diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-28 08:33:25 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-28 08:33:25 -0700 |
commit | c32f1a34ff1097110469a240ea4539dc9c101e96 (patch) | |
tree | eda863205e83afe54cbedcf15cdac416cdec2cf5 /arch/sparc/include/asm/cacheflush_64.h | |
parent | 4f31f3080943c7e3541f07df326f06d598a067d0 (diff) | |
parent | 04d91cb8163f7f946e348b2362a6e5dfa5f06b13 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc: Set CONFIG_HAVE_ARCH_TRACEHOOK
sparc: Add task_pt_regs().
sparc: Add call to tracehook_signal_handler().
sparc: Create and use TIF_NOTIFY_RESUME.
sparc: Use tracehook routines in syscall_trace().
sparc64: tracehook: CONFIG_HAVE_ARCH_TRACEHOOK
sparc: Add user_stack_pointer().
sparc64: tracehook_signal_handler
sparc64: tracehook: TIF_NOTIFY_RESUME
sparc: Add asm/syscall.h
sparc64: tracehook syscall
sparc: enable headers_export again
sparc, sparc64: use arch/sparc/include
Diffstat (limited to 'arch/sparc/include/asm/cacheflush_64.h')
-rw-r--r-- | arch/sparc/include/asm/cacheflush_64.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/cacheflush_64.h b/arch/sparc/include/asm/cacheflush_64.h new file mode 100644 index 00000000000..c43321729b3 --- /dev/null +++ b/arch/sparc/include/asm/cacheflush_64.h @@ -0,0 +1,76 @@ +#ifndef _SPARC64_CACHEFLUSH_H +#define _SPARC64_CACHEFLUSH_H + +#include <asm/page.h> + +#ifndef __ASSEMBLY__ + +#include <linux/mm.h> + +/* Cache flush operations. */ + +/* These are the same regardless of whether this is an SMP kernel or not. */ +#define flush_cache_mm(__mm) \ + do { if ((__mm) == current->mm) flushw_user(); } while(0) +#define flush_cache_dup_mm(mm) flush_cache_mm(mm) +#define flush_cache_range(vma, start, end) \ + flush_cache_mm((vma)->vm_mm) +#define flush_cache_page(vma, page, pfn) \ + flush_cache_mm((vma)->vm_mm) + +/* + * On spitfire, the icache doesn't snoop local stores and we don't + * use block commit stores (which invalidate icache lines) during + * module load, so we need this. + */ +extern void flush_icache_range(unsigned long start, unsigned long end); +extern void __flush_icache_page(unsigned long); + +extern void __flush_dcache_page(void *addr, int flush_icache); +extern void flush_dcache_page_impl(struct page *page); +#ifdef CONFIG_SMP +extern void smp_flush_dcache_page_impl(struct page *page, int cpu); +extern void flush_dcache_page_all(struct mm_struct *mm, struct page *page); +#else +#define smp_flush_dcache_page_impl(page,cpu) flush_dcache_page_impl(page) +#define flush_dcache_page_all(mm,page) flush_dcache_page_impl(page) +#endif + +extern void __flush_dcache_range(unsigned long start, unsigned long end); +extern void flush_dcache_page(struct page *page); + +#define flush_icache_page(vma, pg) do { } while(0) +#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) + +extern void flush_ptrace_access(struct vm_area_struct *, struct page *, + unsigned long uaddr, void *kaddr, + unsigned long len, int write); + +#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ + do { \ + flush_cache_page(vma, vaddr, page_to_pfn(page)); \ + memcpy(dst, src, len); \ + flush_ptrace_access(vma, page, vaddr, src, len, 0); \ + } while (0) + +#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ + do { \ + flush_cache_page(vma, vaddr, page_to_pfn(page)); \ + memcpy(dst, src, len); \ + flush_ptrace_access(vma, page, vaddr, dst, len, 1); \ + } while (0) + +#define flush_dcache_mmap_lock(mapping) do { } while (0) +#define flush_dcache_mmap_unlock(mapping) do { } while (0) + +#define flush_cache_vmap(start, end) do { } while (0) +#define flush_cache_vunmap(start, end) do { } while (0) + +#ifdef CONFIG_DEBUG_PAGEALLOC +/* internal debugging function */ +void kernel_map_pages(struct page *page, int numpages, int enable); +#endif + +#endif /* !__ASSEMBLY__ */ + +#endif /* _SPARC64_CACHEFLUSH_H */ |