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(FILE *f, fprintf_function cpu_fprintf, PowerPCCPU *cpu);
   8int ppc_store_slb(PowerPCCPU *cpu, target_ulong slot,
   9                  target_ulong esid, target_ulong vsid);
  10hwaddr ppc_hash64_get_phys_page_debug(PowerPCCPU *cpu, target_ulong addr);
  11int ppc_hash64_handle_mmu_fault(PowerPCCPU *cpu, vaddr address, int rw,
  12                                int mmu_idx);
  13void ppc_hash64_store_hpte(PowerPCCPU *cpu, hwaddr ptex,
  14                           uint64_t pte0, uint64_t pte1);
  15void ppc_hash64_tlb_flush_hpte(PowerPCCPU *cpu,
  16                               target_ulong pte_index,
  17                               target_ulong pte0, target_ulong pte1);
  18unsigned ppc_hash64_hpte_page_shift_noslb(PowerPCCPU *cpu,
  19                                          uint64_t pte0, uint64_t pte1);
  20void ppc_store_lpcr(PowerPCCPU *cpu, target_ulong val);
  21void ppc_hash64_init(PowerPCCPU *cpu);
  22void ppc_hash64_finalize(PowerPCCPU *cpu);
  23void ppc_hash64_filter_pagesizes(PowerPCCPU *cpu,
  24                                 bool (*cb)(void *, uint32_t, uint32_t),
  25                                 void *opaque);
  26#endif
  27
  28/*
  29 * SLB definitions
  30 */
  31
  32/* Bits in the SLB ESID word */
  33#define SLB_ESID_ESID           0xFFFFFFFFF0000000ULL
  34#define SLB_ESID_V              0x0000000008000000ULL /* valid */
  35
  36/* Bits in the SLB VSID word */
  37#define SLB_VSID_SHIFT          12
  38#define SLB_VSID_SHIFT_1T       24
  39#define SLB_VSID_SSIZE_SHIFT    62
  40#define SLB_VSID_B              0xc000000000000000ULL
  41#define SLB_VSID_B_256M         0x0000000000000000ULL
  42#define SLB_VSID_B_1T           0x4000000000000000ULL
  43#define SLB_VSID_VSID           0x3FFFFFFFFFFFF000ULL
  44#define SLB_VSID_VRMA           (0x0001FFFFFF000000ULL | SLB_VSID_B_1T)
  45#define SLB_VSID_PTEM           (SLB_VSID_B | SLB_VSID_VSID)
  46#define SLB_VSID_KS             0x0000000000000800ULL
  47#define SLB_VSID_KP             0x0000000000000400ULL
  48#define SLB_VSID_N              0x0000000000000200ULL /* no-execute */
  49#define SLB_VSID_L              0x0000000000000100ULL
  50#define SLB_VSID_C              0x0000000000000080ULL /* class */
  51#define SLB_VSID_LP             0x0000000000000030ULL
  52#define SLB_VSID_ATTR           0x0000000000000FFFULL
  53#define SLB_VSID_LLP_MASK       (SLB_VSID_L | SLB_VSID_LP)
  54#define SLB_VSID_4K             0x0000000000000000ULL
  55#define SLB_VSID_64K            0x0000000000000110ULL
  56#define SLB_VSID_16M            0x0000000000000100ULL
  57#define SLB_VSID_16G            0x0000000000000120ULL
  58
  59/*
  60 * Hash page table definitions
  61 */
  62
  63#define SDR_64_HTABORG         0x0FFFFFFFFFFC0000ULL
  64#define SDR_64_HTABSIZE        0x000000000000001FULL
  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
 105static inline hwaddr ppc_hash64_hpt_base(PowerPCCPU *cpu)
 106{
 107    if (cpu->vhyp) {
 108        return 0;
 109    }
 110    return cpu->env.spr[SPR_SDR1] & SDR_64_HTABORG;
 111}
 112
 113static inline hwaddr ppc_hash64_hpt_mask(PowerPCCPU *cpu)
 114{
 115    if (cpu->vhyp) {
 116        PPCVirtualHypervisorClass *vhc =
 117            PPC_VIRTUAL_HYPERVISOR_GET_CLASS(cpu->vhyp);
 118        return vhc->hpt_mask(cpu->vhyp);
 119    }
 120    return (1ULL << ((cpu->env.spr[SPR_SDR1] & SDR_64_HTABSIZE) + 18 - 7)) - 1;
 121}
 122
 123struct ppc_hash_pte64 {
 124    uint64_t pte0, pte1;
 125};
 126
 127const ppc_hash_pte64_t *ppc_hash64_map_hptes(PowerPCCPU *cpu,
 128                                             hwaddr ptex, int n);
 129void ppc_hash64_unmap_hptes(PowerPCCPU *cpu, const ppc_hash_pte64_t *hptes,
 130                            hwaddr ptex, int n);
 131
 132static inline uint64_t ppc_hash64_hpte0(PowerPCCPU *cpu,
 133                                        const ppc_hash_pte64_t *hptes, int i)
 134{
 135    return ldq_p(&(hptes[i].pte0));
 136}
 137
 138static inline uint64_t ppc_hash64_hpte1(PowerPCCPU *cpu,
 139                                        const ppc_hash_pte64_t *hptes, int i)
 140{
 141    return ldq_p(&(hptes[i].pte1));
 142}
 143
 144/*
 145 * MMU Options
 146 */
 147
 148struct PPCHash64PageSize {
 149    uint32_t page_shift;  /* Page shift (or 0) */
 150    uint32_t pte_enc;     /* Encoding in the HPTE (>>12) */
 151};
 152typedef struct PPCHash64PageSize PPCHash64PageSize;
 153
 154struct PPCHash64SegmentPageSizes {
 155    uint32_t page_shift;  /* Base page shift of segment (or 0) */
 156    uint32_t slb_enc;     /* SLB encoding for BookS */
 157    PPCHash64PageSize enc[PPC_PAGE_SIZES_MAX_SZ];
 158};
 159
 160struct PPCHash64Options {
 161#define PPC_HASH64_1TSEG        0x00001
 162#define PPC_HASH64_AMR          0x00002
 163#define PPC_HASH64_CI_LARGEPAGE 0x00004
 164    unsigned flags;
 165    unsigned slb_size;
 166    PPCHash64SegmentPageSizes sps[PPC_PAGE_SIZES_MAX_SZ];
 167};
 168
 169extern const PPCHash64Options ppc_hash64_opts_basic;
 170extern const PPCHash64Options ppc_hash64_opts_POWER7;
 171
 172static inline bool ppc_hash64_has(PowerPCCPU *cpu, unsigned feature)
 173{
 174    return !!(cpu->hash64_opts->flags & feature);
 175}
 176
 177#endif /* CONFIG_USER_ONLY */
 178
 179#if defined(CONFIG_USER_ONLY) || !defined(TARGET_PPC64)
 180static inline void ppc_hash64_init(PowerPCCPU *cpu)
 181{
 182}
 183static inline void ppc_hash64_finalize(PowerPCCPU *cpu)
 184{
 185}
 186#endif
 187
 188#endif /* MMU_HASH64_H */
 189