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authorIngo Molnar <mingo@elte.hu>2008-10-03 19:28:46 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-03 19:28:46 +0200
commitf68ec0c24755e5cdb779be6240925f2175311d84 (patch)
treea7b7128e61a8456385d82bd1c7ca5f14eecbf2ca /arch/ia64/include/asm/cache.h
parent98920dc3d1113b883cbc73e3293446d3525c6042 (diff)
parent94aca1dac6f6d21f4b07e4864baf7768cabcc6e7 (diff)
Merge commit 'v2.6.27-rc8' into x86/setup
Diffstat (limited to 'arch/ia64/include/asm/cache.h')
-rw-r--r--arch/ia64/include/asm/cache.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h
new file mode 100644
index 00000000000..e7482bd628f
--- /dev/null
+++ b/arch/ia64/include/asm/cache.h
@@ -0,0 +1,29 @@
+#ifndef _ASM_IA64_CACHE_H
+#define _ASM_IA64_CACHE_H
+
+
+/*
+ * Copyright (C) 1998-2000 Hewlett-Packard Co
+ * David Mosberger-Tang <davidm@hpl.hp.com>
+ */
+
+/* Bytes per L1 (data) cache line. */
+#define L1_CACHE_SHIFT CONFIG_IA64_L1_CACHE_SHIFT
+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+
+#ifdef CONFIG_SMP
+# define SMP_CACHE_SHIFT L1_CACHE_SHIFT
+# define SMP_CACHE_BYTES L1_CACHE_BYTES
+#else
+ /*
+ * The "aligned" directive can only _increase_ alignment, so this is
+ * safe and provides an easy way to avoid wasting space on a
+ * uni-processor:
+ */
+# define SMP_CACHE_SHIFT 3
+# define SMP_CACHE_BYTES (1 << 3)
+#endif
+
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
+#endif /* _ASM_IA64_CACHE_H */