[mirror_ubuntu-bionic-kernel.git] / arch / x86 / include / asm / cache.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_CACHE_H
#define _ASM_X86_CACHE_H

#include <linux/linkage.h>

/* L1 cache line size */
#define L1_CACHE_SHIFT	(CONFIG_X86_L1_CACHE_SHIFT)
#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)

#define __read_mostly __attribute__((__section__(".data..read_mostly")))

#define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT
#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT)

#ifdef CONFIG_X86_VSMP
#ifdef CONFIG_SMP
#define __cacheline_aligned_in_smp					\
	__attribute__((__aligned__(INTERNODE_CACHE_BYTES)))		\
	__page_aligned_data
#endif
#endif

#endif /* _ASM_X86_CACHE_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1965aae3 PA	2	#ifndef _ASM_X86_CACHE_H
1965aae3 PA	3	#define _ASM_X86_CACHE_H
9bfa23df	4
abe1ee3a TA	5	#include <linux/linkage.h>
abe1ee3a TA	6
9bfa23df TG	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
54cb27a7	11	#define __read_mostly __attribute__((__section__(".data..read_mostly")))
9bfa23df	12
350f8f56 JB	13	#define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT
	14	#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT)
	15
9bfa23df	16	#ifdef CONFIG_X86_VSMP
9bfa23df TG	17	#ifdef CONFIG_SMP
9bfa23df TG	18	#define __cacheline_aligned_in_smp \
350f8f56	19	__attribute__((__aligned__(INTERNODE_CACHE_BYTES))) \
abe1ee3a	20	__page_aligned_data
9bfa23df TG	21	#endif
	22	#endif
	23
1965aae3	24	#endif /* _ASM_X86_CACHE_H */