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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/ia64/include/asm/cache.h
Initial import
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
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+++ b/arch/ia64/include/asm/cache.h
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+#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 */