xref: /openbmc/qemu/target/ppc/mmu-hash64.h (revision 0b1183e3)
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(FILE *f, fprintf_function cpu_fprintf, PowerPCCPU *cpu);
8 int ppc_store_slb(PowerPCCPU *cpu, target_ulong slot,
9                   target_ulong esid, target_ulong vsid);
10 hwaddr ppc_hash64_get_phys_page_debug(PowerPCCPU *cpu, target_ulong addr);
11 int ppc_hash64_handle_mmu_fault(PowerPCCPU *cpu, vaddr address, int rw,
12                                 int mmu_idx);
13 void ppc_hash64_store_hpte(PowerPCCPU *cpu, hwaddr ptex,
14                            uint64_t pte0, uint64_t pte1);
15 void ppc_hash64_tlb_flush_hpte(PowerPCCPU *cpu,
16                                target_ulong pte_index,
17                                target_ulong pte0, target_ulong pte1);
18 unsigned ppc_hash64_hpte_page_shift_noslb(PowerPCCPU *cpu,
19                                           uint64_t pte0, uint64_t pte1);
20 void ppc_hash64_update_vrma(CPUPPCState *env);
21 void ppc_hash64_update_rmls(CPUPPCState *env);
22 #endif
23 
24 /*
25  * SLB definitions
26  */
27 
28 /* Bits in the SLB ESID word */
29 #define SLB_ESID_ESID           0xFFFFFFFFF0000000ULL
30 #define SLB_ESID_V              0x0000000008000000ULL /* valid */
31 
32 /* Bits in the SLB VSID word */
33 #define SLB_VSID_SHIFT          12
34 #define SLB_VSID_SHIFT_1T       24
35 #define SLB_VSID_SSIZE_SHIFT    62
36 #define SLB_VSID_B              0xc000000000000000ULL
37 #define SLB_VSID_B_256M         0x0000000000000000ULL
38 #define SLB_VSID_B_1T           0x4000000000000000ULL
39 #define SLB_VSID_VSID           0x3FFFFFFFFFFFF000ULL
40 #define SLB_VSID_VRMA           (0x0001FFFFFF000000ULL | SLB_VSID_B_1T)
41 #define SLB_VSID_PTEM           (SLB_VSID_B | SLB_VSID_VSID)
42 #define SLB_VSID_KS             0x0000000000000800ULL
43 #define SLB_VSID_KP             0x0000000000000400ULL
44 #define SLB_VSID_N              0x0000000000000200ULL /* no-execute */
45 #define SLB_VSID_L              0x0000000000000100ULL
46 #define SLB_VSID_C              0x0000000000000080ULL /* class */
47 #define SLB_VSID_LP             0x0000000000000030ULL
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 HPTES_PER_GROUP         8
63 #define HASH_PTE_SIZE_64        16
64 #define HASH_PTEG_SIZE_64       (HASH_PTE_SIZE_64 * HPTES_PER_GROUP)
65 
66 #define HPTE64_V_SSIZE          SLB_VSID_B
67 #define HPTE64_V_SSIZE_256M     SLB_VSID_B_256M
68 #define HPTE64_V_SSIZE_1T       SLB_VSID_B_1T
69 #define HPTE64_V_SSIZE_SHIFT    62
70 #define HPTE64_V_AVPN_SHIFT     7
71 #define HPTE64_V_AVPN           0x3fffffffffffff80ULL
72 #define HPTE64_V_AVPN_VAL(x)    (((x) & HPTE64_V_AVPN) >> HPTE64_V_AVPN_SHIFT)
73 #define HPTE64_V_COMPARE(x, y)  (!(((x) ^ (y)) & 0xffffffffffffff83ULL))
74 #define HPTE64_V_BOLTED         0x0000000000000010ULL
75 #define HPTE64_V_LARGE          0x0000000000000004ULL
76 #define HPTE64_V_SECONDARY      0x0000000000000002ULL
77 #define HPTE64_V_VALID          0x0000000000000001ULL
78 
79 #define HPTE64_R_PP0            0x8000000000000000ULL
80 #define HPTE64_R_TS             0x4000000000000000ULL
81 #define HPTE64_R_KEY_HI         0x3000000000000000ULL
82 #define HPTE64_R_RPN_SHIFT      12
83 #define HPTE64_R_RPN            0x0ffffffffffff000ULL
84 #define HPTE64_R_FLAGS          0x00000000000003ffULL
85 #define HPTE64_R_PP             0x0000000000000003ULL
86 #define HPTE64_R_N              0x0000000000000004ULL
87 #define HPTE64_R_G              0x0000000000000008ULL
88 #define HPTE64_R_M              0x0000000000000010ULL
89 #define HPTE64_R_I              0x0000000000000020ULL
90 #define HPTE64_R_W              0x0000000000000040ULL
91 #define HPTE64_R_WIMG           0x0000000000000078ULL
92 #define HPTE64_R_C              0x0000000000000080ULL
93 #define HPTE64_R_R              0x0000000000000100ULL
94 #define HPTE64_R_KEY_LO         0x0000000000000e00ULL
95 #define HPTE64_R_KEY(x)         ((((x) & HPTE64_R_KEY_HI) >> 57) | \
96                                  (((x) & HPTE64_R_KEY_LO) >> 9))
97 
98 #define HPTE64_V_1TB_SEG        0x4000000000000000ULL
99 #define HPTE64_V_VRMA_MASK      0x4001ffffff000000ULL
100 
101 static inline hwaddr ppc_hash64_hpt_base(PowerPCCPU *cpu)
102 {
103     return cpu->env.spr[SPR_SDR1] & SDR_64_HTABORG;
104 }
105 
106 static inline hwaddr ppc_hash64_hpt_mask(PowerPCCPU *cpu)
107 {
108     if (cpu->vhyp) {
109         PPCVirtualHypervisorClass *vhc =
110             PPC_VIRTUAL_HYPERVISOR_GET_CLASS(cpu->vhyp);
111         return vhc->hpt_mask(cpu->vhyp);
112     }
113     return (1ULL << ((cpu->env.spr[SPR_SDR1] & SDR_64_HTABSIZE) + 18 - 7)) - 1;
114 }
115 
116 struct ppc_hash_pte64 {
117     uint64_t pte0, pte1;
118 };
119 
120 const ppc_hash_pte64_t *ppc_hash64_map_hptes(PowerPCCPU *cpu,
121                                              hwaddr ptex, int n);
122 void ppc_hash64_unmap_hptes(PowerPCCPU *cpu, const ppc_hash_pte64_t *hptes,
123                             hwaddr ptex, int n);
124 
125 static inline uint64_t ppc_hash64_hpte0(PowerPCCPU *cpu,
126                                         const ppc_hash_pte64_t *hptes, int i)
127 {
128     return ldq_p(&(hptes[i].pte0));
129 }
130 
131 static inline uint64_t ppc_hash64_hpte1(PowerPCCPU *cpu,
132                                         const ppc_hash_pte64_t *hptes, int i)
133 {
134     return ldq_p(&(hptes[i].pte1));
135 }
136 
137 #endif /* CONFIG_USER_ONLY */
138 
139 #endif /* MMU_HASH64_H */
140