diff options
| author | Sumit Singh <sumsingh@nvidia.com> | 2014-04-18 20:19:46 +0530 |
|---|---|---|
| committer | Riham Haidar <rhaidar@nvidia.com> | 2014-06-13 11:54:19 -0700 |
| commit | 39e218ca7a2820577234f40053283a42e1d46b37 (patch) | |
| tree | f444cfbf1909310e5293065e8684dcd23c0d4484 /arch/arm64 | |
| parent | 2c6c579ed26b72190bd0782703d7f0b65174a858 (diff) | |
arm64: asm: relaxed.h: defined relaxed.h
Defined a new header file relaxed.h, which contains
arm64 specific macros which will be used to improve
power efficiency of arm64.
bug 1440421
Change-Id: Iee14115490cb16001d5eac9e309ee6e088b88f44
Signed-off-by: Sumit Singh <sumsingh@nvidia.com>
Reviewed-on: http://git-master/r/398323
(cherry picked from commit beb69cd6d2893c36712d4f927e41da0de729d651)
Reviewed-on: http://git-master/r/422212
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/relaxed.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/relaxed.h b/arch/arm64/include/asm/relaxed.h new file mode 100644 index 000000000000..08a217934c41 --- /dev/null +++ b/arch/arm64/include/asm/relaxed.h @@ -0,0 +1,33 @@ +/* + * arm64/include/asm/relaxed.h + * + * Copyright (c) 2014 NVIDIA Corporation. All rights reserved. + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. See the + * GNU General Public License for more details. + */ + +#ifndef _ASM_RELAXED_H_ +#define _ASM_RELAXED_H_ + +#include <asm/atomic.h> + +#ifndef cpu_relaxed_read_short +#define cpu_relaxed_read_short(p) ldax16(p) +#endif + +#ifndef cpu_relaxed_read +#define cpu_relaxed_read(p) ldax32(p) +#endif + +#ifndef cpu_relaxed_read_long +#define cpu_relaxed_read_long(p) ldax64((u64 *)p) +#endif + +#include <asm-generic/relaxed.h> +#endif /*_ASM_RELAXED_H_*/ |