[PATCH v4 4/9] drm/amdkfd: Add KFD SMI event IDs and triggers

[Philip Yang]

Define new system management interface event IDs for migration, GPU
recoverable page fault, user queues eviction, restore and unmap from
GPU events and corresponding event triggers, those will be implemented
in the following patches.

Signed-off-by: Philip Yang <Philip.Yang at amd.com>
---
 include/uapi/linux/kfd_ioctl.h | 38 ++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index baec5a41de3e..45e3c2a5cf47 100644
--- a/include/uapi/linux/kfd_ioctl.h
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -460,9 +460,47 @@ enum kfd_smi_event {
 	KFD_SMI_EVENT_THERMAL_THROTTLE = 2,
 	KFD_SMI_EVENT_GPU_PRE_RESET = 3,
 	KFD_SMI_EVENT_GPU_POST_RESET = 4,
+	KFD_SMI_EVENT_MIGRATE_START = 5,
+	KFD_SMI_EVENT_MIGRATE_END = 6,
+	KFD_SMI_EVENT_PAGE_FAULT_START = 7,
+	KFD_SMI_EVENT_PAGE_FAULT_END = 8,
+	KFD_SMI_EVENT_QUEUE_EVICTION = 9,
+	KFD_SMI_EVENT_QUEUE_RESTORE = 10,
+	KFD_SMI_EVENT_UNMAP_FROM_GPU = 11,
+
+	/*
+	 * max event number, as a flag bit to get events from all processes,
+	 * this requires super user permission, otherwise will not be able to
+	 * receive event from any process. Without this flag to receive events
+	 * from same process.
+	 */
+	KFD_SMI_EVENT_ALL_PROCESS = 64
 };
 
 #define KFD_SMI_EVENT_MASK_FROM_INDEX(i) (1ULL << ((i) - 1))
+#define KFD_SMI_EVENT_MSG_SIZE	96
+
+enum KFD_MIGRATE_TRIGGERS {
+	KFD_MIGRATE_TRIGGER_PREFETCH = 1,
+	KFD_MIGRATE_TRIGGER_PAGEFAULT_GPU,
+	KFD_MIGRATE_TRIGGER_PAGEFAULT_CPU,
+	KFD_MIGRATE_TRIGGER_TTM_EVICTION
+};
+
+enum KFD_QUEUE_EVICTION_TRIGGERS {
+	KFD_QUEUE_EVICTION_TRIGGER_SVM = 1,
+	KFD_QUEUE_EVICTION_TRIGGER_USERPTR,
+	KFD_QUEUE_EVICTION_TRIGGER_TTM,
+	KFD_QUEUE_EVICTION_TRIGGER_SUSPEND,
+	KFD_QUEUE_EVICTION_CRIU_CHECKPOINT,
+	KFD_QUEUE_EVICTION_CRIU_RESTORE
+};
+
+enum KFD_SVM_UNMAP_TRIGGERS {
+	KFD_SVM_UNMAP_TRIGGER_MMU_NOTIFY = 1,
+	KFD_SVM_UNMAP_TRIGGER_MMU_NOTIFY_MIGRATE,
+	KFD_SVM_UNMAP_TRIGGER_UNMAP_FROM_CPU
+};
 
 struct kfd_ioctl_smi_events_args {
 	__u32 gpuid;	/* to KFD */
-- 
2.17.1