cregit-Linux how code gets into the kernel

Release 4.14 arch/tile/include/uapi/asm/hardwall.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * Copyright 2010 Tilera Corporation. All Rights Reserved.
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation, version 2.
 *
 *   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, GOOD TITLE or
 *   NON INFRINGEMENT.  See the GNU General Public License for
 *   more details.
 *
 * Provide methods for access control of per-cpu resources like
 * UDN, IDN, or IPI.
 */

#ifndef _UAPI_ASM_TILE_HARDWALL_H

#define _UAPI_ASM_TILE_HARDWALL_H

#include <arch/chip.h>
#include <linux/ioctl.h>


#define HARDWALL_IOCTL_BASE 0xa2

/*
 * The HARDWALL_CREATE() ioctl is a macro with a "size" argument.
 * The resulting ioctl value is passed to the kernel in conjunction
 * with a pointer to a standard kernel bitmask of cpus.
 * For network resources (UDN or IDN) the bitmask must physically
 * represent a rectangular configuration on the chip.
 * The "size" is the number of bytes of cpu mask data.
 */

#define _HARDWALL_CREATE 1

#define HARDWALL_CREATE(size) \
  _IOC(_IOC_READ, HARDWALL_IOCTL_BASE, _HARDWALL_CREATE, (size))


#define _HARDWALL_ACTIVATE 2

#define HARDWALL_ACTIVATE \
  _IO(HARDWALL_IOCTL_BASE, _HARDWALL_ACTIVATE)


#define _HARDWALL_DEACTIVATE 3

#define HARDWALL_DEACTIVATE \
 _IO(HARDWALL_IOCTL_BASE, _HARDWALL_DEACTIVATE)


#define _HARDWALL_GET_ID 4

#define HARDWALL_GET_ID \
 _IO(HARDWALL_IOCTL_BASE, _HARDWALL_GET_ID)


#endif /* _UAPI_ASM_TILE_HARDWALL_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
David Howells6098.36%150.00%
Greg Kroah-Hartman11.64%150.00%
Total61100.00%2100.00%
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