From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Alexandre Courbot <acourbot@nvidia.com>
Cc: David Airlie <airlied@linux.ie>, Ben Skeggs <bskeggs@redhat.com>,
Lucas Stach <dev@lynxeye.de>,
Thierry Reding <thierry.reding@gmail.com>,
gnurou@gmail.com, nouveau@lists.freedesktop.org,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-tegra@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 2/3] drm/ttm: introduce dma cache sync helpers
Date: Tue, 24 Jun 2014 11:02:20 +0100 [thread overview]
Message-ID: <20140624100220.GK32514@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1403603667-11302-3-git-send-email-acourbot@nvidia.com>
On Tue, Jun 24, 2014 at 06:54:26PM +0900, Alexandre Courbot wrote:
> From: Lucas Stach <dev@lynxeye.de>
>
> On architectures for which access to GPU memory is non-coherent,
> caches need to be flushed and invalidated explicitly at the
> appropriate places. Introduce two small helpers to make things
> easy for TTM-based drivers.
Have you run this with DMA API debugging enabled? I suspect you haven't,
and I recommend that you do.
--
FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly
improving, and getting towards what was expected from it.
next prev parent reply other threads:[~2014-06-24 10:02 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-24 9:54 [PATCH v2 0/3] drm/ttm: nouveau: memory coherency for ARM Alexandre Courbot
2014-06-24 9:54 ` [PATCH v2 1/3] drm/ttm: recognize ARM arch in ioprot handler Alexandre Courbot
2014-06-24 9:54 ` [PATCH v2 2/3] drm/ttm: introduce dma cache sync helpers Alexandre Courbot
2014-06-24 10:02 ` Russell King - ARM Linux [this message]
2014-06-24 10:33 ` Alexandre Courbot
2014-06-24 10:55 ` Alexandre Courbot
2014-06-24 12:23 ` Alexandre Courbot
2014-06-24 12:27 ` [Nouveau] " Maarten Lankhorst
2014-06-24 13:25 ` Lucas Stach
2014-06-24 13:52 ` Alexandre Courbot
2014-06-24 13:58 ` Lucas Stach
2014-06-24 14:03 ` Alexandre Courbot
2014-06-26 14:50 ` Alexandre Courbot
2014-06-25 4:00 ` Stéphane Marchesin
2014-06-26 14:53 ` Alexandre Courbot
2014-06-26 16:10 ` Russell King - ARM Linux
2014-06-26 23:17 ` Alexandre Courbot
2014-06-27 12:08 ` Rob Clark
2014-06-24 13:09 ` Russell King - ARM Linux
2014-06-24 13:25 ` Alexandre Courbot
2014-06-24 9:54 ` [PATCH v2 3/3] drm/nouveau: hook up cache sync functions Alexandre Courbot
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