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DRM patches for @cillian64 #6319

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DRM patches for @cillian64 #6319

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Commits on Sep 11, 2024

  1. drm: Set non-desktop property to true for writeback and virtual conne… 

    …ctors

The non-desktop property "Indicates the output should be ignored for
purposes of displaying a standard desktop environment or console."

That sounds like it should be true for all writeback and virtual
connectors as you shouldn't render a desktop to them, so set it
by default.

Signed-off-by: Dave Stevenson <[email protected]>
    @6by9
    6by9 committed Sep 11, 2024
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  2. drm: Increase plane_mask to 64bit. 

    The limit of 32 planes per DRM device is dictated by the use
of planes_mask returning a u32.

Change to a u64 such that 64 planes can be supported by a device.

Signed-off-by: Dave Stevenson <[email protected]>
    @6by9
    6by9 committed Sep 11, 2024
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  3. drm/vc4: Increase number of overlay planes from 16 to 48 

    The HVS can accept an arbitrary number of planes, provided
that the overall pixel read load is within limits, and
the display list can fit into the dlist memory.

Now that DRM will support 64 planes per device, increase
the number of overlay planes from 16 to 48 so that the
dlist complexity can be increased (eg 4x4 video wall on
each of 3 displays).

Signed-off-by: Dave Stevenson <[email protected]>
    @6by9
    6by9 committed Sep 11, 2024
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  4. drm/vc4: Assign 32 overlay planes to writeback only 

    Instead of having 48 generic overlay planes, assign 32 to the
writeback connector so that there is no ambiguity in wlroots
when trying to find a plane for composition using the writeback
connector vs display.

Signed-off-by: Dave Stevenson <[email protected]>
    @6by9
    6by9 committed Sep 11, 2024
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