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authorSebastian Andrzej Siewior <sebastian@breakpoint.cc>2009-04-21 02:14:37 -0400
committerHerbert Xu <herbert@gondor.apana.org.au>2009-06-02 00:04:31 -0400
commitd1c8b0a7692e81b46550bcc493465ed10510cd33 (patch)
tree16a9c6065b23cbd625873797b0e94f1a1e285b43 /drivers/crypto
parent962a9c99496f98041d14d64a9fdcf58050fefb4d (diff)
crypto: padlock - Enable on x86_64
Almost everything stays the same, we need just to use the extended registers on the bit variant. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/Kconfig2
-rw-r--r--drivers/crypto/padlock-aes.c13
2 files changed, 14 insertions, 1 deletions
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 01afd758072f..39eedd431413 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -12,7 +12,7 @@ if CRYPTO_HW
12 12
13config CRYPTO_DEV_PADLOCK 13config CRYPTO_DEV_PADLOCK
14 tristate "Support for VIA PadLock ACE" 14 tristate "Support for VIA PadLock ACE"
15 depends on X86_32 && !UML 15 depends on !UML
16 select CRYPTO_ALGAPI 16 select CRYPTO_ALGAPI
17 help 17 help
18 Some VIA processors come with an integrated crypto engine 18 Some VIA processors come with an integrated crypto engine
diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c
index 856b3cc25583..87f92c39b5f0 100644
--- a/drivers/crypto/padlock-aes.c
+++ b/drivers/crypto/padlock-aes.c
@@ -154,7 +154,11 @@ static inline void padlock_reset_key(struct cword *cword)
154 int cpu = raw_smp_processor_id(); 154 int cpu = raw_smp_processor_id();
155 155
156 if (cword != per_cpu(last_cword, cpu)) 156 if (cword != per_cpu(last_cword, cpu))
157#ifndef CONFIG_X86_64
157 asm volatile ("pushfl; popfl"); 158 asm volatile ("pushfl; popfl");
159#else
160 asm volatile ("pushfq; popfq");
161#endif
158} 162}
159 163
160static inline void padlock_store_cword(struct cword *cword) 164static inline void padlock_store_cword(struct cword *cword)
@@ -208,10 +212,19 @@ static inline void padlock_xcrypt_ecb(const u8 *input, u8 *output, void *key,
208 212
209 asm volatile ("test $1, %%cl;" 213 asm volatile ("test $1, %%cl;"
210 "je 1f;" 214 "je 1f;"
215#ifndef CONFIG_X86_64
211 "lea -1(%%ecx), %%eax;" 216 "lea -1(%%ecx), %%eax;"
212 "mov $1, %%ecx;" 217 "mov $1, %%ecx;"
218#else
219 "lea -1(%%rcx), %%rax;"
220 "mov $1, %%rcx;"
221#endif
213 ".byte 0xf3,0x0f,0xa7,0xc8;" /* rep xcryptecb */ 222 ".byte 0xf3,0x0f,0xa7,0xc8;" /* rep xcryptecb */
223#ifndef CONFIG_X86_64
214 "mov %%eax, %%ecx;" 224 "mov %%eax, %%ecx;"
225#else
226 "mov %%rax, %%rcx;"
227#endif
215 "1:" 228 "1:"
216 ".byte 0xf3,0x0f,0xa7,0xc8" /* rep xcryptecb */ 229 ".byte 0xf3,0x0f,0xa7,0xc8" /* rep xcryptecb */
217 : "+S"(input), "+D"(output) 230 : "+S"(input), "+D"(output)