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| author |   Aaro Koskinen <aaro.koskinen@iki.fi> | 2014-12-21 22:53:59 +0200 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2014-12-24 08:14:22 +1100 |
| commit | 1e585ef51c3fdcf296d2ce5cb8c9e74b1a36cfb4 (patch) | |
| tree | a2183c1fe56d921203be0adb63281bc8c0011ba2 /arch | |
| parent | MIPS: OCTEON: add crypto helper functions (diff) | |
| download | linux-dev-1e585ef51c3fdcf296d2ce5cb8c9e74b1a36cfb4.tar.xz linux-dev-1e585ef51c3fdcf296d2ce5cb8c9e74b1a36cfb4.zip | |
crypto: octeon - add instruction definitions for MD5
Add instruction definitions for MD5. Based on information extracted
from EdgeRouter Pro GPL source tarball.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/cavium-octeon/crypto/octeon-crypto.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/mips/cavium-octeon/crypto/octeon-crypto.h b/arch/mips/cavium-octeon/crypto/octeon-crypto.h index 5ca86d4ead52..3f65bc6ccb83 100644 --- a/arch/mips/cavium-octeon/crypto/octeon-crypto.h +++ b/arch/mips/cavium-octeon/crypto/octeon-crypto.h @@ -4,14 +4,70 @@ * for more details. * * Copyright (C) 2012-2013 Cavium Inc., All Rights Reserved. + * + * MD5 instruction definitions added by Aaro Koskinen <aaro.koskinen@iki.fi>. + * */ #ifndef __LINUX_OCTEON_CRYPTO_H #define __LINUX_OCTEON_CRYPTO_H #include <linux/sched.h> +#include <asm/mipsregs.h> extern unsigned long octeon_crypto_enable(struct octeon_cop2_state *state); extern void octeon_crypto_disable(struct octeon_cop2_state *state, unsigned long flags); +/* + * Macros needed to implement MD5: + */ + +/* + * The index can be 0-1. + */ +#define write_octeon_64bit_hash_dword(value, index) \ +do { \ + __asm__ __volatile__ ( \ + "dmtc2 %[rt],0x0048+" STR(index) \ + : \ + : [rt] "d" (value)); \ +} while (0) + +/* + * The index can be 0-1. + */ +#define read_octeon_64bit_hash_dword(index) \ +({ \ + u64 __value; \ + \ + __asm__ __volatile__ ( \ + "dmfc2 %[rt],0x0048+" STR(index) \ + : [rt] "=d" (__value) \ + : ); \ + \ + __value; \ +}) + +/* + * The index can be 0-6. + */ +#define write_octeon_64bit_block_dword(value, index) \ +do { \ + __asm__ __volatile__ ( \ + "dmtc2 %[rt],0x0040+" STR(index) \ + : \ + : [rt] "d" (value)); \ +} while (0) + +/* + * The value is the final block dword (64-bit). + */ +#define octeon_md5_start(value) \ +do { \ + __asm__ __volatile__ ( \ + "dmtc2 %[rt],0x4047" \ + : \ + : [rt] "d" (value)); \ +} while (0) + #endif /* __LINUX_OCTEON_CRYPTO_H */ |