Re: [PATCH libdrm 1/2] amdgpu: prevent an integer wraparound of cpu_map_count

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On Tue, Oct 30, 2018, 4:20 AM Michel Dänzer <michel@xxxxxxxxxxx> wrote:
On 2018-10-29 10:15 p.m., Marek Olšák wrote:
> You and I discussed this extensively internally a while ago. It's expected
> and correct behavior. Mesa doesn't unmap some buffers and never will.

It doesn't need to keep mapping the same buffer over and over again
though, does it?

It doesnt map it again. It just doesnt unmap. So the next map call just returns the pointer. It's correct to stop the counter wraparound.

Marek



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