crypto: ghash-intel - Add PSHUFB macros
Add PSHUFB macros instead of repeating byte sequences, suggested
by Ingo.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/crypto/ghash-clmulni-intel_asm.S b/arch/x86/crypto/ghash-clmulni-intel_asm.S
index 71768d5..5958498 100644
--- a/arch/x86/crypto/ghash-clmulni-intel_asm.S
+++ b/arch/x86/crypto/ghash-clmulni-intel_asm.S
@@ -17,6 +17,7 @@
*/
#include <linux/linkage.h>
+#include <asm/i387.h>
.align 16
.Lbswap_mask:
@@ -101,7 +102,7 @@
movups (%rsi), SHASH
movaps .Lbswap_mask, BSWAP
# pshufb BSWAP, DATA
- .byte 0x66, 0x0f, 0x38, 0x00, 0xc5
+ PSHUFB_XMM5_XMM0
call __clmul_gf128mul_ble
# pshufb BSWAP, DATA
.byte 0x66, 0x0f, 0x38, 0x00, 0xc5
@@ -119,12 +120,12 @@
movups (%rdi), DATA
movups (%rcx), SHASH
# pshufb BSWAP, DATA
- .byte 0x66, 0x0f, 0x38, 0x00, 0xc5
+ PSHUFB_XMM5_XMM0
.align 4
.Lupdate_loop:
movups (%rsi), IN1
# pshufb BSWAP, IN1
- .byte 0x66, 0x0f, 0x38, 0x00, 0xf5
+ PSHUFB_XMM5_XMM6
pxor IN1, DATA
call __clmul_gf128mul_ble
sub $16, %rdx
@@ -132,7 +133,7 @@
cmp $16, %rdx
jge .Lupdate_loop
# pshufb BSWAP, DATA
- .byte 0x66, 0x0f, 0x38, 0x00, 0xc5
+ PSHUFB_XMM5_XMM0
movups DATA, (%rdi)
.Lupdate_just_ret:
ret
@@ -146,7 +147,7 @@
movaps .Lbswap_mask, BSWAP
movups (%rsi), %xmm0
# pshufb BSWAP, %xmm0
- .byte 0x66, 0x0f, 0x38, 0x00, 0xc5
+ PSHUFB_XMM5_XMM0
movaps %xmm0, %xmm1
psllq $1, %xmm0
psrlq $63, %xmm1
diff --git a/arch/x86/include/asm/i387.h b/arch/x86/include/asm/i387.h
index 0b20bbb..ebfb8a9 100644
--- a/arch/x86/include/asm/i387.h
+++ b/arch/x86/include/asm/i387.h
@@ -10,6 +10,8 @@
#ifndef _ASM_X86_I387_H
#define _ASM_X86_I387_H
+#ifndef __ASSEMBLY__
+
#include <linux/sched.h>
#include <linux/kernel_stat.h>
#include <linux/regset.h>
@@ -411,4 +413,9 @@
}
}
+#endif /* __ASSEMBLY__ */
+
+#define PSHUFB_XMM5_XMM0 .byte 0x66, 0x0f, 0x38, 0x00, 0xc5
+#define PSHUFB_XMM5_XMM6 .byte 0x66, 0x0f, 0x38, 0x00, 0xf5
+
#endif /* _ASM_X86_I387_H */