target-ppc/mmu-hash32.h

   1 #if !defined (__MMU_HASH32_H__)
   2 #define __MMU_HASH32_H__
   3
   4 #ifndef CONFIG_USER_ONLY
   5
   6 hwaddr get_pteg_offset32(PowerPCCPU *cpu, hwaddr hash);
   7 hwaddr ppc_hash32_get_phys_page_debug(PowerPCCPU *cpu, target_ulong addr);
   8 int ppc_hash32_handle_mmu_fault(PowerPCCPU *cpu, target_ulong address, int rw,
   9                                 int mmu_idx);
  10
  11 /*
  12  * Segment register definitions
  13  */
  14
  15 #define SR32_T                  0x80000000
  16 #define SR32_KS                 0x40000000
  17 #define SR32_KP                 0x20000000
  18 #define SR32_NX                 0x10000000
  19 #define SR32_VSID               0x00ffffff
  20
  21 /*
  22  * Block Address Translation (BAT) definitions
  23  */
  24
  25 #define BATU32_BEPI             0xfffe0000
  26 #define BATU32_BL               0x00001ffc
  27 #define BATU32_VS               0x00000002
  28 #define BATU32_VP               0x00000001
  29
  30
  31 #define BATL32_BRPN             0xfffe0000
  32 #define BATL32_WIMG             0x00000078
  33 #define BATL32_PP               0x00000003
  34
  35 /* PowerPC 601 has slightly different BAT registers */
  36
  37 #define BATU32_601_KS           0x00000008
  38 #define BATU32_601_KP           0x00000004
  39 #define BATU32_601_PP           0x00000003
  40
  41 #define BATL32_601_V            0x00000040
  42 #define BATL32_601_BL           0x0000003f
  43
  44 /*
  45  * Hash page table definitions
  46  */
  47
  48 #define HPTES_PER_GROUP         8
  49 #define HASH_PTE_SIZE_32        8
  50 #define HASH_PTEG_SIZE_32       (HASH_PTE_SIZE_32 * HPTES_PER_GROUP)
  51
  52 #define HPTE32_V_VALID          0x80000000
  53 #define HPTE32_V_VSID           0x7fffff80
  54 #define HPTE32_V_SECONDARY      0x00000040
  55 #define HPTE32_V_API            0x0000003f
  56 #define HPTE32_V_COMPARE(x, y)  (!(((x) ^ (y)) & 0x7fffffbf))
  57
  58 #define HPTE32_R_RPN            0xfffff000
  59 #define HPTE32_R_R              0x00000100
  60 #define HPTE32_R_C              0x00000080
  61 #define HPTE32_R_W              0x00000040
  62 #define HPTE32_R_I              0x00000020
  63 #define HPTE32_R_M              0x00000010
  64 #define HPTE32_R_G              0x00000008
  65 #define HPTE32_R_WIMG           0x00000078
  66 #define HPTE32_R_PP             0x00000003
  67
  68 static inline target_ulong ppc_hash32_load_hpte0(PowerPCCPU *cpu,
  69                                                  hwaddr pte_offset)
  70 {
  71     CPUPPCState *env = &cpu->env;
  72
  73     assert(!env->external_htab); /* Not supported on 32-bit for now */
  74     return ldl_phys(CPU(cpu)->as, env->htab_base + pte_offset);
  75 }
  76
  77 static inline target_ulong ppc_hash32_load_hpte1(PowerPCCPU *cpu,
  78                                                  hwaddr pte_offset)
  79 {
  80     CPUPPCState *env = &cpu->env;
  81
  82     assert(!env->external_htab); /* Not supported on 32-bit for now */
  83     return ldl_phys(CPU(cpu)->as,
  84                     env->htab_base + pte_offset + HASH_PTE_SIZE_32 / 2);
  85 }
  86
  87 static inline void ppc_hash32_store_hpte0(PowerPCCPU *cpu,
  88                                           hwaddr pte_offset, target_ulong pte0)
  89 {
  90     CPUPPCState *env = &cpu->env;
  91
  92     assert(!env->external_htab); /* Not supported on 32-bit for now */
  93     stl_phys(CPU(cpu)->as, env->htab_base + pte_offset, pte0);
  94 }
  95
  96 static inline void ppc_hash32_store_hpte1(PowerPCCPU *cpu,
  97                                           hwaddr pte_offset, target_ulong pte1)
  98 {
  99     CPUPPCState *env = &cpu->env;
 100
 101     assert(!env->external_htab); /* Not supported on 32-bit for now */
 102     stl_phys(CPU(cpu)->as,
 103              env->htab_base + pte_offset + HASH_PTE_SIZE_32 / 2, pte1);
 104 }
 105
 106 typedef struct {
 107     uint32_t pte0, pte1;
 108 } ppc_hash_pte32_t;
 109
 110 #endif /* CONFIG_USER_ONLY */
 111
 112 #endif /* __MMU_HASH32_H__ */