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 "cik_dpm.h"
  34 #include "vi_dpm.h"
  35
  36 static int amdgpu_powerplay_init(struct amdgpu_device *adev)
  37 {
  38         int ret = 0;
  39         struct amd_powerplay *amd_pp;
  40
  41         amd_pp = &(adev->powerplay);
  42
  43         if (adev->pp_enabled) {
  44 #ifdef CONFIG_DRM_AMD_POWERPLAY
  45                 struct amd_pp_init *pp_init;
  46
  47                 pp_init = kzalloc(sizeof(struct amd_pp_init), GFP_KERNEL);
  48
  49                 if (pp_init == NULL)
  50                         return -ENOMEM;
  51
  52                 pp_init->chip_family = adev->family;
  53                 pp_init->chip_id = adev->asic_type;
  54                 pp_init->device = amdgpu_cgs_create_device(adev);
  55                 pp_init->powercontainment_enabled = amdgpu_powercontainment;
  56
  57                 ret = amd_powerplay_init(pp_init, amd_pp);
  58                 kfree(pp_init);
  59 #endif
  60         } else {
  61                 amd_pp->pp_handle = (void *)adev;
  62
  63                 switch (adev->asic_type) {
  64 #ifdef CONFIG_DRM_AMDGPU_CIK
  65                 case CHIP_BONAIRE:
  66                 case CHIP_HAWAII:
  67                         amd_pp->ip_funcs = &ci_dpm_ip_funcs;
  68                         break;
  69                 case CHIP_KABINI:
  70                 case CHIP_MULLINS:
  71                 case CHIP_KAVERI:
  72                         amd_pp->ip_funcs = &kv_dpm_ip_funcs;
  73                         break;
  74 #endif
  75                 case CHIP_TOPAZ:
  76                         amd_pp->ip_funcs = &iceland_dpm_ip_funcs;
  77                         break;
  78                 case CHIP_TONGA:
  79                         amd_pp->ip_funcs = &tonga_dpm_ip_funcs;
  80                         break;
  81                 case CHIP_FIJI:
  82                         amd_pp->ip_funcs = &fiji_dpm_ip_funcs;
  83                         break;
  84                 case CHIP_CARRIZO:
  85                 case CHIP_STONEY:
  86                         amd_pp->ip_funcs = &cz_dpm_ip_funcs;
  87                         break;
  88                 default:
  89                         ret = -EINVAL;
  90                         break;
  91                 }
  92         }
  93         return ret;
  94 }
  95
  96 static int amdgpu_pp_early_init(void *handle)
  97 {
  98         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
  99         int ret = 0;
 100
 101 #ifdef CONFIG_DRM_AMD_POWERPLAY
 102         switch (adev->asic_type) {
 103         case CHIP_POLARIS11:
 104         case CHIP_POLARIS10:
 105                 adev->pp_enabled = true;
 106                 break;
 107         case CHIP_TONGA:
 108         case CHIP_FIJI:
 109                 adev->pp_enabled = (amdgpu_powerplay == 0) ? false : true;
 110                 break;
 111         case CHIP_CARRIZO:
 112         case CHIP_STONEY:
 113                 adev->pp_enabled = (amdgpu_powerplay > 0) ? true : false;
 114                 break;
 115         /* These chips don't have powerplay implemenations */
 116         case CHIP_BONAIRE:
 117         case CHIP_HAWAII:
 118         case CHIP_KABINI:
 119         case CHIP_MULLINS:
 120         case CHIP_KAVERI:
 121         case CHIP_TOPAZ:
 122         default:
 123                 adev->pp_enabled = false;
 124                 break;
 125         }
 126 #else
 127         adev->pp_enabled = false;
 128 #endif
 129
 130         ret = amdgpu_powerplay_init(adev);
 131         if (ret)
 132                 return ret;
 133
 134         if (adev->powerplay.ip_funcs->early_init)
 135                 ret = adev->powerplay.ip_funcs->early_init(
 136                                         adev->powerplay.pp_handle);
 137         return ret;
 138 }
 139
 140
 141 static int amdgpu_pp_late_init(void *handle)
 142 {
 143         int ret = 0;
 144         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 145
 146         if (adev->powerplay.ip_funcs->late_init)
 147                 ret = adev->powerplay.ip_funcs->late_init(
 148                                         adev->powerplay.pp_handle);
 149
 150 #ifdef CONFIG_DRM_AMD_POWERPLAY
 151         if (adev->pp_enabled && adev->pm.dpm_enabled) {
 152                 amdgpu_pm_sysfs_init(adev);
 153                 amdgpu_dpm_dispatch_task(adev, AMD_PP_EVENT_COMPLETE_INIT, NULL, NULL);
 154         }
 155 #endif
 156         return ret;
 157 }
 158
 159 static int amdgpu_pp_sw_init(void *handle)
 160 {
 161         int ret = 0;
 162         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 163
 164         if (adev->powerplay.ip_funcs->sw_init)
 165                 ret = adev->powerplay.ip_funcs->sw_init(
 166                                         adev->powerplay.pp_handle);
 167
 168 #ifdef CONFIG_DRM_AMD_POWERPLAY
 169         if (adev->pp_enabled)
 170                 adev->pm.dpm_enabled = true;
 171 #endif
 172
 173         return ret;
 174 }
 175
 176 static int amdgpu_pp_sw_fini(void *handle)
 177 {
 178         int ret = 0;
 179         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 180
 181         if (adev->powerplay.ip_funcs->sw_fini)
 182                 ret = adev->powerplay.ip_funcs->sw_fini(
 183                                         adev->powerplay.pp_handle);
 184         if (ret)
 185                 return ret;
 186
 187         return ret;
 188 }
 189
 190 static int amdgpu_pp_hw_init(void *handle)
 191 {
 192         int ret = 0;
 193         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 194
 195         if (adev->pp_enabled && adev->firmware.smu_load)
 196                 amdgpu_ucode_init_bo(adev);
 197
 198         if (adev->powerplay.ip_funcs->hw_init)
 199                 ret = adev->powerplay.ip_funcs->hw_init(
 200                                         adev->powerplay.pp_handle);
 201
 202         return ret;
 203 }
 204
 205 static int amdgpu_pp_hw_fini(void *handle)
 206 {
 207         int ret = 0;
 208         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 209
 210         if (adev->powerplay.ip_funcs->hw_fini)
 211                 ret = adev->powerplay.ip_funcs->hw_fini(
 212                                         adev->powerplay.pp_handle);
 213
 214         if (adev->pp_enabled && adev->firmware.smu_load)
 215                 amdgpu_ucode_fini_bo(adev);
 216
 217         return ret;
 218 }
 219
 220 static void amdgpu_pp_late_fini(void *handle)
 221 {
 222 #ifdef CONFIG_DRM_AMD_POWERPLAY
 223         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 224
 225         if (adev->pp_enabled) {
 226                 amdgpu_pm_sysfs_fini(adev);
 227                 amd_powerplay_fini(adev->powerplay.pp_handle);
 228         }
 229
 230         if (adev->powerplay.ip_funcs->late_fini)
 231                 adev->powerplay.ip_funcs->late_fini(
 232                           adev->powerplay.pp_handle);
 233 #endif
 234 }
 235
 236 static int amdgpu_pp_suspend(void *handle)
 237 {
 238         int ret = 0;
 239         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 240
 241         if (adev->powerplay.ip_funcs->suspend)
 242                 ret = adev->powerplay.ip_funcs->suspend(
 243                                          adev->powerplay.pp_handle);
 244         return ret;
 245 }
 246
 247 static int amdgpu_pp_resume(void *handle)
 248 {
 249         int ret = 0;
 250         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 251
 252         if (adev->powerplay.ip_funcs->resume)
 253                 ret = adev->powerplay.ip_funcs->resume(
 254                                         adev->powerplay.pp_handle);
 255         return ret;
 256 }
 257
 258 static int amdgpu_pp_set_clockgating_state(void *handle,
 259                                         enum amd_clockgating_state state)
 260 {
 261         int ret = 0;
 262         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 263
 264         if (adev->powerplay.ip_funcs->set_clockgating_state)
 265                 ret = adev->powerplay.ip_funcs->set_clockgating_state(
 266                                 adev->powerplay.pp_handle, state);
 267         return ret;
 268 }
 269
 270 static int amdgpu_pp_set_powergating_state(void *handle,
 271                                         enum amd_powergating_state state)
 272 {
 273         int ret = 0;
 274         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 275
 276         if (adev->powerplay.ip_funcs->set_powergating_state)
 277                 ret = adev->powerplay.ip_funcs->set_powergating_state(
 278                                  adev->powerplay.pp_handle, state);
 279         return ret;
 280 }
 281
 282
 283 static bool amdgpu_pp_is_idle(void *handle)
 284 {
 285         bool ret = true;
 286         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 287
 288         if (adev->powerplay.ip_funcs->is_idle)
 289                 ret = adev->powerplay.ip_funcs->is_idle(
 290                                         adev->powerplay.pp_handle);
 291         return ret;
 292 }
 293
 294 static int amdgpu_pp_wait_for_idle(void *handle)
 295 {
 296         int ret = 0;
 297         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 298
 299         if (adev->powerplay.ip_funcs->wait_for_idle)
 300                 ret = adev->powerplay.ip_funcs->wait_for_idle(
 301                                         adev->powerplay.pp_handle);
 302         return ret;
 303 }
 304
 305 static int amdgpu_pp_soft_reset(void *handle)
 306 {
 307         int ret = 0;
 308         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 309
 310         if (adev->powerplay.ip_funcs->soft_reset)
 311                 ret = adev->powerplay.ip_funcs->soft_reset(
 312                                         adev->powerplay.pp_handle);
 313         return ret;
 314 }
 315
 316 const struct amd_ip_funcs amdgpu_pp_ip_funcs = {
 317         .name = "amdgpu_powerplay",
 318         .early_init = amdgpu_pp_early_init,
 319         .late_init = amdgpu_pp_late_init,
 320         .sw_init = amdgpu_pp_sw_init,
 321         .sw_fini = amdgpu_pp_sw_fini,
 322         .hw_init = amdgpu_pp_hw_init,
 323         .hw_fini = amdgpu_pp_hw_fini,
 324         .late_fini = amdgpu_pp_late_fini,
 325         .suspend = amdgpu_pp_suspend,
 326         .resume = amdgpu_pp_resume,
 327         .is_idle = amdgpu_pp_is_idle,
 328         .wait_for_idle = amdgpu_pp_wait_for_idle,
 329         .soft_reset = amdgpu_pp_soft_reset,
 330         .set_clockgating_state = amdgpu_pp_set_clockgating_state,
 331         .set_powergating_state = amdgpu_pp_set_powergating_state,
 332 };