drm/ttm: move ttm_tt_{add, clear}_mapping into amdgpu

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Now that setting page->index shouldn't be needed anymore, we are just
left with setting page->mapping, and here it looks like amdgpu is the
only user, where pointing the page->mapping at the dev_mapping is used
to verify that the pages do indeed belong to the device, if userspace
later tries to touch them.

v2(Christian):
  - Drop the functions altogether and just inline modifying
    the page->mapping

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210927114114.152310-3-matthew.auld@intel.com
Signed-off-by: Christian König <christian.koenig@amd.com>

...

This commit is contained in:

Matthew Auld 2021-09-27 12:41:04 +01:00 • committed by Christian König

parent 635138f72e

commit 21856e1e34

2 changed files with 14 additions and 26 deletions

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15

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

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25

drivers/gpu/drm/ttm/ttm_tt.c

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