On 30/05/16 22:49, Herve Jourdain wrote:
> This v3 series addresses the following issues with the v2 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.
> Hi. I tested this and works fine. So +1 vote to merge this. > It was tested with wayland/weston, without the support for X11. I'm ataching here a minor patch that adds support for X11. Regards!
From 7058846569c3769c3e3c8a4de25a123ab56a289f Mon Sep 17 00:00:00 2001
From: Carlos Alberto Lopez Perez <clo...@igalia.com>
Date: Fri, 15 Jul 2016 21:22:00 +0200
Subject: [PATCH] vc4graphics: Support X11 with the VC4 driver.
* We need to use the X11 modesetting driver with VC4.
* We need to build at least the mesa swrast DRI driver.
(its already the default so don't overwrite it to empty)
Signed-off-by: Carlos Alberto Lopez Perez <clo...@igalia.com>
---
conf/machine/include/rpi-base.inc | 2 +-
recipes-graphics/mesa/mesa_%.bbappend | 2 --
2 files changed, 1 insertion(+), 3 deletions(-)
diff --git a/conf/machine/include/rpi-base.inc b/conf/machine/include/rpi-base.inc
index 34b90e8..3311074 100644
--- a/conf/machine/include/rpi-base.inc
+++ b/conf/machine/include/rpi-base.inc
@@ -12,7 +12,7 @@ XSERVER = " \
xf86-input-evdev \
xf86-input-mouse \
xf86-input-keyboard \
- xf86-video-fbdev \
+ ${@bb.utils.contains("MACHINE_FEATURES", "vc4graphics", "xf86-video-modesetting", "xf86-video-fbdev", d)} \
"
# Really supported starting from linux-raspberrypi 3.18.y only
diff --git a/recipes-graphics/mesa/mesa_%.bbappend b/recipes-graphics/mesa/mesa_%.bbappend
index b182388..9c5df99 100644
--- a/recipes-graphics/mesa/mesa_%.bbappend
+++ b/recipes-graphics/mesa/mesa_%.bbappend
@@ -1,4 +1,2 @@
PACKAGECONFIG_append_rpi = " gallium"
GALLIUMDRIVERS_rpi = "vc4"
-DRIDRIVERS_rpi = ""
-
--
2.1.4
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