diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device.c | 973 |
1 files changed, 770 insertions, 203 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index 3de7f616a001..e9cfb80bd436 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -29,11 +29,12 @@ #include "kfd_pm4_headers_vi.h" #include "kfd_pm4_headers_aldebaran.h" #include "cwsr_trap_handler.h" -#include "kfd_iommu.h" #include "amdgpu_amdkfd.h" #include "kfd_smi_events.h" +#include "kfd_svm.h" #include "kfd_migrate.h" #include "amdgpu.h" +#include "amdgpu_xcp.h" #define MQD_SIZE_ALIGNED 768 @@ -42,7 +43,7 @@ * once locked, kfd driver will stop any further GPU execution. * create process (open) will return -EAGAIN. */ -static atomic_t kfd_locked = ATOMIC_INIT(0); +static int kfd_locked; #ifdef CONFIG_DRM_AMDGPU_CIK extern const struct kfd2kgd_calls gfx_v7_kfd2kgd; @@ -51,19 +52,21 @@ extern const struct kfd2kgd_calls gfx_v8_kfd2kgd; extern const struct kfd2kgd_calls gfx_v9_kfd2kgd; extern const struct kfd2kgd_calls arcturus_kfd2kgd; extern const struct kfd2kgd_calls aldebaran_kfd2kgd; +extern const struct kfd2kgd_calls gc_9_4_3_kfd2kgd; extern const struct kfd2kgd_calls gfx_v10_kfd2kgd; extern const struct kfd2kgd_calls gfx_v10_3_kfd2kgd; extern const struct kfd2kgd_calls gfx_v11_kfd2kgd; +extern const struct kfd2kgd_calls gfx_v12_kfd2kgd; static int kfd_gtt_sa_init(struct kfd_dev *kfd, unsigned int buf_size, unsigned int chunk_size); static void kfd_gtt_sa_fini(struct kfd_dev *kfd); -static int kfd_resume(struct kfd_dev *kfd); +static int kfd_resume(struct kfd_node *kfd); static void kfd_device_info_set_sdma_info(struct kfd_dev *kfd) { - uint32_t sdma_version = kfd->adev->ip_versions[SDMA0_HWIP][0]; + uint32_t sdma_version = amdgpu_ip_version(kfd->adev, SDMA0_HWIP, 0); switch (sdma_version) { case IP_VERSION(4, 0, 0):/* VEGA10 */ @@ -80,6 +83,9 @@ static void kfd_device_info_set_sdma_info(struct kfd_dev *kfd) case IP_VERSION(4, 2, 0):/* VEGA20 */ case IP_VERSION(4, 2, 2):/* ARCTURUS */ case IP_VERSION(4, 4, 0):/* ALDEBARAN */ + case IP_VERSION(4, 4, 2): + case IP_VERSION(4, 4, 5): + case IP_VERSION(4, 4, 4): case IP_VERSION(5, 0, 0):/* NAVI10 */ case IP_VERSION(5, 0, 1):/* CYAN_SKILLFISH */ case IP_VERSION(5, 0, 2):/* NAVI14 */ @@ -92,6 +98,12 @@ static void kfd_device_info_set_sdma_info(struct kfd_dev *kfd) case IP_VERSION(6, 0, 1): case IP_VERSION(6, 0, 2): case IP_VERSION(6, 0, 3): + case IP_VERSION(6, 1, 0): + case IP_VERSION(6, 1, 1): + case IP_VERSION(6, 1, 2): + case IP_VERSION(6, 1, 3): + case IP_VERSION(7, 0, 0): + case IP_VERSION(7, 0, 1): kfd->device_info.num_sdma_queues_per_engine = 8; break; default: @@ -101,20 +113,25 @@ static void kfd_device_info_set_sdma_info(struct kfd_dev *kfd) kfd->device_info.num_sdma_queues_per_engine = 8; } + bitmap_zero(kfd->device_info.reserved_sdma_queues_bitmap, KFD_MAX_SDMA_QUEUES); + switch (sdma_version) { case IP_VERSION(6, 0, 0): + case IP_VERSION(6, 0, 1): case IP_VERSION(6, 0, 2): case IP_VERSION(6, 0, 3): + case IP_VERSION(6, 1, 0): + case IP_VERSION(6, 1, 1): + case IP_VERSION(6, 1, 2): + case IP_VERSION(6, 1, 3): + case IP_VERSION(7, 0, 0): + case IP_VERSION(7, 0, 1): /* Reserve 1 for paging and 1 for gfx */ kfd->device_info.num_reserved_sdma_queues_per_engine = 2; /* BIT(0)=engine-0 queue-0; BIT(1)=engine-1 queue-0; BIT(2)=engine-0 queue-1; ... */ - kfd->device_info.reserved_sdma_queues_bitmap = 0xFULL; - break; - case IP_VERSION(6, 0, 1): - /* Reserve 1 for paging and 1 for gfx */ - kfd->device_info.num_reserved_sdma_queues_per_engine = 2; - /* BIT(0)=engine-0 queue-0; BIT(1)=engine-0 queue-1; ... */ - kfd->device_info.reserved_sdma_queues_bitmap = 0x3ULL; + bitmap_set(kfd->device_info.reserved_sdma_queues_bitmap, 0, + kfd->adev->sdma.num_instances * + kfd->device_info.num_reserved_sdma_queues_per_engine); break; default: break; @@ -134,6 +151,14 @@ static void kfd_device_info_set_event_interrupt_class(struct kfd_dev *kfd) case IP_VERSION(9, 4, 0): /* VEGA20 */ case IP_VERSION(9, 4, 1): /* ARCTURUS */ case IP_VERSION(9, 4, 2): /* ALDEBARAN */ + kfd->device_info.event_interrupt_class = &event_interrupt_class_v9; + break; + case IP_VERSION(9, 4, 3): /* GC 9.4.3 */ + case IP_VERSION(9, 4, 4): /* GC 9.4.4 */ + case IP_VERSION(9, 5, 0): /* GC 9.5.0 */ + kfd->device_info.event_interrupt_class = + &event_interrupt_class_v9_4_3; + break; case IP_VERSION(10, 3, 1): /* VANGOGH */ case IP_VERSION(10, 3, 3): /* YELLOW_CARP */ case IP_VERSION(10, 3, 6): /* GC 10.3.6 */ @@ -147,13 +172,22 @@ static void kfd_device_info_set_event_interrupt_class(struct kfd_dev *kfd) case IP_VERSION(10, 3, 2): /* NAVY_FLOUNDER */ case IP_VERSION(10, 3, 4): /* DIMGREY_CAVEFISH */ case IP_VERSION(10, 3, 5): /* BEIGE_GOBY */ - kfd->device_info.event_interrupt_class = &event_interrupt_class_v9; + kfd->device_info.event_interrupt_class = &event_interrupt_class_v10; break; case IP_VERSION(11, 0, 0): case IP_VERSION(11, 0, 1): case IP_VERSION(11, 0, 2): case IP_VERSION(11, 0, 3): case IP_VERSION(11, 0, 4): + case IP_VERSION(11, 5, 0): + case IP_VERSION(11, 5, 1): + case IP_VERSION(11, 5, 2): + case IP_VERSION(11, 5, 3): + kfd->device_info.event_interrupt_class = &event_interrupt_class_v11; + break; + case IP_VERSION(12, 0, 0): + case IP_VERSION(12, 0, 1): + /* GFX12_TODO: Change to v12 version. */ kfd->device_info.event_interrupt_class = &event_interrupt_class_v11; break; default: @@ -184,11 +218,6 @@ static void kfd_device_info_init(struct kfd_dev *kfd, kfd_device_info_set_event_interrupt_class(kfd); - /* Raven */ - if (gc_version == IP_VERSION(9, 1, 0) || - gc_version == IP_VERSION(9, 2, 2)) - kfd->device_info.needs_iommu_device = true; - if (gc_version < IP_VERSION(11, 0, 0)) { /* Navi2x+, Navi1x+ */ if (gc_version == IP_VERSION(10, 3, 6)) @@ -203,6 +232,19 @@ static void kfd_device_info_init(struct kfd_dev *kfd, /* Navi1x+ */ if (gc_version >= IP_VERSION(10, 1, 1)) kfd->device_info.needs_pci_atomics = true; + } else if (gc_version < IP_VERSION(12, 0, 0)) { + /* + * PCIe atomics support acknowledgment in GFX11 RS64 CPFW requires + * MEC version >= 509. Prior RS64 CPFW versions (and all F32) require + * PCIe atomics support. + */ + kfd->device_info.needs_pci_atomics = true; + kfd->device_info.no_atomic_fw_version = kfd->adev->gfx.rs64_enable ? 509 : 0; + } else if (gc_version < IP_VERSION(13, 0, 0)) { + kfd->device_info.needs_pci_atomics = true; + kfd->device_info.no_atomic_fw_version = 2090; + } else { + kfd->device_info.needs_pci_atomics = true; } } else { kfd->device_info.doorbell_size = 4; @@ -215,10 +257,6 @@ static void kfd_device_info_init(struct kfd_dev *kfd, asic_type != CHIP_TONGA) kfd->device_info.supports_cwsr = true; - if (asic_type == CHIP_KAVERI || - asic_type == CHIP_CARRIZO) - kfd->device_info.needs_iommu_device = true; - if (asic_type != CHIP_HAWAII && !vf) kfd->device_info.needs_pci_atomics = true; } @@ -231,7 +269,6 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf) uint32_t gfx_target_version = 0; switch (adev->asic_type) { -#ifdef KFD_SUPPORT_IOMMU_V2 #ifdef CONFIG_DRM_AMDGPU_CIK case CHIP_KAVERI: gfx_target_version = 70000; @@ -244,7 +281,6 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf) if (!vf) f2g = &gfx_v8_kfd2kgd; break; -#endif #ifdef CONFIG_DRM_AMDGPU_CIK case CHIP_HAWAII: gfx_target_version = 70001; @@ -274,13 +310,12 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf) f2g = &gfx_v8_kfd2kgd; break; default: - switch (adev->ip_versions[GC_HWIP][0]) { + switch (amdgpu_ip_version(adev, GC_HWIP, 0)) { /* Vega 10 */ case IP_VERSION(9, 0, 1): gfx_target_version = 90000; f2g = &gfx_v9_kfd2kgd; break; -#ifdef KFD_SUPPORT_IOMMU_V2 /* Raven */ case IP_VERSION(9, 1, 0): case IP_VERSION(9, 2, 2): @@ -288,7 +323,6 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf) if (!vf) f2g = &gfx_v9_kfd2kgd; break; -#endif /* Vega12 */ case IP_VERSION(9, 2, 1): gfx_target_version = 90004; @@ -317,6 +351,15 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf) gfx_target_version = 90010; f2g = &aldebaran_kfd2kgd; break; + case IP_VERSION(9, 4, 3): + case IP_VERSION(9, 4, 4): + gfx_target_version = 90402; + f2g = &gc_9_4_3_kfd2kgd; + break; + case IP_VERSION(9, 5, 0): + gfx_target_version = 90500; + f2g = &gc_9_4_3_kfd2kgd; + break; /* Navi10 */ case IP_VERSION(10, 1, 10): gfx_target_version = 100100; @@ -397,6 +440,30 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf) gfx_target_version = 110001; f2g = &gfx_v11_kfd2kgd; break; + case IP_VERSION(11, 5, 0): + gfx_target_version = 110500; + f2g = &gfx_v11_kfd2kgd; + break; + case IP_VERSION(11, 5, 1): + gfx_target_version = 110501; + f2g = &gfx_v11_kfd2kgd; + break; + case IP_VERSION(11, 5, 2): + gfx_target_version = 110502; + f2g = &gfx_v11_kfd2kgd; + break; + case IP_VERSION(11, 5, 3): + gfx_target_version = 110503; + f2g = &gfx_v11_kfd2kgd; + break; + case IP_VERSION(12, 0, 0): + gfx_target_version = 120000; + f2g = &gfx_v12_kfd2kgd; + break; + case IP_VERSION(12, 0, 1): + gfx_target_version = 120001; + f2g = &gfx_v12_kfd2kgd; + break; default: break; } @@ -404,11 +471,13 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf) } if (!f2g) { - if (adev->ip_versions[GC_HWIP][0]) - dev_err(kfd_device, "GC IP %06x %s not supported in kfd\n", - adev->ip_versions[GC_HWIP][0], vf ? "VF" : ""); + if (amdgpu_ip_version(adev, GC_HWIP, 0)) + dev_info(kfd_device, + "GC IP %06x %s not supported in kfd\n", + amdgpu_ip_version(adev, GC_HWIP, 0), + vf ? "VF" : ""); else - dev_err(kfd_device, "%s %s not supported in kfd\n", + dev_info(kfd_device, "%s %s not supported in kfd\n", amdgpu_asic_name[adev->asic_type], vf ? "VF" : ""); return NULL; } @@ -424,12 +493,9 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf) atomic_set(&kfd->compute_profile, 0); mutex_init(&kfd->doorbell_mutex); - memset(&kfd->doorbell_available_index, 0, - sizeof(kfd->doorbell_available_index)); - - atomic_set(&kfd->sram_ecc_flag, 0); ida_init(&kfd->doorbell_ida); + atomic_set(&kfd->kfd_processes_count, 0); return kfd; } @@ -438,74 +504,222 @@ static void kfd_cwsr_init(struct kfd_dev *kfd) { if (cwsr_enable && kfd->device_info.supports_cwsr) { if (KFD_GC_VERSION(kfd) < IP_VERSION(9, 0, 1)) { - BUILD_BUG_ON(sizeof(cwsr_trap_gfx8_hex) > PAGE_SIZE); + BUILD_BUG_ON(sizeof(cwsr_trap_gfx8_hex) + > KFD_CWSR_TMA_OFFSET); kfd->cwsr_isa = cwsr_trap_gfx8_hex; kfd->cwsr_isa_size = sizeof(cwsr_trap_gfx8_hex); } else if (KFD_GC_VERSION(kfd) == IP_VERSION(9, 4, 1)) { - BUILD_BUG_ON(sizeof(cwsr_trap_arcturus_hex) > PAGE_SIZE); + BUILD_BUG_ON(sizeof(cwsr_trap_arcturus_hex) + > KFD_CWSR_TMA_OFFSET); kfd->cwsr_isa = cwsr_trap_arcturus_hex; kfd->cwsr_isa_size = sizeof(cwsr_trap_arcturus_hex); } else if (KFD_GC_VERSION(kfd) == IP_VERSION(9, 4, 2)) { - BUILD_BUG_ON(sizeof(cwsr_trap_aldebaran_hex) > PAGE_SIZE); + BUILD_BUG_ON(sizeof(cwsr_trap_aldebaran_hex) + > KFD_CWSR_TMA_OFFSET); kfd->cwsr_isa = cwsr_trap_aldebaran_hex; kfd->cwsr_isa_size = sizeof(cwsr_trap_aldebaran_hex); + } else if (KFD_GC_VERSION(kfd) == IP_VERSION(9, 4, 3) || + KFD_GC_VERSION(kfd) == IP_VERSION(9, 4, 4)) { + BUILD_BUG_ON(sizeof(cwsr_trap_gfx9_4_3_hex) + > KFD_CWSR_TMA_OFFSET); + kfd->cwsr_isa = cwsr_trap_gfx9_4_3_hex; + kfd->cwsr_isa_size = sizeof(cwsr_trap_gfx9_4_3_hex); + } else if (KFD_GC_VERSION(kfd) == IP_VERSION(9, 5, 0)) { + BUILD_BUG_ON(sizeof(cwsr_trap_gfx9_5_0_hex) > PAGE_SIZE); + kfd->cwsr_isa = cwsr_trap_gfx9_5_0_hex; + kfd->cwsr_isa_size = sizeof(cwsr_trap_gfx9_5_0_hex); } else if (KFD_GC_VERSION(kfd) < IP_VERSION(10, 1, 1)) { - BUILD_BUG_ON(sizeof(cwsr_trap_gfx9_hex) > PAGE_SIZE); + BUILD_BUG_ON(sizeof(cwsr_trap_gfx9_hex) + > KFD_CWSR_TMA_OFFSET); kfd->cwsr_isa = cwsr_trap_gfx9_hex; kfd->cwsr_isa_size = sizeof(cwsr_trap_gfx9_hex); } else if (KFD_GC_VERSION(kfd) < IP_VERSION(10, 3, 0)) { - BUILD_BUG_ON(sizeof(cwsr_trap_nv1x_hex) > PAGE_SIZE); + BUILD_BUG_ON(sizeof(cwsr_trap_nv1x_hex) + > KFD_CWSR_TMA_OFFSET); kfd->cwsr_isa = cwsr_trap_nv1x_hex; kfd->cwsr_isa_size = sizeof(cwsr_trap_nv1x_hex); } else if (KFD_GC_VERSION(kfd) < IP_VERSION(11, 0, 0)) { - BUILD_BUG_ON(sizeof(cwsr_trap_gfx10_hex) > PAGE_SIZE); + BUILD_BUG_ON(sizeof(cwsr_trap_gfx10_hex) + > KFD_CWSR_TMA_OFFSET); kfd->cwsr_isa = cwsr_trap_gfx10_hex; kfd->cwsr_isa_size = sizeof(cwsr_trap_gfx10_hex); - } else { + } else if (KFD_GC_VERSION(kfd) < IP_VERSION(12, 0, 0)) { + /* The gfx11 cwsr trap handler must fit inside a single + page. */ BUILD_BUG_ON(sizeof(cwsr_trap_gfx11_hex) > PAGE_SIZE); kfd->cwsr_isa = cwsr_trap_gfx11_hex; kfd->cwsr_isa_size = sizeof(cwsr_trap_gfx11_hex); + } else { + BUILD_BUG_ON(sizeof(cwsr_trap_gfx12_hex) + > KFD_CWSR_TMA_OFFSET); + kfd->cwsr_isa = cwsr_trap_gfx12_hex; + kfd->cwsr_isa_size = sizeof(cwsr_trap_gfx12_hex); } kfd->cwsr_enabled = true; } } -static int kfd_gws_init(struct kfd_dev *kfd) +static int kfd_gws_init(struct kfd_node *node) { int ret = 0; + struct kfd_dev *kfd = node->kfd; + uint32_t mes_rev = node->adev->mes.sched_version & AMDGPU_MES_VERSION_MASK; - if (kfd->dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) + if (node->dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) return 0; - if (hws_gws_support || (KFD_IS_SOC15(kfd) && - ((KFD_GC_VERSION(kfd) == IP_VERSION(9, 0, 1) + if (hws_gws_support || (KFD_IS_SOC15(node) && + ((KFD_GC_VERSION(node) == IP_VERSION(9, 0, 1) && kfd->mec2_fw_version >= 0x81b3) || - (KFD_GC_VERSION(kfd) <= IP_VERSION(9, 4, 0) + (KFD_GC_VERSION(node) <= IP_VERSION(9, 4, 0) && kfd->mec2_fw_version >= 0x1b3) || - (KFD_GC_VERSION(kfd) == IP_VERSION(9, 4, 1) + (KFD_GC_VERSION(node) == IP_VERSION(9, 4, 1) && kfd->mec2_fw_version >= 0x30) || - (KFD_GC_VERSION(kfd) == IP_VERSION(9, 4, 2) + (KFD_GC_VERSION(node) == IP_VERSION(9, 4, 2) && kfd->mec2_fw_version >= 0x28) || - (KFD_GC_VERSION(kfd) >= IP_VERSION(10, 3, 0) - && KFD_GC_VERSION(kfd) < IP_VERSION(11, 0, 0) - && kfd->mec2_fw_version >= 0x6b)))) - ret = amdgpu_amdkfd_alloc_gws(kfd->adev, - kfd->adev->gds.gws_size, &kfd->gws); + (KFD_GC_VERSION(node) == IP_VERSION(9, 4, 3) || + KFD_GC_VERSION(node) == IP_VERSION(9, 4, 4)) || + (KFD_GC_VERSION(node) == IP_VERSION(9, 5, 0)) || + (KFD_GC_VERSION(node) >= IP_VERSION(10, 3, 0) + && KFD_GC_VERSION(node) < IP_VERSION(11, 0, 0) + && kfd->mec2_fw_version >= 0x6b) || + (KFD_GC_VERSION(node) >= IP_VERSION(11, 0, 0) + && KFD_GC_VERSION(node) < IP_VERSION(12, 0, 0) + && mes_rev >= 68) || + (KFD_GC_VERSION(node) >= IP_VERSION(12, 0, 0))))) { + if (KFD_GC_VERSION(node) >= IP_VERSION(12, 0, 0)) + node->adev->gds.gws_size = 64; + ret = amdgpu_amdkfd_alloc_gws(node->adev, + node->adev->gds.gws_size, &node->gws); + } return ret; } -static void kfd_smi_init(struct kfd_dev *dev) +static void kfd_smi_init(struct kfd_node *dev) { INIT_LIST_HEAD(&dev->smi_clients); spin_lock_init(&dev->smi_lock); } +static int kfd_init_node(struct kfd_node *node) +{ + int err = -1; + + if (kfd_interrupt_init(node)) { + dev_err(kfd_device, "Error initializing interrupts\n"); + goto kfd_interrupt_error; + } + + node->dqm = device_queue_manager_init(node); + if (!node->dqm) { + dev_err(kfd_device, "Error initializing queue manager\n"); + goto device_queue_manager_error; + } + + if (kfd_gws_init(node)) { + dev_err(kfd_device, "Could not allocate %d gws\n", + node->adev->gds.gws_size); + goto gws_error; + } + + if (kfd_resume(node)) + goto kfd_resume_error; + + if (kfd_topology_add_device(node)) { + dev_err(kfd_device, "Error adding device to topology\n"); + goto kfd_topology_add_device_error; + } + + kfd_smi_init(node); + + return 0; + +kfd_topology_add_device_error: +kfd_resume_error: +gws_error: + device_queue_manager_uninit(node->dqm); +device_queue_manager_error: + kfd_interrupt_exit(node); +kfd_interrupt_error: + if (node->gws) + amdgpu_amdkfd_free_gws(node->adev, node->gws); + + /* Cleanup the node memory here */ + kfree(node); + return err; +} + +static void kfd_cleanup_nodes(struct kfd_dev *kfd, unsigned int num_nodes) +{ + struct kfd_node *knode; + unsigned int i; + + /* + * flush_work ensures that there are no outstanding + * work-queue items that will access interrupt_ring. New work items + * can't be created because we stopped interrupt handling above. + */ + flush_workqueue(kfd->ih_wq); + destroy_workqueue(kfd->ih_wq); + + for (i = 0; i < num_nodes; i++) { + knode = kfd->nodes[i]; + device_queue_manager_uninit(knode->dqm); + kfd_interrupt_exit(knode); + kfd_topology_remove_device(knode); + if (knode->gws) + amdgpu_amdkfd_free_gws(knode->adev, knode->gws); + kfree(knode); + kfd->nodes[i] = NULL; + } +} + +static void kfd_setup_interrupt_bitmap(struct kfd_node *node, + unsigned int kfd_node_idx) +{ + struct amdgpu_device *adev = node->adev; + uint32_t xcc_mask = node->xcc_mask; + uint32_t xcc, mapped_xcc; + /* + * Interrupt bitmap is setup for processing interrupts from + * different XCDs and AIDs. + * Interrupt bitmap is defined as follows: + * 1. Bits 0-15 - correspond to the NodeId field. + * Each bit corresponds to NodeId number. For example, if + * a KFD node has interrupt bitmap set to 0x7, then this + * KFD node will process interrupts with NodeId = 0, 1 and 2 + * in the IH cookie. + * 2. Bits 16-31 - unused. + * + * Please note that the kfd_node_idx argument passed to this + * function is not related to NodeId field received in the + * IH cookie. + * + * In CPX mode, a KFD node will process an interrupt if: + * - the Node Id matches the corresponding bit set in + * Bits 0-15. + * - AND VMID reported in the interrupt lies within the + * VMID range of the node. + */ + for_each_inst(xcc, xcc_mask) { + mapped_xcc = GET_INST(GC, xcc); + node->interrupt_bitmap |= (mapped_xcc % 2 ? 5 : 3) << (4 * (mapped_xcc / 2)); + } + dev_info(kfd_device, "Node: %d, interrupt_bitmap: %x\n", kfd_node_idx, + node->interrupt_bitmap); +} + bool kgd2kfd_device_init(struct kfd_dev *kfd, const struct kgd2kfd_shared_resources *gpu_resources) { - unsigned int size, map_process_packet_size; + unsigned int size, map_process_packet_size, i; + struct kfd_node *node; + uint32_t first_vmid_kfd, last_vmid_kfd, vmid_num_kfd; + unsigned int max_proc_per_quantum; + int partition_mode; + int xcp_idx; kfd->mec_fw_version = amdgpu_amdkfd_get_fw_version(kfd->adev, KGD_ENGINE_MEC1); @@ -515,10 +729,14 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, KGD_ENGINE_SDMA1); kfd->shared_resources = *gpu_resources; - kfd->vm_info.first_vmid_kfd = ffs(gpu_resources->compute_vmid_bitmap)-1; - kfd->vm_info.last_vmid_kfd = fls(gpu_resources->compute_vmid_bitmap)-1; - kfd->vm_info.vmid_num_kfd = kfd->vm_info.last_vmid_kfd - - kfd->vm_info.first_vmid_kfd + 1; + kfd->num_nodes = amdgpu_xcp_get_num_xcp(kfd->adev->xcp_mgr); + + if (kfd->num_nodes == 0) { + dev_err(kfd_device, + "KFD num nodes cannot be 0, num_xcc_in_node: %d\n", + kfd->adev->gfx.num_xcc_per_xcp); + goto out; + } /* Allow BIF to recode atomics to PCIe 3.0 AtomicOps. * 32 and 64-bit requests are possible and must be @@ -537,11 +755,34 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, return false; } + first_vmid_kfd = ffs(gpu_resources->compute_vmid_bitmap)-1; + last_vmid_kfd = fls(gpu_resources->compute_vmid_bitmap)-1; + vmid_num_kfd = last_vmid_kfd - first_vmid_kfd + 1; + + /* For multi-partition capable GPUs, we need special handling for VMIDs + * depending on partition mode. + * In CPX mode, the VMID range needs to be shared between XCDs. + * Additionally, there are 13 VMIDs (3-15) available for KFD. To + * divide them equally, we change starting VMID to 4 and not use + * VMID 3. + * If the VMID range changes for multi-partition capable GPUs, then + * this code MUST be revisited. + */ + if (kfd->adev->xcp_mgr) { + partition_mode = amdgpu_xcp_query_partition_mode(kfd->adev->xcp_mgr, + AMDGPU_XCP_FL_LOCKED); + if (partition_mode == AMDGPU_CPX_PARTITION_MODE && + kfd->num_nodes != 1) { + vmid_num_kfd /= 2; + first_vmid_kfd = last_vmid_kfd + 1 - vmid_num_kfd*2; + } + } + /* Verify module parameters regarding mapped process number*/ if (hws_max_conc_proc >= 0) - kfd->max_proc_per_quantum = min((u32)hws_max_conc_proc, kfd->vm_info.vmid_num_kfd); + max_proc_per_quantum = min((u32)hws_max_conc_proc, vmid_num_kfd); else - kfd->max_proc_per_quantum = kfd->vm_info.vmid_num_kfd; + max_proc_per_quantum = vmid_num_kfd; /* calculate max size of mqds needed for queues */ size = max_num_of_queues_per_device * @@ -589,81 +830,112 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, if (amdgpu_use_xgmi_p2p) kfd->hive_id = kfd->adev->gmc.xgmi.hive_id; - kfd->noretry = kfd->adev->gmc.noretry; - - if (kfd_interrupt_init(kfd)) { - dev_err(kfd_device, "Error initializing interrupts\n"); - goto kfd_interrupt_error; - } + /* + * For multi-partition capable GPUs, the KFD abstracts all partitions + * within a socket as xGMI connected in the topology so assign a unique + * hive id per device based on the pci device location if device is in + * PCIe mode. + */ + if (!kfd->hive_id && kfd->num_nodes > 1) + kfd->hive_id = pci_dev_id(kfd->adev->pdev); - kfd->dqm = device_queue_manager_init(kfd); - if (!kfd->dqm) { - dev_err(kfd_device, "Error initializing queue manager\n"); - goto device_queue_manager_error; - } + kfd->noretry = kfd->adev->gmc.noretry; - /* If supported on this device, allocate global GWS that is shared - * by all KFD processes - */ - if (kfd_gws_init(kfd)) { - dev_err(kfd_device, "Could not allocate %d gws\n", - kfd->adev->gds.gws_size); - goto gws_error; - } + kfd_cwsr_init(kfd); - /* If CRAT is broken, won't set iommu enabled */ - kfd_double_confirm_iommu_support(kfd); + dev_info(kfd_device, "Total number of KFD nodes to be created: %d\n", + kfd->num_nodes); + + /* Allocate the KFD nodes */ + for (i = 0, xcp_idx = 0; i < kfd->num_nodes; i++) { + node = kzalloc(sizeof(struct kfd_node), GFP_KERNEL); + if (!node) + goto node_alloc_error; + + node->node_id = i; + node->adev = kfd->adev; + node->kfd = kfd; + node->kfd2kgd = kfd->kfd2kgd; + node->vm_info.vmid_num_kfd = vmid_num_kfd; + node->xcp = amdgpu_get_next_xcp(kfd->adev->xcp_mgr, &xcp_idx); + /* TODO : Check if error handling is needed */ + if (node->xcp) { + amdgpu_xcp_get_inst_details(node->xcp, AMDGPU_XCP_GFX, + &node->xcc_mask); + ++xcp_idx; + } else { + node->xcc_mask = + (1U << NUM_XCC(kfd->adev->gfx.xcc_mask)) - 1; + } - if (kfd_iommu_device_init(kfd)) { - kfd->use_iommu_v2 = false; - dev_err(kfd_device, "Error initializing iommuv2\n"); - goto device_iommu_error; - } + if (node->xcp) { + dev_info(kfd_device, "KFD node %d partition %d size %lldM\n", + node->node_id, node->xcp->mem_id, + KFD_XCP_MEMORY_SIZE(node->adev, node->node_id) >> 20); + } - kfd_cwsr_init(kfd); + if (partition_mode == AMDGPU_CPX_PARTITION_MODE && + kfd->num_nodes != 1) { + /* For multi-partition capable GPUs and CPX mode, first + * XCD gets VMID range 4-9 and second XCD gets VMID + * range 10-15. + */ + + node->vm_info.first_vmid_kfd = (i%2 == 0) ? + first_vmid_kfd : + first_vmid_kfd+vmid_num_kfd; + node->vm_info.last_vmid_kfd = (i%2 == 0) ? + last_vmid_kfd-vmid_num_kfd : + last_vmid_kfd; + node->compute_vmid_bitmap = + ((0x1 << (node->vm_info.last_vmid_kfd + 1)) - 1) - + ((0x1 << (node->vm_info.first_vmid_kfd)) - 1); + } else { + node->vm_info.first_vmid_kfd = first_vmid_kfd; + node->vm_info.last_vmid_kfd = last_vmid_kfd; + node->compute_vmid_bitmap = + gpu_resources->compute_vmid_bitmap; + } + node->max_proc_per_quantum = max_proc_per_quantum; + atomic_set(&node->sram_ecc_flag, 0); - svm_migrate_init(kfd->adev); + amdgpu_amdkfd_get_local_mem_info(kfd->adev, + &node->local_mem_info, node->xcp); - if (kgd2kfd_resume_iommu(kfd)) - goto device_iommu_error; + if (kfd->adev->xcp_mgr) + kfd_setup_interrupt_bitmap(node, i); - if (kfd_resume(kfd)) - goto kfd_resume_error; + /* Initialize the KFD node */ + if (kfd_init_node(node)) { + dev_err(kfd_device, "Error initializing KFD node\n"); + goto node_init_error; + } - amdgpu_amdkfd_get_local_mem_info(kfd->adev, &kfd->local_mem_info); + spin_lock_init(&node->watch_points_lock); - if (kfd_topology_add_device(kfd)) { - dev_err(kfd_device, "Error adding device to topology\n"); - goto kfd_topology_add_device_error; + kfd->nodes[i] = node; } - kfd_smi_init(kfd); + svm_range_set_max_pages(kfd->adev); kfd->init_complete = true; dev_info(kfd_device, "added device %x:%x\n", kfd->adev->pdev->vendor, kfd->adev->pdev->device); pr_debug("Starting kfd with the following scheduling policy %d\n", - kfd->dqm->sched_policy); + node->dqm->sched_policy); goto out; -kfd_topology_add_device_error: -kfd_resume_error: -device_iommu_error: -gws_error: - device_queue_manager_uninit(kfd->dqm); -device_queue_manager_error: - kfd_interrupt_exit(kfd); -kfd_interrupt_error: +node_init_error: +node_alloc_error: + kfd_cleanup_nodes(kfd, i); kfd_doorbell_fini(kfd); kfd_doorbell_error: kfd_gtt_sa_fini(kfd); kfd_gtt_sa_init_error: - amdgpu_amdkfd_free_gtt_mem(kfd->adev, kfd->gtt_mem); + amdgpu_amdkfd_free_gtt_mem(kfd->adev, &kfd->gtt_mem); alloc_gtt_mem_failure: - if (kfd->gws) - amdgpu_amdkfd_free_gws(kfd->adev, kfd->gws); dev_err(kfd_device, "device %x:%x NOT added due to errors\n", kfd->adev->pdev->vendor, kfd->adev->pdev->device); @@ -674,32 +946,37 @@ out: void kgd2kfd_device_exit(struct kfd_dev *kfd) { if (kfd->init_complete) { - device_queue_manager_uninit(kfd->dqm); - kfd_interrupt_exit(kfd); - kfd_topology_remove_device(kfd); + /* Cleanup KFD nodes */ + kfd_cleanup_nodes(kfd, kfd->num_nodes); + /* Cleanup common/shared resources */ kfd_doorbell_fini(kfd); ida_destroy(&kfd->doorbell_ida); kfd_gtt_sa_fini(kfd); - amdgpu_amdkfd_free_gtt_mem(kfd->adev, kfd->gtt_mem); - if (kfd->gws) - amdgpu_amdkfd_free_gws(kfd->adev, kfd->gws); + amdgpu_amdkfd_free_gtt_mem(kfd->adev, &kfd->gtt_mem); } kfree(kfd); } -int kgd2kfd_pre_reset(struct kfd_dev *kfd) +int kgd2kfd_pre_reset(struct kfd_dev *kfd, + struct amdgpu_reset_context *reset_context) { + struct kfd_node *node; + int i; + if (!kfd->init_complete) return 0; - kfd_smi_event_update_gpu_reset(kfd, false); + for (i = 0; i < kfd->num_nodes; i++) { + node = kfd->nodes[i]; + kfd_smi_event_update_gpu_reset(node, false, reset_context); + } - kfd->dqm->ops.pre_reset(kfd->dqm); + kgd2kfd_suspend(kfd, true); - kgd2kfd_suspend(kfd, false); + for (i = 0; i < kfd->num_nodes; i++) + kfd_signal_reset_event(kfd->nodes[i]); - kfd_signal_reset_event(kfd); return 0; } @@ -712,111 +989,141 @@ int kgd2kfd_pre_reset(struct kfd_dev *kfd) int kgd2kfd_post_reset(struct kfd_dev *kfd) { int ret; + struct kfd_node *node; + int i; if (!kfd->init_complete) return 0; - ret = kfd_resume(kfd); - if (ret) - return ret; - atomic_dec(&kfd_locked); + for (i = 0; i < kfd->num_nodes; i++) { + ret = kfd_resume(kfd->nodes[i]); + if (ret) + return ret; + } - atomic_set(&kfd->sram_ecc_flag, 0); + mutex_lock(&kfd_processes_mutex); + --kfd_locked; + mutex_unlock(&kfd_processes_mutex); - kfd_smi_event_update_gpu_reset(kfd, true); + for (i = 0; i < kfd->num_nodes; i++) { + node = kfd->nodes[i]; + atomic_set(&node->sram_ecc_flag, 0); + kfd_smi_event_update_gpu_reset(node, true, NULL); + } return 0; } -bool kfd_is_locked(void) +bool kfd_is_locked(struct kfd_dev *kfd) { - return (atomic_read(&kfd_locked) > 0); + uint8_t id = 0; + struct kfd_node *dev; + + lockdep_assert_held(&kfd_processes_mutex); + + /* check reset/suspend lock */ + if (kfd_locked > 0) + return true; + + if (kfd) + return kfd->kfd_dev_lock > 0; + + /* check lock on all cgroup accessible devices */ + while (kfd_topology_enum_kfd_devices(id++, &dev) == 0) { + if (!dev || kfd_devcgroup_check_permission(dev)) + continue; + + if (dev->kfd->kfd_dev_lock > 0) + return true; + } + + return false; } -void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm) +void kgd2kfd_suspend(struct kfd_dev *kfd, bool suspend_proc) { + struct kfd_node *node; + int i; + if (!kfd->init_complete) return; - /* for runtime suspend, skip locking kfd */ - if (!run_pm) { - /* For first KFD device suspend all the KFD processes */ - if (atomic_inc_return(&kfd_locked) == 1) - kfd_suspend_all_processes(); - } + if (suspend_proc) + kgd2kfd_suspend_process(kfd); - kfd->dqm->ops.stop(kfd->dqm); - kfd_iommu_suspend(kfd); + for (i = 0; i < kfd->num_nodes; i++) { + node = kfd->nodes[i]; + node->dqm->ops.stop(node->dqm); + } } -int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm) +int kgd2kfd_resume(struct kfd_dev *kfd, bool resume_proc) { - int ret, count; + int ret, i; if (!kfd->init_complete) return 0; - ret = kfd_resume(kfd); - if (ret) - return ret; - - /* for runtime resume, skip unlocking kfd */ - if (!run_pm) { - count = atomic_dec_return(&kfd_locked); - WARN_ONCE(count < 0, "KFD suspend / resume ref. error"); - if (count == 0) - ret = kfd_resume_all_processes(); + for (i = 0; i < kfd->num_nodes; i++) { + ret = kfd_resume(kfd->nodes[i]); + if (ret) + return ret; } + if (resume_proc) + ret = kgd2kfd_resume_process(kfd); + return ret; } -int kgd2kfd_resume_iommu(struct kfd_dev *kfd) +void kgd2kfd_suspend_process(struct kfd_dev *kfd) { - int err = 0; + if (!kfd->init_complete) + return; - err = kfd_iommu_resume(kfd); - if (err) - dev_err(kfd_device, - "Failed to resume IOMMU for device %x:%x\n", - kfd->adev->pdev->vendor, kfd->adev->pdev->device); - return err; + mutex_lock(&kfd_processes_mutex); + /* For first KFD device suspend all the KFD processes */ + if (++kfd_locked == 1) + kfd_suspend_all_processes(); + mutex_unlock(&kfd_processes_mutex); } -static int kfd_resume(struct kfd_dev *kfd) +int kgd2kfd_resume_process(struct kfd_dev *kfd) { - int err = 0; + int ret = 0; - err = kfd->dqm->ops.start(kfd->dqm); - if (err) - dev_err(kfd_device, - "Error starting queue manager for device %x:%x\n", - kfd->adev->pdev->vendor, kfd->adev->pdev->device); + if (!kfd->init_complete) + return 0; - return err; + mutex_lock(&kfd_processes_mutex); + if (--kfd_locked == 0) + ret = kfd_resume_all_processes(); + WARN_ONCE(kfd_locked < 0, "KFD suspend / resume ref. error"); + mutex_unlock(&kfd_processes_mutex); + + return ret; } -static inline void kfd_queue_work(struct workqueue_struct *wq, - struct work_struct *work) +static int kfd_resume(struct kfd_node *node) { - int cpu, new_cpu; + int err = 0; - cpu = new_cpu = smp_processor_id(); - do { - new_cpu = cpumask_next(new_cpu, cpu_online_mask) % nr_cpu_ids; - if (cpu_to_node(new_cpu) == numa_node_id()) - break; - } while (cpu != new_cpu); + err = node->dqm->ops.start(node->dqm); + if (err) + dev_err(kfd_device, + "Error starting queue manager for device %x:%x\n", + node->adev->pdev->vendor, node->adev->pdev->device); - queue_work_on(new_cpu, wq, work); + return err; } /* This is called directly from KGD at ISR. */ void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry) { - uint32_t patched_ihre[KFD_MAX_RING_ENTRY_SIZE]; + uint32_t patched_ihre[KFD_MAX_RING_ENTRY_SIZE], i; bool is_patched = false; unsigned long flags; + struct kfd_node *node; if (!kfd->init_complete) return; @@ -826,16 +1133,30 @@ void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry) return; } - spin_lock_irqsave(&kfd->interrupt_lock, flags); - - if (kfd->interrupts_active - && interrupt_is_wanted(kfd, ih_ring_entry, - patched_ihre, &is_patched) - && enqueue_ih_ring_entry(kfd, - is_patched ? patched_ihre : ih_ring_entry)) - kfd_queue_work(kfd->ih_wq, &kfd->interrupt_work); + for (i = 0; i < kfd->num_nodes; i++) { + /* Race if another thread in b/w + * kfd_cleanup_nodes and kfree(kfd), + * when kfd->nodes[i] = NULL + */ + if (kfd->nodes[i]) + node = kfd->nodes[i]; + else + return; + + spin_lock_irqsave(&node->interrupt_lock, flags); + + if (node->interrupts_active + && interrupt_is_wanted(node, ih_ring_entry, + patched_ihre, &is_patched) + && enqueue_ih_ring_entry(node, + is_patched ? patched_ihre : ih_ring_entry)) { + queue_work(node->kfd->ih_wq, &node->interrupt_work); + spin_unlock_irqrestore(&node->interrupt_lock, flags); + return; + } + spin_unlock_irqrestore(&node->interrupt_lock, flags); + } - spin_unlock_irqrestore(&kfd->interrupt_lock, flags); } int kgd2kfd_quiesce_mm(struct mm_struct *mm, uint32_t trigger) @@ -973,10 +1294,11 @@ static inline uint32_t *kfd_gtt_sa_calc_cpu_addr(void *start_addr, return (uint32_t *) ((uint64_t) start_addr + bit_num * chunk_size); } -int kfd_gtt_sa_allocate(struct kfd_dev *kfd, unsigned int size, +int kfd_gtt_sa_allocate(struct kfd_node *node, unsigned int size, struct kfd_mem_obj **mem_obj) { unsigned int found, start_search, cur_size; + struct kfd_dev *kfd = node->kfd; if (size == 0) return -EINVAL; @@ -1076,8 +1398,10 @@ kfd_gtt_no_free_chunk: return -ENOMEM; } -int kfd_gtt_sa_free(struct kfd_dev *kfd, struct kfd_mem_obj *mem_obj) +int kfd_gtt_sa_free(struct kfd_node *node, struct kfd_mem_obj *mem_obj) { + struct kfd_dev *kfd = node->kfd; + /* Act like kfree when trying to free a NULL object */ if (!mem_obj) return 0; @@ -1099,29 +1423,47 @@ int kfd_gtt_sa_free(struct kfd_dev *kfd, struct kfd_mem_obj *mem_obj) void kgd2kfd_set_sram_ecc_flag(struct kfd_dev *kfd) { + /* + * TODO: Currently update SRAM ECC flag for first node. + * This needs to be updated later when we can + * identify SRAM ECC error on other nodes also. + */ if (kfd) - atomic_inc(&kfd->sram_ecc_flag); + atomic_inc(&kfd->nodes[0]->sram_ecc_flag); } -void kfd_inc_compute_active(struct kfd_dev *kfd) +void kfd_inc_compute_active(struct kfd_node *node) { - if (atomic_inc_return(&kfd->compute_profile) == 1) - amdgpu_amdkfd_set_compute_idle(kfd->adev, false); + if (atomic_inc_return(&node->kfd->compute_profile) == 1) + amdgpu_amdkfd_set_compute_idle(node->adev, false); } -void kfd_dec_compute_active(struct kfd_dev *kfd) +void kfd_dec_compute_active(struct kfd_node *node) { - int count = atomic_dec_return(&kfd->compute_profile); + int count = atomic_dec_return(&node->kfd->compute_profile); if (count == 0) - amdgpu_amdkfd_set_compute_idle(kfd->adev, true); + amdgpu_amdkfd_set_compute_idle(node->adev, true); WARN_ONCE(count < 0, "Compute profile ref. count error"); } +static bool kfd_compute_active(struct kfd_node *node) +{ + if (atomic_read(&node->kfd->compute_profile)) + return true; + return false; +} + void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint64_t throttle_bitmask) { + /* + * TODO: For now, raise the throttling event only on first node. + * This will need to change after we are able to determine + * which node raised the throttling event. + */ if (kfd && kfd->init_complete) - kfd_smi_event_update_thermal_throttling(kfd, throttle_bitmask); + kfd_smi_event_update_thermal_throttling(kfd->nodes[0], + throttle_bitmask); } /* kfd_get_num_sdma_engines returns the number of PCIe optimized SDMA and @@ -1129,19 +1471,239 @@ void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint64_t throttle_bitmask) * When the device has more than two engines, we reserve two for PCIe to enable * full-duplex and the rest are used as XGMI. */ -unsigned int kfd_get_num_sdma_engines(struct kfd_dev *kdev) +unsigned int kfd_get_num_sdma_engines(struct kfd_node *node) { /* If XGMI is not supported, all SDMA engines are PCIe */ - if (!kdev->adev->gmc.xgmi.supported) - return kdev->adev->sdma.num_instances; + if (!node->adev->gmc.xgmi.supported) + return node->adev->sdma.num_instances/(int)node->kfd->num_nodes; - return min(kdev->adev->sdma.num_instances, 2); + return min(node->adev->sdma.num_instances/(int)node->kfd->num_nodes, 2); } -unsigned int kfd_get_num_xgmi_sdma_engines(struct kfd_dev *kdev) +unsigned int kfd_get_num_xgmi_sdma_engines(struct kfd_node *node) { /* After reserved for PCIe, the rest of engines are XGMI */ - return kdev->adev->sdma.num_instances - kfd_get_num_sdma_engines(kdev); + return node->adev->sdma.num_instances/(int)node->kfd->num_nodes - + kfd_get_num_sdma_engines(node); +} + +int kgd2kfd_check_and_lock_kfd(struct kfd_dev *kfd) +{ + struct kfd_process *p; + int r = 0, temp, idx; + + mutex_lock(&kfd_processes_mutex); + + /* kfd_processes_count is per kfd_dev, return -EBUSY without + * further check + */ + if (!!atomic_read(&kfd->kfd_processes_count)) { + pr_debug("process_wq_release not finished\n"); + r = -EBUSY; + goto out; + } + + if (hash_empty(kfd_processes_table) && !kfd_is_locked(kfd)) + goto out; + + /* fail under system reset/resume or kfd device is partition switching. */ + if (kfd_is_locked(kfd)) { + r = -EBUSY; + goto out; + } + + /* + * ensure all running processes are cgroup excluded from device before mode switch. + * i.e. no pdd was created on the process socket. + */ + idx = srcu_read_lock(&kfd_processes_srcu); + hash_for_each_rcu(kfd_processes_table, temp, p, kfd_processes) { + int i; + + for (i = 0; i < p->n_pdds; i++) { + if (p->pdds[i]->dev->kfd != kfd) + continue; + + r = -EBUSY; + goto proc_check_unlock; + } + } + +proc_check_unlock: + srcu_read_unlock(&kfd_processes_srcu, idx); +out: + if (!r) + ++kfd->kfd_dev_lock; + mutex_unlock(&kfd_processes_mutex); + + return r; +} + +void kgd2kfd_unlock_kfd(struct kfd_dev *kfd) +{ + mutex_lock(&kfd_processes_mutex); + --kfd->kfd_dev_lock; + mutex_unlock(&kfd_processes_mutex); +} + +int kgd2kfd_start_sched(struct kfd_dev *kfd, uint32_t node_id) +{ + struct kfd_node *node; + int ret; + + if (!kfd->init_complete) + return 0; + + if (node_id >= kfd->num_nodes) { + dev_warn(kfd->adev->dev, "Invalid node ID: %u exceeds %u\n", + node_id, kfd->num_nodes - 1); + return -EINVAL; + } + node = kfd->nodes[node_id]; + + ret = node->dqm->ops.unhalt(node->dqm); + if (ret) + dev_err(kfd_device, "Error in starting scheduler\n"); + + return ret; +} + +int kgd2kfd_start_sched_all_nodes(struct kfd_dev *kfd) +{ + struct kfd_node *node; + int i, r; + + if (!kfd->init_complete) + return 0; + + for (i = 0; i < kfd->num_nodes; i++) { + node = kfd->nodes[i]; + r = node->dqm->ops.unhalt(node->dqm); + if (r) { + dev_err(kfd_device, "Error in starting scheduler\n"); + return r; + } + } + return 0; +} + +int kgd2kfd_stop_sched(struct kfd_dev *kfd, uint32_t node_id) +{ + struct kfd_node *node; + + if (!kfd->init_complete) + return 0; + + if (node_id >= kfd->num_nodes) { + dev_warn(kfd->adev->dev, "Invalid node ID: %u exceeds %u\n", + node_id, kfd->num_nodes - 1); + return -EINVAL; + } + + node = kfd->nodes[node_id]; + return node->dqm->ops.halt(node->dqm); +} + +int kgd2kfd_stop_sched_all_nodes(struct kfd_dev *kfd) +{ + struct kfd_node *node; + int i, r; + + if (!kfd->init_complete) + return 0; + + for (i = 0; i < kfd->num_nodes; i++) { + node = kfd->nodes[i]; + r = node->dqm->ops.halt(node->dqm); + if (r) + return r; + } + return 0; +} + +bool kgd2kfd_compute_active(struct kfd_dev *kfd, uint32_t node_id) +{ + struct kfd_node *node; + + if (!kfd->init_complete) + return false; + + if (node_id >= kfd->num_nodes) { + dev_warn(kfd->adev->dev, "Invalid node ID: %u exceeds %u\n", + node_id, kfd->num_nodes - 1); + return false; + } + + node = kfd->nodes[node_id]; + + return kfd_compute_active(node); +} + +/** + * kgd2kfd_vmfault_fast_path() - KFD vm page fault interrupt handling fast path for gmc v9 + * @adev: amdgpu device + * @entry: vm fault interrupt vector + * @retry_fault: if this is retry fault + * + * retry fault - + * with CAM enabled, adev primary ring + * | gmc_v9_0_process_interrupt() + * adev soft_ring + * | gmc_v9_0_process_interrupt() worker failed to recover page fault + * KFD node ih_fifo + * | KFD interrupt_wq worker + * kfd_signal_vm_fault_event + * + * without CAM, adev primary ring1 + * | gmc_v9_0_process_interrupt worker failed to recvoer page fault + * KFD node ih_fifo + * | KFD interrupt_wq worker + * kfd_signal_vm_fault_event + * + * no-retry fault - + * adev primary ring + * | gmc_v9_0_process_interrupt() + * KFD node ih_fifo + * | KFD interrupt_wq worker + * kfd_signal_vm_fault_event + * + * fast path - After kfd_signal_vm_fault_event, gmc_v9_0_process_interrupt drop the page fault + * of same process, don't copy interrupt to KFD node ih_fifo. + * With gdb debugger enabled, need convert the retry fault to no-retry fault for + * debugger, cannot use the fast path. + * + * Return: + * true - use the fast path to handle this fault + * false - use normal path to handle it + */ +bool kgd2kfd_vmfault_fast_path(struct amdgpu_device *adev, struct amdgpu_iv_entry *entry, + bool retry_fault) +{ + struct kfd_process *p; + u32 cam_index; + + if (entry->ih == &adev->irq.ih_soft || entry->ih == &adev->irq.ih1) { + p = kfd_lookup_process_by_pasid(entry->pasid, NULL); + if (!p) + return true; + + if (p->gpu_page_fault && !p->debug_trap_enabled) { + if (retry_fault && adev->irq.retry_cam_enabled) { + cam_index = entry->src_data[2] & 0x3ff; + WDOORBELL32(adev->irq.retry_cam_doorbell_index, cam_index); + } + + kfd_unref_process(p); + return true; + } + + /* + * This is the first page fault, set flag and then signal user space + */ + p->gpu_page_fault = true; + kfd_unref_process(p); + } + return false; } #if defined(CONFIG_DEBUG_FS) @@ -1149,13 +1711,18 @@ unsigned int kfd_get_num_xgmi_sdma_engines(struct kfd_dev *kdev) /* This function will send a package to HIQ to hang the HWS * which will trigger a GPU reset and bring the HWS back to normal state */ -int kfd_debugfs_hang_hws(struct kfd_dev *dev) +int kfd_debugfs_hang_hws(struct kfd_node *dev) { if (dev->dqm->sched_policy != KFD_SCHED_POLICY_HWS) { pr_err("HWS is not enabled"); return -EINVAL; } + if (dev->kfd->shared_resources.enable_mes) { + dev_err(dev->adev->dev, "Inducing MES hang is not supported\n"); + return -EINVAL; + } + return dqm_debugfs_hang_hws(dev->dqm); } |