[PATCH libdrm] amdgpu: add a faster BO list API

Marek Olšák maraeo at gmail.com
Wed Jan 9 16:14:13 UTC 2019


On Wed, Jan 9, 2019 at 8:09 AM Christian König <
ckoenig.leichtzumerken at gmail.com> wrote:

> Am 09.01.19 um 13:36 schrieb Marek Olšák:
>
>
>
> On Wed, Jan 9, 2019, 5:28 AM Christian König <
> ckoenig.leichtzumerken at gmail.com wrote:
>
>> Looks good, but I'm wondering what's the actual improvement?
>>
>
> No malloc calls and 1 less for loop copying the bo list.
>
>
> Yeah, but didn't we want to get completely rid of the bo list?
>

If we have multiple IBs (e.g. gfx + compute) that share a BO list, I think
it's faster to send the BO list to the kernel only once.

Marek
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