drm/radeon/dpm: implement force performance level for TN
Allows you to force the selected performance level via sysfs. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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5d5e559193
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9b5de59629
6 changed files with 44 additions and 0 deletions
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@ -103,6 +103,7 @@ typedef uint8_t PPSMC_Result;
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#define PPSMC_MSG_DPM_Config ((uint32_t) 0x102)
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#define PPSMC_MSG_DPM_ForceState ((uint32_t) 0x104)
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#define PPSMC_MSG_PG_SIMD_Config ((uint32_t) 0x108)
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#define PPSMC_MSG_DPM_N_LevelsDisabled ((uint32_t) 0x112)
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#define PPSMC_MSG_DCE_RemoveVoltageAdjustment ((uint32_t) 0x11d)
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#define PPSMC_MSG_DCE_AllowVoltageAdjustment ((uint32_t) 0x11e)
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#define PPSMC_MSG_UVD_DPM_Config ((uint32_t) 0x124)
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@ -2115,6 +2115,7 @@ static struct radeon_asic trinity_asic = {
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.get_mclk = &trinity_dpm_get_mclk,
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.print_power_state = &trinity_dpm_print_power_state,
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.debugfs_print_current_performance_level = &trinity_dpm_debugfs_print_current_performance_level,
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.force_performance_level = &trinity_dpm_force_performance_level,
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},
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.pflip = {
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.pre_page_flip = &evergreen_pre_page_flip,
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@ -636,6 +636,8 @@ void trinity_dpm_print_power_state(struct radeon_device *rdev,
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struct radeon_ps *ps);
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void trinity_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
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struct seq_file *m);
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int trinity_dpm_force_performance_level(struct radeon_device *rdev,
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enum radeon_dpm_forced_level level);
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/* DCE6 - SI */
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void dce6_bandwidth_update(struct radeon_device *rdev);
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@ -1158,6 +1158,37 @@ static void trinity_setup_nbp_sim(struct radeon_device *rdev,
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}
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}
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int trinity_dpm_force_performance_level(struct radeon_device *rdev,
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enum radeon_dpm_forced_level level)
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{
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struct trinity_power_info *pi = trinity_get_pi(rdev);
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struct radeon_ps *rps = &pi->current_rps;
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struct trinity_ps *ps = trinity_get_ps(rps);
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int i, ret;
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if (ps->num_levels <= 1)
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return 0;
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if (level == RADEON_DPM_FORCED_LEVEL_HIGH) {
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/* not supported by the hw */
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return -EINVAL;
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} else if (level == RADEON_DPM_FORCED_LEVEL_LOW) {
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ret = trinity_dpm_n_levels_disabled(rdev, ps->num_levels - 1);
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if (ret)
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return ret;
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} else {
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for (i = 0; i < ps->num_levels; i++) {
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ret = trinity_dpm_n_levels_disabled(rdev, 0);
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if (ret)
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return ret;
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}
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}
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rdev->pm.dpm.forced_level = level;
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return 0;
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}
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int trinity_dpm_pre_set_power_state(struct radeon_device *rdev)
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{
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struct trinity_power_info *pi = trinity_get_pi(rdev);
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@ -1190,6 +1221,7 @@ int trinity_dpm_set_power_state(struct radeon_device *rdev)
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trinity_force_level_0(rdev);
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trinity_unforce_levels(rdev);
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trinity_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps);
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rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO;
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}
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trinity_release_mutex(rdev);
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@ -121,6 +121,7 @@ struct trinity_power_info {
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int trinity_dpm_config(struct radeon_device *rdev, bool enable);
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int trinity_uvd_dpm_config(struct radeon_device *rdev);
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int trinity_dpm_force_state(struct radeon_device *rdev, u32 n);
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int trinity_dpm_n_levels_disabled(struct radeon_device *rdev, u32 n);
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int trinity_dpm_no_forced_level(struct radeon_device *rdev);
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int trinity_dce_enable_voltage_adjustment(struct radeon_device *rdev,
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bool enable);
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@ -73,6 +73,13 @@ int trinity_dpm_force_state(struct radeon_device *rdev, u32 n)
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return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_ForceState);
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}
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int trinity_dpm_n_levels_disabled(struct radeon_device *rdev, u32 n)
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{
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WREG32_SMC(SMU_SCRATCH0, n);
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return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_N_LevelsDisabled);
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}
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int trinity_uvd_dpm_config(struct radeon_device *rdev)
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{
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return trinity_notify_message_to_smu(rdev, PPSMC_MSG_UVD_DPM_Config);
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