diff options
author | Seema Khowala <seemaj@nvidia.com> | 2019-01-25 14:09:52 -0500 |
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committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2019-02-18 09:02:00 -0500 |
commit | 465aff5f0d69f71a5fcb47112b59463d8b4f8b30 (patch) | |
tree | e64ef7af79868d2c24f9d194585d4f03fb41dad5 /drivers/gpu/nvgpu/os/linux/vgpu | |
parent | 5e440e63d67058834b17e4cd28d3e5c9e9b8c6e2 (diff) |
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 aacc33bb47aa8019c1a20b867d3722c241f7f93a
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>
Diffstat (limited to 'drivers/gpu/nvgpu/os/linux/vgpu')
0 files changed, 0 insertions, 0 deletions