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authorAlex Deucher <alexander.deucher@amd.com>2013-07-02 18:46:28 -0400
committerAlex Deucher <alexander.deucher@amd.com>2013-07-05 18:09:48 -0400
commita160a6a3367611351624fca06838000b02aae2c7 (patch)
treeae2df22ceda0bdb3957f3e692d677ab1e578acc8 /drivers
parent170a47f010182152bed6f44f3878dd0423df2b78 (diff)
downloadlinux-a160a6a3367611351624fca06838000b02aae2c7.tar.gz
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')
-rw-r--r--drivers/gpu/drm/radeon/radeon_asic.c1
-rw-r--r--drivers/gpu/drm/radeon/radeon_asic.h2
-rw-r--r--drivers/gpu/drm/radeon/si_dpm.c42
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 9c1b7b1c0268..6ec4831fdb58 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 2bacc777d549..7efa51a13b3c 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 a7e97cd05e96..700a167be369 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;