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

   1/*
   2 * Copyright 2014 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 <linux/printk.h>
  25#include <linux/slab.h>
  26#include <linux/mm_types.h>
  27
  28#include "kfd_priv.h"
  29#include "kfd_mqd_manager.h"
  30#include "vi_structs.h"
  31#include "gca/gfx_8_0_sh_mask.h"
  32#include "gca/gfx_8_0_enum.h"
  33
  34#define CP_MQD_CONTROL__PRIV_STATE__SHIFT 0x8
  35
  36static inline struct vi_mqd *get_mqd(void *mqd)
  37{
  38        return (struct vi_mqd *)mqd;
  39}
  40
  41static int init_mqd(struct mqd_manager *mm, void **mqd,
  42                        struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
  43                        struct queue_properties *q)
  44{
  45        int retval;
  46        uint64_t addr;
  47        struct vi_mqd *m;
  48
  49        retval = kfd_gtt_sa_allocate(mm->dev, sizeof(struct vi_mqd),
  50                        mqd_mem_obj);
  51        if (retval != 0)
  52                return -ENOMEM;
  53
  54        m = (struct vi_mqd *) (*mqd_mem_obj)->cpu_ptr;
  55        addr = (*mqd_mem_obj)->gpu_addr;
  56
  57        memset(m, 0, sizeof(struct vi_mqd));
  58
  59        m->header = 0xC0310800;
  60        m->compute_pipelinestat_enable = 1;
  61        m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
  62        m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
  63        m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
  64        m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
  65
  66        m->cp_hqd_persistent_state = CP_HQD_PERSISTENT_STATE__PRELOAD_REQ_MASK |
  67                        0x53 << CP_HQD_PERSISTENT_STATE__PRELOAD_SIZE__SHIFT;
  68
  69        m->cp_mqd_control = 1 << CP_MQD_CONTROL__PRIV_STATE__SHIFT |
  70                        MTYPE_UC << CP_MQD_CONTROL__MTYPE__SHIFT;
  71
  72        m->cp_mqd_base_addr_lo        = lower_32_bits(addr);
  73        m->cp_mqd_base_addr_hi        = upper_32_bits(addr);
  74
  75        m->cp_hqd_quantum = 1 << CP_HQD_QUANTUM__QUANTUM_EN__SHIFT |
  76                        1 << CP_HQD_QUANTUM__QUANTUM_SCALE__SHIFT |
  77                        10 << CP_HQD_QUANTUM__QUANTUM_DURATION__SHIFT;
  78
  79        m->cp_hqd_pipe_priority = 1;
  80        m->cp_hqd_queue_priority = 15;
  81
  82        m->cp_hqd_eop_rptr = 1 << CP_HQD_EOP_RPTR__INIT_FETCHER__SHIFT;
  83
  84        if (q->format == KFD_QUEUE_FORMAT_AQL)
  85                m->cp_hqd_iq_rptr = 1;
  86
  87        *mqd = m;
  88        if (gart_addr != NULL)
  89                *gart_addr = addr;
  90        retval = mm->update_mqd(mm, m, q);
  91
  92        return retval;
  93}
  94
  95static int load_mqd(struct mqd_manager *mm, void *mqd,
  96                        uint32_t pipe_id, uint32_t queue_id,
  97                        uint32_t __user *wptr)
  98{
  99        return mm->dev->kfd2kgd->hqd_load
 100                (mm->dev->kgd, mqd, pipe_id, queue_id, wptr);
 101}
 102
 103static int __update_mqd(struct mqd_manager *mm, void *mqd,
 104                        struct queue_properties *q, unsigned int mtype,
 105                        unsigned int atc_bit)
 106{
 107        struct vi_mqd *m;
 108
 109        BUG_ON(!mm || !q || !mqd);
 110
 111        pr_debug("kfd: In func %s\n", __func__);
 112
 113        m = get_mqd(mqd);
 114
 115        m->cp_hqd_pq_control = 5 << CP_HQD_PQ_CONTROL__RPTR_BLOCK_SIZE__SHIFT |
 116                        atc_bit << CP_HQD_PQ_CONTROL__PQ_ATC__SHIFT |
 117                        mtype << CP_HQD_PQ_CONTROL__MTYPE__SHIFT;
 118        m->cp_hqd_pq_control |=
 119                        ffs(q->queue_size / sizeof(unsigned int)) - 1 - 1;
 120        pr_debug("kfd: cp_hqd_pq_control 0x%x\n", m->cp_hqd_pq_control);
 121
 122        m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
 123        m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
 124
 125        m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
 126        m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
 127
 128        m->cp_hqd_pq_doorbell_control =
 129                1 << CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_EN__SHIFT |
 130                q->doorbell_off <<
 131                        CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT;
 132        pr_debug("kfd: cp_hqd_pq_doorbell_control 0x%x\n",
 133                        m->cp_hqd_pq_doorbell_control);
 134
 135        m->cp_hqd_eop_control = atc_bit << CP_HQD_EOP_CONTROL__EOP_ATC__SHIFT |
 136                        mtype << CP_HQD_EOP_CONTROL__MTYPE__SHIFT;
 137
 138        m->cp_hqd_ib_control = atc_bit << CP_HQD_IB_CONTROL__IB_ATC__SHIFT |
 139                        3 << CP_HQD_IB_CONTROL__MIN_IB_AVAIL_SIZE__SHIFT |
 140                        mtype << CP_HQD_IB_CONTROL__MTYPE__SHIFT;
 141
 142        m->cp_hqd_eop_control |=
 143                ffs(q->eop_ring_buffer_size / sizeof(unsigned int)) - 1 - 1;
 144        m->cp_hqd_eop_base_addr_lo =
 145                        lower_32_bits(q->eop_ring_buffer_address >> 8);
 146        m->cp_hqd_eop_base_addr_hi =
 147                        upper_32_bits(q->eop_ring_buffer_address >> 8);
 148
 149        m->cp_hqd_iq_timer = atc_bit << CP_HQD_IQ_TIMER__IQ_ATC__SHIFT |
 150                        mtype << CP_HQD_IQ_TIMER__MTYPE__SHIFT;
 151
 152        m->cp_hqd_vmid = q->vmid;
 153
 154        if (q->format == KFD_QUEUE_FORMAT_AQL) {
 155                m->cp_hqd_pq_control |= CP_HQD_PQ_CONTROL__NO_UPDATE_RPTR_MASK |
 156                                2 << CP_HQD_PQ_CONTROL__SLOT_BASED_WPTR__SHIFT;
 157        }
 158
 159        m->cp_hqd_active = 0;
 160        q->is_active = false;
 161        if (q->queue_size > 0 &&
 162                        q->queue_address != 0 &&
 163                        q->queue_percent > 0) {
 164                m->cp_hqd_active = 1;
 165                q->is_active = true;
 166        }
 167
 168        return 0;
 169}
 170
 171
 172static int update_mqd(struct mqd_manager *mm, void *mqd,
 173                        struct queue_properties *q)
 174{
 175        return __update_mqd(mm, mqd, q, MTYPE_CC, 1);
 176}
 177
 178static int destroy_mqd(struct mqd_manager *mm, void *mqd,
 179                        enum kfd_preempt_type type,
 180                        unsigned int timeout, uint32_t pipe_id,
 181                        uint32_t queue_id)
 182{
 183        return mm->dev->kfd2kgd->hqd_destroy
 184                (mm->dev->kgd, type, timeout,
 185                pipe_id, queue_id);
 186}
 187
 188static void uninit_mqd(struct mqd_manager *mm, void *mqd,
 189                        struct kfd_mem_obj *mqd_mem_obj)
 190{
 191        BUG_ON(!mm || !mqd);
 192        kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
 193}
 194
 195static bool is_occupied(struct mqd_manager *mm, void *mqd,
 196                        uint64_t queue_address, uint32_t pipe_id,
 197                        uint32_t queue_id)
 198{
 199        return mm->dev->kfd2kgd->hqd_is_occupied(
 200                mm->dev->kgd, queue_address,
 201                pipe_id, queue_id);
 202}
 203
 204static int init_mqd_hiq(struct mqd_manager *mm, void **mqd,
 205                        struct kfd_mem_obj **mqd_mem_obj, uint64_t *gart_addr,
 206                        struct queue_properties *q)
 207{
 208        struct vi_mqd *m;
 209        int retval = init_mqd(mm, mqd, mqd_mem_obj, gart_addr, q);
 210
 211        if (retval != 0)
 212                return retval;
 213
 214        m = get_mqd(*mqd);
 215
 216        m->cp_hqd_pq_control |= 1 << CP_HQD_PQ_CONTROL__PRIV_STATE__SHIFT |
 217                        1 << CP_HQD_PQ_CONTROL__KMD_QUEUE__SHIFT;
 218
 219        return retval;
 220}
 221
 222static int update_mqd_hiq(struct mqd_manager *mm, void *mqd,
 223                        struct queue_properties *q)
 224{
 225        struct vi_mqd *m;
 226        int retval = __update_mqd(mm, mqd, q, MTYPE_UC, 0);
 227
 228        if (retval != 0)
 229                return retval;
 230
 231        m = get_mqd(mqd);
 232        m->cp_hqd_vmid = q->vmid;
 233        return retval;
 234}
 235
 236struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type,
 237                struct kfd_dev *dev)
 238{
 239        struct mqd_manager *mqd;
 240
 241        BUG_ON(!dev);
 242        BUG_ON(type >= KFD_MQD_TYPE_MAX);
 243
 244        pr_debug("kfd: In func %s\n", __func__);
 245
 246        mqd = kzalloc(sizeof(struct mqd_manager), GFP_KERNEL);
 247        if (!mqd)
 248                return NULL;
 249
 250        mqd->dev = dev;
 251
 252        switch (type) {
 253        case KFD_MQD_TYPE_CP:
 254        case KFD_MQD_TYPE_COMPUTE:
 255                mqd->init_mqd = init_mqd;
 256                mqd->uninit_mqd = uninit_mqd;
 257                mqd->load_mqd = load_mqd;
 258                mqd->update_mqd = update_mqd;
 259                mqd->destroy_mqd = destroy_mqd;
 260                mqd->is_occupied = is_occupied;
 261                break;
 262        case KFD_MQD_TYPE_HIQ:
 263                mqd->init_mqd = init_mqd_hiq;
 264                mqd->uninit_mqd = uninit_mqd;
 265                mqd->load_mqd = load_mqd;
 266                mqd->update_mqd = update_mqd_hiq;
 267                mqd->destroy_mqd = destroy_mqd;
 268                mqd->is_occupied = is_occupied;
 269                break;
 270        case KFD_MQD_TYPE_SDMA:
 271                break;
 272        default:
 273                kfree(mqd);
 274                return NULL;
 275        }
 276
 277        return mqd;
 278}
 279