Seema Khowala 465aff5f0d gpu: nvgpu: do not use raw spinlock for ch->timeout.lock ...

With PREEMPT_RT kernel, regular spinlocks are mapped onto sleeping
spinlocks (rt_mutex locks), and raw spinlocks retain their behaviour.

Schedule while atomic can occur in gk20a_channel_timeout_start,
as it acquires ch->timeout.lock raw spinlock, and then calls
functions that acquire ch->ch_timedout_lock regular spinlock.

Bug 200484795

Change-Id: Iacc63195d8ee6a2d571c998da1b4b5d396f49439
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2004100
(cherry picked from commit aacc33bb47
in dev-kernel)
Reviewed-on: https://git-master.nvidia.com/r/2017923
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Debarshi Dutta <ddutta@nvidia.com>
Tested-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2019-02-18 06:02:00 -08:00

..

channel.c

gpu: nvgpu: do not use raw spinlock for ch->timeout.lock

2019-02-18 06:02:00 -08:00

submit.c

gpu: nvgpu: rename has_timedout and make it thread safe

2019-02-13 13:19:37 -08:00

tsg.c

gpu: nvgpu: replace tsgid input variable with pointer to a struct tsg_gk20a

2019-02-11 08:18:33 -08:00