diff options
| author |   Mukul Joshi <mukul.joshi@amd.com> | 2020-08-28 18:50:42 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2020-08-31 14:40:03 -0400 |
| commit | 55977744f9d862512a524fea93fc5226b09e76a9 (patch) | |
| tree | 01900fe5c5e88e9d0ed793b118543fb885174453 /drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c | |
| parent | drm/amdgpu: fix compiler warnings (diff) | |
| download | linux-dev-55977744f9d862512a524fea93fc5226b09e76a9.tar.xz linux-dev-55977744f9d862512a524fea93fc5226b09e76a9.zip | |
drm/amdkfd: Add GPU reset SMI event
Add support for reporting GPU reset events through SMI. KFD
would report both pre and post GPU reset events.
Signed-off-by: Mukul Joshi <mukul.joshi@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_smi_events.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c index 4d4b6e3ab697..17d1736367ea 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c @@ -174,6 +174,36 @@ static void add_event_to_kfifo(struct kfd_dev *dev, unsigned int smi_event, rcu_read_unlock(); } +void kfd_smi_event_update_gpu_reset(struct kfd_dev *dev, bool post_reset) +{ + /* + * GpuReset msg = Reset seq number (incremented for + * every reset message sent before GPU reset). + * 1 byte event + 1 byte space + 8 bytes seq num + + * 1 byte \n + 1 byte \0 = 12 + */ + char fifo_in[12]; + int len; + unsigned int event; + + if (list_empty(&dev->smi_clients)) + return; + + memset(fifo_in, 0x0, sizeof(fifo_in)); + + if (post_reset) { + event = KFD_SMI_EVENT_GPU_POST_RESET; + } else { + event = KFD_SMI_EVENT_GPU_PRE_RESET; + ++(dev->reset_seq_num); + } + + len = snprintf(fifo_in, sizeof(fifo_in), "%x %x\n", event, + dev->reset_seq_num); + + add_event_to_kfifo(dev, event, fifo_in, len); +} + void kfd_smi_event_update_thermal_throttling(struct kfd_dev *dev, uint32_t throttle_bitmask) { @@ -191,7 +221,7 @@ void kfd_smi_event_update_thermal_throttling(struct kfd_dev *dev, if (list_empty(&dev->smi_clients)) return; - len = snprintf(fifo_in, 29, "%x %x:%llx\n", + len = snprintf(fifo_in, sizeof(fifo_in), "%x %x:%llx\n", KFD_SMI_EVENT_THERMAL_THROTTLE, throttle_bitmask, atomic64_read(&adev->smu.throttle_int_counter)); @@ -218,7 +248,7 @@ void kfd_smi_event_update_vmfault(struct kfd_dev *dev, uint16_t pasid) if (!task_info.pid) return; - len = snprintf(fifo_in, 29, "%x %x:%s\n", KFD_SMI_EVENT_VMFAULT, + len = snprintf(fifo_in, sizeof(fifo_in), "%x %x:%s\n", KFD_SMI_EVENT_VMFAULT, task_info.pid, task_info.task_name); add_event_to_kfifo(dev, KFD_SMI_EVENT_VMFAULT, fifo_in, len); |