LXR qemu/target-ppc/mmu-hash32.h

   1#if !defined (__MMU_HASH32_H__)
   2#define __MMU_HASH32_H__
   3
   4#ifndef CONFIG_USER_ONLY
   5
   6hwaddr get_pteg_offset32(PowerPCCPU *cpu, hwaddr hash);
   7hwaddr ppc_hash32_get_phys_page_debug(PowerPCCPU *cpu, target_ulong addr);
   8int 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
  68static 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
  77static 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
  87static 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
  96static 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
 106typedef struct {
 107    uint32_t pte0, pte1;
 108} ppc_hash_pte32_t;
 109
 110#endif /* CONFIG_USER_ONLY */
 111
 112#endif /* __MMU_HASH32_H__ */
 113