drm/radeon/dpm: implement force performance level for cayman
Allows you to force a performance level via sysfs. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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8b5e6b7f0e
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170a47f010
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@ -1037,13 +1037,37 @@ static int ni_restrict_performance_levels_before_switch(struct radeon_device *rd
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0 : -EINVAL;
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}
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static int ni_unrestrict_performance_levels_after_switch(struct radeon_device *rdev)
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int ni_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 radeon_ps *rps = rdev->pm.dpm.current_ps;
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struct ni_ps *ps = ni_get_ps(rps);
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u32 levels;
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if (level == RADEON_DPM_FORCED_LEVEL_HIGH) {
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if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0) != PPSMC_Result_OK)
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return -EINVAL;
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if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 1) != PPSMC_Result_OK)
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return -EINVAL;
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} else if (level == RADEON_DPM_FORCED_LEVEL_LOW) {
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if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 0) != PPSMC_Result_OK)
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return -EINVAL;
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return (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0) == PPSMC_Result_OK) ?
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0 : -EINVAL;
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levels = ps->performance_level_count - 1;
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if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, levels) != PPSMC_Result_OK)
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return -EINVAL;
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} else if (level == RADEON_DPM_FORCED_LEVEL_AUTO) {
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if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 0) != PPSMC_Result_OK)
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return -EINVAL;
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if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0) != PPSMC_Result_OK)
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return -EINVAL;
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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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static void ni_stop_smc(struct radeon_device *rdev)
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@ -3831,9 +3855,9 @@ int ni_dpm_set_power_state(struct radeon_device *rdev)
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return ret;
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}
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ret = ni_unrestrict_performance_levels_after_switch(rdev);
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ret = ni_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO);
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if (ret) {
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DRM_ERROR("ni_unrestrict_performance_levels_after_switch failed\n");
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DRM_ERROR("ni_dpm_force_performance_level failed\n");
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return ret;
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}
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@ -1940,6 +1940,7 @@ static struct radeon_asic cayman_asic = {
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.get_mclk = &ni_dpm_get_mclk,
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.print_power_state = &ni_dpm_print_power_state,
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.debugfs_print_current_performance_level = &ni_dpm_debugfs_print_current_performance_level,
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.force_performance_level = &ni_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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@ -617,6 +617,8 @@ void ni_dpm_print_power_state(struct radeon_device *rdev,
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struct radeon_ps *ps);
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void ni_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
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struct seq_file *m);
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int ni_dpm_force_performance_level(struct radeon_device *rdev,
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enum radeon_dpm_forced_level level);
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int trinity_dpm_init(struct radeon_device *rdev);
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int trinity_dpm_enable(struct radeon_device *rdev);
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void trinity_dpm_disable(struct radeon_device *rdev);
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