diff options
| author | Bhaktipriya Shridhar <bhaktipriya96@gmail.com> | 2016-06-18 14:36:32 +0530 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2016-06-23 11:59:22 +0200 |
| commit | 57574bd779852bb7328ade70c951b681b54a7ece (patch) | |
| tree | fc14d862a4c6197548664b50ee31ae6bd095a2eb /drivers/gpu/host1x/intr.c | |
| parent | dfa7573e84b53081e9d16083123475fe3312fbcb (diff) | |
gpu: host1x: hw: intr_hw: Remove create_workqueue
System workqueues have been able to handle high level of concurrency
for a long time now and there's no reason to use dedicated workqueues
just to gain concurrency. Since the workqueue host->intr_wq is involved
in sync point interrupts, and sync point wait and is not being used on
a memory reclaim path, dedicated host->intr_wq has been replaced with the
use of system_wq.
Unlike a dedicated per-cpu workqueue created with create_workqueue(),
system_wq allows multiple work items to overlap executions even on
the same CPU; however, a per-cpu workqueue doesn't have any CPU
locality or global ordering guarantees unless the target CPU is
explicitly specified and thus the increase of local concurrency
shouldn't make any difference.
cancel_work_sync() has been used in _host1x_free_syncpt_irq() to ensure
that no work is pending by the time exit path runs.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/host1x/intr.c')
| -rw-r--r-- | drivers/gpu/host1x/intr.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/gpu/host1x/intr.c b/drivers/gpu/host1x/intr.c index 2491bf82e30c..81de286a2f60 100644 --- a/drivers/gpu/host1x/intr.c +++ b/drivers/gpu/host1x/intr.c @@ -277,9 +277,6 @@ int host1x_intr_init(struct host1x *host, unsigned int irq_sync) mutex_init(&host->intr_mutex); host->intr_syncpt_irq = irq_sync; - host->intr_wq = create_workqueue("host_syncpt"); - if (!host->intr_wq) - return -ENOMEM; for (id = 0; id < nb_pts; ++id) { struct host1x_syncpt *syncpt = host->syncpt + id; @@ -299,7 +296,6 @@ int host1x_intr_init(struct host1x *host, unsigned int irq_sync) void host1x_intr_deinit(struct host1x *host) { host1x_intr_stop(host); - destroy_workqueue(host->intr_wq); } void host1x_intr_start(struct host1x *host) |