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| author | John Harrison | 2014-11-24 19:49:28 +0100 |
|---|---|---|
| committer | Daniel Vetter | 2014-12-03 09:35:15 +0100 |
| commit | ff8658850aa9bdb5bc308ff8cce60c2558c58566 (patch) | |
| tree | 262cf11fdef631566cbbd1d6cefc4f47473487e0 /drivers/gpu/drm/gma500/intel_bios.c | |
| parent | drm/i915: Convert i915_gem_ring_throttle to use requests (diff) | |
| download | kernel-qcow2-linux-ff8658850aa9bdb5bc308ff8cce60c2558c58566.tar.gz kernel-qcow2-linux-ff8658850aa9bdb5bc308ff8cce60c2558c58566.tar.xz kernel-qcow2-linux-ff8658850aa9bdb5bc308ff8cce60c2558c58566.zip | |
drm/i915: Ensure requests stick around during waits
Added reference counting of the request structure around __wait_seqno() calls.
This is a precursor to updating the wait code itself to take the request rather
than a seqno. At that point, it would be a Bad Idea for a request object to be
retired and freed while the wait code is still using it.
v3:
Note that even though the mutex lock is held during a call to i915_wait_seqno(),
it is still necessary to explicitly bump the reference count. It appears that
the shrinker can asynchronously retire items even though the mutex is locked.
For: VIZ-4377
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Thomas Daniel <Thomas.Daniel@intel.com>
[danvet: Remove wrongly squashed hunk which breaks the build.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/gma500/intel_bios.c')
0 files changed, 0 insertions, 0 deletions