Comment # 11
on bug 107545
from Julien Isorce
I found time to go a bit further. Now I understand this radeon_cs_parser_init function a bit more If I comment the AGP condition here https://cgit.freedesktop.org/~agd5f/linux/tree/drivers/gpu/drm/radeon/radeon_cs.c?h=amd-staging-drm-next#n340 so that kdata is used then I can verify that the kdata contains the same data as user space. But when writing to parser->ib.ptr here https://cgit.freedesktop.org/~agd5f/linux/tree/drivers/gpu/drm/radeon/radeon_cs.c?h=amd-staging-drm-next#n648 then comparing parser->ib.ptr's data and kdata shows the same difference as pointed in comment #5. Could it be an issue with pcie (though is works with admgpu, well in fact it uses kdata on amdgpu) ? Is there anyway I can force a commit/flush just after it writes to parser->ib.ptr as a test even if it is slower ? thx!
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