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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-29 16:53:48 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-29 16:53:48 -0700
commit12679a2d7e3bfbdc7586e3e86d1ca90c46659363 (patch)
treed9c00f2e599d1c3e04a349229a6a19906d01f99e /arch/arm/include/asm
parent1c036588772d01655d851f75dffc27c971e072e2 (diff)
parentb0df89868006517417251e02cc4ce5d4b0165885 (diff)
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
Pull more ARM updates from Russell King. This got a fair number of conflicts with the <asm/system.h> split, but also with some other sparse-irq and header file include cleanups. They all looked pretty trivial, though. * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (59 commits) ARM: fix Kconfig warning for HAVE_BPF_JIT ARM: 7361/1: provide XIP_VIRT_ADDR for no-MMU builds ARM: 7349/1: integrator: convert to sparse irqs ARM: 7259/3: net: JIT compiler for packet filters ARM: 7334/1: add jump label support ARM: 7333/2: jump label: detect %c support for ARM ARM: 7338/1: add support for early console output via semihosting ARM: use set_current_blocked() and block_sigmask() ARM: exec: remove redundant set_fs(USER_DS) ARM: 7332/1: extract out code patch function from kprobes ARM: 7331/1: extract out insn generation code from ftrace ARM: 7330/1: ftrace: use canonical Thumb-2 wide instruction format ARM: 7351/1: ftrace: remove useless memory checks ARM: 7316/1: kexec: EOI active and mask all interrupts in kexec crash path ARM: Versatile Express: add NO_IOPORT ARM: get rid of asm/irq.h in asm/prom.h ARM: 7319/1: Print debug info for SIGBUS in user faults ARM: 7318/1: gic: refactor irq_start assignment ARM: 7317/1: irq: avoid NULL check in for_each_irq_desc loop ARM: 7315/1: perf: add support for the Cortex-A7 PMU ...
Diffstat (limited to 'arch/arm/include/asm')
-rw-r--r--arch/arm/include/asm/elf.h4
-rw-r--r--arch/arm/include/asm/hardware/cache-l2x0.h6
-rw-r--r--arch/arm/include/asm/hardware/it8152.h3
-rw-r--r--arch/arm/include/asm/irq.h8
-rw-r--r--arch/arm/include/asm/jump_label.h41
-rw-r--r--arch/arm/include/asm/mc146818rtc.h4
-rw-r--r--arch/arm/include/asm/memory.h2
-rw-r--r--arch/arm/include/asm/mmu_context.h29
-rw-r--r--arch/arm/include/asm/opcodes.h59
-rw-r--r--arch/arm/include/asm/page.h2
-rw-r--r--arch/arm/include/asm/perf_event.h1
-rw-r--r--arch/arm/include/asm/processor.h1
-rw-r--r--arch/arm/include/asm/prom.h2
-rw-r--r--arch/arm/include/asm/tlbflush.h136
-rw-r--r--arch/arm/include/asm/traps.h2
15 files changed, 180 insertions, 120 deletions
diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
index 0e9ce8d9686..38050b1c480 100644
--- a/arch/arm/include/asm/elf.h
+++ b/arch/arm/include/asm/elf.h
@@ -130,8 +130,4 @@ struct mm_struct;
extern unsigned long arch_randomize_brk(struct mm_struct *mm);
#define arch_randomize_brk arch_randomize_brk
-extern int vectors_user_mapping(void);
-#define arch_setup_additional_pages(bprm, uses_interp) vectors_user_mapping()
-#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
-
#endif
diff --git a/arch/arm/include/asm/hardware/cache-l2x0.h b/arch/arm/include/asm/hardware/cache-l2x0.h
index 7df239bcdf2..c4c87bc1223 100644
--- a/arch/arm/include/asm/hardware/cache-l2x0.h
+++ b/arch/arm/include/asm/hardware/cache-l2x0.h
@@ -103,11 +103,11 @@
#define L2X0_ADDR_FILTER_EN 1
#ifndef __ASSEMBLY__
-extern void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask);
+extern void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask);
#if defined(CONFIG_CACHE_L2X0) && defined(CONFIG_OF)
-extern int l2x0_of_init(__u32 aux_val, __u32 aux_mask);
+extern int l2x0_of_init(u32 aux_val, u32 aux_mask);
#else
-static inline int l2x0_of_init(__u32 aux_val, __u32 aux_mask)
+static inline int l2x0_of_init(u32 aux_val, u32 aux_mask)
{
return -ENODEV;
}
diff --git a/arch/arm/include/asm/hardware/it8152.h b/arch/arm/include/asm/hardware/it8152.h
index 43cab498bc2..73f84fa4f36 100644
--- a/arch/arm/include/asm/hardware/it8152.h
+++ b/arch/arm/include/asm/hardware/it8152.h
@@ -9,6 +9,9 @@
#ifndef __ASM_HARDWARE_IT8152_H
#define __ASM_HARDWARE_IT8152_H
+
+#include <mach/irqs.h>
+
extern void __iomem *it8152_base_address;
#define IT8152_IO_BASE (it8152_base_address + 0x03e00000)
diff --git a/arch/arm/include/asm/irq.h b/arch/arm/include/asm/irq.h
index 5a526afb5f1..35c21c375d8 100644
--- a/arch/arm/include/asm/irq.h
+++ b/arch/arm/include/asm/irq.h
@@ -1,14 +1,18 @@
#ifndef __ASM_ARM_IRQ_H
#define __ASM_ARM_IRQ_H
+#define NR_IRQS_LEGACY 16
+
+#ifndef CONFIG_SPARSE_IRQ
#include <mach/irqs.h>
+#else
+#define NR_IRQS NR_IRQS_LEGACY
+#endif
#ifndef irq_canonicalize
#define irq_canonicalize(i) (i)
#endif
-#define NR_IRQS_LEGACY 16
-
/*
* Use this value to indicate lack of interrupt
* capability
diff --git a/arch/arm/include/asm/jump_label.h b/arch/arm/include/asm/jump_label.h
new file mode 100644
index 00000000000..5c5ca2ea62b
--- /dev/null
+++ b/arch/arm/include/asm/jump_label.h
@@ -0,0 +1,41 @@
+#ifndef _ASM_ARM_JUMP_LABEL_H
+#define _ASM_ARM_JUMP_LABEL_H
+
+#ifdef __KERNEL__
+
+#include <linux/types.h>
+#include <asm/system.h>
+
+#define JUMP_LABEL_NOP_SIZE 4
+
+#ifdef CONFIG_THUMB2_KERNEL
+#define JUMP_LABEL_NOP "nop.w"
+#else
+#define JUMP_LABEL_NOP "nop"
+#endif
+
+static __always_inline bool arch_static_branch(struct jump_label_key *key)
+{
+ asm goto("1:\n\t"
+ JUMP_LABEL_NOP "\n\t"
+ ".pushsection __jump_table, \"aw\"\n\t"
+ ".word 1b, %l[l_yes], %c0\n\t"
+ ".popsection\n\t"
+ : : "i" (key) : : l_yes);
+
+ return false;
+l_yes:
+ return true;
+}
+
+#endif /* __KERNEL__ */
+
+typedef u32 jump_label_t;
+
+struct jump_entry {
+ jump_label_t code;
+ jump_label_t target;
+ jump_label_t key;
+};
+
+#endif
diff --git a/arch/arm/include/asm/mc146818rtc.h b/arch/arm/include/asm/mc146818rtc.h
index 6b884d2b0b6..e8567bb99df 100644
--- a/arch/arm/include/asm/mc146818rtc.h
+++ b/arch/arm/include/asm/mc146818rtc.h
@@ -5,7 +5,9 @@
#define _ASM_MC146818RTC_H
#include <linux/io.h>
-#include <mach/irqs.h>
+#include <linux/kernel.h>
+
+#define RTC_IRQ BUILD_BUG_ON(1)
#ifndef RTC_PORT
#define RTC_PORT(x) (0x70 + (x))
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index a8997d71084..fcb575747e5 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -116,6 +116,8 @@
#define MODULES_END (END_MEM)
#define MODULES_VADDR (PHYS_OFFSET)
+#define XIP_VIRT_ADDR(physaddr) (physaddr)
+
#endif /* !CONFIG_MMU */
/*
diff --git a/arch/arm/include/asm/mmu_context.h b/arch/arm/include/asm/mmu_context.h
index 71605d9f8e4..a0b3cac0547 100644
--- a/arch/arm/include/asm/mmu_context.h
+++ b/arch/arm/include/asm/mmu_context.h
@@ -18,6 +18,7 @@
#include <asm/cacheflush.h>
#include <asm/cachetype.h>
#include <asm/proc-fns.h>
+#include <asm-generic/mm_hooks.h>
void __check_kvm_seq(struct mm_struct *mm);
@@ -133,32 +134,4 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next,
#define deactivate_mm(tsk,mm) do { } while (0)
#define activate_mm(prev,next) switch_mm(prev, next, NULL)
-/*
- * We are inserting a "fake" vma for the user-accessible vector page so
- * gdb and friends can get to it through ptrace and /proc/<pid>/mem.
- * But we also want to remove it before the generic code gets to see it
- * during process exit or the unmapping of it would cause total havoc.
- * (the macro is used as remove_vma() is static to mm/mmap.c)
- */
-#define arch_exit_mmap(mm) \
-do { \
- struct vm_area_struct *high_vma = find_vma(mm, 0xffff0000); \
- if (high_vma) { \
- BUG_ON(high_vma->vm_next); /* it should be last */ \
- if (high_vma->vm_prev) \
- high_vma->vm_prev->vm_next = NULL; \
- else \
- mm->mmap = NULL; \
- rb_erase(&high_vma->vm_rb, &mm->mm_rb); \
- mm->mmap_cache = NULL; \
- mm->map_count--; \
- remove_vma(high_vma); \
- } \
-} while (0)
-
-static inline void arch_dup_mmap(struct mm_struct *oldmm,
- struct mm_struct *mm)
-{
-}
-
#endif
diff --git a/arch/arm/include/asm/opcodes.h b/arch/arm/include/asm/opcodes.h
index c0efdd60966..19c48deda70 100644
--- a/arch/arm/include/asm/opcodes.h
+++ b/arch/arm/include/asm/opcodes.h
@@ -17,4 +17,63 @@ extern asmlinkage unsigned int arm_check_condition(u32 opcode, u32 psr);
#define ARM_OPCODE_CONDTEST_PASS 1
#define ARM_OPCODE_CONDTEST_UNCOND 2
+
+/*
+ * Opcode byteswap helpers
+ *
+ * These macros help with converting instructions between a canonical integer
+ * format and in-memory representation, in an endianness-agnostic manner.
+ *
+ * __mem_to_opcode_*() convert from in-memory representation to canonical form.
+ * __opcode_to_mem_*() convert from canonical form to in-memory representation.
+ *
+ *
+ * Canonical instruction representation:
+ *
+ * ARM: 0xKKLLMMNN
+ * Thumb 16-bit: 0x0000KKLL, where KK < 0xE8
+ * Thumb 32-bit: 0xKKLLMMNN, where KK >= 0xE8
+ *
+ * There is no way to distinguish an ARM instruction in canonical representation
+ * from a Thumb instruction (just as these cannot be distinguished in memory).
+ * Where this distinction is important, it needs to be tracked separately.
+ *
+ * Note that values in the range 0x0000E800..0xE7FFFFFF intentionally do not
+ * represent any valid Thumb-2 instruction. For this range,
+ * __opcode_is_thumb32() and __opcode_is_thumb16() will both be false.
+ */
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+#include <linux/swab.h>
+
+#ifdef CONFIG_CPU_ENDIAN_BE8
+#define __opcode_to_mem_arm(x) swab32(x)
+#define __opcode_to_mem_thumb16(x) swab16(x)
+#define __opcode_to_mem_thumb32(x) swahb32(x)
+#else
+#define __opcode_to_mem_arm(x) ((u32)(x))
+#define __opcode_to_mem_thumb16(x) ((u16)(x))
+#define __opcode_to_mem_thumb32(x) swahw32(x)
+#endif
+
+#define __mem_to_opcode_arm(x) __opcode_to_mem_arm(x)
+#define __mem_to_opcode_thumb16(x) __opcode_to_mem_thumb16(x)
+#define __mem_to_opcode_thumb32(x) __opcode_to_mem_thumb32(x)
+
+/* Operations specific to Thumb opcodes */
+
+/* Instruction size checks: */
+#define __opcode_is_thumb32(x) ((u32)(x) >= 0xE8000000UL)
+#define __opcode_is_thumb16(x) ((u32)(x) < 0xE800UL)
+
+/* Operations to construct or split 32-bit Thumb instructions: */
+#define __opcode_thumb32_first(x) ((u16)((x) >> 16))
+#define __opcode_thumb32_second(x) ((u16)(x))
+#define __opcode_thumb32_compose(first, second) \
+ (((u32)(u16)(first) << 16) | (u32)(u16)(second))
+
+#endif /* __ASSEMBLY__ */
+
#endif /* __ASM_ARM_OPCODES_H */
diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h
index 97b440c25c5..5838361c48b 100644
--- a/arch/arm/include/asm/page.h
+++ b/arch/arm/include/asm/page.h
@@ -151,6 +151,8 @@ extern void __cpu_copy_user_highpage(struct page *to, struct page *from,
#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
extern void copy_page(void *to, const void *from);
+#define __HAVE_ARCH_GATE_AREA 1
+
#ifdef CONFIG_ARM_LPAE
#include <asm/pgtable-3level-types.h>
#else
diff --git a/arch/arm/include/asm/perf_event.h b/arch/arm/include/asm/perf_event.h
index 7523340afb8..00cbe10a50e 100644
--- a/arch/arm/include/asm/perf_event.h
+++ b/arch/arm/include/asm/perf_event.h
@@ -22,6 +22,7 @@ enum arm_perf_pmu_ids {
ARM_PERF_PMU_ID_CA9,
ARM_PERF_PMU_ID_CA5,
ARM_PERF_PMU_ID_CA15,
+ ARM_PERF_PMU_ID_CA7,
ARM_NUM_PMU_IDS,
};
diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index f4d7f56ee51..5ac8d3d3e02 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -55,7 +55,6 @@ struct thread_struct {
#define start_thread(regs,pc,sp) \
({ \
unsigned long *stack = (unsigned long *)sp; \
- set_fs(USER_DS); \
memset(regs->uregs, 0, sizeof(regs->uregs)); \
if (current->personality & ADDR_LIMIT_32BIT) \
regs->ARM_cpsr = USR_MODE; \
diff --git a/arch/arm/include/asm/prom.h b/arch/arm/include/asm/prom.h
index ee036330791..aeae9c609df 100644
--- a/arch/arm/include/asm/prom.h
+++ b/arch/arm/include/asm/prom.h
@@ -13,8 +13,6 @@
#ifdef CONFIG_OF
-#include <asm/irq.h>
-
extern struct machine_desc *setup_machine_fdt(unsigned int dt_phys);
extern void arm_dt_memblock_reserve(void);
diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index 02b2f820398..85fe61e7320 100644
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -318,6 +318,21 @@ extern struct cpu_tlb_fns cpu_tlb;
#define tlb_flag(f) ((always_tlb_flags & (f)) || (__tlb_flag & possible_tlb_flags & (f)))
+#define __tlb_op(f, insnarg, arg) \
+ do { \
+ if (always_tlb_flags & (f)) \
+ asm("mcr " insnarg \
+ : : "r" (arg) : "cc"); \
+ else if (possible_tlb_flags & (f)) \
+ asm("tst %1, %2\n\t" \
+ "mcrne " insnarg \
+ : : "r" (arg), "r" (__tlb_flag), "Ir" (f) \
+ : "cc"); \
+ } while (0)
+
+#define tlb_op(f, regs, arg) __tlb_op(f, "p15, 0, %0, " regs, arg)
+#define tlb_l2_op(f, regs, arg) __tlb_op(f, "p15, 1, %0, " regs, arg)
+
static inline void local_flush_tlb_all(void)
{
const int zero = 0;
@@ -326,16 +341,11 @@ static inline void local_flush_tlb_all(void)
if (tlb_flag(TLB_WB))
dsb();
- if (tlb_flag(TLB_V3_FULL))
- asm("mcr p15, 0, %0, c6, c0, 0" : : "r" (zero) : "cc");
- if (tlb_flag(TLB_V4_U_FULL | TLB_V6_U_FULL))
- asm("mcr p15, 0, %0, c8, c7, 0" : : "r" (zero) : "cc");
- if (tlb_flag(TLB_V4_D_FULL | TLB_V6_D_FULL))
- asm("mcr p15, 0, %0, c8, c6, 0" : : "r" (zero) : "cc");
- if (tlb_flag(TLB_V4_I_FULL | TLB_V6_I_FULL))
- asm("mcr p15, 0, %0, c8, c5, 0" : : "r" (zero) : "cc");
- if (tlb_flag(TLB_V7_UIS_FULL))
- asm("mcr p15, 0, %0, c8, c3, 0" : : "r" (zero) : "cc");
+ tlb_op(TLB_V3_FULL, "c6, c0, 0", zero);
+ tlb_op(TLB_V4_U_FULL | TLB_V6_U_FULL, "c8, c7, 0", zero);
+ tlb_op(TLB_V4_D_FULL | TLB_V6_D_FULL, "c8, c6, 0", zero);
+ tlb_op(TLB_V4_I_FULL | TLB_V6_I_FULL, "c8, c5, 0", zero);
+ tlb_op(TLB_V7_UIS_FULL, "c8, c3, 0", zero);
if (tlb_flag(TLB_BARRIER)) {
dsb();
@@ -352,29 +362,23 @@ static inline void local_flush_tlb_mm(struct mm_struct *mm)
if (tlb_flag(TLB_WB))
dsb();
- if (cpumask_test_cpu(get_cpu(), mm_cpumask(mm))) {
- if (tlb_flag(TLB_V3_FULL))
- asm("mcr p15, 0, %0, c6, c0, 0" : : "r" (zero) : "cc");
- if (tlb_flag(TLB_V4_U_FULL))
- asm("mcr p15, 0, %0, c8, c7, 0" : : "r" (zero) : "cc");
- if (tlb_flag(TLB_V4_D_FULL))
- asm("mcr p15, 0, %0, c8, c6, 0" : : "r" (zero) : "cc");
- if (tlb_flag(TLB_V4_I_FULL))
- asm("mcr p15, 0, %0, c8, c5, 0" : : "r" (zero) : "cc");
+ if (possible_tlb_flags & (TLB_V3_FULL|TLB_V4_U_FULL|TLB_V4_D_FULL|TLB_V4_I_FULL)) {
+ if (cpumask_test_cpu(get_cpu(), mm_cpumask(mm))) {
+ tlb_op(TLB_V3_FULL, "c6, c0, 0", zero);
+ tlb_op(TLB_V4_U_FULL, "c8, c7, 0", zero);
+ tlb_op(TLB_V4_D_FULL, "c8, c6, 0", zero);
+ tlb_op(TLB_V4_I_FULL, "c8, c5, 0", zero);
+ }
+ put_cpu();
}
- put_cpu();
-
- if (tlb_flag(TLB_V6_U_ASID))
- asm("mcr p15, 0, %0, c8, c7, 2" : : "r" (asid) : "cc");
- if (tlb_flag(TLB_V6_D_ASID))
- asm("mcr p15, 0, %0, c8, c6, 2" : : "r" (asid) : "cc");
- if (tlb_flag(TLB_V6_I_ASID))
- asm("mcr p15, 0, %0, c8, c5, 2" : : "r" (asid) : "cc");
- if (tlb_flag(TLB_V7_UIS_ASID))
+
+ tlb_op(TLB_V6_U_ASID, "c8, c7, 2", asid);
+ tlb_op(TLB_V6_D_ASID, "c8, c6, 2", asid);
+ tlb_op(TLB_V6_I_ASID, "c8, c5, 2", asid);
#ifdef CONFIG_ARM_ERRATA_720789
- asm("mcr p15, 0, %0, c8, c3, 0" : : "r" (zero) : "cc");
+ tlb_op(TLB_V7_UIS_ASID, "c8, c3, 0", zero);
#else
- asm("mcr p15, 0, %0, c8, c3, 2" : : "r" (asid) : "cc");
+ tlb_op(TLB_V7_UIS_ASID, "c8, c3, 2", asid);
#endif
if (tlb_flag(TLB_BARRIER))
@@ -392,30 +396,23 @@ local_flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
if (tlb_flag(TLB_WB))
dsb();
- if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) {
- if (tlb_flag(TLB_V3_PAGE))
- asm("mcr p15, 0, %0, c6, c0, 0" : : "r" (uaddr) : "cc");
- if (tlb_flag(TLB_V4_U_PAGE))
- asm("mcr p15, 0, %0, c8, c7, 1" : : "r" (uaddr) : "cc");
- if (tlb_flag(TLB_V4_D_PAGE))
- asm("mcr p15, 0, %0, c8, c6, 1" : : "r" (uaddr) : "cc");
- if (tlb_flag(TLB_V4_I_PAGE))
- asm("mcr p15, 0, %0, c8, c5, 1" : : "r" (uaddr) : "cc");
+ if (possible_tlb_flags & (TLB_V3_PAGE|TLB_V4_U_PAGE|TLB_V4_D_PAGE|TLB_V4_I_PAGE|TLB_V4_I_FULL) &&
+ cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) {
+ tlb_op(TLB_V3_PAGE, "c6, c0, 0", uaddr);
+ tlb_op(TLB_V4_U_PAGE, "c8, c7, 1", uaddr);
+ tlb_op(TLB_V4_D_PAGE, "c8, c6, 1", uaddr);
+ tlb_op(TLB_V4_I_PAGE, "c8, c5, 1", uaddr);
if (!tlb_flag(TLB_V4_I_PAGE) && tlb_flag(TLB_V4_I_FULL))
asm("mcr p15, 0, %0, c8, c5, 0" : : "r" (zero) : "cc");
}
- if (tlb_flag(TLB_V6_U_PAGE))
- asm("mcr p15, 0, %0, c8, c7, 1" : : "r" (uaddr) : "cc");
- if (tlb_flag(TLB_V6_D_PAGE))
- asm("mcr p15, 0, %0, c8, c6, 1" : : "r" (uaddr) : "cc");
- if (tlb_flag(TLB_V6_I_PAGE))
- asm("mcr p15, 0, %0, c8, c5, 1" : : "r" (uaddr) : "cc");
- if (tlb_flag(TLB_V7_UIS_PAGE))
+ tlb_op(TLB_V6_U_PAGE, "c8, c7, 1", uaddr);
+ tlb_op(TLB_V6_D_PAGE, "c8, c6, 1", uaddr);
+ tlb_op(TLB_V6_I_PAGE, "c8, c5, 1", uaddr);
#ifdef CONFIG_ARM_ERRATA_720789
- asm("mcr p15, 0, %0, c8, c3, 3" : : "r" (uaddr & PAGE_MASK) : "cc");
+ tlb_op(TLB_V7_UIS_PAGE, "c8, c3, 3", uaddr & PAGE_MASK);
#else
- asm("mcr p15, 0, %0, c8, c3, 1" : : "r" (uaddr) : "cc");
+ tlb_op(TLB_V7_UIS_PAGE, "c8, c3, 1", uaddr);
#endif
if (tlb_flag(TLB_BARRIER))
@@ -432,25 +429,17 @@ static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
if (tlb_flag(TLB_WB))
dsb();
- if (tlb_flag(TLB_V3_PAGE))
- asm("mcr p15, 0, %0, c6, c0, 0" : : "r" (kaddr) : "cc");
- if (tlb_flag(TLB_V4_U_PAGE))
- asm("mcr p15, 0, %0, c8, c7, 1" : : "r" (kaddr) : "cc");
- if (tlb_flag(TLB_V4_D_PAGE))
- asm("mcr p15, 0, %0, c8, c6, 1" : : "r" (kaddr) : "cc");
- if (tlb_flag(TLB_V4_I_PAGE))
- asm("mcr p15, 0, %0, c8, c5, 1" : : "r" (kaddr) : "cc");
+ tlb_op(TLB_V3_PAGE, "c6, c0, 0", kaddr);
+ tlb_op(TLB_V4_U_PAGE, "c8, c7, 1", kaddr);
+ tlb_op(TLB_V4_D_PAGE, "c8, c6, 1", kaddr);
+ tlb_op(TLB_V4_I_PAGE, "c8, c5, 1", kaddr);
if (!tlb_flag(TLB_V4_I_PAGE) && tlb_flag(TLB_V4_I_FULL))
asm("mcr p15, 0, %0, c8, c5, 0" : : "r" (zero) : "cc");
- if (tlb_flag(TLB_V6_U_PAGE))
- asm("mcr p15, 0, %0, c8, c7, 1" : : "r" (kaddr) : "cc");
- if (tlb_flag(TLB_V6_D_PAGE))
- asm("mcr p15, 0, %0, c8, c6, 1" : : "r" (kaddr) : "cc");
- if (tlb_flag(TLB_V6_I_PAGE))
- asm("mcr p15, 0, %0, c8, c5, 1" : : "r" (kaddr) : "cc");
- if (tlb_flag(TLB_V7_UIS_PAGE))
- asm("mcr p15, 0, %0, c8, c3, 1" : : "r" (kaddr) : "cc");
+ tlb_op(TLB_V6_U_PAGE, "c8, c7, 1", kaddr);
+ tlb_op(TLB_V6_D_PAGE, "c8, c6, 1", kaddr);
+ tlb_op(TLB_V6_I_PAGE, "c8, c5, 1", kaddr);
+ tlb_op(TLB_V7_UIS_PAGE, "c8, c3, 1", kaddr);
if (tlb_flag(TLB_BARRIER)) {
dsb();
@@ -475,13 +464,8 @@ static inline void flush_pmd_entry(void *pmd)
{
const unsigned int __tlb_flag = __cpu_tlb_flags;
- if (tlb_flag(TLB_DCLEAN))
- asm("mcr p15, 0, %0, c7, c10, 1 @ flush_pmd"
- : : "r" (pmd) : "cc");
-
- if (tlb_flag(TLB_L2CLEAN_FR))
- asm("mcr p15, 1, %0, c15, c9, 1 @ L2 flush_pmd"
- : : "r" (pmd) : "cc");
+ tlb_op(TLB_DCLEAN, "c7, c10, 1 @ flush_pmd", pmd);
+ tlb_l2_op(TLB_L2CLEAN_FR, "c15, c9, 1 @ L2 flush_pmd", pmd);
if (tlb_flag(TLB_WB))
dsb();
@@ -491,15 +475,11 @@ static inline void clean_pmd_entry(void *pmd)
{
const unsigned int __tlb_flag = __cpu_tlb_flags;
- if (tlb_flag(TLB_DCLEAN))
- asm("mcr p15, 0, %0, c7, c10, 1 @ flush_pmd"
- : : "r" (pmd) : "cc");
-
- if (tlb_flag(TLB_L2CLEAN_FR))
- asm("mcr p15, 1, %0, c15, c9, 1 @ L2 flush_pmd"
- : : "r" (pmd) : "cc");
+ tlb_op(TLB_DCLEAN, "c7, c10, 1 @ flush_pmd", pmd);
+ tlb_l2_op(TLB_L2CLEAN_FR, "c15, c9, 1 @ L2 flush_pmd", pmd);
}
+#undef tlb_op
#undef tlb_flag
#undef always_tlb_flags
#undef possible_tlb_flags
diff --git a/arch/arm/include/asm/traps.h b/arch/arm/include/asm/traps.h
index 5b29a667362..f555bb3664d 100644
--- a/arch/arm/include/asm/traps.h
+++ b/arch/arm/include/asm/traps.h
@@ -46,7 +46,7 @@ static inline int in_exception_text(unsigned long ptr)
return in ? : __in_irqentry_text(ptr);
}
-extern void __init early_trap_init(void);
+extern void __init early_trap_init(void *);
extern void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame);
extern void ptrace_break(struct task_struct *tsk, struct pt_regs *regs);