[PATCH 1/2] ARM: pgtable: add pgprot_writethrough() macro
STALE5169d
From: Siarhei Siamashka <hidden>
Date: 2012-05-22 19:54:03
Also in:
linux-arm-kernel, linux-omap
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
Revision v1 of 2 in this series.
Revisions (2)
- v1 current
- v1 [diff vs current]
Needed for remapping pages with write-through cacheable attribute. May be useful for framebuffers. Signed-off-by: Siarhei Siamashka <redacted> --- arch/arm/include/asm/pgtable.h | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index f66626d..04297fa 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h@@ -103,6 +103,9 @@ extern pgprot_t pgprot_kernel; #define pgprot_stronglyordered(prot) \ __pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_UNCACHED) +#define pgprot_writethrough(prot) \ + __pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_WRITETHROUGH) + #ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE #define pgprot_dmacoherent(prot) \ __pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_BUFFERABLE | L_PTE_XN)
--
1.7.3.4