Re: [PATCH 1/5] mm: add coherence API for DMA to vmalloc/vmap areas

[James Bottomley <James.Bottomley@HansenPartnership.com>]

On Wed, 2009-09-09 at 12:35 +0900, Paul Mundt wrote:
> And here I thought it was a new gcc construct along the lines of
> inline-if-so-inclined.. :-)

Actually, I missed the fact that sh also sets
ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE, so you'll need implementations of
these functions too.  Does this look right?

James

---

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index 4c5462d..db06611 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -48,6 +48,14 @@ static inline void flush_kernel_dcache_page(struct page *page)
 {
 	flush_dcache_page(page);
 }
+static inline void flush_kernel_dcache_addr(void *addr)
+{
+	__flush_invalidate_region(addr, PAGE_SIZE);
+}
+static inline void invalidate_kernel_dcache_addr(void *addr)
+{
+	__flush_invalidate_region(addr, PAGE_SIZE);
+}
 
 #if defined(CONFIG_CPU_SH4) && !defined(CONFIG_CACHE_OFF)
 extern void copy_to_user_page(struct vm_area_struct *vma,