diff options
Diffstat (limited to 'arch/sparc64/kernel/pci_psycho.c')
-rw-r--r-- | arch/sparc64/kernel/pci_psycho.c | 44 |
1 files changed, 5 insertions, 39 deletions
diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c index 6ed1ef25e0ac..c03ed5f49d31 100644 --- a/arch/sparc64/kernel/pci_psycho.c +++ b/arch/sparc64/kernel/pci_psycho.c | |||
@@ -1207,13 +1207,9 @@ static void psycho_scan_bus(struct pci_controller_info *p) | |||
1207 | static void psycho_iommu_init(struct pci_controller_info *p) | 1207 | static void psycho_iommu_init(struct pci_controller_info *p) |
1208 | { | 1208 | { |
1209 | struct pci_iommu *iommu = p->pbm_A.iommu; | 1209 | struct pci_iommu *iommu = p->pbm_A.iommu; |
1210 | unsigned long tsbbase, i; | 1210 | unsigned long i; |
1211 | u64 control; | 1211 | u64 control; |
1212 | 1212 | ||
1213 | /* Setup initial software IOMMU state. */ | ||
1214 | spin_lock_init(&iommu->lock); | ||
1215 | iommu->ctx_lowest_free = 1; | ||
1216 | |||
1217 | /* Register addresses. */ | 1213 | /* Register addresses. */ |
1218 | iommu->iommu_control = p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL; | 1214 | iommu->iommu_control = p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL; |
1219 | iommu->iommu_tsbbase = p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE; | 1215 | iommu->iommu_tsbbase = p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE; |
@@ -1240,40 +1236,10 @@ static void psycho_iommu_init(struct pci_controller_info *p) | |||
1240 | /* Leave diag mode enabled for full-flushing done | 1236 | /* Leave diag mode enabled for full-flushing done |
1241 | * in pci_iommu.c | 1237 | * in pci_iommu.c |
1242 | */ | 1238 | */ |
1239 | pci_iommu_table_init(iommu, IO_TSB_SIZE, 0xc0000000, 0xffffffff); | ||
1243 | 1240 | ||
1244 | iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0); | 1241 | psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE, |
1245 | if (!iommu->dummy_page) { | 1242 | __pa(iommu->page_table)); |
1246 | prom_printf("PSYCHO_IOMMU: Error, gfp(dummy_page) failed.\n"); | ||
1247 | prom_halt(); | ||
1248 | } | ||
1249 | memset((void *)iommu->dummy_page, 0, PAGE_SIZE); | ||
1250 | iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page); | ||
1251 | |||
1252 | /* Using assumed page size 8K with 128K entries we need 1MB iommu page | ||
1253 | * table (128K ioptes * 8 bytes per iopte). This is | ||
1254 | * page order 7 on UltraSparc. | ||
1255 | */ | ||
1256 | tsbbase = __get_free_pages(GFP_KERNEL, get_order(IO_TSB_SIZE)); | ||
1257 | if (!tsbbase) { | ||
1258 | prom_printf("PSYCHO_IOMMU: Error, gfp(tsb) failed.\n"); | ||
1259 | prom_halt(); | ||
1260 | } | ||
1261 | iommu->page_table = (iopte_t *)tsbbase; | ||
1262 | iommu->page_table_sz_bits = 17; | ||
1263 | iommu->page_table_map_base = 0xc0000000; | ||
1264 | iommu->dma_addr_mask = 0xffffffff; | ||
1265 | pci_iommu_table_init(iommu, IO_TSB_SIZE); | ||
1266 | |||
1267 | /* We start with no consistent mappings. */ | ||
1268 | iommu->lowest_consistent_map = | ||
1269 | 1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS); | ||
1270 | |||
1271 | for (i = 0; i < PBM_NCLUSTERS; i++) { | ||
1272 | iommu->alloc_info[i].flush = 0; | ||
1273 | iommu->alloc_info[i].next = 0; | ||
1274 | } | ||
1275 | |||
1276 | psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE, __pa(tsbbase)); | ||
1277 | 1243 | ||
1278 | control = psycho_read(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL); | 1244 | control = psycho_read(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL); |
1279 | control &= ~(PSYCHO_IOMMU_CTRL_TSBSZ | PSYCHO_IOMMU_CTRL_TBWSZ); | 1245 | control &= ~(PSYCHO_IOMMU_CTRL_TSBSZ | PSYCHO_IOMMU_CTRL_TBWSZ); |
@@ -1281,7 +1247,7 @@ static void psycho_iommu_init(struct pci_controller_info *p) | |||
1281 | psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL, control); | 1247 | psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL, control); |
1282 | 1248 | ||
1283 | /* If necessary, hook us up for starfire IRQ translations. */ | 1249 | /* If necessary, hook us up for starfire IRQ translations. */ |
1284 | if(this_is_starfire) | 1250 | if (this_is_starfire) |
1285 | p->starfire_cookie = starfire_hookup(p->pbm_A.portid); | 1251 | p->starfire_cookie = starfire_hookup(p->pbm_A.portid); |
1286 | else | 1252 | else |
1287 | p->starfire_cookie = NULL; | 1253 | p->starfire_cookie = NULL; |