drm/amd/amdgpu: add support for iova_to_phys to replace TTM trace (v5)

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

(v2): Add domain to iova debugfs
(v3): Add true read/write methods to access system memory of pages
      mapped to the device
(v4): Move get_domain call out of loop and return on error
(v5): Just use kmap/kunmap

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Tom St Denis 2017-09-18 07:28:14 -04:00 • committed by Alex Deucher

parent a40cfa0bef

commit 38290b2c45

1 changed files with 99 additions and 0 deletions

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

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