linux-kernel - [RFC PATCH 0/4] Add support for i.MX8MM GPUs through Etnaviv

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20200430124602.14463-1-frieder.schrempf@kontron.de>
Date:   Thu, 30 Apr 2020 12:46:03 +0000
From:   Schrempf Frieder <frieder.schrempf@...tron.de>
To:     Adam Ford <aford173@...il.com>, Anson Huang <Anson.Huang@....com>,
        Christian Gmeiner <christian.gmeiner@...il.com>,
        Daniel Baluta <daniel.baluta@....com>,
        Fabio Estevam <festevam@...il.com>,
        Schrempf Frieder <frieder.schrempf@...tron.de>,
        Leonard Crestez <leonard.crestez@....com>,
        "Li Jun" <jun.li@....com>, Lucas Stach <l.stach@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        Peng Fan <peng.fan@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Russell King <linux+etnaviv@...linux.org.uk>,
        "Sascha Hauer" <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        "S.j. Wang" <shengjiu.wang@....com>
CC:     "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "etnaviv@...ts.freedesktop.org" <etnaviv@...ts.freedesktop.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [RFC PATCH 0/4] Add support for i.MX8MM GPUs through Etnaviv

From: Frieder Schrempf <frieder.schrempf@...tron.de>

This series contains patches to enable GPU support for the i.MX8MM.
There is currently no upstream support for the display subsystem of
the i.MX8MM, but I have a 5.4-based tree with some ported drivers for
LCDIF, DSIM bridge, etc. (see [1]) which I used to test the GPU with
glmark2.

I'm posting this as an RFC for now, as I'm not feeling confident of
all of the changes. Especially patch 1 seems a bit like a hack. Maybe
someone can help me understand the underlying problem and/or come up
with a better fix.

[1] https://git.kontron-electronics.de/linux/linux/-/commits/v5.4-ktn

Frieder Schrempf (4):
  drm/etnaviv: Prevent IRQ triggering at probe time on i.MX8MM
  drm/etnaviv: Fix error path in etnaviv_gpu_clk_enable()
  drm/etnaviv: Change order of enabling clocks to fix boot on i.MX8MM
  arm64: dts: imx8mm: Add GPU nodes for 2D and 3D core using Etnaviv

 arch/arm64/boot/dts/freescale/imx8mm.dtsi | 36 ++++++++++++
 drivers/gpu/drm/etnaviv/etnaviv_gpu.c     | 68 ++++++++++++++---------
 2 files changed, 79 insertions(+), 25 deletions(-)

-- 
2.17.1