target/ppc/mmu-hash64.h

   1 #ifndef MMU_HASH64_H
   2 #define MMU_HASH64_H
   3
   4 #ifndef CONFIG_USER_ONLY
   5
   6 #ifdef TARGET_PPC64
   7 void dump_slb(PowerPCCPU *cpu);
   8 int ppc_store_slb(PowerPCCPU *cpu, target_ulong slot,
   9                   target_ulong esid, target_ulong vsid);
  10 bool ppc_hash64_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAccessType access_type,
  11                       hwaddr *raddrp, int *psizep, int *protp, int mmu_idx,
  12                       bool guest_visible);
  13 void ppc_hash64_tlb_flush_hpte(PowerPCCPU *cpu,
  14                                target_ulong pte_index,
  15                                target_ulong pte0, target_ulong pte1);
  16 unsigned ppc_hash64_hpte_page_shift_noslb(PowerPCCPU *cpu,
  17                                           uint64_t pte0, uint64_t pte1);
  18 void ppc_hash64_init(PowerPCCPU *cpu);
  19 void ppc_hash64_finalize(PowerPCCPU *cpu);
  20 #endif
  21
  22 /*
  23  * SLB definitions
  24  */
  25
  26 /* Bits in the SLB ESID word */
  27 #define SLB_ESID_ESID           0xFFFFFFFFF0000000ULL
  28 #define SLB_ESID_V              0x0000000008000000ULL /* valid */
  29
  30 /* Bits in the SLB VSID word */
  31 #define SLB_VSID_SHIFT          12
  32 #define SLB_VSID_SHIFT_1T       24
  33 #define SLB_VSID_SSIZE_SHIFT    62
  34 #define SLB_VSID_B              0xc000000000000000ULL
  35 #define SLB_VSID_B_256M         0x0000000000000000ULL
  36 #define SLB_VSID_B_1T           0x4000000000000000ULL
  37 #define SLB_VSID_VSID           0x3FFFFFFFFFFFF000ULL
  38 #define SLB_VSID_VRMA           (0x0001FFFFFF000000ULL | SLB_VSID_B_1T)
  39 #define SLB_VSID_PTEM           (SLB_VSID_B | SLB_VSID_VSID)
  40 #define SLB_VSID_KS             0x0000000000000800ULL
  41 #define SLB_VSID_KP             0x0000000000000400ULL
  42 #define SLB_VSID_N              0x0000000000000200ULL /* no-execute */
  43 #define SLB_VSID_L              0x0000000000000100ULL
  44 #define SLB_VSID_L_SHIFT        PPC_BIT_NR(55)
  45 #define SLB_VSID_C              0x0000000000000080ULL /* class */
  46 #define SLB_VSID_LP             0x0000000000000030ULL
  47 #define SLB_VSID_LP_SHIFT       PPC_BIT_NR(59)
  48 #define SLB_VSID_ATTR           0x0000000000000FFFULL
  49 #define SLB_VSID_LLP_MASK       (SLB_VSID_L | SLB_VSID_LP)
  50 #define SLB_VSID_4K             0x0000000000000000ULL
  51 #define SLB_VSID_64K            0x0000000000000110ULL
  52 #define SLB_VSID_16M            0x0000000000000100ULL
  53 #define SLB_VSID_16G            0x0000000000000120ULL
  54
  55 /*
  56  * Hash page table definitions
  57  */
  58
  59 #define SDR_64_HTABORG         0x0FFFFFFFFFFC0000ULL
  60 #define SDR_64_HTABSIZE        0x000000000000001FULL
  61
  62 #define PATE0_HTABORG           0x0FFFFFFFFFFC0000ULL
  63 #define PATE0_PS                PPC_BITMASK(56, 58)
  64 #define PATE0_GET_PS(dw0)       (((dw0) & PATE0_PS) >> PPC_BIT_NR(58))
  65
  66 #define HPTES_PER_GROUP         8
  67 #define HASH_PTE_SIZE_64        16
  68 #define HASH_PTEG_SIZE_64       (HASH_PTE_SIZE_64 * HPTES_PER_GROUP)
  69
  70 #define HPTE64_V_SSIZE          SLB_VSID_B
  71 #define HPTE64_V_SSIZE_256M     SLB_VSID_B_256M
  72 #define HPTE64_V_SSIZE_1T       SLB_VSID_B_1T
  73 #define HPTE64_V_SSIZE_SHIFT    62
  74 #define HPTE64_V_AVPN_SHIFT     7
  75 #define HPTE64_V_AVPN           0x3fffffffffffff80ULL
  76 #define HPTE64_V_AVPN_VAL(x)    (((x) & HPTE64_V_AVPN) >> HPTE64_V_AVPN_SHIFT)
  77 #define HPTE64_V_COMPARE(x, y)  (!(((x) ^ (y)) & 0xffffffffffffff83ULL))
  78 #define HPTE64_V_BOLTED         0x0000000000000010ULL
  79 #define HPTE64_V_LARGE          0x0000000000000004ULL
  80 #define HPTE64_V_SECONDARY      0x0000000000000002ULL
  81 #define HPTE64_V_VALID          0x0000000000000001ULL
  82
  83 #define HPTE64_R_PP0            0x8000000000000000ULL
  84 #define HPTE64_R_TS             0x4000000000000000ULL
  85 #define HPTE64_R_KEY_HI         0x3000000000000000ULL
  86 #define HPTE64_R_RPN_SHIFT      12
  87 #define HPTE64_R_RPN            0x0ffffffffffff000ULL
  88 #define HPTE64_R_FLAGS          0x00000000000003ffULL
  89 #define HPTE64_R_PP             0x0000000000000003ULL
  90 #define HPTE64_R_N              0x0000000000000004ULL
  91 #define HPTE64_R_G              0x0000000000000008ULL
  92 #define HPTE64_R_M              0x0000000000000010ULL
  93 #define HPTE64_R_I              0x0000000000000020ULL
  94 #define HPTE64_R_W              0x0000000000000040ULL
  95 #define HPTE64_R_WIMG           0x0000000000000078ULL
  96 #define HPTE64_R_C              0x0000000000000080ULL
  97 #define HPTE64_R_R              0x0000000000000100ULL
  98 #define HPTE64_R_KEY_LO         0x0000000000000e00ULL
  99 #define HPTE64_R_KEY(x)         ((((x) & HPTE64_R_KEY_HI) >> 57) | \
 100                                  (((x) & HPTE64_R_KEY_LO) >> 9))
 101
 102 #define HPTE64_V_1TB_SEG        0x4000000000000000ULL
 103 #define HPTE64_V_VRMA_MASK      0x4001ffffff000000ULL
 104
 105 /* PTE offsets */
 106 #define HPTE64_DW1              (HASH_PTE_SIZE_64 / 2)
 107 #define HPTE64_DW1_R            (HPTE64_DW1 + 6)
 108 #define HPTE64_DW1_C            (HPTE64_DW1 + 7)
 109
 110 /* Format changes for ARCH v3 */
 111 #define HPTE64_V_COMMON_BITS    0x000fffffffffffffULL
 112 #define HPTE64_R_3_0_SSIZE_SHIFT 58
 113 #define HPTE64_R_3_0_SSIZE_MASK (3ULL << HPTE64_R_3_0_SSIZE_SHIFT)
 114
 115 struct ppc_hash_pte64 {
 116     uint64_t pte0, pte1;
 117 };
 118
 119 const ppc_hash_pte64_t *ppc_hash64_map_hptes(PowerPCCPU *cpu,
 120                                              hwaddr ptex, int n);
 121 void ppc_hash64_unmap_hptes(PowerPCCPU *cpu, const ppc_hash_pte64_t *hptes,
 122                             hwaddr ptex, int n);
 123
 124 static inline uint64_t ppc_hash64_hpte0(PowerPCCPU *cpu,
 125                                         const ppc_hash_pte64_t *hptes, int i)
 126 {
 127     return ldq_p(&(hptes[i].pte0));
 128 }
 129
 130 static inline uint64_t ppc_hash64_hpte1(PowerPCCPU *cpu,
 131                                         const ppc_hash_pte64_t *hptes, int i)
 132 {
 133     return ldq_p(&(hptes[i].pte1));
 134 }
 135
 136 /*
 137  * MMU Options
 138  */
 139
 140 struct PPCHash64PageSize {
 141     uint32_t page_shift;  /* Page shift (or 0) */
 142     uint32_t pte_enc;     /* Encoding in the HPTE (>>12) */
 143 };
 144 typedef struct PPCHash64PageSize PPCHash64PageSize;
 145
 146 struct PPCHash64SegmentPageSizes {
 147     uint32_t page_shift;  /* Base page shift of segment (or 0) */
 148     uint32_t slb_enc;     /* SLB encoding for BookS */
 149     PPCHash64PageSize enc[PPC_PAGE_SIZES_MAX_SZ];
 150 };
 151
 152 struct PPCHash64Options {
 153 #define PPC_HASH64_1TSEG        0x00001
 154 #define PPC_HASH64_AMR          0x00002
 155 #define PPC_HASH64_CI_LARGEPAGE 0x00004
 156     unsigned flags;
 157     unsigned slb_size;
 158     PPCHash64SegmentPageSizes sps[PPC_PAGE_SIZES_MAX_SZ];
 159 };
 160
 161 extern const PPCHash64Options ppc_hash64_opts_basic;
 162 extern const PPCHash64Options ppc_hash64_opts_POWER7;
 163
 164 static inline bool ppc_hash64_has(PowerPCCPU *cpu, unsigned feature)
 165 {
 166     return !!(cpu->hash64_opts->flags & feature);
 167 }
 168
 169 #endif /* CONFIG_USER_ONLY */
 170
 171 #if defined(CONFIG_USER_ONLY) || !defined(TARGET_PPC64)
 172 static inline void ppc_hash64_init(PowerPCCPU *cpu)
 173 {
 174 }
 175 static inline void ppc_hash64_finalize(PowerPCCPU *cpu)
 176 {
 177 }
 178 #endif
 179
 180 #endif /* MMU_HASH64_H */