On 21/07/16 14:32, Herve Jourdain wrote:
> v4 series:
> a. rebased
> b. Upstream-Status added to the patch to the VC4 driver (needed only for
> kernel 4.4, accepted upstream in 4.7)
>
> v3 series:
> a. patch rebased
> b. new revision of kernel, to get a version of the VC4 graphics driver that
> handles render nodes
> c. patch to the VC4 driver to enable proper working of the render nodes (need
> to add authorization for IOCTLs)
>
> v2 series:
> a. Fix the 4.4.10 kernel revision
> b. Effectively add vc4-kms-v3d overlay to the list of overlays to build
> (forgotten previously)
> c. Make the parameter to the v4c-kms-v3d overlay configurable
> d. Add default values for the cma parameter to the v4c-kms-v3d overlay,
> depending on the board (and the memory it has)
>
> This patch series enables the support for the VC4 graphics driver from Eric
> Anholt.
> There was a previous patch series by Javier Martinez Canillas, but it
> required use of a different kernel.
> VC4 is now supported in the raspberrypi official kernel, at least for 4.4.9+.
> The support in 4.1 exists, but it is NOT STABLE, so it has been deemed
> unreasonable to support VC4 with 4.1 kernels.
>
> THEREFORE, VC4 graphics is supported ONLY for kernel versions 4.4.9 and later.
>
> This patch series proposes to support VC4 by only adding 'vc4graphics' to
> MACHINE_FEATURES, for raspberrypi. If this is set, it will trigger all the
> necessary configuration/changes to use the VC4 driver, including
> mesa/wayland/weston currently, and adding the overlay required.
> In order for this series to work, some previous patches are needed (support
> for .dtbo, and fix of the mesa packaging when there is no DRI driver).
> The memory reserved for the VC4 driver has default values depending on the
> version of the board used, but it can be configured by setting VC4_CMA_SIZE
> to a value supported by the overlay ('cma-256', 'cma-192', 'cma-128',
> 'cma-96', 'cma-64').
> 'cma-256' is the recommended value, but it might not be possible on boards
> with 512MB or DRAM, or less...
> 'cma-64' is known to not being able to support FHD/1080p.
>
> It was tested with wayland/weston, without the support for X11.
> I have a follow-up patch adding support for X11 that I will send once this is merged. > This patch series depends on two other patch series previously posted, that > enable the support for .dtbo overlay files. > > Herve Jourdain (12): > rpi-default-providers.inc: change default providers to support > vc4graphics > rpi-base.inc: add vc4-kms-v3d to the overlays to support vc4graphics > raspberrypi.conf: set the default value of VC4_CMA_SIZE to support > vc4graphics > raspberrypi0.conf: set the default value of VC4_CMA_SIZE to support > vc4graphics > raspberrypi2.conf: set the default value of VC4_CMA_SIZE to support > vc4graphics > raspberrypi3.conf: set the default value of VC4_CMA_SIZE to support > vc4graphics > rpi-config_git.bb: add v4c overlay to config.txt to support > vc4graphics > wayland/weston_%.bbappend: modify configuration options to support > vc4graphics > weston/weston_%.bbappend: modify configuration options to support > vc4graphics > mesa_%.bbappend: new file to add the correct configuration options to > support vc4graphics > linux-rpi.inc: add the configuration options required to support > vc4graphics > linux-raspberrypi-4.4: add patch to enable proper operation of > renderD128 device > > conf/machine/include/rpi-base.inc | 1 + > conf/machine/include/rpi-default-providers.inc | 8 +++--- > conf/machine/raspberrypi.conf | 2 ++ > conf/machine/raspberrypi0.conf | 2 ++ > conf/machine/raspberrypi2.conf | 2 ++ > conf/machine/raspberrypi3.conf | 2 ++ > recipes-bsp/bootfiles/rpi-config_git.bb | 10 +++++++- > recipes-graphics/mesa/mesa_%.bbappend | 4 +++ > recipes-graphics/wayland/weston_%.bbappend | 6 ++--- > recipes-graphics/weston/weston_%.bbappend | 13 +++++----- > .../0002-vc4-ioctl-rendering-allow.patch | 29 > ++++++++++++++++++++++ > recipes-kernel/linux/linux-raspberrypi_4.4.bb | 1 + > recipes-kernel/linux/linux-rpi.inc | 10 ++++++++ > 13 files changed, 75 insertions(+), 15 deletions(-) > create mode 100644 recipes-graphics/mesa/mesa_%.bbappend > create mode 100644 > recipes-kernel/linux/linux-raspberrypi-4.4/0002-vc4-ioctl-rendering-allow.patch > Tested-by: Carlos Alberto Lopez Perez <clo...@igalia.com>
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