drm/amdkfd: increase limit of signal events to 4096 per process

Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Reviewed-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>

include/uapi/linux/kfd_ioctl.h

@@ -169,7 +169,7 @@ struct kfd_ioctl_dbg_wave_control_args {
 #define KFD_IOC_WAIT_RESULT_TIMEOUT		1
 #define KFD_IOC_WAIT_RESULT_FAIL		2
 
-#define KFD_SIGNAL_EVENT_LIMIT			256
+#define KFD_SIGNAL_EVENT_LIMIT			4096
 
 struct kfd_ioctl_create_event_args {
 	__u64 event_page_offset;	/* from KFD */