From: Joonyoung Shim <jy0922.shim@samsung.com>
To: Dave Airlie <airlied@gmail.com>
Cc: Inki Dae <inki.dae@samsung.com>,
kyungmin.park@samsung.com, sw0312.kim@samsung.com,
dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 09/10] drm/exynos: add G2D driver
Date: Thu, 15 Mar 2012 20:05:49 +0900 [thread overview]
Message-ID: <4F61CD0D.60601@samsung.com> (raw)
In-Reply-To: <CAPM=9tzQKidgyGjEcnq92L7MCD6rd2gHDuauk4O9bNKmjEoc0A@mail.gmail.com>
On 03/15/2012 07:50 PM, Dave Airlie wrote:
>> G2D is a 2D graphic accelerator that supports Bit Block Transfer. This
>> G2D driver is exynos drm specific and supports only exynos4x12 series.
>> user application fills command set in cmdlist and once dma start request
>> these cmdlists are parsed and performed by dma.
> Where is this block documented or a pointer to the corresponding open
> userspace user code?
>
> Again the ioctls look like they need to be depointered and use __u64.
>
> It would be nice if you could document how the command stream and engine work.
>
> How does userspace pass addresses to it? straight or via gem objects?
> how does it
> stop userspace blt to places it shouldn't etc.
>
> I'm getting the feeling this accel enabled driver needs a lot more of
> a commit message
> and lot more documentation on what it can be used for.
OK, i will update the more documentation and simple user space program.
Thanks.
next prev parent reply other threads:[~2012-03-15 11:05 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-13 14:46 [PATCH 00/10] updated exynos-drm-next Inki Dae
2012-03-13 14:46 ` [PATCH 01/10] drm/exynos: add HDMI version 1.4 support Inki Dae
2012-03-13 14:46 ` [PATCH 02/10] drm/exynos: added mode_fixup feature and code clean Inki Dae
2012-03-15 10:39 ` Dave Airlie
2012-03-15 11:21 ` Inki Dae
2012-03-16 4:52 ` InKi Dae
2012-03-13 14:46 ` [PATCH 03/10] drm/exynos: added buffer allocation type Inki Dae
2012-03-13 14:46 ` [PATCH 04/10] drm/exynos: added new funtion to get/put dma address Inki Dae
2012-03-13 14:46 ` [PATCH 05/10] drm/exynos: release pending pageflip events when closed Inki Dae
2012-03-13 14:47 ` [PATCH 06/10] drm/exynos: remove module of exynos drm subdrv Inki Dae
2012-03-13 14:47 ` [PATCH 07/10] drm/exynos: add subdrv open/close functions Inki Dae
2012-03-13 14:47 ` [PATCH 08/10] drm/exynos: add is_local member in exynos_drm_subdrv struct Inki Dae
2012-03-13 14:47 ` [PATCH 09/10] drm/exynos: add G2D driver Inki Dae
2012-03-15 10:50 ` Dave Airlie
2012-03-15 11:05 ` Joonyoung Shim [this message]
2012-03-16 6:28 ` Joonyoung Shim
2013-01-20 17:33 ` Rob Clark
2013-01-22 1:33 ` Inki Dae
2013-01-22 1:41 ` Rob Clark
2012-03-13 14:47 ` [PATCH 10/10] drm/exynos: added virtual display driver Inki Dae
2012-03-15 10:44 ` Dave Airlie
2012-03-15 11:36 ` Inki Dae
2012-03-15 11:43 ` David Airlie
2012-03-15 12:01 ` Inki Dae
2012-03-13 15:00 ` [RESEND][PATCH 01/10] drm/exynos: add HDMI version 1.4 support Inki Dae
2012-03-13 15:00 ` [RESEND][PATCH 09/10] drm/exynos: add G2D driver Inki Dae
2012-03-15 10:52 ` [RESEND][PATCH 01/10] drm/exynos: add HDMI version 1.4 support Dave Airlie
2012-03-15 10:59 ` Joonyoung Shim
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