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Diffstat (limited to 'arch/arm/include/asm/cacheflush.h')
-rw-r--r--arch/arm/include/asm/cacheflush.h66
1 files changed, 21 insertions, 45 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 8113bb5fb66e..72da7e045c6b 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -197,21 +197,6 @@
* DMA Cache Coherency
* ===================
*
- * dma_inv_range(start, end)
- *
- * Invalidate (discard) the specified virtual address range.
- * May not write back any entries. If 'start' or 'end'
- * are not cache line aligned, those lines must be written
- * back.
- * - start - virtual start address
- * - end - virtual end address
- *
- * dma_clean_range(start, end)
- *
- * Clean (write back) the specified virtual address range.
- * - start - virtual start address
- * - end - virtual end address
- *
* dma_flush_range(start, end)
*
* Clean and invalidate the specified virtual address range.
@@ -228,8 +213,9 @@ struct cpu_cache_fns {
void (*coherent_user_range)(unsigned long, unsigned long);
void (*flush_kern_dcache_area)(void *, size_t);
- void (*dma_inv_range)(const void *, const void *);
- void (*dma_clean_range)(const void *, const void *);
+ void (*dma_map_area)(const void *, size_t, int);
+ void (*dma_unmap_area)(const void *, size_t, int);
+
void (*dma_flush_range)(const void *, const void *);
};
@@ -259,8 +245,8 @@ extern struct cpu_cache_fns cpu_cache;
* is visible to DMA, or data written by DMA to system memory is
* visible to the CPU.
*/
-#define dmac_inv_range cpu_cache.dma_inv_range
-#define dmac_clean_range cpu_cache.dma_clean_range
+#define dmac_map_area cpu_cache.dma_map_area
+#define dmac_unmap_area cpu_cache.dma_unmap_area
#define dmac_flush_range cpu_cache.dma_flush_range
#else
@@ -285,12 +271,12 @@ extern void __cpuc_flush_dcache_area(void *, size_t);
* is visible to DMA, or data written by DMA to system memory is
* visible to the CPU.
*/
-#define dmac_inv_range __glue(_CACHE,_dma_inv_range)
-#define dmac_clean_range __glue(_CACHE,_dma_clean_range)
+#define dmac_map_area __glue(_CACHE,_dma_map_area)
+#define dmac_unmap_area __glue(_CACHE,_dma_unmap_area)
#define dmac_flush_range __glue(_CACHE,_dma_flush_range)
-extern void dmac_inv_range(const void *, const void *);
-extern void dmac_clean_range(const void *, const void *);
+extern void dmac_map_area(const void *, size_t, int);
+extern void dmac_unmap_area(const void *, size_t, int);
extern void dmac_flush_range(const void *, const void *);
#endif
@@ -331,12 +317,8 @@ static inline void outer_flush_range(unsigned long start, unsigned long end)
* processes address space. Really, we want to allow our "user
* space" model to handle this.
*/
-#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
- do { \
- memcpy(dst, src, len); \
- flush_ptrace_access(vma, page, vaddr, dst, len, 1);\
- } while (0)
-
+extern void copy_to_user_page(struct vm_area_struct *, struct page *,
+ unsigned long, void *, const void *, unsigned long);
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
do { \
memcpy(dst, src, len); \
@@ -370,17 +352,6 @@ vivt_flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsig
}
}
-static inline void
-vivt_flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
- unsigned long uaddr, void *kaddr,
- unsigned long len, int write)
-{
- if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) {
- unsigned long addr = (unsigned long)kaddr;
- __cpuc_coherent_kern_range(addr, addr + len);
- }
-}
-
#ifndef CONFIG_CPU_CACHE_VIPT
#define flush_cache_mm(mm) \
vivt_flush_cache_mm(mm)
@@ -388,15 +359,10 @@ vivt_flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
vivt_flush_cache_range(vma,start,end)
#define flush_cache_page(vma,addr,pfn) \
vivt_flush_cache_page(vma,addr,pfn)
-#define flush_ptrace_access(vma,page,ua,ka,len,write) \
- vivt_flush_ptrace_access(vma,page,ua,ka,len,write)
#else
extern void flush_cache_mm(struct mm_struct *mm);
extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
extern void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned long pfn);
-extern void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
- unsigned long uaddr, void *kaddr,
- unsigned long len, int write);
#endif
#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
@@ -447,6 +413,16 @@ static inline void __flush_icache_all(void)
: "r" (0));
#endif
}
+static inline void flush_kernel_vmap_range(void *addr, int size)
+{
+ if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+ __cpuc_flush_dcache_area(addr, (size_t)size);
+}
+static inline void invalidate_kernel_vmap_range(void *addr, int size)
+{
+ if ((cache_is_vivt() || cache_is_vipt_aliasing()))
+ __cpuc_flush_dcache_area(addr, (size_t)size);
+}
#define ARCH_HAS_FLUSH_ANON_PAGE
static inline void flush_anon_page(struct vm_area_struct *vma,