Missing v3d driver disables 3D support on RPi4

[Chris Halse Rogers]

Our raspberry pi kernel builds don't include the v3d drm driver
(The relevant diff between the raspbian kernel config and ours)
-CONFIG_DRM_V3D=m
+# CONFIG_DRM_V3D is not set

This means 3D acceleration is unavailable on our Pi 4 images.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Oliver Grawert (ogra)]

adding bionic since we're supposed to fully support the pi4 there too

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Mark Dunn (mdunn-home)]

Thanks, what version will it appear in please, I would like to test it on (Pi4/arm64)
The last one that got updated/upgraded was 5.4.0-1011-raspi (which I have ignored so far)

NOTE: In order to see this change in the linux config you may want to change
    linux/drivers/gpu/drm/v3d/kconfig

- depends on ARCH_BCM || ARCH_BCMSTB || COMPILE_TEST
+ depends on ARCH_BCM || ARCH_BCMSTB || ARCH_BCM2835 || COMPILE_TEST

ogra, I tried it on bionic originally and it failed:
https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1850876
I am willing to test bionic too if you push me :)

[AlpineCarver (acarv)]

I believe this change is necessary, but not sufficient, to make OpenGL use the GPU on a pi 4 running 20.04. After making the change and trying it, I filed a new bug report:
https://bugs.launchpad.net/ubuntu/+source/linux-raspi/+bug/1880125

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-raspi - 5.4.0-1012.12

---------------
linux-raspi (5.4.0-1012.12) focal; urgency=medium

  * focal/linux-raspi: 5.4.0-1012.12 -proposed tracker (LP: #1878791)

  * Focal update: v5.4.36 upstream stable release (LP: #1876361)
    - [Config] raspi: updateconfigs for ARM64_ERRATUM_1542419

  * Raspberry Pi 4B: USB OTG is not working (LP: #1861070)
    - [Config] raspi: Set USB_DWC2_DUAL_ROLE=y

  * Missing v3d driver disables 3D support on RPi4 (LP: #1876862)
    - [Config] raspi: Set DRM_V3D=m

  * focal/linux-raspi: Upstream raspberrypi patchset 2020-05-11 (LP: #1877928)
    - SAUCE: media: bcm2835-unicam: Resync to upstream raspberrypi
    - media: bcm2835-unicam: Add support for mulitple device nodes.
    - media: bcm2835-unicam: Add embedded data node.
    - media: bcm2835-unicam: Use dummy buffer if none have been queued
    - media: bcm2835-unicam: Disable event-related ioctls on metadata node
    - media: bcm2835-unicam: Add support for the FRAME_SYNC event
    - media: imx219: Advertise embedded data node on media pad 1
    - dts: bcm2711: EMMC2 can address the whole first GB
    - driver: char: rpivid: Remove legacy name support
    - driver: char: rpivid: Don't map more than wanted
    - defconfig: Enable I2C_MUX_PINCTRL in all Pi configs
    - dt: Implement an I2C pinctrl mux for BSC0.
    - dtoverlays: Update CSI overlays to use i2c_csi_dsi
    - dt: Update all mainline bcm283x dt files for i2c0 pinctrl mux
    - ARM: dts: Create bcm2708-rpi-b-rev1.dts
    - dts: bcm2711: set #size-cells = <2>
    - dts: bcm2711: add "High Peripheral" mode overlay
    - Revert "spi: spidev: Fix CS polarity if GPIO descriptors are used"
    - spi: use_gpio_descriptor fixup moved to spi_setup
    - overlays: rpivid-v4l2 also needs size-cells = 2
    - media: bcm2835-unicam: Re-fetch mbus code from subdev on a g_fmt call
    - uapi: bcm2835-isp: Add bcm2835-isp uapi header file
    - media: uapi: v4l2-core: Add ISP statistics output V4L2 fourcc type
    - media: uapi: v4l-ctrls: Add CID base for the bcm2835-isp driver
    - staging: mmal-vchiq: Fix formatting errors in mmal_parameters.h
    - staging: vc04_services: ISP: Add a more complex ISP processing component
    - staging: vchiq: Load bcm2835_isp driver from vchiq
    - configs: Add VIDEO_ISP_BCM2835 to all Pi defconfigs
    - vc4_hvs: Mark core clock as optional
    - vc4_hdmi: BCM2835 requires a fixed hsm clock for CEC to work
    - configs: Enable CONFIG_DRM_VC4_HDMI_CEC
    - media: i2c: imx219: Implement get_selection
    - media: i2c: ov5647: Add support for g_selection to reflect cropping/binning
    - media: i2c: ov5467: Fixup error path to release mutex
    - media: i2c: ov5647: Support V4L2_CID_PIXEL_RATE
    - media: i2c: ov5647: Set V4L2_SUBDEV_FL_HAS_EVENTS flag
    - media: i2c: ov5647: Add support for V4L2_CID_VBLANK
    - media: i2c: ov5647: Neither analogue gain nor exposure need EXECUTE_ON_WRITE
    - media: i2c: ov5647: Use member names in mode tables
    - media: i2c: ov5647: Advertise the correct exposure range
    - media: i2c: imx219: Declare that the driver can create events
    - media: bcm2835-unicam: Add support for VIDIOC_[S|G]_...