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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-01 18:15:15 +0100 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-01 18:15:15 +0100 |
commit | ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9 (patch) | |
tree | 816e5ac643b15c2050c64a7075f0f7e13d86ea09 /arch/arm/include/asm/cacheflush.h | |
parent | Merge branch 'for-2.6.34' of git://git.kernel.dk/linux-2.6-block (diff) | |
parent | Merge branches 'clks' and 'pnx' into devel (diff) | |
download | linux-ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9.tar.xz linux-ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9.zip |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (100 commits)
ARM: Eliminate decompressor -Dstatic= PIC hack
ARM: 5958/1: ARM: U300: fix inverted clk round rate
ARM: 5956/1: misplaced parentheses
ARM: 5955/1: ep93xx: move timer defines into core.c and document
ARM: 5954/1: ep93xx: move gpio interrupt support to gpio.c
ARM: 5953/1: ep93xx: fix broken build of clock.c
ARM: 5952/1: ARM: MM: Add ARM_L1_CACHE_SHIFT_6 for handle inside each ARCH Kconfig
ARM: 5949/1: NUC900 add gpio virtual memory map
ARM: 5948/1: Enable timer0 to time4 clock support for nuc910
ARM: 5940/2: ARM: MMCI: remove custom DBG macro and printk
ARM: make_coherent(): fix problems with highpte, part 2
MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself
ARM: 5945/1: ep93xx: include correct irq.h in core.c
ARM: 5933/1: amba-pl011: support hardware flow control
ARM: 5930/1: Add PKMAP area description to memory.txt.
ARM: 5929/1: Add checks to detect overlap of memory regions.
ARM: 5928/1: Change type of VMALLOC_END to unsigned long.
ARM: 5927/1: Make delimiters of DMA area globally visibly.
ARM: 5926/1: Add "Virtual kernel memory..." printout.
ARM: 5920/1: OMAP4: Enable L2 Cache
...
Fix up trivial conflict in arch/arm/mach-mx25/clock.c
Diffstat (limited to 'arch/arm/include/asm/cacheflush.h')
-rw-r--r-- | arch/arm/include/asm/cacheflush.h | 56 |
1 files changed, 11 insertions, 45 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 5fe4a2ad7fa3..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) |