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-rw-r--r--arch/arm/include/asm/assembler.h9
-rw-r--r--arch/arm/include/asm/bitops.h4
-rw-r--r--arch/arm/include/asm/dma-mapping.h88
-rw-r--r--arch/arm/include/asm/dma.h11
-rw-r--r--arch/arm/include/asm/entry-macro-multi.S14
-rw-r--r--arch/arm/include/asm/hwcap.h36
-rw-r--r--arch/arm/include/asm/kprobes.h28
-rw-r--r--arch/arm/include/asm/mach/arch.h4
-rw-r--r--arch/arm/include/asm/memory.h12
-rw-r--r--arch/arm/include/asm/perf_event.h2
-rw-r--r--arch/arm/include/asm/pmu.h2
-rw-r--r--arch/arm/include/asm/proc-fns.h14
-rw-r--r--arch/arm/include/asm/ptrace.h11
-rw-r--r--arch/arm/include/asm/scatterlist.h4
-rw-r--r--arch/arm/include/asm/setup.h8
-rw-r--r--arch/arm/include/asm/suspend.h22
-rw-r--r--arch/arm/include/asm/tcm.h2
-rw-r--r--arch/arm/include/asm/tlbflush.h58
-rw-r--r--arch/arm/include/asm/traps.h3
19 files changed, 135 insertions, 197 deletions
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 65c3f2474f5..29035e86a59 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -293,4 +293,13 @@
.macro ldrusr, reg, ptr, inc, cond=al, rept=1, abort=9001f
usracc ldr, \reg, \ptr, \inc, \cond, \rept, \abort
.endm
+
+/* Utility macro for declaring string literals */
+ .macro string name:req, string
+ .type \name , #object
+\name:
+ .asciz "\string"
+ .size \name , . - \name
+ .endm
+
#endif /* __ASM_ASSEMBLER_H__ */
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
index b4892a06442..f4280593dfa 100644
--- a/arch/arm/include/asm/bitops.h
+++ b/arch/arm/include/asm/bitops.h
@@ -26,8 +26,8 @@
#include <linux/compiler.h>
#include <asm/system.h>
-#define smp_mb__before_clear_bit() mb()
-#define smp_mb__after_clear_bit() mb()
+#define smp_mb__before_clear_bit() smp_mb()
+#define smp_mb__after_clear_bit() smp_mb()
/*
* These functions are the basis of our bit ops.
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 4fff837363e..7a21d0bf713 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -115,39 +115,8 @@ static inline void __dma_page_dev_to_cpu(struct page *page, unsigned long off,
___dma_page_dev_to_cpu(page, off, size, dir);
}
-/*
- * Return whether the given device DMA address mask can be supported
- * properly. For example, if your device can only drive the low 24-bits
- * during bus mastering, then you would pass 0x00ffffff as the mask
- * to this function.
- *
- * FIXME: This should really be a platform specific issue - we should
- * return false if GFP_DMA allocations may not satisfy the supplied 'mask'.
- */
-static inline int dma_supported(struct device *dev, u64 mask)
-{
- if (mask < ISA_DMA_THRESHOLD)
- return 0;
- return 1;
-}
-
-static inline int dma_set_mask(struct device *dev, u64 dma_mask)
-{
-#ifdef CONFIG_DMABOUNCE
- if (dev->archdata.dmabounce) {
- if (dma_mask >= ISA_DMA_THRESHOLD)
- return 0;
- else
- return -EIO;
- }
-#endif
- if (!dev->dma_mask || !dma_supported(dev, dma_mask))
- return -EIO;
-
- *dev->dma_mask = dma_mask;
-
- return 0;
-}
+extern int dma_supported(struct device *, u64);
+extern int dma_set_mask(struct device *, u64);
/*
* DMA errors are defined by all-bits-set in the DMA address.
@@ -256,14 +225,14 @@ int dma_mmap_writecombine(struct device *, struct vm_area_struct *,
* @dev: valid struct device pointer
* @small_buf_size: size of buffers to use with small buffer pool
* @large_buf_size: size of buffers to use with large buffer pool (can be 0)
+ * @needs_bounce_fn: called to determine whether buffer needs bouncing
*
* This function should be called by low-level platform code to register
* a device as requireing DMA buffer bouncing. The function will allocate
* appropriate DMA pools for the device.
- *
*/
extern int dmabounce_register_dev(struct device *, unsigned long,
- unsigned long);
+ unsigned long, int (*)(struct device *, dma_addr_t, size_t));
/**
* dmabounce_unregister_dev
@@ -277,31 +246,9 @@ extern int dmabounce_register_dev(struct device *, unsigned long,
*/
extern void dmabounce_unregister_dev(struct device *);
-/**
- * dma_needs_bounce
- *
- * @dev: valid struct device pointer
- * @dma_handle: dma_handle of unbounced buffer
- * @size: size of region being mapped
- *
- * Platforms that utilize the dmabounce mechanism must implement
- * this function.
- *
- * The dmabounce routines call this function whenever a dma-mapping
- * is requested to determine whether a given buffer needs to be bounced
- * or not. The function must return 0 if the buffer is OK for
- * DMA access and 1 if the buffer needs to be bounced.
- *
- */
-extern int dma_needs_bounce(struct device*, dma_addr_t, size_t);
-
/*
* The DMA API, implemented by dmabounce.c. See below for descriptions.
*/
-extern dma_addr_t __dma_map_single(struct device *, void *, size_t,
- enum dma_data_direction);
-extern void __dma_unmap_single(struct device *, dma_addr_t, size_t,
- enum dma_data_direction);
extern dma_addr_t __dma_map_page(struct device *, struct page *,
unsigned long, size_t, enum dma_data_direction);
extern void __dma_unmap_page(struct device *, dma_addr_t, size_t,
@@ -328,13 +275,6 @@ static inline int dmabounce_sync_for_device(struct device *d, dma_addr_t addr,
}
-static inline dma_addr_t __dma_map_single(struct device *dev, void *cpu_addr,
- size_t size, enum dma_data_direction dir)
-{
- __dma_single_cpu_to_dev(cpu_addr, size, dir);
- return virt_to_dma(dev, cpu_addr);
-}
-
static inline dma_addr_t __dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size, enum dma_data_direction dir)
{
@@ -342,12 +282,6 @@ static inline dma_addr_t __dma_map_page(struct device *dev, struct page *page,
return pfn_to_dma(dev, page_to_pfn(page)) + offset;
}
-static inline void __dma_unmap_single(struct device *dev, dma_addr_t handle,
- size_t size, enum dma_data_direction dir)
-{
- __dma_single_dev_to_cpu(dma_to_virt(dev, handle), size, dir);
-}
-
static inline void __dma_unmap_page(struct device *dev, dma_addr_t handle,
size_t size, enum dma_data_direction dir)
{
@@ -373,14 +307,18 @@ static inline void __dma_unmap_page(struct device *dev, dma_addr_t handle,
static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
size_t size, enum dma_data_direction dir)
{
+ unsigned long offset;
+ struct page *page;
dma_addr_t addr;
+ BUG_ON(!virt_addr_valid(cpu_addr));
+ BUG_ON(!virt_addr_valid(cpu_addr + size - 1));
BUG_ON(!valid_dma_direction(dir));
- addr = __dma_map_single(dev, cpu_addr, size, dir);
- debug_dma_map_page(dev, virt_to_page(cpu_addr),
- (unsigned long)cpu_addr & ~PAGE_MASK, size,
- dir, addr, true);
+ page = virt_to_page(cpu_addr);
+ offset = (unsigned long)cpu_addr & ~PAGE_MASK;
+ addr = __dma_map_page(dev, page, offset, size, dir);
+ debug_dma_map_page(dev, page, offset, size, dir, addr, true);
return addr;
}
@@ -430,7 +368,7 @@ static inline void dma_unmap_single(struct device *dev, dma_addr_t handle,
size_t size, enum dma_data_direction dir)
{
debug_dma_unmap_page(dev, handle, size, dir, true);
- __dma_unmap_single(dev, handle, size, dir);
+ __dma_unmap_page(dev, handle, size, dir);
}
/**
diff --git a/arch/arm/include/asm/dma.h b/arch/arm/include/asm/dma.h
index 42005542932..628670e9d7c 100644
--- a/arch/arm/include/asm/dma.h
+++ b/arch/arm/include/asm/dma.h
@@ -1,15 +1,16 @@
#ifndef __ASM_ARM_DMA_H
#define __ASM_ARM_DMA_H
-#include <asm/memory.h>
-
/*
* This is the maximum virtual address which can be DMA'd from.
*/
-#ifndef ARM_DMA_ZONE_SIZE
-#define MAX_DMA_ADDRESS 0xffffffff
+#ifndef CONFIG_ZONE_DMA
+#define MAX_DMA_ADDRESS 0xffffffffUL
#else
-#define MAX_DMA_ADDRESS (PAGE_OFFSET + ARM_DMA_ZONE_SIZE)
+#define MAX_DMA_ADDRESS ({ \
+ extern unsigned long arm_dma_zone_size; \
+ arm_dma_zone_size ? \
+ (PAGE_OFFSET + arm_dma_zone_size) : 0xffffffffUL; })
#endif
#ifdef CONFIG_ISA_DMA_API
diff --git a/arch/arm/include/asm/entry-macro-multi.S b/arch/arm/include/asm/entry-macro-multi.S
index 2da8547de6d..2f1e2098dfe 100644
--- a/arch/arm/include/asm/entry-macro-multi.S
+++ b/arch/arm/include/asm/entry-macro-multi.S
@@ -4,8 +4,8 @@
* Interrupt handling. Preserves r7, r8, r9
*/
.macro arch_irq_handler_default
- get_irqnr_preamble r5, lr
-1: get_irqnr_and_base r0, r6, r5, lr
+ get_irqnr_preamble r6, lr
+1: get_irqnr_and_base r0, r2, r6, lr
movne r1, sp
@
@ routine called with r0 = irq number, r1 = struct pt_regs *
@@ -17,17 +17,17 @@
/*
* XXX
*
- * this macro assumes that irqstat (r6) and base (r5) are
+ * this macro assumes that irqstat (r2) and base (r6) are
* preserved from get_irqnr_and_base above
*/
- ALT_SMP(test_for_ipi r0, r6, r5, lr)
+ ALT_SMP(test_for_ipi r0, r2, r6, lr)
ALT_UP_B(9997f)
movne r1, sp
adrne lr, BSYM(1b)
bne do_IPI
#ifdef CONFIG_LOCAL_TIMERS
- test_for_ltirq r0, r6, r5, lr
+ test_for_ltirq r0, r2, r6, lr
movne r0, sp
adrne lr, BSYM(1b)
bne do_local_timer
@@ -40,7 +40,7 @@
.align 5
.global \symbol_name
\symbol_name:
- mov r4, lr
+ mov r8, lr
arch_irq_handler_default
- mov pc, r4
+ mov pc, r8
.endm
diff --git a/arch/arm/include/asm/hwcap.h b/arch/arm/include/asm/hwcap.h
index c1062c31710..c93a22a8b92 100644
--- a/arch/arm/include/asm/hwcap.h
+++ b/arch/arm/include/asm/hwcap.h
@@ -4,22 +4,26 @@
/*
* HWCAP flags - for elf_hwcap (in kernel) and AT_HWCAP
*/
-#define HWCAP_SWP 1
-#define HWCAP_HALF 2
-#define HWCAP_THUMB 4
-#define HWCAP_26BIT 8 /* Play it safe */
-#define HWCAP_FAST_MULT 16
-#define HWCAP_FPA 32
-#define HWCAP_VFP 64
-#define HWCAP_EDSP 128
-#define HWCAP_JAVA 256
-#define HWCAP_IWMMXT 512
-#define HWCAP_CRUNCH 1024
-#define HWCAP_THUMBEE 2048
-#define HWCAP_NEON 4096
-#define HWCAP_VFPv3 8192
-#define HWCAP_VFPv3D16 16384
-#define HWCAP_TLS 32768
+#define HWCAP_SWP (1 << 0)
+#define HWCAP_HALF (1 << 1)
+#define HWCAP_THUMB (1 << 2)
+#define HWCAP_26BIT (1 << 3) /* Play it safe */
+#define HWCAP_FAST_MULT (1 << 4)
+#define HWCAP_FPA (1 << 5)
+#define HWCAP_VFP (1 << 6)
+#define HWCAP_EDSP (1 << 7)
+#define HWCAP_JAVA (1 << 8)
+#define HWCAP_IWMMXT (1 << 9)
+#define HWCAP_CRUNCH (1 << 10)
+#define HWCAP_THUMBEE (1 << 11)
+#define HWCAP_NEON (1 << 12)
+#define HWCAP_VFPv3 (1 << 13)
+#define HWCAP_VFPv3D16 (1 << 14)
+#define HWCAP_TLS (1 << 15)
+#define HWCAP_VFPv4 (1 << 16)
+#define HWCAP_IDIVA (1 << 17)
+#define HWCAP_IDIVT (1 << 18)
+#define HWCAP_IDIV (HWCAP_IDIVA | HWCAP_IDIVT)
#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
/*
diff --git a/arch/arm/include/asm/kprobes.h b/arch/arm/include/asm/kprobes.h
index e46bdd0097e..feec86768f9 100644
--- a/arch/arm/include/asm/kprobes.h
+++ b/arch/arm/include/asm/kprobes.h
@@ -24,12 +24,6 @@
#define MAX_INSN_SIZE 2
#define MAX_STACK_SIZE 64 /* 32 would probably be OK */
-/*
- * This undefined instruction must be unique and
- * reserved solely for kprobes' use.
- */
-#define KPROBE_BREAKPOINT_INSTRUCTION 0xe7f001f8
-
#define regs_return_value(regs) ((regs)->ARM_r0)
#define flush_insn_slot(p) do { } while (0)
#define kretprobe_blacklist_size 0
@@ -38,14 +32,17 @@ typedef u32 kprobe_opcode_t;
struct kprobe;
typedef void (kprobe_insn_handler_t)(struct kprobe *, struct pt_regs *);
-
typedef unsigned long (kprobe_check_cc)(unsigned long);
+typedef void (kprobe_insn_singlestep_t)(struct kprobe *, struct pt_regs *);
+typedef void (kprobe_insn_fn_t)(void);
/* Architecture specific copy of original instruction. */
struct arch_specific_insn {
- kprobe_opcode_t *insn;
- kprobe_insn_handler_t *insn_handler;
- kprobe_check_cc *insn_check_cc;
+ kprobe_opcode_t *insn;
+ kprobe_insn_handler_t *insn_handler;
+ kprobe_check_cc *insn_check_cc;
+ kprobe_insn_singlestep_t *insn_singlestep;
+ kprobe_insn_fn_t *insn_fn;
};
struct prev_kprobe {
@@ -62,20 +59,9 @@ struct kprobe_ctlblk {
};
void arch_remove_kprobe(struct kprobe *);
-void kretprobe_trampoline(void);
-
int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
int kprobe_exceptions_notify(struct notifier_block *self,
unsigned long val, void *data);
-enum kprobe_insn {
- INSN_REJECTED,
- INSN_GOOD,
- INSN_GOOD_NO_SLOT
-};
-
-enum kprobe_insn arm_kprobe_decode_insn(kprobe_opcode_t,
- struct arch_specific_insn *);
-void __init arm_kprobe_decode_init(void);
#endif /* _ARM_KPROBES_H */
diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h
index 946f4d778f7..3281fb4b12e 100644
--- a/arch/arm/include/asm/mach/arch.h
+++ b/arch/arm/include/asm/mach/arch.h
@@ -23,6 +23,10 @@ struct machine_desc {
unsigned int nr_irqs; /* number of IRQs */
+#ifdef CONFIG_ZONE_DMA
+ unsigned long dma_zone_size; /* size of DMA-able area */
+#endif
+
unsigned int video_start; /* start of video RAM */
unsigned int video_end; /* end of video RAM */
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index af44a8fb348..b8de516e600 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -204,18 +204,6 @@ static inline unsigned long __phys_to_virt(unsigned long x)
#endif
/*
- * The DMA mask corresponding to the maximum bus address allocatable
- * using GFP_DMA. The default here places no restriction on DMA
- * allocations. This must be the smallest DMA mask in the system,
- * so a successful GFP_DMA allocation will always satisfy this.
- */
-#ifndef ARM_DMA_ZONE_SIZE
-#define ISA_DMA_THRESHOLD (0xffffffffULL)
-#else
-#define ISA_DMA_THRESHOLD (PHYS_OFFSET + ARM_DMA_ZONE_SIZE - 1)
-#endif
-
-/*
* PFNs are used to describe any physical page; this means
* PFN 0 == physical address 0.
*
diff --git a/arch/arm/include/asm/perf_event.h b/arch/arm/include/asm/perf_event.h
index c4aa4e8c6af..0f8e3827a89 100644
--- a/arch/arm/include/asm/perf_event.h
+++ b/arch/arm/include/asm/perf_event.h
@@ -24,6 +24,8 @@ enum arm_perf_pmu_ids {
ARM_PERF_PMU_ID_V6MP,
ARM_PERF_PMU_ID_CA8,
ARM_PERF_PMU_ID_CA9,
+ ARM_PERF_PMU_ID_CA5,
+ ARM_PERF_PMU_ID_CA15,
ARM_NUM_PMU_IDS,
};
diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h
index 7544ce6b481..67c70a31a1b 100644
--- a/arch/arm/include/asm/pmu.h
+++ b/arch/arm/include/asm/pmu.h
@@ -52,7 +52,7 @@ reserve_pmu(enum arm_pmu_type device);
* a cookie.
*/
extern int
-release_pmu(struct platform_device *pdev);
+release_pmu(enum arm_pmu_type type);
/**
* init_pmu() - Initialise the PMU.
diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h
index 8ec535e11fd..633d1cb84d8 100644
--- a/arch/arm/include/asm/proc-fns.h
+++ b/arch/arm/include/asm/proc-fns.h
@@ -82,13 +82,13 @@ extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext);
extern void cpu_reset(unsigned long addr) __attribute__((noreturn));
#else
-#define cpu_proc_init() processor._proc_init()
-#define cpu_proc_fin() processor._proc_fin()
-#define cpu_reset(addr) processor.reset(addr)
-#define cpu_do_idle() processor._do_idle()
-#define cpu_dcache_clean_area(addr,sz) processor.dcache_clean_area(addr,sz)
-#define cpu_set_pte_ext(ptep,pte,ext) processor.set_pte_ext(ptep,pte,ext)
-#define cpu_do_switch_mm(pgd,mm) processor.switch_mm(pgd,mm)
+#define cpu_proc_init processor._proc_init
+#define cpu_proc_fin processor._proc_fin
+#define cpu_reset processor.reset
+#define cpu_do_idle processor._do_idle
+#define cpu_dcache_clean_area processor.dcache_clean_area
+#define cpu_set_pte_ext processor.set_pte_ext
+#define cpu_do_switch_mm processor.switch_mm
#endif
extern void cpu_resume(void);
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h
index 312d10877bd..96187ff58c2 100644
--- a/arch/arm/include/asm/ptrace.h
+++ b/arch/arm/include/asm/ptrace.h
@@ -69,8 +69,9 @@
#define PSR_c 0x000000ff /* Control */
/*
- * ARMv7 groups of APSR bits
+ * ARMv7 groups of PSR bits
*/
+#define APSR_MASK 0xf80f0000 /* N, Z, C, V, Q and GE flags */
#define PSR_ISET_MASK 0x01000010 /* ISA state (J, T) mask */
#define PSR_IT_MASK 0x0600fc00 /* If-Then execution state mask */
#define PSR_ENDIAN_MASK 0x00000200 /* Endianness state mask */
@@ -200,6 +201,14 @@ extern unsigned long profile_pc(struct pt_regs *regs);
#define PREDICATE_ALWAYS 0xe0000000
/*
+ * True if instr is a 32-bit thumb instruction. This works if instr
+ * is the first or only half-word of a thumb instruction. It also works
+ * when instr holds all 32-bits of a wide thumb instruction if stored
+ * in the form (first_half<<16)|(second_half)
+ */
+#define is_wide_instruction(instr) ((unsigned)(instr) >= 0xe800)
+
+/*
* kprobe-based event tracer support
*/
#include <linux/stddef.h>
diff --git a/arch/arm/include/asm/scatterlist.h b/arch/arm/include/asm/scatterlist.h
index 2f87870d934..cefdb8f898a 100644
--- a/arch/arm/include/asm/scatterlist.h
+++ b/arch/arm/include/asm/scatterlist.h
@@ -1,6 +1,10 @@
#ifndef _ASMARM_SCATTERLIST_H
#define _ASMARM_SCATTERLIST_H
+#ifdef CONFIG_ARM_HAS_SG_CHAIN
+#define ARCH_HAS_SG_CHAIN
+#endif
+
#include <asm/memory.h>
#include <asm/types.h>
#include <asm-generic/scatterlist.h>
diff --git a/arch/arm/include/asm/setup.h b/arch/arm/include/asm/setup.h
index ee2ad8ae07a..915696dd9c7 100644
--- a/arch/arm/include/asm/setup.h
+++ b/arch/arm/include/asm/setup.h
@@ -187,12 +187,16 @@ struct tagtable {
#define __tag __used __attribute__((__section__(".taglist.init")))
#define __tagtable(tag, fn) \
-static struct tagtable __tagtable_##fn __tag = { tag, fn }
+static const struct tagtable __tagtable_##fn __tag = { tag, fn }
/*
* Memory map description
*/
-#define NR_BANKS 8
+#ifdef CONFIG_ARCH_EP93XX
+# define NR_BANKS 16
+#else
+# define NR_BANKS 8
+#endif
struct membank {
phys_addr_t start;
diff --git a/arch/arm/include/asm/suspend.h b/arch/arm/include/asm/suspend.h
new file mode 100644
index 00000000000..b0e4e1a0231
--- /dev/null
+++ b/arch/arm/include/asm/suspend.h
@@ -0,0 +1,22 @@
+#ifndef __ASM_ARM_SUSPEND_H
+#define __ASM_ARM_SUSPEND_H
+
+#include <asm/memory.h>
+#include <asm/tlbflush.h>
+
+extern void cpu_resume(void);
+
+/*
+ * Hide the first two arguments to __cpu_suspend - these are an implementation
+ * detail which platform code shouldn't have to know about.
+ */
+static inline int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
+{
+ extern int __cpu_suspend(int, long, unsigned long,
+ int (*)(unsigned long));
+ int ret = __cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, arg, fn);
+ flush_tlb_all();
+ return ret;
+}
+
+#endif
diff --git a/arch/arm/include/asm/tcm.h b/arch/arm/include/asm/tcm.h
index 5929ef5d927..8578d726ad7 100644
--- a/arch/arm/include/asm/tcm.h
+++ b/arch/arm/include/asm/tcm.h
@@ -27,5 +27,7 @@
void *tcm_alloc(size_t len);
void tcm_free(void *addr, size_t len);
+bool tcm_dtcm_present(void);
+bool tcm_itcm_present(void);
#endif
diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index d2005de383b..8077145698f 100644
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -34,16 +34,12 @@
#define TLB_V6_D_ASID (1 << 17)
#define TLB_V6_I_ASID (1 << 18)
-#define TLB_BTB (1 << 28)
-
/* Unified Inner Shareable TLB operations (ARMv7 MP extensions) */
#define TLB_V7_UIS_PAGE (1 << 19)
#define TLB_V7_UIS_FULL (1 << 20)
#define TLB_V7_UIS_ASID (1 << 21)
-/* Inner Shareable BTB operation (ARMv7 MP extensions) */
-#define TLB_V7_IS_BTB (1 << 22)
-
+#define TLB_BARRIER (1 << 28)
#define TLB_L2CLEAN_FR (1 << 29) /* Feroceon */
#define TLB_DCLEAN (1 << 30)
#define TLB_WB (1 << 31)
@@ -58,7 +54,7 @@
* v4wb - ARMv4 with write buffer without I TLB flush entry instruction
* v4wbi - ARMv4 with write buffer with I TLB flush entry instruction
* fr - Feroceon (v4wbi with non-outer-cacheable page table walks)
- * fa - Faraday (v4 with write buffer with UTLB and branch target buffer (BTB))
+ * fa - Faraday (v4 with write buffer with UTLB)
* v6wbi - ARMv6 with write buffer with I TLB flush entry instruction
* v7wbi - identical to v6wbi
*/
@@ -99,7 +95,7 @@
# define v4_always_flags (-1UL)
#endif
-#define fa_tlb_flags (TLB_WB | TLB_BTB | TLB_DCLEAN | \
+#define fa_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BARRIER | \
TLB_V4_U_FULL | TLB_V4_U_PAGE)
#ifdef CONFIG_CPU_TLB_FA
@@ -166,7 +162,7 @@
# define v4wb_always_flags (-1UL)
#endif
-#define v6wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BTB | \
+#define v6wbi_tlb_flags (TLB_WB | TLB_DCLEAN | TLB_BARRIER | \
TLB_V6_I_FULL | TLB_V6_D_FULL | \
TLB_V6_I_PAGE | TLB_V6_D_PAGE | \
TLB_V6_I_ASID | TLB_V6_D_ASID)
@@ -184,9 +180,9 @@
# define v6wbi_always_flags (-1UL)
#endif
-#define v7wbi_tlb_flags_smp (TLB_WB | TLB_DCLEAN | TLB_V7_IS_BTB | \
+#define v7wbi_tlb_flags_smp (TLB_WB | TLB_DCLEAN | TLB_BARRIER | \
TLB_V7_UIS_FULL | TLB_V7_UIS_PAGE | TLB_V7_UIS_ASID)
-#define v7wbi_tlb_flags_up (TLB_WB | TLB_DCLEAN | TLB_BTB | \
+#define v7wbi_tlb_flags_up (TLB_WB | TLB_DCLEAN | TLB_BARRIER | \
TLB_V6_U_FULL | TLB_V6_U_PAGE | TLB_V6_U_ASID)
#ifdef CONFIG_CPU_TLB_V7
@@ -341,15 +337,7 @@ static inline void local_flush_tlb_all(void)
if (tlb_flag(TLB_V7_UIS_FULL))
asm("mcr p15, 0, %0, c8, c3, 0" : : "r" (zero) : "cc");
- if (tlb_flag(TLB_BTB)) {
- /* flush the branch target cache */
- asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
- dsb();
- isb();
- }
- if (tlb_flag(TLB_V7_IS_BTB)) {
- /* flush the branch target cache */
- asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
+ if (tlb_flag(TLB_BARRIER)) {
dsb();
isb();
}
@@ -389,17 +377,8 @@ static inline void local_flush_tlb_mm(struct mm_struct *mm)
asm("mcr p15, 0, %0, c8, c3, 2" : : "r" (asid) : "cc");
#endif
- if (tlb_flag(TLB_BTB)) {
- /* flush the branch target cache */
- asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
- dsb();
- }
- if (tlb_flag(TLB_V7_IS_BTB)) {
- /* flush the branch target cache */
- asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
+ if (tlb_flag(TLB_BARRIER))
dsb();
- isb();
- }
}
static inline void
@@ -439,17 +418,8 @@ local_flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
asm("mcr p15, 0, %0, c8, c3, 1" : : "r" (uaddr) : "cc");
#endif
- if (tlb_flag(TLB_BTB)) {
- /* flush the branch target cache */
- asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
- dsb();
- }
- if (tlb_flag(TLB_V7_IS_BTB)) {
- /* flush the branch target cache */
- asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
+ if (tlb_flag(TLB_BARRIER))
dsb();
- isb();
- }
}
static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
@@ -482,15 +452,7 @@ static inline void local_flush_tlb_kernel_page(unsigned long kaddr)
if (tlb_flag(TLB_V7_UIS_PAGE))
asm("mcr p15, 0, %0, c8, c3, 1" : : "r" (kaddr) : "cc");
- if (tlb_flag(TLB_BTB)) {
- /* flush the branch target cache */
- asm("mcr p15, 0, %0, c7, c5, 6" : : "r" (zero) : "cc");
- dsb();
- isb();
- }
- if (tlb_flag(TLB_V7_IS_BTB)) {
- /* flush the branch target cache */
- asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero) : "cc");
+ if (tlb_flag(TLB_BARRIER)) {
dsb();
isb();
}
diff --git a/arch/arm/include/asm/traps.h b/arch/arm/include/asm/traps.h
index f90756dc16d..5b29a667362 100644
--- a/arch/arm/include/asm/traps.h
+++ b/arch/arm/include/asm/traps.h
@@ -3,6 +3,9 @@
#include <linux/list.h>
+struct pt_regs;
+struct task_struct;
+
struct undef_hook {
struct list_head node;
u32 instr_mask;