drm/radeon/kms: mark 3D power states as performance

Fixes lack of power saving with multiple heads on
some desktop cards.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=16474

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index a416ab5c0c45..6d30868744ee 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -2064,6 +2064,11 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
                                                 rdev->pm.power_state[state_index].type =
                                                         POWER_STATE_TYPE_PERFORMANCE;
                                                 break;
+                                        case ATOM_PPLIB_CLASSIFICATION_UI_NONE:
+                                                if (misc2 & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE)
+                                                        rdev->pm.power_state[state_index].type =
+                                                                POWER_STATE_TYPE_PERFORMANCE;
+                                                break;
                                         }
                                         rdev->pm.power_state[state_index].flags = 0;
                                         if (misc & ATOM_PPLIB_SINGLE_DISPLAY_ONLY)