Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into common/serial-rework

Conflicts:
	arch/sh/kernel/cpu/sh2/setup-sh7619.c
	arch/sh/kernel/cpu/sh2a/setup-mxg.c
	arch/sh/kernel/cpu/sh2a/setup-sh7201.c
	arch/sh/kernel/cpu/sh2a/setup-sh7203.c
	arch/sh/kernel/cpu/sh2a/setup-sh7206.c
	arch/sh/kernel/cpu/sh3/setup-sh7705.c
	arch/sh/kernel/cpu/sh3/setup-sh770x.c
	arch/sh/kernel/cpu/sh3/setup-sh7710.c
	arch/sh/kernel/cpu/sh3/setup-sh7720.c
	arch/sh/kernel/cpu/sh4/setup-sh4-202.c
	arch/sh/kernel/cpu/sh4/setup-sh7750.c
	arch/sh/kernel/cpu/sh4/setup-sh7760.c
	arch/sh/kernel/cpu/sh4a/setup-sh7343.c
	arch/sh/kernel/cpu/sh4a/setup-sh7366.c
	arch/sh/kernel/cpu/sh4a/setup-sh7722.c
	arch/sh/kernel/cpu/sh4a/setup-sh7723.c
	arch/sh/kernel/cpu/sh4a/setup-sh7724.c
	arch/sh/kernel/cpu/sh4a/setup-sh7763.c
	arch/sh/kernel/cpu/sh4a/setup-sh7770.c
	arch/sh/kernel/cpu/sh4a/setup-sh7780.c
	arch/sh/kernel/cpu/sh4a/setup-sh7785.c
	arch/sh/kernel/cpu/sh4a/setup-sh7786.c
	arch/sh/kernel/cpu/sh4a/setup-shx3.c
	arch/sh/kernel/cpu/sh5/setup-sh5.c
	drivers/serial/sh-sci.c
	drivers/serial/sh-sci.h
	include/linux/serial_sci.h

1 files changed, 77 insertions, 52 deletions

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index 4c5462daa74..82e1eabeac9 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -3,45 +3,74 @@
 
 #ifdef __KERNEL__
 
-#ifdef CONFIG_CACHE_OFF
+#include <linux/mm.h>
+
 /*
- * Nothing to do when the cache is disabled, initial flush and explicit
- * disabling is handled at CPU init time.
+ * Cache flushing:
+ *
+ *  - flush_cache_all() flushes entire cache
+ *  - flush_cache_mm(mm) flushes the specified mm context's cache lines
+ *  - flush_cache_dup mm(mm) handles cache flushing when forking
+ *  - flush_cache_page(mm, vmaddr, pfn) flushes a single page
+ *  - flush_cache_range(vma, start, end) flushes a range of pages
  *
- * See arch/sh/kernel/cpu/init.c:cache_init().
+ *  - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache
+ *  - flush_icache_range(start, end) flushes(invalidates) a range for icache
+ *  - flush_icache_page(vma, pg) flushes(invalidates) a page for icache
+ *  - flush_cache_sigtramp(vaddr) flushes the signal trampoline
  */
-#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>
+extern void (*local_flush_cache_all)(void *args);
+extern void (*local_flush_cache_mm)(void *args);
+extern void (*local_flush_cache_dup_mm)(void *args);
+extern void (*local_flush_cache_page)(void *args);
+extern void (*local_flush_cache_range)(void *args);
+extern void (*local_flush_dcache_page)(void *args);
+extern void (*local_flush_icache_range)(void *args);
+extern void (*local_flush_icache_page)(void *args);
+extern void (*local_flush_cache_sigtramp)(void *args);
 
-/*
- * 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.
- */
+static inline void cache_noop(void *args) { }
 
-/* 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
+extern void (*__flush_wback_region)(void *start, int size);
+extern void (*__flush_purge_region)(void *start, int size);
+extern void (*__flush_invalidate_region)(void *start, int size);
+
+extern void flush_cache_all(void);
+extern void flush_cache_mm(struct mm_struct *mm);
+extern void flush_cache_dup_mm(struct mm_struct *mm);
+extern void flush_cache_page(struct vm_area_struct *vma,
+				unsigned long addr, unsigned long pfn);
+extern void flush_cache_range(struct vm_area_struct *vma,
+				 unsigned long start, unsigned long end);
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
+extern void flush_dcache_page(struct page *page);
+extern void flush_icache_range(unsigned long start, unsigned long end);
+extern void flush_icache_page(struct vm_area_struct *vma,
+				 struct page *page);
+extern void flush_cache_sigtramp(unsigned long address);
+
+struct flusher_data {
+	struct vm_area_struct *vma;
+	unsigned long addr1, addr2;
+};
+
+#define ARCH_HAS_FLUSH_ANON_PAGE
+extern void __flush_anon_page(struct page *page, unsigned long);
+
+static inline void flush_anon_page(struct vm_area_struct *vma,
+				   struct page *page, unsigned long vmaddr)
+{
+	if (boot_cpu_data.dcache.n_aliases && PageAnon(page))
+		__flush_anon_page(page, vmaddr);
+}
+static inline void flush_kernel_vmap_range(void *addr, int size)
+{
+	__flush_wback_region(addr, size);
+}
+static inline void invalidate_kernel_vmap_range(void *addr, int size)
+{
+	__flush_invalidate_region(addr, size);
+}
 
 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
 static inline void flush_kernel_dcache_page(struct page *page)
@@ -49,7 +78,6 @@ 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);
@@ -57,23 +85,20 @@ extern void copy_to_user_page(struct vm_area_struct *vma,
 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 flush_cache_vmap(start, end)		local_flush_cache_all(NULL)
+#define flush_cache_vunmap(start, end)		local_flush_cache_all(NULL)
+
+#define flush_dcache_mmap_lock(mapping)		do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
+
+void kmap_coherent_init(void);
+void *kmap_coherent(struct page *page, unsigned long addr);
+void kunmap_coherent(void *kvaddr);
+
+#define PG_dcache_clean	PG_arch_1
+
+void cpu_cache_init(void);
 
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_CACHEFLUSH_H */