/* * 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 the HARDWALL_FILE for accessing the UDN. */ #ifndef _ASM_TILE_HARDWALL_H #define _ASM_TILE_HARDWALL_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 little-endian bitmask of cpus, which must be * physically in 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) #ifndef __KERNEL__ /* This is the canonical name expected by userspace. */ #define HARDWALL_FILE "/dev/hardwall" #else /* Hook for /proc/tile/hardwall. */ struct seq_file; int proc_tile_hardwall_show(struct seq_file *sf, void *v); #endif #endif /* _ASM_TILE_HARDWALL_H */