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x86: cache.h: Add default for CONFIG_SYS_CACHELINE_SIZE

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Don't just define ARCH_DMA_MINALIGN but also CONFIG_SYS_CACHELINE_SIZE
if it's undefined. This is needed for the xhci driver to compile.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Stefan Roese 2016-07-18 12:53:31 +02:00 committed by Bin Meng
parent 37b4a9098c
commit bf4ea7ed21
1 changed files with 4 additions and 4 deletions
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8
arch/x86/include/asm/cache.h
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@ -11,12 +11,12 @@
* If CONFIG_SYS_CACHELINE_SIZE is defined use it for DMA alignment. Otherwise
* use 64-bytes, a safe default for x86.
*/
#ifdef CONFIG_SYS_CACHELINE_SIZE
#define ARCH_DMA_MINALIGN CONFIG_SYS_CACHELINE_SIZE
#else
#define ARCH_DMA_MINALIGN 64
#ifndef CONFIG_SYS_CACHELINE_SIZE
#define CONFIG_SYS_CACHELINE_SIZE 64
#endif
#define ARCH_DMA_MINALIGN CONFIG_SYS_CACHELINE_SIZE
static inline void wbinvd(void)
{
asm volatile ("wbinvd" : : : "memory");