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

Marek Olšák <maraeo@xxxxxxxxx> · Wed, 9 Jan 2019 11:14:13 -0500

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

    Am 09.01.19 um 13:36 schrieb Marek
      Olšák:

            On Wed, Jan 9, 2019, 5:28 AM Christian König
              <ckoenig.leichtzumerken@xxxxxxxxx
              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

_______________________________________________
amd-gfx mailing list
amd-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/amd-gfx