diff options
Diffstat (limited to 'arch/tile/include/asm/hardwall.h')
| -rw-r--r-- | arch/tile/include/asm/hardwall.h | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/arch/tile/include/asm/hardwall.h b/arch/tile/include/asm/hardwall.h index 2ac422848c7d..47514a58d685 100644 --- a/arch/tile/include/asm/hardwall.h +++ b/arch/tile/include/asm/hardwall.h @@ -11,12 +11,14 @@ * NON INFRINGEMENT. See the GNU General Public License for * more details. * - * Provide methods for the HARDWALL_FILE for accessing the UDN. + * Provide methods for access control of per-cpu resources like + * UDN, IDN, or IPI. */ #ifndef _ASM_TILE_HARDWALL_H #define _ASM_TILE_HARDWALL_H +#include <arch/chip.h> #include <linux/ioctl.h> #define HARDWALL_IOCTL_BASE 0xa2 @@ -24,8 +26,9 @@ /* * 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. + * 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 @@ -44,13 +47,7 @@ #define HARDWALL_GET_ID \ _IO(HARDWALL_IOCTL_BASE, _HARDWALL_GET_ID) -#ifndef __KERNEL__ - -/* This is the canonical name expected by userspace. */ -#define HARDWALL_FILE "/dev/hardwall" - -#else - +#ifdef __KERNEL__ /* /proc hooks for hardwall. */ struct proc_dir_entry; #ifdef CONFIG_HARDWALL @@ -59,7 +56,6 @@ int proc_pid_hardwall(struct task_struct *task, char *buffer); #else static inline void proc_tile_hardwall_init(struct proc_dir_entry *root) {} #endif - #endif #endif /* _ASM_TILE_HARDWALL_H */ |