diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/Kconfig | 4 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/bpf_perf_event.h | 9 | ||||
| -rw-r--r-- | arch/powerpc/include/uapi/asm/bpf_perf_event.h | 9 | ||||
| -rw-r--r-- | arch/powerpc/kernel/prom_init_check.sh | 2 | ||||
| -rw-r--r-- | arch/powerpc/mm/mem.c | 33 | ||||
| -rw-r--r-- | arch/powerpc/mm/nohash/book3e_pgtable.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/xive/spapr.c | 5 |
7 files changed, 52 insertions, 16 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index c2ce2e60c8f0..7aa12e88c580 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -358,6 +358,10 @@ config ARCH_SUSPEND_NONZERO_CPU def_bool y depends on PPC_POWERNV || PPC_PSERIES +config ARCH_HAS_ADD_PAGES + def_bool y + depends on ARCH_ENABLE_MEMORY_HOTPLUG + config PPC_DCR_NATIVE bool diff --git a/arch/powerpc/include/asm/bpf_perf_event.h b/arch/powerpc/include/asm/bpf_perf_event.h new file mode 100644 index 000000000000..e8a7b4ffb58c --- /dev/null +++ b/arch/powerpc/include/asm/bpf_perf_event.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_POWERPC_BPF_PERF_EVENT_H +#define _ASM_POWERPC_BPF_PERF_EVENT_H + +#include <asm/ptrace.h> + +typedef struct user_pt_regs bpf_user_pt_regs_t; + +#endif /* _ASM_POWERPC_BPF_PERF_EVENT_H */ diff --git a/arch/powerpc/include/uapi/asm/bpf_perf_event.h b/arch/powerpc/include/uapi/asm/bpf_perf_event.h deleted file mode 100644 index 5e1e648aeec4..000000000000 --- a/arch/powerpc/include/uapi/asm/bpf_perf_event.h +++ /dev/null @@ -1,9 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _UAPI__ASM_BPF_PERF_EVENT_H__ -#define _UAPI__ASM_BPF_PERF_EVENT_H__ - -#include <asm/ptrace.h> - -typedef struct user_pt_regs bpf_user_pt_regs_t; - -#endif /* _UAPI__ASM_BPF_PERF_EVENT_H__ */ diff --git a/arch/powerpc/kernel/prom_init_check.sh b/arch/powerpc/kernel/prom_init_check.sh index b183ab9c5107..dfa5f729f774 100644 --- a/arch/powerpc/kernel/prom_init_check.sh +++ b/arch/powerpc/kernel/prom_init_check.sh @@ -13,7 +13,7 @@ # If you really need to reference something from prom_init.o add # it to the list below: -grep "^CONFIG_KASAN=y$" .config >/dev/null +grep "^CONFIG_KASAN=y$" ${KCONFIG_CONFIG} >/dev/null if [ $? -eq 0 ] then MEM_FUNCS="__memcpy __memset" diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 52b77684acda..a97128a48817 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -105,6 +105,37 @@ void __ref arch_remove_linear_mapping(u64 start, u64 size) vm_unmap_aliases(); } +/* + * After memory hotplug the variables max_pfn, max_low_pfn and high_memory need + * updating. + */ +static void update_end_of_memory_vars(u64 start, u64 size) +{ + unsigned long end_pfn = PFN_UP(start + size); + + if (end_pfn > max_pfn) { + max_pfn = end_pfn; + max_low_pfn = end_pfn; + high_memory = (void *)__va(max_pfn * PAGE_SIZE - 1) + 1; + } +} + +int __ref add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages, + struct mhp_params *params) +{ + int ret; + + ret = __add_pages(nid, start_pfn, nr_pages, params); + if (ret) + return ret; + + /* update max_pfn, max_low_pfn and high_memory */ + update_end_of_memory_vars(start_pfn << PAGE_SHIFT, + nr_pages << PAGE_SHIFT); + + return ret; +} + int __ref arch_add_memory(int nid, u64 start, u64 size, struct mhp_params *params) { @@ -115,7 +146,7 @@ int __ref arch_add_memory(int nid, u64 start, u64 size, rc = arch_create_linear_mapping(nid, start, size, params); if (rc) return rc; - rc = __add_pages(nid, start_pfn, nr_pages, params); + rc = add_pages(nid, start_pfn, nr_pages, params); if (rc) arch_remove_linear_mapping(start, size); return rc; diff --git a/arch/powerpc/mm/nohash/book3e_pgtable.c b/arch/powerpc/mm/nohash/book3e_pgtable.c index 7d4368d055a6..b80fc4a91a53 100644 --- a/arch/powerpc/mm/nohash/book3e_pgtable.c +++ b/arch/powerpc/mm/nohash/book3e_pgtable.c @@ -96,8 +96,8 @@ int __ref map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t prot) pgdp = pgd_offset_k(ea); p4dp = p4d_offset(pgdp, ea); if (p4d_none(*p4dp)) { - pmdp = early_alloc_pgtable(PMD_TABLE_SIZE); - p4d_populate(&init_mm, p4dp, pmdp); + pudp = early_alloc_pgtable(PUD_TABLE_SIZE); + p4d_populate(&init_mm, p4dp, pudp); } pudp = pud_offset(p4dp, ea); if (pud_none(*pudp)) { @@ -106,7 +106,7 @@ int __ref map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t prot) } pmdp = pmd_offset(pudp, ea); if (!pmd_present(*pmdp)) { - ptep = early_alloc_pgtable(PAGE_SIZE); + ptep = early_alloc_pgtable(PTE_TABLE_SIZE); pmd_populate_kernel(&init_mm, pmdp, ptep); } ptep = pte_offset_kernel(pmdp, ea); diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c index 7d5128676e83..d02911e78cfc 100644 --- a/arch/powerpc/sysdev/xive/spapr.c +++ b/arch/powerpc/sysdev/xive/spapr.c @@ -15,6 +15,7 @@ #include <linux/of_fdt.h> #include <linux/slab.h> #include <linux/spinlock.h> +#include <linux/bitmap.h> #include <linux/cpumask.h> #include <linux/mm.h> #include <linux/delay.h> @@ -57,7 +58,7 @@ static int __init xive_irq_bitmap_add(int base, int count) spin_lock_init(&xibm->lock); xibm->base = base; xibm->count = count; - xibm->bitmap = kzalloc(xibm->count, GFP_KERNEL); + xibm->bitmap = bitmap_zalloc(xibm->count, GFP_KERNEL); if (!xibm->bitmap) { kfree(xibm); return -ENOMEM; @@ -75,7 +76,7 @@ static void xive_irq_bitmap_remove_all(void) list_for_each_entry_safe(xibm, tmp, &xive_irq_bitmaps, list) { list_del(&xibm->list); - kfree(xibm->bitmap); + bitmap_free(xibm->bitmap); kfree(xibm); } } |