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/* * include/asm-xtensa/cache.h * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * (C) 2001 - 2005 Tensilica Inc. */ #ifndef _XTENSA_CACHE_H #define _XTENSA_CACHE_H #include <asm/core.h> #define L1_CACHE_SHIFT XCHAL_DCACHE_LINEWIDTH #define L1_CACHE_BYTES XCHAL_DCACHE_LINESIZE #define SMP_CACHE_BYTES L1_CACHE_BYTES #define DCACHE_WAY_SIZE (XCHAL_DCACHE_SIZE/XCHAL_DCACHE_WAYS) #define ICACHE_WAY_SIZE (XCHAL_ICACHE_SIZE/XCHAL_ICACHE_WAYS) #define DCACHE_WAY_SHIFT (XCHAL_DCACHE_SETWIDTH + XCHAL_DCACHE_LINEWIDTH) #define ICACHE_WAY_SHIFT (XCHAL_ICACHE_SETWIDTH + XCHAL_ICACHE_LINEWIDTH) /* Maximum cache size per way. */ #if DCACHE_WAY_SIZE >= ICACHE_WAY_SIZE # define CACHE_WAY_SIZE DCACHE_WAY_SIZE #else # define CACHE_WAY_SIZE ICACHE_WAY_SIZE #endif #define ARCH_DMA_MINALIGN L1_CACHE_BYTES /* * R/O after init is actually writable, it cannot go to .rodata * according to vmlinux linker script. */ #define __ro_after_init __read_mostly #endif /* _XTENSA_CACHE_H */