18c2ecf20Sopenharmony_ci/* 28c2ecf20Sopenharmony_ci * include/asm-xtensa/cache.h 38c2ecf20Sopenharmony_ci * 48c2ecf20Sopenharmony_ci * This file is subject to the terms and conditions of the GNU General Public 58c2ecf20Sopenharmony_ci * License. See the file "COPYING" in the main directory of this archive 68c2ecf20Sopenharmony_ci * for more details. 78c2ecf20Sopenharmony_ci * 88c2ecf20Sopenharmony_ci * (C) 2001 - 2005 Tensilica Inc. 98c2ecf20Sopenharmony_ci */ 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ci#ifndef _XTENSA_CACHE_H 128c2ecf20Sopenharmony_ci#define _XTENSA_CACHE_H 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ci#include <asm/core.h> 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_ci#define L1_CACHE_SHIFT XCHAL_DCACHE_LINEWIDTH 178c2ecf20Sopenharmony_ci#define L1_CACHE_BYTES XCHAL_DCACHE_LINESIZE 188c2ecf20Sopenharmony_ci#define SMP_CACHE_BYTES L1_CACHE_BYTES 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci#define DCACHE_WAY_SIZE (XCHAL_DCACHE_SIZE/XCHAL_DCACHE_WAYS) 218c2ecf20Sopenharmony_ci#define ICACHE_WAY_SIZE (XCHAL_ICACHE_SIZE/XCHAL_ICACHE_WAYS) 228c2ecf20Sopenharmony_ci#define DCACHE_WAY_SHIFT (XCHAL_DCACHE_SETWIDTH + XCHAL_DCACHE_LINEWIDTH) 238c2ecf20Sopenharmony_ci#define ICACHE_WAY_SHIFT (XCHAL_ICACHE_SETWIDTH + XCHAL_ICACHE_LINEWIDTH) 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci/* Maximum cache size per way. */ 268c2ecf20Sopenharmony_ci#if DCACHE_WAY_SIZE >= ICACHE_WAY_SIZE 278c2ecf20Sopenharmony_ci# define CACHE_WAY_SIZE DCACHE_WAY_SIZE 288c2ecf20Sopenharmony_ci#else 298c2ecf20Sopenharmony_ci# define CACHE_WAY_SIZE ICACHE_WAY_SIZE 308c2ecf20Sopenharmony_ci#endif 318c2ecf20Sopenharmony_ci 328c2ecf20Sopenharmony_ci#define ARCH_DMA_MINALIGN L1_CACHE_BYTES 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_ci/* 358c2ecf20Sopenharmony_ci * R/O after init is actually writable, it cannot go to .rodata 368c2ecf20Sopenharmony_ci * according to vmlinux linker script. 378c2ecf20Sopenharmony_ci */ 388c2ecf20Sopenharmony_ci#define __ro_after_init __read_mostly 398c2ecf20Sopenharmony_ci 408c2ecf20Sopenharmony_ci#endif /* _XTENSA_CACHE_H */ 41