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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2019-11-20 17:08:58 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-11-20 17:12:11 +0000 |
| commit | 88cec4973de1d096282565779bbd9d5c6412a293 (patch) | |
| tree | 8e8ee117a10ea0f7a5a52c0bf820a9b829c0af15 /drivers/gpu/drm/i915/gt/intel_gt_requests.c | |
| parent | drm/i915/gt: Unlock engine-pm after queuing the kernel context switch (diff) | |
| download | linux-dev-88cec4973de1d096282565779bbd9d5c6412a293.tar.xz linux-dev-88cec4973de1d096282565779bbd9d5c6412a293.zip | |
drm/i915/gt: Declare timeline.lock to be irq-free
Now that we never allow the intel_wakeref callbacks to be invoked from
interrupt context, we do not need the irqsafe spinlock for the timeline.
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/20191120170858.3965380-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_gt_requests.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_gt_requests.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_requests.c b/drivers/gpu/drm/i915/gt/intel_gt_requests.c index 1a005da8c588..4dc3cbeb1b36 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_requests.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_requests.c @@ -33,7 +33,6 @@ long intel_gt_retire_requests_timeout(struct intel_gt *gt, long timeout) { struct intel_gt_timelines *timelines = >->timelines; struct intel_timeline *tl, *tn; - unsigned long flags; bool interruptible; LIST_HEAD(free); @@ -43,7 +42,7 @@ long intel_gt_retire_requests_timeout(struct intel_gt *gt, long timeout) flush_submission(gt); /* kick the ksoftirqd tasklets */ - spin_lock_irqsave(&timelines->lock, flags); + spin_lock(&timelines->lock); list_for_each_entry_safe(tl, tn, &timelines->active_list, link) { if (!mutex_trylock(&tl->mutex)) continue; @@ -51,7 +50,7 @@ long intel_gt_retire_requests_timeout(struct intel_gt *gt, long timeout) intel_timeline_get(tl); GEM_BUG_ON(!atomic_read(&tl->active_count)); atomic_inc(&tl->active_count); /* pin the list element */ - spin_unlock_irqrestore(&timelines->lock, flags); + spin_unlock(&timelines->lock); if (timeout > 0) { struct dma_fence *fence; @@ -67,7 +66,7 @@ long intel_gt_retire_requests_timeout(struct intel_gt *gt, long timeout) retire_requests(tl); - spin_lock_irqsave(&timelines->lock, flags); + spin_lock(&timelines->lock); /* Resume iteration after dropping lock */ list_safe_reset_next(tl, tn, link); @@ -82,7 +81,7 @@ long intel_gt_retire_requests_timeout(struct intel_gt *gt, long timeout) list_add(&tl->link, &free); } } - spin_unlock_irqrestore(&timelines->lock, flags); + spin_unlock(&timelines->lock); list_for_each_entry_safe(tl, tn, &free, link) __intel_timeline_free(&tl->kref); |