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Commit 09c188c4 authored by Geoff Thorpe's avatar Geoff Thorpe Committed by Benjamin Herrenschmidt
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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: default avatarGeoff Thorpe <geoff@geoffthorpe.net>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent e8d2c473

arch/powerpc/include/asm/pgtable.h

+3 −0
Original line number Diff line number Diff line
@@ -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;