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 __attribute__((__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