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| author | Vineet Gupta <vgupta@synopsys.com> | 2013-01-18 15:12:17 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2013-02-11 20:00:34 +0530 |
| commit | 3be80aaef861a60b85a9323462ebb5f623774f7a (patch) | |
| tree | b5224ff6c43f4a5787b72a18b83b6d4de7dbddf7 /arch/arc/include/asm/cache.h | |
| parent | ca15c8ecd588dda4377d18d6d27bc1e87b4177cb (diff) | |
| download | op-kernel-dev-3be80aaef861a60b85a9323462ebb5f623774f7a.zip op-kernel-dev-3be80aaef861a60b85a9323462ebb5f623774f7a.tar.gz | |
ARC: Fundamental ARCH data-types/defines
* L1_CACHE_SHIFT
* PAGE_SIZE, PAGE_OFFSET
* struct pt_regs, struct user_regs_struct
* struct thread_struct, cpu_relax(), task_pt_regs(), start_thread(), ...
* struct thread_info, THREAD_SIZE, INIT_THREAD_INFO(), TIF_*, ...
* BUG()
* ELF_*
* Elf_*
To disallow user-space visibility into some of the core kernel data-types
such as struct pt_regs, #ifdef __KERNEL__ which also makes the UAPI header
spit (further patch in the series) to NOT export it to asm/uapi/ptrace.h
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Jonas Bonn <jonas.bonn@gmail.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arc/include/asm/cache.h')
| -rw-r--r-- | arch/arc/include/asm/cache.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h new file mode 100644 index 0000000..30c72a4 --- /dev/null +++ b/arch/arc/include/asm/cache.h @@ -0,0 +1,21 @@ +/* + * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ARC_ASM_CACHE_H +#define __ARC_ASM_CACHE_H + +/* In case $$ not config, setup a dummy number for rest of kernel */ +#ifndef CONFIG_ARC_CACHE_LINE_SHIFT +#define L1_CACHE_SHIFT 6 +#else +#define L1_CACHE_SHIFT CONFIG_ARC_CACHE_LINE_SHIFT +#endif + +#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) + +#endif /* _ASM_CACHE_H */ |
