diff options
| author | Tom Herbert | 2014-05-03 01:28:54 +0200 |
|---|---|---|
| committer | David S. Miller | 2014-05-05 21:26:29 +0200 |
| commit | 20fce54fa74a55ad1e821b61612393d7159b6af8 (patch) | |
| tree | 3b487bd1f4d7da1570b37a4672abc0c0197226fc /arch | |
| parent | net: Change x86_64 add32_with_carry to allow memory operand (diff) | |
| download | kernel-qcow2-linux-20fce54fa74a55ad1e821b61612393d7159b6af8.tar.gz kernel-qcow2-linux-20fce54fa74a55ad1e821b61612393d7159b6af8.tar.xz kernel-qcow2-linux-20fce54fa74a55ad1e821b61612393d7159b6af8.zip | |
sparc: csum_add for Sparc
versions.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc/include/asm/checksum_32.h | 12 | ||||
| -rw-r--r-- | arch/sparc/include/asm/checksum_64.h | 12 |
2 files changed, 24 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/checksum_32.h b/arch/sparc/include/asm/checksum_32.h index bdbda1453aa9..04471dc64847 100644 --- a/arch/sparc/include/asm/checksum_32.h +++ b/arch/sparc/include/asm/checksum_32.h @@ -238,4 +238,16 @@ static inline __sum16 ip_compute_csum(const void *buff, int len) return csum_fold(csum_partial(buff, len, 0)); } +#define HAVE_ARCH_CSUM_ADD +static inline __wsum csum_add(__wsum csum, __wsum addend) +{ + __asm__ __volatile__( + "addcc %0, %1, %0\n" + "addx %0, %%g0, %0" + : "=r" (csum) + : "r" (addend), "0" (csum)); + + return csum; +} + #endif /* !(__SPARC_CHECKSUM_H) */ diff --git a/arch/sparc/include/asm/checksum_64.h b/arch/sparc/include/asm/checksum_64.h index 019b9615e43c..2ff81ae8f3af 100644 --- a/arch/sparc/include/asm/checksum_64.h +++ b/arch/sparc/include/asm/checksum_64.h @@ -164,4 +164,16 @@ static inline __sum16 ip_compute_csum(const void *buff, int len) return csum_fold(csum_partial(buff, len, 0)); } +#define HAVE_ARCH_CSUM_ADD +static inline __wsum csum_add(__wsum csum, __wsum addend) +{ + __asm__ __volatile__( + "addcc %0, %1, %0\n" + "addx %0, %%g0, %0" + : "=r" (csum) + : "r" (addend), "0" (csum)); + + return csum; +} + #endif /* !(__SPARC64_CHECKSUM_H) */ |