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/* MN10300 cache management registers * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public Licence * as published by the Free Software Foundation; either version * 2 of the Licence, or (at your option) any later version. */ #ifndef _ASM_CACHE_H #define _ASM_CACHE_H #include <asm/cpu-regs.h> #include <proc/cache.h> #ifndef __ASSEMBLY__ #define L1_CACHE_DISPARITY (L1_CACHE_NENTRIES * L1_CACHE_BYTES) #else #define L1_CACHE_DISPARITY L1_CACHE_NENTRIES * L1_CACHE_BYTES #endif #define ARCH_DMA_MINALIGN L1_CACHE_BYTES /* data cache purge registers * - read from the register to unconditionally purge that cache line * - write address & 0xffffff00 to conditionally purge that cache line * - clear LSB to request invalidation as well */ #define DCACHE_PURGE(WAY, ENTRY) \ __SYSREG(0xc8400000 + (WAY) * L1_CACHE_WAYDISP + \ (ENTRY) * L1_CACHE_BYTES, u32) #define DCACHE_PURGE_WAY0(ENTRY) \ __SYSREG(0xc8400000 + 0 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32) #define DCACHE_PURGE_WAY1(ENTRY) \ __SYSREG(0xc8400000 + 1 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32) #define DCACHE_PURGE_WAY2(ENTRY) \ __SYSREG(0xc8400000 + 2 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32) #define DCACHE_PURGE_WAY3(ENTRY) \ __SYSREG(0xc8400000 + 3 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32) /* instruction cache access registers */ #define ICACHE_DATA(WAY, ENTRY, OFF) \ __SYSREG(0xc8000000 + (WAY) * L1_CACHE_WAYDISP + \ (ENTRY) * L1_CACHE_BYTES + (OFF) * 4, u32) #define ICACHE_TAG(WAY, ENTRY) \ __SYSREG(0xc8100000 + (WAY) * L1_CACHE_WAYDISP + \ (ENTRY) * L1_CACHE_BYTES, u32) /* data cache access registers */ #define DCACHE_DATA(WAY, ENTRY, OFF) \ __SYSREG(0xc8200000 + (WAY) * L1_CACHE_WAYDISP + \ (ENTRY) * L1_CACHE_BYTES + (OFF) * 4, u32) #define DCACHE_TAG(WAY, ENTRY) \ __SYSREG(0xc8300000 + (WAY) * L1_CACHE_WAYDISP + \ (ENTRY) * L1_CACHE_BYTES, u32) #endif /* _ASM_CACHE_H */