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path: root/drivers/gpu/drm/i915/gt/intel_context.c
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Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_context.c')
-rw-r--r--drivers/gpu/drm/i915/gt/intel_context.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_context.c b/drivers/gpu/drm/i915/gt/intel_context.c
index 92a3f25c4006..349e7fa1488d 100644
--- a/drivers/gpu/drm/i915/gt/intel_context.c
+++ b/drivers/gpu/drm/i915/gt/intel_context.c
@@ -25,11 +25,18 @@ static struct intel_context *intel_context_alloc(void)
return kmem_cache_zalloc(global.slab_ce, GFP_KERNEL);
}
-void intel_context_free(struct intel_context *ce)
+static void rcu_context_free(struct rcu_head *rcu)
{
+ struct intel_context *ce = container_of(rcu, typeof(*ce), rcu);
+
kmem_cache_free(global.slab_ce, ce);
}
+void intel_context_free(struct intel_context *ce)
+{
+ call_rcu(&ce->rcu, rcu_context_free);
+}
+
struct intel_context *
intel_context_create(struct intel_engine_cs *engine)
{
@@ -356,8 +363,7 @@ static int __intel_context_active(struct i915_active *active)
}
void
-intel_context_init(struct intel_context *ce,
- struct intel_engine_cs *engine)
+intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine)
{
GEM_BUG_ON(!engine->cops);
GEM_BUG_ON(!engine->gt->vm);
@@ -373,7 +379,8 @@ intel_context_init(struct intel_context *ce,
ce->vm = i915_vm_get(engine->gt->vm);
- INIT_LIST_HEAD(&ce->signal_link);
+ /* NB ce->signal_link/lock is used under RCU */
+ spin_lock_init(&ce->signal_lock);
INIT_LIST_HEAD(&ce->signals);
mutex_init(&ce->pin_mutex);