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author | Rob Herring <robh@kernel.org> | 2019-10-24 14:18:59 -0500 |
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committer | Rob Herring <robh@kernel.org> | 2019-10-29 13:29:21 -0500 |
commit | 83b8a6f242ea6b4eafe69afcd0bfa428235f2ee4 (patch) | |
tree | e9ffbb31af9d5d19de02d4dc509f3b8be7e39499 /tools/testing/selftests/dmabuf-heaps | |
parent | drm/panfrost: Simplify devfreq utilisation tracking (diff) | |
download | linux-dev-83b8a6f242ea6b4eafe69afcd0bfa428235f2ee4.tar.xz linux-dev-83b8a6f242ea6b4eafe69afcd0bfa428235f2ee4.zip |
drm/gem: Fix mmap fake offset handling for drm_gem_object_funcs.mmap
Commit c40069cb7bd6 ("drm: add mmap() to drm_gem_object_funcs")
introduced a GEM object mmap() hook which is expected to subtract the
fake offset from vm_pgoff. However, for mmap() on dmabufs, there is not
a fake offset.
To fix this, let's always call mmap() object callback with an offset of 0,
and leave it up to drm_gem_mmap_obj() to remove the fake offset.
TTM still needs the fake offset, so we have to add it back until that's
fixed.
Fixes: c40069cb7bd6 ("drm: add mmap() to drm_gem_object_funcs")
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191024191859.31700-1-robh@kernel.org
Diffstat (limited to 'tools/testing/selftests/dmabuf-heaps')
0 files changed, 0 insertions, 0 deletions