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>

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 000000000000..ea3f1cc06a97
--- /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 */