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| author | Geoff Thorpe <geoff@geoffthorpe.net> | 2011-10-27 02:58:45 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-11-25 14:32:52 +1100 |
| commit | 09c188c4f6b331dbb61a2b5bd05d4c89c733fe33 (patch) | |
| tree | 5d5692bdce877b00a1687b875bad17886f28412a | |
| parent | e8d2c47352453606fdfef17742ab4154262f937d (diff) | |
| download | blackbird-obmc-linux-09c188c4f6b331dbb61a2b5bd05d4c89c733fe33.tar.gz blackbird-obmc-linux-09c188c4f6b331dbb61a2b5bd05d4c89c733fe33.zip | |
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>
| -rw-r--r-- | arch/powerpc/include/asm/pgtable.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h index 88b0bd925a8b..2e0e4110f7ae 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; |
