drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.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 "cik_regs.h"
  26 #include "oss/oss_2_4_sh_mask.h"
  27 #include "gca/gfx_7_2_sh_mask.h"
  28
  29 static bool set_cache_memory_policy_cik(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 int update_qpd_cik(struct device_queue_manager *dqm,
  36                                         struct qcm_process_device *qpd);
  37 static int update_qpd_cik_hawaii(struct device_queue_manager *dqm,
  38                                         struct qcm_process_device *qpd);
  39 static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
  40                                 struct qcm_process_device *qpd);
  41 static void init_sdma_vm_hawaii(struct device_queue_manager *dqm,
  42                                 struct queue *q,
  43                                 struct qcm_process_device *qpd);
  44
  45 void device_queue_manager_init_cik(
  46                 struct device_queue_manager_asic_ops *asic_ops)
  47 {
  48         asic_ops->set_cache_memory_policy = set_cache_memory_policy_cik;
  49         asic_ops->update_qpd = update_qpd_cik;
  50         asic_ops->init_sdma_vm = init_sdma_vm;
  51 }
  52
  53 void device_queue_manager_init_cik_hawaii(
  54                 struct device_queue_manager_asic_ops *asic_ops)
  55 {
  56         asic_ops->set_cache_memory_policy = set_cache_memory_policy_cik;
  57         asic_ops->update_qpd = update_qpd_cik_hawaii;
  58         asic_ops->init_sdma_vm = init_sdma_vm_hawaii;
  59 }
  60
  61 static uint32_t compute_sh_mem_bases_64bit(unsigned int top_address_nybble)
  62 {
  63         /* In 64-bit mode, we can only control the top 3 bits of the LDS,
  64          * scratch and GPUVM apertures.
  65          * The hardware fills in the remaining 59 bits according to the
  66          * following pattern:
  67          * LDS:         X0000000'00000000 - X0000001'00000000 (4GB)
  68          * Scratch:     X0000001'00000000 - X0000002'00000000 (4GB)
  69          * GPUVM:       Y0010000'00000000 - Y0020000'00000000 (1TB)
  70          *
  71          * (where X/Y is the configurable nybble with the low-bit 0)
  72          *
  73          * LDS and scratch will have the same top nybble programmed in the
  74          * top 3 bits of SH_MEM_BASES.PRIVATE_BASE.
  75          * GPUVM can have a different top nybble programmed in the
  76          * top 3 bits of SH_MEM_BASES.SHARED_BASE.
  77          * We don't bother to support different top nybbles
  78          * for LDS/Scratch and GPUVM.
  79          */
  80
  81         WARN_ON((top_address_nybble & 1) || top_address_nybble > 0xE ||
  82                 top_address_nybble == 0);
  83
  84         return PRIVATE_BASE(top_address_nybble << 12) |
  85                         SHARED_BASE(top_address_nybble << 12);
  86 }
  87
  88 static bool set_cache_memory_policy_cik(struct device_queue_manager *dqm,
  89                                    struct qcm_process_device *qpd,
  90                                    enum cache_policy default_policy,
  91                                    enum cache_policy alternate_policy,
  92                                    void __user *alternate_aperture_base,
  93                                    uint64_t alternate_aperture_size)
  94 {
  95         uint32_t default_mtype;
  96         uint32_t ape1_mtype;
  97
  98         default_mtype = (default_policy == cache_policy_coherent) ?
  99                         MTYPE_NONCACHED :
 100                         MTYPE_CACHED;
 101
 102         ape1_mtype = (alternate_policy == cache_policy_coherent) ?
 103                         MTYPE_NONCACHED :
 104                         MTYPE_CACHED;
 105
 106         qpd->sh_mem_config = (qpd->sh_mem_config & PTR32)
 107                         | ALIGNMENT_MODE(SH_MEM_ALIGNMENT_MODE_UNALIGNED)
 108                         | DEFAULT_MTYPE(default_mtype)
 109                         | APE1_MTYPE(ape1_mtype);
 110
 111         return true;
 112 }
 113
 114 static int update_qpd_cik(struct device_queue_manager *dqm,
 115                 struct qcm_process_device *qpd)
 116 {
 117         struct kfd_process_device *pdd;
 118         unsigned int temp;
 119
 120         pdd = qpd_to_pdd(qpd);
 121
 122         /* check if sh_mem_config register already configured */
 123         if (qpd->sh_mem_config == 0) {
 124                 qpd->sh_mem_config =
 125                         ALIGNMENT_MODE(SH_MEM_ALIGNMENT_MODE_UNALIGNED) |
 126                         DEFAULT_MTYPE(MTYPE_NONCACHED) |
 127                         APE1_MTYPE(MTYPE_NONCACHED);
 128                 qpd->sh_mem_ape1_limit = 0;
 129                 qpd->sh_mem_ape1_base = 0;
 130         }
 131
 132         if (qpd->pqm->process->is_32bit_user_mode) {
 133                 temp = get_sh_mem_bases_32(pdd);
 134                 qpd->sh_mem_bases = SHARED_BASE(temp);
 135                 qpd->sh_mem_config |= PTR32;
 136         } else {
 137                 temp = get_sh_mem_bases_nybble_64(pdd);
 138                 qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp);
 139                 qpd->sh_mem_config |= 1  << SH_MEM_CONFIG__PRIVATE_ATC__SHIFT;
 140         }
 141
 142         pr_debug("is32bit process: %d sh_mem_bases nybble: 0x%X and register 0x%X\n",
 143                 qpd->pqm->process->is_32bit_user_mode, temp, qpd->sh_mem_bases);
 144
 145         return 0;
 146 }
 147
 148 static int update_qpd_cik_hawaii(struct device_queue_manager *dqm,
 149                 struct qcm_process_device *qpd)
 150 {
 151         struct kfd_process_device *pdd;
 152         unsigned int temp;
 153
 154         pdd = qpd_to_pdd(qpd);
 155
 156         /* check if sh_mem_config register already configured */
 157         if (qpd->sh_mem_config == 0) {
 158                 qpd->sh_mem_config =
 159                         ALIGNMENT_MODE(SH_MEM_ALIGNMENT_MODE_UNALIGNED) |
 160                         DEFAULT_MTYPE(MTYPE_NONCACHED) |
 161                         APE1_MTYPE(MTYPE_NONCACHED);
 162                 qpd->sh_mem_ape1_limit = 0;
 163                 qpd->sh_mem_ape1_base = 0;
 164         }
 165
 166         /* On dGPU we're always in GPUVM64 addressing mode with 64-bit
 167          * aperture addresses.
 168          */
 169         temp = get_sh_mem_bases_nybble_64(pdd);
 170         qpd->sh_mem_bases = compute_sh_mem_bases_64bit(temp);
 171
 172         pr_debug("is32bit process: %d sh_mem_bases nybble: 0x%X and register 0x%X\n",
 173                 qpd->pqm->process->is_32bit_user_mode, temp, qpd->sh_mem_bases);
 174
 175         return 0;
 176 }
 177
 178 static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q,
 179                                 struct qcm_process_device *qpd)
 180 {
 181         uint32_t value = (1 << SDMA0_RLC0_VIRTUAL_ADDR__ATC__SHIFT);
 182
 183         if (q->process->is_32bit_user_mode)
 184                 value |= (1 << SDMA0_RLC0_VIRTUAL_ADDR__PTR32__SHIFT) |
 185                                 get_sh_mem_bases_32(qpd_to_pdd(qpd));
 186         else
 187                 value |= ((get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd))) <<
 188                                 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE__SHIFT) &
 189                                 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE_MASK;
 190
 191         q->properties.sdma_vm_addr = value;
 192 }
 193
 194 static void init_sdma_vm_hawaii(struct device_queue_manager *dqm,
 195                                 struct queue *q,
 196                                 struct qcm_process_device *qpd)
 197 {
 198         /* On dGPU we're always in GPUVM64 addressing mode with 64-bit
 199          * aperture addresses.
 200          */
 201         q->properties.sdma_vm_addr =
 202                 ((get_sh_mem_bases_nybble_64(qpd_to_pdd(qpd))) <<
 203                  SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE__SHIFT) &
 204                 SDMA0_RLC0_VIRTUAL_ADDR__SHARED_BASE_MASK;
 205 }