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drm/i915/gem: Lazily acquire the device wakeref for freeing objects

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We only need the device wakeref on freeing the objects if we have to
unbind the object from the global GTT, or otherwise update device
information. If the objects are clean, we never need the wakeref, so
avoid taking until required.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200503171513.18704-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2020-05-03 18:15:13 +01:00
parent 389b7f00c7
commit 6983dafa31
1 changed files with 0 additions and 3 deletions
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3
drivers/gpu/drm/i915/gem/i915_gem_object.c
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@ -162,9 +162,7 @@ static void __i915_gem_free_objects(struct drm_i915_private *i915,
struct llist_node *freed)
{
struct drm_i915_gem_object *obj, *on;
intel_wakeref_t wakeref;
wakeref = intel_runtime_pm_get(&i915->runtime_pm);
llist_for_each_entry_safe(obj, on, freed, freed) {
struct i915_mmap_offset *mmo, *mn;
@ -224,7 +222,6 @@ static void __i915_gem_free_objects(struct drm_i915_private *i915,
call_rcu(&obj->rcu, __i915_gem_free_object_rcu);
cond_resched();
}
intel_runtime_pm_put(&i915->runtime_pm, wakeref);
}
void i915_gem_flush_free_objects(struct drm_i915_private *i915)