Lines Matching full:its
82 * value of BASER register configuration and ITS page size.
94 * The ITS structure - contains most of the infrastructure, with the
128 #define is_v4(its) (!!((its)->typer & GITS_TYPER_VLPIS)) argument
129 #define is_v4_1(its) (!!((its)->typer & GITS_TYPER_VMAPP)) argument
130 #define device_ids(its) (FIELD_GET(GITS_TYPER_DEVBITS, (its)->typer) + 1) argument
162 * The ITS view of a device - belongs to an ITS, owns an interrupt
163 * translation table, and a list of interrupts. If it some of its
169 struct its_node *its; member
295 static bool require_its_list_vmovp(struct its_vm *vm, struct its_node *its) in require_its_list_vmovp() argument
297 return (gic_rdists->has_rvpeid || vm->vlpi_count[its->list_nr]); in require_its_list_vmovp()
307 struct its_node *its; in get_its_list() local
310 list_for_each_entry(its, &its_nodes, entry) { in get_its_list()
311 if (!is_v4(its)) in get_its_list()
314 if (require_its_list_vmovp(vm, its)) in get_its_list()
315 __set_bit(its->list_nr, &its_list); in get_its_list()
330 struct its_node *its = its_dev->its; in dev_event_to_col() local
332 return its->collections + its_dev->event_map.col_map[event]; in dev_event_to_col()
419 static struct its_vpe *valid_vpe(struct its_node *its, struct its_vpe *vpe) in valid_vpe() argument
421 if (valid_col(its->collections + vpe->col_idx)) in valid_vpe()
428 * ITS command descriptors - parameters to be encoded in a command
527 * The ITS command block, which is what the ITS actually parses.
705 static struct its_collection *its_build_mapd_cmd(struct its_node *its, in its_build_mapd_cmd() argument
725 static struct its_collection *its_build_mapc_cmd(struct its_node *its, in its_build_mapc_cmd() argument
739 static struct its_collection *its_build_mapti_cmd(struct its_node *its, in its_build_mapti_cmd() argument
759 static struct its_collection *its_build_movi_cmd(struct its_node *its, in its_build_movi_cmd() argument
778 static struct its_collection *its_build_discard_cmd(struct its_node *its, in its_build_discard_cmd() argument
796 static struct its_collection *its_build_inv_cmd(struct its_node *its, in its_build_inv_cmd() argument
814 static struct its_collection *its_build_int_cmd(struct its_node *its, in its_build_int_cmd() argument
832 static struct its_collection *its_build_clear_cmd(struct its_node *its, in its_build_clear_cmd() argument
850 static struct its_collection *its_build_invall_cmd(struct its_node *its, in its_build_invall_cmd() argument
862 static struct its_vpe *its_build_vinvall_cmd(struct its_node *its, in its_build_vinvall_cmd() argument
871 return valid_vpe(its, desc->its_vinvall_cmd.vpe); in its_build_vinvall_cmd()
874 static struct its_vpe *its_build_vmapp_cmd(struct its_node *its, in its_build_vmapp_cmd() argument
878 struct its_vpe *vpe = valid_vpe(its, desc->its_vmapp_cmd.vpe); in its_build_vmapp_cmd()
889 if (is_v4_1(its)) { in its_build_vmapp_cmd()
902 target = desc->its_vmapp_cmd.col->target_address + its->vlpi_redist_offset; in its_build_vmapp_cmd()
910 if (!is_v4_1(its)) in its_build_vmapp_cmd()
933 static struct its_vpe *its_build_vmapti_cmd(struct its_node *its, in its_build_vmapti_cmd() argument
939 if (!is_v4_1(its) && desc->its_vmapti_cmd.db_enabled) in its_build_vmapti_cmd()
953 return valid_vpe(its, desc->its_vmapti_cmd.vpe); in its_build_vmapti_cmd()
956 static struct its_vpe *its_build_vmovi_cmd(struct its_node *its, in its_build_vmovi_cmd() argument
962 if (!is_v4_1(its) && desc->its_vmovi_cmd.db_enabled) in its_build_vmovi_cmd()
976 return valid_vpe(its, desc->its_vmovi_cmd.vpe); in its_build_vmovi_cmd()
979 static struct its_vpe *its_build_vmovp_cmd(struct its_node *its, in its_build_vmovp_cmd() argument
985 target = desc->its_vmovp_cmd.col->target_address + its->vlpi_redist_offset; in its_build_vmovp_cmd()
992 if (is_v4_1(its)) { in its_build_vmovp_cmd()
999 return valid_vpe(its, desc->its_vmovp_cmd.vpe); in its_build_vmovp_cmd()
1002 static struct its_vpe *its_build_vinv_cmd(struct its_node *its, in its_build_vinv_cmd() argument
1017 return valid_vpe(its, map->vpe); in its_build_vinv_cmd()
1020 static struct its_vpe *its_build_vint_cmd(struct its_node *its, in its_build_vint_cmd() argument
1035 return valid_vpe(its, map->vpe); in its_build_vint_cmd()
1038 static struct its_vpe *its_build_vclear_cmd(struct its_node *its, in its_build_vclear_cmd() argument
1053 return valid_vpe(its, map->vpe); in its_build_vclear_cmd()
1056 static struct its_vpe *its_build_invdb_cmd(struct its_node *its, in its_build_invdb_cmd() argument
1060 if (WARN_ON(!is_v4_1(its))) in its_build_invdb_cmd()
1068 return valid_vpe(its, desc->its_invdb_cmd.vpe); in its_build_invdb_cmd()
1071 static struct its_vpe *its_build_vsgi_cmd(struct its_node *its, in its_build_vsgi_cmd() argument
1075 if (WARN_ON(!is_v4_1(its))) in its_build_vsgi_cmd()
1088 return valid_vpe(its, desc->its_vsgi_cmd.vpe); in its_build_vsgi_cmd()
1091 static u64 its_cmd_ptr_to_offset(struct its_node *its, in its_cmd_ptr_to_offset() argument
1094 return (ptr - its->cmd_base) * sizeof(*ptr); in its_cmd_ptr_to_offset()
1097 static int its_queue_full(struct its_node *its) in its_queue_full() argument
1102 widx = its->cmd_write - its->cmd_base; in its_queue_full()
1103 ridx = readl_relaxed(its->base + GITS_CREADR) / sizeof(struct its_cmd_block); in its_queue_full()
1105 /* This is incredibly unlikely to happen, unless the ITS locks up. */ in its_queue_full()
1112 static struct its_cmd_block *its_allocate_entry(struct its_node *its) in its_allocate_entry() argument
1117 while (its_queue_full(its)) { in its_allocate_entry()
1120 pr_err_ratelimited("ITS queue not draining\n"); in its_allocate_entry()
1127 cmd = its->cmd_write++; in its_allocate_entry()
1130 if (its->cmd_write == (its->cmd_base + ITS_CMD_QUEUE_NR_ENTRIES)) in its_allocate_entry()
1131 its->cmd_write = its->cmd_base; in its_allocate_entry()
1142 static struct its_cmd_block *its_post_commands(struct its_node *its) in its_post_commands() argument
1144 u64 wr = its_cmd_ptr_to_offset(its, its->cmd_write); in its_post_commands()
1146 writel_relaxed(wr, its->base + GITS_CWRITER); in its_post_commands()
1148 return its->cmd_write; in its_post_commands()
1151 static void its_flush_cmd(struct its_node *its, struct its_cmd_block *cmd) in its_flush_cmd() argument
1155 * the ITS. in its_flush_cmd()
1157 if (its->flags & ITS_FLAGS_CMDQ_NEEDS_FLUSHING) in its_flush_cmd()
1163 static int its_wait_for_range_completion(struct its_node *its, in its_wait_for_range_completion() argument
1171 to_idx = its_cmd_ptr_to_offset(its, to); in its_wait_for_range_completion()
1180 rd_idx = readl_relaxed(its->base + GITS_CREADR); in its_wait_for_range_completion()
1196 pr_err_ratelimited("ITS queue timeout (%llu %llu)\n", in its_wait_for_range_completion()
1210 void name(struct its_node *its, \
1219 raw_spin_lock_irqsave(&its->lock, flags); \
1221 cmd = its_allocate_entry(its); \
1223 raw_spin_unlock_irqrestore(&its->lock, flags); \
1226 sync_obj = builder(its, cmd, desc); \
1227 its_flush_cmd(its, cmd); \
1230 sync_cmd = its_allocate_entry(its); \
1234 buildfn(its, sync_cmd, sync_obj); \
1235 its_flush_cmd(its, sync_cmd); \
1239 rd_idx = readl_relaxed(its->base + GITS_CREADR); \
1240 next_cmd = its_post_commands(its); \
1241 raw_spin_unlock_irqrestore(&its->lock, flags); \
1243 if (its_wait_for_range_completion(its, rd_idx, next_cmd)) \
1244 pr_err_ratelimited("ITS cmd %ps failed\n", builder); \
1247 static void its_build_sync_cmd(struct its_node *its, in its_build_sync_cmd() argument
1260 static void its_build_vsync_cmd(struct its_node *its, in BUILD_SINGLE_CMD_FUNC()
1280 its_send_single_command(dev->its, its_build_int_cmd, &desc); in BUILD_SINGLE_CMD_FUNC()
1290 its_send_single_command(dev->its, its_build_clear_cmd, &desc); in its_send_clear()
1300 its_send_single_command(dev->its, its_build_inv_cmd, &desc); in its_send_inv()
1310 its_send_single_command(dev->its, its_build_mapd_cmd, &desc); in its_send_mapd()
1313 static void its_send_mapc(struct its_node *its, struct its_collection *col, in its_send_mapc() argument
1321 its_send_single_command(its, its_build_mapc_cmd, &desc); in its_send_mapc()
1332 its_send_single_command(dev->its, its_build_mapti_cmd, &desc); in its_send_mapti()
1344 its_send_single_command(dev->its, its_build_movi_cmd, &desc); in its_send_movi()
1354 its_send_single_command(dev->its, its_build_discard_cmd, &desc); in its_send_discard()
1357 static void its_send_invall(struct its_node *its, struct its_collection *col) in its_send_invall() argument
1363 its_send_single_command(its, its_build_invall_cmd, &desc); in its_send_invall()
1377 its_send_single_vcommand(dev->its, its_build_vmapti_cmd, &desc); in its_send_vmapti()
1390 its_send_single_vcommand(dev->its, its_build_vmovi_cmd, &desc); in its_send_vmovi()
1393 static void its_send_vmapp(struct its_node *its, in its_send_vmapp() argument
1400 desc.its_vmapp_cmd.col = &its->collections[vpe->col_idx]; in its_send_vmapp()
1402 its_send_single_vcommand(its, its_build_vmapp_cmd, &desc); in its_send_vmapp()
1408 struct its_node *its; in its_send_vmovp() local
1414 its = list_first_entry(&its_nodes, struct its_node, entry); in its_send_vmovp()
1415 desc.its_vmovp_cmd.col = &its->collections[col_id]; in its_send_vmovp()
1416 its_send_single_vcommand(its, its_build_vmovp_cmd, &desc); in its_send_vmovp()
1433 list_for_each_entry(its, &its_nodes, entry) { in its_send_vmovp()
1434 if (!is_v4(its)) in its_send_vmovp()
1437 if (!require_its_list_vmovp(vpe->its_vm, its)) in its_send_vmovp()
1440 desc.its_vmovp_cmd.col = &its->collections[col_id]; in its_send_vmovp()
1441 its_send_single_vcommand(its, its_build_vmovp_cmd, &desc); in its_send_vmovp()
1445 static void its_send_vinvall(struct its_node *its, struct its_vpe *vpe) in its_send_vinvall() argument
1450 its_send_single_vcommand(its, its_build_vinvall_cmd, &desc); in its_send_vinvall()
1464 its_send_single_vcommand(dev->its, its_build_vinv_cmd, &desc); in its_send_vinv()
1478 its_send_single_vcommand(dev->its, its_build_vint_cmd, &desc); in its_send_vint()
1492 its_send_single_vcommand(dev->its, its_build_vclear_cmd, &desc); in its_send_vclear()
1495 static void its_send_invdb(struct its_node *its, struct its_vpe *vpe) in its_send_invdb() argument
1500 its_send_single_vcommand(its, its_build_invdb_cmd, &desc); in its_send_invdb()
1572 WARN_ON(!is_v4_1(its_dev->its)); in direct_lpi_inv()
1590 (is_v4_1(its_dev->its) || !irqd_is_forwarded_to_vcpu(d))) in lpi_update_config()
1608 if (is_v4_1(its_dev->its)) in its_vlpi_set_doorbell()
1621 * Ideally, we'd issue a VMAPTI to set the doorbell to its LPI in its_vlpi_set_doorbell()
1701 node = its_dev->its->numa_node; in its_select_cpu()
1723 * ITS placed next to two NUMA nodes. in its_select_cpu()
1733 if ((its_dev->its->flags & ITS_FLAGS_WORKAROUND_CAVIUM_23144)) in its_select_cpu()
1751 if ((its_dev->its->flags & ITS_FLAGS_WORKAROUND_CAVIUM_23144) && in its_select_cpu()
1789 target_col = &its_dev->its->collections[cpu]; in its_set_affinity()
1806 struct its_node *its = its_dev->its; in its_irq_get_msi_base() local
1808 return its->phys_base + GITS_TRANSLATER; in its_irq_get_msi_base()
1814 struct its_node *its; in its_irq_compose_msi_msg() local
1817 its = its_dev->its; in its_irq_compose_msi_msg()
1818 addr = its->get_msi_base(its_dev); in its_irq_compose_msi_msg()
1877 static void its_map_vm(struct its_node *its, struct its_vm *vm) in its_map_vm() argument
1888 vm->vlpi_count[its->list_nr]++; in its_map_vm()
1890 if (vm->vlpi_count[its->list_nr] == 1) { in its_map_vm()
1897 its_send_vmapp(its, vpe, true); in its_map_vm()
1899 its_send_vinvall(its, vpe); in its_map_vm()
1904 static void its_unmap_vm(struct its_node *its, struct its_vm *vm) in its_unmap_vm() argument
1906 /* Not using the ITS list? Everything is always mapped. */ in its_unmap_vm()
1912 if (!--vm->vlpi_count[its->list_nr]) { in its_unmap_vm()
1917 its_send_vmapp(its, vm->vpes[i], false); in its_unmap_vm()
1951 /* Ensure all the VPEs are mapped on this ITS */ in its_vlpi_map()
1952 its_map_vm(its_dev->its, info->map->vm); in its_vlpi_map()
2010 /* Potentially unmap the VM from this ITS */ in its_vlpi_unmap()
2011 its_unmap_vm(its_dev->its, its_dev->event_map.vm); in its_vlpi_unmap()
2046 /* Need a v4 ITS */ in its_irq_set_vcpu_affinity()
2047 if (!is_v4(its_dev->its)) in its_irq_set_vcpu_affinity()
2073 .name = "ITS",
2149 pr_debug("ITS: alloc %u:%u\n", *base, nr_lpis); in alloc_lpi_range()
2208 pr_info("ITS: Using hypervisor restricted LPI range [%u]\n", in its_lpi_init()
2217 pr_debug("ITS: Allocator initialized for %u LPIs\n", lpis); in its_lpi_init()
2369 static u64 its_read_baser(struct its_node *its, struct its_baser *baser) in its_read_baser() argument
2371 u32 idx = baser - its->tables; in its_read_baser()
2373 return gits_read_baser(its->base + GITS_BASER + (idx << 3)); in its_read_baser()
2376 static void its_write_baser(struct its_node *its, struct its_baser *baser, in its_write_baser() argument
2379 u32 idx = baser - its->tables; in its_write_baser()
2381 gits_write_baser(val, its->base + GITS_BASER + (idx << 3)); in its_write_baser()
2382 baser->val = its_read_baser(its, baser); in its_write_baser()
2385 static int its_setup_baser(struct its_node *its, struct its_baser *baser, in its_setup_baser() argument
2388 u64 val = its_read_baser(its, baser); in its_setup_baser()
2399 pr_warn("ITS@%pa: %s too large, reduce ITS pages %u->%u\n", in its_setup_baser()
2400 &its->phys_base, its_base_type_string[type], in its_setup_baser()
2406 page = its_alloc_pages_node(its->numa_node, GFP_KERNEL | __GFP_ZERO, order); in its_setup_baser()
2418 pr_err("ITS: no 52bit PA support when psz=%d\n", psz); in its_setup_baser()
2453 its_write_baser(its, baser, val); in its_setup_baser()
2472 pr_err("ITS@%pa: %s doesn't stick: %llx %llx\n", in its_setup_baser()
2473 &its->phys_base, its_base_type_string[type], in its_setup_baser()
2484 pr_info("ITS@%pa: allocated %d %s @%lx (%s, esz %d, psz %dK, shr %d)\n", in its_setup_baser()
2485 &its->phys_base, (int)(PAGE_ORDER_TO_SIZE(order) / (int)tmp), in its_setup_baser()
2494 static bool its_parse_indirect_baser(struct its_node *its, in its_parse_indirect_baser() argument
2498 u64 tmp = its_read_baser(its, baser); in its_parse_indirect_baser()
2512 its_write_baser(its, baser, val | GITS_BASER_INDIRECT); in its_parse_indirect_baser()
2517 * The size of the lvl2 table is equal to ITS page size in its_parse_indirect_baser()
2520 * which is reported by ITS hardware times lvl1 table in its_parse_indirect_baser()
2530 * range of device IDs that the ITS can grok... The ID in its_parse_indirect_baser()
2539 pr_warn("ITS@%pa: %s Table too large, reduce ids %llu->%u\n", in its_parse_indirect_baser()
2540 &its->phys_base, its_base_type_string[type], in its_parse_indirect_baser()
2541 device_ids(its), ids); in its_parse_indirect_baser()
2559 static u32 compute_its_aff(struct its_node *its) in compute_its_aff() argument
2565 * Reencode the ITS SVPET and MPIDR as a GICR_TYPER, and compute in compute_its_aff()
2569 svpet = FIELD_GET(GITS_TYPER_SVPET, its->typer); in compute_its_aff()
2571 val |= FIELD_PREP(GICR_TYPER_AFFINITY, its->mpidr); in compute_its_aff()
2577 struct its_node *its; in find_sibling_its() local
2585 list_for_each_entry(its, &its_nodes, entry) { in find_sibling_its()
2588 if (!is_v4_1(its) || its == cur_its) in find_sibling_its()
2591 if (!FIELD_GET(GITS_TYPER_SVPET, its->typer)) in find_sibling_its()
2594 if (aff != compute_its_aff(its)) in find_sibling_its()
2598 baser = its->tables[2].val; in find_sibling_its()
2602 return its; in find_sibling_its()
2608 static void its_free_tables(struct its_node *its) in its_free_tables() argument
2613 if (its->tables[i].base) { in its_free_tables()
2614 its_free_pages(its->tables[i].base, its->tables[i].order); in its_free_tables()
2615 its->tables[i].base = NULL; in its_free_tables()
2620 static int its_probe_baser_psz(struct its_node *its, struct its_baser *baser) in its_probe_baser_psz() argument
2627 val = its_read_baser(its, baser); in its_probe_baser_psz()
2646 its_write_baser(its, baser, val); in its_probe_baser_psz()
2668 static int its_alloc_tables(struct its_node *its) in its_alloc_tables() argument
2674 if (its->flags & ITS_FLAGS_WORKAROUND_CAVIUM_22375) in its_alloc_tables()
2678 if (its->flags & ITS_FLAGS_FORCE_NON_SHAREABLE) { in its_alloc_tables()
2684 struct its_baser *baser = its->tables + i; in its_alloc_tables()
2685 u64 val = its_read_baser(its, baser); in its_alloc_tables()
2693 if (its_probe_baser_psz(its, baser)) { in its_alloc_tables()
2694 its_free_tables(its); in its_alloc_tables()
2702 indirect = its_parse_indirect_baser(its, baser, &order, in its_alloc_tables()
2703 device_ids(its)); in its_alloc_tables()
2707 if (is_v4_1(its)) { in its_alloc_tables()
2711 if ((sibling = find_sibling_its(its))) { in its_alloc_tables()
2713 its_write_baser(its, baser, baser->val); in its_alloc_tables()
2718 indirect = its_parse_indirect_baser(its, baser, &order, in its_alloc_tables()
2723 err = its_setup_baser(its, baser, cache, shr, order, indirect); in its_alloc_tables()
2725 its_free_tables(its); in its_alloc_tables()
2739 struct its_node *its; in inherit_vpe_l1_table_from_its() local
2746 list_for_each_entry(its, &its_nodes, entry) { in inherit_vpe_l1_table_from_its()
2749 if (!is_v4_1(its)) in inherit_vpe_l1_table_from_its()
2752 if (!FIELD_GET(GITS_TYPER_SVPET, its->typer)) in inherit_vpe_l1_table_from_its()
2755 if (aff != compute_its_aff(its)) in inherit_vpe_l1_table_from_its()
2759 baser = its->tables[2].val; in inherit_vpe_l1_table_from_its()
2764 gic_data_rdist()->vpe_l1_base = its->tables[2].base; in inherit_vpe_l1_table_from_its()
2816 * ours wrt CommonLPIAff. Let's use its own VPROPBASER. in inherit_vpe_l1_table_from_rd()
3026 static int its_alloc_collections(struct its_node *its) in its_alloc_collections() argument
3030 its->collections = kcalloc(nr_cpu_ids, sizeof(*its->collections), in its_alloc_collections()
3032 if (!its->collections) in its_alloc_collections()
3036 its->collections[i].target_address = ~0ULL; in its_alloc_collections()
3133 pr_err_ratelimited("ITS virtual pending table not cleaning\n"); in read_vpend_dirty_clear()
3289 static void its_cpu_init_collection(struct its_node *its) in its_cpu_init_collection() argument
3294 /* avoid cross node collections and its mapping */ in its_cpu_init_collection()
3295 if (its->flags & ITS_FLAGS_WORKAROUND_CAVIUM_23144) { in its_cpu_init_collection()
3299 if (its->numa_node != NUMA_NO_NODE && in its_cpu_init_collection()
3300 its->numa_node != of_node_to_nid(cpu_node)) in its_cpu_init_collection()
3305 * We now have to bind each collection to its target in its_cpu_init_collection()
3308 if (gic_read_typer(its->base + GITS_TYPER) & GITS_TYPER_PTA) { in its_cpu_init_collection()
3310 * This ITS wants the physical address of the in its_cpu_init_collection()
3315 /* This ITS wants a linear CPU number. */ in its_cpu_init_collection()
3321 its->collections[cpu].target_address = target; in its_cpu_init_collection()
3322 its->collections[cpu].col_id = cpu; in its_cpu_init_collection()
3324 its_send_mapc(its, &its->collections[cpu], 1); in its_cpu_init_collection()
3325 its_send_invall(its, &its->collections[cpu]); in its_cpu_init_collection()
3330 struct its_node *its; in its_cpu_init_collections() local
3334 list_for_each_entry(its, &its_nodes, entry) in its_cpu_init_collections()
3335 its_cpu_init_collection(its); in its_cpu_init_collections()
3340 static struct its_device *its_find_device(struct its_node *its, u32 dev_id) in its_find_device() argument
3345 raw_spin_lock_irqsave(&its->lock, flags); in its_find_device()
3347 list_for_each_entry(tmp, &its->its_device_list, entry) { in its_find_device()
3354 raw_spin_unlock_irqrestore(&its->lock, flags); in its_find_device()
3359 static struct its_baser *its_get_baser(struct its_node *its, u32 type) in its_get_baser() argument
3364 if (GITS_BASER_TYPE(its->tables[i].val) == type) in its_get_baser()
3365 return &its->tables[i]; in its_get_baser()
3371 static bool its_alloc_table_entry(struct its_node *its, in its_alloc_table_entry() argument
3392 page = its_alloc_pages_node(its->numa_node, GFP_KERNEL | __GFP_ZERO, in its_alloc_table_entry()
3407 /* Ensure updated table contents are visible to ITS hardware */ in its_alloc_table_entry()
3414 static bool its_alloc_device_table(struct its_node *its, u32 dev_id) in its_alloc_device_table() argument
3418 baser = its_get_baser(its, GITS_BASER_TYPE_DEVICE); in its_alloc_device_table()
3420 /* Don't allow device id that exceeds ITS hardware limit */ in its_alloc_device_table()
3422 return (ilog2(dev_id) < device_ids(its)); in its_alloc_device_table()
3424 return its_alloc_table_entry(its, baser, dev_id); in its_alloc_device_table()
3429 struct its_node *its; in its_alloc_vpe_table() local
3439 list_for_each_entry(its, &its_nodes, entry) { in its_alloc_vpe_table()
3442 if (!is_v4(its)) in its_alloc_vpe_table()
3445 baser = its_get_baser(its, GITS_BASER_TYPE_VCPU); in its_alloc_vpe_table()
3449 if (!its_alloc_table_entry(its, baser, vpe_id)) in its_alloc_vpe_table()
3469 static struct its_device *its_create_device(struct its_node *its, u32 dev_id, in its_create_device() argument
3482 if (!its_alloc_device_table(its, dev_id)) in its_create_device()
3493 sz = nr_ites * (FIELD_GET(GITS_TYPER_ITT_ENTRY_SIZE, its->typer) + 1); in its_create_device()
3496 itt = itt_alloc_pool(its->numa_node, sz); in its_create_device()
3521 dev->its = its; in its_create_device()
3533 raw_spin_lock_irqsave(&its->lock, flags); in its_create_device()
3534 list_add(&dev->entry, &its->its_device_list); in its_create_device()
3535 raw_spin_unlock_irqrestore(&its->lock, flags); in its_create_device()
3537 /* Map device to its ITT */ in its_create_device()
3547 raw_spin_lock_irqsave(&its_dev->its->lock, flags); in its_free_device()
3549 raw_spin_unlock_irqrestore(&its_dev->its->lock, flags); in its_free_device()
3574 struct its_node *its; in its_msi_prepare() local
3584 * are built on top of the ITS. in its_msi_prepare()
3589 its = msi_info->data; in its_msi_prepare()
3593 vpe_proxy.dev->its == its && in its_msi_prepare()
3601 mutex_lock(&its->dev_alloc_lock); in its_msi_prepare()
3602 its_dev = its_find_device(its, dev_id); in its_msi_prepare()
3614 its_dev = its_create_device(its, dev_id, nvec, true); in its_msi_prepare()
3625 mutex_unlock(&its->dev_alloc_lock); in its_msi_prepare()
3663 struct its_node *its = its_dev->its; in its_irq_domain_alloc() local
3673 err = iommu_dma_prepare_msi(info->desc, its->get_msi_base(its_dev)); in its_irq_domain_alloc()
3732 struct its_node *its = its_dev->its; in its_irq_domain_free() local
3746 mutex_lock(&its->dev_alloc_lock); in its_irq_domain_free()
3764 mutex_unlock(&its->dev_alloc_lock); in its_irq_domain_free()
3883 target_col = &vpe_proxy.dev->its->collections[to]; in its_vpe_db_proxy_move()
3911 struct its_node *its; in its_vpe_set_affinity() local
3935 * interrupt to its new location. in its_vpe_set_affinity()
3945 * the mapping state on this VM should the ITS list be in use (see in its_vpe_set_affinity()
3955 * If we are offered another CPU in the same GICv4.1 ITS in its_vpe_set_affinity()
3975 its = find_4_1_its(); in its_vpe_set_affinity()
3976 if (its && its->flags & ITS_FLAGS_WORKAROUND_HISILICON_162100801) in its_vpe_set_affinity()
4032 * would be able to read its coarse map pretty quickly anyway, in its_vpe_schedule()
4054 struct its_node *its; in its_vpe_invall() local
4058 list_for_each_entry(its, &its_nodes, entry) { in its_vpe_invall()
4059 if (!is_v4(its)) in its_vpe_invall()
4062 if (its_list_map && !vpe->its_vm->vlpi_count[its->list_nr]) in its_vpe_invall()
4066 * Sending a VINVALL to a single ITS is enough, as all in its_vpe_invall()
4069 its_send_vinvall(its, vpe); in its_vpe_invall()
4190 static struct its_node *its = NULL; in find_4_1_its() local
4192 if (!its) { in find_4_1_its()
4193 list_for_each_entry(its, &its_nodes, entry) { in find_4_1_its()
4194 if (is_v4_1(its)) in find_4_1_its()
4195 return its; in find_4_1_its()
4199 its = NULL; in find_4_1_its()
4202 return its; in find_4_1_its()
4208 struct its_node *its; in its_vpe_4_1_send_inv() local
4213 * it to the first valid ITS, and let the HW do its magic. in its_vpe_4_1_send_inv()
4215 its = find_4_1_its(); in its_vpe_4_1_send_inv()
4216 if (its) in its_vpe_4_1_send_inv()
4217 its_send_invdb(its, vpe); in its_vpe_4_1_send_inv()
4344 * GICv4.1 allows us to send VSGI commands to any ITS as long as the in its_configure_sgi()
4346 * activation time, we're pretty sure the first GICv4.1 ITS will do. in its_configure_sgi()
4389 struct its_node *its = find_4_1_its(); in its_sgi_set_irqchip_state() local
4394 writeq_relaxed(val, its->sgir_base + GITS_SGIR - SZ_128K); in its_sgi_set_irqchip_state()
4682 struct its_node *its; in its_vpe_irq_domain_activate() local
4696 list_for_each_entry(its, &its_nodes, entry) { in its_vpe_irq_domain_activate()
4697 if (!is_v4(its)) in its_vpe_irq_domain_activate()
4700 its_send_vmapp(its, vpe, true); in its_vpe_irq_domain_activate()
4701 its_send_vinvall(its, vpe); in its_vpe_irq_domain_activate()
4711 struct its_node *its; in its_vpe_irq_domain_deactivate() local
4720 list_for_each_entry(its, &its_nodes, entry) { in its_vpe_irq_domain_deactivate()
4721 if (!is_v4(its)) in its_vpe_irq_domain_deactivate()
4724 its_send_vmapp(its, vpe, false); in its_vpe_irq_domain_deactivate()
4751 * GIC architecture specification requires the ITS to be both in its_force_quiescent()
4758 /* Disable the generation of all interrupts to this ITS */ in its_force_quiescent()
4762 /* Poll GITS_CTLR and wait until ITS becomes quiescent */ in its_force_quiescent()
4779 struct its_node *its = data; in its_enable_quirk_cavium_22375() local
4782 its->typer &= ~GITS_TYPER_DEVBITS; in its_enable_quirk_cavium_22375()
4783 its->typer |= FIELD_PREP(GITS_TYPER_DEVBITS, 20 - 1); in its_enable_quirk_cavium_22375()
4784 its->flags |= ITS_FLAGS_WORKAROUND_CAVIUM_22375; in its_enable_quirk_cavium_22375()
4791 struct its_node *its = data; in its_enable_quirk_cavium_23144() local
4793 its->flags |= ITS_FLAGS_WORKAROUND_CAVIUM_23144; in its_enable_quirk_cavium_23144()
4800 struct its_node *its = data; in its_enable_quirk_qdf2400_e0065() local
4803 its->typer &= ~GITS_TYPER_ITT_ENTRY_SIZE; in its_enable_quirk_qdf2400_e0065()
4804 its->typer |= FIELD_PREP(GITS_TYPER_ITT_ENTRY_SIZE, 16 - 1); in its_enable_quirk_qdf2400_e0065()
4811 struct its_node *its = its_dev->its; in its_irq_get_msi_base_pre_its() local
4814 * The Socionext Synquacer SoC has a so-called 'pre-ITS', in its_irq_get_msi_base_pre_its()
4820 return its->pre_its_base + (its_dev->device_id << 2); in its_irq_get_msi_base_pre_its()
4825 struct its_node *its = data; in its_enable_quirk_socionext_synquacer() local
4829 if (!fwnode_property_read_u32_array(its->fwnode_handle, in its_enable_quirk_socionext_synquacer()
4830 "socionext,synquacer-pre-its", in its_enable_quirk_socionext_synquacer()
4834 its->pre_its_base = pre_its_window[0]; in its_enable_quirk_socionext_synquacer()
4835 its->get_msi_base = its_irq_get_msi_base_pre_its; in its_enable_quirk_socionext_synquacer()
4838 if (device_ids(its) > ids) { in its_enable_quirk_socionext_synquacer()
4839 its->typer &= ~GITS_TYPER_DEVBITS; in its_enable_quirk_socionext_synquacer()
4840 its->typer |= FIELD_PREP(GITS_TYPER_DEVBITS, ids - 1); in its_enable_quirk_socionext_synquacer()
4843 /* the pre-ITS breaks isolation, so disable MSI remapping */ in its_enable_quirk_socionext_synquacer()
4844 its->msi_domain_flags &= ~IRQ_DOMAIN_FLAG_ISOLATED_MSI; in its_enable_quirk_socionext_synquacer()
4852 struct its_node *its = data; in its_enable_quirk_hip07_161600802() local
4858 its->vlpi_redist_offset = SZ_128K; in its_enable_quirk_hip07_161600802()
4864 struct its_node *its = data; in its_enable_rk3588001() local
4870 its->flags |= ITS_FLAGS_FORCE_NON_SHAREABLE; in its_enable_rk3588001()
4878 struct its_node *its = data; in its_set_non_coherent() local
4880 its->flags |= ITS_FLAGS_FORCE_NON_SHAREABLE; in its_set_non_coherent()
4886 struct its_node *its = data; in its_enable_quirk_hip09_162100801() local
4888 its->flags |= ITS_FLAGS_WORKAROUND_HISILICON_162100801; in its_enable_quirk_hip09_162100801()
4906 .desc = "ITS: Cavium errata 22375, 24313",
4914 .desc = "ITS: Cavium erratum 23144",
4922 .desc = "ITS: QDF2400 erratum 0065",
4923 .iidr = 0x00001070, /* QDF2400 ITS rev 1.x */
4932 * implementation, but with a 'pre-ITS' added that requires
4935 .desc = "ITS: Socionext Synquacer pre-ITS",
4943 .desc = "ITS: Hip07 erratum 161600802",
4951 .desc = "ITS: Hip09 erratum 162100801",
4959 .desc = "ITS: Rockchip erratum RK3588001",
4966 .desc = "ITS: non-coherent attribute",
4972 .desc = "ITS: Rockchip erratum RK3568002",
4982 static void its_enable_quirks(struct its_node *its) in its_enable_quirks() argument
4984 u32 iidr = readl_relaxed(its->base + GITS_IIDR); in its_enable_quirks()
4986 gic_enable_quirks(iidr, its_quirks, its); in its_enable_quirks()
4988 if (is_of_node(its->fwnode_handle)) in its_enable_quirks()
4989 gic_enable_of_quirks(to_of_node(its->fwnode_handle), in its_enable_quirks()
4990 its_quirks, its); in its_enable_quirks()
4995 struct its_node *its; in its_save_disable() local
4999 list_for_each_entry(its, &its_nodes, entry) { in its_save_disable()
5002 base = its->base; in its_save_disable()
5003 its->ctlr_save = readl_relaxed(base + GITS_CTLR); in its_save_disable()
5006 pr_err("ITS@%pa: failed to quiesce: %d\n", in its_save_disable()
5007 &its->phys_base, err); in its_save_disable()
5008 writel_relaxed(its->ctlr_save, base + GITS_CTLR); in its_save_disable()
5012 its->cbaser_save = gits_read_cbaser(base + GITS_CBASER); in its_save_disable()
5017 list_for_each_entry_continue_reverse(its, &its_nodes, entry) { in its_save_disable()
5020 base = its->base; in its_save_disable()
5021 writel_relaxed(its->ctlr_save, base + GITS_CTLR); in its_save_disable()
5031 struct its_node *its; in its_restore_enable() local
5035 list_for_each_entry(its, &its_nodes, entry) { in its_restore_enable()
5039 base = its->base; in its_restore_enable()
5042 * Make sure that the ITS is disabled. If it fails to quiesce, in its_restore_enable()
5044 * registers is undefined according to the GIC v3 ITS in its_restore_enable()
5047 * Firmware resuming with the ITS enabled is terminally broken. in its_restore_enable()
5052 pr_err("ITS@%pa: failed to quiesce on resume: %d\n", in its_restore_enable()
5053 &its->phys_base, ret); in its_restore_enable()
5057 gits_write_cbaser(its->cbaser_save, base + GITS_CBASER); in its_restore_enable()
5063 its->cmd_write = its->cmd_base; in its_restore_enable()
5068 struct its_baser *baser = &its->tables[i]; in its_restore_enable()
5073 its_write_baser(its, baser, baser->val); in its_restore_enable()
5075 writel_relaxed(its->ctlr_save, base + GITS_CTLR); in its_restore_enable()
5078 * Reinit the collection if it's stored in the ITS. This is in its_restore_enable()
5082 if (its->collections[smp_processor_id()].col_id < in its_restore_enable()
5084 its_cpu_init_collection(its); in its_restore_enable()
5101 pr_warn("ITS@%pa: Unable to map ITS registers\n", &res->start); in its_map_one()
5108 pr_warn("ITS@%pa: No ITS detected, giving up\n", &res->start); in its_map_one()
5115 pr_warn("ITS@%pa: Failed to quiesce, giving up\n", &res->start); in its_map_one()
5126 static int its_init_domain(struct its_node *its) in its_init_domain() argument
5136 info->data = its; in its_init_domain()
5139 its->msi_domain_flags, 0, in its_init_domain()
5140 its->fwnode_handle, &its_domain_ops, in its_init_domain()
5157 struct its_node *its; in its_init_vpe_domain() local
5162 pr_info("ITS: Using DirectLPI for VPE invalidation\n"); in its_init_vpe_domain()
5166 /* Any ITS will do, even if not v4 */ in its_init_vpe_domain()
5167 its = list_first_entry(&its_nodes, struct its_node, entry); in its_init_vpe_domain()
5176 devid = GENMASK(device_ids(its) - 1, 0); in its_init_vpe_domain()
5177 vpe_proxy.dev = its_create_device(its, devid, entries, false); in its_init_vpe_domain()
5180 pr_err("ITS: Can't allocate GICv4 proxy device\n"); in its_init_vpe_domain()
5188 pr_info("ITS: Allocated DevID %x as GICv4 proxy device (%d slots)\n", in its_init_vpe_domain()
5194 static int __init its_compute_its_list_map(struct its_node *its) in its_compute_its_list_map() argument
5207 pr_err("ITS@%pa: No ITSList entry available!\n", in its_compute_its_list_map()
5208 &its->phys_base); in its_compute_its_list_map()
5212 ctlr = readl_relaxed(its->base + GITS_CTLR); in its_compute_its_list_map()
5215 writel_relaxed(ctlr, its->base + GITS_CTLR); in its_compute_its_list_map()
5216 ctlr = readl_relaxed(its->base + GITS_CTLR); in its_compute_its_list_map()
5223 pr_err("ITS@%pa: Duplicate ITSList entry %d\n", in its_compute_its_list_map()
5224 &its->phys_base, its_number); in its_compute_its_list_map()
5231 static int __init its_probe_one(struct its_node *its) in its_probe_one() argument
5238 its_enable_quirks(its); in its_probe_one()
5240 if (is_v4(its)) { in its_probe_one()
5241 if (!(its->typer & GITS_TYPER_VMOVP)) { in its_probe_one()
5242 err = its_compute_its_list_map(its); in its_probe_one()
5246 its->list_nr = err; in its_probe_one()
5248 pr_info("ITS@%pa: Using ITS number %d\n", in its_probe_one()
5249 &its->phys_base, err); in its_probe_one()
5251 pr_info("ITS@%pa: Single VMOVP capable\n", &its->phys_base); in its_probe_one()
5254 if (is_v4_1(its)) { in its_probe_one()
5255 u32 svpet = FIELD_GET(GITS_TYPER_SVPET, its->typer); in its_probe_one()
5257 its->sgir_base = ioremap(its->phys_base + SZ_128K, SZ_64K); in its_probe_one()
5258 if (!its->sgir_base) { in its_probe_one()
5263 its->mpidr = readl_relaxed(its->base + GITS_MPIDR); in its_probe_one()
5265 pr_info("ITS@%pa: Using GICv4.1 mode %08x %08x\n", in its_probe_one()
5266 &its->phys_base, its->mpidr, svpet); in its_probe_one()
5270 page = its_alloc_pages_node(its->numa_node, in its_probe_one()
5277 its->cmd_base = (void *)page_address(page); in its_probe_one()
5278 its->cmd_write = its->cmd_base; in its_probe_one()
5280 err = its_alloc_tables(its); in its_probe_one()
5284 err = its_alloc_collections(its); in its_probe_one()
5288 baser = (virt_to_phys(its->cmd_base) | in its_probe_one()
5294 gits_write_cbaser(baser, its->base + GITS_CBASER); in its_probe_one()
5295 tmp = gits_read_cbaser(its->base + GITS_CBASER); in its_probe_one()
5297 if (its->flags & ITS_FLAGS_FORCE_NON_SHAREABLE) in its_probe_one()
5310 gits_write_cbaser(baser, its->base + GITS_CBASER); in its_probe_one()
5312 pr_info("ITS: using cache flushing for cmd queue\n"); in its_probe_one()
5313 its->flags |= ITS_FLAGS_CMDQ_NEEDS_FLUSHING; in its_probe_one()
5316 gits_write_cwriter(0, its->base + GITS_CWRITER); in its_probe_one()
5317 ctlr = readl_relaxed(its->base + GITS_CTLR); in its_probe_one()
5319 if (is_v4(its)) in its_probe_one()
5321 writel_relaxed(ctlr, its->base + GITS_CTLR); in its_probe_one()
5323 err = its_init_domain(its); in its_probe_one()
5328 list_add(&its->entry, &its_nodes); in its_probe_one()
5334 its_free_tables(its); in its_probe_one()
5336 its_free_pages(its->cmd_base, get_order(ITS_CMD_QUEUE_SZ)); in its_probe_one()
5338 if (its->sgir_base) in its_probe_one()
5339 iounmap(its->sgir_base); in its_probe_one()
5341 pr_err("ITS@%pa: failed probing (%d)\n", &its->phys_base, err); in its_probe_one()
5498 { .compatible = "arm,gic-v3-its", },
5506 struct its_node *its; in its_node_init() local
5513 pr_info("ITS %pR\n", res); in its_node_init()
5515 its = kzalloc(sizeof(*its), GFP_KERNEL); in its_node_init()
5516 if (!its) in its_node_init()
5519 raw_spin_lock_init(&its->lock); in its_node_init()
5520 mutex_init(&its->dev_alloc_lock); in its_node_init()
5521 INIT_LIST_HEAD(&its->entry); in its_node_init()
5522 INIT_LIST_HEAD(&its->its_device_list); in its_node_init()
5524 its->typer = gic_read_typer(its_base + GITS_TYPER); in its_node_init()
5525 its->base = its_base; in its_node_init()
5526 its->phys_base = res->start; in its_node_init()
5527 its->get_msi_base = its_irq_get_msi_base; in its_node_init()
5528 its->msi_domain_flags = IRQ_DOMAIN_FLAG_ISOLATED_MSI; in its_node_init()
5530 its->numa_node = numa_node; in its_node_init()
5531 its->fwnode_handle = handle; in its_node_init()
5533 return its; in its_node_init()
5540 static void its_node_destroy(struct its_node *its) in its_node_destroy() argument
5542 iounmap(its->base); in its_node_destroy()
5543 kfree(its); in its_node_destroy()
5553 * Make sure *all* the ITS are reset before we probe any, as in its_of_probe()
5554 * they may be sharing memory. If any of the ITS fails to in its_of_probe()
5572 struct its_node *its; in its_of_probe() local
5577 pr_warn("%pOF: no msi-controller property, ITS ignored\n", in its_of_probe()
5588 its = its_node_init(&res, &np->fwnode, of_node_to_nid(np)); in its_of_probe()
5589 if (!its) in its_of_probe()
5592 err = its_probe_one(its); in its_of_probe()
5594 its_node_destroy(its); in its_of_probe()
5609 /* GIC ITS ID */
5644 pr_err("SRAT: Invalid header length %d in ITS affinity\n", in gic_acpi_parse_srat_its()
5657 pr_err("SRAT: Invalid NUMA node %d in ITS affinity\n", node); in gic_acpi_parse_srat_its()
5664 pr_info("SRAT: PXM %d -> ITS %d -> Node %d\n", in gic_acpi_parse_srat_its()
5692 /* free the its_srat_maps after ITS probing */
5708 struct its_node *its; in gic_acpi_parse_madt_its() local
5720 pr_err("ITS@%pa: Unable to allocate GICv3 ITS domain token\n", in gic_acpi_parse_madt_its()
5728 pr_err("ITS@%pa: Unable to register GICv3 ITS domain token (ITS ID %d) to IORT\n", in gic_acpi_parse_madt_its()
5733 its = its_node_init(&res, dom_handle, in gic_acpi_parse_madt_its()
5735 if (!its) { in gic_acpi_parse_madt_its()
5742 its->flags |= ITS_FLAGS_FORCE_NON_SHAREABLE; in gic_acpi_parse_madt_its()
5744 err = its_probe_one(its); in gic_acpi_parse_madt_its()
5775 * Make sure *all* the ITS are reset before we probe any, as in its_acpi_probe()
5776 * they may be sharing memory. If any of the ITS fails to in its_acpi_probe()
5817 struct its_node *its; in its_init() local
5837 pr_warn("ITS: No ITS available, not enabling LPIs\n"); in its_init()
5845 list_for_each_entry(its, &its_nodes, entry) { in its_init()
5846 has_v4 |= is_v4(its); in its_init()
5847 has_v4_1 |= is_v4_1(its); in its_init()
5865 pr_err("ITS: Disabling GICv4 support\n"); in its_init()