/* *  linux/arch/m32r/mm/cache.c * *  Copyright (C) 2002  Hirokazu Takata */#include <linux/config.h>#include <asm/pgtable.h>#undef MCCR#if defined(CONFIG_CHIP_XNUX2) || defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_VDEC2) || defined(CONFIG_CHIP_OPSP)/* Cache Control Register */#define MCCR		((volatile unsigned long*)0xfffffffc)#define MCCR_CC		(1UL << 7)	/* Cache mode modify bit */#define MCCR_IIV	(1UL << 6)	/* I-cache invalidate */#define MCCR_DIV	(1UL << 5)	/* D-cache invalidate */#define MCCR_DCB	(1UL << 4)	/* D-cache copy back */#define MCCR_ICM	(1UL << 1)	/* I-cache mode [0:off,1:on] */#define MCCR_DCM	(1UL << 0)	/* D-cache mode [0:off,1:on] */#define MCCR_ICACHE_INV		(MCCR_CC|MCCR_IIV)#define MCCR_DCACHE_CB		(MCCR_CC|MCCR_DCB)#define MCCR_DCACHE_CBINV	(MCCR_CC|MCCR_DIV|MCCR_DCB)#define CHECK_MCCR(mccr)	(mccr = *MCCR)#elif defined(CONFIG_CHIP_M32102)#define MCCR		((volatile unsigned char*)0xfffffffe)#define MCCR_IIV	(1UL << 0)	/* I-cache invalidate */#define MCCR_ICACHE_INV		MCCR_IIV#endif /* CONFIG_CHIP_XNUX2 || CONFIG_CHIP_M32700 */#ifndef MCCR#error Unknown cache type.#endif/* Copy back and invalidate D-cache and invalidate I-cache all */void _flush_cache_all(void){#if defined(CONFIG_CHIP_M32102)	*MCCR = MCCR_ICACHE_INV;#else	unsigned long mccr;	/* Copyback and invalidate D-cache */	/* Invalidate I-cache */	*MCCR = MCCR_ICACHE_INV | MCCR_DCACHE_CBINV;	while ((mccr = *MCCR) & MCCR_IIV); /* loop while invalidating... */#endif}/* Copy back D-cache and invalidate I-cache all */void _flush_cache_copyback_all(void){#if defined(CONFIG_CHIP_M32102)	*MCCR = MCCR_ICACHE_INV;#else	unsigned long mccr;	/* Copyback D-cache */	/* Invalidate I-cache */	*MCCR = MCCR_ICACHE_INV | MCCR_DCACHE_CB;	while ((mccr = *MCCR) & MCCR_IIV); /* loop while invalidating... */#endif}