linux-kernel - [PATCH v2 0/3] drm/etnaviv: IOMMU related fixes

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Date:   Tue,  7 Sep 2021 18:49:42 +0200
From:   Michael Walle <michael@...le.cc>
To:     Robin Murphy <robin.murphy@....com>, etnaviv@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc:     "Lukas F . Hartmann" <lukas@...re.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Russell King <linux+etnaviv@...linux.org.uk>,
        Christian Gmeiner <christian.gmeiner@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Michael Walle <michael@...le.cc>
Subject: [PATCH v2 0/3] drm/etnaviv: IOMMU related fixes

This patch series fixes usage of the etnaviv driver with GPUs behind a
IOMMU. It was tested on a NXP LS1028A SoC. Together with Lucas' MMU patches
[1] there are not more (GPU internal) MMU nor (system) IOMMU faults on the
LS1028A.

[1] https://lists.freedesktop.org/archives/etnaviv/2021-August/003682.html

changes since v1:
 - don't move the former dma_mask setup code around in patch 2/3. Will
   avoid any confusion.

Michael Walle (3):
  drm/etnaviv: use PLATFORM_DEVID_NONE
  drm/etnaviv: fix dma configuration of the virtual device
  drm/etnaviv: use a 32 bit mask as coherent DMA mask

 drivers/gpu/drm/etnaviv/etnaviv_drv.c | 41 ++++++++++++++++++++-------
 1 file changed, 31 insertions(+), 10 deletions(-)

-- 
2.30.2