diff options
| author | Matthew Auld <[email protected]> | 2021-10-18 17:45:07 +0000 |
|---|---|---|
| committer | Matthew Auld <[email protected]> | 2021-10-20 15:50:25 +0000 |
| commit | 3884d8af9b3fcc0c41f04fbd4131be61101d4a4d (patch) | |
| tree | 22221ceaf9bf9bc1ade31a0c73dba3c8f17add2d /drivers/gpu/drm/i915/display/intel_dp_mst.c | |
| parent | drm/i915: expand on the kernel-doc for cache_dirty (diff) | |
| download | kernel-3884d8af9b3fcc0c41f04fbd4131be61101d4a4d.tar.gz kernel-3884d8af9b3fcc0c41f04fbd4131be61101d4a4d.zip | |
drm/i915: mark up internal objects with start_cpu_write
While the pages can't be swapped out, they can be discarded by the shrinker.
Normally such objects are marked with __I915_MADV_PURGED, which can't be
unset, and therefore requires a new object. For kernel internal objects
this is not true, since the madv hint is reset for our special volatile
objects, such that we can re-acquire new pages, if so desired, without
needing a new object. As a result we should probably be paranoid here
and put the object back into the CPU domain when discarding the pages,
and also correctly set cache_dirty, if required.
Signed-off-by: Matthew Auld <[email protected]>
Cc: Thomas Hellström <[email protected]>
Reviewed-by: Thomas Hellström <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
0 files changed, 0 insertions, 0 deletions