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authorGeoff Thorpe <geoff@geoffthorpe.net>2011-10-27 02:58:45 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-11-25 14:32:52 +1100
commit09c188c4f6b331dbb61a2b5bd05d4c89c733fe33 (patch)
tree5d5692bdce877b00a1687b875bad17886f28412a /arch/powerpc/include
parente8d2c47352453606fdfef17742ab4154262f937d (diff)
downloadlinaro-lsk-09c188c4f6b331dbb61a2b5bd05d4c89c733fe33.tar.gz
powerpc: Add pgprot_cached_noncoherent()
This adds a pgprot combination required by some cache-enabled IO device mappings, such as Freescale datapath (QMan and BMan) portals. Signed-off-by: Geoff Thorpe <geoff@geoffthorpe.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
-rw-r--r--arch/powerpc/include/asm/pgtable.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 88b0bd925a8..2e0e4110f7a 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -170,6 +170,9 @@ 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_cached_noncoherent(prot) \
+ (__pgprot(pgprot_val(prot) & ~_PAGE_CACHE_CTL))
+
#define pgprot_writecombine pgprot_noncached_wc
struct file;