Am 2022-01-20 um 18:13 schrieb Philip Yang:
Define new system management interface event IDs, migration triggers and
user queue eviction triggers, those will be implemented in the following
patches.
Signed-off-by: Philip Yang <Philip.Yang@xxxxxxx>
---
include/uapi/linux/kfd_ioctl.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index af96af174dc4..de0b5bb95db3 100644
--- a/include/uapi/linux/kfd_ioctl.h
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -459,10 +459,37 @@ 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_MIGRATION = 5,
+ KFD_SMI_EVENT_PAGE_FAULT_START = 6,
+ KFD_SMI_EVENT_PAGE_FAULT_END = 7,
+ KFD_SMI_EVENT_QUEUE_EVICTION = 8,
+ KFD_SMI_EVENT_QUEUE_EVICTION_RESTORE = 9,
+ KFD_SMI_EVENT_UNMAP_FROM_GPU = 10,
+
+ /*
+ * 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))
+enum KFD_MIGRATION_QUEUE_EVICTION_UNMAP_EVENT_TRIGGER {
+ MIGRATION_TRIGGER_PREFETCH = 1,
+ MIGRATION_TRIGGER_PAGEFAULT,
Call this KFD_MIGRATION_TRIGGER_PAGEFAULT_GPU for consistency. Add the
KFD_ prefix to all the migration triggers.
+ MIGRATION_TRIGGER_PAGEFAULT_CPU,
+ MIGRATION_TRIGGER_TTM_EVICTION,
+ SVM_RANGE_EVICTION,
+ SVM_RANGE_MIGRATION,
+ USERPTR_EVICTION,
+ TTM_EVICTION,
+ UNMAP_FROM_CPU,
+ SUSPEND_EVICTION
Migration triggers and queue eviction triggers should be separate enums.
The eviction triggers should have a consistent prefix:
KFD_QUEUE_EVICTION_TRIGGER...
I'm not sure the distinction between SVM_RANGE_MIGRATION and
SVM_RANGE_EVICTION is useful. It should be clear from the context, since
migrations log their own events. If anything, the term
SVM_RANGE_EVICTION is misleading. It's really any MMU notifier that's
not MMU_NOTIFY_MIGRATE or MMU_NOTIFY_UNMAP.
I'd suggest the following names:
KFD_QUEUE_EVICTION_TRIGGER_SVM
KFD_QUEUE_EVICTION_TRIGGER_USERPTR
KFD_QUEUE_EVICTION_TRIGGER_TTM
KFD_QUEUE_EVICTION_TRIGGER_SUSPEND
Then there are triggers for unmapping from GPU, which seems to have some
overlap with queue eviction in svm_range_evict. But that becomes a bit
easier if you remove the distinction between SVM_RANGE_MIGRATION and
SVM_RANGE_EVICTION. Then you are left with these two unmap triggers:
KFD_SVM_UNMAP_TRIGGER_MMU_NOTIFIER
KFD_SVM_UNMAP_TRIGGER_UNMAP_FROM_CPU
Regards,
Felix
+};
+
struct kfd_ioctl_smi_events_args {
__u32 gpuid; /* to KFD */
__u32 anon_fd; /* from KFD */
