ARCv2: MMUv4: TLB programming Model changes

[linux-2.6-microblaze.git] / arch / arc / include / asm / mmu.h

diff --git a/arch/arc/include/asm/mmu.h b/arch/arc/include/asm/mmu.h
index 8c84ae9..0f9c3eb 100644 (file)
--- a/arch/arc/include/asm/mmu.h
+++ b/arch/arc/include/asm/mmu.h
@@ -15,24 +15,41 @@
 #define CONFIG_ARC_MMU_VER 2
 #elif defined(CONFIG_ARC_MMU_V3)
 #define CONFIG_ARC_MMU_VER 3
+#elif defined(CONFIG_ARC_MMU_V4)
+#define CONFIG_ARC_MMU_VER 4
 #endif
 
 /* MMU Management regs */
 #define ARC_REG_MMU_BCR                0x06f
+#if (CONFIG_ARC_MMU_VER < 4)
 #define ARC_REG_TLBPD0         0x405
 #define ARC_REG_TLBPD1         0x406
 #define ARC_REG_TLBINDEX       0x407
 #define ARC_REG_TLBCOMMAND     0x408
 #define ARC_REG_PID            0x409
 #define ARC_REG_SCRATCH_DATA0  0x418
+#else
+#define ARC_REG_TLBPD0         0x460
+#define ARC_REG_TLBPD1         0x461
+#define ARC_REG_TLBINDEX       0x464
+#define ARC_REG_TLBCOMMAND     0x465
+#define ARC_REG_PID            0x468
+#define ARC_REG_SCRATCH_DATA0  0x46c
+#endif
 
 /* Bits in MMU PID register */
-#define MMU_ENABLE             (1 << 31)       /* Enable MMU for process */
+#define __TLB_ENABLE           (1 << 31)
+#define __PROG_ENABLE          (1 << 30)
+#define MMU_ENABLE             (__TLB_ENABLE | __PROG_ENABLE)
 
 /* Error code if probe fails */
 #define TLB_LKUP_ERR           0x80000000
 
+#if (CONFIG_ARC_MMU_VER < 4)
 #define TLB_DUP_ERR    (TLB_LKUP_ERR | 0x00000001)
+#else
+#define TLB_DUP_ERR    (TLB_LKUP_ERR | 0x40000000)
+#endif
 
 /* TLB Commands */
 #define TLBWrite    0x1
@@ -45,6 +62,11 @@
 #define TLBIVUTLB   0x6                /* explicitly inv uTLBs */
 #endif
 
+#if (CONFIG_ARC_MMU_VER >= 4)
+#define TLBInsertEntry 0x7
+#define TLBDeleteEntry 0x8
+#endif
+
 #ifndef __ASSEMBLY__
 
 typedef struct {