Increase limit of signal events to 4096

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

include/linux/kfd_ioctl.h

@@ -169,6 +169,8 @@ 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		4096
+
 struct kfd_ioctl_create_event_args {
 	uint64_t event_page_offset;	/* from KFD */
 	uint32_t event_trigger_data;	/* from KFD - signal events only */