To improve cpu read performance. This is implemented for APUs currently.
Change-Id: I300a7daed8f2b0ba6be71a43196a6b8617ddc62e
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 +
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 10 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
Am 29.11.2017 um 01:20 schrieb Samuel Li:
To improve cpu read performance. This is implemented for APUs currently.
And once more a NAK for this approach.
What we could do is migrate the BO to GTT during mmap, but pinning it is
out of question.
Regards,
Christian.
Change-Id: I300a7daed8f2
Christian König [mailto:ckoenig.leichtzumer...@gmail.com]
Sent: Wednesday, November 29, 2017 4:39 AM
To: Li, Samuel ; amd-gfx@lists.freedesktop.org
Subject: Re: [PATCH 1/1] drm/amdgpu: Pin to gtt before cpu accesses dma
buf.
Am 29.11.2017 um 01:20 schrieb Samuel Li:
To improve cpu read performanc
gt; Subject: Re: [PATCH 1/1] drm/amdgpu: Pin to gtt before cpu accesses dma
> buf.
>
> And exactly that's the reason why it is a no-go.
>
> Scanning out from GTT isn't supported at the moment.
>
> Christian.
>
> Am 29.11.2017 um 15:48 schrieb Li, Samuel:
>
9, 2017 9:54 AM
To: Li, Samuel ; amd-gfx@lists.freedesktop.org
Subject: Re: [PATCH 1/1] drm/amdgpu: Pin to gtt before cpu accesses dma
buf.
And exactly that's the reason why it is a no-go.
Scanning out from GTT isn't supported at the moment.
Christian.
Am 29.11.2017 um 15:48 schrieb
gt; Subject: Re: [PATCH 1/1] drm/amdgpu: Pin to gtt before cpu accesses dma
> buf.
>
> Am 29.11.2017 um 01:20 schrieb Samuel Li:
> > To improve cpu read performance. This is implemented for APUs currently.
>
> And once more a NAK for this approach.
>
> What we could do
> -Original Message-
> From: Koenig, Christian
> Sent: Wednesday, November 29, 2017 10:01 AM
> To: Li, Samuel ; amd-gfx@lists.freedesktop.org
> Subject: Re: [PATCH 1/1] drm/amdgpu: Pin to gtt before cpu accesses dma
> buf.
>
> > What is the concern for scann
-
From: Koenig, Christian
Sent: Wednesday, November 29, 2017 9:54 AM
To: Li, Samuel ; amd-gfx@lists.freedesktop.org
Subject: Re: [PATCH 1/1] drm/amdgpu: Pin to gtt before cpu accesses
dma buf.
And exactly that's the reason why it is a no-go.
Scanning out from GTT isn't supported at the
