qemu/target/ppc/mmu-hash64.h
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   1#ifndef MMU_HASH64_H
   2#define MMU_HASH64_H
   3
   4#ifndef CONFIG_USER_ONLY
   5
   6#ifdef TARGET_PPC64
   7void dump_slb(PowerPCCPU *cpu);
   8int ppc_store_slb(PowerPCCPU *cpu, target_ulong slot,
   9                  target_ulong esid, target_ulong vsid);
  10bool ppc_hash64_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAccessType access_type,
  11                      hwaddr *raddrp, int *psizep, int *protp, int mmu_idx,
  12                      bool guest_visible);
  13void ppc_hash64_tlb_flush_hpte(PowerPCCPU *cpu,
  14                               target_ulong pte_index,
  15                               target_ulong pte0, target_ulong pte1);
  16unsigned ppc_hash64_hpte_page_shift_noslb(PowerPCCPU *cpu,
  17                                          uint64_t pte0, uint64_t pte1);
  18void ppc_hash64_init(PowerPCCPU *cpu);
  19void 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_C              0x0000000000000080ULL /* class */
  45#define SLB_VSID_LP             0x0000000000000030ULL
  46#define SLB_VSID_ATTR           0x0000000000000FFFULL
  47#define SLB_VSID_LLP_MASK       (SLB_VSID_L | SLB_VSID_LP)
  48#define SLB_VSID_4K             0x0000000000000000ULL
  49#define SLB_VSID_64K            0x0000000000000110ULL
  50#define SLB_VSID_16M            0x0000000000000100ULL
  51#define SLB_VSID_16G            0x0000000000000120ULL
  52
  53/*
  54 * Hash page table definitions
  55 */
  56
  57#define SDR_64_HTABORG         0x0FFFFFFFFFFC0000ULL
  58#define SDR_64_HTABSIZE        0x000000000000001FULL
  59
  60#define PATE0_HTABORG           0x0FFFFFFFFFFC0000ULL
  61#define HPTES_PER_GROUP         8
  62#define HASH_PTE_SIZE_64        16
  63#define HASH_PTEG_SIZE_64       (HASH_PTE_SIZE_64 * HPTES_PER_GROUP)
  64
  65#define HPTE64_V_SSIZE          SLB_VSID_B
  66#define HPTE64_V_SSIZE_256M     SLB_VSID_B_256M
  67#define HPTE64_V_SSIZE_1T       SLB_VSID_B_1T
  68#define HPTE64_V_SSIZE_SHIFT    62
  69#define HPTE64_V_AVPN_SHIFT     7
  70#define HPTE64_V_AVPN           0x3fffffffffffff80ULL
  71#define HPTE64_V_AVPN_VAL(x)    (((x) & HPTE64_V_AVPN) >> HPTE64_V_AVPN_SHIFT)
  72#define HPTE64_V_COMPARE(x, y)  (!(((x) ^ (y)) & 0xffffffffffffff83ULL))
  73#define HPTE64_V_BOLTED         0x0000000000000010ULL
  74#define HPTE64_V_LARGE          0x0000000000000004ULL
  75#define HPTE64_V_SECONDARY      0x0000000000000002ULL
  76#define HPTE64_V_VALID          0x0000000000000001ULL
  77
  78#define HPTE64_R_PP0            0x8000000000000000ULL
  79#define HPTE64_R_TS             0x4000000000000000ULL
  80#define HPTE64_R_KEY_HI         0x3000000000000000ULL
  81#define HPTE64_R_RPN_SHIFT      12
  82#define HPTE64_R_RPN            0x0ffffffffffff000ULL
  83#define HPTE64_R_FLAGS          0x00000000000003ffULL
  84#define HPTE64_R_PP             0x0000000000000003ULL
  85#define HPTE64_R_N              0x0000000000000004ULL
  86#define HPTE64_R_G              0x0000000000000008ULL
  87#define HPTE64_R_M              0x0000000000000010ULL
  88#define HPTE64_R_I              0x0000000000000020ULL
  89#define HPTE64_R_W              0x0000000000000040ULL
  90#define HPTE64_R_WIMG           0x0000000000000078ULL
  91#define HPTE64_R_C              0x0000000000000080ULL
  92#define HPTE64_R_R              0x0000000000000100ULL
  93#define HPTE64_R_KEY_LO         0x0000000000000e00ULL
  94#define HPTE64_R_KEY(x)         ((((x) & HPTE64_R_KEY_HI) >> 57) | \
  95                                 (((x) & HPTE64_R_KEY_LO) >> 9))
  96
  97#define HPTE64_V_1TB_SEG        0x4000000000000000ULL
  98#define HPTE64_V_VRMA_MASK      0x4001ffffff000000ULL
  99
 100/* Format changes for ARCH v3 */
 101#define HPTE64_V_COMMON_BITS    0x000fffffffffffffULL
 102#define HPTE64_R_3_0_SSIZE_SHIFT 58
 103#define HPTE64_R_3_0_SSIZE_MASK (3ULL << HPTE64_R_3_0_SSIZE_SHIFT)
 104
 105struct ppc_hash_pte64 {
 106    uint64_t pte0, pte1;
 107};
 108
 109const ppc_hash_pte64_t *ppc_hash64_map_hptes(PowerPCCPU *cpu,
 110                                             hwaddr ptex, int n);
 111void ppc_hash64_unmap_hptes(PowerPCCPU *cpu, const ppc_hash_pte64_t *hptes,
 112                            hwaddr ptex, int n);
 113
 114static inline uint64_t ppc_hash64_hpte0(PowerPCCPU *cpu,
 115                                        const ppc_hash_pte64_t *hptes, int i)
 116{
 117    return ldq_p(&(hptes[i].pte0));
 118}
 119
 120static inline uint64_t ppc_hash64_hpte1(PowerPCCPU *cpu,
 121                                        const ppc_hash_pte64_t *hptes, int i)
 122{
 123    return ldq_p(&(hptes[i].pte1));
 124}
 125
 126/*
 127 * MMU Options
 128 */
 129
 130struct PPCHash64PageSize {
 131    uint32_t page_shift;  /* Page shift (or 0) */
 132    uint32_t pte_enc;     /* Encoding in the HPTE (>>12) */
 133};
 134typedef struct PPCHash64PageSize PPCHash64PageSize;
 135
 136struct PPCHash64SegmentPageSizes {
 137    uint32_t page_shift;  /* Base page shift of segment (or 0) */
 138    uint32_t slb_enc;     /* SLB encoding for BookS */
 139    PPCHash64PageSize enc[PPC_PAGE_SIZES_MAX_SZ];
 140};
 141
 142struct PPCHash64Options {
 143#define PPC_HASH64_1TSEG        0x00001
 144#define PPC_HASH64_AMR          0x00002
 145#define PPC_HASH64_CI_LARGEPAGE 0x00004
 146    unsigned flags;
 147    unsigned slb_size;
 148    PPCHash64SegmentPageSizes sps[PPC_PAGE_SIZES_MAX_SZ];
 149};
 150
 151extern const PPCHash64Options ppc_hash64_opts_basic;
 152extern const PPCHash64Options ppc_hash64_opts_POWER7;
 153
 154static inline bool ppc_hash64_has(PowerPCCPU *cpu, unsigned feature)
 155{
 156    return !!(cpu->hash64_opts->flags & feature);
 157}
 158
 159#endif /* CONFIG_USER_ONLY */
 160
 161#if defined(CONFIG_USER_ONLY) || !defined(TARGET_PPC64)
 162static inline void ppc_hash64_init(PowerPCCPU *cpu)
 163{
 164}
 165static inline void ppc_hash64_finalize(PowerPCCPU *cpu)
 166{
 167}
 168#endif
 169
 170#endif /* MMU_HASH64_H */
 171