X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-mips%2Fpgtable-bits.h;h=7494ba91112a77dca294aa9a01a91498c8041125;hb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;hp=22d19833a4b43655d6859e7ef0336a05717207df;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git diff --git a/include/asm-mips/pgtable-bits.h b/include/asm-mips/pgtable-bits.h index 22d19833a..7494ba911 100644 --- a/include/asm-mips/pgtable-bits.h +++ b/include/asm-mips/pgtable-bits.h @@ -10,7 +10,6 @@ #ifndef _ASM_PGTABLE_BITS_H #define _ASM_PGTABLE_BITS_H -#include /* * Note that we shift the lower 32bits of each EntryLo[01] entry @@ -33,6 +32,32 @@ * unpredictable things. The code (when it is written) to deal with * this problem will be in the update_mmu_cache() code for the r4k. */ +#if defined(CONFIG_CPU_MIPS32_R1) && defined(CONFIG_64BIT_PHYS_ADDR) + +#define _PAGE_PRESENT (1<<6) /* implemented in software */ +#define _PAGE_READ (1<<7) /* implemented in software */ +#define _PAGE_WRITE (1<<8) /* implemented in software */ +#define _PAGE_ACCESSED (1<<9) /* implemented in software */ +#define _PAGE_MODIFIED (1<<10) /* implemented in software */ +#define _PAGE_FILE (1<<10) /* set:pagecache unset:swap */ + +#define _PAGE_R4KBUG (1<<0) /* workaround for r4k bug */ +#define _PAGE_GLOBAL (1<<0) +#define _PAGE_VALID (1<<1) +#define _PAGE_SILENT_READ (1<<1) /* synonym */ +#define _PAGE_DIRTY (1<<2) /* The MIPS dirty bit */ +#define _PAGE_SILENT_WRITE (1<<2) +#define _CACHE_MASK (7<<3) + +/* MIPS32 defines only values 2 and 3. The rest are implementation + * dependent. + */ +#define _CACHE_UNCACHED (2<<3) +#define _CACHE_CACHABLE_NONCOHERENT (3<<3) +#define _CACHE_CACHABLE_COW (3<<3) /* Au1x */ + +#else + #define _PAGE_PRESENT (1<<0) /* implemented in software */ #define _PAGE_READ (1<<1) /* implemented in software */ #define _PAGE_WRITE (1<<2) /* implemented in software */ @@ -60,7 +85,7 @@ #define _PAGE_SILENT_WRITE (1<<8) #define _CACHE_MASK (7<<9) -#if defined(CONFIG_CPU_SB1) +#ifdef CONFIG_CPU_SB1 /* No penalty for being coherent on the SB1, so just use it for "noncoherent" spaces, too. Shouldn't hurt. */ @@ -70,6 +95,20 @@ #define _CACHE_CACHABLE_NONCOHERENT (5<<9) #define _CACHE_UNCACHED_ACCELERATED (7<<9) +#elif defined(CONFIG_CPU_RM9000) + +#define _CACHE_WT (0 << 9) +#define _CACHE_WTWA (1 << 9) +#define _CACHE_UC_B (2 << 9) +#define _CACHE_WB (3 << 9) +#define _CACHE_CWBEA (4 << 9) +#define _CACHE_CWB (5 << 9) +#define _CACHE_UCNB (6 << 9) +#define _CACHE_FPC (7 << 9) + +#define _CACHE_UNCACHED _CACHE_UC_B +#define _CACHE_CACHABLE_NONCOHERENT _CACHE_WB + #else #define _CACHE_CACHABLE_NO_WA (0<<9) /* R4600 only */ @@ -83,6 +122,7 @@ #endif #endif +#endif /* defined(CONFIG_CPU_MIPS32_R1) && defined(CONFIG_64BIT_PHYS_ADDR) */ #define __READABLE (_PAGE_READ | _PAGE_SILENT_READ | _PAGE_ACCESSED) #define __WRITEABLE (_PAGE_WRITE | _PAGE_SILENT_WRITE | _PAGE_MODIFIED) @@ -93,10 +133,16 @@ #define PAGE_CACHABLE_DEFAULT _CACHE_UNCACHED #elif defined(CONFIG_DMA_NONCOHERENT) #define PAGE_CACHABLE_DEFAULT _CACHE_CACHABLE_NONCOHERENT +#elif defined(CONFIG_CPU_RM9000) +#define PAGE_CACHABLE_DEFAULT _CACHE_CWB #else #define PAGE_CACHABLE_DEFAULT _CACHE_CACHABLE_COW #endif +#if defined(CONFIG_CPU_MIPS32_R1) && defined(CONFIG_64BIT_PHYS_ADDR) +#define CONF_CM_DEFAULT (PAGE_CACHABLE_DEFAULT >> 3) +#else #define CONF_CM_DEFAULT (PAGE_CACHABLE_DEFAULT >> 9) +#endif #endif /* _ASM_PGTABLE_BITS_H */