Revision 6fc76aa9 target-ppc/mmu-hash32.c
| b/target-ppc/mmu-hash32.c | ||
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| 113 | 113 |
return ret; |
| 114 | 114 |
} |
| 115 | 115 |
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| 116 |
static void hash32_bat_size(CPUPPCState *env, target_ulong *blp, int *validp,
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| 117 |
target_ulong batu, target_ulong batl) |
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static target_ulong hash32_bat_size(CPUPPCState *env,
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target_ulong batu, target_ulong batl)
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| 118 | 118 |
{
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target_ulong bl; |
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int valid; |
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bl = (batu & BATU32_BL) << 15; |
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valid = 0; |
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if (((msr_pr == 0) && (batu & BATU32_VS)) || |
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((msr_pr != 0) && (batu & BATU32_VP))) {
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valid = 1; |
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if ((msr_pr && !(batu & BATU32_VP)) |
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|| (!msr_pr && !(batu & BATU32_VS))) {
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return 0; |
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| 127 | 122 |
} |
| 128 |
*blp = bl; |
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*validp = valid;
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| 123 |
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return BATU32_BEPI & ~((batu & BATU32_BL) << 15);
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| 130 | 125 |
} |
| 131 | 126 |
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| 132 | 127 |
static int hash32_bat_prot(CPUPPCState *env, |
| ... | ... | |
| 145 | 140 |
return prot; |
| 146 | 141 |
} |
| 147 | 142 |
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| 148 |
static void hash32_bat_601_size(CPUPPCState *env, target_ulong *blp, int *validp,
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static target_ulong hash32_bat_601_size(CPUPPCState *env,
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| 149 | 144 |
target_ulong batu, target_ulong batl) |
| 150 | 145 |
{
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target_ulong bl; |
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int valid; |
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bl = (batl & BATL32_601_BL) << 17; |
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LOG_BATS("b %02x ==> bl " TARGET_FMT_lx " msk " TARGET_FMT_lx "\n",
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(uint8_t)(batl & BATL32_601_BL), bl, ~bl); |
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valid = !!(batl & BATL32_601_V); |
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*blp = bl; |
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*validp = valid; |
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if (!(batl & BATL32_601_V)) {
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return 0; |
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} |
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return BATU32_BEPI & ~((batl & BATL32_601_BL) << 17); |
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| 160 | 151 |
} |
| 161 | 152 |
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| 162 | 153 |
static int hash32_bat_601_prot(CPUPPCState *env, |
| ... | ... | |
| 177 | 168 |
target_ulong virtual, int rwx) |
| 178 | 169 |
{
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| 179 | 170 |
target_ulong *BATlt, *BATut; |
| 180 |
target_ulong BEPIl, BEPIu, bl; |
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int i, valid, prot; |
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int i, prot; |
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| 182 | 172 |
int ret = -1; |
| 183 | 173 |
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| 184 | 174 |
LOG_BATS("%s: %cBAT v " TARGET_FMT_lx "\n", __func__,
|
| ... | ... | |
| 193 | 183 |
for (i = 0; i < env->nb_BATs; i++) {
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| 194 | 184 |
target_ulong batu = BATut[i]; |
| 195 | 185 |
target_ulong batl = BATlt[i]; |
| 186 |
target_ulong mask; |
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| 196 | 187 |
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BEPIu = batu & BATU32_BEPIU; |
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BEPIl = batu & BATU32_BEPIL; |
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| 199 | 188 |
if (unlikely(env->mmu_model == POWERPC_MMU_601)) {
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hash32_bat_601_size(env, &bl, &valid, batu, batl);
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mask = hash32_bat_601_size(env, batu, batl);
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| 201 | 190 |
prot = hash32_bat_601_prot(env, batu, batl); |
| 202 | 191 |
} else {
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hash32_bat_size(env, &bl, &valid, batu, batl);
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mask = hash32_bat_size(env, batu, batl);
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| 204 | 193 |
prot = hash32_bat_prot(env, batu, batl); |
| 205 | 194 |
} |
| 206 | 195 |
LOG_BATS("%s: %cBAT%d v " TARGET_FMT_lx " BATu " TARGET_FMT_lx
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| 207 | 196 |
" BATl " TARGET_FMT_lx "\n", __func__, |
| 208 | 197 |
type == ACCESS_CODE ? 'I' : 'D', i, virtual, batu, batl); |
| 209 |
if ((virtual & BATU32_BEPIU) == BEPIu && |
|
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((virtual & BATU32_BEPIL) & ~bl) == BEPIl) {
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if (mask && ((virtual & mask) == (batu & BATU32_BEPI))) {
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| 211 | 200 |
/* BAT matches */ |
| 212 |
if (valid != 0) {
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/* Get physical address */ |
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ctx->raddr = (batl & BATL32_BRPNU) | |
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((virtual & BATU32_BEPIL & bl) | (batl & BATL32_BRPNL)) | |
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(virtual & 0x0001F000); |
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/* Compute access rights */ |
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ctx->prot = prot; |
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ret = ppc_hash32_check_prot(ctx->prot, rwx); |
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if (ret == 0) {
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LOG_BATS("BAT %d match: r " TARGET_FMT_plx " prot=%c%c\n",
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i, ctx->raddr, ctx->prot & PAGE_READ ? 'R' : '-', |
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ctx->prot & PAGE_WRITE ? 'W' : '-'); |
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} |
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break; |
|
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/* Get physical address */ |
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ctx->raddr = (batl & mask) | (virtual & ~mask); |
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ctx->raddr &= TARGET_PAGE_MASK; |
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/* Compute access rights */ |
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ctx->prot = prot; |
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ret = ppc_hash32_check_prot(ctx->prot, rwx); |
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if (ret == 0) {
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LOG_BATS("BAT %d match: r " TARGET_FMT_plx " prot=%c%c\n",
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i, ctx->raddr, ctx->prot & PAGE_READ ? 'R' : '-', |
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ctx->prot & PAGE_WRITE ? 'W' : '-'); |
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| 226 | 211 |
} |
| 212 |
break; |
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| 227 | 213 |
} |
| 228 | 214 |
} |
| 229 | 215 |
if (ret < 0) {
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