include/asm/cache.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _ASM_X86_CACHE_H
0003 #define _ASM_X86_CACHE_H
0004
0005 #include <linux/linkage.h>
0006
0007 /* L1 cache line size */
0008 #define L1_CACHE_SHIFT  (CONFIG_X86_L1_CACHE_SHIFT)
0009 #define L1_CACHE_BYTES  (1 << L1_CACHE_SHIFT)
0010
0011 #define __read_mostly __section(".data..read_mostly")
0012
0013 #define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT
0014 #define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT)
0015
0016 #ifdef CONFIG_X86_VSMP
0017 #ifdef CONFIG_SMP
0018 #define __cacheline_aligned_in_smp                  \
0019     __attribute__((__aligned__(INTERNODE_CACHE_BYTES)))     \
0020     __page_aligned_data
0021 #endif
0022 #endif
0023
0024 #endif /* _ASM_X86_CACHE_H */