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-rw-r--r--arch/powerpc/include/asm/mmu-44x.h51
1 files changed, 50 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/mmu-44x.h b/arch/powerpc/include/asm/mmu-44x.h
index 0372669383a8..bf52d704fc47 100644
--- a/arch/powerpc/include/asm/mmu-44x.h
+++ b/arch/powerpc/include/asm/mmu-44x.h
@@ -40,7 +40,7 @@
40#define PPC44x_TLB_I 0x00000400 /* Caching is inhibited */ 40#define PPC44x_TLB_I 0x00000400 /* Caching is inhibited */
41#define PPC44x_TLB_M 0x00000200 /* Memory is coherent */ 41#define PPC44x_TLB_M 0x00000200 /* Memory is coherent */
42#define PPC44x_TLB_G 0x00000100 /* Memory is guarded */ 42#define PPC44x_TLB_G 0x00000100 /* Memory is guarded */
43#define PPC44x_TLB_E 0x00000080 /* Memory is guarded */ 43#define PPC44x_TLB_E 0x00000080 /* Memory is little endian */
44 44
45#define PPC44x_TLB_PERM_MASK 0x0000003f 45#define PPC44x_TLB_PERM_MASK 0x0000003f
46#define PPC44x_TLB_UX 0x00000020 /* User execution */ 46#define PPC44x_TLB_UX 0x00000020 /* User execution */
@@ -53,6 +53,52 @@
53/* Number of TLB entries */ 53/* Number of TLB entries */
54#define PPC44x_TLB_SIZE 64 54#define PPC44x_TLB_SIZE 64
55 55
56/* 47x bits */
57#define PPC47x_MMUCR_TID 0x0000ffff
58#define PPC47x_MMUCR_STS 0x00010000
59
60/* Page identification fields */
61#define PPC47x_TLB0_EPN_MASK 0xfffff000 /* Effective Page Number */
62#define PPC47x_TLB0_VALID 0x00000800 /* Valid flag */
63#define PPC47x_TLB0_TS 0x00000400 /* Translation address space */
64#define PPC47x_TLB0_4K 0x00000000
65#define PPC47x_TLB0_16K 0x00000010
66#define PPC47x_TLB0_64K 0x00000030
67#define PPC47x_TLB0_1M 0x00000070
68#define PPC47x_TLB0_16M 0x000000f0
69#define PPC47x_TLB0_256M 0x000001f0
70#define PPC47x_TLB0_1G 0x000003f0
71#define PPC47x_TLB0_BOLTED_R 0x00000008 /* tlbre only */
72
73/* Translation fields */
74#define PPC47x_TLB1_RPN_MASK 0xfffff000 /* Real Page Number */
75#define PPC47x_TLB1_ERPN_MASK 0x000003ff
76
77/* Storage attribute and access control fields */
78#define PPC47x_TLB2_ATTR_MASK 0x0003ff80
79#define PPC47x_TLB2_IL1I 0x00020000 /* Memory is guarded */
80#define PPC47x_TLB2_IL1D 0x00010000 /* Memory is guarded */
81#define PPC47x_TLB2_U0 0x00008000 /* User 0 */
82#define PPC47x_TLB2_U1 0x00004000 /* User 1 */
83#define PPC47x_TLB2_U2 0x00002000 /* User 2 */
84#define PPC47x_TLB2_U3 0x00001000 /* User 3 */
85#define PPC47x_TLB2_W 0x00000800 /* Caching is write-through */
86#define PPC47x_TLB2_I 0x00000400 /* Caching is inhibited */
87#define PPC47x_TLB2_M 0x00000200 /* Memory is coherent */
88#define PPC47x_TLB2_G 0x00000100 /* Memory is guarded */
89#define PPC47x_TLB2_E 0x00000080 /* Memory is little endian */
90#define PPC47x_TLB2_PERM_MASK 0x0000003f
91#define PPC47x_TLB2_UX 0x00000020 /* User execution */
92#define PPC47x_TLB2_UW 0x00000010 /* User write */
93#define PPC47x_TLB2_UR 0x00000008 /* User read */
94#define PPC47x_TLB2_SX 0x00000004 /* Super execution */
95#define PPC47x_TLB2_SW 0x00000002 /* Super write */
96#define PPC47x_TLB2_SR 0x00000001 /* Super read */
97#define PPC47x_TLB2_U_RWX (PPC47x_TLB2_UX|PPC47x_TLB2_UW|PPC47x_TLB2_UR)
98#define PPC47x_TLB2_S_RWX (PPC47x_TLB2_SX|PPC47x_TLB2_SW|PPC47x_TLB2_SR)
99#define PPC47x_TLB2_S_RW (PPC47x_TLB2_SW | PPC47x_TLB2_SR)
100#define PPC47x_TLB2_IMG (PPC47x_TLB2_I | PPC47x_TLB2_M | PPC47x_TLB2_G)
101
56#ifndef __ASSEMBLY__ 102#ifndef __ASSEMBLY__
57 103
58extern unsigned int tlb_44x_hwater; 104extern unsigned int tlb_44x_hwater;
@@ -79,12 +125,15 @@ typedef struct {
79 125
80#if (PAGE_SHIFT == 12) 126#if (PAGE_SHIFT == 12)
81#define PPC44x_TLBE_SIZE PPC44x_TLB_4K 127#define PPC44x_TLBE_SIZE PPC44x_TLB_4K
128#define PPC47x_TLBE_SIZE PPC47x_TLB0_4K
82#define mmu_virtual_psize MMU_PAGE_4K 129#define mmu_virtual_psize MMU_PAGE_4K
83#elif (PAGE_SHIFT == 14) 130#elif (PAGE_SHIFT == 14)
84#define PPC44x_TLBE_SIZE PPC44x_TLB_16K 131#define PPC44x_TLBE_SIZE PPC44x_TLB_16K
132#define PPC47x_TLBE_SIZE PPC47x_TLB0_16K
85#define mmu_virtual_psize MMU_PAGE_16K 133#define mmu_virtual_psize MMU_PAGE_16K
86#elif (PAGE_SHIFT == 16) 134#elif (PAGE_SHIFT == 16)
87#define PPC44x_TLBE_SIZE PPC44x_TLB_64K 135#define PPC44x_TLBE_SIZE PPC44x_TLB_64K
136#define PPC47x_TLBE_SIZE PPC47x_TLB0_64K
88#define mmu_virtual_psize MMU_PAGE_64K 137#define mmu_virtual_psize MMU_PAGE_64K
89#elif (PAGE_SHIFT == 18) 138#elif (PAGE_SHIFT == 18)
90#define PPC44x_TLBE_SIZE PPC44x_TLB_256K 139#define PPC44x_TLBE_SIZE PPC44x_TLB_256K