![Chris Metcalf](/assets/img/avatar_default.png)
This change is the core kernel support for TILEPro and TILE64 chips. No driver support (except the console driver) is included yet. This includes the relevant Linux headers in asm/; the low-level low-level "Tile architecture" headers in arch/, which are shared with the hypervisor, etc., and are build-system agnostic; and the relevant hypervisor headers in hv/. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Reviewed-by: Paul Mundt <lethal@linux-sh.org>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef _ASM_TILE_SPINLOCK_TYPES_H
|
|
#define _ASM_TILE_SPINLOCK_TYPES_H
|
|
|
|
#ifndef __LINUX_SPINLOCK_TYPES_H
|
|
# error "please don't include this file directly"
|
|
#endif
|
|
|
|
#ifdef __tilegx__
|
|
|
|
/* Low 15 bits are "next"; high 15 bits are "current". */
|
|
typedef struct arch_spinlock {
|
|
unsigned int lock;
|
|
} arch_spinlock_t;
|
|
|
|
#define __ARCH_SPIN_LOCK_UNLOCKED { 0 }
|
|
|
|
/* High bit is "writer owns"; low 31 bits are a count of readers. */
|
|
typedef struct arch_rwlock {
|
|
unsigned int lock;
|
|
} arch_rwlock_t;
|
|
|
|
#define __ARCH_RW_LOCK_UNLOCKED { 0 }
|
|
|
|
#else
|
|
|
|
typedef struct arch_spinlock {
|
|
/* Next ticket number to hand out. */
|
|
int next_ticket;
|
|
/* The ticket number that currently owns this lock. */
|
|
int current_ticket;
|
|
} arch_spinlock_t;
|
|
|
|
#define __ARCH_SPIN_LOCK_UNLOCKED { 0, 0 }
|
|
|
|
/*
|
|
* Byte 0 for tns (only the low bit is used), byte 1 for ticket-lock "next",
|
|
* byte 2 for ticket-lock "current", byte 3 for reader count.
|
|
*/
|
|
typedef struct arch_rwlock {
|
|
unsigned int lock;
|
|
} arch_rwlock_t;
|
|
|
|
#define __ARCH_RW_LOCK_UNLOCKED { 0 }
|
|
|
|
#endif
|
|
#endif /* _ASM_TILE_SPINLOCK_TYPES_H */
|