diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_priv.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index acd0e41e744c..90f010cbe54e 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -952,11 +952,32 @@ struct kfd_process { struct idr event_idr; /* Event page */ u64 signal_handle; - struct kfd_signal_page *signal_page; + /* + * Each signal event needs a 64-bit signal slot where the signaler will + * write a 1 before sending an interrupt. (This is needed because some + * interrupts do not contain enough spare data bits to identify an + * event.) The signal page is allocated in user mode and mapped to the + * kernel; individual signal events use their event_id as slot index. + */ + uint64_t *signal_page; size_t signal_mapped_size; size_t signal_event_count; bool signal_event_limit_reached; + /** + * @kfd_sigbus_delay_ms: Per-process KFD SIGBUS delivery option for + * poison/RAS events (set via DRM_IOCTL_AMDGPU_PROC_OPTIONS / + * AMDGPU_PROC_OPTIONS_OP_KFD_SIGBUS_DELAY). + * + * 0 - send SIGBUS immediately (default) + * 0xFFFFFFFF - suppress SIGBUS delivery + * other - delay SIGBUS delivery by this many milliseconds + */ + atomic_t kfd_sigbus_delay_ms; + + /* Delayed signal delivery to user */ + struct delayed_work signal_work; + /* Information used for memory eviction */ void *kgd_process_info; /* Eviction fence that is attached to all the BOs of this process. The @@ -1525,7 +1546,6 @@ extern const struct kfd_device_global_init_class device_global_init_class_cik; int kfd_event_init_process(struct kfd_process *p); void kfd_event_free_process(struct kfd_process *p); -int kfd_event_mmap(struct kfd_process *process, struct vm_area_struct *vma); int kfd_wait_on_events(struct kfd_process *p, uint32_t num_events, void __user *data, bool all, uint32_t *user_timeout_ms, @@ -1554,6 +1574,7 @@ void kfd_signal_vm_fault_event(struct kfd_process_device *pdd, void kfd_signal_reset_event(struct kfd_node *dev); void kfd_signal_poison_consumed_event(struct kfd_node *dev, u32 pasid); +void kfd_signal_sigbus_delayed_fn(struct work_struct *work); void kfd_signal_process_terminate_event(struct kfd_process *p); static inline void kfd_flush_tlb(struct kfd_process_device *pdd) |