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authorStefan Roese <sr@denx.de>2016-07-18 12:53:31 +0200
committerBin Meng <bmeng.cn@gmail.com>2016-08-16 11:44:09 +0800
commitbf4ea7ed210f27df35315b8089662e84ba7dfadb (patch)
tree37929a9b77ae09cf4b73c169ea6b34e561e71197 /arch/x86
parent37b4a9098c44f4dfc951c495bcc3439c2974b1db (diff)
x86: cache.h: Add default for CONFIG_SYS_CACHELINE_SIZE
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>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/include/asm/cache.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
index 508b63f5ab..4ff63c3331 100644
--- a/arch/x86/include/asm/cache.h
+++ b/arch/x86/include/asm/cache.h
@@ -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");