From: CK Hu <ck.hu@mediatek.com>
To: Alexandre Courbot <acourbot@chromium.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
Matthias Brugger <matthias.bgg@gmail.com>,
Tomasz Figa <tfiga@chromium.org>,
<dri-devel@lists.freedesktop.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 0/2] drm/mediatek: make imported PRIME buffers contiguous
Date: Thu, 15 Aug 2019 09:40:36 +0800 [thread overview]
Message-ID: <1565833236.24305.2.camel@mtksdaap41> (raw)
In-Reply-To: <20190729053335.251379-1-acourbot@chromium.org>
Hi, Alexandre:
On Mon, 2019-07-29 at 14:33 +0900, Alexandre Courbot wrote:
> The default DMA segment size was used when importing PRIME buffers,
> which resulted in a chance of them not being contiguous in the virtual
> IO space of the device and mtk_gem_prime_import_sg_table() complaining
> that the SG table was not contiguous as it expects.
>
> This series fixes this issue by
>
> 1) Using the correct DMA device when importing PRIME buffers,
> 2) Setting a more suitable DMA segment size on the DMA device than the
> default 64KB.
For the series, applied to mediatek-drm-fixes-5.3 [1], thanks.
[1]
https://github.com/ckhu-mediatek/linux.git-tags/commits/mediatek-drm-fixes-5.3
>
> Changes since v1:
> - Split into two patches,
> - Fixed an error path that would have returned 0.
>
> Alexandre Courbot (2):
> drm/mediatek: use correct device to import PRIME buffers
> drm/mediatek: set DMA max segment size
>
> drivers/gpu/drm/mediatek/mtk_drm_drv.c | 49 ++++++++++++++++++++++++--
> drivers/gpu/drm/mediatek/mtk_drm_drv.h | 2 ++
> 2 files changed, 48 insertions(+), 3 deletions(-)
>
prev parent reply other threads:[~2019-08-15 1:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-29 5:33 [PATCH v2 0/2] drm/mediatek: make imported PRIME buffers contiguous Alexandre Courbot
2019-07-29 5:33 ` [PATCH v2 1/2] drm/mediatek: use correct device to import PRIME buffers Alexandre Courbot
2019-07-29 5:33 ` [PATCH v2 2/2] drm/mediatek: set DMA max segment size Alexandre Courbot
2019-08-15 1:40 ` CK Hu [this message]
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