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#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
*
*/
#define L1_CACHE_SHIFT 5
/* 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)
/*
* 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.
*
*/
/* 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 */
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