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| author | Chris Metcalf <cmetcalf@tilera.com> | 2010-05-29 03:09:12 (GMT) |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2010-06-04 21:11:18 (GMT) |
| commit | 867e359b97c970a60626d5d76bbe2a8fadbf38fb (patch) | |
| tree | c5ccbb7f5172e8555977119608ecb1eee3cc37e3 /arch/tile/include/asm/unistd.h | |
| parent | 5360bd776f73d0a7da571d72a09a03f237e99900 (diff) | |
| download | linux-867e359b97c970a60626d5d76bbe2a8fadbf38fb.tar.xz | |
arch/tile: core support for Tilera 32-bit chips.
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>
Diffstat (limited to 'arch/tile/include/asm/unistd.h')
| -rw-r--r-- | arch/tile/include/asm/unistd.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/tile/include/asm/unistd.h b/arch/tile/include/asm/unistd.h new file mode 100644 index 0000000..03b3d5d --- /dev/null +++ b/arch/tile/include/asm/unistd.h @@ -0,0 +1,47 @@ +/* + * 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. + */ + +#if !defined(_ASM_TILE_UNISTD_H) || defined(__SYSCALL) +#define _ASM_TILE_UNISTD_H + + +#ifndef __LP64__ +/* Use the flavor of this syscall that matches the 32-bit API better. */ +#define __ARCH_WANT_SYNC_FILE_RANGE2 +#endif + +/* Use the standard ABI for syscalls. */ +#include <asm-generic/unistd.h> + +#ifndef __tilegx__ +/* "Fast" syscalls provide atomic support for 32-bit chips. */ +#define __NR_FAST_cmpxchg -1 +#define __NR_FAST_atomic_update -2 +#define __NR_FAST_cmpxchg64 -3 +#define __NR_cmpxchg_badaddr (__NR_arch_specific_syscall + 0) +__SYSCALL(__NR_cmpxchg_badaddr, sys_cmpxchg_badaddr) +#endif + +/* Additional Tilera-specific syscalls. */ +#define __NR_flush_cache (__NR_arch_specific_syscall + 1) +__SYSCALL(__NR_flush_cache, sys_flush_cache) + +#ifdef __KERNEL__ +/* In compat mode, we use sys_llseek() for compat_sys_llseek(). */ +#ifdef CONFIG_COMPAT +#define __ARCH_WANT_SYS_LLSEEK +#endif +#endif + +#endif /* _ASM_TILE_UNISTD_H */ |