Mhm, good catch.
And yes using the paging queue when it is available sounds like a good
idea to me as well.
So far I've only used it for VM updates to actually test if it works as
expected.
Regards,
Christian.
Am 19.10.18 um 21:53 schrieb Kuehling, Felix:
> [+Christian]
>
> Should the buffer
Reviewed-by: Alex Deucher
From: amd-gfx on behalf of Yang, Philip
Sent: Friday, October 19, 2018 3:13:56 PM
To: amd-gfx@lists.freedesktop.org
Cc: Yang, Philip
Subject: [PATCH] drm/amdgpu: fix sdma v4 ring is disabled accidently
For sdma v4, there is bug
[+Christian]
Should the buffer funcs also use the paging ring? I think that would be
important for being able to clear page tables or migrating a BO while
handling a page fault.
Regards,
Felix
On 2018-10-19 3:13 p.m., Yang, Philip wrote:
> For sdma v4, there is bug caused by
> commit
For sdma v4, there is bug caused by
commit d4e869b6b5d6 ("drm/amdgpu: add ring test for page queue")'
local variable ring is reused and changed, so
amdgpu_ttm_set_buffer_funcs_status(adev, true)
is skipped accidently. As a result, amdgpu_fill_buffer() will fail, kernel
message:
