drm/amd/amdgpu: Partial revert of iova debugfs

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We discovered that on some devices even with iommu enabled
you can access all of system memory through the iommu translation.

Therefore, we revert the read method to the translation only service
and drop the write method completely.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christan König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Tom St Denis 2017-09-19 11:29:04 -04:00 • committed by Alex Deucher

parent a49ccdbd1d

commit 10cfafd62a

1 changed files with 13 additions and 77 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

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