Am 09.04.2018 um 17:17 schrieb Jean-Marc Valin:
On 04/09/2018 05:42 AM, Christian König wrote:
Backporting all the detection logic is to invasive, but you could just
go into drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c and forcefull use the
other code path.
Just look out for "#ifdef CONFIG_SWIOTLB" checks and disable those.
Do you mean just taking the 4.15 code as is and replacing
"#ifdef CONFIG_SWIOTLB" with "#if 0" in
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c or are you talking about using a
different version of drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c ?
Yes, exactly. The code then won't work any more on some ARMs or systems
with more than 1TB of memory, but I don't think you care about that :)
Christian.
Jean-Marc
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