> On May 20, 2016, at 4:51 AM, Herve Jourdain <[email protected]> wrote: > > This v2 series addresses the following issues with the first 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.
Looks good to me now. > > This patch series depends on two other patch series previously posted, that > enable the support for .dtbo overlay files. > > Herve Jourdain (13): > 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 > firmware.inc: bump version 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-raspberrypi_4.4.bb: bump the kernel revision to 4.4.10 to > support vc4graphics > linux-rpi.inc: add the configuration options required to support > vc4graphics > > 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-bsp/common/firmware.inc | 4 ++-- > recipes-graphics/mesa/mesa_%.bbappend | 4 ++++ > recipes-graphics/wayland/weston_%.bbappend | 6 ++---- > recipes-graphics/weston/weston_%.bbappend | 13 +++++++------ > recipes-kernel/linux/linux-raspberrypi_4.4.bb | 4 ++-- > recipes-kernel/linux/linux-rpi.inc | 10 ++++++++++ > 13 files changed, 49 insertions(+), 19 deletions(-) > create mode 100644 recipes-graphics/mesa/mesa_%.bbappend > > -- > 2.7.4 > > -- > _______________________________________________ > yocto mailing list > [email protected] > https://lists.yoctoproject.org/listinfo/yocto
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