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-rw-r--r--arch/x86/crypto/twofish-avx-x86_64-asm_64.S208
1 files changed, 137 insertions, 71 deletions
diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
index 1585abb13dde..ebac16bfa830 100644
--- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
@@ -23,7 +23,16 @@
*
*/
+#include "glue_helper-asm-avx.S"
+
.file "twofish-avx-x86_64-asm_64.S"
+
+.data
+.align 16
+
+.Lbswap128_mask:
+ .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+
.text
/* structure of crypto context */
@@ -217,69 +226,45 @@
vpunpcklqdq x3, t2, x2; \
vpunpckhqdq x3, t2, x3;
-#define inpack_blocks(in, x0, x1, x2, x3, wkey, t0, t1, t2) \
- vpxor (0*4*4)(in), wkey, x0; \
- vpxor (1*4*4)(in), wkey, x1; \
- vpxor (2*4*4)(in), wkey, x2; \
- vpxor (3*4*4)(in), wkey, x3; \
+#define inpack_blocks(x0, x1, x2, x3, wkey, t0, t1, t2) \
+ vpxor x0, wkey, x0; \
+ vpxor x1, wkey, x1; \
+ vpxor x2, wkey, x2; \
+ vpxor x3, wkey, x3; \
\
transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
-#define outunpack_blocks(out, x0, x1, x2, x3, wkey, t0, t1, t2) \
- transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
- \
- vpxor x0, wkey, x0; \
- vmovdqu x0, (0*4*4)(out); \
- vpxor x1, wkey, x1; \
- vmovdqu x1, (1*4*4)(out); \
- vpxor x2, wkey, x2; \
- vmovdqu x2, (2*4*4)(out); \
- vpxor x3, wkey, x3; \
- vmovdqu x3, (3*4*4)(out);
-
-#define outunpack_xor_blocks(out, x0, x1, x2, x3, wkey, t0, t1, t2) \
+#define outunpack_blocks(x0, x1, x2, x3, wkey, t0, t1, t2) \
transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
\
- vpxor x0, wkey, x0; \
- vpxor (0*4*4)(out), x0, x0; \
- vmovdqu x0, (0*4*4)(out); \
- vpxor x1, wkey, x1; \
- vpxor (1*4*4)(out), x1, x1; \
- vmovdqu x1, (1*4*4)(out); \
- vpxor x2, wkey, x2; \
- vpxor (2*4*4)(out), x2, x2; \
- vmovdqu x2, (2*4*4)(out); \
- vpxor x3, wkey, x3; \
- vpxor (3*4*4)(out), x3, x3; \
- vmovdqu x3, (3*4*4)(out);
+ vpxor x0, wkey, x0; \
+ vpxor x1, wkey, x1; \
+ vpxor x2, wkey, x2; \
+ vpxor x3, wkey, x3;
.align 8
-.global __twofish_enc_blk_8way
-.type __twofish_enc_blk_8way,@function;
+.type __twofish_enc_blk8,@function;
-__twofish_enc_blk_8way:
+__twofish_enc_blk8:
/* input:
* %rdi: ctx, CTX
- * %rsi: dst
- * %rdx: src
- * %rcx: bool, if true: xor output
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
+ * output:
+ * RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2: encrypted blocks
*/
+ vmovdqu w(CTX), RK1;
+
pushq %rbp;
pushq %rbx;
pushq %rcx;
- vmovdqu w(CTX), RK1;
-
- leaq (4*4*4)(%rdx), %rax;
- inpack_blocks(%rdx, RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
+ inpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
preload_rgi(RA1);
rotate_1l(RD1);
- inpack_blocks(%rax, RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
+ inpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
rotate_1l(RD2);
- movq %rsi, %r11;
-
encrypt_cycle(0);
encrypt_cycle(1);
encrypt_cycle(2);
@@ -295,47 +280,33 @@ __twofish_enc_blk_8way:
popq %rbx;
popq %rbp;
- leaq (4*4*4)(%r11), %rax;
-
- testb %cl, %cl;
- jnz __enc_xor8;
-
- outunpack_blocks(%r11, RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
- outunpack_blocks(%rax, RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
-
- ret;
-
-__enc_xor8:
- outunpack_xor_blocks(%r11, RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
- outunpack_xor_blocks(%rax, RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
+ outunpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
+ outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
ret;
.align 8
-.global twofish_dec_blk_8way
-.type twofish_dec_blk_8way,@function;
+.type __twofish_dec_blk8,@function;
-twofish_dec_blk_8way:
+__twofish_dec_blk8:
/* input:
* %rdi: ctx, CTX
- * %rsi: dst
- * %rdx: src
+ * RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2: encrypted blocks
+ * output:
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: decrypted blocks
*/
+ vmovdqu (w+4*4)(CTX), RK1;
+
pushq %rbp;
pushq %rbx;
- vmovdqu (w+4*4)(CTX), RK1;
-
- leaq (4*4*4)(%rdx), %rax;
- inpack_blocks(%rdx, RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
+ inpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
preload_rgi(RC1);
rotate_1l(RA1);
- inpack_blocks(%rax, RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
+ inpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
rotate_1l(RA2);
- movq %rsi, %r11;
-
decrypt_cycle(7);
decrypt_cycle(6);
decrypt_cycle(5);
@@ -350,8 +321,103 @@ twofish_dec_blk_8way:
popq %rbx;
popq %rbp;
- leaq (4*4*4)(%r11), %rax;
- outunpack_blocks(%r11, RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
- outunpack_blocks(%rax, RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
+ outunpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
+ outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
+
+ ret;
+
+.align 8
+.global twofish_ecb_enc_8way
+.type twofish_ecb_enc_8way,@function;
+
+twofish_ecb_enc_8way:
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ movq %rsi, %r11;
+
+ load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ call __twofish_enc_blk8;
+
+ store_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
+
+ ret;
+
+.align 8
+.global twofish_ecb_dec_8way
+.type twofish_ecb_dec_8way,@function;
+
+twofish_ecb_dec_8way:
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ movq %rsi, %r11;
+
+ load_8way(%rdx, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
+
+ call __twofish_dec_blk8;
+
+ store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ ret;
+
+.align 8
+.global twofish_cbc_dec_8way
+.type twofish_cbc_dec_8way,@function;
+
+twofish_cbc_dec_8way:
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ pushq %r12;
+
+ movq %rsi, %r11;
+ movq %rdx, %r12;
+
+ load_8way(%rdx, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
+
+ call __twofish_dec_blk8;
+
+ store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ popq %r12;
+
+ ret;
+
+.align 8
+.global twofish_ctr_8way
+.type twofish_ctr_8way,@function;
+
+twofish_ctr_8way:
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: iv (little endian, 128bit)
+ */
+
+ pushq %r12;
+
+ movq %rsi, %r11;
+ movq %rdx, %r12;
+
+ load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2,
+ RD2, RX0, RX1, RY0);
+
+ call __twofish_enc_blk8;
+
+ store_ctr_8way(%r12, %r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
+
+ popq %r12;
ret;