From: Alexandre Courbot <acourbot@nvidia.com>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: "gnurou@gmail.com" <gnurou@gmail.com>,
"nouveau@lists.freedesktop.org" <nouveau@lists.freedesktop.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
Ben Skeggs <bskeggs@redhat.com>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.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 19:33:10 +0900 [thread overview]
Message-ID: <53A953E6.2030503@nvidia.com> (raw)
In-Reply-To: <20140624100220.GK32514@n2100.arm.linux.org.uk>
On 06/24/2014 07:02 PM, Russell King - ARM Linux wrote:
> 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.
# cat /sys/kernel/debug/dma-api/error_count
162621
(╯°□°）╯︵ ┻━┻)
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel
WARNING: multiple messages have this Message-ID (diff)
From: acourbot@nvidia.com (Alexandre Courbot)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/3] drm/ttm: introduce dma cache sync helpers
Date: Tue, 24 Jun 2014 19:33:10 +0900 [thread overview]
Message-ID: <53A953E6.2030503@nvidia.com> (raw)
In-Reply-To: <20140624100220.GK32514@n2100.arm.linux.org.uk>
On 06/24/2014 07:02 PM, Russell King - ARM Linux wrote:
> 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.
# cat /sys/kernel/debug/dma-api/error_count
162621
(??????? ???)
WARNING: multiple messages have this Message-ID (diff)
From: Alexandre Courbot <acourbot@nvidia.com>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
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" <gnurou@gmail.com>,
"nouveau@lists.freedesktop.org" <nouveau@lists.freedesktop.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.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 19:33:10 +0900 [thread overview]
Message-ID: <53A953E6.2030503@nvidia.com> (raw)
In-Reply-To: <20140624100220.GK32514@n2100.arm.linux.org.uk>
On 06/24/2014 07:02 PM, Russell King - ARM Linux wrote:
> 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.
# cat /sys/kernel/debug/dma-api/error_count
162621
(╯°□°）╯︵ ┻━┻)
next prev parent reply other threads:[~2014-06-24 10:33 UTC|newest]
Thread overview: 63+ 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 ` Alexandre Courbot
2014-06-24 9:54 ` 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 ` Alexandre Courbot
2014-06-24 9:54 ` Alexandre Courbot
[not found] ` <1403603667-11302-1-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-06-24 9:54 ` [PATCH v2 2/3] drm/ttm: introduce dma cache sync helpers Alexandre Courbot
2014-06-24 9:54 ` Alexandre Courbot
2014-06-24 9:54 ` Alexandre Courbot
2014-06-24 10:02 ` Russell King - ARM Linux
2014-06-24 10:02 ` Russell King - ARM Linux
2014-06-24 10:02 ` Russell King - ARM Linux
2014-06-24 10:33 ` Alexandre Courbot [this message]
2014-06-24 10:33 ` Alexandre Courbot
2014-06-24 10:33 ` Alexandre Courbot
[not found] ` <53A953E6.2030503-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-06-24 10:55 ` Alexandre Courbot
2014-06-24 10:55 ` Alexandre Courbot
2014-06-24 10:55 ` Alexandre Courbot
[not found] ` <53A95910.20104-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-06-24 12:23 ` Alexandre Courbot
2014-06-24 12:23 ` Alexandre Courbot
2014-06-24 12:23 ` Alexandre Courbot
2014-06-24 12:27 ` [Nouveau] " Maarten Lankhorst
2014-06-24 12:27 ` Maarten Lankhorst
2014-06-24 12:27 ` Maarten Lankhorst
2014-06-24 13:25 ` Lucas Stach
2014-06-24 13:25 ` Lucas Stach
2014-06-24 13:25 ` Lucas Stach
[not found] ` <1403616338.4230.8.camel-WzVe3FnzCwFR6QfukMTsflXZhhPuCNm+@public.gmane.org>
2014-06-24 13:52 ` Alexandre Courbot
2014-06-24 13:52 ` [Nouveau] " Alexandre Courbot
2014-06-24 13:52 ` Alexandre Courbot
2014-06-24 13:58 ` Lucas Stach
2014-06-24 13:58 ` Lucas Stach
2014-06-24 13:58 ` Lucas Stach
[not found] ` <1403618295.4230.13.camel-WzVe3FnzCwFR6QfukMTsflXZhhPuCNm+@public.gmane.org>
2014-06-24 14:03 ` Alexandre Courbot
2014-06-24 14:03 ` [Nouveau] " Alexandre Courbot
2014-06-24 14:03 ` Alexandre Courbot
2014-06-26 14:50 ` Alexandre Courbot
2014-06-26 14:50 ` Alexandre Courbot
2014-06-26 14:50 ` Alexandre Courbot
2014-06-25 4:00 ` Stéphane Marchesin
2014-06-25 4:00 ` [Nouveau] " Stéphane Marchesin
2014-06-25 4:00 ` Stéphane Marchesin
[not found] ` <CACP_E+KECMyusuZd6hpzthL-RpfUOJpWh0EABf1DGAeaXc00aA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-06-26 14:53 ` Alexandre Courbot
2014-06-26 14:53 ` [Nouveau] " Alexandre Courbot
2014-06-26 14:53 ` Alexandre Courbot
[not found] ` <CAAVeFuLU04rk1DWMhVJV=ktVCpq4js38p1ipCr1jh1x72b=GZw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-06-26 16:10 ` Russell King - ARM Linux
2014-06-26 16:10 ` [Nouveau] " Russell King - ARM Linux
2014-06-26 16:10 ` Russell King - ARM Linux
[not found] ` <20140626161055.GX32514-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2014-06-26 23:17 ` Alexandre Courbot
2014-06-26 23:17 ` [Nouveau] " Alexandre Courbot
2014-06-26 23:17 ` Alexandre Courbot
2014-06-27 12:08 ` Rob Clark
2014-06-27 12:08 ` Rob Clark
2014-06-27 12:08 ` Rob Clark
2014-06-24 13:09 ` Russell King - ARM Linux
2014-06-24 13:09 ` Russell King - ARM Linux
2014-06-24 13:09 ` Russell King - ARM Linux
[not found] ` <20140624130930.GN32514-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2014-06-24 13:25 ` Alexandre Courbot
2014-06-24 13:25 ` Alexandre Courbot
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
2014-06-24 9:54 ` Alexandre Courbot
2014-06-24 9:54 ` Alexandre Courbot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=53A953E6.2030503@nvidia.com \
--to=acourbot@nvidia.com \
--cc=bskeggs@redhat.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=gnurou@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=nouveau@lists.freedesktop.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.