From: James Bottomley <jejb@parisc-linux.org>
Date: Wed, 22 Mar 2006 16:42:04 +0000 (-0700)
Subject: [PARISC] Add parisc implementation of flush_kernel_dcache_page()
X-Git-Tag: v2.6.17-rc1~144^2~19
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=ba57583396585a1ca509e2a84d970a2ff3f9bbfb;p=linux-2.6-omap-h63xx.git

[PARISC] Add parisc implementation of flush_kernel_dcache_page()

We need to do a little renaming of our original syntax because
of the difference in arguments.

Signed-off-by: James Bottomley <jejb@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
---

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index d8a4ca021aa..360b7391cb8 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -89,7 +89,7 @@ update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte)
 	if (pfn_valid(page_to_pfn(page)) && page_mapping(page) &&
 	    test_bit(PG_dcache_dirty, &page->flags)) {
 
-		flush_kernel_dcache_page(page_address(page));
+		flush_kernel_dcache_page(page);
 		clear_bit(PG_dcache_dirty, &page->flags);
 	}
 }
@@ -278,7 +278,7 @@ void flush_dcache_page(struct page *page)
 		return;
 	}
 
-	flush_kernel_dcache_page(page_address(page));
+	flush_kernel_dcache_page(page);
 
 	if (!mapping)
 		return;
@@ -317,7 +317,7 @@ EXPORT_SYMBOL(flush_dcache_page);
 
 /* Defined in arch/parisc/kernel/pacache.S */
 EXPORT_SYMBOL(flush_kernel_dcache_range_asm);
-EXPORT_SYMBOL(flush_kernel_dcache_page);
+EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
 EXPORT_SYMBOL(flush_data_cache_local);
 EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 9534ee17b9b..7a4f07e8d3c 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -621,9 +621,9 @@ __clear_user_page_asm:
 
 	.procend
 
-	.export flush_kernel_dcache_page
+	.export flush_kernel_dcache_page_asm
 
-flush_kernel_dcache_page:
+flush_kernel_dcache_page_asm:
 	.proc
 	.callinfo NO_CALLS
 	.entry
diff --git a/include/asm-parisc/cache.h b/include/asm-parisc/cache.h
index ae50f8e12ee..c831665473c 100644
--- a/include/asm-parisc/cache.h
+++ b/include/asm-parisc/cache.h
@@ -48,7 +48,7 @@ extern void flush_user_icache_range_asm(unsigned long, unsigned long);
 extern void flush_kernel_icache_range_asm(unsigned long, unsigned long);
 extern void flush_user_dcache_range_asm(unsigned long, unsigned long);
 extern void flush_kernel_dcache_range_asm(unsigned long, unsigned long);
-extern void flush_kernel_dcache_page(void *);
+extern void flush_kernel_dcache_page_asm(void *);
 extern void flush_kernel_icache_page(void *);
 extern void disable_sr_hashing(void);   /* turns off space register hashing */
 extern void disable_sr_hashing_asm(int); /* low level support for above */
diff --git a/include/asm-parisc/cacheflush.h b/include/asm-parisc/cacheflush.h
index 482be77551e..76b6b7d6046 100644
--- a/include/asm-parisc/cacheflush.h
+++ b/include/asm-parisc/cacheflush.h
@@ -62,7 +62,7 @@ extern void flush_dcache_page(struct page *page);
 #define flush_dcache_mmap_unlock(mapping) \
 	write_unlock_irq(&(mapping)->tree_lock)
 
-#define flush_icache_page(vma,page)	do { flush_kernel_dcache_page(page_address(page)); flush_kernel_icache_page(page_address(page)); } while (0)
+#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)
 
@@ -192,6 +192,13 @@ flush_anon_page(struct page *page, unsigned long vmaddr)
 }
 #define ARCH_HAS_FLUSH_ANON_PAGE
 
+static inline void
+flush_kernel_dcache_page(struct page *page)
+{
+	flush_kernel_dcache_page_asm(page_address(page));
+}
+#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
+
 #ifdef CONFIG_DEBUG_RODATA
 void mark_rodata_ro(void);
 #endif
diff --git a/include/asm-parisc/page.h b/include/asm-parisc/page.h
index 9f303c0c3cd..c6c9d579307 100644
--- a/include/asm-parisc/page.h
+++ b/include/asm-parisc/page.h
@@ -26,7 +26,7 @@ static inline void
 copy_user_page(void *vto, void *vfrom, unsigned long vaddr, struct page *pg)
 {
 	copy_user_page_asm(vto, vfrom);
-	flush_kernel_dcache_page(vto);
+	flush_kernel_dcache_page_asm(vto);
 	/* XXX: ppc flushes icache too, should we? */
 }