#ifndef _ASM_PGTABLE_BITS_H
#define _ASM_PGTABLE_BITS_H
-#include <linux/config.h>
/*
* Note that we shift the lower 32bits of each EntryLo[01] entry
* 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)
+#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32)
#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_FILE (1<<10) /* set:pagecache unset:swap */
#define _PAGE_R4KBUG (1<<0) /* workaround for r4k bug */
#define _PAGE_GLOBAL (1<<0)
#define _PAGE_SILENT_READ (1<<1) /* synonym */
#define _PAGE_DIRTY (1<<2) /* The MIPS dirty bit */
#define _PAGE_SILENT_WRITE (1<<2)
+#define _CACHE_SHIFT 3
#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_SILENT_WRITE (1<<10)
#define _CACHE_UNCACHED (1<<11)
#define _CACHE_MASK (1<<11)
-#define _CACHE_CACHABLE_NONCOHERENT 0
#else
+
#define _PAGE_R4KBUG (1<<5) /* workaround for r4k bug */
#define _PAGE_GLOBAL (1<<6)
#define _PAGE_VALID (1<<7)
#define _PAGE_SILENT_READ (1<<7) /* synonym */
#define _PAGE_DIRTY (1<<8) /* The MIPS dirty bit */
#define _PAGE_SILENT_WRITE (1<<8)
+#define _CACHE_SHIFT 9
#define _CACHE_MASK (7<<9)
-#ifdef CONFIG_CPU_SB1
+#endif
+#endif /* defined(CONFIG_64BIT_PHYS_ADDR && defined(CONFIG_CPU_MIPS32) */
+
+
+/*
+ * Cache attributes
+ */
+#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+
+#define _CACHE_CACHABLE_NONCOHERENT 0
+
+#elif defined(CONFIG_CPU_SB1)
/* No penalty for being coherent on the SB1, so just
use it for "noncoherent" spaces, too. Shouldn't hurt. */
-#define _CACHE_UNCACHED (2<<9)
-#define _CACHE_CACHABLE_COW (5<<9)
-#define _CACHE_CACHABLE_NONCOHERENT (5<<9)
-#define _CACHE_UNCACHED_ACCELERATED (7<<9)
+#define _CACHE_UNCACHED (2<<_CACHE_SHIFT)
+#define _CACHE_CACHABLE_COW (5<<_CACHE_SHIFT)
+#define _CACHE_CACHABLE_NONCOHERENT (5<<_CACHE_SHIFT)
+#define _CACHE_UNCACHED_ACCELERATED (7<<_CACHE_SHIFT)
#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_WT (0<<_CACHE_SHIFT)
+#define _CACHE_WTWA (1<<_CACHE_SHIFT)
+#define _CACHE_UC_B (2<<_CACHE_SHIFT)
+#define _CACHE_WB (3<<_CACHE_SHIFT)
+#define _CACHE_CWBEA (4<<_CACHE_SHIFT)
+#define _CACHE_CWB (5<<_CACHE_SHIFT)
+#define _CACHE_UCNB (6<<_CACHE_SHIFT)
+#define _CACHE_FPC (7<<_CACHE_SHIFT)
-#define _CACHE_UNCACHED _CACHE_UC_B
-#define _CACHE_CACHABLE_NONCOHERENT _CACHE_WB
+#define _CACHE_UNCACHED _CACHE_UC_B
+#define _CACHE_CACHABLE_NONCOHERENT _CACHE_WB
#else
-#define _CACHE_CACHABLE_NO_WA (0<<9) /* R4600 only */
-#define _CACHE_CACHABLE_WA (1<<9) /* R4600 only */
-#define _CACHE_UNCACHED (2<<9) /* R4[0246]00 */
-#define _CACHE_CACHABLE_NONCOHERENT (3<<9) /* R4[0246]00 */
-#define _CACHE_CACHABLE_CE (4<<9) /* R4[04]00MC only */
-#define _CACHE_CACHABLE_COW (5<<9) /* R4[04]00MC only */
-#define _CACHE_CACHABLE_CUW (6<<9) /* R4[04]00MC only */
-#define _CACHE_UNCACHED_ACCELERATED (7<<9) /* R10000 only */
+#define _CACHE_CACHABLE_NO_WA (0<<_CACHE_SHIFT) /* R4600 only */
+#define _CACHE_CACHABLE_WA (1<<_CACHE_SHIFT) /* R4600 only */
+#define _CACHE_UNCACHED (2<<_CACHE_SHIFT) /* R4[0246]00 */
+#define _CACHE_CACHABLE_NONCOHERENT (3<<_CACHE_SHIFT) /* R4[0246]00 */
+#define _CACHE_CACHABLE_CE (4<<_CACHE_SHIFT) /* R4[04]00MC only */
+#define _CACHE_CACHABLE_COW (5<<_CACHE_SHIFT) /* R4[04]00MC only */
+#define _CACHE_CACHABLE_COHERENT (5<<_CACHE_SHIFT) /* MIPS32R2 CMP */
+#define _CACHE_CACHABLE_CUW (6<<_CACHE_SHIFT) /* R4[04]00MC only */
+#define _CACHE_UNCACHED_ACCELERATED (7<<_CACHE_SHIFT) /* R10000 only */
#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)
#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_MODIFIED | _CACHE_MASK)
-#ifdef CONFIG_MIPS_UNCACHED
-#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
+#define CONF_CM_DEFAULT (PAGE_CACHABLE_DEFAULT>>_CACHE_SHIFT)
#endif /* _ASM_PGTABLE_BITS_H */
git.openpandora.org / pandora-kernel.git / blobdiff