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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /arch/ia64/include/asm/cache.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/ia64/include/asm/cache.h')
-rw-r--r--arch/ia64/include/asm/cache.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h
new file mode 100644
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+++ b/arch/ia64/include/asm/cache.h
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+/* SPDX-License-Identifier: GPL-2.0 */
+#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 __section(".data..read_mostly")
+
+#endif /* _ASM_IA64_CACHE_H */