drm/radeon/dpm: implement force performance level for ON/LN
Allows you to force the selected performance level via sysfs. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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a160a6a336
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@ -1641,6 +1641,7 @@ static struct radeon_asic sumo_asic = {
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.get_mclk = &sumo_dpm_get_mclk,
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.get_mclk = &sumo_dpm_get_mclk,
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.print_power_state = &sumo_dpm_print_power_state,
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.print_power_state = &sumo_dpm_print_power_state,
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.debugfs_print_current_performance_level = &sumo_dpm_debugfs_print_current_performance_level,
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.debugfs_print_current_performance_level = &sumo_dpm_debugfs_print_current_performance_level,
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.force_performance_level = &sumo_dpm_force_performance_level,
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},
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},
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.pflip = {
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.pflip = {
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.pre_page_flip = &evergreen_pre_page_flip,
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.pre_page_flip = &evergreen_pre_page_flip,
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@ -569,6 +569,8 @@ void sumo_dpm_print_power_state(struct radeon_device *rdev,
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struct radeon_ps *ps);
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struct radeon_ps *ps);
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void sumo_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
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void sumo_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
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struct seq_file *m);
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struct seq_file *m);
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int sumo_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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/*
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* cayman
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* cayman
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@ -1319,6 +1319,8 @@ int sumo_dpm_set_power_state(struct radeon_device *rdev)
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if (pi->enable_dpm)
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if (pi->enable_dpm)
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sumo_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps);
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sumo_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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return 0;
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return 0;
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}
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}
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@ -1830,3 +1832,45 @@ u32 sumo_dpm_get_mclk(struct radeon_device *rdev, bool low)
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return pi->sys_info.bootup_uma_clk;
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return pi->sys_info.bootup_uma_clk;
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}
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}
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int sumo_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 sumo_power_info *pi = sumo_get_pi(rdev);
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struct radeon_ps *rps = &pi->current_rps;
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struct sumo_ps *ps = sumo_get_ps(rps);
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int i;
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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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sumo_power_level_enable(rdev, ps->num_levels - 1, true);
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sumo_set_forced_level(rdev, ps->num_levels - 1);
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sumo_set_forced_mode_enabled(rdev);
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for (i = 0; i < ps->num_levels - 1; i++) {
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sumo_power_level_enable(rdev, i, false);
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}
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sumo_set_forced_mode(rdev, false);
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sumo_set_forced_mode_enabled(rdev);
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sumo_set_forced_mode(rdev, false);
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} else if (level == RADEON_DPM_FORCED_LEVEL_LOW) {
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sumo_power_level_enable(rdev, 0, true);
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sumo_set_forced_level(rdev, 0);
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sumo_set_forced_mode_enabled(rdev);
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for (i = 1; i < ps->num_levels; i++) {
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sumo_power_level_enable(rdev, i, false);
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}
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sumo_set_forced_mode(rdev, false);
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sumo_set_forced_mode_enabled(rdev);
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sumo_set_forced_mode(rdev, false);
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} else {
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for (i = 0; i < ps->num_levels; i++) {
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sumo_power_level_enable(rdev, i, true);
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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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