1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_X86_CACHE_H
3 #define _ASM_X86_CACHE_H
4
5 #include <linux/linkage.h>
6
7 /* L1 cache line size */
8 #define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
9 #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
10
11 #define __read_mostly __section(".data..read_mostly")
12
13 #define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT
14 #define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT)
15
16 #ifdef CONFIG_X86_VSMP
17 #ifdef CONFIG_SMP
18 #define __cacheline_aligned_in_smp \
19 __attribute__((__aligned__(INTERNODE_CACHE_BYTES))) \
20 __page_aligned_data
21 #endif
22 #endif
23
24 #endif /* _ASM_X86_CACHE_H */
25
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