diff options
| author | Dennis Li <Dennis.Li@amd.com> | 2021-05-11 15:35:49 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-05-19 22:29:44 -0400 |
| commit | e2b1f9f52bb630a076039064aa4cb7f55f3e5a14 (patch) | |
| tree | e068e4a7c3ff8c5ea7dc9a03d8c73ca7186cd281 /drivers/gpu/drm/amd/amdkfd/kfd_events.c | |
| parent | 2bb5b5f688cbbd5030629905d3ed8032ab46e79f (diff) | |
| download | linux-e2b1f9f52bb630a076039064aa4cb7f55f3e5a14.tar.bz2 | |
drm/amdkfd: refine the poison data consumption handling
The user applications maybe register the KFD_EVENT_TYPE_HW_EXCEPTION and
KFD_EVENT_TYPE_MEMORY events, driver could notify them when poison data
consumed. Beside that, some applications maybe register SIGBUS signal
hander. These applications will handle poison data by themselves, exit
or re-create context to re-dispatch works.
Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_events.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_events.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c index ba2c2ce0c55a..4d210f23c33c 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c @@ -1050,3 +1050,42 @@ void kfd_signal_reset_event(struct kfd_dev *dev) } srcu_read_unlock(&kfd_processes_srcu, idx); } + +void kfd_signal_poison_consumed_event(struct kfd_dev *dev, u32 pasid) +{ + struct kfd_process *p = kfd_lookup_process_by_pasid(pasid); + struct kfd_hsa_memory_exception_data memory_exception_data; + struct kfd_hsa_hw_exception_data hw_exception_data; + struct kfd_event *ev; + uint32_t id = KFD_FIRST_NONSIGNAL_EVENT_ID; + + if (!p) + return; /* Presumably process exited. */ + + memset(&hw_exception_data, 0, sizeof(hw_exception_data)); + hw_exception_data.gpu_id = dev->id; + hw_exception_data.memory_lost = 1; + hw_exception_data.reset_cause = KFD_HW_EXCEPTION_ECC; + + memset(&memory_exception_data, 0, sizeof(memory_exception_data)); + memory_exception_data.ErrorType = KFD_MEM_ERR_POISON_CONSUMED; + memory_exception_data.gpu_id = dev->id; + memory_exception_data.failure.imprecise = true; + + mutex_lock(&p->event_mutex); + idr_for_each_entry_continue(&p->event_idr, ev, id) { + if (ev->type == KFD_EVENT_TYPE_HW_EXCEPTION) { + ev->hw_exception_data = hw_exception_data; + set_event(ev); + } + + if (ev->type == KFD_EVENT_TYPE_MEMORY) { + ev->memory_exception_data = memory_exception_data; + set_event(ev); + } + } + mutex_unlock(&p->event_mutex); + + /* user application will handle SIGBUS signal */ + send_sig(SIGBUS, p->lead_thread, 0); +} |