[PATCH] drm/amd/display: reset the workload type when using MALL

[Kenneth Feng <kenneth.feng@amd.com>]

Reset the workload type when using MALL.
When there is no activity on the screen, dal requestes dmcub
to use MALL. However, gfx ring is not empty at the same time.
Currrently the workload type is set to 3D fullscreen when gfx
ring has jobs. No activity on the screen and the gfx ring empty
state can not be synchronized to each other. By removing the
3D fullscreen workload when there is no activity on screen, the
event can be passed down to dmcub->pmfw, since pmfw only allows
MALL when the workload type setting is bootup default, then MALL
can be really used. And this does not impact the thread to detect
the ring jobs and can set back to the 3D fullscreen later.

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
index 36a830a7440f..154936166896 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
@@ -244,6 +244,8 @@ static void amdgpu_dm_crtc_vblank_control_worker(struct work_struct *work)
 	struct vblank_control_work *vblank_work =
 		container_of(work, struct vblank_control_work, work);
 	struct amdgpu_display_manager *dm = vblank_work->dm;
+	int r;
+	struct amdgpu_device *adev = drm_to_adev(dm->ddev);
 
 	mutex_lock(&dm->dc_lock);
 
@@ -271,8 +273,14 @@ static void amdgpu_dm_crtc_vblank_control_worker(struct work_struct *work)
 			vblank_work->acrtc->dm_irq_params.allow_sr_entry);
 	}
 
-	if (dm->active_vblank_irq_count == 0)
+	if (dm->active_vblank_irq_count == 0) {
+		r = amdgpu_dpm_switch_power_profile(adev, PP_SMC_POWER_PROFILE_FULLSCREEN3D, false);
+		if (r)
+            dev_warn(adev->dev, "(%d) failed to disable fullscreen 3D  power profile mode\n",
+					 r);
+
 		dc_allow_idle_optimizations(dm->dc, true);
+	}
 
 	mutex_unlock(&dm->dc_lock);
 
-- 
2.34.1