162306a36Sopenharmony_ci/* 262306a36Sopenharmony_ci * include/asm-xtensa/cache.h 362306a36Sopenharmony_ci * 462306a36Sopenharmony_ci * This file is subject to the terms and conditions of the GNU General Public 562306a36Sopenharmony_ci * License. See the file "COPYING" in the main directory of this archive 662306a36Sopenharmony_ci * for more details. 762306a36Sopenharmony_ci * 862306a36Sopenharmony_ci * (C) 2001 - 2005 Tensilica Inc. 962306a36Sopenharmony_ci */ 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci#ifndef _XTENSA_CACHE_H 1262306a36Sopenharmony_ci#define _XTENSA_CACHE_H 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci#include <asm/core.h> 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci#define L1_CACHE_SHIFT XCHAL_DCACHE_LINEWIDTH 1762306a36Sopenharmony_ci#define L1_CACHE_BYTES XCHAL_DCACHE_LINESIZE 1862306a36Sopenharmony_ci#define SMP_CACHE_BYTES L1_CACHE_BYTES 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ci#define DCACHE_WAY_SIZE (XCHAL_DCACHE_SIZE/XCHAL_DCACHE_WAYS) 2162306a36Sopenharmony_ci#define ICACHE_WAY_SIZE (XCHAL_ICACHE_SIZE/XCHAL_ICACHE_WAYS) 2262306a36Sopenharmony_ci#define DCACHE_WAY_SHIFT (XCHAL_DCACHE_SETWIDTH + XCHAL_DCACHE_LINEWIDTH) 2362306a36Sopenharmony_ci#define ICACHE_WAY_SHIFT (XCHAL_ICACHE_SETWIDTH + XCHAL_ICACHE_LINEWIDTH) 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci/* Maximum cache size per way. */ 2662306a36Sopenharmony_ci#if DCACHE_WAY_SIZE >= ICACHE_WAY_SIZE 2762306a36Sopenharmony_ci# define CACHE_WAY_SIZE DCACHE_WAY_SIZE 2862306a36Sopenharmony_ci#else 2962306a36Sopenharmony_ci# define CACHE_WAY_SIZE ICACHE_WAY_SIZE 3062306a36Sopenharmony_ci#endif 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ci#define ARCH_DMA_MINALIGN L1_CACHE_BYTES 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ci/* 3562306a36Sopenharmony_ci * R/O after init is actually writable, it cannot go to .rodata 3662306a36Sopenharmony_ci * according to vmlinux linker script. 3762306a36Sopenharmony_ci */ 3862306a36Sopenharmony_ci#define __ro_after_init __read_mostly 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_ci#endif /* _XTENSA_CACHE_H */ 41