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authorAlex Deucher <alexander.deucher@amd.com>2013-07-05 11:48:31 -0400
committerAlex Deucher <alexander.deucher@amd.com>2013-07-05 18:09:02 -0400
commitedcaa5b12525f0de79e027ea1ae8a96ee7d785b3 (patch)
tree9d6dad6f0929f8d315c2ee0187f774809f75fca9 /drivers/gpu/drm
parentc6cf7777a32da874fabec4fd1c2a579f0ba4e4dd (diff)
drm/radeon: add support for 3d perf states on older asics
Certain older rv770 asics have both a performance and a 3D performance state rather than just multiple performance levels in the state power state. The current code would select the performance state rather than the 3D performance state when the "performance" profile was selected. This change switches to the "balanced" profile by default which ends up being the internal performance profile. When the user selects the "performance" profile, it selects the internal 3D performance state so the user can select the higher performance modes. For most asics this changes nothing. For certain rv770 asics with static performance and 3D performance states, this allows you to select between then using by selecting the "balanced" and "performance" dpm profiles. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/radeon/radeon.h1
-rw-r--r--drivers/gpu/drm/radeon/radeon_pm.c17
2 files changed, 15 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index f51807f04f6..08cececb376 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1100,6 +1100,7 @@ enum radeon_pm_state_type {
POWER_STATE_TYPE_INTERNAL_THERMAL,
POWER_STATE_TYPE_INTERNAL_ACPI,
POWER_STATE_TYPE_INTERNAL_ULV,
+ POWER_STATE_TYPE_INTERNAL_3DPERF,
};
enum radeon_pm_profile_type {
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index c3e5e119702..aaafb931922 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -586,11 +586,16 @@ static struct radeon_ps *radeon_dpm_pick_power_state(struct radeon_device *rdev,
struct radeon_ps *ps;
u32 ui_class;
-restart_search:
+ /* certain older asics have a separare 3D performance state,
+ * so try that first if the user selected performance
+ */
+ if (dpm_state == POWER_STATE_TYPE_PERFORMANCE)
+ dpm_state = POWER_STATE_TYPE_INTERNAL_3DPERF;
/* balanced states don't exist at the moment */
if (dpm_state == POWER_STATE_TYPE_BALANCED)
dpm_state = POWER_STATE_TYPE_PERFORMANCE;
+restart_search:
/* Pick the best power state based on current conditions */
for (i = 0; i < rdev->pm.dpm.num_ps; i++) {
ps = &rdev->pm.dpm.ps[i];
@@ -657,6 +662,10 @@ restart_search:
if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_ULV)
return ps;
break;
+ case POWER_STATE_TYPE_INTERNAL_3DPERF:
+ if (ps->class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE)
+ return ps;
+ break;
default:
break;
}
@@ -675,6 +684,8 @@ restart_search:
dpm_state = POWER_STATE_TYPE_BATTERY;
goto restart_search;
case POWER_STATE_TYPE_BATTERY:
+ case POWER_STATE_TYPE_BALANCED:
+ case POWER_STATE_TYPE_INTERNAL_3DPERF:
dpm_state = POWER_STATE_TYPE_PERFORMANCE;
goto restart_search;
default:
@@ -1003,8 +1014,8 @@ static int radeon_pm_init_dpm(struct radeon_device *rdev)
int ret;
/* default to performance state */
- rdev->pm.dpm.state = POWER_STATE_TYPE_PERFORMANCE;
- rdev->pm.dpm.user_state = POWER_STATE_TYPE_PERFORMANCE;
+ rdev->pm.dpm.state = POWER_STATE_TYPE_BALANCED;
+ rdev->pm.dpm.user_state = POWER_STATE_TYPE_BALANCED;
rdev->pm.default_sclk = rdev->clock.default_sclk;
rdev->pm.default_mclk = rdev->clock.default_mclk;
rdev->pm.current_sclk = rdev->clock.default_sclk;