[PATCH v9 00/23] drm/rockchip: RK356x VOP2 support

[Piotr Oniszczuk]

> Wiadomość napisana przez Sascha Hauer <s.hauer at pengutronix.de> w dniu 06.04.2022, o godz. 16:58:
> 
> On Wed, Apr 06, 2022 at 11:47:22AM +0200, Piotr Oniszczuk wrote:
>> 
>> 
>> Sascha,
>> 
>> Having vop2 finally working with drm planes rendering i discovered another issue: overlay osd is invisible at playback. 
>> 
>> context: player draws video on plane #X and osd on overlay plane #Y
>> When user do i.e. seek at playback - app uses overlay OSD plane to display OSD to user. This approach is used by majority of players (KODI, etc.)
>> 
>> This works well on all platforms i have  - except rk3566 
>> 
>> For me it looks like z-order vop2 issue or alpha blending issue.
>> As this is only on rk3566 and only on drm-planes mode - issue is vop2 related imho.
> 
> During my testing I haven't seen any z-order issues, but that doesn't
> mean much. With Weston I can currently only use the AFBC enabled cluster
> windows and with modetest I can only use the non-cluster windows. Are
> you able to find out which window is used for the OSD?
> 
> Sascha
> 
> -- 
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WiIl this answer to your Q?

player:

2022-04-06 17:52:26.424487 I Display: Geometry: 1920x1080+0+0 Size(Qt): 930mmx530mm
2022-04-06 17:52:26.424922 I /dev/dri/card0 Qt EGLFS/KMS Fd:5 Crtc id:49 Connector id:51 Atomic: 1
2022-04-06 17:52:26.425061 I /dev/dri/card0: Authenticated
2022-04-06 17:52:26.534362 I /dev/dri/card0: Found 3 planes; 3 for this CRTC
2022-04-06 17:52:26.534384 I /dev/dri/card0: Selected Plane #37 Overlay for video
2022-04-06 17:52:26.534430 I /dev/dri/card0: Supported DRM video formats: NV12,NV16,NV24,YVYU,VYUY
2022-04-06 17:52:26.534437 I /dev/dri/card0: Selected Plane #43 Overlay for GUI
2022-04-06 17:52:26.534480 I /dev/dri/card0: DRM device retrieved from Qt
2022-04-06 17:52:26.534489 I /dev/dri/card0: Multi-plane setup: Requested: 1 Setup: 1

so:
plane #37 is where video is drawing
plane #43 is GUI/OSD


dri state:

root at Myth-Frontend-06c7e973c2f1:~ # cat /sys/kernel/debug/dri/0/state
plane[31]: Smart0-win0
        crtc=video_port0
        fb=58
                allocated by = mythfrontend
                refcount=2
                format=XR24 little-endian (0x34325258)
                modifier=0x0
                size=1920x1080
                layers:
                        size[0]=1920x1080
                        pitch[0]=7680
                        offset[0]=0
                        obj[0]:
                                name=0
                                refcount=4
                                start=00000000
                                size=8294400
                                imported=no
        crtc-pos=1920x1080+0+0
        src-pos=1920.000000x1080.000000+0.000000+0.000000
        rotation=1
        normalized-zpos=0
        color-encoding=ITU-R BT.601 YCbCr
        color-range=YCbCr limited range
plane[37]: Esmart0-win0
        crtc=(null)
        fb=0
        crtc-pos=1920x1080+0+0
        src-pos=1920.000000x1080.000000+0.000000+0.000000
        rotation=1
        normalized-zpos=0
        color-encoding=ITU-R BT.601 YCbCr
        color-range=YCbCr limited range
plane[43]: Cluster0-win0
        crtc=(null)
        fb=0
        crtc-pos=0x0+0+0
        src-pos=0.000000x0.000000+0.000000+0.000000
        rotation=1
        normalized-zpos=0
        color-encoding=ITU-R BT.601 YCbCr
        color-range=YCbCr limited range
crtc[49]: video_port0
        enable=1
        active=1
        self_refresh_active=0
        planes_changed=1
        mode_changed=0
        active_changed=0
        connectors_changed=0
        color_mgmt_changed=0
        plane_mask=1
        connector_mask=1
        encoder_mask=1
        mode: "1920x1080": 50 148500 1920 2448 2492 2640 1080 1084 1089 1125 0x40 0x5
connector[51]: HDMI-A-1
        crtc=video_port0
        self_refresh_aware=0