[thirdparty/linux.git] / arch / metag / include / asm / cache.h

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

/* L1 cache line size (64 bytes) */
#define L1_CACHE_SHIFT		6
#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)

/* Meta requires large data items to be 8 byte aligned. */
#define ARCH_SLAB_MINALIGN	8

/*
 * With an L2 cache, we may invalidate dirty lines, so we need to ensure DMA
 * buffers have cache line alignment.
 */
#ifdef CONFIG_METAG_L2C
#define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
#else
#define ARCH_DMA_MINALIGN	8
#endif

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

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
99ef7c2a JH	2	#ifndef __ASM_METAG_CACHE_H
	3	#define __ASM_METAG_CACHE_H
	4
	5	/* L1 cache line size (64 bytes) */
	6	#define L1_CACHE_SHIFT 6
	7	#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
	8
	9	/* Meta requires large data items to be 8 byte aligned. */
	10	#define ARCH_SLAB_MINALIGN 8
	11
	12	/*
	13	* With an L2 cache, we may invalidate dirty lines, so we need to ensure DMA
	14	* buffers have cache line alignment.
	15	*/
	16	#ifdef CONFIG_METAG_L2C
	17	#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
	18	#else
	19	#define ARCH_DMA_MINALIGN 8
	20	#endif
	21
	22	#define __read_mostly __attribute__((__section__(".data..read_mostly")))
	23
	24	#endif