diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-23 10:22:01 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-23 10:22:01 -0700 |
commit | 5b34653963de7a6d0d8c783527457d68fddc60fb (patch) | |
tree | 1a234741e1823a54cd0514616f783b4cf503a528 /include/asm-x86/cacheflush.h | |
parent | 765426e8ee4c0ab2bc9d44951f4865b8494cdbd0 (diff) | |
parent | 5e1b00758b5a8bee9d42515bffdaf305a32f1b04 (diff) |
Merge branch 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86/um-header' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (26 commits)
x86: canonicalize remaining header guards
x86: drop double underscores from header guards
x86: Fix ASM_X86__ header guards
x86, um: get rid of uml-config.h
x86, um: get rid of arch/um/Kconfig.arch
x86, um: get rid of arch/um/os symlink
x86, um: get rid of excessive includes of uml-config.h
x86, um: get rid of header symlinks
x86, um: merge Kconfig.i386 and Kconfig.x86_64
x86, um: get rid of sysdep symlink
x86, um: trim the junk from uml ptrace-*.h
x86, um: take vm-flags.h to sysdep
x86, um: get rid of uml asm/arch
x86, um: get rid of uml highmem.h
x86, um: get rid of uml unistd.h
x86, um: get rid of system.h -> system.h include
x86, um: uml atomic.h is not needed anymore
x86, um: untangle uml ldt.h
x86, um: get rid of more uml asm/arch uses
x86, um: remove dead header (uml module-generic.h; never used these days)
...
Diffstat (limited to 'include/asm-x86/cacheflush.h')
-rw-r--r-- | include/asm-x86/cacheflush.h | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h deleted file mode 100644 index 68840ef1b35..00000000000 --- a/include/asm-x86/cacheflush.h +++ /dev/null @@ -1,118 +0,0 @@ -#ifndef ASM_X86__CACHEFLUSH_H -#define ASM_X86__CACHEFLUSH_H - -/* Keep includes the same across arches. */ -#include <linux/mm.h> - -/* Caches aren't brain-dead on the intel. */ -#define flush_cache_all() do { } while (0) -#define flush_cache_mm(mm) do { } while (0) -#define flush_cache_dup_mm(mm) do { } while (0) -#define flush_cache_range(vma, start, end) do { } while (0) -#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) -#define flush_dcache_page(page) do { } while (0) -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) -#define flush_icache_range(start, end) do { } while (0) -#define flush_icache_page(vma, pg) do { } while (0) -#define flush_icache_user_range(vma, pg, adr, len) do { } while (0) -#define flush_cache_vmap(start, end) do { } while (0) -#define flush_cache_vunmap(start, end) do { } while (0) - -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ - memcpy((dst), (src), (len)) -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy((dst), (src), (len)) - -#define PG_non_WB PG_arch_1 -PAGEFLAG(NonWB, non_WB) - -/* - * The set_memory_* API can be used to change various attributes of a virtual - * address range. The attributes include: - * Cachability : UnCached, WriteCombining, WriteBack - * Executability : eXeutable, NoteXecutable - * Read/Write : ReadOnly, ReadWrite - * Presence : NotPresent - * - * Within a catagory, the attributes are mutually exclusive. - * - * The implementation of this API will take care of various aspects that - * are associated with changing such attributes, such as: - * - Flushing TLBs - * - Flushing CPU caches - * - Making sure aliases of the memory behind the mapping don't violate - * coherency rules as defined by the CPU in the system. - * - * What this API does not do: - * - Provide exclusion between various callers - including callers that - * operation on other mappings of the same physical page - * - Restore default attributes when a page is freed - * - Guarantee that mappings other than the requested one are - * in any state, other than that these do not violate rules for - * the CPU you have. Do not depend on any effects on other mappings, - * CPUs other than the one you have may have more relaxed rules. - * The caller is required to take care of these. - */ - -int _set_memory_uc(unsigned long addr, int numpages); -int _set_memory_wc(unsigned long addr, int numpages); -int _set_memory_wb(unsigned long addr, int numpages); -int set_memory_uc(unsigned long addr, int numpages); -int set_memory_wc(unsigned long addr, int numpages); -int set_memory_wb(unsigned long addr, int numpages); -int set_memory_x(unsigned long addr, int numpages); -int set_memory_nx(unsigned long addr, int numpages); -int set_memory_ro(unsigned long addr, int numpages); -int set_memory_rw(unsigned long addr, int numpages); -int set_memory_np(unsigned long addr, int numpages); -int set_memory_4k(unsigned long addr, int numpages); - -int set_memory_array_uc(unsigned long *addr, int addrinarray); -int set_memory_array_wb(unsigned long *addr, int addrinarray); - -/* - * For legacy compatibility with the old APIs, a few functions - * are provided that work on a "struct page". - * These functions operate ONLY on the 1:1 kernel mapping of the - * memory that the struct page represents, and internally just - * call the set_memory_* function. See the description of the - * set_memory_* function for more details on conventions. - * - * These APIs should be considered *deprecated* and are likely going to - * be removed in the future. - * The reason for this is the implicit operation on the 1:1 mapping only, - * making this not a generally useful API. - * - * Specifically, many users of the old APIs had a virtual address, - * called virt_to_page() or vmalloc_to_page() on that address to - * get a struct page* that the old API required. - * To convert these cases, use set_memory_*() on the original - * virtual address, do not use these functions. - */ - -int set_pages_uc(struct page *page, int numpages); -int set_pages_wb(struct page *page, int numpages); -int set_pages_x(struct page *page, int numpages); -int set_pages_nx(struct page *page, int numpages); -int set_pages_ro(struct page *page, int numpages); -int set_pages_rw(struct page *page, int numpages); - - -void clflush_cache_range(void *addr, unsigned int size); - -#ifdef CONFIG_DEBUG_RODATA -void mark_rodata_ro(void); -extern const int rodata_test_data; -#endif - -#ifdef CONFIG_DEBUG_RODATA_TEST -int rodata_test(void); -#else -static inline int rodata_test(void) -{ - return 0; -} -#endif - -#endif /* ASM_X86__CACHEFLUSH_H */ |