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authorAl Viro <viro@zeniv.linux.org.uk>2008-08-18 01:05:42 (GMT)
committerH. Peter Anvin <hpa@zytor.com>2008-10-23 05:55:20 (GMT)
commitbb8985586b7a906e116db835c64773b7a7d51663 (patch)
treede93ae58e88cc563d95cc124a73f3930594c6100 /arch/x86/include/asm/cache.h
parent8ede0bdb63305d3353efd97e9af6210afb05734e (diff)
x86, um: ... and asm-x86 move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include/asm/cache.h')
-rw-r--r--arch/x86/include/asm/cache.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
new file mode 100644
index 0000000..ea3f1cc
--- /dev/null
+++ b/arch/x86/include/asm/cache.h
@@ -0,0 +1,20 @@
+#ifndef ASM_X86__CACHE_H
+#define ASM_X86__CACHE_H
+
+/* L1 cache line size */
+#define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
+#ifdef CONFIG_X86_VSMP
+/* vSMP Internode cacheline shift */
+#define INTERNODE_CACHE_SHIFT (12)
+#ifdef CONFIG_SMP
+#define __cacheline_aligned_in_smp \
+ __attribute__((__aligned__(1 << (INTERNODE_CACHE_SHIFT)))) \
+ __attribute__((__section__(".data.page_aligned")))
+#endif
+#endif
+
+#endif /* ASM_X86__CACHE_H */

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