From: "Terje Bergström" <tbergstrom@nvidia.com>
To: Alexandre Courbot <gnurou@gmail.com>,
Thierry Reding <thierry.reding@gmail.com>
Cc: "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>
Subject: Re: [PATCH v2 04/10] drm/nouveau/fb: add GK20A support
Date: Fri, 2 May 2014 09:26:08 +0300 [thread overview]
Message-ID: <53633A80.2040403@nvidia.com> (raw)
In-Reply-To: <CAAVeFuJrs8Sv9UZg=Tj6gJeHOXj9YSX4gT1TNdrfXvVfrBHerQ@mail.gmail.com>
On 01.05.2014 07:49, Alexandre Courbot wrote:
> Agreed. Besides I hope the day won't come where we have to go through
> 2 layers of memory translation for the GPU...
That's actually the method of operation that gives us the best
performance. GPU likes big pages, and without IOMMU translation you'd
have a hard time finding enough contiguous physical memory.
Terje
WARNING: multiple messages have this Message-ID (diff)
From: "Terje Bergström" <tbergstrom@nvidia.com>
To: Alexandre Courbot <gnurou@gmail.com>,
Thierry Reding <thierry.reding@gmail.com>
Cc: Alex Courbot <acourbot@nvidia.com>,
Ben Skeggs <bskeggs@redhat.com>,
"nouveau@lists.freedesktop.org" <nouveau@lists.freedesktop.org>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 04/10] drm/nouveau/fb: add GK20A support
Date: Fri, 2 May 2014 09:26:08 +0300 [thread overview]
Message-ID: <53633A80.2040403@nvidia.com> (raw)
In-Reply-To: <CAAVeFuJrs8Sv9UZg=Tj6gJeHOXj9YSX4gT1TNdrfXvVfrBHerQ@mail.gmail.com>
On 01.05.2014 07:49, Alexandre Courbot wrote:
> Agreed. Besides I hope the day won't come where we have to go through
> 2 layers of memory translation for the GPU...
That's actually the method of operation that gives us the best
performance. GPU likes big pages, and without IOMMU translation you'd
have a hard time finding enough contiguous physical memory.
Terje
next prev parent reply other threads:[~2014-05-02 6:26 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-21 6:02 [PATCH v2 00/10] drm/nouveau: support for GK20A, cont'd Alexandre Courbot
2014-04-21 6:02 ` Alexandre Courbot
[not found] ` <1398060142-7937-1-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-04-21 6:02 ` [PATCH v2 01/10] drm/nouveau/bar: only ioremap BAR3 if it exists Alexandre Courbot
2014-04-21 6:02 ` Alexandre Courbot
2014-04-21 6:02 ` [PATCH v2 02/10] drm/nouveau/bar/nvc0: support chips without BAR3 Alexandre Courbot
2014-04-21 6:02 ` Alexandre Courbot
2014-04-21 6:02 ` [PATCH v2 03/10] drm/nouveau/ibus: add GK20A support Alexandre Courbot
2014-04-21 6:02 ` Alexandre Courbot
2014-04-21 6:02 ` [PATCH v2 04/10] drm/nouveau/fb: " Alexandre Courbot
2014-04-21 6:02 ` Alexandre Courbot
[not found] ` <1398060142-7937-5-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-04-22 10:40 ` Thierry Reding
2014-04-22 10:40 ` Thierry Reding
2014-04-23 2:07 ` Alexandre Courbot
2014-04-23 2:07 ` Alexandre Courbot
[not found] ` <53572077.6090305-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-04-23 6:11 ` Alexandre Courbot
2014-04-23 6:11 ` Alexandre Courbot
[not found] ` <CAAVeFuKscuN-=HJOarbzFkG1ARq6-Nfc2pf1ibam9b61Cjbs6Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-04-28 11:44 ` Thierry Reding
2014-04-28 11:44 ` Thierry Reding
2014-05-01 4:49 ` Alexandre Courbot
2014-05-01 4:49 ` Alexandre Courbot
2014-05-02 6:26 ` Terje Bergström [this message]
2014-05-02 6:26 ` Terje Bergström
2014-04-21 6:02 ` [PATCH v2 06/10] drm/nouveau/graph: enable when using external firmware Alexandre Courbot
2014-04-21 6:02 ` Alexandre Courbot
2014-04-21 6:02 ` [PATCH v2 07/10] drm/nouveau/graph: pad firmware code at load time Alexandre Courbot
2014-04-21 6:02 ` Alexandre Courbot
2014-04-21 18:03 ` Ilia Mirkin
2014-04-21 18:03 ` Ilia Mirkin
[not found] ` <CAKb7UviQ6s8wRqwLVnE_A0NOw=WcVdFXG_wWmnZypwuaW_hnuw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-04-21 23:48 ` Ben Skeggs
2014-04-21 23:48 ` Ben Skeggs
[not found] ` <CACAvsv7J7yUaug=CoUfsPg5PXf=ZmwUD9XvCt4CqAvnamQNN9A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-04-22 2:08 ` Alexandre Courbot
2014-04-22 2:08 ` Alexandre Courbot
2014-04-21 6:02 ` [PATCH v2 08/10] drm/nouveau/graph: add GK20A support Alexandre Courbot
2014-04-21 6:02 ` Alexandre Courbot
2014-04-21 6:02 ` [PATCH v2 09/10] drm/nouveau: support GK20A in nouveau_accel_init() Alexandre Courbot
2014-04-21 6:02 ` Alexandre Courbot
[not found] ` <1398060142-7937-10-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-04-21 18:07 ` [Nouveau] " Ilia Mirkin
2014-04-21 18:07 ` Ilia Mirkin
2014-04-22 1:58 ` Ben Skeggs
2014-04-22 1:58 ` Ben Skeggs
[not found] ` <CAKb7Uvg4kOfsE0gd4zLcwjShc4eVgVKA7zQM2r1aeatOybm8NQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-04-22 2:31 ` Alexandre Courbot
2014-04-22 2:31 ` [Nouveau] " Alexandre Courbot
2014-04-21 6:02 ` [PATCH v2 05/10] drm/nouveau/fifo: add GK20A support Alexandre Courbot
2014-04-21 6:02 ` Alexandre Courbot
2014-04-21 6:02 ` [PATCH v2 10/10] drm/nouveau: support for probing GK20A Alexandre Courbot
2014-04-21 6:02 ` Alexandre Courbot
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