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author | Alexey Skidanov <alexey.skidanov@gmail.com> | 2014-11-25 10:34:31 +0200 |
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committer | Oded Gabbay <oded.gabbay@gmail.com> | 2015-05-19 13:02:28 +0300 |
commit | 930c5ff4390221cccf368b305c04351fbcf0dfcf (patch) | |
tree | f0fb0a82c91897d0088b2653deba3a557c798ea1 /drivers/gpu/drm/amd/amdkfd/kfd_events.c | |
parent | 59d3e8be87a14c6a0d91c683e63d9b31734525ae (diff) | |
download | op-kernel-dev-930c5ff4390221cccf368b305c04351fbcf0dfcf.zip op-kernel-dev-930c5ff4390221cccf368b305c04351fbcf0dfcf.tar.gz |
drm/amdkfd: Add bad opcode exception handling
Signed-off-by: Alexey Skidanov <alexey.skidanov@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_events.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_events.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c index fa13d3e..5c3a81e 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c @@ -936,3 +936,24 @@ void kfd_signal_iommu_event(struct kfd_dev *dev, unsigned int pasid, mutex_unlock(&p->event_mutex); mutex_unlock(&p->mutex); } + +void kfd_signal_hw_exception_event(unsigned int pasid) +{ + /* + * Because we are called from arbitrary context (workqueue) as opposed + * to process context, kfd_process could attempt to exit while we are + * running so the lookup function returns a locked process. + */ + struct kfd_process *p = kfd_lookup_process_by_pasid(pasid); + + if (!p) + return; /* Presumably process exited. */ + + mutex_lock(&p->event_mutex); + + /* Lookup events by type and signal them */ + lookup_events_by_type_and_signal(p, KFD_EVENT_TYPE_HW_EXCEPTION, NULL); + + mutex_unlock(&p->event_mutex); + mutex_unlock(&p->mutex); +} |