forked from rrcarlosr/Jetpack
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
|
|
* drivers/video/tegra/host/nvhost_ktime.h
|
|
*
|
|
* Tegra Graphics Host Interrupt Management
|
|
*
|
|
* Copyright (c) 2017, 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __NVHOST_KTIME_H
|
|
#define __NVHOST_KTIME_H
|
|
|
|
enum nvhost_clock_id {
|
|
NVHOST_CLOCK_UNKNOWN = 0,
|
|
NVHOST_CLOCK_MONOTONIC,
|
|
NVHOST_CLOCK_PTP
|
|
};
|
|
|
|
struct nvhost_timespec {
|
|
struct timespec ts;
|
|
enum nvhost_clock_id clock;
|
|
};
|
|
|
|
#ifdef CONFIG_TEGRA_PTP_NOTIFIER
|
|
#include <linux/platform/tegra/ptp-notifier.h>
|
|
|
|
#define nvhost_ktime_get_ts(nvts) \
|
|
do { \
|
|
u64 time_ns; \
|
|
int err = get_ptp_hwtime(&time_ns); \
|
|
if (err) { \
|
|
ktime_get_ts(&(nvts)->ts); \
|
|
(nvts)->clock = NVHOST_CLOCK_MONOTONIC; \
|
|
} else { \
|
|
(nvts)->ts = ns_to_timespec(time_ns); \
|
|
(nvts)->clock = NVHOST_CLOCK_PTP; \
|
|
} \
|
|
} while (0)
|
|
|
|
#else
|
|
#include <linux/ktime.h>
|
|
|
|
#define nvhost_ktime_get_ts(nvts) \
|
|
do { \
|
|
ktime_get_ts(&(nvts)->ts); \
|
|
(nvts)->clock = NVHOST_CLOCK_MONOTONIC; \
|
|
} while (0)
|
|
|
|
#endif
|
|
|
|
#endif
|