[Buildroot] [Bug 14416] New: Mesa3D missing DRI3 support for various Gallium drivers

[bugzilla@busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=14416

            Bug ID: 14416
           Summary: Mesa3D missing DRI3 support for various Gallium
                    drivers
           Product: buildroot
           Version: 2021.08.2
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: major
          Priority: P5
         Component: Other
          Assignee: unassigned@buildroot.uclibc.org
          Reporter: info@arachnodroid.de
                CC: buildroot@uclibc.org
  Target Milestone: ---

Hi!

I've found https://bugs.busybox.net/show_bug.cgi?id=13831 and can confirm that
Mesa3D is not working on my Raspberry Pi 4. It turns out, that the logic in
mesa3d.mk seems to be broken, as it doesn't enable DRI3 support, though it's
required for V3D/VC4. Otherwise glxgears doesn't work and complains with a

Failed to open bo 1: Permission denied.

Below you will find a patch to enable DRI3 support if one of the Gallium
drivers is selected which requires DRI3 support.

Best regards,
Michael

--- snip ---

--- a/mesa3d.mk 2021-12-02 07:08:41.432624186 +0100
+++ b/mesa3d.mk 2021-12-02 07:24:06.889889427 +0100
@@ -120,7 +120,11 @@
        -Dgallium-extra-hud=true
 endif

-ifeq ($(BR2_PACKAGE_MESA3D_DRI_DRIVER),)
+ifeq ($(BR2_PACKAGE_MESA3D_DRI_DRIVER) \
+       $(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_V3D) \
+       $(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_VC4) \
+       $(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_LIMA) \
+       $(BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_PANFROST),)
 MESA3D_CONF_OPTS += \
        -Ddri-drivers= -Ddri3=disabled
 else


--- snip ---

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