2014-07-16 16:27:00 -06:00
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/*
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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 <linux/types.h>
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#include <linux/printk.h>
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#include <linux/bitops.h>
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2015-01-15 03:01:10 -07:00
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#include <linux/sched.h>
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2014-07-16 16:27:00 -06:00
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#include "kfd_priv.h"
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#include "kfd_device_queue_manager.h"
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#include "kfd_mqd_manager.h"
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#include "cik_regs.h"
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#include "kfd_kernel_queue.h"
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/* Size of the per-pipe EOP queue */
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#define CIK_HPD_EOP_BYTES_LOG2 11
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#define CIK_HPD_EOP_BYTES (1U << CIK_HPD_EOP_BYTES_LOG2)
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static int set_pasid_vmid_mapping(struct device_queue_manager *dqm,
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unsigned int pasid, unsigned int vmid);
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static int create_compute_queue_nocpsch(struct device_queue_manager *dqm,
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struct queue *q,
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struct qcm_process_device *qpd);
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2015-01-03 13:12:32 -07:00
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2014-07-16 16:27:00 -06:00
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static int execute_queues_cpsch(struct device_queue_manager *dqm, bool lock);
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2015-05-20 04:43:04 -06:00
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static int destroy_queues_cpsch(struct device_queue_manager *dqm,
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bool preempt_static_queues, bool lock);
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2014-07-16 16:27:00 -06:00
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2015-01-03 13:12:32 -07:00
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static int create_sdma_queue_nocpsch(struct device_queue_manager *dqm,
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struct queue *q,
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struct qcm_process_device *qpd);
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static void deallocate_sdma_queue(struct device_queue_manager *dqm,
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unsigned int sdma_queue_id);
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2014-07-16 16:27:00 -06:00
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2015-01-03 13:12:32 -07:00
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static inline
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enum KFD_MQD_TYPE get_mqd_type_from_queue_type(enum kfd_queue_type type)
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2014-07-16 16:27:00 -06:00
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{
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2015-01-03 13:12:32 -07:00
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if (type == KFD_QUEUE_TYPE_SDMA)
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2015-01-04 01:36:30 -07:00
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return KFD_MQD_TYPE_SDMA;
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return KFD_MQD_TYPE_CP;
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2014-07-16 16:27:00 -06:00
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}
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2017-02-03 14:28:48 -07:00
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static bool is_pipe_enabled(struct device_queue_manager *dqm, int mec, int pipe)
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{
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int i;
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int pipe_offset = mec * dqm->dev->shared_resources.num_pipe_per_mec
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+ pipe * dqm->dev->shared_resources.num_queue_per_pipe;
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/* queue is available for KFD usage if bit is 1 */
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for (i = 0; i < dqm->dev->shared_resources.num_queue_per_pipe; ++i)
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if (test_bit(pipe_offset + i,
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dqm->dev->shared_resources.queue_bitmap))
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return true;
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return false;
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}
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unsigned int get_queues_num(struct device_queue_manager *dqm)
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2015-02-17 02:30:31 -07:00
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{
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BUG_ON(!dqm || !dqm->dev);
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2017-02-03 14:28:48 -07:00
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return bitmap_weight(dqm->dev->shared_resources.queue_bitmap,
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KGD_MAX_QUEUES);
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2015-02-17 02:30:31 -07:00
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}
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2017-02-03 14:28:48 -07:00
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unsigned int get_queues_per_pipe(struct device_queue_manager *dqm)
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2014-07-16 16:27:00 -06:00
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{
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2017-02-03 14:28:48 -07:00
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BUG_ON(!dqm || !dqm->dev);
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return dqm->dev->shared_resources.num_queue_per_pipe;
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}
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unsigned int get_pipes_per_mec(struct device_queue_manager *dqm)
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{
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BUG_ON(!dqm || !dqm->dev);
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return dqm->dev->shared_resources.num_pipe_per_mec;
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2014-07-16 16:27:00 -06:00
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}
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2015-01-12 05:28:46 -07:00
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void program_sh_mem_settings(struct device_queue_manager *dqm,
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2014-07-16 16:27:00 -06:00
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struct qcm_process_device *qpd)
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{
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2015-03-17 05:32:53 -06:00
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return dqm->dev->kfd2kgd->program_sh_mem_settings(
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dqm->dev->kgd, qpd->vmid,
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2014-07-16 16:27:00 -06:00
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qpd->sh_mem_config,
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qpd->sh_mem_ape1_base,
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qpd->sh_mem_ape1_limit,
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qpd->sh_mem_bases);
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}
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static int allocate_vmid(struct device_queue_manager *dqm,
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struct qcm_process_device *qpd,
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struct queue *q)
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{
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int bit, allocated_vmid;
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if (dqm->vmid_bitmap == 0)
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return -ENOMEM;
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bit = find_first_bit((unsigned long *)&dqm->vmid_bitmap, CIK_VMID_NUM);
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clear_bit(bit, (unsigned long *)&dqm->vmid_bitmap);
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/* Kaveri kfd vmid's starts from vmid 8 */
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allocated_vmid = bit + KFD_VMID_START_OFFSET;
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pr_debug("kfd: vmid allocation %d\n", allocated_vmid);
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qpd->vmid = allocated_vmid;
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q->properties.vmid = allocated_vmid;
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set_pasid_vmid_mapping(dqm, q->process->pasid, q->properties.vmid);
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program_sh_mem_settings(dqm, qpd);
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return 0;
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}
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static void deallocate_vmid(struct device_queue_manager *dqm,
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struct qcm_process_device *qpd,
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struct queue *q)
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{
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int bit = qpd->vmid - KFD_VMID_START_OFFSET;
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2015-01-05 06:48:28 -07:00
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/* Release the vmid mapping */
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set_pasid_vmid_mapping(dqm, 0, qpd->vmid);
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2014-07-16 16:27:00 -06:00
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set_bit(bit, (unsigned long *)&dqm->vmid_bitmap);
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qpd->vmid = 0;
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q->properties.vmid = 0;
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}
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static int create_queue_nocpsch(struct device_queue_manager *dqm,
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struct queue *q,
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struct qcm_process_device *qpd,
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int *allocated_vmid)
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{
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int retval;
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BUG_ON(!dqm || !q || !qpd || !allocated_vmid);
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pr_debug("kfd: In func %s\n", __func__);
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print_queue(q);
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mutex_lock(&dqm->lock);
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2015-01-18 04:18:01 -07:00
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if (dqm->total_queue_count >= max_num_of_queues_per_device) {
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pr_warn("amdkfd: Can't create new usermode queue because %d queues were already created\n",
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dqm->total_queue_count);
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mutex_unlock(&dqm->lock);
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return -EPERM;
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}
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2014-07-16 16:27:00 -06:00
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if (list_empty(&qpd->queues_list)) {
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retval = allocate_vmid(dqm, qpd, q);
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if (retval != 0) {
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mutex_unlock(&dqm->lock);
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return retval;
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}
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}
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*allocated_vmid = qpd->vmid;
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q->properties.vmid = qpd->vmid;
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2015-01-03 13:12:32 -07:00
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if (q->properties.type == KFD_QUEUE_TYPE_COMPUTE)
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retval = create_compute_queue_nocpsch(dqm, q, qpd);
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if (q->properties.type == KFD_QUEUE_TYPE_SDMA)
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retval = create_sdma_queue_nocpsch(dqm, q, qpd);
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2014-07-16 16:27:00 -06:00
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if (retval != 0) {
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if (list_empty(&qpd->queues_list)) {
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deallocate_vmid(dqm, qpd, q);
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*allocated_vmid = 0;
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}
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mutex_unlock(&dqm->lock);
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return retval;
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}
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list_add(&q->list, &qpd->queues_list);
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2015-01-19 15:08:14 -07:00
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if (q->properties.is_active)
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dqm->queue_count++;
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2014-07-16 16:27:00 -06:00
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2015-01-03 13:12:32 -07:00
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if (q->properties.type == KFD_QUEUE_TYPE_SDMA)
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dqm->sdma_queue_count++;
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2014-07-16 16:27:00 -06:00
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2015-01-18 04:18:01 -07:00
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/*
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* Unconditionally increment this counter, regardless of the queue's
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* type or whether the queue is active.
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*/
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dqm->total_queue_count++;
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pr_debug("Total of %d queues are accountable so far\n",
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dqm->total_queue_count);
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2014-07-16 16:27:00 -06:00
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mutex_unlock(&dqm->lock);
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return 0;
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}
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static int allocate_hqd(struct device_queue_manager *dqm, struct queue *q)
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{
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bool set;
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2015-01-13 02:18:06 -07:00
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int pipe, bit, i;
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2014-07-16 16:27:00 -06:00
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set = false;
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2017-02-03 14:28:48 -07:00
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for (pipe = dqm->next_pipe_to_allocate, i = 0; i < get_pipes_per_mec(dqm);
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pipe = ((pipe + 1) % get_pipes_per_mec(dqm)), ++i) {
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if (!is_pipe_enabled(dqm, 0, pipe))
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continue;
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2014-07-16 16:27:00 -06:00
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if (dqm->allocated_queues[pipe] != 0) {
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bit = find_first_bit(
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(unsigned long *)&dqm->allocated_queues[pipe],
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2017-02-03 14:28:48 -07:00
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get_queues_per_pipe(dqm));
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2014-07-16 16:27:00 -06:00
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clear_bit(bit,
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(unsigned long *)&dqm->allocated_queues[pipe]);
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q->pipe = pipe;
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q->queue = bit;
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set = true;
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break;
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}
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}
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2016-04-30 08:06:27 -06:00
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if (!set)
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2014-07-16 16:27:00 -06:00
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return -EBUSY;
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pr_debug("kfd: DQM %s hqd slot - pipe (%d) queue(%d)\n",
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__func__, q->pipe, q->queue);
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/* horizontal hqd allocation */
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2017-02-03 14:28:48 -07:00
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dqm->next_pipe_to_allocate = (pipe + 1) % get_pipes_per_mec(dqm);
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2014-07-16 16:27:00 -06:00
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return 0;
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}
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static inline void deallocate_hqd(struct device_queue_manager *dqm,
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struct queue *q)
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{
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set_bit(q->queue, (unsigned long *)&dqm->allocated_queues[q->pipe]);
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}
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static int create_compute_queue_nocpsch(struct device_queue_manager *dqm,
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struct queue *q,
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struct qcm_process_device *qpd)
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{
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int retval;
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struct mqd_manager *mqd;
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BUG_ON(!dqm || !q || !qpd);
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|
2015-01-12 05:26:10 -07:00
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mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE);
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2014-07-16 16:27:00 -06:00
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if (mqd == NULL)
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return -ENOMEM;
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retval = allocate_hqd(dqm, q);
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if (retval != 0)
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return retval;
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retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj,
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&q->gart_mqd_addr, &q->properties);
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if (retval != 0) {
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deallocate_hqd(dqm, q);
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return retval;
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}
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2015-01-04 12:46:44 -07:00
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pr_debug("kfd: loading mqd to hqd on pipe (%d) queue (%d)\n",
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q->pipe,
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q->queue);
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retval = mqd->load_mqd(mqd, q->mqd, q->pipe,
|
2015-01-08 07:46:16 -07:00
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q->queue, (uint32_t __user *) q->properties.write_ptr);
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2015-01-04 12:46:44 -07:00
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if (retval != 0) {
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deallocate_hqd(dqm, q);
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mqd->uninit_mqd(mqd, q->mqd, q->mqd_mem_obj);
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return retval;
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}
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|
2014-07-16 16:27:00 -06:00
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return 0;
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}
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static int destroy_queue_nocpsch(struct device_queue_manager *dqm,
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struct qcm_process_device *qpd,
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struct queue *q)
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{
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int retval;
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struct mqd_manager *mqd;
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BUG_ON(!dqm || !q || !q->mqd || !qpd);
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retval = 0;
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pr_debug("kfd: In Func %s\n", __func__);
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mutex_lock(&dqm->lock);
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2014-08-18 05:55:59 -06:00
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if (q->properties.type == KFD_QUEUE_TYPE_COMPUTE) {
|
2015-01-12 05:26:10 -07:00
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mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE);
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2014-08-18 05:55:59 -06:00
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if (mqd == NULL) {
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retval = -ENOMEM;
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goto out;
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}
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deallocate_hqd(dqm, q);
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} else if (q->properties.type == KFD_QUEUE_TYPE_SDMA) {
|
2015-01-12 05:26:10 -07:00
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mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_SDMA);
|
2014-08-18 05:55:59 -06:00
|
|
|
if (mqd == NULL) {
|
|
|
|
retval = -ENOMEM;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
dqm->sdma_queue_count--;
|
|
|
|
deallocate_sdma_queue(dqm, q->sdma_id);
|
2015-01-22 02:40:06 -07:00
|
|
|
} else {
|
|
|
|
pr_debug("q->properties.type is invalid (%d)\n",
|
|
|
|
q->properties.type);
|
|
|
|
retval = -EINVAL;
|
2014-07-16 16:27:00 -06:00
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
retval = mqd->destroy_mqd(mqd, q->mqd,
|
2014-08-18 05:55:59 -06:00
|
|
|
KFD_PREEMPT_TYPE_WAVEFRONT_RESET,
|
2014-07-16 16:27:00 -06:00
|
|
|
QUEUE_PREEMPT_DEFAULT_TIMEOUT_MS,
|
|
|
|
q->pipe, q->queue);
|
|
|
|
|
|
|
|
if (retval != 0)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
mqd->uninit_mqd(mqd, q->mqd, q->mqd_mem_obj);
|
|
|
|
|
|
|
|
list_del(&q->list);
|
|
|
|
if (list_empty(&qpd->queues_list))
|
|
|
|
deallocate_vmid(dqm, qpd, q);
|
2015-01-19 15:08:14 -07:00
|
|
|
if (q->properties.is_active)
|
|
|
|
dqm->queue_count--;
|
2015-01-18 04:18:01 -07:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Unconditionally decrement this counter, regardless of the queue's
|
|
|
|
* type
|
|
|
|
*/
|
|
|
|
dqm->total_queue_count--;
|
|
|
|
pr_debug("Total of %d queues are accountable so far\n",
|
|
|
|
dqm->total_queue_count);
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
out:
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int update_queue(struct device_queue_manager *dqm, struct queue *q)
|
|
|
|
{
|
|
|
|
int retval;
|
|
|
|
struct mqd_manager *mqd;
|
2014-12-07 13:27:24 -07:00
|
|
|
bool prev_active = false;
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
BUG_ON(!dqm || !q || !q->mqd);
|
|
|
|
|
|
|
|
mutex_lock(&dqm->lock);
|
2015-01-22 04:42:28 -07:00
|
|
|
mqd = dqm->ops.get_mqd_manager(dqm,
|
|
|
|
get_mqd_type_from_queue_type(q->properties.type));
|
2014-07-16 16:27:00 -06:00
|
|
|
if (mqd == NULL) {
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2016-04-30 08:06:27 -06:00
|
|
|
if (q->properties.is_active)
|
2014-12-07 13:27:24 -07:00
|
|
|
prev_active = true;
|
|
|
|
|
|
|
|
/*
|
|
|
|
*
|
|
|
|
* check active state vs. the previous state
|
|
|
|
* and modify counter accordingly
|
|
|
|
*/
|
|
|
|
retval = mqd->update_mqd(mqd, q->mqd, &q->properties);
|
2016-04-30 08:06:27 -06:00
|
|
|
if ((q->properties.is_active) && (!prev_active))
|
2014-07-16 16:27:00 -06:00
|
|
|
dqm->queue_count++;
|
2016-04-30 08:06:27 -06:00
|
|
|
else if ((!q->properties.is_active) && (prev_active))
|
2014-07-16 16:27:00 -06:00
|
|
|
dqm->queue_count--;
|
|
|
|
|
|
|
|
if (sched_policy != KFD_SCHED_POLICY_NO_HWS)
|
|
|
|
retval = execute_queues_cpsch(dqm, false);
|
|
|
|
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct mqd_manager *get_mqd_manager_nocpsch(
|
|
|
|
struct device_queue_manager *dqm, enum KFD_MQD_TYPE type)
|
|
|
|
{
|
|
|
|
struct mqd_manager *mqd;
|
|
|
|
|
|
|
|
BUG_ON(!dqm || type >= KFD_MQD_TYPE_MAX);
|
|
|
|
|
|
|
|
pr_debug("kfd: In func %s mqd type %d\n", __func__, type);
|
|
|
|
|
|
|
|
mqd = dqm->mqds[type];
|
|
|
|
if (!mqd) {
|
|
|
|
mqd = mqd_manager_init(type, dqm->dev);
|
|
|
|
if (mqd == NULL)
|
|
|
|
pr_err("kfd: mqd manager is NULL");
|
|
|
|
dqm->mqds[type] = mqd;
|
|
|
|
}
|
|
|
|
|
|
|
|
return mqd;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int register_process_nocpsch(struct device_queue_manager *dqm,
|
|
|
|
struct qcm_process_device *qpd)
|
|
|
|
{
|
|
|
|
struct device_process_node *n;
|
2015-01-12 05:28:46 -07:00
|
|
|
int retval;
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
BUG_ON(!dqm || !qpd);
|
|
|
|
|
|
|
|
pr_debug("kfd: In func %s\n", __func__);
|
|
|
|
|
|
|
|
n = kzalloc(sizeof(struct device_process_node), GFP_KERNEL);
|
|
|
|
if (!n)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
n->qpd = qpd;
|
|
|
|
|
|
|
|
mutex_lock(&dqm->lock);
|
|
|
|
list_add(&n->list, &dqm->queues);
|
|
|
|
|
2015-01-12 05:28:46 -07:00
|
|
|
retval = dqm->ops_asic_specific.register_process(dqm, qpd);
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
dqm->processes_count++;
|
|
|
|
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
|
2015-01-12 05:28:46 -07:00
|
|
|
return retval;
|
2014-07-16 16:27:00 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
static int unregister_process_nocpsch(struct device_queue_manager *dqm,
|
|
|
|
struct qcm_process_device *qpd)
|
|
|
|
{
|
|
|
|
int retval;
|
|
|
|
struct device_process_node *cur, *next;
|
|
|
|
|
|
|
|
BUG_ON(!dqm || !qpd);
|
|
|
|
|
2015-04-14 05:13:18 -06:00
|
|
|
pr_debug("In func %s\n", __func__);
|
2014-07-16 16:27:00 -06:00
|
|
|
|
2015-04-14 05:13:18 -06:00
|
|
|
pr_debug("qpd->queues_list is %s\n",
|
|
|
|
list_empty(&qpd->queues_list) ? "empty" : "not empty");
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
retval = 0;
|
|
|
|
mutex_lock(&dqm->lock);
|
|
|
|
|
|
|
|
list_for_each_entry_safe(cur, next, &dqm->queues, list) {
|
|
|
|
if (qpd == cur->qpd) {
|
|
|
|
list_del(&cur->list);
|
2014-11-20 10:52:16 -07:00
|
|
|
kfree(cur);
|
2014-07-16 16:27:00 -06:00
|
|
|
dqm->processes_count--;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* qpd not found in dqm list */
|
|
|
|
retval = 1;
|
|
|
|
out:
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
set_pasid_vmid_mapping(struct device_queue_manager *dqm, unsigned int pasid,
|
|
|
|
unsigned int vmid)
|
|
|
|
{
|
|
|
|
uint32_t pasid_mapping;
|
|
|
|
|
2015-03-17 05:32:53 -06:00
|
|
|
pasid_mapping = (pasid == 0) ? 0 :
|
|
|
|
(uint32_t)pasid |
|
|
|
|
ATC_VMID_PASID_MAPPING_VALID;
|
|
|
|
|
|
|
|
return dqm->dev->kfd2kgd->set_pasid_vmid_mapping(
|
|
|
|
dqm->dev->kgd, pasid_mapping,
|
2014-07-16 16:27:00 -06:00
|
|
|
vmid);
|
|
|
|
}
|
|
|
|
|
2014-07-16 16:37:30 -06:00
|
|
|
static void init_interrupts(struct device_queue_manager *dqm)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
BUG_ON(dqm == NULL);
|
|
|
|
|
2017-02-03 14:28:48 -07:00
|
|
|
for (i = 0 ; i < get_pipes_per_mec(dqm) ; i++)
|
|
|
|
if (is_pipe_enabled(dqm, 0, i))
|
|
|
|
dqm->dev->kfd2kgd->init_interrupts(dqm->dev->kgd, i);
|
2014-07-16 16:37:30 -06:00
|
|
|
}
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
static int init_scheduler(struct device_queue_manager *dqm)
|
|
|
|
{
|
2017-02-03 14:28:48 -07:00
|
|
|
int retval = 0;
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
BUG_ON(!dqm);
|
|
|
|
|
|
|
|
pr_debug("kfd: In %s\n", __func__);
|
|
|
|
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int initialize_nocpsch(struct device_queue_manager *dqm)
|
|
|
|
{
|
2017-08-15 21:00:02 -06:00
|
|
|
int pipe, queue;
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
BUG_ON(!dqm);
|
|
|
|
|
|
|
|
pr_debug("kfd: In func %s num of pipes: %d\n",
|
2017-02-03 14:28:48 -07:00
|
|
|
__func__, get_pipes_per_mec(dqm));
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
mutex_init(&dqm->lock);
|
|
|
|
INIT_LIST_HEAD(&dqm->queues);
|
|
|
|
dqm->queue_count = dqm->next_pipe_to_allocate = 0;
|
2015-01-03 13:12:32 -07:00
|
|
|
dqm->sdma_queue_count = 0;
|
2017-02-03 14:28:48 -07:00
|
|
|
dqm->allocated_queues = kcalloc(get_pipes_per_mec(dqm),
|
2014-07-16 16:27:00 -06:00
|
|
|
sizeof(unsigned int), GFP_KERNEL);
|
|
|
|
if (!dqm->allocated_queues) {
|
|
|
|
mutex_destroy(&dqm->lock);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2017-08-15 21:00:02 -06:00
|
|
|
for (pipe = 0; pipe < get_pipes_per_mec(dqm); pipe++) {
|
|
|
|
int pipe_offset = pipe * get_queues_per_pipe(dqm);
|
|
|
|
|
|
|
|
for (queue = 0; queue < get_queues_per_pipe(dqm); queue++)
|
|
|
|
if (test_bit(pipe_offset + queue,
|
|
|
|
dqm->dev->shared_resources.queue_bitmap))
|
|
|
|
dqm->allocated_queues[pipe] |= 1 << queue;
|
|
|
|
}
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
dqm->vmid_bitmap = (1 << VMID_PER_DEVICE) - 1;
|
2015-01-03 13:12:32 -07:00
|
|
|
dqm->sdma_bitmap = (1 << CIK_SDMA_QUEUES) - 1;
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
init_scheduler(dqm);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void uninitialize_nocpsch(struct device_queue_manager *dqm)
|
|
|
|
{
|
2014-11-25 06:16:38 -07:00
|
|
|
int i;
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
BUG_ON(!dqm);
|
|
|
|
|
|
|
|
BUG_ON(dqm->queue_count > 0 || dqm->processes_count > 0);
|
|
|
|
|
|
|
|
kfree(dqm->allocated_queues);
|
2014-11-25 06:16:38 -07:00
|
|
|
for (i = 0 ; i < KFD_MQD_TYPE_MAX ; i++)
|
|
|
|
kfree(dqm->mqds[i]);
|
2014-07-16 16:27:00 -06:00
|
|
|
mutex_destroy(&dqm->lock);
|
2014-10-26 14:00:31 -06:00
|
|
|
kfd_gtt_sa_free(dqm->dev, dqm->pipeline_mem);
|
2014-07-16 16:27:00 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
static int start_nocpsch(struct device_queue_manager *dqm)
|
|
|
|
{
|
2014-07-16 16:37:30 -06:00
|
|
|
init_interrupts(dqm);
|
2014-07-16 16:27:00 -06:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int stop_nocpsch(struct device_queue_manager *dqm)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2015-01-03 13:12:32 -07:00
|
|
|
static int allocate_sdma_queue(struct device_queue_manager *dqm,
|
|
|
|
unsigned int *sdma_queue_id)
|
|
|
|
{
|
|
|
|
int bit;
|
|
|
|
|
|
|
|
if (dqm->sdma_bitmap == 0)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
bit = find_first_bit((unsigned long *)&dqm->sdma_bitmap,
|
|
|
|
CIK_SDMA_QUEUES);
|
|
|
|
|
|
|
|
clear_bit(bit, (unsigned long *)&dqm->sdma_bitmap);
|
|
|
|
*sdma_queue_id = bit;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void deallocate_sdma_queue(struct device_queue_manager *dqm,
|
|
|
|
unsigned int sdma_queue_id)
|
|
|
|
{
|
2015-01-22 02:09:27 -07:00
|
|
|
if (sdma_queue_id >= CIK_SDMA_QUEUES)
|
2015-01-03 13:12:32 -07:00
|
|
|
return;
|
|
|
|
set_bit(sdma_queue_id, (unsigned long *)&dqm->sdma_bitmap);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int create_sdma_queue_nocpsch(struct device_queue_manager *dqm,
|
|
|
|
struct queue *q,
|
|
|
|
struct qcm_process_device *qpd)
|
|
|
|
{
|
|
|
|
struct mqd_manager *mqd;
|
|
|
|
int retval;
|
|
|
|
|
2015-01-12 05:26:10 -07:00
|
|
|
mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_SDMA);
|
2015-01-03 13:12:32 -07:00
|
|
|
if (!mqd)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
retval = allocate_sdma_queue(dqm, &q->sdma_id);
|
|
|
|
if (retval != 0)
|
|
|
|
return retval;
|
|
|
|
|
|
|
|
q->properties.sdma_queue_id = q->sdma_id % CIK_SDMA_QUEUES_PER_ENGINE;
|
|
|
|
q->properties.sdma_engine_id = q->sdma_id / CIK_SDMA_ENGINE_NUM;
|
|
|
|
|
|
|
|
pr_debug("kfd: sdma id is: %d\n", q->sdma_id);
|
|
|
|
pr_debug(" sdma queue id: %d\n", q->properties.sdma_queue_id);
|
|
|
|
pr_debug(" sdma engine id: %d\n", q->properties.sdma_engine_id);
|
|
|
|
|
2015-05-05 02:51:39 -06:00
|
|
|
dqm->ops_asic_specific.init_sdma_vm(dqm, q, qpd);
|
2015-01-03 13:12:32 -07:00
|
|
|
retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj,
|
|
|
|
&q->gart_mqd_addr, &q->properties);
|
|
|
|
if (retval != 0) {
|
|
|
|
deallocate_sdma_queue(dqm, q->sdma_id);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
2015-03-10 06:02:25 -06:00
|
|
|
retval = mqd->load_mqd(mqd, q->mqd, 0,
|
|
|
|
0, NULL);
|
|
|
|
if (retval != 0) {
|
|
|
|
deallocate_sdma_queue(dqm, q->sdma_id);
|
|
|
|
mqd->uninit_mqd(mqd, q->mqd, q->mqd_mem_obj);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
2015-01-03 13:12:32 -07:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
/*
|
|
|
|
* Device Queue Manager implementation for cp scheduler
|
|
|
|
*/
|
|
|
|
|
|
|
|
static int set_sched_resources(struct device_queue_manager *dqm)
|
|
|
|
{
|
2017-02-03 14:28:48 -07:00
|
|
|
int i, mec;
|
2014-07-16 16:27:00 -06:00
|
|
|
struct scheduling_resources res;
|
|
|
|
|
|
|
|
BUG_ON(!dqm);
|
|
|
|
|
|
|
|
pr_debug("kfd: In func %s\n", __func__);
|
|
|
|
|
|
|
|
res.vmid_mask = (1 << VMID_PER_DEVICE) - 1;
|
|
|
|
res.vmid_mask <<= KFD_VMID_START_OFFSET;
|
2017-02-03 14:28:48 -07:00
|
|
|
|
|
|
|
res.queue_mask = 0;
|
|
|
|
for (i = 0; i < KGD_MAX_QUEUES; ++i) {
|
|
|
|
mec = (i / dqm->dev->shared_resources.num_queue_per_pipe)
|
|
|
|
/ dqm->dev->shared_resources.num_pipe_per_mec;
|
|
|
|
|
|
|
|
if (!test_bit(i, dqm->dev->shared_resources.queue_bitmap))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
/* only acquire queues from the first MEC */
|
|
|
|
if (mec > 0)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
/* This situation may be hit in the future if a new HW
|
|
|
|
* generation exposes more than 64 queues. If so, the
|
|
|
|
* definition of res.queue_mask needs updating */
|
2017-07-11 13:53:29 -06:00
|
|
|
if (WARN_ON(i >= (sizeof(res.queue_mask)*8))) {
|
2017-02-03 14:28:48 -07:00
|
|
|
pr_err("Invalid queue enabled by amdgpu: %d\n", i);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
res.queue_mask |= (1ull << i);
|
|
|
|
}
|
2014-07-16 16:27:00 -06:00
|
|
|
res.gws_mask = res.oac_mask = res.gds_heap_base =
|
|
|
|
res.gds_heap_size = 0;
|
|
|
|
|
|
|
|
pr_debug("kfd: scheduling resources:\n"
|
|
|
|
" vmid mask: 0x%8X\n"
|
|
|
|
" queue mask: 0x%8llX\n",
|
|
|
|
res.vmid_mask, res.queue_mask);
|
|
|
|
|
|
|
|
return pm_send_set_resources(&dqm->packets, &res);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int initialize_cpsch(struct device_queue_manager *dqm)
|
|
|
|
{
|
|
|
|
int retval;
|
|
|
|
|
|
|
|
BUG_ON(!dqm);
|
|
|
|
|
|
|
|
pr_debug("kfd: In func %s num of pipes: %d\n",
|
2017-02-03 14:28:48 -07:00
|
|
|
__func__, get_pipes_per_mec(dqm));
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
mutex_init(&dqm->lock);
|
|
|
|
INIT_LIST_HEAD(&dqm->queues);
|
|
|
|
dqm->queue_count = dqm->processes_count = 0;
|
2015-01-03 13:12:32 -07:00
|
|
|
dqm->sdma_queue_count = 0;
|
2014-07-16 16:27:00 -06:00
|
|
|
dqm->active_runlist = false;
|
2015-01-12 05:28:46 -07:00
|
|
|
retval = dqm->ops_asic_specific.initialize(dqm);
|
2014-07-16 16:27:00 -06:00
|
|
|
if (retval != 0)
|
|
|
|
goto fail_init_pipelines;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
fail_init_pipelines:
|
|
|
|
mutex_destroy(&dqm->lock);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int start_cpsch(struct device_queue_manager *dqm)
|
|
|
|
{
|
|
|
|
struct device_process_node *node;
|
|
|
|
int retval;
|
|
|
|
|
|
|
|
BUG_ON(!dqm);
|
|
|
|
|
|
|
|
retval = 0;
|
|
|
|
|
|
|
|
retval = pm_init(&dqm->packets, dqm);
|
|
|
|
if (retval != 0)
|
|
|
|
goto fail_packet_manager_init;
|
|
|
|
|
|
|
|
retval = set_sched_resources(dqm);
|
|
|
|
if (retval != 0)
|
|
|
|
goto fail_set_sched_resources;
|
|
|
|
|
|
|
|
pr_debug("kfd: allocating fence memory\n");
|
|
|
|
|
|
|
|
/* allocate fence memory on the gart */
|
2014-10-26 14:00:31 -06:00
|
|
|
retval = kfd_gtt_sa_allocate(dqm->dev, sizeof(*dqm->fence_addr),
|
|
|
|
&dqm->fence_mem);
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
if (retval != 0)
|
|
|
|
goto fail_allocate_vidmem;
|
|
|
|
|
|
|
|
dqm->fence_addr = dqm->fence_mem->cpu_ptr;
|
|
|
|
dqm->fence_gpu_addr = dqm->fence_mem->gpu_addr;
|
2014-07-16 16:37:30 -06:00
|
|
|
|
|
|
|
init_interrupts(dqm);
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
list_for_each_entry(node, &dqm->queues, list)
|
|
|
|
if (node->qpd->pqm->process && dqm->dev)
|
|
|
|
kfd_bind_process_to_device(dqm->dev,
|
|
|
|
node->qpd->pqm->process);
|
|
|
|
|
|
|
|
execute_queues_cpsch(dqm, true);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
fail_allocate_vidmem:
|
|
|
|
fail_set_sched_resources:
|
|
|
|
pm_uninit(&dqm->packets);
|
|
|
|
fail_packet_manager_init:
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int stop_cpsch(struct device_queue_manager *dqm)
|
|
|
|
{
|
|
|
|
struct device_process_node *node;
|
|
|
|
struct kfd_process_device *pdd;
|
|
|
|
|
|
|
|
BUG_ON(!dqm);
|
|
|
|
|
2015-05-20 04:43:04 -06:00
|
|
|
destroy_queues_cpsch(dqm, true, true);
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
list_for_each_entry(node, &dqm->queues, list) {
|
2014-11-19 08:07:00 -07:00
|
|
|
pdd = qpd_to_pdd(node->qpd);
|
2014-07-16 16:27:00 -06:00
|
|
|
pdd->bound = false;
|
|
|
|
}
|
2014-10-26 14:00:31 -06:00
|
|
|
kfd_gtt_sa_free(dqm->dev, dqm->fence_mem);
|
2014-07-16 16:27:00 -06:00
|
|
|
pm_uninit(&dqm->packets);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int create_kernel_queue_cpsch(struct device_queue_manager *dqm,
|
|
|
|
struct kernel_queue *kq,
|
|
|
|
struct qcm_process_device *qpd)
|
|
|
|
{
|
|
|
|
BUG_ON(!dqm || !kq || !qpd);
|
|
|
|
|
|
|
|
pr_debug("kfd: In func %s\n", __func__);
|
|
|
|
|
|
|
|
mutex_lock(&dqm->lock);
|
2015-01-18 04:18:01 -07:00
|
|
|
if (dqm->total_queue_count >= max_num_of_queues_per_device) {
|
|
|
|
pr_warn("amdkfd: Can't create new kernel queue because %d queues were already created\n",
|
|
|
|
dqm->total_queue_count);
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
return -EPERM;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Unconditionally increment this counter, regardless of the queue's
|
|
|
|
* type or whether the queue is active.
|
|
|
|
*/
|
|
|
|
dqm->total_queue_count++;
|
|
|
|
pr_debug("Total of %d queues are accountable so far\n",
|
|
|
|
dqm->total_queue_count);
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
list_add(&kq->list, &qpd->priv_queue_list);
|
|
|
|
dqm->queue_count++;
|
|
|
|
qpd->is_debug = true;
|
|
|
|
execute_queues_cpsch(dqm, false);
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void destroy_kernel_queue_cpsch(struct device_queue_manager *dqm,
|
|
|
|
struct kernel_queue *kq,
|
|
|
|
struct qcm_process_device *qpd)
|
|
|
|
{
|
|
|
|
BUG_ON(!dqm || !kq);
|
|
|
|
|
|
|
|
pr_debug("kfd: In %s\n", __func__);
|
|
|
|
|
|
|
|
mutex_lock(&dqm->lock);
|
2015-05-20 04:43:04 -06:00
|
|
|
/* here we actually preempt the DIQ */
|
|
|
|
destroy_queues_cpsch(dqm, true, false);
|
2014-07-16 16:27:00 -06:00
|
|
|
list_del(&kq->list);
|
|
|
|
dqm->queue_count--;
|
|
|
|
qpd->is_debug = false;
|
|
|
|
execute_queues_cpsch(dqm, false);
|
2015-01-18 04:18:01 -07:00
|
|
|
/*
|
|
|
|
* Unconditionally decrement this counter, regardless of the queue's
|
|
|
|
* type.
|
|
|
|
*/
|
2015-01-29 01:32:25 -07:00
|
|
|
dqm->total_queue_count--;
|
2015-01-18 04:18:01 -07:00
|
|
|
pr_debug("Total of %d queues are accountable so far\n",
|
|
|
|
dqm->total_queue_count);
|
2014-07-16 16:27:00 -06:00
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
}
|
|
|
|
|
2015-01-03 13:12:32 -07:00
|
|
|
static void select_sdma_engine_id(struct queue *q)
|
|
|
|
{
|
|
|
|
static int sdma_id;
|
|
|
|
|
|
|
|
q->sdma_id = sdma_id;
|
|
|
|
sdma_id = (sdma_id + 1) % 2;
|
|
|
|
}
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q,
|
|
|
|
struct qcm_process_device *qpd, int *allocate_vmid)
|
|
|
|
{
|
|
|
|
int retval;
|
|
|
|
struct mqd_manager *mqd;
|
|
|
|
|
|
|
|
BUG_ON(!dqm || !q || !qpd);
|
|
|
|
|
|
|
|
retval = 0;
|
|
|
|
|
|
|
|
if (allocate_vmid)
|
|
|
|
*allocate_vmid = 0;
|
|
|
|
|
|
|
|
mutex_lock(&dqm->lock);
|
|
|
|
|
2015-01-18 04:18:01 -07:00
|
|
|
if (dqm->total_queue_count >= max_num_of_queues_per_device) {
|
|
|
|
pr_warn("amdkfd: Can't create new usermode queue because %d queues were already created\n",
|
|
|
|
dqm->total_queue_count);
|
|
|
|
retval = -EPERM;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2015-01-03 13:12:32 -07:00
|
|
|
if (q->properties.type == KFD_QUEUE_TYPE_SDMA)
|
|
|
|
select_sdma_engine_id(q);
|
|
|
|
|
2015-01-12 05:26:10 -07:00
|
|
|
mqd = dqm->ops.get_mqd_manager(dqm,
|
2015-01-03 13:12:32 -07:00
|
|
|
get_mqd_type_from_queue_type(q->properties.type));
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
if (mqd == NULL) {
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2015-05-20 00:23:53 -06:00
|
|
|
dqm->ops_asic_specific.init_sdma_vm(dqm, q, qpd);
|
2014-07-16 16:27:00 -06:00
|
|
|
retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj,
|
|
|
|
&q->gart_mqd_addr, &q->properties);
|
|
|
|
if (retval != 0)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
list_add(&q->list, &qpd->queues_list);
|
|
|
|
if (q->properties.is_active) {
|
|
|
|
dqm->queue_count++;
|
|
|
|
retval = execute_queues_cpsch(dqm, false);
|
|
|
|
}
|
|
|
|
|
2015-01-03 13:12:32 -07:00
|
|
|
if (q->properties.type == KFD_QUEUE_TYPE_SDMA)
|
|
|
|
dqm->sdma_queue_count++;
|
2015-01-18 04:18:01 -07:00
|
|
|
/*
|
|
|
|
* Unconditionally increment this counter, regardless of the queue's
|
|
|
|
* type or whether the queue is active.
|
|
|
|
*/
|
|
|
|
dqm->total_queue_count++;
|
|
|
|
|
|
|
|
pr_debug("Total of %d queues are accountable so far\n",
|
|
|
|
dqm->total_queue_count);
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
out:
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
2015-05-20 04:58:12 -06:00
|
|
|
int amdkfd_fence_wait_timeout(unsigned int *fence_addr,
|
2014-11-20 06:54:05 -07:00
|
|
|
unsigned int fence_value,
|
|
|
|
unsigned long timeout)
|
2014-07-16 16:27:00 -06:00
|
|
|
{
|
|
|
|
BUG_ON(!fence_addr);
|
|
|
|
timeout += jiffies;
|
|
|
|
|
|
|
|
while (*fence_addr != fence_value) {
|
|
|
|
if (time_after(jiffies, timeout)) {
|
|
|
|
pr_err("kfd: qcm fence wait loop timeout expired\n");
|
|
|
|
return -ETIME;
|
|
|
|
}
|
2015-01-15 03:01:10 -07:00
|
|
|
schedule();
|
2014-07-16 16:27:00 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2015-01-03 13:12:32 -07:00
|
|
|
static int destroy_sdma_queues(struct device_queue_manager *dqm,
|
|
|
|
unsigned int sdma_engine)
|
|
|
|
{
|
|
|
|
return pm_send_unmap_queue(&dqm->packets, KFD_QUEUE_TYPE_SDMA,
|
2015-05-20 04:43:04 -06:00
|
|
|
KFD_PREEMPT_TYPE_FILTER_DYNAMIC_QUEUES, 0, false,
|
2015-01-03 13:12:32 -07:00
|
|
|
sdma_engine);
|
|
|
|
}
|
|
|
|
|
2015-05-20 04:43:04 -06:00
|
|
|
static int destroy_queues_cpsch(struct device_queue_manager *dqm,
|
|
|
|
bool preempt_static_queues, bool lock)
|
2014-07-16 16:27:00 -06:00
|
|
|
{
|
|
|
|
int retval;
|
2015-05-20 04:43:04 -06:00
|
|
|
enum kfd_preempt_type_filter preempt_type;
|
2015-03-25 05:12:20 -06:00
|
|
|
struct kfd_process_device *pdd;
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
BUG_ON(!dqm);
|
|
|
|
|
|
|
|
retval = 0;
|
|
|
|
|
|
|
|
if (lock)
|
|
|
|
mutex_lock(&dqm->lock);
|
2016-04-30 08:06:27 -06:00
|
|
|
if (!dqm->active_runlist)
|
2014-07-16 16:27:00 -06:00
|
|
|
goto out;
|
2015-01-03 13:12:32 -07:00
|
|
|
|
|
|
|
pr_debug("kfd: Before destroying queues, sdma queue count is : %u\n",
|
|
|
|
dqm->sdma_queue_count);
|
|
|
|
|
|
|
|
if (dqm->sdma_queue_count > 0) {
|
|
|
|
destroy_sdma_queues(dqm, 0);
|
|
|
|
destroy_sdma_queues(dqm, 1);
|
|
|
|
}
|
|
|
|
|
2015-05-20 04:43:04 -06:00
|
|
|
preempt_type = preempt_static_queues ?
|
|
|
|
KFD_PREEMPT_TYPE_FILTER_ALL_QUEUES :
|
|
|
|
KFD_PREEMPT_TYPE_FILTER_DYNAMIC_QUEUES;
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
retval = pm_send_unmap_queue(&dqm->packets, KFD_QUEUE_TYPE_COMPUTE,
|
2015-05-20 04:43:04 -06:00
|
|
|
preempt_type, 0, false, 0);
|
2014-07-16 16:27:00 -06:00
|
|
|
if (retval != 0)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
*dqm->fence_addr = KFD_FENCE_INIT;
|
|
|
|
pm_send_query_status(&dqm->packets, dqm->fence_gpu_addr,
|
|
|
|
KFD_FENCE_COMPLETED);
|
|
|
|
/* should be timed out */
|
2015-05-20 09:05:44 -06:00
|
|
|
retval = amdkfd_fence_wait_timeout(dqm->fence_addr, KFD_FENCE_COMPLETED,
|
2014-07-16 16:27:00 -06:00
|
|
|
QUEUE_PREEMPT_DEFAULT_TIMEOUT_MS);
|
2015-05-20 09:05:44 -06:00
|
|
|
if (retval != 0) {
|
2015-03-25 05:12:20 -06:00
|
|
|
pdd = kfd_get_process_device_data(dqm->dev,
|
|
|
|
kfd_get_process(current));
|
|
|
|
pdd->reset_wavefronts = true;
|
2015-05-20 09:05:44 -06:00
|
|
|
goto out;
|
|
|
|
}
|
2014-07-16 16:27:00 -06:00
|
|
|
pm_release_ib(&dqm->packets);
|
|
|
|
dqm->active_runlist = false;
|
|
|
|
|
|
|
|
out:
|
|
|
|
if (lock)
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int execute_queues_cpsch(struct device_queue_manager *dqm, bool lock)
|
|
|
|
{
|
|
|
|
int retval;
|
|
|
|
|
|
|
|
BUG_ON(!dqm);
|
|
|
|
|
|
|
|
if (lock)
|
|
|
|
mutex_lock(&dqm->lock);
|
|
|
|
|
2015-05-20 04:43:04 -06:00
|
|
|
retval = destroy_queues_cpsch(dqm, false, false);
|
2014-07-16 16:27:00 -06:00
|
|
|
if (retval != 0) {
|
|
|
|
pr_err("kfd: the cp might be in an unrecoverable state due to an unsuccessful queues preemption");
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dqm->queue_count <= 0 || dqm->processes_count <= 0) {
|
|
|
|
retval = 0;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dqm->active_runlist) {
|
|
|
|
retval = 0;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
retval = pm_send_runlist(&dqm->packets, &dqm->queues);
|
|
|
|
if (retval != 0) {
|
|
|
|
pr_err("kfd: failed to execute runlist");
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
dqm->active_runlist = true;
|
|
|
|
|
|
|
|
out:
|
|
|
|
if (lock)
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int destroy_queue_cpsch(struct device_queue_manager *dqm,
|
|
|
|
struct qcm_process_device *qpd,
|
|
|
|
struct queue *q)
|
|
|
|
{
|
|
|
|
int retval;
|
|
|
|
struct mqd_manager *mqd;
|
2015-05-20 04:43:04 -06:00
|
|
|
bool preempt_all_queues;
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
BUG_ON(!dqm || !qpd || !q);
|
|
|
|
|
2015-05-20 04:43:04 -06:00
|
|
|
preempt_all_queues = false;
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
retval = 0;
|
|
|
|
|
|
|
|
/* remove queue from list to prevent rescheduling after preemption */
|
|
|
|
mutex_lock(&dqm->lock);
|
2015-05-20 04:43:04 -06:00
|
|
|
|
|
|
|
if (qpd->is_debug) {
|
|
|
|
/*
|
|
|
|
* error, currently we do not allow to destroy a queue
|
|
|
|
* of a currently debugged process
|
|
|
|
*/
|
|
|
|
retval = -EBUSY;
|
|
|
|
goto failed_try_destroy_debugged_queue;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
2015-01-12 05:26:10 -07:00
|
|
|
mqd = dqm->ops.get_mqd_manager(dqm,
|
2015-01-03 13:12:32 -07:00
|
|
|
get_mqd_type_from_queue_type(q->properties.type));
|
2014-07-16 16:27:00 -06:00
|
|
|
if (!mqd) {
|
|
|
|
retval = -ENOMEM;
|
|
|
|
goto failed;
|
|
|
|
}
|
|
|
|
|
2015-01-03 13:12:32 -07:00
|
|
|
if (q->properties.type == KFD_QUEUE_TYPE_SDMA)
|
|
|
|
dqm->sdma_queue_count--;
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
list_del(&q->list);
|
2015-01-19 15:08:14 -07:00
|
|
|
if (q->properties.is_active)
|
|
|
|
dqm->queue_count--;
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
execute_queues_cpsch(dqm, false);
|
|
|
|
|
|
|
|
mqd->uninit_mqd(mqd, q->mqd, q->mqd_mem_obj);
|
2015-01-18 04:18:01 -07:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Unconditionally decrement this counter, regardless of the queue's
|
|
|
|
* type
|
|
|
|
*/
|
|
|
|
dqm->total_queue_count--;
|
|
|
|
pr_debug("Total of %d queues are accountable so far\n",
|
|
|
|
dqm->total_queue_count);
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
failed:
|
2015-05-20 04:43:04 -06:00
|
|
|
failed_try_destroy_debugged_queue:
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Low bits must be 0000/FFFF as required by HW, high bits must be 0 to
|
|
|
|
* stay in user mode.
|
|
|
|
*/
|
|
|
|
#define APE1_FIXED_BITS_MASK 0xFFFF80000000FFFFULL
|
|
|
|
/* APE1 limit is inclusive and 64K aligned. */
|
|
|
|
#define APE1_LIMIT_ALIGNMENT 0xFFFF
|
|
|
|
|
|
|
|
static bool set_cache_memory_policy(struct device_queue_manager *dqm,
|
|
|
|
struct qcm_process_device *qpd,
|
|
|
|
enum cache_policy default_policy,
|
|
|
|
enum cache_policy alternate_policy,
|
|
|
|
void __user *alternate_aperture_base,
|
|
|
|
uint64_t alternate_aperture_size)
|
|
|
|
{
|
2015-01-12 05:28:46 -07:00
|
|
|
bool retval;
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
pr_debug("kfd: In func %s\n", __func__);
|
|
|
|
|
|
|
|
mutex_lock(&dqm->lock);
|
|
|
|
|
|
|
|
if (alternate_aperture_size == 0) {
|
|
|
|
/* base > limit disables APE1 */
|
|
|
|
qpd->sh_mem_ape1_base = 1;
|
|
|
|
qpd->sh_mem_ape1_limit = 0;
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* In FSA64, APE1_Base[63:0] = { 16{SH_MEM_APE1_BASE[31]},
|
|
|
|
* SH_MEM_APE1_BASE[31:0], 0x0000 }
|
|
|
|
* APE1_Limit[63:0] = { 16{SH_MEM_APE1_LIMIT[31]},
|
|
|
|
* SH_MEM_APE1_LIMIT[31:0], 0xFFFF }
|
|
|
|
* Verify that the base and size parameters can be
|
|
|
|
* represented in this format and convert them.
|
|
|
|
* Additionally restrict APE1 to user-mode addresses.
|
|
|
|
*/
|
|
|
|
|
|
|
|
uint64_t base = (uintptr_t)alternate_aperture_base;
|
|
|
|
uint64_t limit = base + alternate_aperture_size - 1;
|
|
|
|
|
|
|
|
if (limit <= base)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if ((base & APE1_FIXED_BITS_MASK) != 0)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if ((limit & APE1_FIXED_BITS_MASK) != APE1_LIMIT_ALIGNMENT)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
qpd->sh_mem_ape1_base = base >> 16;
|
|
|
|
qpd->sh_mem_ape1_limit = limit >> 16;
|
|
|
|
}
|
|
|
|
|
2015-01-12 05:28:46 -07:00
|
|
|
retval = dqm->ops_asic_specific.set_cache_memory_policy(
|
|
|
|
dqm,
|
|
|
|
qpd,
|
|
|
|
default_policy,
|
|
|
|
alternate_policy,
|
|
|
|
alternate_aperture_base,
|
|
|
|
alternate_aperture_size);
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
if ((sched_policy == KFD_SCHED_POLICY_NO_HWS) && (qpd->vmid != 0))
|
|
|
|
program_sh_mem_settings(dqm, qpd);
|
|
|
|
|
|
|
|
pr_debug("kfd: sh_mem_config: 0x%x, ape1_base: 0x%x, ape1_limit: 0x%x\n",
|
|
|
|
qpd->sh_mem_config, qpd->sh_mem_ape1_base,
|
|
|
|
qpd->sh_mem_ape1_limit);
|
|
|
|
|
|
|
|
mutex_unlock(&dqm->lock);
|
2015-01-12 05:28:46 -07:00
|
|
|
return retval;
|
2014-07-16 16:27:00 -06:00
|
|
|
|
|
|
|
out:
|
|
|
|
mutex_unlock(&dqm->lock);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev)
|
|
|
|
{
|
|
|
|
struct device_queue_manager *dqm;
|
|
|
|
|
|
|
|
BUG_ON(!dev);
|
|
|
|
|
2015-01-12 05:28:46 -07:00
|
|
|
pr_debug("kfd: loading device queue manager\n");
|
|
|
|
|
2014-07-16 16:27:00 -06:00
|
|
|
dqm = kzalloc(sizeof(struct device_queue_manager), GFP_KERNEL);
|
|
|
|
if (!dqm)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
dqm->dev = dev;
|
|
|
|
switch (sched_policy) {
|
|
|
|
case KFD_SCHED_POLICY_HWS:
|
|
|
|
case KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION:
|
|
|
|
/* initialize dqm for cp scheduling */
|
2015-01-12 05:26:10 -07:00
|
|
|
dqm->ops.create_queue = create_queue_cpsch;
|
|
|
|
dqm->ops.initialize = initialize_cpsch;
|
|
|
|
dqm->ops.start = start_cpsch;
|
|
|
|
dqm->ops.stop = stop_cpsch;
|
|
|
|
dqm->ops.destroy_queue = destroy_queue_cpsch;
|
|
|
|
dqm->ops.update_queue = update_queue;
|
|
|
|
dqm->ops.get_mqd_manager = get_mqd_manager_nocpsch;
|
|
|
|
dqm->ops.register_process = register_process_nocpsch;
|
|
|
|
dqm->ops.unregister_process = unregister_process_nocpsch;
|
|
|
|
dqm->ops.uninitialize = uninitialize_nocpsch;
|
|
|
|
dqm->ops.create_kernel_queue = create_kernel_queue_cpsch;
|
|
|
|
dqm->ops.destroy_kernel_queue = destroy_kernel_queue_cpsch;
|
|
|
|
dqm->ops.set_cache_memory_policy = set_cache_memory_policy;
|
2014-07-16 16:27:00 -06:00
|
|
|
break;
|
|
|
|
case KFD_SCHED_POLICY_NO_HWS:
|
|
|
|
/* initialize dqm for no cp scheduling */
|
2015-01-12 05:26:10 -07:00
|
|
|
dqm->ops.start = start_nocpsch;
|
|
|
|
dqm->ops.stop = stop_nocpsch;
|
|
|
|
dqm->ops.create_queue = create_queue_nocpsch;
|
|
|
|
dqm->ops.destroy_queue = destroy_queue_nocpsch;
|
|
|
|
dqm->ops.update_queue = update_queue;
|
|
|
|
dqm->ops.get_mqd_manager = get_mqd_manager_nocpsch;
|
|
|
|
dqm->ops.register_process = register_process_nocpsch;
|
|
|
|
dqm->ops.unregister_process = unregister_process_nocpsch;
|
|
|
|
dqm->ops.initialize = initialize_nocpsch;
|
|
|
|
dqm->ops.uninitialize = uninitialize_nocpsch;
|
|
|
|
dqm->ops.set_cache_memory_policy = set_cache_memory_policy;
|
2014-07-16 16:27:00 -06:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
BUG();
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2015-01-12 05:28:46 -07:00
|
|
|
switch (dev->device_info->asic_family) {
|
|
|
|
case CHIP_CARRIZO:
|
|
|
|
device_queue_manager_init_vi(&dqm->ops_asic_specific);
|
2015-01-22 02:15:51 -07:00
|
|
|
break;
|
|
|
|
|
2015-01-12 05:28:46 -07:00
|
|
|
case CHIP_KAVERI:
|
|
|
|
device_queue_manager_init_cik(&dqm->ops_asic_specific);
|
2015-01-22 02:15:51 -07:00
|
|
|
break;
|
2015-01-12 05:28:46 -07:00
|
|
|
}
|
|
|
|
|
2015-01-12 05:26:10 -07:00
|
|
|
if (dqm->ops.initialize(dqm) != 0) {
|
2014-07-16 16:27:00 -06:00
|
|
|
kfree(dqm);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return dqm;
|
|
|
|
}
|
|
|
|
|
|
|
|
void device_queue_manager_uninit(struct device_queue_manager *dqm)
|
|
|
|
{
|
|
|
|
BUG_ON(!dqm);
|
|
|
|
|
2015-01-12 05:26:10 -07:00
|
|
|
dqm->ops.uninitialize(dqm);
|
2014-07-16 16:27:00 -06:00
|
|
|
kfree(dqm);
|
|
|
|
}
|