mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
d51dafaf07
During i915_gem_timeline_fini(), assert that all the timeline's request are completed and removed from the timeline. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170105153023.30575-1-chris@chris-wilson.co.uk
98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
/*
|
|
* Copyright © 2016 Intel Corporation
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include "i915_drv.h"
|
|
|
|
static int __i915_gem_timeline_init(struct drm_i915_private *i915,
|
|
struct i915_gem_timeline *timeline,
|
|
const char *name,
|
|
struct lock_class_key *lockclass,
|
|
const char *lockname)
|
|
{
|
|
unsigned int i;
|
|
u64 fences;
|
|
|
|
lockdep_assert_held(&i915->drm.struct_mutex);
|
|
|
|
timeline->i915 = i915;
|
|
timeline->name = kstrdup(name ?: "[kernel]", GFP_KERNEL);
|
|
if (!timeline->name)
|
|
return -ENOMEM;
|
|
|
|
list_add(&timeline->link, &i915->gt.timelines);
|
|
|
|
/* Called during early_init before we know how many engines there are */
|
|
fences = dma_fence_context_alloc(ARRAY_SIZE(timeline->engine));
|
|
for (i = 0; i < ARRAY_SIZE(timeline->engine); i++) {
|
|
struct intel_timeline *tl = &timeline->engine[i];
|
|
|
|
tl->fence_context = fences++;
|
|
tl->common = timeline;
|
|
#ifdef CONFIG_DEBUG_SPINLOCK
|
|
__raw_spin_lock_init(&tl->lock.rlock, lockname, lockclass);
|
|
#else
|
|
spin_lock_init(&tl->lock);
|
|
#endif
|
|
init_request_active(&tl->last_request, NULL);
|
|
INIT_LIST_HEAD(&tl->requests);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int i915_gem_timeline_init(struct drm_i915_private *i915,
|
|
struct i915_gem_timeline *timeline,
|
|
const char *name)
|
|
{
|
|
static struct lock_class_key class;
|
|
|
|
return __i915_gem_timeline_init(i915, timeline, name,
|
|
&class, "&timeline->lock");
|
|
}
|
|
|
|
int i915_gem_timeline_init__global(struct drm_i915_private *i915)
|
|
{
|
|
static struct lock_class_key class;
|
|
|
|
return __i915_gem_timeline_init(i915,
|
|
&i915->gt.global_timeline,
|
|
"[execution]",
|
|
&class, "&global_timeline->lock");
|
|
}
|
|
|
|
void i915_gem_timeline_fini(struct i915_gem_timeline *timeline)
|
|
{
|
|
int i;
|
|
|
|
lockdep_assert_held(&timeline->i915->drm.struct_mutex);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(timeline->engine); i++) {
|
|
struct intel_timeline *tl = &timeline->engine[i];
|
|
|
|
GEM_BUG_ON(!list_empty(&tl->requests));
|
|
}
|
|
|
|
list_del(&timeline->link);
|
|
kfree(timeline->name);
|
|
}
|