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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-05 10:14:06 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-05 10:54:33 +0100 |
| commit | 2467658e2de3ca1dee6688b6b0b6f48263dfd532 (patch) | |
| tree | 449c45b07a7db5b37de4d16f587d3e009cf4316a /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 94558e265b9539b2ecec98d037bae51c902663c1 (diff) | |
drm/i915: Introduce i915_gem_active_wait_unlocked()
It is useful to be able to wait on pending rendering without grabbing
the struct_mutex. We can do this by using the i915_gem_active_get_rcu()
primitive to acquire a reference to the pending request without
requiring struct_mutex, just the RCU read lock, and then call
i915_wait_request().
v2: Rebase onto new i915_gem_active_get_unlocked() semantics that take
the RCU read lock on behalf of the caller.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470388464-28458-1-git-send-email-chris@chris-wilson.co.uk
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions