[PATCH] drm/amdgpu: Add AMDGPU_GPU_PAGES_IN_CPU_PAGE define

[Zhou, David(ChunMing)]

current amdgpu driver indeed always set GPU PAGE SIZE is 4096.
In fact, our gpu supports bigger page size like 64KB, just we don't use it. I remeber previous amdsoc(old android kernel driver) used 64KB.

correct me if I'm wrong.


send from Smartisan Pro

Michel D鋘zer <michel at daenzer.net> 于 2018年6月25日 下午5:10写道：

On 2018-06-25 03:56 AM, zhoucm1 wrote:
> one question to you:
>
> Did you consider the case that GPU_PAGE_SIZE > CPU_PAGE_SIZE?

That is never the case: AMDGPU_GPU_PAGE_SIZE is always 4096, and
PAGE_SIZE is always >= 4096 (an integer multiple of it).


--
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer
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