xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARM: kill off arch_is_coherent

Browse Source 
With ixp2xxx removed, there are no platforms that define arch_is_coherent,
so the last occurrences of arch_is_coherent can be removed. Any new
platform with coherent i/o should use coherent dma mapping functions.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
This commit is contained in:
Rob Herring
2012-08-21 12:26:24 +02:00
committed by Marek Szyprowski
parent 0fa478df44
commit 48aa820f1e
3 changed files with 6 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
arch/arm/include/asm/barrier.h
View File

@@ -44,10 +44,9 @@
#define rmb() dsb()
#define wmb() mb()
#else
#include <asm/memory.h>
#define mb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
#define rmb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
#define wmb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
#define mb() barrier()
#define rmb() barrier()
#define wmb() barrier()
#endif
#ifndef CONFIG_SMP