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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
104 lines
2.3 KiB
C
104 lines
2.3 KiB
C
// SPDX-License-Identifier: MIT
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/* Copyright © 2025 Intel Corporation */
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#include "i915_drv.h"
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#include "i915_gem_object_frontbuffer.h"
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static int frontbuffer_active(struct i915_active *ref)
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{
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struct i915_frontbuffer *front =
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container_of(ref, typeof(*front), write);
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kref_get(&front->ref);
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return 0;
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}
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static void frontbuffer_retire(struct i915_active *ref)
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{
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struct i915_frontbuffer *front =
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container_of(ref, typeof(*front), write);
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intel_frontbuffer_flush(&front->base, ORIGIN_CS);
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i915_gem_object_frontbuffer_put(front);
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}
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struct i915_frontbuffer *
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i915_gem_object_frontbuffer_get(struct drm_i915_gem_object *obj)
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{
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struct drm_i915_private *i915 = to_i915(obj->base.dev);
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struct i915_frontbuffer *front, *cur;
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front = i915_gem_object_frontbuffer_lookup(obj);
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if (front)
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return front;
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front = kmalloc_obj(*front);
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if (!front)
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return NULL;
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intel_frontbuffer_init(&front->base, &i915->drm);
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kref_init(&front->ref);
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i915_gem_object_get(obj);
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front->obj = obj;
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i915_active_init(&front->write,
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frontbuffer_active,
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frontbuffer_retire,
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I915_ACTIVE_RETIRE_SLEEPS);
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spin_lock(&i915->frontbuffer_lock);
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if (rcu_access_pointer(obj->frontbuffer)) {
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cur = rcu_dereference_protected(obj->frontbuffer, true);
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kref_get(&cur->ref);
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} else {
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cur = front;
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rcu_assign_pointer(obj->frontbuffer, front);
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}
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spin_unlock(&i915->frontbuffer_lock);
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if (cur != front) {
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i915_gem_object_put(obj);
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intel_frontbuffer_fini(&front->base);
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kfree(front);
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}
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return cur;
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}
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void i915_gem_object_frontbuffer_ref(struct i915_frontbuffer *front)
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{
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kref_get(&front->ref);
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}
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static void frontbuffer_release(struct kref *ref)
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__releases(&i915->frontbuffer_lock)
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{
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struct i915_frontbuffer *front =
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container_of(ref, typeof(*front), ref);
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struct drm_i915_gem_object *obj = front->obj;
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struct drm_i915_private *i915 = to_i915(obj->base.dev);
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i915_ggtt_clear_scanout(obj);
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RCU_INIT_POINTER(obj->frontbuffer, NULL);
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spin_unlock(&i915->frontbuffer_lock);
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i915_active_fini(&front->write);
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i915_gem_object_put(obj);
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intel_frontbuffer_fini(&front->base);
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kfree_rcu(front, rcu);
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}
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void i915_gem_object_frontbuffer_put(struct i915_frontbuffer *front)
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{
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struct drm_i915_private *i915 = to_i915(front->obj->base.dev);
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kref_put_lock(&front->ref, frontbuffer_release,
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&i915->frontbuffer_lock);
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}
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