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| author | Tom Herbert <therbert@google.com> | 2014-05-02 16:28:54 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-05-05 15:26:29 -0400 |
| commit | 20fce54fa74a55ad1e821b61612393d7159b6af8 (patch) | |
| tree | 3b487bd1f4d7da1570b37a4672abc0c0197226fc /arch/sparc/include/asm/checksum_32.h | |
| parent | 4405b4d635aa2c5c7eb8873696b54811531e0d08 (diff) | |
| download | linux-20fce54fa74a55ad1e821b61612393d7159b6af8.tar.bz2 | |
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/sparc/include/asm/checksum_32.h')
| -rw-r--r-- | arch/sparc/include/asm/checksum_32.h | 12 |
1 files changed, 12 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) */ |