Haklai Signed-off-by: Marcin Wojtas Cc: # v4.2 Reviewed-by: Gregory CLEMENT Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci-pxav3.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c index 946d37f94a31..976cddd6d157 100644 --- a/drivers/mmc/host/sdhci-pxav3.c +++ b/drivers/mmc/host/sdhci-pxav3.c @@ -135,6 +135,7 @@ static int armada_38x_quirks(struct platform_device *pdev, struct sdhci_pxa *pxa = pltfm_host->priv; struct resource *res; + host->quirks &= ~SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN; host->quirks |= SDHCI_QUIRK_MISSING_CAPS; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "conf-sdio3"); -- cgit 1.4.1 From fa7964147da57b2d40c2db2b6ed98fb7dc934bff Mon Sep 17 00:00:00 2001 From: Nadav Haklai Date: Tue, 6 Oct 2015 03:22:36 +0200 Subject: mmc: sdhci-pxav3: disable clock inversion for HS MMC cards According to 'FE-2946959' erratum the clock inversion option is needed to support slow frequencies when the card input hold time requirement is high. This setting is not required for high speed MMC and might cause timing violation. Signed-off-by: Nadav Haklai Cc: # v4.2 Reviewed-by: Gregory CLEMENT Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci-pxav3.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c index 976cddd6d157..89a9e49e2ea8 100644 --- a/drivers/mmc/host/sdhci-pxav3.c +++ b/drivers/mmc/host/sdhci-pxav3.c @@ -291,6 +291,9 @@ static void pxav3_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs) uhs == MMC_TIMING_UHS_DDR50) { reg_val &= ~SDIO3_CONF_CLK_INV; reg_val |= SDIO3_CONF_SD_FB_CLK; + } else if (uhs == MMC_TIMING_MMC_HS) { + reg_val &= ~SDIO3_CONF_CLK_INV; + reg_val &= ~SDIO3_CONF_SD_FB_CLK; } else { reg_val |= SDIO3_CONF_CLK_INV; reg_val &= ~SDIO3_CONF_SD_FB_CLK; -- cgit 1.4.1 From 2162d9f41e7c4778b96b8e3b97adcedbadc861f1 Mon Sep 17 00:00:00 2001 From: Marcin Wojtas Date: Tue, 6 Oct 2015 03:22:37 +0200 Subject: mmc: sdhci-pxav3: fix error handling of armada_38x_quirks In case of armada_38x_quirks error, all clocks should be cleaned-up, same as after mv_conf_mbus_windows failure. Signed-off-by: Marcin Wojtas Cc: # v4.2 Reviewed-by: Gregory CLEMENT Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci-pxav3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c index 89a9e49e2ea8..f5edf9d3a18a 100644 --- a/drivers/mmc/host/sdhci-pxav3.c +++ b/drivers/mmc/host/sdhci-pxav3.c @@ -402,7 +402,7 @@ static int sdhci_pxav3_probe(struct platform_device *pdev) if (of_device_is_compatible(np, "marvell,armada-380-sdhci")) { ret = armada_38x_quirks(pdev, host); if (ret < 0) - goto err_clk_get; + goto err_mbus_win; ret = mv_conf_mbus_windows(pdev, mv_mbus_dram_info()); if (ret < 0) goto err_mbus_win; -- cgit 1.4.1 From af951761d01c89eea8f1dcccf8010218e4b55817 Mon Sep 17 00:00:00 2001 From: "ludovic.desroches@atmel.com" Date: Thu, 17 Sep 2015 10:16:19 +0200 Subject: mmc: sdhci: add quirk SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST The Atmel sdhci device needs a new quirk. sdhci_set_clock set the Clock Control Register to 0 before computing the new value and writing it. It disables the internal clock which causes a reset mecanism. If we write the new value before this reset mecanism is done, it will prevent the stabilisation of the internal clock, so a delay is needed. This delay is about 2-3 cycles of the base clock. To be safe, a 1 ms delay is used. Signed-off-by: Ludovic Desroches Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci.c | 2 ++ drivers/mmc/host/sdhci.h | 5 +++++ 2 files changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 64b7fdbd1a9c..fbc7efdddcb5 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1160,6 +1160,8 @@ void sdhci_set_clock(struct sdhci_host *host, unsigned int clock) host->mmc->actual_clock = 0; sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL); + if (host->quirks2 & SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST) + mdelay(1); if (clock == 0) return; diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 7c02ff46c8ac..9d4aa31b683a 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -412,6 +412,11 @@ struct sdhci_host { #define SDHCI_QUIRK2_ACMD23_BROKEN (1<<14) /* Broken Clock divider zero in controller */ #define SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN (1<<15) +/* + * When internal clock is disabled, a delay is needed before modifying the + * SD clock frequency or enabling back the internal clock. + */ +#define SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST (1<<16) int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ -- cgit 1.4.1 From 88c6eb0e3b81a30514d21679735fa25d028c2299 Mon Sep 17 00:00:00 2001 From: "ludovic.desroches@atmel.com" Date: Thu, 17 Sep 2015 10:16:20 +0200 Subject: mmc: sdhci-of-at91: use SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirk The Atmel sdhci device needs the SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirk. Without it, the internal clock could never stabilised when changing the sd clock frequency. Signed-off-by: Ludovic Desroches Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci-of-at91.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c index d1556643a41d..a0f05de5409f 100644 --- a/drivers/mmc/host/sdhci-of-at91.c +++ b/drivers/mmc/host/sdhci-of-at91.c @@ -43,6 +43,7 @@ static const struct sdhci_ops sdhci_at91_sama5d2_ops = { static const struct sdhci_pltfm_data soc_data_sama5d2 = { .ops = &sdhci_at91_sama5d2_ops, + .quirks2 = SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST, }; static const struct of_device_id sdhci_at91_dt_match[] = { -- cgit 1.4.1 From e25303676e18a7947185a34e26dd08cf0c0ea573 Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Wed, 7 Oct 2015 13:50:43 -0700 Subject: cpufreq: acpi_cpufreq: prevent crash on reading freqdomain_cpus When freqdomain_cpus attribute is read from an offlined cpu, it will cause crash. This change prevents calling cpufreq_show_cpus when policy driver_data is NULL. Crash info: [ 170.814949] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018 [ 170.814990] IP: [] _find_next_bit.part.0+0x10/0x70 [ 170.815021] PGD 227d30067 PUD 229e56067 PMD 0 [ 170.815043] Oops: 0000 [#2] SMP [ 170.816022] CPU: 3 PID: 3121 Comm: cat Tainted: G D OE 4.3.0-rc3+ #33 ... ... [ 170.816657] Call Trace: [ 170.816672] [] ? find_next_bit+0x15/0x20 [ 170.816696] [] cpufreq_show_cpus+0x5c/0xd0 [ 170.816722] [] show_freqdomain_cpus+0x19/0x20 [acpi_cpufreq] [ 170.816749] [] show+0x3b/0x60 [ 170.816769] [] sysfs_kf_seq_show+0xbc/0x130 [ 170.816793] [] kernfs_seq_show+0x23/0x30 [ 170.816816] [] seq_read+0xec/0x390 [ 170.816837] [] kernfs_fop_read+0x10a/0x160 [ 170.816861] [] __vfs_read+0x37/0x100 [ 170.816883] [] ? security_file_permission+0xa0/0xc0 [ 170.816909] [] vfs_read+0x83/0x130 [ 170.816930] [] SyS_read+0x55/0xc0 ... ... [ 170.817185] ---[ end trace bc6eadf82b2b965a ]--- Signed-off-by: Srinivas Pandruvada Acked-by: Viresh Kumar Cc: 4.2+ # 4.2+ Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/acpi-cpufreq.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index 798277227de7..cec1ee2d2f74 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -149,6 +149,9 @@ static ssize_t show_freqdomain_cpus(struct cpufreq_policy *policy, char *buf) { struct acpi_cpufreq_data *data = policy->driver_data; + if (unlikely(!data)) + return -ENODEV; + return cpufreq_show_cpus(data->freqdomain_cpus, buf); } -- cgit 1.4.1 From 55582bccdc1e89ecc973c260d46e247df675d4df Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Wed, 7 Oct 2015 13:50:44 -0700 Subject: cpufreq: prevent lockup on reading scaling_available_frequencies When scaling_available_frequencies is read on an offlined cpu, then either lockup or junk values are displayed. This is caused by freed freq_table, which policy is using. Signed-off-by: Srinivas Pandruvada Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index ef5ed9470de9..25c4c15103a0 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1436,8 +1436,10 @@ static void cpufreq_offline_finish(unsigned int cpu) * since this is a core component, and is essential for the * subsequent light-weight ->init() to succeed. */ - if (cpufreq_driver->exit) + if (cpufreq_driver->exit) { cpufreq_driver->exit(policy); + policy->freq_table = NULL; + } } /** -- cgit 1.4.1 From a452744bcbf706eac65abb4c98496a366820c60a Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Thu, 1 Oct 2015 15:17:43 -0400 Subject: crash in md-raid1 and md-raid10 due to incorrect list manipulation The commit 55ce74d4bfe1b9444436264c637f39a152d1e5ac (md/raid1: ensure device failure recorded before write request returns) is causing crash in the LVM2 testsuite test shell/lvchange-raid.sh. For me the crash is 100% reproducible. The reason for the crash is that the newly added code in raid1d moves the list from conf->bio_end_io_list to tmp, then tests if tmp is non-empty and then incorrectly pops the bio from conf->bio_end_io_list (which is empty because the list was alrady moved). Raid-10 has a similar bug. Kernel Fault: Code=15 regs=000000006ccb8640 (Addr=0000000100000000) CPU: 3 PID: 1930 Comm: mdX_raid1 Not tainted 4.2.0-rc5-bisect+ #35 task: 000000006cc1f258 ti: 000000006ccb8000 task.ti: 000000006ccb8000 YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI PSW: 00001000000001001111111000001111 Not tainted r00-03 000000ff0804fe0f 000000001059d000 000000001059f818 000000007f16be38 r04-07 000000001059d000 000000007f16be08 0000000000200200 0000000000000001 r08-11 000000006ccb8260 000000007b7934d0 0000000000000001 0000000000000000 r12-15 000000004056f320 0000000000000000 0000000000013dd0 0000000000000000 r16-19 00000000f0d00ae0 0000000000000000 0000000000000000 0000000000000001 r20-23 000000000800000f 0000000042200390 0000000000000000 0000000000000000 r24-27 0000000000000001 000000000800000f 000000007f16be08 000000001059d000 r28-31 0000000100000000 000000006ccb8560 000000006ccb8640 0000000000000000 sr00-03 0000000000249800 0000000000000000 0000000000000000 0000000000249800 sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000 IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001059f61c 000000001059f620 IIR: 0f8010c6 ISR: 0000000000000000 IOR: 0000000100000000 CPU: 3 CR30: 000000006ccb8000 CR31: 0000000000000000 ORIG_R28: 000000001059d000 IAOQ[0]: call_bio_endio+0x34/0x1a8 [raid1] IAOQ[1]: call_bio_endio+0x38/0x1a8 [raid1] RP(r2): raid_end_bio_io+0x88/0x168 [raid1] Backtrace: [<000000001059f818>] raid_end_bio_io+0x88/0x168 [raid1] [<00000000105a4f64>] raid1d+0x144/0x1640 [raid1] [<000000004017fd5c>] kthread+0x144/0x160 Signed-off-by: Mikulas Patocka Fixes: 55ce74d4bfe1 ("md/raid1: ensure device failure recorded before write request returns.") Fixes: 95af587e95aa ("md/raid10: ensure device failure recorded before write request returns.") Signed-off-by: NeilBrown --- drivers/md/raid1.c | 4 ++-- drivers/md/raid10.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 049df6c4a8cc..ddd8a5f572aa 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2382,8 +2382,8 @@ static void raid1d(struct md_thread *thread) } spin_unlock_irqrestore(&conf->device_lock, flags); while (!list_empty(&tmp)) { - r1_bio = list_first_entry(&conf->bio_end_io_list, - struct r1bio, retry_list); + r1_bio = list_first_entry(&tmp, struct r1bio, + retry_list); list_del(&r1_bio->retry_list); raid_end_bio_io(r1_bio); } diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 7c99a4037715..9f69dc526f8c 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2688,8 +2688,8 @@ static void raid10d(struct md_thread *thread) } spin_unlock_irqrestore(&conf->device_lock, flags); while (!list_empty(&tmp)) { - r10_bio = list_first_entry(&conf->bio_end_io_list, - struct r10bio, retry_list); + r10_bio = list_first_entry(&tmp, struct r10bio, + retry_list); list_del(&r10_bio->retry_list); raid_end_bio_io(r10_bio); } -- cgit 1.4.1 From 621bd0f6982badd6483acb191eb7b6226a578328 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 29 Sep 2015 09:56:53 +0200 Subject: drm: Fix locking for sysfs dpms file With atomic drivers we need to make sure that (at least in general) property reads hold the right locks. But the legacy dpms property is special and can be read locklessly. Since userspace loves to just randomly look at that all the time (like with "status") do that. To make it clear that we play tricks use the READ_ONCE compiler barrier (and also for paranoia). Note that there's not really anything bad going on since even with the new atomic paths we eventually end up not chasing any pointers (and hence possibly freed memory and other fun stuff). The locking WARNING has been added in commit 88a48e297b3a3bac6022c03babfb038f1a886cea Author: Rob Clark Date: Thu Dec 18 16:01:50 2014 -0500 drm: add atomic properties but since drivers are converting not everyone will have seen this from the start. Jens reported this and submitted a patch to just grab the mode_config.connection_mutex, but we can do a bit better. v2: Remove unused variables I failed to git add for real. Reference: http://mid.gmane.org/20150928194822.GA3930@kernel.dk Reported-by: Jens Axboe Tested-by: Jens Axboe Cc: Rob Clark Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_sysfs.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index 0f6cd33b531f..684bd4a13843 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -235,18 +235,12 @@ static ssize_t dpms_show(struct device *device, char *buf) { struct drm_connector *connector = to_drm_connector(device); - struct drm_device *dev = connector->dev; - uint64_t dpms_status; - int ret; + int dpms; - ret = drm_object_property_get_value(&connector->base, - dev->mode_config.dpms_property, - &dpms_status); - if (ret) - return 0; + dpms = READ_ONCE(connector->dpms); return snprintf(buf, PAGE_SIZE, "%s\n", - drm_get_dpms_name((int)dpms_status)); + drm_get_dpms_name(dpms)); } static ssize_t enabled_show(struct device *device, -- cgit 1.4.1 From 2bffa1503c5c06192eb1459180fac4416575a966 Mon Sep 17 00:00:00 2001 From: Joe Thornber Date: Fri, 9 Oct 2015 14:03:38 +0100 Subject: dm cache: fix NULL pointer when switching from cleaner policy The cleaner policy doesn't make use of the per cache block hint space in the metadata (unlike the other policies). When switching from the cleaner policy to mq or smq a NULL pointer crash (in dm_tm_new_block) was observed. The crash was caused by bugs in dm-cache-metadata.c when trying to skip creation of the hint btree. The minimal fix is to change hint size for the cleaner policy to 4 bytes (only hint size supported). Signed-off-by: Joe Thornber Signed-off-by: Mike Snitzer Cc: stable@vger.kernel.org --- drivers/md/dm-cache-policy-cleaner.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/dm-cache-policy-cleaner.c b/drivers/md/dm-cache-policy-cleaner.c index 240c9f0e85e7..8a096456579b 100644 --- a/drivers/md/dm-cache-policy-cleaner.c +++ b/drivers/md/dm-cache-policy-cleaner.c @@ -436,7 +436,7 @@ static struct dm_cache_policy *wb_create(dm_cblock_t cache_size, static struct dm_cache_policy_type wb_policy_type = { .name = "cleaner", .version = {1, 0, 0}, - .hint_size = 0, + .hint_size = 4, .owner = THIS_MODULE, .create = wb_create }; -- cgit 1.4.1 From cbbc00be2ce3af5d708226a9563fa27cb4e6b6b8 Mon Sep 17 00:00:00 2001 From: Jiang Liu Date: Fri, 9 Oct 2015 22:07:31 +0800 Subject: iommu/amd: Prevent binding other PCI drivers to IOMMU PCI devices AMD IOMMU driver makes use of IOMMU PCI devices, so prevent binding other PCI drivers to IOMMU PCI devices. This fixes a bug reported by Boris that system suspend/resume gets broken on AMD platforms. For more information, please refer to: https://lkml.org/lkml/2015/9/26/89 Fixes: 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()") Signed-off-by: Jiang Liu Cc: Borislav Petkov Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu_init.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 5ef347a13cb5..1b066e7d144d 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -1256,6 +1256,9 @@ static int iommu_init_pci(struct amd_iommu *iommu) if (!iommu->dev) return -ENODEV; + /* Prevent binding other PCI device drivers to IOMMU devices */ + iommu->dev->match_driver = false; + pci_read_config_dword(iommu->dev, cap_ptr + MMIO_CAP_HDR_OFFSET, &iommu->cap); pci_read_config_dword(iommu->dev, cap_ptr + MMIO_RANGE_OFFSET, -- cgit 1.4.1 From 5adad9915472e180712030d730cdc476c6f8a60b Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 9 Oct 2015 16:23:33 +0200 Subject: iommu/amd: Fix NULL pointer deref on device detach When a device group is detached from its domain, the iommu core code calls into the iommu driver to detach each device individually. Before this functionality went into the iommu core code, it was implemented in the drivers, also in the AMD IOMMU driver as the device alias handling code. This code is still present, as there might be aliases that don't exist as real PCI devices (and are therefore invisible to the iommu core code). Unfortunatly it might happen now, that a device is unbound multiple times from its domain, first by the alias handling code and then by the iommu core code (or vice verca). This ends up in the do_detach function which dereferences the dev_data->domain pointer. When the device is already detached, this pointer is NULL and we get a kernel oops. Removing the alias code completly is not an option, as that would also remove the code which handles invisible aliases. The code could be simplified, but this is too big of a change outside the merge window. For now, just check the dev_data->domain pointer in do_detach and bail out if it is NULL. Reported-by: Andreas Hartmann Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers') diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index f82060e778a2..08d2775887f7 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2006,6 +2006,15 @@ static void do_detach(struct iommu_dev_data *dev_data) { struct amd_iommu *iommu; + /* + * First check if the device is still attached. It might already + * be detached from its domain because the generic + * iommu_detach_group code detached it and we try again here in + * our alias handling. + */ + if (!dev_data->domain) + return; + iommu = amd_iommu_rlookup_table[dev_data->devid]; /* decrease reference counters */ -- cgit 1.4.1 From b0d3cc011e532d8c9db76cf717bcafa53c135595 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Thu, 8 Oct 2015 18:05:41 -0400 Subject: dm snapshot: add new persistent store option to support overflow Commit 76c44f6d80 introduced the possibly for "Overflow" to be reported by the snapshot device's status. Older userspace (e.g. lvm2) does not handle the "Overflow" status response. Fix this incompatibility by requiring newer userspace code, that can cope with "Overflow", request the persistent store with overflow support by using "PO" (Persistent with Overflow) for the snapshot store type. Reported-by: Zdenek Kabelac Fixes: 76c44f6d80 ("dm snapshot: don't invalidate on-disk image on snapshot write overflow") Reviewed-by: Mikulas Patocka Signed-off-by: Mike Snitzer --- Documentation/device-mapper/snapshot.txt | 10 +++++++--- drivers/md/dm-exception-store.c | 6 +++--- drivers/md/dm-exception-store.h | 5 +++-- drivers/md/dm-snap-persistent.c | 17 ++++++++++++++--- drivers/md/dm-snap-transient.c | 3 +-- drivers/md/dm-snap.c | 14 +++++++++----- 6 files changed, 37 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/Documentation/device-mapper/snapshot.txt b/Documentation/device-mapper/snapshot.txt index 0d5bc46dc167..ad6949bff2e3 100644 --- a/Documentation/device-mapper/snapshot.txt +++ b/Documentation/device-mapper/snapshot.txt @@ -41,9 +41,13 @@ useless and be disabled, returning errors. So it is important to monitor the amount of free space and expand the before it fills up. is P (Persistent) or N (Not persistent - will not survive -after reboot). -The difference is that for transient snapshots less metadata must be -saved on disk - they can be kept in memory by the kernel. +after reboot). O (Overflow) can be added as a persistent store option +to allow userspace to advertise its support for seeing "Overflow" in the +snapshot status. So supported store types are "P", "PO" and "N". + +The difference between persistent and transient is with transient +snapshots less metadata must be saved on disk - they can be kept in +memory by the kernel. * snapshot-merge diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index ebaa4f803eec..192bb8beeb6b 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -203,7 +203,7 @@ int dm_exception_store_create(struct dm_target *ti, int argc, char **argv, return -EINVAL; } - tmp_store = kmalloc(sizeof(*tmp_store), GFP_KERNEL); + tmp_store = kzalloc(sizeof(*tmp_store), GFP_KERNEL); if (!tmp_store) { ti->error = "Exception store allocation failed"; return -ENOMEM; @@ -215,7 +215,7 @@ int dm_exception_store_create(struct dm_target *ti, int argc, char **argv, else if (persistent == 'N') type = get_type("N"); else { - ti->error = "Persistent flag is not P or N"; + ti->error = "Exception store type is not P or N"; r = -EINVAL; goto bad_type; } @@ -233,7 +233,7 @@ int dm_exception_store_create(struct dm_target *ti, int argc, char **argv, if (r) goto bad; - r = type->ctr(tmp_store, 0, NULL); + r = type->ctr(tmp_store, (strlen(argv[0]) > 1 ? &argv[0][1] : NULL)); if (r) { ti->error = "Exception store type constructor failed"; goto bad; diff --git a/drivers/md/dm-exception-store.h b/drivers/md/dm-exception-store.h index 0b2536247cf5..fae34e7a0b1e 100644 --- a/drivers/md/dm-exception-store.h +++ b/drivers/md/dm-exception-store.h @@ -42,8 +42,7 @@ struct dm_exception_store_type { const char *name; struct module *module; - int (*ctr) (struct dm_exception_store *store, - unsigned argc, char **argv); + int (*ctr) (struct dm_exception_store *store, char *options); /* * Destroys this object when you've finished with it. @@ -123,6 +122,8 @@ struct dm_exception_store { unsigned chunk_shift; void *context; + + bool userspace_supports_overflow; }; /* diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index bf71583296f7..aeacad9be51d 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -7,6 +7,7 @@ #include "dm-exception-store.h" +#include #include #include #include @@ -843,8 +844,7 @@ static void persistent_drop_snapshot(struct dm_exception_store *store) DMWARN("write header failed"); } -static int persistent_ctr(struct dm_exception_store *store, - unsigned argc, char **argv) +static int persistent_ctr(struct dm_exception_store *store, char *options) { struct pstore *ps; @@ -873,6 +873,16 @@ static int persistent_ctr(struct dm_exception_store *store, return -ENOMEM; } + if (options) { + char overflow = toupper(options[0]); + if (overflow == 'O') + store->userspace_supports_overflow = true; + else { + DMERR("Unsupported persistent store option: %s", options); + return -EINVAL; + } + } + store->context = ps; return 0; @@ -888,7 +898,8 @@ static unsigned persistent_status(struct dm_exception_store *store, case STATUSTYPE_INFO: break; case STATUSTYPE_TABLE: - DMEMIT(" P %llu", (unsigned long long)store->chunk_size); + DMEMIT(" %s %llu", store->userspace_supports_overflow ? "PO" : "P", + (unsigned long long)store->chunk_size); } return sz; diff --git a/drivers/md/dm-snap-transient.c b/drivers/md/dm-snap-transient.c index 1ce9a2586e41..9b7c8c8049d6 100644 --- a/drivers/md/dm-snap-transient.c +++ b/drivers/md/dm-snap-transient.c @@ -70,8 +70,7 @@ static void transient_usage(struct dm_exception_store *store, *metadata_sectors = 0; } -static int transient_ctr(struct dm_exception_store *store, - unsigned argc, char **argv) +static int transient_ctr(struct dm_exception_store *store, char *options) { struct transient_c *tc; diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index c0bcd6516dfe..c06b74e91cd6 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -1098,7 +1098,7 @@ static void stop_merge(struct dm_snapshot *s) } /* - * Construct a snapshot mapping:

+ * Construct a snapshot mapping: */ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv) { @@ -1302,6 +1302,7 @@ static void __handover_exceptions(struct dm_snapshot *snap_src, u.store_swap = snap_dest->store; snap_dest->store = snap_src->store; + snap_dest->store->userspace_supports_overflow = u.store_swap->userspace_supports_overflow; snap_src->store = u.store_swap; snap_dest->store->snap = snap_dest; @@ -1739,8 +1740,11 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio) pe = __find_pending_exception(s, pe, chunk); if (!pe) { - s->snapshot_overflowed = 1; - DMERR("Snapshot overflowed: Unable to allocate exception."); + if (s->store->userspace_supports_overflow) { + s->snapshot_overflowed = 1; + DMERR("Snapshot overflowed: Unable to allocate exception."); + } else + __invalidate_snapshot(s, -ENOMEM); r = -EIO; goto out_unlock; } @@ -2365,7 +2369,7 @@ static struct target_type origin_target = { static struct target_type snapshot_target = { .name = "snapshot", - .version = {1, 14, 0}, + .version = {1, 15, 0}, .module = THIS_MODULE, .ctr = snapshot_ctr, .dtr = snapshot_dtr, @@ -2379,7 +2383,7 @@ static struct target_type snapshot_target = { static struct target_type merge_target = { .name = dm_snapshot_merge_target_name, - .version = {1, 3, 0}, + .version = {1, 4, 0}, .module = THIS_MODULE, .ctr = snapshot_ctr, .dtr = snapshot_dtr, -- cgit 1.4.1 From 2239b76b0b1782160d5ca91ea1653dd67aa37e8a Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 29 Sep 2015 12:08:35 +1000 Subject: drm/nouveau/bios: translate devinit pri/sec i2c bus to internal identifiers fdo#92013. Regression from "i2c: transition pad/ports away from being based on nvkm_object" Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c index 65af31441e9c..a7d69ce7abc1 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c @@ -267,6 +267,12 @@ init_i2c(struct nvbios_init *init, int index) index = NVKM_I2C_BUS_PRI; if (init->outp && init->outp->i2c_upper_default) index = NVKM_I2C_BUS_SEC; + } else + if (index == 0x80) { + index = NVKM_I2C_BUS_PRI; + } else + if (index == 0x81) { + index = NVKM_I2C_BUS_SEC; } bus = nvkm_i2c_bus_find(i2c, index); -- cgit 1.4.1 From 5102ec3e99e271b3934a1e00bb52a2545eb7dbc5 Mon Sep 17 00:00:00 2001 From: Ilia Mirkin Date: Thu, 17 Sep 2015 22:31:20 -0400 Subject: drm/nouveau/display: allow up to 16k width/height for fermi+ Signed-off-by: Ilia Mirkin Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_display.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index cc6c228e11c8..e905c00acf1a 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -469,9 +469,13 @@ nouveau_display_create(struct drm_device *dev) if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { dev->mode_config.max_width = 4096; dev->mode_config.max_height = 4096; - } else { + } else + if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) { dev->mode_config.max_width = 8192; dev->mode_config.max_height = 8192; + } else { + dev->mode_config.max_width = 16384; + dev->mode_config.max_height = 16384; } dev->mode_config.preferred_depth = 24; -- cgit 1.4.1 From 953132b56a43c707979df8da7bfd00931bdfe695 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Mon, 14 Sep 2015 21:19:57 +0200 Subject: drm/nouveau/nouveau: Disable AGP for SiS 761 SiS 761 chipset does not support AGP cards but has AGP capability (for the onboard video). At least PC Chips A31G board using this chipset has an AGP-like AGPro slot that's wired to the PCI bus. Enabling AGP will fail (GPU lockup and software fbcon, X11 hangs). Add support for matching just the host bridge in nvkm_device_agp_quirks and add entry for SiS 761 with mode 0 (AGP disabled). Signed-off-by: Ondrej Zary Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c index 814cb51cc873..385a90f91ed6 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c @@ -35,6 +35,8 @@ static const struct nvkm_device_agp_quirk nvkm_device_agp_quirks[] = { /* VIA Apollo PRO133x / GeForce FX 5600 Ultra - fdo#20341 */ { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_NVIDIA, 0x0311, 2 }, + /* SiS 761 does not support AGP cards, use PCI mode */ + { PCI_VENDOR_ID_SI, 0x0761, PCI_ANY_ID, PCI_ANY_ID, 0 }, {}, }; @@ -137,8 +139,10 @@ nvkm_agp_ctor(struct nvkm_pci *pci) while (quirk->hostbridge_vendor) { if (info.device->vendor == quirk->hostbridge_vendor && info.device->device == quirk->hostbridge_device && - pci->pdev->vendor == quirk->chip_vendor && - pci->pdev->device == quirk->chip_device) { + (quirk->chip_vendor == (u16)PCI_ANY_ID || + pci->pdev->vendor == quirk->chip_vendor) && + (quirk->chip_device == (u16)PCI_ANY_ID || + pci->pdev->device == quirk->chip_device)) { nvkm_info(subdev, "forcing default agp mode to %dX, " "use NvAGP= to override\n", quirk->mode); -- cgit 1.4.1 From f231976c2e8964ceaa9250e57d27c35ff03825c2 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 2 Oct 2015 14:03:19 +1000 Subject: drm/nouveau/fbcon: take runpm reference when userspace has an open fd We need to do this in order to prevent accesses to the device while it's powered down. Userspace may have an mmap of the fb, and there's no good way (that I know of) to prevent it from touching the device otherwise. This fixes some nasty races between runpm and plymouth on some systems, which result in the GPU getting very upset and hanging the boot. Signed-off-by: Ben Skeggs Cc: stable@vger.kernel.org --- drivers/gpu/drm/nouveau/nouveau_fbcon.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index 2791701685dc..59f27e774acb 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -178,8 +178,30 @@ nouveau_fbcon_sync(struct fb_info *info) return 0; } +static int +nouveau_fbcon_open(struct fb_info *info, int user) +{ + struct nouveau_fbdev *fbcon = info->par; + struct nouveau_drm *drm = nouveau_drm(fbcon->dev); + int ret = pm_runtime_get_sync(drm->dev->dev); + if (ret < 0 && ret != -EACCES) + return ret; + return 0; +} + +static int +nouveau_fbcon_release(struct fb_info *info, int user) +{ + struct nouveau_fbdev *fbcon = info->par; + struct nouveau_drm *drm = nouveau_drm(fbcon->dev); + pm_runtime_put(drm->dev->dev); + return 0; +} + static struct fb_ops nouveau_fbcon_ops = { .owner = THIS_MODULE, + .fb_open = nouveau_fbcon_open, + .fb_release = nouveau_fbcon_release, .fb_check_var = drm_fb_helper_check_var, .fb_set_par = drm_fb_helper_set_par, .fb_fillrect = nouveau_fbcon_fillrect, @@ -195,6 +217,8 @@ static struct fb_ops nouveau_fbcon_ops = { static struct fb_ops nouveau_fbcon_sw_ops = { .owner = THIS_MODULE, + .fb_open = nouveau_fbcon_open, + .fb_release = nouveau_fbcon_release, .fb_check_var = drm_fb_helper_check_var, .fb_set_par = drm_fb_helper_set_par, .fb_fillrect = drm_fb_helper_cfb_fillrect, -- cgit 1.4.1 From 25d295882a1adfcdaaad85369289677b87c7c8f0 Mon Sep 17 00:00:00 2001 From: Ilia Mirkin Date: Thu, 1 Oct 2015 23:41:21 -0400 Subject: drm/nouveau/bios: fix OF loading Currently OF bios load fails for a few reasons: - checksum failure - bios size too small - no PCIR header - bios length not a multiple of 4 In this change, we resolve all of the above by ignoring any checksum failures (since OF VBIOS tends not to have a checksum), and faking the PCIR data when loading from OF. Signed-off-by: Ilia Mirkin Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h | 3 +++ drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c | 27 ++++++++++++++-------- .../gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c | 17 ++++++++++++-- 3 files changed, 36 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h index e0ec2a6b7b79..212800ecdce9 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h @@ -8,7 +8,10 @@ struct nvbios_source { void *(*init)(struct nvkm_bios *, const char *); void (*fini)(void *); u32 (*read)(void *, u32 offset, u32 length, struct nvkm_bios *); + u32 (*size)(void *); bool rw; + bool ignore_checksum; + bool no_pcir; }; int nvbios_extend(struct nvkm_bios *, u32 length); diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c index 792f017525f6..b2557e87afdd 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadow.c @@ -45,7 +45,7 @@ shadow_fetch(struct nvkm_bios *bios, struct shadow *mthd, u32 upto) u32 read = mthd->func->read(data, start, limit - start, bios); bios->size = start + read; } - return bios->size >= limit; + return bios->size >= upto; } static int @@ -55,14 +55,22 @@ shadow_image(struct nvkm_bios *bios, int idx, u32 offset, struct shadow *mthd) struct nvbios_image image; int score = 1; - if (!shadow_fetch(bios, mthd, offset + 0x1000)) { - nvkm_debug(subdev, "%08x: header fetch failed\n", offset); - return 0; - } + if (mthd->func->no_pcir) { + image.base = 0; + image.type = 0; + image.size = mthd->func->size(mthd->data); + image.last = 1; + } else { + if (!shadow_fetch(bios, mthd, offset + 0x1000)) { + nvkm_debug(subdev, "%08x: header fetch failed\n", + offset); + return 0; + } - if (!nvbios_image(bios, idx, &image)) { - nvkm_debug(subdev, "image %d invalid\n", idx); - return 0; + if (!nvbios_image(bios, idx, &image)) { + nvkm_debug(subdev, "image %d invalid\n", idx); + return 0; + } } nvkm_debug(subdev, "%08x: type %02x, %d bytes\n", image.base, image.type, image.size); @@ -74,7 +82,8 @@ shadow_image(struct nvkm_bios *bios, int idx, u32 offset, struct shadow *mthd) switch (image.type) { case 0x00: - if (nvbios_checksum(&bios->data[image.base], image.size)) { + if (!mthd->func->ignore_checksum && + nvbios_checksum(&bios->data[image.base], image.size)) { nvkm_debug(subdev, "%08x: checksum failed\n", image.base); if (mthd->func->rw) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c index bd60d7dd09f5..4bf486b57101 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c @@ -21,6 +21,7 @@ * */ #include "priv.h" + #include #if defined(__powerpc__) @@ -33,17 +34,26 @@ static u32 of_read(void *data, u32 offset, u32 length, struct nvkm_bios *bios) { struct priv *priv = data; - if (offset + length <= priv->size) { + if (offset < priv->size) { + length = min_t(u32, length, priv->size - offset); memcpy_fromio(bios->data + offset, priv->data + offset, length); return length; } return 0; } +static u32 +of_size(void *data) +{ + struct priv *priv = data; + return priv->size; +} + static void * of_init(struct nvkm_bios *bios, const char *name) { - struct pci_dev *pdev = bios->subdev.device->func->pci(bios->subdev.device)->pdev; + struct nvkm_device *device = bios->subdev.device; + struct pci_dev *pdev = device->func->pci(device)->pdev; struct device_node *dn; struct priv *priv; if (!(dn = pci_device_to_OF_node(pdev))) @@ -62,7 +72,10 @@ nvbios_of = { .init = of_init, .fini = (void(*)(void *))kfree, .read = of_read, + .size = of_size, .rw = false, + .ignore_checksum = true, + .no_pcir = true, }; #else const struct nvbios_source -- cgit 1.4.1 From ed7d78b2da32198ca4c70172e3b63c6b3e2c570b Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Mon, 12 Oct 2015 01:49:39 -0700 Subject: drm/vmwgfx: Fix kernel NULL pointer dereference on older hardware The commit "drm/vmwgfx: Fix up user_dmabuf refcounting", while fixing a kernel crash introduced a NULL pointer dereference on older hardware. Fix this. Cc: Signed-off-by: Thomas Hellstrom Reviewed-by: Sinclair Yeh Reviewed-by: Brian Paul --- drivers/gpu/drm/vmwgfx/vmwgfx_surface.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c index 64b50409fa07..03f63c749c02 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -657,7 +657,8 @@ static void vmw_user_surface_base_release(struct ttm_base_object **p_base) struct vmw_resource *res = &user_srf->srf.res; *p_base = NULL; - ttm_base_object_unref(&user_srf->backup_base); + if (user_srf->backup_base) + ttm_base_object_unref(&user_srf->backup_base); vmw_resource_unreference(&res); } -- cgit 1.4.1 From a2a678ed4d0d6cb5f36dbabc411d60d9a4f9c435 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Tue, 13 Oct 2015 13:33:08 +0530 Subject: dm snapshot persistent: fix missing cleanup in persistent_ctr error path If an unsupported option is given then the early return from persistent_ctr() leaked memory allocated for the 'pstore' and never destroyed the 'metadata_wq'. Fixes: b0d3cc011e53 ("dm snapshot: add new persistent store option to support overflow") Signed-off-by: Sudip Mukherjee Signed-off-by: Mike Snitzer --- drivers/md/dm-snap-persistent.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index aeacad9be51d..117a05e40090 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -847,6 +847,7 @@ static void persistent_drop_snapshot(struct dm_exception_store *store) static int persistent_ctr(struct dm_exception_store *store, char *options) { struct pstore *ps; + int r; /* allocate the pstore */ ps = kzalloc(sizeof(*ps), GFP_KERNEL); @@ -868,9 +869,9 @@ static int persistent_ctr(struct dm_exception_store *store, char *options) ps->metadata_wq = alloc_workqueue("ksnaphd", WQ_MEM_RECLAIM, 0); if (!ps->metadata_wq) { - kfree(ps); DMERR("couldn't start header metadata update thread"); - return -ENOMEM; + r = -ENOMEM; + goto err_workqueue; } if (options) { @@ -879,13 +880,21 @@ static int persistent_ctr(struct dm_exception_store *store, char *options) store->userspace_supports_overflow = true; else { DMERR("Unsupported persistent store option: %s", options); - return -EINVAL; + r = -EINVAL; + goto err_options; } } store->context = ps; return 0; + +err_options: + destroy_workqueue(ps->metadata_wq); +err_workqueue: + kfree(ps); + + return r; } static unsigned persistent_status(struct dm_exception_store *store, -- cgit 1.4.1 From ba30670f4d5292c4e7f7980bbd5071f7c4794cdd Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 13 Oct 2015 12:04:28 -0400 Subject: dm thin: fix missing pool reference count decrement in pool_ctr error path Fixes: ac8c3f3df ("dm thin: generate event when metadata threshold passed") Signed-off-by: Mike Snitzer Cc: stable@vger.kernel.org # 3.10+ --- drivers/md/dm-thin.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 6fcbfb063366..3897b90bd462 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -3201,7 +3201,7 @@ static int pool_ctr(struct dm_target *ti, unsigned argc, char **argv) metadata_low_callback, pool); if (r) - goto out_free_pt; + goto out_flags_changed; pt->callbacks.congested_fn = pool_is_congested; dm_table_add_target_callbacks(ti->table, &pt->callbacks); -- cgit 1.4.1 From 0b5c9279e568d90903acedc2b9b832d8d78e8288 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Sun, 11 Oct 2015 18:49:42 -0500 Subject: IB/ipoib: For sendonly join free the multicast group on leave When we leave the multicast group on expiration of a neighbor we do not free the mcast structure. This results in a memory leak that causes ib_dealloc_pd to fail and print a WARN_ON message and backtrace. Fixes: bd99b2e05c4d (IB/ipoib: Expire sendonly multicast joins) Signed-off-by: Christoph Lameter Tested-by: Sagi Grimberg Signed-off-by: Doug Ledford --- drivers/infiniband/ulp/ipoib/ipoib.h | 1 + drivers/infiniband/ulp/ipoib/ipoib_main.c | 4 +++- drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 2 +- 3 files changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h index 4cd5428a2399..edc5b8565d6d 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib.h +++ b/drivers/infiniband/ulp/ipoib/ipoib.h @@ -495,6 +495,7 @@ void ipoib_dev_cleanup(struct net_device *dev); void ipoib_mcast_join_task(struct work_struct *work); void ipoib_mcast_carrier_on_task(struct work_struct *work); void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb); +void ipoib_mcast_free(struct ipoib_mcast *mc); void ipoib_mcast_restart_task(struct work_struct *work); int ipoib_mcast_start_thread(struct net_device *dev); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index f74316e679d2..babba05d7a0e 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1207,8 +1207,10 @@ static void __ipoib_reap_neigh(struct ipoib_dev_priv *priv) out_unlock: spin_unlock_irqrestore(&priv->lock, flags); - list_for_each_entry_safe(mcast, tmcast, &remove_list, list) + list_for_each_entry_safe(mcast, tmcast, &remove_list, list) { ipoib_mcast_leave(dev, mcast); + ipoib_mcast_free(mcast); + } } static void ipoib_reap_neigh(struct work_struct *work) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 136cbefe00f8..d750a86042f3 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -106,7 +106,7 @@ static void __ipoib_mcast_schedule_join_thread(struct ipoib_dev_priv *priv, queue_delayed_work(priv->wq, &priv->mcast_task, 0); } -static void ipoib_mcast_free(struct ipoib_mcast *mcast) +void ipoib_mcast_free(struct ipoib_mcast *mcast) { struct net_device *dev = mcast->dev; int tx_dropped = 0; -- cgit 1.4.1 From a98f1b78ecf325bf29c9d3d1eb38cbc9340000af Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Tue, 13 Oct 2015 16:10:28 +0200 Subject: PM / Domains: Fix validation of latency constraints in genpd governor Commit ba2bbfbf6307 (PM / Domains: Remove intermediate states from the power off sequence) changed the power off sequence in genpd. That also required some updates regarding the validation of latency constraints in the genpd governor. Unfortunate that wasn't covered, so let's fix this. From a runtime PM and latency point of view, we need to consider the worst case scenario while validating latency constraints. That's typically when a call to pm_runtime_get_sync() needs to wait for a ongoing runtime suspend operation to be carried out, as it then also needs to wait for the device to be runtime resumed again. The above mentioned commit made the genpd governor's ->stop_ok() callback responsible of validating genpd's device's runtime suspend/resume latency. In other words, the constraint needs to be validated towards the relevant latencies present in genpd's ->runtime_suspend|resume() callbacks. Earlier, that included latencies from the ->stop|start() callbacks, but as ->save|restore_state() are now also being invoked from genpd's ->runtime_suspend|resume() and to comply with the worst case scenario, let's take also those latencies into account. Fixes: ba2bbfbf6307 (PM / Domains: Remove intermediate states from the power off sequence) Signed-off-by: Ulf Hansson Signed-off-by: Rafael J. Wysocki --- drivers/base/power/domain_governor.c | 22 ++++++---------------- 1 file changed, 6 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c index 2a4154a09e4d..85e17bacc834 100644 --- a/drivers/base/power/domain_governor.c +++ b/drivers/base/power/domain_governor.c @@ -77,13 +77,16 @@ static bool default_stop_ok(struct device *dev) dev_update_qos_constraint); if (constraint_ns > 0) { - constraint_ns -= td->start_latency_ns; + constraint_ns -= td->save_state_latency_ns + + td->stop_latency_ns + + td->start_latency_ns + + td->restore_state_latency_ns; if (constraint_ns == 0) return false; } td->effective_constraint_ns = constraint_ns; - td->cached_stop_ok = constraint_ns > td->stop_latency_ns || - constraint_ns == 0; + td->cached_stop_ok = constraint_ns >= 0; + /* * The children have been suspended already, so we don't need to take * their stop latencies into account here. @@ -126,18 +129,6 @@ static bool default_power_down_ok(struct dev_pm_domain *pd) off_on_time_ns = genpd->power_off_latency_ns + genpd->power_on_latency_ns; - /* - * It doesn't make sense to remove power from the domain if saving - * the state of all devices in it and the power off/power on operations - * take too much time. - * - * All devices in this domain have been stopped already at this point. - */ - list_for_each_entry(pdd, &genpd->dev_list, list_node) { - if (pdd->dev->driver) - off_on_time_ns += - to_gpd_data(pdd)->td.save_state_latency_ns; - } min_off_time_ns = -1; /* @@ -193,7 +184,6 @@ static bool default_power_down_ok(struct dev_pm_domain *pd) * constraint_ns cannot be negative here, because the device has * been suspended. */ - constraint_ns -= td->restore_state_latency_ns; if (constraint_ns <= off_on_time_ns) return false; -- cgit 1.4.1 From a487c03fa28286d0de42558da1aa57d82d54fc4d Mon Sep 17 00:00:00 2001 From: Dudley Du Date: Mon, 12 Oct 2015 10:16:16 -0700 Subject: Input: cyapa - fix the copy paste error on electrodes_rx value Fix the copy paste error on the electrodes_rx value set code which will cause the electrodes_rx value be always set to the value of electrodes_y. Reported-by: Sudip Mukherjee Signed-off-by: Dudley Du Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/cyapa_gen6.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/input/mouse/cyapa_gen6.c b/drivers/input/mouse/cyapa_gen6.c index 5f191071d44a..e4eb048d1bf6 100644 --- a/drivers/input/mouse/cyapa_gen6.c +++ b/drivers/input/mouse/cyapa_gen6.c @@ -241,14 +241,10 @@ static int cyapa_gen6_read_sys_info(struct cyapa *cyapa) memcpy(&cyapa->product_id[13], &resp_data[62], 2); cyapa->product_id[15] = '\0'; + /* Get the number of Rx electrodes. */ rotat_align = resp_data[68]; - if (rotat_align) { - cyapa->electrodes_rx = cyapa->electrodes_y; - cyapa->electrodes_rx = cyapa->electrodes_y; - } else { - cyapa->electrodes_rx = cyapa->electrodes_x; - cyapa->electrodes_rx = cyapa->electrodes_y; - } + cyapa->electrodes_rx = + rotat_align ? cyapa->electrodes_y : cyapa->electrodes_x; cyapa->aligned_electrodes_rx = (cyapa->electrodes_rx + 3) & ~3u; if (!cyapa->electrodes_x || !cyapa->electrodes_y || -- cgit 1.4.1 From e79b202c632f24f49f2eb9459b88b5fd9e332263 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Wed, 14 Oct 2015 11:23:09 -0700 Subject: Partially revert "clk: mvebu: Convert to clk_hw based provider APIs" This partially reverts commit eca61c9ff2588e1df373e61078e1874976315839. Thomas reports that it causes regressions on Armada XP devices. This is because of_clk_get_parent_name() relies on the property 'clock-output-names' to resolve the name of a clock's parent, without trying to get the clock from the framework and call __clk_get_name(). Given that Armada XP devices don't have the 'clock-output-names' property, of_clk_get_parent_name() returns the name of the node which doesn't match the actual parent clock's name at all, causing CPU clocks to never link up with their parents. Reported-by: Thomas Petazzoni Signed-off-by: Stephen Boyd --- drivers/clk/mvebu/clk-cpu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/clk/mvebu/clk-cpu.c b/drivers/clk/mvebu/clk-cpu.c index 5837eb8a212f..85da8b983256 100644 --- a/drivers/clk/mvebu/clk-cpu.c +++ b/drivers/clk/mvebu/clk-cpu.c @@ -197,6 +197,7 @@ static void __init of_cpu_clk_setup(struct device_node *node) for_each_node_by_type(dn, "cpu") { struct clk_init_data init; struct clk *clk; + struct clk *parent_clk; char *clk_name = kzalloc(5, GFP_KERNEL); int cpu, err; @@ -208,8 +209,9 @@ static void __init of_cpu_clk_setup(struct device_node *node) goto bail_out; sprintf(clk_name, "cpu%d", cpu); + parent_clk = of_clk_get(node, 0); - cpuclk[cpu].parent_name = of_clk_get_parent_name(node, 0); + cpuclk[cpu].parent_name = __clk_get_name(parent_clk); cpuclk[cpu].clk_name = clk_name; cpuclk[cpu].cpu = cpu; cpuclk[cpu].reg_base = clock_complex_base; -- cgit 1.4.1 From 62fcce91049a9681fc31d068ffcfaec8d168a857 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Wed, 14 Oct 2015 13:53:57 +0800 Subject: ACPICA: Tables: Fix FADT dependency regression Some logics actually relying on the existence of FADT, currently relies on the number of loaded tables. This false dependency can easily trigger regressions. One of them has been introduced by commit 8ec3f459073e (ACPICA: Tables: Fix global table list issues by removing fixed table). The commit changing the fixed table indexes results in the change of FADT table index, originally, it was 3 (thus the installed table count should be greater than 4), while currently it is 0 (and the installed table count may be 3). This patch fixes this regression by cleaning up the code. Lv Zheng. Link: https://bugzilla.kernel.org/show_bug.cgi?id=105351 Fixes: 8ec3f459073e (ACPICA: Tables: Fix global table list issues by removing fixed table) Reported-and-tested-by: Meelis Roos Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpica/acglobal.h | 1 + drivers/acpi/acpica/actables.h | 4 +--- drivers/acpi/acpica/evxfevnt.c | 2 +- drivers/acpi/acpica/tbfadt.c | 10 +++++----- drivers/acpi/acpica/tbutils.c | 26 ++------------------------ 5 files changed, 10 insertions(+), 33 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 09f37b516808..4dde37c3d8fc 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -61,6 +61,7 @@ ACPI_GLOBAL(struct acpi_table_header, acpi_gbl_original_dsdt_header); ACPI_INIT_GLOBAL(u32, acpi_gbl_dsdt_index, ACPI_INVALID_TABLE_INDEX); ACPI_INIT_GLOBAL(u32, acpi_gbl_facs_index, ACPI_INVALID_TABLE_INDEX); ACPI_INIT_GLOBAL(u32, acpi_gbl_xfacs_index, ACPI_INVALID_TABLE_INDEX); +ACPI_INIT_GLOBAL(u32, acpi_gbl_fadt_index, ACPI_INVALID_TABLE_INDEX); #if (!ACPI_REDUCED_HARDWARE) ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS); diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h index f7731f260c31..591ea95319e2 100644 --- a/drivers/acpi/acpica/actables.h +++ b/drivers/acpi/acpica/actables.h @@ -85,7 +85,7 @@ void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded); /* * tbfadt - FADT parse/convert/validate */ -void acpi_tb_parse_fadt(u32 table_index); +void acpi_tb_parse_fadt(void); void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length); @@ -138,8 +138,6 @@ acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id); */ acpi_status acpi_tb_initialize_facs(void); -u8 acpi_tb_tables_loaded(void); - void acpi_tb_print_table_header(acpi_physical_address address, struct acpi_table_header *header); diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c index faad911d46b5..10ce48e16ebf 100644 --- a/drivers/acpi/acpica/evxfevnt.c +++ b/drivers/acpi/acpica/evxfevnt.c @@ -71,7 +71,7 @@ acpi_status acpi_enable(void) /* ACPI tables must be present */ - if (!acpi_tb_tables_loaded()) { + if (acpi_gbl_fadt_index == ACPI_INVALID_TABLE_INDEX) { return_ACPI_STATUS(AE_NO_ACPI_TABLES); } diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index 455a0700db39..a6454f4a6fb3 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -298,7 +298,7 @@ acpi_tb_select_address(char *register_name, u32 address32, u64 address64) * * FUNCTION: acpi_tb_parse_fadt * - * PARAMETERS: table_index - Index for the FADT + * PARAMETERS: None * * RETURN: None * @@ -307,7 +307,7 @@ acpi_tb_select_address(char *register_name, u32 address32, u64 address64) * ******************************************************************************/ -void acpi_tb_parse_fadt(u32 table_index) +void acpi_tb_parse_fadt(void) { u32 length; struct acpi_table_header *table; @@ -319,11 +319,11 @@ void acpi_tb_parse_fadt(u32 table_index) * Get a local copy of the FADT and convert it to a common format * Map entire FADT, assumed to be smaller than one page. */ - length = acpi_gbl_root_table_list.tables[table_index].length; + length = acpi_gbl_root_table_list.tables[acpi_gbl_fadt_index].length; table = - acpi_os_map_memory(acpi_gbl_root_table_list.tables[table_index]. - address, length); + acpi_os_map_memory(acpi_gbl_root_table_list. + tables[acpi_gbl_fadt_index].address, length); if (!table) { return; } diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index 4337990127cc..d8ddef38c947 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -97,29 +97,6 @@ acpi_status acpi_tb_initialize_facs(void) } #endif /* !ACPI_REDUCED_HARDWARE */ -/******************************************************************************* - * - * FUNCTION: acpi_tb_tables_loaded - * - * PARAMETERS: None - * - * RETURN: TRUE if required ACPI tables are loaded - * - * DESCRIPTION: Determine if the minimum required ACPI tables are present - * (FADT, FACS, DSDT) - * - ******************************************************************************/ - -u8 acpi_tb_tables_loaded(void) -{ - - if (acpi_gbl_root_table_list.current_table_count >= 4) { - return (TRUE); - } - - return (FALSE); -} - /******************************************************************************* * * FUNCTION: acpi_tb_check_dsdt_header @@ -392,7 +369,8 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) ACPI_COMPARE_NAME(&acpi_gbl_root_table_list. tables[table_index].signature, ACPI_SIG_FADT)) { - acpi_tb_parse_fadt(table_index); + acpi_gbl_fadt_index = table_index; + acpi_tb_parse_fadt(); } next_table: -- cgit 1.4.1 From bc8c131ccdd62d4ed4f33c6b50f92907e7c32dee Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 15 Oct 2015 09:04:21 +1000 Subject: drm/radeon: attach tile property to mst connector This allows tiled monitors to work with radeon once mst is enabled. Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_dp_mst.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c index 6cddae44fa6e..744f5c49c664 100644 --- a/drivers/gpu/drm/radeon/radeon_dp_mst.c +++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c @@ -283,6 +283,7 @@ static struct drm_connector *radeon_dp_add_mst_connector(struct drm_dp_mst_topol radeon_connector->mst_encoder = radeon_dp_create_fake_mst_encoder(master); drm_object_attach_property(&connector->base, dev->mode_config.path_property, 0); + drm_object_attach_property(&connector->base, dev->mode_config.tile_property, 0); drm_mode_connector_set_path_property(connector, pathprop); return connector; -- cgit 1.4.1 From ae491542cbbbcca0ec8938c37d4079a985e58440 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 14 Oct 2015 18:51:17 +1000 Subject: drm/dp/mst: make mst i2c transfer code more robust. This zeroes the msg so no random stack data ends up getting sent, it also limits the function to not accepting > 4 i2c msgs. Cc: stable@vger.kernel.org Reviewed-by: Daniel Vetter Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_dp_mst_topology.c | 3 ++- include/drm/drm_dp_mst_helper.h | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index bf27a07dbce3..5bca390d9ae2 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -2801,12 +2801,13 @@ static int drm_dp_mst_i2c_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs if (msgs[num - 1].flags & I2C_M_RD) reading = true; - if (!reading) { + if (!reading || (num - 1 > DP_REMOTE_I2C_READ_MAX_TRANSACTIONS)) { DRM_DEBUG_KMS("Unsupported I2C transaction for MST device\n"); ret = -EIO; goto out; } + memset(&msg, 0, sizeof(msg)); msg.req_type = DP_REMOTE_I2C_READ; msg.u.i2c_read.num_transactions = num - 1; msg.u.i2c_read.port_number = port->port_num; diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h index 0f408b002d98..5340099741ae 100644 --- a/include/drm/drm_dp_mst_helper.h +++ b/include/drm/drm_dp_mst_helper.h @@ -253,6 +253,7 @@ struct drm_dp_remote_dpcd_write { u8 *bytes; }; +#define DP_REMOTE_I2C_READ_MAX_TRANSACTIONS 4 struct drm_dp_remote_i2c_read { u8 num_transactions; u8 port_number; @@ -262,7 +263,7 @@ struct drm_dp_remote_i2c_read { u8 *bytes; u8 no_stop_bit; u8 i2c_transaction_delay; - } transactions[4]; + } transactions[DP_REMOTE_I2C_READ_MAX_TRANSACTIONS]; u8 read_i2c_device_id; u8 num_bytes_read; }; -- cgit 1.4.1 From 74cedd30522819d87131715ca0e7d041748b2721 Mon Sep 17 00:00:00 2001 From: Kieran Bingham Date: Mon, 12 Oct 2015 21:54:43 +0100 Subject: i2c: return probe deferred status on dev_pm_domain_attach A change of return status was introduced in commit 3fffd1283927 ("i2c: allow specifying separate wakeup interrupt in device tree") The commit prevents the defer status being passed up the call stack appropriately when dev_pm_domain_attach returns -EPROBE_DEFER. Catch the PROBE_DEFER and clear up the IRQ wakeup status Signed-off-by: Kieran Bingham Fixes: 3fffd1283927 ("i2c: allow specifying separate wakeup interrupt in device tree") Reviewed-by: Dmitry Torokhov Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-core.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 5f89f1e3c2f2..a59c3111f7fb 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -694,12 +694,12 @@ static int i2c_device_probe(struct device *dev) goto err_clear_wakeup_irq; status = dev_pm_domain_attach(&client->dev, true); - if (status != -EPROBE_DEFER) { - status = driver->probe(client, i2c_match_id(driver->id_table, - client)); - if (status) - goto err_detach_pm_domain; - } + if (status == -EPROBE_DEFER) + goto err_clear_wakeup_irq; + + status = driver->probe(client, i2c_match_id(driver->id_table, client)); + if (status) + goto err_detach_pm_domain; return 0; -- cgit 1.4.1 From 4f7effddf4549d57114289f273710f077c4c330a Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Fri, 9 Oct 2015 10:39:25 +0100 Subject: i2c: rcar: enable RuntimePM before registering to the core The core may register clients attached to this master which may use funtionality from the master. So, RuntimePM must be enabled before, otherwise this will fail. While here, move drvdata, too. Reported-by: Geert Uytterhoeven Signed-off-by: Wolfram Sang Signed-off-by: Wolfram Sang Cc: stable@kernel.org --- drivers/i2c/busses/i2c-rcar.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index d8361dada584..d8b5a8fee1e6 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -690,15 +690,16 @@ static int rcar_i2c_probe(struct platform_device *pdev) return ret; } + pm_runtime_enable(dev); + platform_set_drvdata(pdev, priv); + ret = i2c_add_numbered_adapter(adap); if (ret < 0) { dev_err(dev, "reg adap failed: %d\n", ret); + pm_runtime_disable(dev); return ret; } - pm_runtime_enable(dev); - platform_set_drvdata(pdev, priv); - dev_info(dev, "probed\n"); return 0; -- cgit 1.4.1 From eadd709f5d2e8aebb1b7bf49460e97a68d81a9b0 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sat, 10 Oct 2015 08:24:23 +0100 Subject: i2c: s3c2410: enable RuntimePM before registering to the core The core may register clients attached to this master which may use funtionality from the master. So, RuntimePM must be enabled before, otherwise this will fail. While here, move drvdata, too. Signed-off-by: Wolfram Sang Tested-by: Krzysztof Kozlowski Acked-by: Kukjin Kim Signed-off-by: Wolfram Sang Cc: stable@kernel.org --- drivers/i2c/busses/i2c-s3c2410.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 50bfd8cef5f2..5df819610d52 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -1243,17 +1243,19 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev) i2c->adap.nr = i2c->pdata->bus_num; i2c->adap.dev.of_node = pdev->dev.of_node; + platform_set_drvdata(pdev, i2c); + + pm_runtime_enable(&pdev->dev); + ret = i2c_add_numbered_adapter(&i2c->adap); if (ret < 0) { dev_err(&pdev->dev, "failed to add bus to i2c core\n"); + pm_runtime_disable(&pdev->dev); s3c24xx_i2c_deregister_cpufreq(i2c); clk_unprepare(i2c->clk); return ret; } - platform_set_drvdata(pdev, i2c); - - pm_runtime_enable(&pdev->dev); pm_runtime_enable(&i2c->adap.dev); dev_info(&pdev->dev, "%s: S3C I2C adapter\n", dev_name(&i2c->adap.dev)); -- cgit 1.4.1 From 36d48fb5766aee9717e429f772046696b215282d Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Fri, 9 Oct 2015 10:39:24 +0100 Subject: i2c: designware-platdrv: enable RuntimePM before registering to the core The core may register clients attached to this master which may use funtionality from the master. So, RuntimePM must be enabled before, otherwise this will fail. Signed-off-by: Wolfram Sang Signed-off-by: Wolfram Sang Acked-by: Mika Westerberg Cc: stable@kernel.org --- drivers/i2c/busses/i2c-designware-platdrv.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 3dd2de31a2f8..73d58415bbc1 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -253,12 +253,6 @@ static int dw_i2c_probe(struct platform_device *pdev) adap->dev.parent = &pdev->dev; adap->dev.of_node = pdev->dev.of_node; - r = i2c_add_numbered_adapter(adap); - if (r) { - dev_err(&pdev->dev, "failure adding adapter\n"); - return r; - } - if (dev->pm_runtime_disabled) { pm_runtime_forbid(&pdev->dev); } else { @@ -268,6 +262,13 @@ static int dw_i2c_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); } + r = i2c_add_numbered_adapter(adap); + if (r) { + dev_err(&pdev->dev, "failure adding adapter\n"); + pm_runtime_disable(&pdev->dev); + return r; + } + return 0; } -- cgit 1.4.1 From 80c083c5e4dc35fa37c01f000b1393c51294b9de Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 12 Oct 2015 10:38:02 -0400 Subject: drm/amdgpu: adjust default dispclk (v2) Set the default to 600Mhz if it's not set in the bios, and bump the default to 600Mhz if it's lower than that. Port of radeon commit: 9368931db826d57b6b88b3145a00276626b48df0 v2: clean up the code a bit bug: https://bugs.freedesktop.org/show_bug.cgi?id=91896 Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c index 77f1d7c6ea3a..9416e0f5c1db 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c @@ -672,8 +672,12 @@ int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev) /* disp clock */ adev->clock.default_dispclk = le32_to_cpu(firmware_info->info_21.ulDefaultDispEngineClkFreq); - if (adev->clock.default_dispclk == 0) - adev->clock.default_dispclk = 54000; /* 540 Mhz */ + /* set a reasonable default for DP */ + if (adev->clock.default_dispclk < 53900) { + DRM_INFO("Changing default dispclk from %dMhz to 600Mhz\n", + adev->clock.default_dispclk / 100); + adev->clock.default_dispclk = 60000; + } adev->clock.dp_extclk = le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq); adev->clock.current_dispclk = adev->clock.default_dispclk; -- cgit 1.4.1 From f6c7aba47bcc0b1cc2085c8d8af80f8c02f28269 Mon Sep 17 00:00:00 2001 From: Michel Dänzer Date: Thu, 8 Oct 2015 17:48:04 +0900 Subject: drm/amdgpu: Keep the pflip interrupts always enabled v7 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes flickering issues caused by prematurely firing pflip interrupts. v2 (chk): add commit message, fix DCE V10/V11 and DM as well v3: Re-enable pflip interrupt wherever we re-enable a CRTC v4: Enable pflip interrupt in DAL as well v5: drop DAL changes for upstream v6: (agd): only enable interrupts on crtcs that exist v7: (agd): integrate suggestions from Michel Signed-off-by: Michel Dänzer Signed-off-by: Christian König Reviewed-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 2 -- drivers/gpu/drm/amd/amdgpu/dce_v10_0.c | 30 +++++++++++++++++++++++++++-- drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 30 +++++++++++++++++++++++++++-- drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 30 +++++++++++++++++++++++++++-- 4 files changed, 84 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c index e3d70772b531..dc29ed8145c2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c @@ -85,8 +85,6 @@ static void amdgpu_flip_work_func(struct work_struct *__work) /* We borrow the event spin lock for protecting flip_status */ spin_lock_irqsave(&crtc->dev->event_lock, flags); - /* set the proper interrupt */ - amdgpu_irq_get(adev, &adev->pageflip_irq, work->crtc_id); /* do the flip (mmio) */ adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base); /* set the flip status */ diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c index e4d101b1252a..d4c82b625727 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c @@ -255,6 +255,24 @@ static u32 dce_v10_0_vblank_get_counter(struct amdgpu_device *adev, int crtc) return RREG32(mmCRTC_STATUS_FRAME_COUNT + crtc_offsets[crtc]); } +static void dce_v10_0_pageflip_interrupt_init(struct amdgpu_device *adev) +{ + unsigned i; + + /* Enable pflip interrupts */ + for (i = 0; i < adev->mode_info.num_crtc; i++) + amdgpu_irq_get(adev, &adev->pageflip_irq, i); +} + +static void dce_v10_0_pageflip_interrupt_fini(struct amdgpu_device *adev) +{ + unsigned i; + + /* Disable pflip interrupts */ + for (i = 0; i < adev->mode_info.num_crtc; i++) + amdgpu_irq_put(adev, &adev->pageflip_irq, i); +} + /** * dce_v10_0_page_flip - pageflip callback. * @@ -2663,9 +2681,10 @@ static void dce_v10_0_crtc_dpms(struct drm_crtc *crtc, int mode) dce_v10_0_vga_enable(crtc, true); amdgpu_atombios_crtc_blank(crtc, ATOM_DISABLE); dce_v10_0_vga_enable(crtc, false); - /* Make sure VBLANK interrupt is still enabled */ + /* Make sure VBLANK and PFLIP interrupts are still enabled */ type = amdgpu_crtc_idx_to_irq_type(adev, amdgpu_crtc->crtc_id); amdgpu_irq_update(adev, &adev->crtc_irq, type); + amdgpu_irq_update(adev, &adev->pageflip_irq, type); drm_vblank_post_modeset(dev, amdgpu_crtc->crtc_id); dce_v10_0_crtc_load_lut(crtc); break; @@ -3025,6 +3044,8 @@ static int dce_v10_0_hw_init(void *handle) dce_v10_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false); } + dce_v10_0_pageflip_interrupt_init(adev); + return 0; } @@ -3039,6 +3060,8 @@ static int dce_v10_0_hw_fini(void *handle) dce_v10_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false); } + dce_v10_0_pageflip_interrupt_fini(adev); + return 0; } @@ -3050,6 +3073,8 @@ static int dce_v10_0_suspend(void *handle) dce_v10_0_hpd_fini(adev); + dce_v10_0_pageflip_interrupt_fini(adev); + return 0; } @@ -3075,6 +3100,8 @@ static int dce_v10_0_resume(void *handle) /* initialize hpd */ dce_v10_0_hpd_init(adev); + dce_v10_0_pageflip_interrupt_init(adev); + return 0; } @@ -3369,7 +3396,6 @@ static int dce_v10_0_pageflip_irq(struct amdgpu_device *adev, spin_unlock_irqrestore(&adev->ddev->event_lock, flags); drm_vblank_put(adev->ddev, amdgpu_crtc->crtc_id); - amdgpu_irq_put(adev, &adev->pageflip_irq, crtc_id); queue_work(amdgpu_crtc->pflip_queue, &works->unpin_work); return 0; diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c index fcd2ed558902..7e1cf5e4eebf 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c @@ -233,6 +233,24 @@ static u32 dce_v11_0_vblank_get_counter(struct amdgpu_device *adev, int crtc) return RREG32(mmCRTC_STATUS_FRAME_COUNT + crtc_offsets[crtc]); } +static void dce_v11_0_pageflip_interrupt_init(struct amdgpu_device *adev) +{ + unsigned i; + + /* Enable pflip interrupts */ + for (i = 0; i < adev->mode_info.num_crtc; i++) + amdgpu_irq_get(adev, &adev->pageflip_irq, i); +} + +static void dce_v11_0_pageflip_interrupt_fini(struct amdgpu_device *adev) +{ + unsigned i; + + /* Disable pflip interrupts */ + for (i = 0; i < adev->mode_info.num_crtc; i++) + amdgpu_irq_put(adev, &adev->pageflip_irq, i); +} + /** * dce_v11_0_page_flip - pageflip callback. * @@ -2640,9 +2658,10 @@ static void dce_v11_0_crtc_dpms(struct drm_crtc *crtc, int mode) dce_v11_0_vga_enable(crtc, true); amdgpu_atombios_crtc_blank(crtc, ATOM_DISABLE); dce_v11_0_vga_enable(crtc, false); - /* Make sure VBLANK interrupt is still enabled */ + /* Make sure VBLANK and PFLIP interrupts are still enabled */ type = amdgpu_crtc_idx_to_irq_type(adev, amdgpu_crtc->crtc_id); amdgpu_irq_update(adev, &adev->crtc_irq, type); + amdgpu_irq_update(adev, &adev->pageflip_irq, type); drm_vblank_post_modeset(dev, amdgpu_crtc->crtc_id); dce_v11_0_crtc_load_lut(crtc); break; @@ -3000,6 +3019,8 @@ static int dce_v11_0_hw_init(void *handle) dce_v11_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false); } + dce_v11_0_pageflip_interrupt_init(adev); + return 0; } @@ -3014,6 +3035,8 @@ static int dce_v11_0_hw_fini(void *handle) dce_v11_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false); } + dce_v11_0_pageflip_interrupt_fini(adev); + return 0; } @@ -3025,6 +3048,8 @@ static int dce_v11_0_suspend(void *handle) dce_v11_0_hpd_fini(adev); + dce_v11_0_pageflip_interrupt_fini(adev); + return 0; } @@ -3051,6 +3076,8 @@ static int dce_v11_0_resume(void *handle) /* initialize hpd */ dce_v11_0_hpd_init(adev); + dce_v11_0_pageflip_interrupt_init(adev); + return 0; } @@ -3345,7 +3372,6 @@ static int dce_v11_0_pageflip_irq(struct amdgpu_device *adev, spin_unlock_irqrestore(&adev->ddev->event_lock, flags); drm_vblank_put(adev->ddev, amdgpu_crtc->crtc_id); - amdgpu_irq_put(adev, &adev->pageflip_irq, crtc_id); queue_work(amdgpu_crtc->pflip_queue, &works->unpin_work); return 0; diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c index c86911c2ea2a..34b9c2a9d8d4 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c @@ -204,6 +204,24 @@ static u32 dce_v8_0_vblank_get_counter(struct amdgpu_device *adev, int crtc) return RREG32(mmCRTC_STATUS_FRAME_COUNT + crtc_offsets[crtc]); } +static void dce_v8_0_pageflip_interrupt_init(struct amdgpu_device *adev) +{ + unsigned i; + + /* Enable pflip interrupts */ + for (i = 0; i < adev->mode_info.num_crtc; i++) + amdgpu_irq_get(adev, &adev->pageflip_irq, i); +} + +static void dce_v8_0_pageflip_interrupt_fini(struct amdgpu_device *adev) +{ + unsigned i; + + /* Disable pflip interrupts */ + for (i = 0; i < adev->mode_info.num_crtc; i++) + amdgpu_irq_put(adev, &adev->pageflip_irq, i); +} + /** * dce_v8_0_page_flip - pageflip callback. * @@ -2575,9 +2593,10 @@ static void dce_v8_0_crtc_dpms(struct drm_crtc *crtc, int mode) dce_v8_0_vga_enable(crtc, true); amdgpu_atombios_crtc_blank(crtc, ATOM_DISABLE); dce_v8_0_vga_enable(crtc, false); - /* Make sure VBLANK interrupt is still enabled */ + /* Make sure VBLANK and PFLIP interrupts are still enabled */ type = amdgpu_crtc_idx_to_irq_type(adev, amdgpu_crtc->crtc_id); amdgpu_irq_update(adev, &adev->crtc_irq, type); + amdgpu_irq_update(adev, &adev->pageflip_irq, type); drm_vblank_post_modeset(dev, amdgpu_crtc->crtc_id); dce_v8_0_crtc_load_lut(crtc); break; @@ -2933,6 +2952,8 @@ static int dce_v8_0_hw_init(void *handle) dce_v8_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false); } + dce_v8_0_pageflip_interrupt_init(adev); + return 0; } @@ -2947,6 +2968,8 @@ static int dce_v8_0_hw_fini(void *handle) dce_v8_0_audio_enable(adev, &adev->mode_info.audio.pin[i], false); } + dce_v8_0_pageflip_interrupt_fini(adev); + return 0; } @@ -2958,6 +2981,8 @@ static int dce_v8_0_suspend(void *handle) dce_v8_0_hpd_fini(adev); + dce_v8_0_pageflip_interrupt_fini(adev); + return 0; } @@ -2981,6 +3006,8 @@ static int dce_v8_0_resume(void *handle) /* initialize hpd */ dce_v8_0_hpd_init(adev); + dce_v8_0_pageflip_interrupt_init(adev); + return 0; } @@ -3376,7 +3403,6 @@ static int dce_v8_0_pageflip_irq(struct amdgpu_device *adev, spin_unlock_irqrestore(&adev->ddev->event_lock, flags); drm_vblank_put(adev->ddev, amdgpu_crtc->crtc_id); - amdgpu_irq_put(adev, &adev->pageflip_irq, crtc_id); queue_work(amdgpu_crtc->pflip_queue, &works->unpin_work); return 0; -- cgit 1.4.1 From 8e601a9f97a00bab031980de34f9a81891c1f82f Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Thu, 15 Oct 2015 12:34:21 -0700 Subject: cpufreq: intel_pstate: Fix divide by zero on Knights Landing (KNL) This is a workaround for KNL platform, where in some cases MPERF counter will not have updated value before next read of MSR_IA32_MPERF. In this case divide by zero will occur. This change ignores current sample for busy calculation in this case. Fixes: b34ef932d79a (intel_pstate: Knights Landing support) Signed-off-by: Srinivas Pandruvada Acked-by: Kristen Carlson Accardi Cc: 4.1+ # 4.1+ Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 3af9dd7332e6..aa33b92b3e3e 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -776,6 +776,11 @@ static inline void intel_pstate_sample(struct cpudata *cpu) local_irq_save(flags); rdmsrl(MSR_IA32_APERF, aperf); rdmsrl(MSR_IA32_MPERF, mperf); + if (cpu->prev_mperf == mperf) { + local_irq_restore(flags); + return; + } + tsc = rdtsc(); local_irq_restore(flags); -- cgit 1.4.1 From d549f545e690c3cbdeb33df3579eae3230eb8904 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 7 Oct 2015 12:41:21 +0200 Subject: drm/virtio: use %llu format string form atomic64_t The virtgpu driver prints the last_seq variable using the %ld or %lu format string, which does not work correctly on all architectures and causes this compiler warning on ARM: drivers/gpu/drm/virtio/virtgpu_fence.c: In function 'virtio_timeline_value_str': drivers/gpu/drm/virtio/virtgpu_fence.c:64:22: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'long long int' [-Wformat=] snprintf(str, size, "%lu", atomic64_read(&fence->drv->last_seq)); ^ drivers/gpu/drm/virtio/virtgpu_debugfs.c: In function 'virtio_gpu_debugfs_irq_info': drivers/gpu/drm/virtio/virtgpu_debugfs.c:37:16: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'long long int' [-Wformat=] seq_printf(m, "fence %ld %lld\n", ^ In order to avoid the warnings, this changes the format strings to %llu and adds a cast to u64, which makes it work the same way everywhere. Signed-off-by: Arnd Bergmann Signed-off-by: Dave Airlie --- drivers/gpu/drm/virtio/virtgpu_debugfs.c | 4 ++-- drivers/gpu/drm/virtio/virtgpu_fence.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/virtio/virtgpu_debugfs.c b/drivers/gpu/drm/virtio/virtgpu_debugfs.c index db8b49101a8b..512263919282 100644 --- a/drivers/gpu/drm/virtio/virtgpu_debugfs.c +++ b/drivers/gpu/drm/virtio/virtgpu_debugfs.c @@ -34,8 +34,8 @@ virtio_gpu_debugfs_irq_info(struct seq_file *m, void *data) struct drm_info_node *node = (struct drm_info_node *) m->private; struct virtio_gpu_device *vgdev = node->minor->dev->dev_private; - seq_printf(m, "fence %ld %lld\n", - atomic64_read(&vgdev->fence_drv.last_seq), + seq_printf(m, "fence %llu %lld\n", + (u64)atomic64_read(&vgdev->fence_drv.last_seq), vgdev->fence_drv.sync_seq); return 0; } diff --git a/drivers/gpu/drm/virtio/virtgpu_fence.c b/drivers/gpu/drm/virtio/virtgpu_fence.c index 1da632631dac..67097c9ce9c1 100644 --- a/drivers/gpu/drm/virtio/virtgpu_fence.c +++ b/drivers/gpu/drm/virtio/virtgpu_fence.c @@ -61,7 +61,7 @@ static void virtio_timeline_value_str(struct fence *f, char *str, int size) { struct virtio_gpu_fence *fence = to_virtio_fence(f); - snprintf(str, size, "%lu", atomic64_read(&fence->drv->last_seq)); + snprintf(str, size, "%llu", (u64)atomic64_read(&fence->drv->last_seq)); } static const struct fence_ops virtio_fence_ops = { -- cgit 1.4.1 From 0701c53e460ea64daf0ee789d0b08fef57800016 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Tue, 13 Oct 2015 19:14:45 +0100 Subject: genirq/msi: Do not use pci_msi_[un]mask_irq as default methods When we create a generic MSI domain, that MSI_FLAG_USE_DEF_CHIP_OPS is set, and that any of .mask or .unmask are NULL in the irq_chip structure, we set them to pci_msi_[un]mask_irq. This is a bad idea for at least two reasons: - PCI_MSI might not be selected, kernel fails to build (yes, this is legitimate, at least on arm64!) - This may not be a PCI/MSI domain at all (platform MSI, for example) Either way, this looks wrong. Move the overriding of mask/unmask to the PCI counterpart, and panic is any of these two methods is not set in the core code (they really should be present). Signed-off-by: Marc Zyngier Cc: Jiang Liu Cc: Bjorn Helgaas Link: http://lkml.kernel.org/r/1444760085-27857-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner --- drivers/pci/msi.c | 4 ++++ kernel/irq/msi.c | 6 +----- 2 files changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index d4497141d083..4a7da3c3e035 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -1243,6 +1243,10 @@ static void pci_msi_domain_update_chip_ops(struct msi_domain_info *info) BUG_ON(!chip); if (!chip->irq_write_msi_msg) chip->irq_write_msi_msg = pci_msi_domain_write_msg; + if (!chip->irq_mask) + chip->irq_mask = pci_msi_mask_irq; + if (!chip->irq_unmask) + chip->irq_unmask = pci_msi_unmask_irq; } /** diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index 7e6512b9dc1f..be9149f62eb8 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -228,11 +228,7 @@ static void msi_domain_update_chip_ops(struct msi_domain_info *info) { struct irq_chip *chip = info->chip; - BUG_ON(!chip); - if (!chip->irq_mask) - chip->irq_mask = pci_msi_mask_irq; - if (!chip->irq_unmask) - chip->irq_unmask = pci_msi_unmask_irq; + BUG_ON(!chip || !chip->irq_mask || !chip->irq_unmask); if (!chip->irq_set_affinity) chip->irq_set_affinity = msi_domain_set_affinity; } -- cgit 1.4.1 From 0d9fde4fc8f59a6bd316559d267a936b0737d05a Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Wed, 7 Oct 2015 16:09:35 +0200 Subject: rbd: set max_sectors explicitly Commit 30e2bc08b2bb ("Revert "block: remove artifical max_hw_sectors cap"") restored a clamp on max_sectors. It's now 2560 sectors instead of 1024, but it's not good enough: we set max_hw_sectors to rbd object size because we don't want object sized I/Os to be split, and the default object size is 4M. So, set max_sectors to max_hw_sectors in rbd at queue init time. Signed-off-by: Ilya Dryomov Reviewed-by: Alex Elder --- drivers/block/rbd.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index d93a0372b37b..2968b0956bed 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -3760,6 +3760,7 @@ static int rbd_init_disk(struct rbd_device *rbd_dev) /* set io sizes to object size */ segment_size = rbd_obj_bytes(&rbd_dev->header); blk_queue_max_hw_sectors(q, segment_size / SECTOR_SIZE); + q->limits.max_sectors = queue_max_hw_sectors(q); blk_queue_max_segments(q, segment_size / SECTOR_SIZE); blk_queue_max_segment_size(q, segment_size); blk_queue_io_min(q, segment_size); -- cgit 1.4.1 From e30b7577bf1d338ca8a273bd2f881de5a41572b7 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Wed, 7 Oct 2015 17:27:17 +0200 Subject: rbd: use writefull op for object size writes This covers only the simplest case - an object size sized write, but it's still useful in tiering setups when EC is used for the base tier as writefull op can be proxied, saving an object promotion. Even though updating ceph_osdc_new_request() to allow writefull should just be a matter of fixing an assert, I didn't do it because its only user is cephfs. All other sites were updated. Reflects ceph.git commit 7bfb7f9025a8ee0d2305f49bf0336d2424da5b5b. Signed-off-by: Ilya Dryomov Reviewed-by: Alex Elder --- drivers/block/rbd.c | 9 +++++++-- net/ceph/osd_client.c | 13 +++++++++---- 2 files changed, 16 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 2968b0956bed..f5e49b639818 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1863,9 +1863,11 @@ static void rbd_osd_req_callback(struct ceph_osd_request *osd_req, rbd_osd_read_callback(obj_request); break; case CEPH_OSD_OP_SETALLOCHINT: - rbd_assert(osd_req->r_ops[1].op == CEPH_OSD_OP_WRITE); + rbd_assert(osd_req->r_ops[1].op == CEPH_OSD_OP_WRITE || + osd_req->r_ops[1].op == CEPH_OSD_OP_WRITEFULL); /* fall through */ case CEPH_OSD_OP_WRITE: + case CEPH_OSD_OP_WRITEFULL: rbd_osd_write_callback(obj_request); break; case CEPH_OSD_OP_STAT: @@ -2401,7 +2403,10 @@ static void rbd_img_obj_request_fill(struct rbd_obj_request *obj_request, opcode = CEPH_OSD_OP_ZERO; } } else if (op_type == OBJ_OP_WRITE) { - opcode = CEPH_OSD_OP_WRITE; + if (!offset && length == object_size) + opcode = CEPH_OSD_OP_WRITEFULL; + else + opcode = CEPH_OSD_OP_WRITE; osd_req_op_alloc_hint_init(osd_request, num_ops, object_size, object_size); num_ops++; diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 80b94e37c94a..f79ccac6699f 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -285,6 +285,7 @@ static void osd_req_op_data_release(struct ceph_osd_request *osd_req, switch (op->op) { case CEPH_OSD_OP_READ: case CEPH_OSD_OP_WRITE: + case CEPH_OSD_OP_WRITEFULL: ceph_osd_data_release(&op->extent.osd_data); break; case CEPH_OSD_OP_CALL: @@ -485,13 +486,14 @@ void osd_req_op_extent_init(struct ceph_osd_request *osd_req, size_t payload_len = 0; BUG_ON(opcode != CEPH_OSD_OP_READ && opcode != CEPH_OSD_OP_WRITE && - opcode != CEPH_OSD_OP_ZERO && opcode != CEPH_OSD_OP_TRUNCATE); + opcode != CEPH_OSD_OP_WRITEFULL && opcode != CEPH_OSD_OP_ZERO && + opcode != CEPH_OSD_OP_TRUNCATE); op->extent.offset = offset; op->extent.length = length; op->extent.truncate_size = truncate_size; op->extent.truncate_seq = truncate_seq; - if (opcode == CEPH_OSD_OP_WRITE) + if (opcode == CEPH_OSD_OP_WRITE || opcode == CEPH_OSD_OP_WRITEFULL) payload_len += length; op->payload_len = payload_len; @@ -670,9 +672,11 @@ static u64 osd_req_encode_op(struct ceph_osd_request *req, break; case CEPH_OSD_OP_READ: case CEPH_OSD_OP_WRITE: + case CEPH_OSD_OP_WRITEFULL: case CEPH_OSD_OP_ZERO: case CEPH_OSD_OP_TRUNCATE: - if (src->op == CEPH_OSD_OP_WRITE) + if (src->op == CEPH_OSD_OP_WRITE || + src->op == CEPH_OSD_OP_WRITEFULL) request_data_len = src->extent.length; dst->extent.offset = cpu_to_le64(src->extent.offset); dst->extent.length = cpu_to_le64(src->extent.length); @@ -681,7 +685,8 @@ static u64 osd_req_encode_op(struct ceph_osd_request *req, dst->extent.truncate_seq = cpu_to_le32(src->extent.truncate_seq); osd_data = &src->extent.osd_data; - if (src->op == CEPH_OSD_OP_WRITE) + if (src->op == CEPH_OSD_OP_WRITE || + src->op == CEPH_OSD_OP_WRITEFULL) ceph_osdc_msg_data_add(req->r_request, osd_data); else ceph_osdc_msg_data_add(req->r_reply, osd_data); -- cgit 1.4.1 From 063d99b4fa762cbae9324dbbf9b6bff4b3a8cfdc Mon Sep 17 00:00:00 2001 From: Michal Hocko Date: Thu, 15 Oct 2015 15:28:24 -0700 Subject: mm, fs: obey gfp_mapping for add_to_page_cache() Commit 6afdb859b710 ("mm: do not ignore mapping_gfp_mask in page cache allocation paths") has caught some users of hardcoded GFP_KERNEL used in the page cache allocation paths. This, however, wasn't complete and there were others which went unnoticed. Dave Chinner has reported the following deadlock for xfs on loop device: : With the recent merge of the loop device changes, I'm now seeing : XFS deadlock on my single CPU, 1GB RAM VM running xfs/073. : : The deadlocked is as follows: : : kloopd1: loop_queue_read_work : xfs_file_iter_read : lock XFS inode XFS_IOLOCK_SHARED (on image file) : page cache read (GFP_KERNEL) : radix tree alloc : memory reclaim : reclaim XFS inodes : log force to unpin inodes : : : xfs-cil/loop1: : xlog_cil_push : xlog_write : : xlog_state_get_iclog_space() : : : : kloopd1: loop_queue_write_work : xfs_file_write_iter : lock XFS inode XFS_IOLOCK_EXCL (on image file) : : : i.e. the kloopd, with it's split read and write work queues, has : introduced a dependency through memory reclaim. i.e. that writes : need to be able to progress for reads make progress. : : The problem, fundamentally, is that mpage_readpages() does a : GFP_KERNEL allocation, rather than paying attention to the inode's : mapping gfp mask, which is set to GFP_NOFS. : : The didn't used to happen, because the loop device used to issue : reads through the splice path and that does: : : error = add_to_page_cache_lru(page, mapping, index, : GFP_KERNEL & mapping_gfp_mask(mapping)); This has changed by commit aa4d86163e4 ("block: loop: switch to VFS ITER_BVEC"). This patch changes mpage_readpage{s} to follow gfp mask set for the mapping. There are, however, other places which are doing basically the same. lustre:ll_dir_filler is doing GFP_KERNEL from the function which apparently uses GFP_NOFS for other allocations so let's make this consistent. cifs:readpages_get_pages is called from cifs_readpages and __cifs_readpages_from_fscache called from the same path obeys mapping gfp. ramfs_nommu_expand_for_mapping is hardcoding GFP_KERNEL as well regardless it uses mapping_gfp_mask for the page allocation. ext4_mpage_readpages is the called from the page cache allocation path same as read_pages and read_cache_pages As I've noticed in my previous post I cannot say I would be happy about sprinkling mapping_gfp_mask all over the place and it sounds like we should drop gfp_mask argument altogether and use it internally in __add_to_page_cache_locked that would require all the filesystems to use mapping gfp consistently which I am not sure is the case here. From a quick glance it seems that some file system use it all the time while others are selective. Signed-off-by: Michal Hocko Reported-by: Dave Chinner Cc: "Theodore Ts'o" Cc: Ming Lei Cc: Andreas Dilger Cc: Oleg Drokin Cc: Al Viro Cc: Christoph Hellwig Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/staging/lustre/lustre/llite/dir.c | 2 +- fs/cifs/file.c | 6 +++--- fs/ext4/readpage.c | 4 ++-- fs/mpage.c | 15 +++++++++------ fs/ramfs/file-nommu.c | 5 +++-- mm/readahead.c | 8 ++++---- 6 files changed, 22 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index 769b61193d87..a9bc6e23fc25 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -224,7 +224,7 @@ static int ll_dir_filler(void *_hash, struct page *page0) prefetchw(&page->flags); ret = add_to_page_cache_lru(page, inode->i_mapping, offset, - GFP_KERNEL); + GFP_NOFS); if (ret == 0) { unlock_page(page); } else { diff --git a/fs/cifs/file.c b/fs/cifs/file.c index e2a6af1508af..62203c387db4 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -3380,6 +3380,7 @@ readpages_get_pages(struct address_space *mapping, struct list_head *page_list, struct page *page, *tpage; unsigned int expected_index; int rc; + gfp_t gfp = GFP_KERNEL & mapping_gfp_mask(mapping); INIT_LIST_HEAD(tmplist); @@ -3392,7 +3393,7 @@ readpages_get_pages(struct address_space *mapping, struct list_head *page_list, */ __set_page_locked(page); rc = add_to_page_cache_locked(page, mapping, - page->index, GFP_KERNEL); + page->index, gfp); /* give up if we can't stick it in the cache */ if (rc) { @@ -3418,8 +3419,7 @@ readpages_get_pages(struct address_space *mapping, struct list_head *page_list, break; __set_page_locked(page); - if (add_to_page_cache_locked(page, mapping, page->index, - GFP_KERNEL)) { + if (add_to_page_cache_locked(page, mapping, page->index, gfp)) { __clear_page_locked(page); break; } diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c index e26803fb210d..560af0437704 100644 --- a/fs/ext4/readpage.c +++ b/fs/ext4/readpage.c @@ -165,8 +165,8 @@ int ext4_mpage_readpages(struct address_space *mapping, if (pages) { page = list_entry(pages->prev, struct page, lru); list_del(&page->lru); - if (add_to_page_cache_lru(page, mapping, - page->index, GFP_KERNEL)) + if (add_to_page_cache_lru(page, mapping, page->index, + GFP_KERNEL & mapping_gfp_mask(mapping))) goto next_page; } diff --git a/fs/mpage.c b/fs/mpage.c index 778a4ddef77a..a7c34274f207 100644 --- a/fs/mpage.c +++ b/fs/mpage.c @@ -139,7 +139,8 @@ map_buffer_to_page(struct page *page, struct buffer_head *bh, int page_block) static struct bio * do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages, sector_t *last_block_in_bio, struct buffer_head *map_bh, - unsigned long *first_logical_block, get_block_t get_block) + unsigned long *first_logical_block, get_block_t get_block, + gfp_t gfp) { struct inode *inode = page->mapping->host; const unsigned blkbits = inode->i_blkbits; @@ -277,8 +278,7 @@ alloc_new: goto out; } bio = mpage_alloc(bdev, blocks[0] << (blkbits - 9), - min_t(int, nr_pages, BIO_MAX_PAGES), - GFP_KERNEL); + min_t(int, nr_pages, BIO_MAX_PAGES), gfp); if (bio == NULL) goto confused; } @@ -361,6 +361,7 @@ mpage_readpages(struct address_space *mapping, struct list_head *pages, sector_t last_block_in_bio = 0; struct buffer_head map_bh; unsigned long first_logical_block = 0; + gfp_t gfp = GFP_KERNEL & mapping_gfp_mask(mapping); map_bh.b_state = 0; map_bh.b_size = 0; @@ -370,12 +371,13 @@ mpage_readpages(struct address_space *mapping, struct list_head *pages, prefetchw(&page->flags); list_del(&page->lru); if (!add_to_page_cache_lru(page, mapping, - page->index, GFP_KERNEL)) { + page->index, + gfp)) { bio = do_mpage_readpage(bio, page, nr_pages - page_idx, &last_block_in_bio, &map_bh, &first_logical_block, - get_block); + get_block, gfp); } page_cache_release(page); } @@ -395,11 +397,12 @@ int mpage_readpage(struct page *page, get_block_t get_block) sector_t last_block_in_bio = 0; struct buffer_head map_bh; unsigned long first_logical_block = 0; + gfp_t gfp = GFP_KERNEL & mapping_gfp_mask(page->mapping); map_bh.b_state = 0; map_bh.b_size = 0; bio = do_mpage_readpage(bio, page, 1, &last_block_in_bio, - &map_bh, &first_logical_block, get_block); + &map_bh, &first_logical_block, get_block, gfp); if (bio) mpage_bio_submit(READ, bio); return 0; diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c index ba1323a94924..a586467f6ff6 100644 --- a/fs/ramfs/file-nommu.c +++ b/fs/ramfs/file-nommu.c @@ -70,6 +70,7 @@ int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize) unsigned order; void *data; int ret; + gfp_t gfp = mapping_gfp_mask(inode->i_mapping); /* make various checks */ order = get_order(newsize); @@ -84,7 +85,7 @@ int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize) /* allocate enough contiguous pages to be able to satisfy the * request */ - pages = alloc_pages(mapping_gfp_mask(inode->i_mapping), order); + pages = alloc_pages(gfp, order); if (!pages) return -ENOMEM; @@ -108,7 +109,7 @@ int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize) struct page *page = pages + loop; ret = add_to_page_cache_lru(page, inode->i_mapping, loop, - GFP_KERNEL); + gfp); if (ret < 0) goto add_error; diff --git a/mm/readahead.c b/mm/readahead.c index 60cd846a9a44..24682f6f4cfd 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -89,8 +89,8 @@ int read_cache_pages(struct address_space *mapping, struct list_head *pages, while (!list_empty(pages)) { page = list_to_page(pages); list_del(&page->lru); - if (add_to_page_cache_lru(page, mapping, - page->index, GFP_KERNEL)) { + if (add_to_page_cache_lru(page, mapping, page->index, + GFP_KERNEL & mapping_gfp_mask(mapping))) { read_cache_pages_invalidate_page(mapping, page); continue; } @@ -127,8 +127,8 @@ static int read_pages(struct address_space *mapping, struct file *filp, for (page_idx = 0; page_idx < nr_pages; page_idx++) { struct page *page = list_to_page(pages); list_del(&page->lru); - if (!add_to_page_cache_lru(page, mapping, - page->index, GFP_KERNEL)) { + if (!add_to_page_cache_lru(page, mapping, page->index, + GFP_KERNEL & mapping_gfp_mask(mapping))) { mapping->a_ops->readpage(filp, page); } page_cache_release(page); -- cgit 1.4.1 From 56d4b8a24cef5d66f0d10ac778a520d3c2c68a48 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Thu, 24 Sep 2015 12:06:54 +0300 Subject: i2c: designware: Do not use parameters from ACPI on Dell Inspiron 7348 ACPI SSCN/FMCN methods were originally added because then the platform can provide the most accurate HCNT/LCNT values to the driver. However, this seems not to be true for Dell Inspiron 7348 where using these causes the touchpad to fail in boot: i2c_hid i2c-DLL0675:00: failed to retrieve report from device. i2c_designware INT3433:00: i2c_dw_handle_tx_abort: lost arbitration i2c_hid i2c-DLL0675:00: failed to retrieve report from device. i2c_designware INT3433:00: controller timed out The values received from ACPI are (in fast mode): HCNT: 72 LCNT: 160 this translates to following timings (input clock is 100MHz on Broadwell): tHIGH: 720 ns (spec min 600 ns) tLOW: 1600 ns (spec min 1300 ns) Bus period: 2920 ns (assuming 300 ns tf and tr) Bus speed: 342.5 kHz Both tHIGH and tLOW are within the I2C specification. The calculated values when ACPI parameters are not used are (in fast mode): HCNT: 87 LCNT: 159 which translates to: tHIGH: 870 ns (spec min 600 ns) tLOW: 1590 ns (spec min 1300 ns) Bus period 3060 ns (assuming 300 ns tf and tr) Bus speed 326.8 kHz These values are also within the I2C specification. Since both ACPI and calculated values meet the I2C specification timing requirements it is hard to say why the touchpad does not function properly with the ACPI values except that the bus speed is higher in this case (but still well below the max 400kHz). Solve this by adding DMI quirk to the driver that disables using ACPI parameters on this particulare machine. Reported-by: Pavel Roskin Signed-off-by: Mika Westerberg Tested-by: Pavel Roskin Signed-off-by: Wolfram Sang Cc: stable@kernel.org --- drivers/i2c/busses/i2c-designware-platdrv.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 73d58415bbc1..472b88285c75 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -51,6 +52,22 @@ static u32 i2c_dw_get_clk_rate_khz(struct dw_i2c_dev *dev) } #ifdef CONFIG_ACPI +/* + * The HCNT/LCNT information coming from ACPI should be the most accurate + * for given platform. However, some systems get it wrong. On such systems + * we get better results by calculating those based on the input clock. + */ +static const struct dmi_system_id dw_i2c_no_acpi_params[] = { + { + .ident = "Dell Inspiron 7348", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7348"), + }, + }, + { } +}; + static void dw_i2c_acpi_params(struct platform_device *pdev, char method[], u16 *hcnt, u16 *lcnt, u32 *sda_hold) { @@ -58,6 +75,9 @@ static void dw_i2c_acpi_params(struct platform_device *pdev, char method[], acpi_handle handle = ACPI_HANDLE(&pdev->dev); union acpi_object *obj; + if (dmi_check_system(dw_i2c_no_acpi_params)) + return; + if (ACPI_FAILURE(acpi_evaluate_object(handle, method, NULL, &buf))) return; -- cgit 1.4.1