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author | Paul Mundt <lethal@linux-sh.org> | 2007-11-08 11:00:27 +0100 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2008-01-28 05:18:39 +0100 |
commit | d752542ade337f059d12c59c4bc9c312befa1f1e (patch) | |
tree | fa88e05b46a722a7d53b4d47a38b967079e84ce5 /include/asm-sh64/cache.h | |
parent | sh: Add addrspace.h segmentation stub for SH-5. (diff) | |
download | linux-d752542ade337f059d12c59c4bc9c312befa1f1e.tar.xz linux-d752542ade337f059d12c59c4bc9c312befa1f1e.zip |
sh: Add cache definitions for SH-5.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh64/cache.h')
-rw-r--r-- | include/asm-sh64/cache.h | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/include/asm-sh64/cache.h b/include/asm-sh64/cache.h deleted file mode 100644 index a4f36f0036e1..000000000000 --- a/include/asm-sh64/cache.h +++ /dev/null @@ -1,139 +0,0 @@ -#ifndef __ASM_SH64_CACHE_H -#define __ASM_SH64_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. - * - * include/asm-sh64/cache.h - * - * Copyright (C) 2000, 2001 Paolo Alberelli - * Copyright (C) 2003, 2004 Paul Mundt - * - */ -#include <asm/cacheflush.h> - -#define L1_CACHE_SHIFT 5 -/* bytes per L1 cache line */ -#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -#define L1_CACHE_ALIGN_MASK (~(L1_CACHE_BYTES - 1)) -#define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES - 1)) & L1_CACHE_ALIGN_MASK) -#define L1_CACHE_SIZE_BYTES (L1_CACHE_BYTES << 10) - -#ifdef MODULE -#define __cacheline_aligned __attribute__((__aligned__(L1_CACHE_BYTES))) -#else -#define __cacheline_aligned \ - __attribute__((__aligned__(L1_CACHE_BYTES), \ - __section__(".data.cacheline_aligned"))) -#endif - -/* - * Control Registers. - */ -#define ICCR_BASE 0x01600000 /* Instruction Cache Control Register */ -#define ICCR_REG0 0 /* Register 0 offset */ -#define ICCR_REG1 1 /* Register 1 offset */ -#define ICCR0 ICCR_BASE+ICCR_REG0 -#define ICCR1 ICCR_BASE+ICCR_REG1 - -#define ICCR0_OFF 0x0 /* Set ICACHE off */ -#define ICCR0_ON 0x1 /* Set ICACHE on */ -#define ICCR0_ICI 0x2 /* Invalidate all in IC */ - -#define ICCR1_NOLOCK 0x0 /* Set No Locking */ - -#define OCCR_BASE 0x01E00000 /* Operand Cache Control Register */ -#define OCCR_REG0 0 /* Register 0 offset */ -#define OCCR_REG1 1 /* Register 1 offset */ -#define OCCR0 OCCR_BASE+OCCR_REG0 -#define OCCR1 OCCR_BASE+OCCR_REG1 - -#define OCCR0_OFF 0x0 /* Set OCACHE off */ -#define OCCR0_ON 0x1 /* Set OCACHE on */ -#define OCCR0_OCI 0x2 /* Invalidate all in OC */ -#define OCCR0_WT 0x4 /* Set OCACHE in WT Mode */ -#define OCCR0_WB 0x0 /* Set OCACHE in WB Mode */ - -#define OCCR1_NOLOCK 0x0 /* Set No Locking */ - - -/* - * SH-5 - * A bit of description here, for neff=32. - * - * |<--- tag (19 bits) --->| - * +-----------------------------+-----------------+------+----------+------+ - * | | | ways |set index |offset| - * +-----------------------------+-----------------+------+----------+------+ - * ^ 2 bits 8 bits 5 bits - * +- Bit 31 - * - * Cacheline size is based on offset: 5 bits = 32 bytes per line - * A cache line is identified by a tag + set but OCACHETAG/ICACHETAG - * have a broader space for registers. These are outlined by - * CACHE_?C_*_STEP below. - * - */ - -/* Valid and Dirty bits */ -#define SH_CACHE_VALID (1LL<<0) -#define SH_CACHE_UPDATED (1LL<<57) - -/* Cache flags */ -#define SH_CACHE_MODE_WT (1LL<<0) -#define SH_CACHE_MODE_WB (1LL<<1) - -#ifndef __ASSEMBLY__ - -/* - * Cache information structure. - * - * Defined for both I and D cache, per-processor. - */ -struct cache_info { - unsigned int ways; - unsigned int sets; - unsigned int linesz; - - unsigned int way_shift; - unsigned int entry_shift; - unsigned int set_shift; - unsigned int way_step_shift; - unsigned int asid_shift; - - unsigned int way_ofs; - - unsigned int asid_mask; - unsigned int idx_mask; - unsigned int epn_mask; - - unsigned long flags; -}; - -#endif /* __ASSEMBLY__ */ - -/* Instruction cache */ -#define CACHE_IC_ADDRESS_ARRAY 0x01000000 - -/* Operand Cache */ -#define CACHE_OC_ADDRESS_ARRAY 0x01800000 - -/* These declarations relate to cache 'synonyms' in the operand cache. A - 'synonym' occurs where effective address bits overlap between those used for - indexing the cache sets and those passed to the MMU for translation. In the - case of SH5-101 & SH5-103, only bit 12 is affected for 4k pages. */ - -#define CACHE_OC_N_SYNBITS 1 /* Number of synonym bits */ -#define CACHE_OC_SYN_SHIFT 12 -/* Mask to select synonym bit(s) */ -#define CACHE_OC_SYN_MASK (((1UL<<CACHE_OC_N_SYNBITS)-1)<<CACHE_OC_SYN_SHIFT) - - -/* - * Instruction cache can't be invalidated based on physical addresses. - * No Instruction Cache defines required, then. - */ - -#endif /* __ASM_SH64_CACHE_H */ |