#include "amdgpu_drv.h"
#include "amdgpu_pm.h"
#include "amdgpu_dpm.h"
-#include "amdgpu_display.h"
#include "amdgpu_smu.h"
#include "atom.h"
-#include <linux/power_supply.h>
#include <linux/pci.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/nospec.h>
#include <linux/pm_runtime.h>
#include "hwmgr.h"
-#define WIDTH_4K 3840
static const struct cg_flag_name clocks[] = {
{AMD_CG_SUPPORT_GFX_MGCG, "Graphics Medium Grain Clock Gating"},
{PP_TEMP_MEM, "mem"},
};
-void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev)
-{
- if (adev->pm.dpm_enabled) {
- mutex_lock(&adev->pm.mutex);
- if (power_supply_is_system_supplied() > 0)
- adev->pm.ac_power = true;
- else
- adev->pm.ac_power = false;
- if (adev->powerplay.pp_funcs &&
- adev->powerplay.pp_funcs->enable_bapm)
- amdgpu_dpm_enable_bapm(adev, adev->pm.ac_power);
- mutex_unlock(&adev->pm.mutex);
-
- if (is_support_sw_smu(adev))
- smu_set_ac_dc(&adev->smu);
- }
-}
-
-int amdgpu_dpm_read_sensor(struct amdgpu_device *adev, enum amd_pp_sensors sensor,
- void *data, uint32_t *size)
-{
- int ret = 0;
-
- if (!data || !size)
- return -EINVAL;
-
- if (is_support_sw_smu(adev))
- ret = smu_read_sensor(&adev->smu, sensor, data, size);
- else {
- if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->read_sensor)
- ret = adev->powerplay.pp_funcs->read_sensor((adev)->powerplay.pp_handle,
- sensor, data, size);
- else
- ret = -EINVAL;
- }
-
- return ret;
-}
-
/**
* DOC: power_dpm_state
*
NULL
};
-void amdgpu_dpm_thermal_work_handler(struct work_struct *work)
-{
- struct amdgpu_device *adev =
- container_of(work, struct amdgpu_device,
- pm.dpm.thermal.work);
- /* switch to the thermal state */
- enum amd_pm_state_type dpm_state = POWER_STATE_TYPE_INTERNAL_THERMAL;
- int temp, size = sizeof(temp);
-
- if (!adev->pm.dpm_enabled)
- return;
-
- if (!amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_TEMP,
- (void *)&temp, &size)) {
- if (temp < adev->pm.dpm.thermal.min_temp)
- /* switch back the user state */
- dpm_state = adev->pm.dpm.user_state;
- } else {
- if (adev->pm.dpm.thermal.high_to_low)
- /* switch back the user state */
- dpm_state = adev->pm.dpm.user_state;
- }
- mutex_lock(&adev->pm.mutex);
- if (dpm_state == POWER_STATE_TYPE_INTERNAL_THERMAL)
- adev->pm.dpm.thermal_active = true;
- else
- adev->pm.dpm.thermal_active = false;
- adev->pm.dpm.state = dpm_state;
- mutex_unlock(&adev->pm.mutex);
-
- amdgpu_pm_compute_clocks(adev);
-}
-
-static struct amdgpu_ps *amdgpu_dpm_pick_power_state(struct amdgpu_device *adev,
- enum amd_pm_state_type dpm_state)
-{
- int i;
- struct amdgpu_ps *ps;
- u32 ui_class;
- bool single_display = (adev->pm.dpm.new_active_crtc_count < 2) ?
- true : false;
-
- /* check if the vblank period is too short to adjust the mclk */
- if (single_display && adev->powerplay.pp_funcs->vblank_too_short) {
- if (amdgpu_dpm_vblank_too_short(adev))
- single_display = false;
- }
-
- /* certain older asics have a separare 3D performance state,
- * so try that first if the user selected performance
- */
- if (dpm_state == POWER_STATE_TYPE_PERFORMANCE)
- dpm_state = POWER_STATE_TYPE_INTERNAL_3DPERF;
- /* balanced states don't exist at the moment */
- if (dpm_state == POWER_STATE_TYPE_BALANCED)
- dpm_state = POWER_STATE_TYPE_PERFORMANCE;
-
-restart_search:
- /* Pick the best power state based on current conditions */
- for (i = 0; i < adev->pm.dpm.num_ps; i++) {
- ps = &adev->pm.dpm.ps[i];
- ui_class = ps->class & ATOM_PPLIB_CLASSIFICATION_UI_MASK;
- switch (dpm_state) {
- /* user states */
- case POWER_STATE_TYPE_BATTERY:
- if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BATTERY) {
- if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) {
- if (single_display)
- return ps;
- } else
- return ps;
- }
- break;
- case POWER_STATE_TYPE_BALANCED:
- if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BALANCED) {
- if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) {
- if (single_display)
- return ps;
- } else
- return ps;
- }
- break;
- case POWER_STATE_TYPE_PERFORMANCE:
- if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE) {
- if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) {
- if (single_display)
- return ps;
- } else
- return ps;
- }
- break;
- /* internal states */
- case POWER_STATE_TYPE_INTERNAL_UVD:
- if (adev->pm.dpm.uvd_ps)
- return adev->pm.dpm.uvd_ps;
- else
- break;
- case POWER_STATE_TYPE_INTERNAL_UVD_SD:
- if (ps->class & ATOM_PPLIB_CLASSIFICATION_SDSTATE)
- return ps;
- break;
- case POWER_STATE_TYPE_INTERNAL_UVD_HD:
- if (ps->class & ATOM_PPLIB_CLASSIFICATION_HDSTATE)
- return ps;
- break;
- case POWER_STATE_TYPE_INTERNAL_UVD_HD2:
- if (ps->class & ATOM_PPLIB_CLASSIFICATION_HD2STATE)
- return ps;
- break;
- case POWER_STATE_TYPE_INTERNAL_UVD_MVC:
- if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_MVC)
- return ps;
- break;
- case POWER_STATE_TYPE_INTERNAL_BOOT:
- return adev->pm.dpm.boot_ps;
- case POWER_STATE_TYPE_INTERNAL_THERMAL:
- if (ps->class & ATOM_PPLIB_CLASSIFICATION_THERMAL)
- return ps;
- break;
- case POWER_STATE_TYPE_INTERNAL_ACPI:
- if (ps->class & ATOM_PPLIB_CLASSIFICATION_ACPI)
- return ps;
- break;
- case POWER_STATE_TYPE_INTERNAL_ULV:
- if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_ULV)
- return ps;
- break;
- case POWER_STATE_TYPE_INTERNAL_3DPERF:
- if (ps->class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE)
- return ps;
- break;
- default:
- break;
- }
- }
- /* use a fallback state if we didn't match */
- switch (dpm_state) {
- case POWER_STATE_TYPE_INTERNAL_UVD_SD:
- dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD;
- goto restart_search;
- case POWER_STATE_TYPE_INTERNAL_UVD_HD:
- case POWER_STATE_TYPE_INTERNAL_UVD_HD2:
- case POWER_STATE_TYPE_INTERNAL_UVD_MVC:
- if (adev->pm.dpm.uvd_ps) {
- return adev->pm.dpm.uvd_ps;
- } else {
- dpm_state = POWER_STATE_TYPE_PERFORMANCE;
- goto restart_search;
- }
- case POWER_STATE_TYPE_INTERNAL_THERMAL:
- dpm_state = POWER_STATE_TYPE_INTERNAL_ACPI;
- goto restart_search;
- case POWER_STATE_TYPE_INTERNAL_ACPI:
- dpm_state = POWER_STATE_TYPE_BATTERY;
- goto restart_search;
- case POWER_STATE_TYPE_BATTERY:
- case POWER_STATE_TYPE_BALANCED:
- case POWER_STATE_TYPE_INTERNAL_3DPERF:
- dpm_state = POWER_STATE_TYPE_PERFORMANCE;
- goto restart_search;
- default:
- break;
- }
-
- return NULL;
-}
-
-static void amdgpu_dpm_change_power_state_locked(struct amdgpu_device *adev)
-{
- struct amdgpu_ps *ps;
- enum amd_pm_state_type dpm_state;
- int ret;
- bool equal = false;
-
- /* if dpm init failed */
- if (!adev->pm.dpm_enabled)
- return;
-
- if (adev->pm.dpm.user_state != adev->pm.dpm.state) {
- /* add other state override checks here */
- if ((!adev->pm.dpm.thermal_active) &&
- (!adev->pm.dpm.uvd_active))
- adev->pm.dpm.state = adev->pm.dpm.user_state;
- }
- dpm_state = adev->pm.dpm.state;
-
- ps = amdgpu_dpm_pick_power_state(adev, dpm_state);
- if (ps)
- adev->pm.dpm.requested_ps = ps;
- else
- return;
-
- if (amdgpu_dpm == 1 && adev->powerplay.pp_funcs->print_power_state) {
- printk("switching from power state:\n");
- amdgpu_dpm_print_power_state(adev, adev->pm.dpm.current_ps);
- printk("switching to power state:\n");
- amdgpu_dpm_print_power_state(adev, adev->pm.dpm.requested_ps);
- }
-
- /* update whether vce is active */
- ps->vce_active = adev->pm.dpm.vce_active;
- if (adev->powerplay.pp_funcs->display_configuration_changed)
- amdgpu_dpm_display_configuration_changed(adev);
-
- ret = amdgpu_dpm_pre_set_power_state(adev);
- if (ret)
- return;
-
- if (adev->powerplay.pp_funcs->check_state_equal) {
- if (0 != amdgpu_dpm_check_state_equal(adev, adev->pm.dpm.current_ps, adev->pm.dpm.requested_ps, &equal))
- equal = false;
- }
-
- if (equal)
- return;
-
- amdgpu_dpm_set_power_state(adev);
- amdgpu_dpm_post_set_power_state(adev);
-
- adev->pm.dpm.current_active_crtcs = adev->pm.dpm.new_active_crtcs;
- adev->pm.dpm.current_active_crtc_count = adev->pm.dpm.new_active_crtc_count;
-
- if (adev->powerplay.pp_funcs->force_performance_level) {
- if (adev->pm.dpm.thermal_active) {
- enum amd_dpm_forced_level level = adev->pm.dpm.forced_level;
- /* force low perf level for thermal */
- amdgpu_dpm_force_performance_level(adev, AMD_DPM_FORCED_LEVEL_LOW);
- /* save the user's level */
- adev->pm.dpm.forced_level = level;
- } else {
- /* otherwise, user selected level */
- amdgpu_dpm_force_performance_level(adev, adev->pm.dpm.forced_level);
- }
- }
-}
-
-void amdgpu_dpm_enable_uvd(struct amdgpu_device *adev, bool enable)
-{
- int ret = 0;
-
- if (adev->family == AMDGPU_FAMILY_SI) {
- mutex_lock(&adev->pm.mutex);
- if (enable) {
- adev->pm.dpm.uvd_active = true;
- adev->pm.dpm.state = POWER_STATE_TYPE_INTERNAL_UVD;
- } else {
- adev->pm.dpm.uvd_active = false;
- }
- mutex_unlock(&adev->pm.mutex);
-
- amdgpu_pm_compute_clocks(adev);
- } else {
- ret = amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_UVD, !enable);
- if (ret)
- DRM_ERROR("Dpm %s uvd failed, ret = %d. \n",
- enable ? "enable" : "disable", ret);
-
- /* enable/disable Low Memory PState for UVD (4k videos) */
- if (adev->asic_type == CHIP_STONEY &&
- adev->uvd.decode_image_width >= WIDTH_4K) {
- struct pp_hwmgr *hwmgr = adev->powerplay.pp_handle;
-
- if (hwmgr && hwmgr->hwmgr_func &&
- hwmgr->hwmgr_func->update_nbdpm_pstate)
- hwmgr->hwmgr_func->update_nbdpm_pstate(hwmgr,
- !enable,
- true);
- }
- }
-}
-
-void amdgpu_dpm_enable_vce(struct amdgpu_device *adev, bool enable)
-{
- int ret = 0;
-
- if (adev->family == AMDGPU_FAMILY_SI) {
- mutex_lock(&adev->pm.mutex);
- if (enable) {
- adev->pm.dpm.vce_active = true;
- /* XXX select vce level based on ring/task */
- adev->pm.dpm.vce_level = AMD_VCE_LEVEL_AC_ALL;
- } else {
- adev->pm.dpm.vce_active = false;
- }
- mutex_unlock(&adev->pm.mutex);
-
- amdgpu_pm_compute_clocks(adev);
- } else {
- ret = amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_VCE, !enable);
- if (ret)
- DRM_ERROR("Dpm %s vce failed, ret = %d. \n",
- enable ? "enable" : "disable", ret);
- }
-}
-
-void amdgpu_pm_print_power_states(struct amdgpu_device *adev)
-{
- int i;
-
- if (adev->powerplay.pp_funcs->print_power_state == NULL)
- return;
-
- for (i = 0; i < adev->pm.dpm.num_ps; i++)
- amdgpu_dpm_print_power_state(adev, &adev->pm.dpm.ps[i]);
-
-}
-
-void amdgpu_dpm_enable_jpeg(struct amdgpu_device *adev, bool enable)
-{
- int ret = 0;
-
- ret = amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_JPEG, !enable);
- if (ret)
- DRM_ERROR("Dpm %s jpeg failed, ret = %d. \n",
- enable ? "enable" : "disable", ret);
-}
-
-int amdgpu_pm_load_smu_firmware(struct amdgpu_device *adev, uint32_t *smu_version)
-{
- int r;
-
- if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->load_firmware) {
- r = adev->powerplay.pp_funcs->load_firmware(adev->powerplay.pp_handle);
- if (r) {
- pr_err("smu firmware loading failed\n");
- return r;
- }
- *smu_version = adev->pm.fw_version;
- }
- return 0;
-}
-
int amdgpu_pm_sysfs_init(struct amdgpu_device *adev)
{
int ret;
amdgpu_device_attr_remove_groups(adev, &adev->pm.pm_attr_list);
}
-void amdgpu_pm_compute_clocks(struct amdgpu_device *adev)
-{
- int i = 0;
-
- if (!adev->pm.dpm_enabled)
- return;
-
- if (adev->mode_info.num_crtc)
- amdgpu_display_bandwidth_update(adev);
-
- for (i = 0; i < AMDGPU_MAX_RINGS; i++) {
- struct amdgpu_ring *ring = adev->rings[i];
- if (ring && ring->sched.ready)
- amdgpu_fence_wait_empty(ring);
- }
-
- if (is_support_sw_smu(adev)) {
- struct smu_dpm_context *smu_dpm = &adev->smu.smu_dpm;
- smu_handle_task(&adev->smu,
- smu_dpm->dpm_level,
- AMD_PP_TASK_DISPLAY_CONFIG_CHANGE,
- true);
- } else {
- if (adev->powerplay.pp_funcs->dispatch_tasks) {
- if (!amdgpu_device_has_dc_support(adev)) {
- mutex_lock(&adev->pm.mutex);
- amdgpu_dpm_get_active_displays(adev);
- adev->pm.pm_display_cfg.num_display = adev->pm.dpm.new_active_crtc_count;
- adev->pm.pm_display_cfg.vrefresh = amdgpu_dpm_get_vrefresh(adev);
- adev->pm.pm_display_cfg.min_vblank_time = amdgpu_dpm_get_vblank_time(adev);
- /* we have issues with mclk switching with refresh rates over 120 hz on the non-DC code. */
- if (adev->pm.pm_display_cfg.vrefresh > 120)
- adev->pm.pm_display_cfg.min_vblank_time = 0;
- if (adev->powerplay.pp_funcs->display_configuration_change)
- adev->powerplay.pp_funcs->display_configuration_change(
- adev->powerplay.pp_handle,
- &adev->pm.pm_display_cfg);
- mutex_unlock(&adev->pm.mutex);
- }
- amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_DISPLAY_CONFIG_CHANGE, NULL);
- } else {
- mutex_lock(&adev->pm.mutex);
- amdgpu_dpm_get_active_displays(adev);
- amdgpu_dpm_change_power_state_locked(adev);
- mutex_unlock(&adev->pm.mutex);
- }
- }
-}
-
/*
* Debugfs info
*/
git.samba.org / sfrench / cifs-2.6.git / blobdiff