sh: migrate to arch/sh/include/
This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac.
Most of the moving about was done with Sam's directions at:
http://marc.info/?l=linux-sh&m=121724823706062&w=2
with subsequent hacking and fixups entirely my fault.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
new file mode 100644
index 0000000..09acbc3
--- /dev/null
+++ b/arch/sh/include/asm/cacheflush.h
@@ -0,0 +1,81 @@
+#ifndef __ASM_SH_CACHEFLUSH_H
+#define __ASM_SH_CACHEFLUSH_H
+
+#ifdef __KERNEL__
+
+#ifdef CONFIG_CACHE_OFF
+/*
+ * Nothing to do when the cache is disabled, initial flush and explicit
+ * disabling is handled at CPU init time.
+ *
+ * See arch/sh/kernel/cpu/init.c:cache_init().
+ */
+#define p3_cache_init() do { } while (0)
+#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_icache_range(start, end) do { } while (0)
+#define flush_icache_page(vma,pg) do { } while (0)
+#define flush_dcache_mmap_lock(mapping) do { } while (0)
+#define flush_dcache_mmap_unlock(mapping) do { } while (0)
+#define flush_cache_sigtramp(vaddr) do { } while (0)
+#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
+#define __flush_wback_region(start, size) do { (void)(start); } while (0)
+#define __flush_purge_region(start, size) do { (void)(start); } while (0)
+#define __flush_invalidate_region(start, size) do { (void)(start); } while (0)
+#else
+#include <cpu/cacheflush.h>
+
+/*
+ * Consistent DMA requires that the __flush_xxx() primitives must be set
+ * for any of the enabled non-coherent caches (most of the UP CPUs),
+ * regardless of PIPT or VIPT cache configurations.
+ */
+
+/* Flush (write-back only) a region (smaller than a page) */
+extern void __flush_wback_region(void *start, int size);
+/* Flush (write-back & invalidate) a region (smaller than a page) */
+extern void __flush_purge_region(void *start, int size);
+/* Flush (invalidate only) a region (smaller than a page) */
+extern void __flush_invalidate_region(void *start, int size);
+#endif
+
+#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
+static inline void flush_kernel_dcache_page(struct page *page)
+{
+ flush_dcache_page(page);
+}
+
+#if defined(CONFIG_CPU_SH4) && !defined(CONFIG_CACHE_OFF)
+extern void copy_to_user_page(struct vm_area_struct *vma,
+ struct page *page, unsigned long vaddr, void *dst, const void *src,
+ unsigned long len);
+
+extern void copy_from_user_page(struct vm_area_struct *vma,
+ struct page *page, unsigned long vaddr, void *dst, const void *src,
+ unsigned long len);
+#else
+#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_icache_user_range(vma, page, vaddr, 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)
+#endif
+
+#define flush_cache_vmap(start, end) flush_cache_all()
+#define flush_cache_vunmap(start, end) flush_cache_all()
+
+#define HAVE_ARCH_UNMAPPED_AREA
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_SH_CACHEFLUSH_H */