diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c | 446 |
1 files changed, 433 insertions, 13 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c index 3627e7ac161b..5137476ec18e 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c @@ -1,5 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0 OR MIT /* - * Copyright 2014 Advanced Micro Devices, Inc. + * Copyright 2014-2022 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -42,6 +43,20 @@ static inline struct process_queue_node *get_queue_by_qid( return NULL; } +static int assign_queue_slot_by_qid(struct process_queue_manager *pqm, + unsigned int qid) +{ + if (qid >= KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) + return -EINVAL; + + if (__test_and_set_bit(qid, pqm->queue_slot_bitmap)) { + pr_err("Cannot create new queue because requested qid(%u) is in use\n", qid); + return -ENOSPC; + } + + return 0; +} + static int find_available_queue_slot(struct process_queue_manager *pqm, unsigned int *qid) { @@ -118,7 +133,7 @@ int pqm_set_gws(struct process_queue_manager *pqm, unsigned int qid, return ret; pqn->q->gws = mem; - pdd->qpd.num_gws = gws ? amdgpu_amdkfd_get_num_gws(dev->kgd) : 0; + pdd->qpd.num_gws = gws ? dev->adev->gds.gws_size : 0; return pqn->q->device->dqm->ops.update_queue(pqn->q->device->dqm, pqn->q, NULL); @@ -135,9 +150,8 @@ void kfd_process_dequeue_from_all_devices(struct kfd_process *p) int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p) { INIT_LIST_HEAD(&pqm->queues); - pqm->queue_slot_bitmap = - kzalloc(DIV_ROUND_UP(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS, - BITS_PER_BYTE), GFP_KERNEL); + pqm->queue_slot_bitmap = bitmap_zalloc(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS, + GFP_KERNEL); if (!pqm->queue_slot_bitmap) return -ENOMEM; pqm->process = p; @@ -159,14 +173,15 @@ void pqm_uninit(struct process_queue_manager *pqm) kfree(pqn); } - kfree(pqm->queue_slot_bitmap); + bitmap_free(pqm->queue_slot_bitmap); pqm->queue_slot_bitmap = NULL; } static int init_user_queue(struct process_queue_manager *pqm, struct kfd_dev *dev, struct queue **q, struct queue_properties *q_properties, - struct file *f, unsigned int qid) + struct file *f, struct amdgpu_bo *wptr_bo, + unsigned int qid) { int retval; @@ -184,8 +199,27 @@ static int init_user_queue(struct process_queue_manager *pqm, (*q)->device = dev; (*q)->process = pqm->process; + if (dev->shared_resources.enable_mes) { + retval = amdgpu_amdkfd_alloc_gtt_mem(dev->adev, + AMDGPU_MES_GANG_CTX_SIZE, + &(*q)->gang_ctx_bo, + &(*q)->gang_ctx_gpu_addr, + &(*q)->gang_ctx_cpu_ptr, + false); + if (retval) { + pr_err("failed to allocate gang context bo\n"); + goto cleanup; + } + memset((*q)->gang_ctx_cpu_ptr, 0, AMDGPU_MES_GANG_CTX_SIZE); + (*q)->wptr_bo = wptr_bo; + } + pr_debug("PQM After init queue"); + return 0; +cleanup: + if (dev->shared_resources.enable_mes) + uninit_queue(*q); return retval; } @@ -194,6 +228,10 @@ int pqm_create_queue(struct process_queue_manager *pqm, struct file *f, struct queue_properties *properties, unsigned int *qid, + struct amdgpu_bo *wptr_bo, + const struct kfd_criu_queue_priv_data *q_data, + const void *restore_mqd, + const void *restore_ctl_stack, uint32_t *p_doorbell_offset_in_process) { int retval; @@ -220,12 +258,17 @@ int pqm_create_queue(struct process_queue_manager *pqm, * Hence we also check the type as well */ if ((pdd->qpd.is_debug) || (type == KFD_QUEUE_TYPE_DIQ)) - max_queues = dev->device_info->max_no_of_hqd/2; + max_queues = dev->device_info.max_no_of_hqd/2; if (pdd->qpd.queue_count >= max_queues) return -ENOSPC; - retval = find_available_queue_slot(pqm, qid); + if (q_data) { + retval = assign_queue_slot_by_qid(pqm, q_data->q_id); + *qid = q_data->q_id; + } else + retval = find_available_queue_slot(pqm, qid); + if (retval != 0) return retval; @@ -248,12 +291,13 @@ int pqm_create_queue(struct process_queue_manager *pqm, * allocate_sdma_queue() in create_queue() has the * corresponding check logic. */ - retval = init_user_queue(pqm, dev, &q, properties, f, *qid); + retval = init_user_queue(pqm, dev, &q, properties, f, wptr_bo, *qid); if (retval != 0) goto err_create_queue; pqn->q = q; pqn->kq = NULL; - retval = dev->dqm->ops.create_queue(dev->dqm, q, &pdd->qpd); + retval = dev->dqm->ops.create_queue(dev->dqm, q, &pdd->qpd, q_data, + restore_mqd, restore_ctl_stack); print_queue(q); break; @@ -268,12 +312,13 @@ int pqm_create_queue(struct process_queue_manager *pqm, goto err_create_queue; } - retval = init_user_queue(pqm, dev, &q, properties, f, *qid); + retval = init_user_queue(pqm, dev, &q, properties, f, wptr_bo, *qid); if (retval != 0) goto err_create_queue; pqn->q = q; pqn->kq = NULL; - retval = dev->dqm->ops.create_queue(dev->dqm, q, &pdd->qpd); + retval = dev->dqm->ops.create_queue(dev->dqm, q, &pdd->qpd, q_data, + restore_mqd, restore_ctl_stack); print_queue(q); break; case KFD_QUEUE_TYPE_DIQ: @@ -394,6 +439,13 @@ int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid) pdd->qpd.num_gws = 0; } + if (dev->shared_resources.enable_mes) { + amdgpu_amdkfd_free_gtt_mem(dev->adev, + pqn->q->gang_ctx_bo); + if (pqn->q->wptr_bo) + amdgpu_amdkfd_free_gtt_mem(dev->adev, pqn->q->wptr_bo); + + } uninit_queue(pqn->q); } @@ -446,6 +498,21 @@ int pqm_update_mqd(struct process_queue_manager *pqm, return -EFAULT; } + /* ASICs that have WGPs must enforce pairwise enabled mask checks. */ + if (minfo && minfo->update_flag == UPDATE_FLAG_CU_MASK && minfo->cu_mask.ptr && + KFD_GC_VERSION(pqn->q->device) >= IP_VERSION(10, 0, 0)) { + int i; + + for (i = 0; i < minfo->cu_mask.count; i += 2) { + uint32_t cu_pair = (minfo->cu_mask.ptr[i / 32] >> (i % 32)) & 0x3; + + if (cu_pair && cu_pair != 0x3) { + pr_debug("CUs must be adjacent pairwise enabled.\n"); + return -EINVAL; + } + } + } + retval = pqn->q->device->dqm->ops.update_queue(pqn->q->device->dqm, pqn->q, minfo); if (retval != 0) @@ -498,6 +565,359 @@ int pqm_get_wave_state(struct process_queue_manager *pqm, save_area_used_size); } +static int get_queue_data_sizes(struct kfd_process_device *pdd, + struct queue *q, + uint32_t *mqd_size, + uint32_t *ctl_stack_size) +{ + int ret; + + ret = pqm_get_queue_checkpoint_info(&pdd->process->pqm, + q->properties.queue_id, + mqd_size, + ctl_stack_size); + if (ret) + pr_err("Failed to get queue dump info (%d)\n", ret); + + return ret; +} + +int kfd_process_get_queue_info(struct kfd_process *p, + uint32_t *num_queues, + uint64_t *priv_data_sizes) +{ + uint32_t extra_data_sizes = 0; + struct queue *q; + int i; + int ret; + + *num_queues = 0; + + /* Run over all PDDs of the process */ + for (i = 0; i < p->n_pdds; i++) { + struct kfd_process_device *pdd = p->pdds[i]; + + list_for_each_entry(q, &pdd->qpd.queues_list, list) { + if (q->properties.type == KFD_QUEUE_TYPE_COMPUTE || + q->properties.type == KFD_QUEUE_TYPE_SDMA || + q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI) { + uint32_t mqd_size, ctl_stack_size; + + *num_queues = *num_queues + 1; + + ret = get_queue_data_sizes(pdd, q, &mqd_size, &ctl_stack_size); + if (ret) + return ret; + + extra_data_sizes += mqd_size + ctl_stack_size; + } else { + pr_err("Unsupported queue type (%d)\n", q->properties.type); + return -EOPNOTSUPP; + } + } + } + *priv_data_sizes = extra_data_sizes + + (*num_queues * sizeof(struct kfd_criu_queue_priv_data)); + + return 0; +} + +static int pqm_checkpoint_mqd(struct process_queue_manager *pqm, + unsigned int qid, + void *mqd, + void *ctl_stack) +{ + struct process_queue_node *pqn; + + pqn = get_queue_by_qid(pqm, qid); + if (!pqn) { + pr_debug("amdkfd: No queue %d exists for operation\n", qid); + return -EFAULT; + } + + if (!pqn->q->device->dqm->ops.checkpoint_mqd) { + pr_err("amdkfd: queue dumping not supported on this device\n"); + return -EOPNOTSUPP; + } + + return pqn->q->device->dqm->ops.checkpoint_mqd(pqn->q->device->dqm, + pqn->q, mqd, ctl_stack); +} + +static int criu_checkpoint_queue(struct kfd_process_device *pdd, + struct queue *q, + struct kfd_criu_queue_priv_data *q_data) +{ + uint8_t *mqd, *ctl_stack; + int ret; + + mqd = (void *)(q_data + 1); + ctl_stack = mqd + q_data->mqd_size; + + q_data->gpu_id = pdd->user_gpu_id; + q_data->type = q->properties.type; + q_data->format = q->properties.format; + q_data->q_id = q->properties.queue_id; + q_data->q_address = q->properties.queue_address; + q_data->q_size = q->properties.queue_size; + q_data->priority = q->properties.priority; + q_data->q_percent = q->properties.queue_percent; + q_data->read_ptr_addr = (uint64_t)q->properties.read_ptr; + q_data->write_ptr_addr = (uint64_t)q->properties.write_ptr; + q_data->doorbell_id = q->doorbell_id; + + q_data->sdma_id = q->sdma_id; + + q_data->eop_ring_buffer_address = + q->properties.eop_ring_buffer_address; + + q_data->eop_ring_buffer_size = q->properties.eop_ring_buffer_size; + + q_data->ctx_save_restore_area_address = + q->properties.ctx_save_restore_area_address; + + q_data->ctx_save_restore_area_size = + q->properties.ctx_save_restore_area_size; + + q_data->gws = !!q->gws; + + ret = pqm_checkpoint_mqd(&pdd->process->pqm, q->properties.queue_id, mqd, ctl_stack); + if (ret) { + pr_err("Failed checkpoint queue_mqd (%d)\n", ret); + return ret; + } + + pr_debug("Dumping Queue: gpu_id:%x queue_id:%u\n", q_data->gpu_id, q_data->q_id); + return ret; +} + +static int criu_checkpoint_queues_device(struct kfd_process_device *pdd, + uint8_t __user *user_priv, + unsigned int *q_index, + uint64_t *queues_priv_data_offset) +{ + unsigned int q_private_data_size = 0; + uint8_t *q_private_data = NULL; /* Local buffer to store individual queue private data */ + struct queue *q; + int ret = 0; + + list_for_each_entry(q, &pdd->qpd.queues_list, list) { + struct kfd_criu_queue_priv_data *q_data; + uint64_t q_data_size; + uint32_t mqd_size; + uint32_t ctl_stack_size; + + if (q->properties.type != KFD_QUEUE_TYPE_COMPUTE && + q->properties.type != KFD_QUEUE_TYPE_SDMA && + q->properties.type != KFD_QUEUE_TYPE_SDMA_XGMI) { + + pr_err("Unsupported queue type (%d)\n", q->properties.type); + ret = -EOPNOTSUPP; + break; + } + + ret = get_queue_data_sizes(pdd, q, &mqd_size, &ctl_stack_size); + if (ret) + break; + + q_data_size = sizeof(*q_data) + mqd_size + ctl_stack_size; + + /* Increase local buffer space if needed */ + if (q_private_data_size < q_data_size) { + kfree(q_private_data); + + q_private_data = kzalloc(q_data_size, GFP_KERNEL); + if (!q_private_data) { + ret = -ENOMEM; + break; + } + q_private_data_size = q_data_size; + } + + q_data = (struct kfd_criu_queue_priv_data *)q_private_data; + + /* data stored in this order: priv_data, mqd, ctl_stack */ + q_data->mqd_size = mqd_size; + q_data->ctl_stack_size = ctl_stack_size; + + ret = criu_checkpoint_queue(pdd, q, q_data); + if (ret) + break; + + q_data->object_type = KFD_CRIU_OBJECT_TYPE_QUEUE; + + ret = copy_to_user(user_priv + *queues_priv_data_offset, + q_data, q_data_size); + if (ret) { + ret = -EFAULT; + break; + } + *queues_priv_data_offset += q_data_size; + *q_index = *q_index + 1; + } + + kfree(q_private_data); + + return ret; +} + +int kfd_criu_checkpoint_queues(struct kfd_process *p, + uint8_t __user *user_priv_data, + uint64_t *priv_data_offset) +{ + int ret = 0, pdd_index, q_index = 0; + + for (pdd_index = 0; pdd_index < p->n_pdds; pdd_index++) { + struct kfd_process_device *pdd = p->pdds[pdd_index]; + + /* + * criu_checkpoint_queues_device will copy data to user and update q_index and + * queues_priv_data_offset + */ + ret = criu_checkpoint_queues_device(pdd, user_priv_data, &q_index, + priv_data_offset); + + if (ret) + break; + } + + return ret; +} + +static void set_queue_properties_from_criu(struct queue_properties *qp, + struct kfd_criu_queue_priv_data *q_data) +{ + qp->is_interop = false; + qp->queue_percent = q_data->q_percent; + qp->priority = q_data->priority; + qp->queue_address = q_data->q_address; + qp->queue_size = q_data->q_size; + qp->read_ptr = (uint32_t *) q_data->read_ptr_addr; + qp->write_ptr = (uint32_t *) q_data->write_ptr_addr; + qp->eop_ring_buffer_address = q_data->eop_ring_buffer_address; + qp->eop_ring_buffer_size = q_data->eop_ring_buffer_size; + qp->ctx_save_restore_area_address = q_data->ctx_save_restore_area_address; + qp->ctx_save_restore_area_size = q_data->ctx_save_restore_area_size; + qp->ctl_stack_size = q_data->ctl_stack_size; + qp->type = q_data->type; + qp->format = q_data->format; +} + +int kfd_criu_restore_queue(struct kfd_process *p, + uint8_t __user *user_priv_ptr, + uint64_t *priv_data_offset, + uint64_t max_priv_data_size) +{ + uint8_t *mqd, *ctl_stack, *q_extra_data = NULL; + struct kfd_criu_queue_priv_data *q_data; + struct kfd_process_device *pdd; + uint64_t q_extra_data_size; + struct queue_properties qp; + unsigned int queue_id; + int ret = 0; + + if (*priv_data_offset + sizeof(*q_data) > max_priv_data_size) + return -EINVAL; + + q_data = kmalloc(sizeof(*q_data), GFP_KERNEL); + if (!q_data) + return -ENOMEM; + + ret = copy_from_user(q_data, user_priv_ptr + *priv_data_offset, sizeof(*q_data)); + if (ret) { + ret = -EFAULT; + goto exit; + } + + *priv_data_offset += sizeof(*q_data); + q_extra_data_size = (uint64_t)q_data->ctl_stack_size + q_data->mqd_size; + + if (*priv_data_offset + q_extra_data_size > max_priv_data_size) { + ret = -EINVAL; + goto exit; + } + + q_extra_data = kmalloc(q_extra_data_size, GFP_KERNEL); + if (!q_extra_data) { + ret = -ENOMEM; + goto exit; + } + + ret = copy_from_user(q_extra_data, user_priv_ptr + *priv_data_offset, q_extra_data_size); + if (ret) { + ret = -EFAULT; + goto exit; + } + + *priv_data_offset += q_extra_data_size; + + pdd = kfd_process_device_data_by_id(p, q_data->gpu_id); + if (!pdd) { + pr_err("Failed to get pdd\n"); + ret = -EINVAL; + goto exit; + } + + if (!pdd->doorbell_index && + kfd_alloc_process_doorbells(pdd->dev, &pdd->doorbell_index) < 0) { + ret = -ENOMEM; + goto exit; + } + + /* data stored in this order: mqd, ctl_stack */ + mqd = q_extra_data; + ctl_stack = mqd + q_data->mqd_size; + + memset(&qp, 0, sizeof(qp)); + set_queue_properties_from_criu(&qp, q_data); + + print_queue_properties(&qp); + + ret = pqm_create_queue(&p->pqm, pdd->dev, NULL, &qp, &queue_id, NULL, q_data, mqd, ctl_stack, + NULL); + if (ret) { + pr_err("Failed to create new queue err:%d\n", ret); + goto exit; + } + + if (q_data->gws) + ret = pqm_set_gws(&p->pqm, q_data->q_id, pdd->dev->gws); + +exit: + if (ret) + pr_err("Failed to restore queue (%d)\n", ret); + else + pr_debug("Queue id %d was restored successfully\n", queue_id); + + kfree(q_data); + + return ret; +} + +int pqm_get_queue_checkpoint_info(struct process_queue_manager *pqm, + unsigned int qid, + uint32_t *mqd_size, + uint32_t *ctl_stack_size) +{ + struct process_queue_node *pqn; + + pqn = get_queue_by_qid(pqm, qid); + if (!pqn) { + pr_debug("amdkfd: No queue %d exists for operation\n", qid); + return -EFAULT; + } + + if (!pqn->q->device->dqm->ops.get_queue_checkpoint_info) { + pr_err("amdkfd: queue dumping not supported on this device\n"); + return -EOPNOTSUPP; + } + + pqn->q->device->dqm->ops.get_queue_checkpoint_info(pqn->q->device->dqm, + pqn->q, mqd_size, + ctl_stack_size); + return 0; +} + #if defined(CONFIG_DEBUG_FS) int pqm_debugfs_mqds(struct seq_file *m, void *data) |