Merge tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic updates from Arnd Bergmann:
 "The asm-generic tree contains three separate changes for linux-5.19:

   - The h8300 architecture is retired after it has been effectively
     unmaintained for a number of years. This is the last architecture
     we supported that has no MMU implementation, but there are still a
     few architectures (arm, m68k, riscv, sh and xtensa) that support
     CPUs with and without an MMU.

   - A series to add a generic ticket spinlock that can be shared by
     most architectures with a working cmpxchg or ll/sc type atomic,
     including the conversion of riscv, csky and openrisc. This series
     is also a prerequisite for the loongarch64 architecture port that
     will come as a separate pull request.

   - A cleanup of some exported uapi header files to ensure they can be
     included from user space without relying on other kernel headers"

* tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  h8300: remove stale bindings and symlink
  sparc: add asm/stat.h to UAPI compile-test coverage
  powerpc: add asm/stat.h to UAPI compile-test coverage
  mips: add asm/stat.h to UAPI compile-test coverage
  riscv: add linux/bpf_perf_event.h to UAPI compile-test coverage
  kbuild: prevent exported headers from including <stdlib.h>, <stdbool.h>
  agpgart.h: do not include <stdlib.h> from exported header
  csky: Move to generic ticket-spinlock
  RISC-V: Move to queued RW locks
  RISC-V: Move to generic spinlocks
  openrisc: Move to ticket-spinlock
  asm-generic: qrwlock: Document the spinlock fairness requirements
  asm-generic: qspinlock: Indicate the use of mixed-size atomics
  asm-generic: ticket-lock: New generic ticket-based spinlock
  remove the h8300 architecture

4 files changed, 0 insertions, 206 deletions

diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 2bd5ffd595bf..21cb96b022e6 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -85,7 +85,6 @@ obj-$(CONFIG_CLK_BAIKAL_T1)		+= baikal-t1/
 obj-y					+= bcm/
 obj-$(CONFIG_ARCH_BERLIN)		+= berlin/
 obj-$(CONFIG_ARCH_DAVINCI)		+= davinci/
-obj-$(CONFIG_H8300)			+= h8300/
 obj-$(CONFIG_ARCH_HISI)			+= hisilicon/
 obj-y					+= imgtec/
 obj-y					+= imx/
diff --git a/drivers/clk/h8300/Makefile b/drivers/clk/h8300/Makefile
deleted file mode 100644
index 8078a0b79000..000000000000
--- a/drivers/clk/h8300/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-obj-y += clk-div.o
-obj-$(CONFIG_H8S2678) += clk-h8s2678.o
diff --git a/drivers/clk/h8300/clk-div.c b/drivers/clk/h8300/clk-div.c
deleted file mode 100644
index 376be03bb546..000000000000
--- a/drivers/clk/h8300/clk-div.c
+++ /dev/null
@@ -1,57 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * H8/300 divide clock driver
- *
- * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-#include <linux/clk-provider.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-
-static DEFINE_SPINLOCK(clklock);
-
-static void __init h8300_div_clk_setup(struct device_node *node)
-{
-	unsigned int num_parents;
-	struct clk_hw *hw;
-	const char *clk_name = node->name;
-	const char *parent_name;
-	void __iomem *divcr = NULL;
-	int width;
-	int offset;
-
-	num_parents = of_clk_get_parent_count(node);
-	if (!num_parents) {
-		pr_err("%s: no parent found\n", clk_name);
-		return;
-	}
-
-	divcr = of_iomap(node, 0);
-	if (divcr == NULL) {
-		pr_err("%s: failed to map divide register\n", clk_name);
-		goto error;
-	}
-	offset = (unsigned long)divcr & 3;
-	offset = (3 - offset) * 8;
-	divcr = (void __iomem *)((unsigned long)divcr & ~3);
-
-	parent_name = of_clk_get_parent_name(node, 0);
-	of_property_read_u32(node, "renesas,width", &width);
-	hw = clk_hw_register_divider(NULL, clk_name, parent_name,
-				   CLK_SET_RATE_GATE, divcr, offset, width,
-				   CLK_DIVIDER_POWER_OF_TWO, &clklock);
-	if (!IS_ERR(hw)) {
-		of_clk_add_hw_provider(node, of_clk_hw_simple_get, hw);
-		return;
-	}
-	pr_err("%s: failed to register %s div clock (%ld)\n",
-	       __func__, clk_name, PTR_ERR(hw));
-error:
-	if (divcr)
-		iounmap(divcr);
-}
-
-CLK_OF_DECLARE(h8300_div_clk, "renesas,h8300-div-clock", h8300_div_clk_setup);
diff --git a/drivers/clk/h8300/clk-h8s2678.c b/drivers/clk/h8300/clk-h8s2678.c
deleted file mode 100644
index 67c495b67c18..000000000000
--- a/drivers/clk/h8300/clk-h8s2678.c
+++ /dev/null
@@ -1,145 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * H8S2678 clock driver
- *
- * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-#include <linux/clk-provider.h>
-#include <linux/device.h>
-#include <linux/io.h>
-#include <linux/err.h>
-#include <linux/of_address.h>
-#include <linux/slab.h>
-
-static DEFINE_SPINLOCK(clklock);
-
-#define MAX_FREQ 33333333
-#define MIN_FREQ  8000000
-
-struct pll_clock {
-	struct clk_hw hw;
-	void __iomem *sckcr;
-	void __iomem *pllcr;
-};
-
-#define to_pll_clock(_hw) container_of(_hw, struct pll_clock, hw)
-
-static unsigned long pll_recalc_rate(struct clk_hw *hw,
-		unsigned long parent_rate)
-{
-	struct pll_clock *pll_clock = to_pll_clock(hw);
-	int mul = 1 << (readb(pll_clock->pllcr) & 3);
-
-	return parent_rate * mul;
-}
-
-static long pll_round_rate(struct clk_hw *hw, unsigned long rate,
-				unsigned long *prate)
-{
-	int i, m = -1;
-	long offset[3];
-
-	if (rate > MAX_FREQ)
-		rate = MAX_FREQ;
-	if (rate < MIN_FREQ)
-		rate = MIN_FREQ;
-
-	for (i = 0; i < 3; i++)
-		offset[i] = abs(rate - (*prate * (1 << i)));
-	for (i = 0; i < 3; i++)
-		if (m < 0)
-			m = i;
-		else
-			m = (offset[i] < offset[m])?i:m;
-
-	return *prate * (1 << m);
-}
-
-static int pll_set_rate(struct clk_hw *hw, unsigned long rate,
-			unsigned long parent_rate)
-{
-	int pll;
-	unsigned char val;
-	unsigned long flags;
-	struct pll_clock *pll_clock = to_pll_clock(hw);
-
-	pll = ((rate / parent_rate) / 2) & 0x03;
-	spin_lock_irqsave(&clklock, flags);
-	val = readb(pll_clock->sckcr);
-	val |= 0x08;
-	writeb(val, pll_clock->sckcr);
-	val = readb(pll_clock->pllcr);
-	val &= ~0x03;
-	val |= pll;
-	writeb(val, pll_clock->pllcr);
-	spin_unlock_irqrestore(&clklock, flags);
-	return 0;
-}
-
-static const struct clk_ops pll_ops = {
-	.recalc_rate = pll_recalc_rate,
-	.round_rate = pll_round_rate,
-	.set_rate = pll_set_rate,
-};
-
-static void __init h8s2678_pll_clk_setup(struct device_node *node)
-{
-	unsigned int num_parents;
-	const char *clk_name = node->name;
-	const char *parent_name;
-	struct pll_clock *pll_clock;
-	struct clk_init_data init;
-	int ret;
-
-	num_parents = of_clk_get_parent_count(node);
-	if (!num_parents) {
-		pr_err("%s: no parent found\n", clk_name);
-		return;
-	}
-
-
-	pll_clock = kzalloc(sizeof(*pll_clock), GFP_KERNEL);
-	if (!pll_clock)
-		return;
-
-	pll_clock->sckcr = of_iomap(node, 0);
-	if (pll_clock->sckcr == NULL) {
-		pr_err("%s: failed to map divide register\n", clk_name);
-		goto free_clock;
-	}
-
-	pll_clock->pllcr = of_iomap(node, 1);
-	if (pll_clock->pllcr == NULL) {
-		pr_err("%s: failed to map multiply register\n", clk_name);
-		goto unmap_sckcr;
-	}
-
-	parent_name = of_clk_get_parent_name(node, 0);
-	init.name = clk_name;
-	init.ops = &pll_ops;
-	init.flags = 0;
-	init.parent_names = &parent_name;
-	init.num_parents = 1;
-	pll_clock->hw.init = &init;
-
-	ret = clk_hw_register(NULL, &pll_clock->hw);
-	if (ret) {
-		pr_err("%s: failed to register %s div clock (%d)\n",
-		       __func__, clk_name, ret);
-		goto unmap_pllcr;
-	}
-
-	of_clk_add_hw_provider(node, of_clk_hw_simple_get, &pll_clock->hw);
-	return;
-
-unmap_pllcr:
-	iounmap(pll_clock->pllcr);
-unmap_sckcr:
-	iounmap(pll_clock->sckcr);
-free_clock:
-	kfree(pll_clock);
-}
-
-CLK_OF_DECLARE(h8s2678_div_clk, "renesas,h8s2678-pll-clock",
-	       h8s2678_pll_clk_setup);