1 files changed, 121 insertions, 0 deletions

diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
new file mode 100644
index 00000000000..b7ca6dc7fdd
--- /dev/null
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -0,0 +1,121 @@
+#ifndef _PARISC_CACHEFLUSH_H
+#define _PARISC_CACHEFLUSH_H
+
+#include <linux/mm.h>
+
+/* The usual comment is "Caches aren't brain-dead on the <architecture>".
+ * Unfortunately, that doesn't apply to PA-RISC. */
+
+/* Internal implementation */
+void flush_data_cache_local(void *);  /* flushes local data-cache only */
+void flush_instruction_cache_local(void *); /* flushes local code-cache only */
+#ifdef CONFIG_SMP
+void flush_data_cache(void); /* flushes data-cache only (all processors) */
+void flush_instruction_cache(void); /* flushes i-cache only (all processors) */
+#else
+#define flush_data_cache() flush_data_cache_local(NULL)
+#define flush_instruction_cache() flush_instruction_cache_local(NULL)
+#endif
+
+#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
+
+void flush_user_icache_range_asm(unsigned long, unsigned long);
+void flush_kernel_icache_range_asm(unsigned long, unsigned long);
+void flush_user_dcache_range_asm(unsigned long, unsigned long);
+void flush_kernel_dcache_range_asm(unsigned long, unsigned long);
+void flush_kernel_dcache_page_asm(void *);
+void flush_kernel_icache_page(void *);
+void flush_user_dcache_page(unsigned long);
+void flush_user_icache_page(unsigned long);
+void flush_user_dcache_range(unsigned long, unsigned long);
+void flush_user_icache_range(unsigned long, unsigned long);
+
+/* Cache flush operations */
+
+void flush_cache_all_local(void);
+void flush_cache_all(void);
+void flush_cache_mm(struct mm_struct *mm);
+
+#define flush_kernel_dcache_range(start,size) \
+        flush_kernel_dcache_range_asm((start), (start)+(size));
+
+#define flush_cache_vmap(start, end)            flush_cache_all()
+#define flush_cache_vunmap(start, end)          flush_cache_all()
+
+extern void flush_dcache_page(struct page *page);
+
+#define flush_dcache_mmap_lock(mapping) \
+        spin_lock_irq(&(mapping)->tree_lock)
+#define flush_dcache_mmap_unlock(mapping) \
+        spin_unlock_irq(&(mapping)->tree_lock)
+
+#define flush_icache_page(vma,page)     do {            \
+        flush_kernel_dcache_page(page);                 \
+        flush_kernel_icache_page(page_address(page));   \
+} while (0)
+
+#define flush_icache_range(s,e)         do {            \
+        flush_kernel_dcache_range_asm(s,e);             \
+        flush_kernel_icache_range_asm(s,e);             \
+} while (0)
+
+#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_kernel_dcache_range_asm((unsigned long)dst, (unsigned long)dst + len); \
+} 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); \
+} while (0)
+
+void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);
+void flush_cache_range(struct vm_area_struct *vma,
+                unsigned long start, unsigned long end);
+
+#define ARCH_HAS_FLUSH_ANON_PAGE
+static inline void
+flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr)
+{
+        if (PageAnon(page))
+                flush_user_dcache_page(vmaddr);
+}
+
+#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
+void flush_kernel_dcache_page_addr(void *addr);
+static inline void flush_kernel_dcache_page(struct page *page)
+{
+        flush_kernel_dcache_page_addr(page_address(page));
+}
+
+#ifdef CONFIG_DEBUG_RODATA
+void mark_rodata_ro(void);
+#endif
+
+#ifdef CONFIG_PA8X00
+/* Only pa8800, pa8900 needs this */
+#define ARCH_HAS_KMAP
+
+void kunmap_parisc(void *addr);
+
+static inline void *kmap(struct page *page)
+{
+        might_sleep();
+        return page_address(page);
+}
+
+#define kunmap(page)                    kunmap_parisc(page_address(page))
+
+#define kmap_atomic(page, idx)          page_address(page)
+
+#define kunmap_atomic(addr, idx)        kunmap_parisc(addr)
+
+#define kmap_atomic_pfn(pfn, idx)       page_address(pfn_to_page(pfn))
+#define kmap_atomic_to_page(ptr)        virt_to_page(ptr)
+#endif
+
+#endif /* _PARISC_CACHEFLUSH_H */
+