Open source GPL/LGPL release

include/uapi/linux/nvgpu-event.h

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ * Event session
+ *
+ * NVGPU_GPU_IOCTL_GET_EVENT_FD opens an event session.
+ * Below ioctls can be used on these sessions fds.
+ */
+
+#ifndef _UAPI__LINUX_NVGPU_EVENT_H__
+#define _UAPI__LINUX_NVGPU_EVENT_H__
+
+#include "nvgpu-uapi-common.h"
+
+#define NVGPU_EVENT_IOCTL_MAGIC	'E'
+
+/* Normal events (POLLIN) */
+/* Event associated to a VF update */
+#define NVGPU_GPU_EVENT_VF_UPDATE				0
+
+/* Recoverable alarms (POLLPRI) */
+/* Alarm when target frequency on any session is not possible */
+#define NVGPU_GPU_EVENT_ALARM_TARGET_VF_NOT_POSSIBLE		1
+/* Alarm when target frequency on current session is not possible */
+#define NVGPU_GPU_EVENT_ALARM_LOCAL_TARGET_VF_NOT_POSSIBLE	2
+/* Alarm when Clock Arbiter failed */
+#define NVGPU_GPU_EVENT_ALARM_CLOCK_ARBITER_FAILED		3
+/* Alarm when VF table update failed */
+#define NVGPU_GPU_EVENT_ALARM_VF_TABLE_UPDATE_FAILED		4
+/* Alarm on thermal condition */
+#define NVGPU_GPU_EVENT_ALARM_THERMAL_ABOVE_THRESHOLD		5
+/* Alarm on power condition */
+#define NVGPU_GPU_EVENT_ALARM_POWER_ABOVE_THRESHOLD		6
+
+/* Non recoverable alarm (POLLHUP) */
+/* Alarm on GPU shutdown/fall from bus */
+#define NVGPU_GPU_EVENT_ALARM_GPU_LOST				7
+
+#define NVGPU_GPU_EVENT_LAST	NVGPU_GPU_EVENT_ALARM_GPU_LOST
+
+struct nvgpu_gpu_event_info {
+	__u32 event_id;		/* NVGPU_GPU_EVENT_* */
+	__u32 reserved;
+	__u64 timestamp;	/* CPU timestamp (in nanoseconds) */
+};
+
+struct nvgpu_gpu_set_event_filter_args {
+
+	/* in: Flags (not currently used). */
+	__u32 flags;
+
+	/* in: Size of event filter in 32-bit words */
+	__u32 size;
+
+	/* in: Address of buffer containing bit mask of events.
+	 * Bit #n is set if event #n should be monitored.
+	 */
+	__u64 buffer;
+};
+
+#define NVGPU_EVENT_IOCTL_SET_FILTER \
+	_IOW(NVGPU_EVENT_IOCTL_MAGIC, 1, struct nvgpu_gpu_set_event_filter_args)
+#define NVGPU_EVENT_IOCTL_LAST		\
+	_IOC_NR(NVGPU_EVENT_IOCTL_SET_FILTER)
+#define NVGPU_EVENT_IOCTL_MAX_ARG_SIZE	\
+	sizeof(struct nvgpu_gpu_set_event_filter_args)
+
+#endif