diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_device.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c | 34 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_smi_events.h | 1 | ||||
| -rw-r--r-- | include/uapi/linux/kfd_ioctl.h | 2 |
5 files changed, 41 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index e1cd6599529f..0e71a0543f98 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -812,6 +812,8 @@ int kgd2kfd_pre_reset(struct kfd_dev *kfd) if (!kfd->init_complete) return 0; + kfd_smi_event_update_gpu_reset(kfd, false); + kfd->dqm->ops.pre_reset(kfd->dqm); kgd2kfd_suspend(kfd, false); @@ -840,6 +842,8 @@ int kgd2kfd_post_reset(struct kfd_dev *kfd) atomic_set(&kfd->sram_ecc_flag, 0); + kfd_smi_event_update_gpu_reset(kfd, true); + return 0; } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index f14beb93acb4..023629f28495 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -312,6 +312,8 @@ struct kfd_dev { /* Clients watching SMI events */ struct list_head smi_clients; spinlock_t smi_lock; + + uint32_t reset_seq_num; }; enum kfd_mempool { 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); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.h b/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.h index 15537b2cccb5..b9b0438202e2 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.h @@ -27,5 +27,6 @@ int kfd_smi_event_open(struct kfd_dev *dev, uint32_t *fd); void kfd_smi_event_update_vmfault(struct kfd_dev *dev, uint16_t pasid); void kfd_smi_event_update_thermal_throttling(struct kfd_dev *dev, uint32_t throttle_bitmask); +void kfd_smi_event_update_gpu_reset(struct kfd_dev *dev, bool post_reset); #endif diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h index cb1f963a84e0..8b7368bfbd84 100644 --- a/include/uapi/linux/kfd_ioctl.h +++ b/include/uapi/linux/kfd_ioctl.h @@ -453,6 +453,8 @@ enum kfd_smi_event { KFD_SMI_EVENT_NONE = 0, /* not used */ KFD_SMI_EVENT_VMFAULT = 1, /* event start counting at 1 */ KFD_SMI_EVENT_THERMAL_THROTTLE = 2, + KFD_SMI_EVENT_GPU_PRE_RESET = 3, + KFD_SMI_EVENT_GPU_POST_RESET = 4, }; #define KFD_SMI_EVENT_MASK_FROM_INDEX(i) (1ULL << ((i) - 1)) |