[PATCH 09/10] drm/exynos: add G2D driver

[Rob Clark]

I don't suppose you could send a libdrm patch to the list with an up
to date version of the g2dtest code so we can get it in libdrm tree?

BR,
-R

On Fri, Mar 16, 2012 at 1:28 AM, Joonyoung Shim <jy0922.shim at samsung.com> wrote:
> 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?
>
>
> I attach simple g2dtest program patch. The base of this patch is master
> branch of lastest libdrm git.
>
> This user progrem can test just solid color fill example.
> I will cleanup and update it for more operations later.
>
> Thanks.
>
>
>> 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.
>>
>> Dave.
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>>
>
>
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