drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c

   1 /*
   2  * Copyright 2015 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  * Authors: AMD
  23  *
  24  */
  25 #include "atom.h"
  26 #include "amdgpu.h"
  27 #include "amd_shared.h"
  28 #include <linux/module.h>
  29 #include <linux/moduleparam.h>
  30 #include "amdgpu_pm.h"
  31 #include <drm/amdgpu_drm.h>
  32 #include "amdgpu_powerplay.h"
  33 #include "si_dpm.h"
  34 #include "cik_dpm.h"
  35 #include "vi_dpm.h"
  36
  37 static int amdgpu_create_pp_handle(struct amdgpu_device *adev)
  38 {
  39         struct amd_pp_init pp_init;
  40         struct amd_powerplay *amd_pp;
  41         int ret;
  42
  43         amd_pp = &(adev->powerplay);
  44         pp_init.chip_family = adev->family;
  45         pp_init.chip_id = adev->asic_type;
  46         pp_init.pm_en = (amdgpu_dpm != 0 && !amdgpu_sriov_vf(adev)) ? true : false;
  47         pp_init.feature_mask = amdgpu_pp_feature_mask;
  48         pp_init.device = amdgpu_cgs_create_device(adev);
  49         ret = amd_powerplay_create(&pp_init, &(amd_pp->pp_handle));
  50         if (ret)
  51                 return -EINVAL;
  52         return 0;
  53 }
  54
  55 static int amdgpu_pp_early_init(void *handle)
  56 {
  57         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
  58         struct amd_powerplay *amd_pp;
  59         int ret = 0;
  60
  61         amd_pp = &(adev->powerplay);
  62         adev->pp_enabled = false;
  63         amd_pp->pp_handle = (void *)adev;
  64
  65         switch (adev->asic_type) {
  66         case CHIP_POLARIS11:
  67         case CHIP_POLARIS10:
  68         case CHIP_POLARIS12:
  69         case CHIP_TONGA:
  70         case CHIP_FIJI:
  71         case CHIP_TOPAZ:
  72         case CHIP_CARRIZO:
  73         case CHIP_STONEY:
  74         case CHIP_VEGA10:
  75         case CHIP_RAVEN:
  76                 adev->pp_enabled = true;
  77                 if (amdgpu_create_pp_handle(adev))
  78                         return -EINVAL;
  79                 amd_pp->ip_funcs = &pp_ip_funcs;
  80                 amd_pp->pp_funcs = &pp_dpm_funcs;
  81                 break;
  82         /* These chips don't have powerplay implemenations */
  83 #ifdef CONFIG_DRM_AMDGPU_SI
  84         case CHIP_TAHITI:
  85         case CHIP_PITCAIRN:
  86         case CHIP_VERDE:
  87         case CHIP_OLAND:
  88         case CHIP_HAINAN:
  89                 amd_pp->ip_funcs = &si_dpm_ip_funcs;
  90         break;
  91 #endif
  92 #ifdef CONFIG_DRM_AMDGPU_CIK
  93         case CHIP_BONAIRE:
  94         case CHIP_HAWAII:
  95                 amd_pp->ip_funcs = &ci_dpm_ip_funcs;
  96                 break;
  97         case CHIP_KABINI:
  98         case CHIP_MULLINS:
  99         case CHIP_KAVERI:
 100                 amd_pp->ip_funcs = &kv_dpm_ip_funcs;
 101                 break;
 102 #endif
 103         default:
 104                 ret = -EINVAL;
 105                 break;
 106         }
 107
 108         if (adev->powerplay.ip_funcs->early_init)
 109                 ret = adev->powerplay.ip_funcs->early_init(
 110                                         adev->powerplay.pp_handle);
 111
 112         if (ret == PP_DPM_DISABLED) {
 113                 adev->pm.dpm_enabled = false;
 114                 return 0;
 115         }
 116         return ret;
 117 }
 118
 119
 120 static int amdgpu_pp_late_init(void *handle)
 121 {
 122         int ret = 0;
 123         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 124
 125         if (adev->powerplay.ip_funcs->late_init)
 126                 ret = adev->powerplay.ip_funcs->late_init(
 127                                         adev->powerplay.pp_handle);
 128
 129         if (adev->pp_enabled && adev->pm.dpm_enabled) {
 130                 amdgpu_pm_sysfs_init(adev);
 131                 amdgpu_dpm_dispatch_task(adev, AMD_PP_EVENT_COMPLETE_INIT, NULL, NULL);
 132         }
 133
 134         return ret;
 135 }
 136
 137 static int amdgpu_pp_sw_init(void *handle)
 138 {
 139         int ret = 0;
 140         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 141
 142         if (adev->powerplay.ip_funcs->sw_init)
 143                 ret = adev->powerplay.ip_funcs->sw_init(
 144                                         adev->powerplay.pp_handle);
 145
 146         return ret;
 147 }
 148
 149 static int amdgpu_pp_sw_fini(void *handle)
 150 {
 151         int ret = 0;
 152         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 153
 154         if (adev->powerplay.ip_funcs->sw_fini)
 155                 ret = adev->powerplay.ip_funcs->sw_fini(
 156                                         adev->powerplay.pp_handle);
 157         if (ret)
 158                 return ret;
 159
 160         return ret;
 161 }
 162
 163 static int amdgpu_pp_hw_init(void *handle)
 164 {
 165         int ret = 0;
 166         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 167
 168         if (adev->pp_enabled && adev->firmware.load_type == AMDGPU_FW_LOAD_SMU)
 169                 amdgpu_ucode_init_bo(adev);
 170
 171         if (adev->powerplay.ip_funcs->hw_init)
 172                 ret = adev->powerplay.ip_funcs->hw_init(
 173                                         adev->powerplay.pp_handle);
 174
 175         if (ret == PP_DPM_DISABLED) {
 176                 adev->pm.dpm_enabled = false;
 177                 return 0;
 178         }
 179
 180         if ((amdgpu_dpm != 0) && !amdgpu_sriov_vf(adev))
 181                 adev->pm.dpm_enabled = true;
 182
 183         return ret;
 184 }
 185
 186 static int amdgpu_pp_hw_fini(void *handle)
 187 {
 188         int ret = 0;
 189         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 190
 191         if (adev->powerplay.ip_funcs->hw_fini)
 192                 ret = adev->powerplay.ip_funcs->hw_fini(
 193                                         adev->powerplay.pp_handle);
 194
 195         if (adev->pp_enabled && adev->firmware.load_type == AMDGPU_FW_LOAD_SMU)
 196                 amdgpu_ucode_fini_bo(adev);
 197
 198         return ret;
 199 }
 200
 201 static void amdgpu_pp_late_fini(void *handle)
 202 {
 203         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 204
 205         if (adev->powerplay.ip_funcs->late_fini)
 206                 adev->powerplay.ip_funcs->late_fini(
 207                           adev->powerplay.pp_handle);
 208
 209         if (adev->pp_enabled && adev->pm.dpm_enabled)
 210                 amdgpu_pm_sysfs_fini(adev);
 211
 212         amd_powerplay_destroy(adev->powerplay.pp_handle);
 213 }
 214
 215 static int amdgpu_pp_suspend(void *handle)
 216 {
 217         int ret = 0;
 218         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 219
 220         if (adev->powerplay.ip_funcs->suspend)
 221                 ret = adev->powerplay.ip_funcs->suspend(
 222                                          adev->powerplay.pp_handle);
 223         return ret;
 224 }
 225
 226 static int amdgpu_pp_resume(void *handle)
 227 {
 228         int ret = 0;
 229         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 230
 231         if (adev->powerplay.ip_funcs->resume)
 232                 ret = adev->powerplay.ip_funcs->resume(
 233                                         adev->powerplay.pp_handle);
 234         return ret;
 235 }
 236
 237 static int amdgpu_pp_set_clockgating_state(void *handle,
 238                                         enum amd_clockgating_state state)
 239 {
 240         int ret = 0;
 241         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 242
 243         if (adev->powerplay.ip_funcs->set_clockgating_state)
 244                 ret = adev->powerplay.ip_funcs->set_clockgating_state(
 245                                 adev->powerplay.pp_handle, state);
 246         return ret;
 247 }
 248
 249 static int amdgpu_pp_set_powergating_state(void *handle,
 250                                         enum amd_powergating_state state)
 251 {
 252         int ret = 0;
 253         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 254
 255         if (adev->powerplay.ip_funcs->set_powergating_state)
 256                 ret = adev->powerplay.ip_funcs->set_powergating_state(
 257                                  adev->powerplay.pp_handle, state);
 258         return ret;
 259 }
 260
 261
 262 static bool amdgpu_pp_is_idle(void *handle)
 263 {
 264         bool ret = true;
 265         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 266
 267         if (adev->powerplay.ip_funcs->is_idle)
 268                 ret = adev->powerplay.ip_funcs->is_idle(
 269                                         adev->powerplay.pp_handle);
 270         return ret;
 271 }
 272
 273 static int amdgpu_pp_wait_for_idle(void *handle)
 274 {
 275         int ret = 0;
 276         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 277
 278         if (adev->powerplay.ip_funcs->wait_for_idle)
 279                 ret = adev->powerplay.ip_funcs->wait_for_idle(
 280                                         adev->powerplay.pp_handle);
 281         return ret;
 282 }
 283
 284 static int amdgpu_pp_soft_reset(void *handle)
 285 {
 286         int ret = 0;
 287         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 288
 289         if (adev->powerplay.ip_funcs->soft_reset)
 290                 ret = adev->powerplay.ip_funcs->soft_reset(
 291                                         adev->powerplay.pp_handle);
 292         return ret;
 293 }
 294
 295 static const struct amd_ip_funcs amdgpu_pp_ip_funcs = {
 296         .name = "amdgpu_powerplay",
 297         .early_init = amdgpu_pp_early_init,
 298         .late_init = amdgpu_pp_late_init,
 299         .sw_init = amdgpu_pp_sw_init,
 300         .sw_fini = amdgpu_pp_sw_fini,
 301         .hw_init = amdgpu_pp_hw_init,
 302         .hw_fini = amdgpu_pp_hw_fini,
 303         .late_fini = amdgpu_pp_late_fini,
 304         .suspend = amdgpu_pp_suspend,
 305         .resume = amdgpu_pp_resume,
 306         .is_idle = amdgpu_pp_is_idle,
 307         .wait_for_idle = amdgpu_pp_wait_for_idle,
 308         .soft_reset = amdgpu_pp_soft_reset,
 309         .set_clockgating_state = amdgpu_pp_set_clockgating_state,
 310         .set_powergating_state = amdgpu_pp_set_powergating_state,
 311 };
 312
 313 const struct amdgpu_ip_block_version amdgpu_pp_ip_block =
 314 {
 315         .type = AMD_IP_BLOCK_TYPE_SMC,
 316         .major = 1,
 317         .minor = 0,
 318         .rev = 0,
 319         .funcs = &amdgpu_pp_ip_funcs,
 320 };