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drm/i915: Leave engine parking to the engines 

Drop the check in GEM parking that the engines were already parked. The
intention here was that before we dropped the GT wakeref, we were sure
that no more interrupts could be raised -- however, we have already
dropped the wakeref by this point and the warning is no longer valid.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190502150024.16636-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-05-02 16:00:24 +01:00
parent c34c5bca33
commit d69ebf4082
1 changed files with 1 additions and 17 deletions
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18
drivers/gpu/drm/i915/i915_gem_pm.c
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@ -17,24 +17,8 @@ static void i915_gem_park(struct drm_i915_private *i915)
lockdep_assert_held(&i915->drm.struct_mutex);
for_each_engine(engine, i915, id) {
/*
* We are committed now to parking the engines, make sure there
* will be no more interrupts arriving later and the engines
* are truly idle.
*/
if (wait_for(intel_engine_is_idle(engine), 10)) {
struct drm_printer p = drm_debug_printer(__func__);
dev_err(i915->drm.dev,
"%s is not idle before parking\n",
engine->name);
intel_engine_dump(engine, &p, NULL);
}
tasklet_kill(&engine->execlists.tasklet);
for_each_engine(engine, i915, id)
i915_gem_batch_pool_fini(&engine->batch_pool);
}
i915_timelines_park(i915);
i915_vma_parked(i915);