diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2013-07-02 18:46:28 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-07-05 18:09:48 -0400 |
| commit | a160a6a3367611351624fca06838000b02aae2c7 (patch) | |
| tree | ae2df22ceda0bdb3957f3e692d677ab1e578acc8 /drivers/gpu/drm/radeon | |
| parent | 170a47f010182152bed6f44f3878dd0423df2b78 (diff) | |
drm/radeon/dpm: implement force performance level for SI
Allows you to force the selected performance level via sysfs.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/si_dpm.c | 42 |
3 files changed, 36 insertions, 9 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 9c1b7b1c026..6ec4831fdb5 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -2287,6 +2287,7 @@ static struct radeon_asic si_asic = { .get_mclk = &ni_dpm_get_mclk, .print_power_state = &ni_dpm_print_power_state, .debugfs_print_current_performance_level = &si_dpm_debugfs_print_current_performance_level, + .force_performance_level = &si_dpm_force_performance_level, }, .pflip = { .pre_page_flip = &evergreen_pre_page_flip, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 2bacc777d54..7efa51a13b3 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -683,6 +683,8 @@ void si_dpm_fini(struct radeon_device *rdev); void si_dpm_display_configuration_changed(struct radeon_device *rdev); void si_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev, struct seq_file *m); +int si_dpm_force_performance_level(struct radeon_device *rdev, + enum radeon_dpm_forced_level level); /* DCE8 - CIK */ void dce8_bandwidth_update(struct radeon_device *rdev); diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index a7e97cd05e9..700a167be36 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -3231,16 +3231,38 @@ static int si_restrict_performance_levels_before_switch(struct radeon_device *rd 0 : -EINVAL; } -#if 0 -static int si_unrestrict_performance_levels_after_switch(struct radeon_device *rdev) +int si_dpm_force_performance_level(struct radeon_device *rdev, + enum radeon_dpm_forced_level level) { - if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 0) != PPSMC_Result_OK) - return -EINVAL; + struct radeon_ps *rps = rdev->pm.dpm.current_ps; + struct ni_ps *ps = ni_get_ps(rps); + u32 levels; - return (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0) == PPSMC_Result_OK) ? - 0 : -EINVAL; + if (level == RADEON_DPM_FORCED_LEVEL_HIGH) { + if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0) != PPSMC_Result_OK) + return -EINVAL; + + if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 1) != PPSMC_Result_OK) + return -EINVAL; + } else if (level == RADEON_DPM_FORCED_LEVEL_LOW) { + if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 0) != PPSMC_Result_OK) + return -EINVAL; + + levels = ps->performance_level_count - 1; + if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, levels) != PPSMC_Result_OK) + return -EINVAL; + } else if (level == RADEON_DPM_FORCED_LEVEL_AUTO) { + if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 0) != PPSMC_Result_OK) + return -EINVAL; + + if (si_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0) != PPSMC_Result_OK) + return -EINVAL; + } + + rdev->pm.dpm.forced_level = level; + + return 0; } -#endif static int si_set_boot_state(struct radeon_device *rdev) { @@ -5992,11 +6014,13 @@ int si_dpm_set_power_state(struct radeon_device *rdev) #if 0 /* XXX */ - ret = si_unrestrict_performance_levels_after_switch(rdev); + ret = si_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO); if (ret) { - DRM_ERROR("si_unrestrict_performance_levels_after_switch failed\n"); + DRM_ERROR("si_dpm_force_performance_level failed\n"); return ret; } +#else + rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO; #endif return 0; |