LXR linux/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager

   1/*
   2 * Copyright 2016-2018 Advanced Micro Devices, Inc.
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 */
  23
  24#include "kfd_device_queue_manager.h"
  25#include "vega10_enum.h"
  26#include "gc/gc_9_0_offset.h"
  27#include "gc/gc_9_0_sh_mask.h"
  28#include "sdma0/sdma0_4_0_sh_mask.h"
  29
  30static int update_qpd_v9(struct device_queue_manager *dqm,
  31                         struct qcm_process_device *qpd);
  32static void init_sdma_vm_v9(struct device_queue_manager *dqm, struct queue *q,
  33                            struct qcm_process_device *qpd);
  34
  35void device_queue_manager_init_v9(
  36        struct device_queue_manager_asic_ops *asic_ops)
  37{
  38        asic_ops->update_qpd = update_qpd_v9;
  39        asic_ops->init_sdma_vm = init_sdma_vm_v9;
  40        asic_ops->mqd_manager_init = mqd_manager_init_v9;
  41}
  42
  43static uint32_t compute_sh_mem_bases_64bit(struct kfd_process_device *pdd)
  44{
  45        uint32_t shared_base = pdd->lds_base >> 48;
  46        uint32_t private_base = pdd->scratch_base >> 48;
  47
  48        return (shared_base << SH_MEM_BASES__SHARED_BASE__SHIFT) |
  49                private_base;
  50}
  51
  52static int update_qpd_v9(struct device_queue_manager *dqm,
  53                         struct qcm_process_device *qpd)
  54{
  55        struct kfd_process_device *pdd;
  56
  57        pdd = qpd_to_pdd(qpd);
  58
  59        /* check if sh_mem_config register already configured */
  60        if (qpd->sh_mem_config == 0) {
  61                qpd->sh_mem_config =
  62                                SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
  63                                        SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT;
  64
  65                if (dqm->dev->device_info->asic_family == CHIP_ALDEBARAN) {
  66                        /* Aldebaran can safely support different XNACK modes
  67                         * per process
  68                         */
  69                        if (!pdd->process->xnack_enabled)
  70                                qpd->sh_mem_config |=
  71                                        1 << SH_MEM_CONFIG__RETRY_DISABLE__SHIFT;
  72                } else if (dqm->dev->noretry &&
  73                           !dqm->dev->use_iommu_v2) {
  74                        qpd->sh_mem_config |=
  75                                1 << SH_MEM_CONFIG__RETRY_DISABLE__SHIFT;
  76                }
  77
  78                qpd->sh_mem_ape1_limit = 0;
  79                qpd->sh_mem_ape1_base = 0;
  80        }
  81
  82        qpd->sh_mem_bases = compute_sh_mem_bases_64bit(pdd);
  83
  84        pr_debug("sh_mem_bases 0x%X\n", qpd->sh_mem_bases);
  85
  86        return 0;
  87}
  88
  89static void init_sdma_vm_v9(struct device_queue_manager *dqm, struct queue *q,
  90                            struct qcm_process_device *qpd)
  91{
  92        /* Not needed on SDMAv4 any more */
  93        q->properties.sdma_vm_addr = 0;
  94}
  95