diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device.c | 20 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 32 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 4 |
4 files changed, 37 insertions, 22 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index ce9f4e562bac..3fea47e37c17 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -1516,6 +1516,26 @@ void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint64_t throttle_bitmask) kfd_smi_event_update_thermal_throttling(kfd, throttle_bitmask); } +/* kfd_get_num_sdma_engines returns the number of PCIe optimized SDMA and + * kfd_get_num_xgmi_sdma_engines returns the number of XGMI SDMA. + * 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) +{ + /* If XGMI is not supported, all SDMA engines are PCIe */ + if (!kdev->adev->gmc.xgmi.supported) + return kdev->adev->sdma.num_instances; + + return min(kdev->adev->sdma.num_instances, 2); +} + +unsigned int kfd_get_num_xgmi_sdma_engines(struct kfd_dev *kdev) +{ + /* After reserved for PCIe, the rest of engines are XGMI */ + return kdev->adev->sdma.num_instances - kfd_get_num_sdma_engines(kdev); +} + #if defined(CONFIG_DEBUG_FS) /* This function will send a package to HIQ to hang the HWS diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c index 62fe28244a80..2af2b3268171 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -99,31 +99,22 @@ unsigned int get_pipes_per_mec(struct device_queue_manager *dqm) return dqm->dev->shared_resources.num_pipe_per_mec; } -static unsigned int get_num_sdma_engines(struct device_queue_manager *dqm) -{ - return dqm->dev->device_info->num_sdma_engines; -} - -static unsigned int get_num_xgmi_sdma_engines(struct device_queue_manager *dqm) -{ - return dqm->dev->device_info->num_xgmi_sdma_engines; -} - static unsigned int get_num_all_sdma_engines(struct device_queue_manager *dqm) { - return get_num_sdma_engines(dqm) + get_num_xgmi_sdma_engines(dqm); + return kfd_get_num_sdma_engines(dqm->dev) + + kfd_get_num_xgmi_sdma_engines(dqm->dev); } unsigned int get_num_sdma_queues(struct device_queue_manager *dqm) { - return dqm->dev->device_info->num_sdma_engines - * dqm->dev->device_info->num_sdma_queues_per_engine; + return kfd_get_num_sdma_engines(dqm->dev) * + dqm->dev->device_info->num_sdma_queues_per_engine; } unsigned int get_num_xgmi_sdma_queues(struct device_queue_manager *dqm) { - return dqm->dev->device_info->num_xgmi_sdma_engines - * dqm->dev->device_info->num_sdma_queues_per_engine; + return kfd_get_num_xgmi_sdma_engines(dqm->dev) * + dqm->dev->device_info->num_sdma_queues_per_engine; } void program_sh_mem_settings(struct device_queue_manager *dqm, @@ -1054,9 +1045,9 @@ static int allocate_sdma_queue(struct device_queue_manager *dqm, dqm->sdma_bitmap &= ~(1ULL << bit); q->sdma_id = bit; q->properties.sdma_engine_id = q->sdma_id % - get_num_sdma_engines(dqm); + kfd_get_num_sdma_engines(dqm->dev); q->properties.sdma_queue_id = q->sdma_id / - get_num_sdma_engines(dqm); + kfd_get_num_sdma_engines(dqm->dev); } else if (q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI) { if (dqm->xgmi_sdma_bitmap == 0) { pr_err("No more XGMI SDMA queue to allocate\n"); @@ -1071,10 +1062,11 @@ static int allocate_sdma_queue(struct device_queue_manager *dqm, * assumes the first N engines are always * PCIe-optimized ones */ - q->properties.sdma_engine_id = get_num_sdma_engines(dqm) + - q->sdma_id % get_num_xgmi_sdma_engines(dqm); + q->properties.sdma_engine_id = + kfd_get_num_sdma_engines(dqm->dev) + + q->sdma_id % kfd_get_num_xgmi_sdma_engines(dqm->dev); q->properties.sdma_queue_id = q->sdma_id / - get_num_xgmi_sdma_engines(dqm); + kfd_get_num_xgmi_sdma_engines(dqm->dev); } pr_debug("SDMA engine id: %d\n", q->properties.sdma_engine_id); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index 1d3f012bcd2a..1054fedd7b3c 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -213,6 +213,9 @@ struct kfd_device_info { unsigned int num_sdma_queues_per_engine; }; +unsigned int kfd_get_num_sdma_engines(struct kfd_dev *kdev); +unsigned int kfd_get_num_xgmi_sdma_engines(struct kfd_dev *kdev); + struct kfd_mem_obj { uint32_t range_start; uint32_t range_end; diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c index a3f590e17973..2d44b26b6657 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c @@ -1392,9 +1392,9 @@ int kfd_topology_add_device(struct kfd_dev *gpu) gpu->shared_resources.drm_render_minor; dev->node_props.hive_id = gpu->hive_id; - dev->node_props.num_sdma_engines = gpu->device_info->num_sdma_engines; + dev->node_props.num_sdma_engines = kfd_get_num_sdma_engines(gpu); dev->node_props.num_sdma_xgmi_engines = - gpu->device_info->num_xgmi_sdma_engines; + kfd_get_num_xgmi_sdma_engines(gpu); dev->node_props.num_sdma_queues_per_engine = gpu->device_info->num_sdma_queues_per_engine; dev->node_props.num_gws = (dev->gpu->gws && |