drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c

   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 "kfd_device_queue_manager.h"
  25 #include "gca/gfx_8_0_enum.h"
  26 #include "gca/gfx_8_0_sh_mask.h"
  27 #include "oss/oss_3_0_sh_mask.h"
  28
  29 static bool set_cache_memory_policy_vi(struct device_queue_manager *dqm,
  30                                    struct qcm_process_device *qpd,
  31                                    enum cache_policy default_policy,
  32                                    enum cache_policy alternate_policy,
  33                                    void __user *alternate_aperture_base,
  34                                    uint64_t alternate_aperture_size);
  35 static bool set_cache_memory_policy_vi_tonga(struct device_queue_manager *dqm,
  36                         struct qcm_process_device *qpd,
  37                         enum cache_policy default_policy,
  38                         enum cache_policy alternate_policy,
  39                         void __user *alternate_aperture_base,
  40                         uint64_t alternate_aperture_size);
  41 static int update_qpd_vi(struct device_queue_manager *dqm,
  42                                         struct qcm_process_device *qpd);
  43 static int update_qpd_vi_tonga(struct device_queue_manager *dqm,
  44                         struct qcm_process_device *qpd);
  45 static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
  46                                 struct qcm_process_device *qpd);
  47 static void init_sdma_vm_tonga(struct device_queue_manager *dqm,
  48                         struct queue *q,
  49                         struct qcm_process_device *qpd);
  50
  51 void device_queue_manager_init_vi(
  52                 struct device_queue_manager_asic_ops *asic_ops)
  53 {
  54         asic_ops->set_cache_memory_policy = set_cache_memory_policy_vi;
  55         asic_ops->update_qpd = update_qpd_vi;
  56         asic_ops->init_sdma_vm = init_sdma_vm;
  57 }
  58
  59 void device_queue_manager_init_vi_tonga(
  60                 struct device_queue_manager_asic_ops *asic_ops)
  61 {
  62         asic_ops->set_cache_memory_policy = set_cache_memory_policy_vi_tonga;
  63         asic_ops->update_qpd = update_qpd_vi_tonga;
  64         asic_ops->init_sdma_vm = init_sdma_vm_tonga;
  65 }
  66
  67 static uint32_t compute_sh_mem_bases_64bit(unsigned int top_address_nybble)
  68 {
  69         /* In 64-bit mode, we can only control the top 3 bits of the LDS,
  70          * scratch and GPUVM apertures.
  71          * The hardware fills in the remaining 59 bits according to the
  72          * following pattern:
  73          * LDS:         X0000000'00000000 - X0000001'00000000 (4GB)
  74          * Scratch:     X0000001'00000000 - X0000002'00000000 (4GB)
  75          * GPUVM:       Y0010000'00000000 - Y0020000'00000000 (1TB)
  76          *
  77          * (where X/Y is the configurable nybble with the low-bit 0)
  78          *
  79          * LDS and scratch will have the same top nybble programmed in the
  80          * top 3 bits of SH_MEM_BASES.PRIVATE_BASE.
  81          * GPUVM can have a different top nybble programmed in the
  82          * top 3 bits of SH_MEM_BASES.SHARED_BASE.
  83          * We don't bother to support different top nybbles
  84          * for LDS/Scratch and GPUVM.
  85          */
  86
  87         WARN_ON((top_address_nybble & 1) || top_address_nybble > 0xE ||
  88                 top_address_nybble == 0);
  89
  90         return top_address_nybble << 12 |
  91                         (top_address_nybble << 12) <<
  92                         SH_MEM_BASES__SHARED_BASE__SHIFT;
  93 }
  94
  95 static bool set_cache_memory_policy_vi(struct device_queue_manager *dqm,
  96                                    struct qcm_process_device *qpd,
  97                                    enum cache_policy default_policy,
  98                                    enum cache_policy alternate_policy,
  99                                    void __user *alternate_aperture_base,
 100                                    uint64_t alternate_aperture_size)
 101 {
 102         uint32_t default_mtype;
 103         uint32_t ape1_mtype;
 104
 105         default_mtype = (default_policy == cache_policy_coherent) ?
 106                         MTYPE_CC :
 107                         MTYPE_NC;
 108
 109         ape1_mtype = (alternate_policy == cache_policy_coherent) ?
 110                         MTYPE_CC :
 111                         MTYPE_NC;
 112
 113         qpd->sh_mem_config = (qpd->sh_mem_config &
 114                         SH_MEM_CONFIG__ADDRESS_MODE_MASK) |
 115                 SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
 116                                 SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT |
 117                 default_mtype << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT |
 118                 ape1_mtype << SH_MEM_CONFIG__APE1_MTYPE__SHIFT |
 119                 SH_MEM_CONFIG__PRIVATE_ATC_MASK;
 120
 121         return true;
 122 }
 123
 124 static bool set_cache_memory_policy_vi_tonga(struct device_queue_manager *dqm,
 125                 struct qcm_process_device *qpd,
 126                 enum cache_policy default_policy,
 127                 enum cache_policy alternate_policy,
 128                 void __user *alternate_aperture_base,
 129                 uint64_t alternate_aperture_size)
 130 {
 131         uint32_t default_mtype;
 132         uint32_t ape1_mtype;
 133
 134         default_mtype = (default_policy == cache_policy_coherent) ?
 135                         MTYPE_UC :
 136                         MTYPE_NC;
 137
 138         ape1_mtype = (alternate_policy == cache_policy_coherent) ?
 139                         MTYPE_UC :
 140                         MTYPE_NC;
 141
 142         qpd->sh_mem_config =
 143                         SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
 144                                    SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT |
 145                         default_mtype << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT |
 146                         ape1_mtype << SH_MEM_CONFIG__APE1_MTYPE__SHIFT;
 147
 148         return true;
 149 }
 150
 151 static int update_qpd_vi(struct device_queue_manager *dqm,
 152                                         struct qcm_process_device *qpd)
 153 {
 154         struct kfd_process_device *pdd;
 155         unsigned int temp;
 156
 157         pdd = qpd_to_pdd(qpd);
 158
 159         /* check if sh_mem_config register already configured */
 160         if (qpd->sh_mem_config == 0) {
 161                 qpd->sh_mem_config =
 162                         SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
 163                                 SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT |
 164                         MTYPE_CC << SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT |
 165                         MTYPE_CC << SH_MEM_CONFIG__APE1_MTYPE__SHIFT |
 166                         SH_MEM_CONFIG__PRIVATE_ATC_MASK;
 167
 168                 qpd->sh_mem_ape1_limit = 0;
 169                 qpd->sh_mem_ape1_base = 0;
 170         }
 171
 172         if (qpd->pqm->process->is_32bit_user_mode) {
 173                 temp = get_sh_mem_bases_32(pdd);
 174                 qpd->sh_mem_bases = temp << SH_MEM_BASES__SHARED_BASE__SHIFT;
 175                 qpd->sh_mem_config |= SH_MEM_ADDRESS_MODE_HSA32 <<
 176                                         SH_MEM_CONFIG__ADDRESS_MODE__SHIFT;
 177         } else {
 178                 temp = get_sh_mem_bases_nybble_64(pdd);
 179                 qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp);
 180                 qpd->sh_mem_config |= SH_MEM_ADDRESS_MODE_HSA64 <<
 181                         SH_MEM_CONFIG__ADDRESS_MODE__SHIFT;
 182                 qpd->sh_mem_config |= 1  <<
 183                         SH_MEM_CONFIG__PRIVATE_ATC__SHIFT;
 184         }
 185
 186         pr_debug("is32bit process: %d sh_mem_bases nybble: 0x%X and register 0x%X\n",
 187                 qpd->pqm->process->is_32bit_user_mode, temp, qpd->sh_mem_bases);
 188
 189         return 0;
 190 }
 191
 192 static int update_qpd_vi_tonga(struct device_queue_manager *dqm,
 193                         struct qcm_process_device *qpd)
 194 {
 195         struct kfd_process_device *pdd;
 196         unsigned int temp;
 197
 198         pdd = qpd_to_pdd(qpd);
 199
 200         /* check if sh_mem_config register already configured */
 201         if (qpd->sh_mem_config == 0) {
 202                 qpd->sh_mem_config =
 203                                 SH_MEM_ALIGNMENT_MODE_UNALIGNED <<
 204                                         SH_MEM_CONFIG__ALIGNMENT_MODE__SHIFT |
 205                                 MTYPE_UC <<
 206                                         SH_MEM_CONFIG__DEFAULT_MTYPE__SHIFT |
 207                                 MTYPE_UC <<
 208                                         SH_MEM_CONFIG__APE1_MTYPE__SHIFT;
 209
 210                 qpd->sh_mem_ape1_limit = 0;
 211                 qpd->sh_mem_ape1_base = 0;
 212         }
 213
 214         /* On dGPU we're always in GPUVM64 addressing mode with 64-bit
 215          * aperture addresses.
 216          */
 217         temp = get_sh_mem_bases_nybble_64(pdd);
 218         qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp);
 219
 220         pr_debug("sh_mem_bases nybble: 0x%X and register 0x%X\n",
 221                 temp, qpd->sh_mem_bases);
 222
 223         return 0;
 224 }
 225
 226 static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
 227                                 struct qcm_process_device *qpd)
 228 {
 229         uint32_t value = (1 << SDMA0_RLC0_VIRTUAL_ADDR__ATC__SHIFT);
 230
 231         if (q->process->is_32bit_user_mode)
 232                 value |= (1 << SDMA0_RLC0_VIRTUAL_ADDR__PTR32__SHIFT) |
 233                                 get_sh_mem_bases_32(qpd_to_pdd(qpd));
 234         else
 235                 value |= ((get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd))) <<
 236                                 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE__SHIFT) &
 237                                 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE_MASK;
 238
 239         q->properties.sdma_vm_addr = value;
 240 }
 241
 242 static void init_sdma_vm_tonga(struct device_queue_manager *dqm,
 243                         struct queue *q,
 244                         struct qcm_process_device *qpd)
 245 {
 246         /* On dGPU we're always in GPUVM64 addressing mode with 64-bit
 247          * aperture addresses.
 248          */
 249         q->properties.sdma_vm_addr =
 250                 ((get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd))) <<
 251                  SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE__SHIFT) &
 252                 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE_MASK;
 253 }