forked from Minki/linux
6051e79bbf
I noticed that the mic driver passes a 'struct timespec64' as part of a message into an attached device, where it is used to set the current system time. This won't actually work if one of the two sides runs a 32-bit kernel and the other runs a 64-bit kernel, since the structure layout is different between the two. I found this while replacing calls to the deprecated do_settimeofday64() interface with the modern ktime_get_real_ts() variant, but it seems appropriate to address both at the same time here. To make sure we have a sane structure, let's define our own structure using the layout of the 64-bit kernel. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
|
|
* Intel MIC Platform Software Stack (MPSS)
|
|
*
|
|
* Copyright(c) 2015 Intel Corporation.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License, version 2, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that 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.
|
|
*
|
|
* The full GNU General Public License is included in this distribution in
|
|
* the file called "COPYING".
|
|
*
|
|
* Intel MIC Coprocessor State Management (COSM) Driver
|
|
*
|
|
*/
|
|
#ifndef _COSM_COSM_H_
|
|
#define _COSM_COSM_H_
|
|
|
|
#include <linux/scif.h>
|
|
#include "../bus/cosm_bus.h"
|
|
|
|
#define COSM_HEARTBEAT_SEND_SEC 30
|
|
#define SCIF_COSM_LISTEN_PORT 201
|
|
|
|
/**
|
|
* enum COSM msg id's
|
|
* @COSM_MSG_SHUTDOWN: host->card trigger shutdown
|
|
* @COSM_MSG_SYNC_TIME: host->card send host time to card to sync time
|
|
* @COSM_MSG_HEARTBEAT: card->host heartbeat
|
|
* @COSM_MSG_SHUTDOWN_STATUS: card->host with shutdown status as payload
|
|
*/
|
|
enum cosm_msg_id {
|
|
COSM_MSG_SHUTDOWN,
|
|
COSM_MSG_SYNC_TIME,
|
|
COSM_MSG_HEARTBEAT,
|
|
COSM_MSG_SHUTDOWN_STATUS,
|
|
};
|
|
|
|
struct cosm_msg {
|
|
u64 id;
|
|
union {
|
|
u64 shutdown_status;
|
|
struct {
|
|
u64 tv_sec;
|
|
u64 tv_nsec;
|
|
} timespec;
|
|
};
|
|
};
|
|
|
|
extern const char * const cosm_state_string[];
|
|
extern const char * const cosm_shutdown_status_string[];
|
|
|
|
void cosm_sysfs_init(struct cosm_device *cdev);
|
|
int cosm_start(struct cosm_device *cdev);
|
|
void cosm_stop(struct cosm_device *cdev, bool force);
|
|
int cosm_reset(struct cosm_device *cdev);
|
|
int cosm_shutdown(struct cosm_device *cdev);
|
|
void cosm_set_state(struct cosm_device *cdev, u8 state);
|
|
void cosm_set_shutdown_status(struct cosm_device *cdev, u8 status);
|
|
void cosm_init_debugfs(void);
|
|
void cosm_exit_debugfs(void);
|
|
void cosm_create_debug_dir(struct cosm_device *cdev);
|
|
void cosm_delete_debug_dir(struct cosm_device *cdev);
|
|
int cosm_scif_init(void);
|
|
void cosm_scif_exit(void);
|
|
void cosm_scif_work(struct work_struct *work);
|
|
|
|
#endif
|