[PATCH] powerpc: Add pgprot_writecombine
flat view
STALE5688d
From: Anton Blanchard <hidden>
Date: 2011-03-01 06:00:47
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
A number of drivers are using pgprot_writecombine() to enable write combining on userspace mappings. Implement it on powerpc. Signed-off-by: Anton Blanchard <redacted> ---
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 89f1587..88b0bd9 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h@@ -170,6 +170,7 @@ extern int ptep_set_access_flags(struct vm_area_struct *vma, unsigned long addre #define pgprot_cached_wthru(prot) (__pgprot((pgprot_val(prot) & ~_PAGE_CACHE_CTL) | \ _PAGE_COHERENT | _PAGE_WRITETHRU)) +#define pgprot_writecombine pgprot_noncached_wc struct file; extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,