Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (28 commits)
  mm/hugetlb.c must #include <asm/io.h>
  video: Fix up hp6xx driver build regressions.
  sh: defconfig updates.
  sh: Kill off stray mach-rsk7203 reference.
  serial: sh-sci: Fix up SH7760/SH7780/SH7785 early printk regression.
  sh: Move out individual boards without mach groups.
  sh: Make sure AT_SYSINFO_EHDR is exposed to userspace in asm/auxvec.h.
  sh: Allow SH-3 and SH-5 to use common headers.
  sh: Provide common CPU headers, prune the SH-2 and SH-2A directories.
  sh/maple: clean maple bus code
  sh: More header path fixups for mach dir refactoring.
  sh: Move out the solution engine headers to arch/sh/include/mach-se/
  sh: I2C fix for AP325RXA and Migo-R
  sh: Shuffle the board directories in to mach groups.
  sh: dma-sh: Fix up dreamcast dma.h mach path.
  sh: Switch KBUILD_DEFCONFIG to shx3_defconfig.
  sh: Add ARCH_DEFCONFIG entries for sh and sh64.
  sh: Fix compile error of Solution Engine
  sh: Proper __put_user_asm() size mismatch fix.
  sh: Stub in a dummy ENTRY_OFFSET for uImage offset calculation.
  ...

1 files changed, 81 insertions, 0 deletions

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
new file mode 100644
index 000000000000..09acbc32d6c7
--- /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 */