Am 15.06.2018 um 17:12 schrieb Michel Dänzer:
On 2018-06-15 05:05 PM, Christian König wrote:
Am 15.06.2018 um 16:27 schrieb Michel Dänzer:
From: Michel Dänzer <michel.daen...@amd.com>
It can be quite big, and there's no need for it to be physically
contiguous. This is less likely to fail under memory pressure (has
actually happened while running piglit).
Mhm, the last time I looked a drm_mm node had around 160 bytes, which
means that you need to allocate more than 50MB of VRAM to fill up a 4K
page.
I'm attaching the failure that prompted me to write this patch. It was
trying to allocate order 5, i.e. more than 16 pages / 64 KB.
Wow, that means piglit is at some point allocating a texture of at least
800MB. Something to keep in mind when sizing stuff in the MM.
Well the extra overhead is negligible for small allocations and the use
case sounds valid.
Patch is Reviewed-by: Christian König <christian.koe...@amd.com>.
Regards,
Christian.
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