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![Yong Zhao](/assets/img/avatar_default.png)
create_cp_queue() could also work with SDMA queues, so we should rename it. It only initialize the data values rather than creating queues. Signed-off-by: Yong Zhao <Yong.Zhao@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
564 lines
14 KiB
C
564 lines
14 KiB
C
/*
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* Copyright 2014 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <linux/slab.h>
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#include <linux/list.h>
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#include "kfd_device_queue_manager.h"
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#include "kfd_priv.h"
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#include "kfd_kernel_queue.h"
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#include "amdgpu_amdkfd.h"
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static inline struct process_queue_node *get_queue_by_qid(
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struct process_queue_manager *pqm, unsigned int qid)
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{
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struct process_queue_node *pqn;
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list_for_each_entry(pqn, &pqm->queues, process_queue_list) {
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if ((pqn->q && pqn->q->properties.queue_id == qid) ||
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(pqn->kq && pqn->kq->queue->properties.queue_id == qid))
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return pqn;
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}
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return NULL;
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}
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static int find_available_queue_slot(struct process_queue_manager *pqm,
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unsigned int *qid)
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{
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unsigned long found;
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found = find_first_zero_bit(pqm->queue_slot_bitmap,
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KFD_MAX_NUM_OF_QUEUES_PER_PROCESS);
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pr_debug("The new slot id %lu\n", found);
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if (found >= KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) {
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pr_info("Cannot open more queues for process with pasid 0x%x\n",
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pqm->process->pasid);
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return -ENOMEM;
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}
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set_bit(found, pqm->queue_slot_bitmap);
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*qid = found;
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return 0;
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}
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void kfd_process_dequeue_from_device(struct kfd_process_device *pdd)
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{
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struct kfd_dev *dev = pdd->dev;
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if (pdd->already_dequeued)
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return;
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dev->dqm->ops.process_termination(dev->dqm, &pdd->qpd);
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pdd->already_dequeued = true;
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}
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int pqm_set_gws(struct process_queue_manager *pqm, unsigned int qid,
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void *gws)
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{
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struct kfd_dev *dev = NULL;
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struct process_queue_node *pqn;
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struct kfd_process_device *pdd;
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struct kgd_mem *mem = NULL;
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int ret;
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pqn = get_queue_by_qid(pqm, qid);
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if (!pqn) {
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pr_err("Queue id does not match any known queue\n");
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return -EINVAL;
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}
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if (pqn->q)
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dev = pqn->q->device;
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if (WARN_ON(!dev))
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return -ENODEV;
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pdd = kfd_get_process_device_data(dev, pqm->process);
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if (!pdd) {
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pr_err("Process device data doesn't exist\n");
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return -EINVAL;
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}
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/* Only allow one queue per process can have GWS assigned */
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if (gws && pdd->qpd.num_gws)
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return -EBUSY;
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if (!gws && pdd->qpd.num_gws == 0)
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return -EINVAL;
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if (gws)
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ret = amdgpu_amdkfd_add_gws_to_process(pdd->process->kgd_process_info,
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gws, &mem);
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else
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ret = amdgpu_amdkfd_remove_gws_from_process(pdd->process->kgd_process_info,
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pqn->q->gws);
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if (unlikely(ret))
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return ret;
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pqn->q->gws = mem;
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pdd->qpd.num_gws = gws ? amdgpu_amdkfd_get_num_gws(dev->kgd) : 0;
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return pqn->q->device->dqm->ops.update_queue(pqn->q->device->dqm,
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pqn->q);
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}
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void kfd_process_dequeue_from_all_devices(struct kfd_process *p)
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{
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struct kfd_process_device *pdd;
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list_for_each_entry(pdd, &p->per_device_data, per_device_list)
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kfd_process_dequeue_from_device(pdd);
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}
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int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p)
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{
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INIT_LIST_HEAD(&pqm->queues);
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pqm->queue_slot_bitmap =
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kzalloc(DIV_ROUND_UP(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS,
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BITS_PER_BYTE), GFP_KERNEL);
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if (!pqm->queue_slot_bitmap)
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return -ENOMEM;
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pqm->process = p;
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return 0;
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}
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void pqm_uninit(struct process_queue_manager *pqm)
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{
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struct process_queue_node *pqn, *next;
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list_for_each_entry_safe(pqn, next, &pqm->queues, process_queue_list) {
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if (pqn->q && pqn->q->gws)
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amdgpu_amdkfd_remove_gws_from_process(pqm->process->kgd_process_info,
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pqn->q->gws);
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uninit_queue(pqn->q);
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list_del(&pqn->process_queue_list);
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kfree(pqn);
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}
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kfree(pqm->queue_slot_bitmap);
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pqm->queue_slot_bitmap = NULL;
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}
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static int init_user_queue(struct process_queue_manager *pqm,
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struct kfd_dev *dev, struct queue **q,
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struct queue_properties *q_properties,
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struct file *f, unsigned int qid)
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{
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int retval;
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/* Doorbell initialized in user space*/
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q_properties->doorbell_ptr = NULL;
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/* let DQM handle it*/
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q_properties->vmid = 0;
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q_properties->queue_id = qid;
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retval = init_queue(q, q_properties);
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if (retval != 0)
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return retval;
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(*q)->device = dev;
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(*q)->process = pqm->process;
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pr_debug("PQM After init queue");
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return retval;
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}
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int pqm_create_queue(struct process_queue_manager *pqm,
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struct kfd_dev *dev,
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struct file *f,
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struct queue_properties *properties,
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unsigned int *qid,
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uint32_t *p_doorbell_offset_in_process)
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{
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int retval;
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struct kfd_process_device *pdd;
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struct queue *q;
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struct process_queue_node *pqn;
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struct kernel_queue *kq;
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enum kfd_queue_type type = properties->type;
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unsigned int max_queues = 127; /* HWS limit */
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q = NULL;
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kq = NULL;
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pdd = kfd_get_process_device_data(dev, pqm->process);
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if (!pdd) {
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pr_err("Process device data doesn't exist\n");
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return -1;
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}
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/*
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* for debug process, verify that it is within the static queues limit
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* currently limit is set to half of the total avail HQD slots
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* If we are just about to create DIQ, the is_debug flag is not set yet
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* Hence we also check the type as well
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*/
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if ((pdd->qpd.is_debug) || (type == KFD_QUEUE_TYPE_DIQ))
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max_queues = dev->device_info->max_no_of_hqd/2;
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if (pdd->qpd.queue_count >= max_queues)
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return -ENOSPC;
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retval = find_available_queue_slot(pqm, qid);
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if (retval != 0)
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return retval;
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if (list_empty(&pdd->qpd.queues_list) &&
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list_empty(&pdd->qpd.priv_queue_list))
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dev->dqm->ops.register_process(dev->dqm, &pdd->qpd);
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pqn = kzalloc(sizeof(*pqn), GFP_KERNEL);
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if (!pqn) {
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retval = -ENOMEM;
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goto err_allocate_pqn;
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}
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switch (type) {
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case KFD_QUEUE_TYPE_SDMA:
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case KFD_QUEUE_TYPE_SDMA_XGMI:
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if ((type == KFD_QUEUE_TYPE_SDMA && dev->dqm->sdma_queue_count
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>= get_num_sdma_queues(dev->dqm)) ||
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(type == KFD_QUEUE_TYPE_SDMA_XGMI &&
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dev->dqm->xgmi_sdma_queue_count
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>= get_num_xgmi_sdma_queues(dev->dqm))) {
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pr_debug("Over-subscription is not allowed for SDMA.\n");
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retval = -EPERM;
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goto err_create_queue;
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}
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retval = init_user_queue(pqm, dev, &q, properties, f, *qid);
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if (retval != 0)
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goto err_create_queue;
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pqn->q = q;
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pqn->kq = NULL;
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retval = dev->dqm->ops.create_queue(dev->dqm, q, &pdd->qpd);
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pr_debug("DQM returned %d for create_queue\n", retval);
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print_queue(q);
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break;
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case KFD_QUEUE_TYPE_COMPUTE:
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/* check if there is over subscription */
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if ((dev->dqm->sched_policy ==
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KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION) &&
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((dev->dqm->processes_count >= dev->vm_info.vmid_num_kfd) ||
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(dev->dqm->queue_count >= get_queues_num(dev->dqm)))) {
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pr_debug("Over-subscription is not allowed when amdkfd.sched_policy == 1\n");
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retval = -EPERM;
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goto err_create_queue;
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}
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retval = init_user_queue(pqm, dev, &q, properties, f, *qid);
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if (retval != 0)
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goto err_create_queue;
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pqn->q = q;
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pqn->kq = NULL;
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retval = dev->dqm->ops.create_queue(dev->dqm, q, &pdd->qpd);
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pr_debug("DQM returned %d for create_queue\n", retval);
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print_queue(q);
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break;
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case KFD_QUEUE_TYPE_DIQ:
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kq = kernel_queue_init(dev, KFD_QUEUE_TYPE_DIQ);
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if (!kq) {
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retval = -ENOMEM;
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goto err_create_queue;
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}
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kq->queue->properties.queue_id = *qid;
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pqn->kq = kq;
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pqn->q = NULL;
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retval = dev->dqm->ops.create_kernel_queue(dev->dqm,
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kq, &pdd->qpd);
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break;
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default:
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WARN(1, "Invalid queue type %d", type);
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retval = -EINVAL;
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}
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if (retval != 0) {
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pr_err("Pasid 0x%x DQM create queue %d failed. ret %d\n",
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pqm->process->pasid, type, retval);
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goto err_create_queue;
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}
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if (q && p_doorbell_offset_in_process)
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/* Return the doorbell offset within the doorbell page
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* to the caller so it can be passed up to user mode
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* (in bytes).
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* There are always 1024 doorbells per process, so in case
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* of 8-byte doorbells, there are two doorbell pages per
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* process.
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*/
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*p_doorbell_offset_in_process =
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(q->properties.doorbell_off * sizeof(uint32_t)) &
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(kfd_doorbell_process_slice(dev) - 1);
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pr_debug("PQM After DQM create queue\n");
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list_add(&pqn->process_queue_list, &pqm->queues);
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if (q) {
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pr_debug("PQM done creating queue\n");
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print_queue_properties(&q->properties);
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}
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return retval;
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err_create_queue:
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kfree(pqn);
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err_allocate_pqn:
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/* check if queues list is empty unregister process from device */
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clear_bit(*qid, pqm->queue_slot_bitmap);
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if (list_empty(&pdd->qpd.queues_list) &&
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list_empty(&pdd->qpd.priv_queue_list))
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dev->dqm->ops.unregister_process(dev->dqm, &pdd->qpd);
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return retval;
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}
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int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid)
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{
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struct process_queue_node *pqn;
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struct kfd_process_device *pdd;
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struct device_queue_manager *dqm;
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struct kfd_dev *dev;
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int retval;
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dqm = NULL;
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retval = 0;
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pqn = get_queue_by_qid(pqm, qid);
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if (!pqn) {
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pr_err("Queue id does not match any known queue\n");
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return -EINVAL;
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}
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dev = NULL;
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if (pqn->kq)
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dev = pqn->kq->dev;
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if (pqn->q)
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dev = pqn->q->device;
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if (WARN_ON(!dev))
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return -ENODEV;
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pdd = kfd_get_process_device_data(dev, pqm->process);
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if (!pdd) {
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pr_err("Process device data doesn't exist\n");
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return -1;
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}
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if (pqn->kq) {
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/* destroy kernel queue (DIQ) */
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dqm = pqn->kq->dev->dqm;
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dqm->ops.destroy_kernel_queue(dqm, pqn->kq, &pdd->qpd);
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kernel_queue_uninit(pqn->kq);
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}
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if (pqn->q) {
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dqm = pqn->q->device->dqm;
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retval = dqm->ops.destroy_queue(dqm, &pdd->qpd, pqn->q);
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if (retval) {
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pr_err("Pasid 0x%x destroy queue %d failed, ret %d\n",
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pqm->process->pasid,
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pqn->q->properties.queue_id, retval);
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if (retval != -ETIME)
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goto err_destroy_queue;
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}
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if (pqn->q->gws) {
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amdgpu_amdkfd_remove_gws_from_process(pqm->process->kgd_process_info,
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pqn->q->gws);
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pdd->qpd.num_gws = 0;
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}
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kfree(pqn->q->properties.cu_mask);
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pqn->q->properties.cu_mask = NULL;
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uninit_queue(pqn->q);
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}
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list_del(&pqn->process_queue_list);
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kfree(pqn);
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clear_bit(qid, pqm->queue_slot_bitmap);
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if (list_empty(&pdd->qpd.queues_list) &&
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list_empty(&pdd->qpd.priv_queue_list))
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dqm->ops.unregister_process(dqm, &pdd->qpd);
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err_destroy_queue:
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return retval;
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}
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int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid,
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struct queue_properties *p)
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{
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int retval;
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struct process_queue_node *pqn;
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pqn = get_queue_by_qid(pqm, qid);
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if (!pqn) {
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pr_debug("No queue %d exists for update operation\n", qid);
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return -EFAULT;
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}
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pqn->q->properties.queue_address = p->queue_address;
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pqn->q->properties.queue_size = p->queue_size;
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pqn->q->properties.queue_percent = p->queue_percent;
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pqn->q->properties.priority = p->priority;
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retval = pqn->q->device->dqm->ops.update_queue(pqn->q->device->dqm,
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pqn->q);
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if (retval != 0)
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return retval;
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return 0;
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}
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int pqm_set_cu_mask(struct process_queue_manager *pqm, unsigned int qid,
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struct queue_properties *p)
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{
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int retval;
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struct process_queue_node *pqn;
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pqn = get_queue_by_qid(pqm, qid);
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if (!pqn) {
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pr_debug("No queue %d exists for update operation\n", qid);
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return -EFAULT;
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}
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/* Free the old CU mask memory if it is already allocated, then
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* allocate memory for the new CU mask.
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*/
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kfree(pqn->q->properties.cu_mask);
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pqn->q->properties.cu_mask_count = p->cu_mask_count;
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pqn->q->properties.cu_mask = p->cu_mask;
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retval = pqn->q->device->dqm->ops.update_queue(pqn->q->device->dqm,
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pqn->q);
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if (retval != 0)
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return retval;
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return 0;
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}
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struct kernel_queue *pqm_get_kernel_queue(
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struct process_queue_manager *pqm,
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unsigned int qid)
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{
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struct process_queue_node *pqn;
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pqn = get_queue_by_qid(pqm, qid);
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if (pqn && pqn->kq)
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return pqn->kq;
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return NULL;
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}
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int pqm_get_wave_state(struct process_queue_manager *pqm,
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unsigned int qid,
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void __user *ctl_stack,
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u32 *ctl_stack_used_size,
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u32 *save_area_used_size)
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{
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struct process_queue_node *pqn;
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pqn = get_queue_by_qid(pqm, qid);
|
|
if (!pqn) {
|
|
pr_debug("amdkfd: No queue %d exists for operation\n",
|
|
qid);
|
|
return -EFAULT;
|
|
}
|
|
|
|
return pqn->q->device->dqm->ops.get_wave_state(pqn->q->device->dqm,
|
|
pqn->q,
|
|
ctl_stack,
|
|
ctl_stack_used_size,
|
|
save_area_used_size);
|
|
}
|
|
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
|
|
int pqm_debugfs_mqds(struct seq_file *m, void *data)
|
|
{
|
|
struct process_queue_manager *pqm = data;
|
|
struct process_queue_node *pqn;
|
|
struct queue *q;
|
|
enum KFD_MQD_TYPE mqd_type;
|
|
struct mqd_manager *mqd_mgr;
|
|
int r = 0;
|
|
|
|
list_for_each_entry(pqn, &pqm->queues, process_queue_list) {
|
|
if (pqn->q) {
|
|
q = pqn->q;
|
|
switch (q->properties.type) {
|
|
case KFD_QUEUE_TYPE_SDMA:
|
|
case KFD_QUEUE_TYPE_SDMA_XGMI:
|
|
seq_printf(m, " SDMA queue on device %x\n",
|
|
q->device->id);
|
|
mqd_type = KFD_MQD_TYPE_SDMA;
|
|
break;
|
|
case KFD_QUEUE_TYPE_COMPUTE:
|
|
seq_printf(m, " Compute queue on device %x\n",
|
|
q->device->id);
|
|
mqd_type = KFD_MQD_TYPE_CP;
|
|
break;
|
|
default:
|
|
seq_printf(m,
|
|
" Bad user queue type %d on device %x\n",
|
|
q->properties.type, q->device->id);
|
|
continue;
|
|
}
|
|
mqd_mgr = q->device->dqm->mqd_mgrs[mqd_type];
|
|
} else if (pqn->kq) {
|
|
q = pqn->kq->queue;
|
|
mqd_mgr = pqn->kq->mqd_mgr;
|
|
switch (q->properties.type) {
|
|
case KFD_QUEUE_TYPE_DIQ:
|
|
seq_printf(m, " DIQ on device %x\n",
|
|
pqn->kq->dev->id);
|
|
break;
|
|
default:
|
|
seq_printf(m,
|
|
" Bad kernel queue type %d on device %x\n",
|
|
q->properties.type,
|
|
pqn->kq->dev->id);
|
|
continue;
|
|
}
|
|
} else {
|
|
seq_printf(m,
|
|
" Weird: Queue node with neither kernel nor user queue\n");
|
|
continue;
|
|
}
|
|
|
|
r = mqd_mgr->debugfs_show_mqd(m, q->mqd);
|
|
if (r != 0)
|
|
break;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
#endif
|