arch/powerpc/include/asm/mmu-book3e.h

   1 #ifndef _ASM_POWERPC_MMU_BOOK3E_H_
   2 #define _ASM_POWERPC_MMU_BOOK3E_H_
   3 /*
   4  * Freescale Book-E/Book-3e (ISA 2.06+) MMU support
   5  */
   6
   7 /* Book-3e defined page sizes */
   8 #define BOOK3E_PAGESZ_1K        0
   9 #define BOOK3E_PAGESZ_2K        1
  10 #define BOOK3E_PAGESZ_4K        2
  11 #define BOOK3E_PAGESZ_8K        3
  12 #define BOOK3E_PAGESZ_16K       4
  13 #define BOOK3E_PAGESZ_32K       5
  14 #define BOOK3E_PAGESZ_64K       6
  15 #define BOOK3E_PAGESZ_128K      7
  16 #define BOOK3E_PAGESZ_256K      8
  17 #define BOOK3E_PAGESZ_512K      9
  18 #define BOOK3E_PAGESZ_1M        10
  19 #define BOOK3E_PAGESZ_2M        11
  20 #define BOOK3E_PAGESZ_4M        12
  21 #define BOOK3E_PAGESZ_8M        13
  22 #define BOOK3E_PAGESZ_16M       14
  23 #define BOOK3E_PAGESZ_32M       15
  24 #define BOOK3E_PAGESZ_64M       16
  25 #define BOOK3E_PAGESZ_128M      17
  26 #define BOOK3E_PAGESZ_256M      18
  27 #define BOOK3E_PAGESZ_512M      19
  28 #define BOOK3E_PAGESZ_1GB       20
  29 #define BOOK3E_PAGESZ_2GB       21
  30 #define BOOK3E_PAGESZ_4GB       22
  31 #define BOOK3E_PAGESZ_8GB       23
  32 #define BOOK3E_PAGESZ_16GB      24
  33 #define BOOK3E_PAGESZ_32GB      25
  34 #define BOOK3E_PAGESZ_64GB      26
  35 #define BOOK3E_PAGESZ_128GB     27
  36 #define BOOK3E_PAGESZ_256GB     28
  37 #define BOOK3E_PAGESZ_512GB     29
  38 #define BOOK3E_PAGESZ_1TB       30
  39 #define BOOK3E_PAGESZ_2TB       31
  40
  41 /* MAS registers bit definitions */
  42
  43 #define MAS0_TLBSEL(x)          ((x << 28) & 0x30000000)
  44 #define MAS0_ESEL(x)            ((x << 16) & 0x0FFF0000)
  45 #define MAS0_NV(x)              ((x) & 0x00000FFF)
  46 #define MAS0_HES                0x00004000
  47 #define MAS0_WQ_ALLWAYS         0x00000000
  48 #define MAS0_WQ_COND            0x00001000
  49 #define MAS0_WQ_CLR_RSRV        0x00002000
  50
  51 #define MAS1_VALID              0x80000000
  52 #define MAS1_IPROT              0x40000000
  53 #define MAS1_TID(x)             ((x << 16) & 0x3FFF0000)
  54 #define MAS1_IND                0x00002000
  55 #define MAS1_TS                 0x00001000
  56 #define MAS1_TSIZE_MASK         0x00000f80
  57 #define MAS1_TSIZE_SHIFT        7
  58 #define MAS1_TSIZE(x)           ((x << MAS1_TSIZE_SHIFT) & MAS1_TSIZE_MASK)
  59
  60 #define MAS2_EPN                0xFFFFF000
  61 #define MAS2_X0                 0x00000040
  62 #define MAS2_X1                 0x00000020
  63 #define MAS2_W                  0x00000010
  64 #define MAS2_I                  0x00000008
  65 #define MAS2_M                  0x00000004
  66 #define MAS2_G                  0x00000002
  67 #define MAS2_E                  0x00000001
  68 #define MAS2_EPN_MASK(size)             (~0 << (size + 10))
  69 #define MAS2_VAL(addr, size, flags)     ((addr) & MAS2_EPN_MASK(size) | (flags))
  70
  71 #define MAS3_RPN                0xFFFFF000
  72 #define MAS3_U0                 0x00000200
  73 #define MAS3_U1                 0x00000100
  74 #define MAS3_U2                 0x00000080
  75 #define MAS3_U3                 0x00000040
  76 #define MAS3_UX                 0x00000020
  77 #define MAS3_SX                 0x00000010
  78 #define MAS3_UW                 0x00000008
  79 #define MAS3_SW                 0x00000004
  80 #define MAS3_UR                 0x00000002
  81 #define MAS3_SR                 0x00000001
  82 #define MAS3_SPSIZE             0x0000003e
  83 #define MAS3_SPSIZE_SHIFT       1
  84
  85 #define MAS4_TLBSELD(x)         MAS0_TLBSEL(x)
  86 #define MAS4_INDD               0x00008000      /* Default IND */
  87 #define MAS4_TSIZED(x)          MAS1_TSIZE(x)
  88 #define MAS4_X0D                0x00000040
  89 #define MAS4_X1D                0x00000020
  90 #define MAS4_WD                 0x00000010
  91 #define MAS4_ID                 0x00000008
  92 #define MAS4_MD                 0x00000004
  93 #define MAS4_GD                 0x00000002
  94 #define MAS4_ED                 0x00000001
  95 #define MAS4_WIMGED_MASK        0x0000001f      /* Default WIMGE */
  96 #define MAS4_WIMGED_SHIFT       0
  97 #define MAS4_VLED               MAS4_X1D        /* Default VLE */
  98 #define MAS4_ACMD               0x000000c0      /* Default ACM */
  99 #define MAS4_ACMD_SHIFT         6
 100 #define MAS4_TSIZED_MASK        0x00000f80      /* Default TSIZE */
 101 #define MAS4_TSIZED_SHIFT       7
 102
 103 #define MAS6_SPID0              0x3FFF0000
 104 #define MAS6_SPID1              0x00007FFE
 105 #define MAS6_ISIZE(x)           MAS1_TSIZE(x)
 106 #define MAS6_SAS                0x00000001
 107 #define MAS6_SPID               MAS6_SPID0
 108 #define MAS6_SIND               0x00000002      /* Indirect page */
 109 #define MAS6_SIND_SHIFT         1
 110 #define MAS6_SPID_MASK          0x3fff0000
 111 #define MAS6_SPID_SHIFT         16
 112 #define MAS6_ISIZE_MASK         0x00000f80
 113 #define MAS6_ISIZE_SHIFT        7
 114
 115 #define MAS7_RPN                0xFFFFFFFF
 116
 117 /* Bit definitions for MMUCFG */
 118 #define MMUCFG_MAVN     0x00000003      /* MMU Architecture Version Number */
 119 #define MMUCFG_MAVN_V1  0x00000000      /* v1.0 */
 120 #define MMUCFG_MAVN_V2  0x00000001      /* v2.0 */
 121 #define MMUCFG_NTLBS    0x0000000c      /* Number of TLBs */
 122 #define MMUCFG_PIDSIZE  0x000007c0      /* PID Reg Size */
 123 #define MMUCFG_TWC      0x00008000      /* TLB Write Conditional (v2.0) */
 124 #define MMUCFG_LRAT     0x00010000      /* LRAT Supported (v2.0) */
 125 #define MMUCFG_RASIZE   0x00fe0000      /* Real Addr Size */
 126 #define MMUCFG_LPIDSIZE 0x0f000000      /* LPID Reg Size */
 127
 128 /* Bit definitions for MMUCSR0 */
 129 #define MMUCSR0_TLB1FI  0x00000002      /* TLB1 Flash invalidate */
 130 #define MMUCSR0_TLB0FI  0x00000004      /* TLB0 Flash invalidate */
 131 #define MMUCSR0_TLB2FI  0x00000040      /* TLB2 Flash invalidate */
 132 #define MMUCSR0_TLB3FI  0x00000020      /* TLB3 Flash invalidate */
 133 #define MMUCSR0_TLBFI   (MMUCSR0_TLB0FI | MMUCSR0_TLB1FI | \
 134                          MMUCSR0_TLB2FI | MMUCSR0_TLB3FI)
 135 #define MMUCSR0_TLB0PS  0x00000780      /* TLB0 Page Size */
 136 #define MMUCSR0_TLB1PS  0x00007800      /* TLB1 Page Size */
 137 #define MMUCSR0_TLB2PS  0x00078000      /* TLB2 Page Size */
 138 #define MMUCSR0_TLB3PS  0x00780000      /* TLB3 Page Size */
 139
 140 /* TLBnCFG encoding */
 141 #define TLBnCFG_N_ENTRY         0x00000fff      /* number of entries */
 142 #define TLBnCFG_HES             0x00002000      /* HW select supported */
 143 #define TLBnCFG_IPROT           0x00008000      /* IPROT supported */
 144 #define TLBnCFG_GTWE            0x00010000      /* Guest can write */
 145 #define TLBnCFG_IND             0x00020000      /* IND entries supported */
 146 #define TLBnCFG_PT              0x00040000      /* Can load from page table */
 147 #define TLBnCFG_MINSIZE         0x00f00000      /* Minimum Page Size (v1.0) */
 148 #define TLBnCFG_MINSIZE_SHIFT   20
 149 #define TLBnCFG_MAXSIZE         0x000f0000      /* Maximum Page Size (v1.0) */
 150 #define TLBnCFG_MAXSIZE_SHIFT   16
 151 #define TLBnCFG_ASSOC           0xff000000      /* Associativity */
 152
 153 /* TLBnPS encoding */
 154 #define TLBnPS_4K               0x00000004
 155 #define TLBnPS_8K               0x00000008
 156 #define TLBnPS_16K              0x00000010
 157 #define TLBnPS_32K              0x00000020
 158 #define TLBnPS_64K              0x00000040
 159 #define TLBnPS_128K             0x00000080
 160 #define TLBnPS_256K             0x00000100
 161 #define TLBnPS_512K             0x00000200
 162 #define TLBnPS_1M               0x00000400
 163 #define TLBnPS_2M               0x00000800
 164 #define TLBnPS_4M               0x00001000
 165 #define TLBnPS_8M               0x00002000
 166 #define TLBnPS_16M              0x00004000
 167 #define TLBnPS_32M              0x00008000
 168 #define TLBnPS_64M              0x00010000
 169 #define TLBnPS_128M             0x00020000
 170 #define TLBnPS_256M             0x00040000
 171 #define TLBnPS_512M             0x00080000
 172 #define TLBnPS_1G               0x00100000
 173 #define TLBnPS_2G               0x00200000
 174 #define TLBnPS_4G               0x00400000
 175 #define TLBnPS_8G               0x00800000
 176 #define TLBnPS_16G              0x01000000
 177 #define TLBnPS_32G              0x02000000
 178 #define TLBnPS_64G              0x04000000
 179 #define TLBnPS_128G             0x08000000
 180 #define TLBnPS_256G             0x10000000
 181
 182 /* tlbilx action encoding */
 183 #define TLBILX_T_ALL                    0
 184 #define TLBILX_T_TID                    1
 185 #define TLBILX_T_FULLMATCH              3
 186 #define TLBILX_T_CLASS0                 4
 187 #define TLBILX_T_CLASS1                 5
 188 #define TLBILX_T_CLASS2                 6
 189 #define TLBILX_T_CLASS3                 7
 190
 191 #ifndef __ASSEMBLY__
 192
 193 extern unsigned int tlbcam_index;
 194
 195 typedef struct {
 196         unsigned int    id;
 197         unsigned int    active;
 198         unsigned long   vdso_base;
 199 } mm_context_t;
 200
 201 /* Page size definitions, common between 32 and 64-bit
 202  *
 203  *    shift : is the "PAGE_SHIFT" value for that page size
 204  *    penc  : is the pte encoding mask
 205  *
 206  */
 207 struct mmu_psize_def
 208 {
 209         unsigned int    shift;  /* number of bits */
 210         unsigned int    enc;    /* PTE encoding */
 211         unsigned int    ind;    /* Corresponding indirect page size shift */
 212         unsigned int    flags;
 213 #define MMU_PAGE_SIZE_DIRECT    0x1     /* Supported as a direct size */
 214 #define MMU_PAGE_SIZE_INDIRECT  0x2     /* Supported as an indirect size */
 215 };
 216 extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
 217
 218 /* The page sizes use the same names as 64-bit hash but are
 219  * constants
 220  */
 221 #if defined(CONFIG_PPC_4K_PAGES)
 222 #define mmu_virtual_psize       MMU_PAGE_4K
 223 #elif defined(CONFIG_PPC_64K_PAGES)
 224 #define mmu_virtual_psize       MMU_PAGE_64K
 225 #else
 226 #error Unsupported page size
 227 #endif
 228
 229 extern int mmu_linear_psize;
 230 extern int mmu_vmemmap_psize;
 231
 232 #endif /* !__ASSEMBLY__ */
 233
 234 #endif /* _ASM_POWERPC_MMU_BOOK3E_H_ */