[PATCH net-next v6 12/23] zinc: Poly1305 ARM and ARM64 implementations

Jason A. Donenfeld
2018-09-25T14:59:17Z

These wire Andy Polyakov's implementations up to the kernel. We make a
few small changes to the assembly:

- Entries and exits use the proper kernel convention macro.
- CPU feature checking is done in C by the glue code, so that has been
removed from the assembly.
- The function names have been renamed to fit kernel conventions.
- Labels have been renamed to fit kernel conventions.
- The neon code can jump to the scalar code when it makes sense to do
so.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Samuel Neves <sneves@dei.uc.pt>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Jean-Philippe Aumasson <jeanphilippe.aumasson@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
---
lib/zinc/Makefile | 2 +
lib/zinc/poly1305/poly1305-arm-glue.h | 119 ++++++++++++++
...ly1305-arm-cryptogams.S => poly1305-arm.S} | 147 ++++++------------
...05-arm64-cryptogams.S => poly1305-arm64.S} | 103 ++++--------
lib/zinc/poly1305/poly1305.c | 2 +
5 files changed, 198 insertions(+), 175 deletions(-)
create mode 100644 lib/zinc/poly1305/poly1305-arm-glue.h
rename lib/zinc/poly1305/{poly1305-arm-cryptogams.S => poly1305-arm.S} (91%)
rename lib/zinc/poly1305/{poly1305-arm64-cryptogams.S => poly1305-arm64.S} (90%)

diff --git a/lib/zinc/Makefile b/lib/zinc/Makefile
index a8943d960b6a..c09fd3de60f9 100644
--- a/lib/zinc/Makefile
+++ b/lib/zinc/Makefile
@@ -12,4 +12,6 @@ obj-$(CONFIG_ZINC_CHACHA20) += zinc_chacha20.o

zinc_poly1305-y := poly1305/poly1305.o
zinc_poly1305-$(CONFIG_ZINC_ARCH_X86_64) += poly1305/poly1305-x86_64.o
+zinc_poly1305-$(CONFIG_ZINC_ARCH_ARM) += poly1305/poly1305-arm.o
+zinc_poly1305-$(CONFIG_ZINC_ARCH_ARM64) += poly1305/poly1305-arm64.o
obj-$(CONFIG_ZINC_POLY1305) += zinc_poly1305.o
diff --git a/lib/zinc/poly1305/poly1305-arm-glue.h b/lib/zinc/poly1305/poly1305-arm-glue.h
new file mode 100644
index 000000000000..ddeb58a2b547
--- /dev/null
+++ b/lib/zinc/poly1305/poly1305-arm-glue.h
@@ -0,0 +1,119 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include <asm/hwcap.h>
+#include <asm/neon.h>
+
+asmlinkage void poly1305_init_arm(void *ctx, const u8 key[16]);
+asmlinkage void poly1305_blocks_arm(void *ctx, const u8 *inp, const size_t len,
+ const u32 padbit);
+asmlinkage void poly1305_emit_arm(void *ctx, u8 mac[16], const u32 nonce[4]);
+#if defined(CONFIG_KERNEL_MODE_NEON)
+asmlinkage void poly1305_blocks_neon(void *ctx, const u8 *inp, const size_t len,
+ const u32 padbit);
+asmlinkage void poly1305_emit_neon(void *ctx, u8 mac[16], const u32 nonce[4]);
+#endif
+
+static bool poly1305_use_neon __ro_after_init;
+
+static void __init poly1305_fpu_init(void)
+{
+#if defined(CONFIG_ARM64)
+ poly1305_use_neon = elf_hwcap & HWCAP_ASIMD;
+#elif defined(CONFIG_ARM)
+ poly1305_use_neon = elf_hwcap & HWCAP_NEON;
+#endif
+}
+
+#if defined(CONFIG_ARM64)
+struct poly1305_arch_internal {
+ union {
+ u32 h[5];
+ struct {
+ u64 h0, h1, h2;
+ };
+ };
+ u32 is_base2_26;
+ u64 r[2];
+};
+#elif defined(CONFIG_ARM)
+struct poly1305_arch_internal {
+ union {
+ u32 h[5];
+ struct {
+ u64 h0, h1;
+ u32 h2;
+ } __packed;
+ };
+ u32 r[4];
+ u32 is_base2_26;
+};
+#endif
+
+#if defined(CONFIG_KERNEL_MODE_NEON)
+static void convert_to_base2_64(void *ctx)
+{
+ struct poly1305_arch_internal *state = ctx;
+ u32 cy;
+
+ if (!state->is_base2_26)
+ return;
+
+ cy = state->h[0] >> 26; state->h[0] &= 0x3ffffff; state->h[1] += cy;
+ cy = state->h[1] >> 26; state->h[1] &= 0x3ffffff; state->h[2] += cy;
+ cy = state->h[2] >> 26; state->h[2] &= 0x3ffffff; state->h[3] += cy;
+ cy = state->h[3] >> 26; state->h[3] &= 0x3ffffff; state->h[4] += cy;
+ state->h0 = ((u64)state->h[2] << 52) | ((u64)state->h[1] << 26) | state->h[0];
+ state->h1 = ((u64)state->h[4] << 40) | ((u64)state->h[3] << 14) | (state->h[2] >> 12);
+ state->h2 = state->h[4] >> 24;
+#define ULT(a, b) ((a ^ ((a ^ b) | ((a - b) ^ b))) >> (sizeof(a) * 8 - 1))
+ cy = (state->h2 >> 2) + (state->h2 & ~3ULL);
+ state->h2 &= 3;
+ state->h0 += cy;
+ state->h1 += (cy = ULT(state->h0, cy));
+ state->h2 += ULT(state->h1, cy);
+#undef ULT
+ state->is_base2_26 = 0;
+}
+#endif
+
+static inline bool poly1305_init_arch(void *ctx,
+ const u8 key[POLY1305_KEY_SIZE])
+{
+ poly1305_init_arm(ctx, key);
+ return true;
+}
+
+static inline bool poly1305_blocks_arch(void *ctx, const u8 *inp,
+ const size_t len, const u32 padbit,
+ simd_context_t *simd_context)
+{
+#if defined(CONFIG_KERNEL_MODE_NEON)
+ if (poly1305_use_neon && simd_use(simd_context)) {
+ poly1305_blocks_neon(ctx, inp, len, padbit);
+ return true;
+ }
+ convert_to_base2_64(ctx);
+#endif
+
+ poly1305_blocks_arm(ctx, inp, len, padbit);
+ return true;
+}
+
+static inline bool poly1305_emit_arch(void *ctx, u8 mac[POLY1305_MAC_SIZE],
+ const u32 nonce[4],
+ simd_context_t *simd_context)
+{
+#if defined(CONFIG_KERNEL_MODE_NEON)
+ if (poly1305_use_neon && simd_use(simd_context)) {
+ poly1305_emit_neon(ctx, mac, nonce);
+ return true;
+ }
+ convert_to_base2_64(ctx);
+#endif
+
+ poly1305_emit_arm(ctx, mac, nonce);
+ return true;
+}
diff --git a/lib/zinc/poly1305/poly1305-arm-cryptogams.S b/lib/zinc/poly1305/poly1305-arm.S
similarity index 91%
rename from lib/zinc/poly1305/poly1305-arm-cryptogams.S
rename to lib/zinc/poly1305/poly1305-arm.S
index 884b465030e4..4a0e9d451119 100644
--- a/lib/zinc/poly1305/poly1305-arm-cryptogams.S
+++ b/lib/zinc/poly1305/poly1305-arm.S
@@ -1,9 +1,12 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
+ * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
* Copyright (C) 2006-2017 CRYPTOGAMS by <appro@openssl.org>. All Rights Reserved.
+ *
+ * This is based in part on Andy Polyakov's implementation from CRYPTOGAMS.
*/

-#include "arm_arch.h"
+#include <linux/linkage.h>

.text
#if defined(__thumb2__)
@@ -13,13 +16,8 @@
.code 32
#endif

-.globl poly1305_emit
-.globl poly1305_blocks
-.globl poly1305_init
-.type poly1305_init,%function
.align 5
-poly1305_init:
-.Lpoly1305_init:
+ENTRY(poly1305_init_arm)
stmdb sp!,{r4-r11}

eor r3,r3,r3
@@ -38,10 +36,6 @@ poly1305_init:
moveq r0,#0
beq .Lno_key

-#if __ARM_MAX_ARCH__>=7
- adr r11,.Lpoly1305_init
- ldr r12,.LOPENSSL_armcap
-#endif
ldrb r4,[r1,#0]
mov r10,#0x0fffffff
ldrb r5,[r1,#1]
@@ -56,12 +50,6 @@ poly1305_init:
ldrb r7,[r1,#6]
and r4,r4,r10

-#if __ARM_MAX_ARCH__>=7
- ldr r12,[r11,r12] @ OPENSSL_armcap_P
-# ifdef __APPLE__
- ldr r12,[r12]
-# endif
-#endif
ldrb r8,[r1,#7]
orr r5,r5,r6,lsl#8
ldrb r6,[r1,#8]
@@ -71,35 +59,6 @@ poly1305_init:
ldrb r8,[r1,#10]
and r5,r5,r3

-#if __ARM_MAX_ARCH__>=7
- tst r12,#ARMV7_NEON @ check for NEON
-# ifdef __APPLE__
- adr r9,poly1305_blocks_neon
- adr r11,poly1305_blocks
-# ifdef __thumb2__
- it ne
-# endif
- movne r11,r9
- adr r12,poly1305_emit
- adr r10,poly1305_emit_neon
-# ifdef __thumb2__
- it ne
-# endif
- movne r12,r10
-# else
-# ifdef __thumb2__
- itete eq
-# endif
- addeq r12,r11,#(poly1305_emit-.Lpoly1305_init)
- addne r12,r11,#(poly1305_emit_neon-.Lpoly1305_init)
- addeq r11,r11,#(poly1305_blocks-.Lpoly1305_init)
- addne r11,r11,#(poly1305_blocks_neon-.Lpoly1305_init)
-# endif
-# ifdef __thumb2__
- orr r12,r12,#1 @ thumb-ify address
- orr r11,r11,#1
-# endif
-#endif
ldrb r9,[r1,#11]
orr r6,r6,r7,lsl#8
ldrb r7,[r1,#12]
@@ -118,26 +77,20 @@ poly1305_init:
str r6,[r0,#8]
and r7,r7,r3
str r7,[r0,#12]
-#if __ARM_MAX_ARCH__>=7
- stmia r2,{r11,r12} @ fill functions table
- mov r0,#1
-#else
- mov r0,#0
-#endif
.Lno_key:
ldmia sp!,{r4-r11}
-#if __ARM_ARCH__>=5
+#if __LINUX_ARM_ARCH__ >= 5
bx lr @ bx lr
#else
tst lr,#1
moveq pc,lr @ be binary compatible with V4, yet
.word 0xe12fff1e @ interoperable with Thumb ISA:-)
#endif
-.size poly1305_init,.-poly1305_init
-.type poly1305_blocks,%function
+ENDPROC(poly1305_init_arm)
+
.align 5
-poly1305_blocks:
-.Lpoly1305_blocks:
+ENTRY(poly1305_blocks_arm)
+.Lpoly1305_blocks_arm:
stmdb sp!,{r3-r11,lr}

ands r2,r2,#-16
@@ -158,11 +111,11 @@ poly1305_blocks:
b .Loop

.Loop:
-#if __ARM_ARCH__<7
+#if __LINUX_ARM_ARCH__ < 7
ldrb r0,[lr],#16 @ load input
-# ifdef __thumb2__
+#ifdef __thumb2__
it hi
-# endif
+#endif
addhi r8,r8,#1 @ 1<<128
ldrb r1,[lr,#-15]
ldrb r2,[lr,#-14]
@@ -201,19 +154,19 @@ poly1305_blocks:
orr r3,r2,r3,lsl#24
#else
ldr r0,[lr],#16 @ load input
-# ifdef __thumb2__
+#ifdef __thumb2__
it hi
-# endif
+#endif
addhi r8,r8,#1 @ padbit
ldr r1,[lr,#-12]
ldr r2,[lr,#-8]
ldr r3,[lr,#-4]
-# ifdef __ARMEB__
+#ifdef __ARMEB__
rev r0,r0
rev r1,r1
rev r2,r2
rev r3,r3
-# endif
+#endif
adds r4,r4,r0 @ accumulate input
str lr,[sp,#8] @ offload input pointer
adcs r5,r5,r1
@@ -283,7 +236,7 @@ poly1305_blocks:
stmia r0,{r4-r8} @ store the result

.Lno_data:
-#if __ARM_ARCH__>=5
+#if __LINUX_ARM_ARCH__ >= 5
ldmia sp!,{r3-r11,pc}
#else
ldmia sp!,{r3-r11,lr}
@@ -291,13 +244,12 @@ poly1305_blocks:
moveq pc,lr @ be binary compatible with V4, yet
.word 0xe12fff1e @ interoperable with Thumb ISA:-)
#endif
-.size poly1305_blocks,.-poly1305_blocks
-.type poly1305_emit,%function
+ENDPROC(poly1305_blocks_arm)
+
.align 5
-poly1305_emit:
+ENTRY(poly1305_emit_arm)
stmdb sp!,{r4-r11}
.Lpoly1305_emit_enter:
-
ldmia r0,{r3-r7}
adds r8,r3,#5 @ compare to modulus
adcs r9,r4,#0
@@ -332,13 +284,13 @@ poly1305_emit:
adcs r5,r5,r10
adc r6,r6,r11

-#if __ARM_ARCH__>=7
-# ifdef __ARMEB__
+#if __LINUX_ARM_ARCH__ >= 7
+#ifdef __ARMEB__
rev r3,r3
rev r4,r4
rev r5,r5
rev r6,r6
-# endif
+#endif
str r3,[r1,#0]
str r4,[r1,#4]
str r5,[r1,#8]
@@ -377,20 +329,22 @@ poly1305_emit:
strb r6,[r1,#15]
#endif
ldmia sp!,{r4-r11}
-#if __ARM_ARCH__>=5
+#if __LINUX_ARM_ARCH__ >= 5
bx lr @ bx lr
#else
tst lr,#1
moveq pc,lr @ be binary compatible with V4, yet
.word 0xe12fff1e @ interoperable with Thumb ISA:-)
#endif
-.size poly1305_emit,.-poly1305_emit
-#if __ARM_MAX_ARCH__>=7
+ENDPROC(poly1305_emit_arm)
+
+
+#ifdef CONFIG_KERNEL_MODE_NEON
.fpu neon

-.type poly1305_init_neon,%function
.align 5
-poly1305_init_neon:
+ENTRY(poly1305_init_neon)
+.Lpoly1305_init_neon:
ldr r4,[r0,#20] @ load key base 2^32
ldr r5,[r0,#24]
ldr r6,[r0,#28]
@@ -600,11 +554,10 @@ poly1305_init_neon:
vst1.32 {d8[1]},[r7]

bx lr @ bx lr
-.size poly1305_init_neon,.-poly1305_init_neon
+ENDPROC(poly1305_init_neon)

-.type poly1305_blocks_neon,%function
.align 5
-poly1305_blocks_neon:
+ENTRY(poly1305_blocks_neon)
ldr ip,[r0,#36] @ is_base2_26
ands r2,r2,#-16
beq .Lno_data_neon
@@ -612,7 +565,7 @@ poly1305_blocks_neon:
cmp r2,#64
bhs .Lenter_neon
tst ip,ip @ is_base2_26?
- beq .Lpoly1305_blocks
+ beq .Lpoly1305_blocks_arm

.Lenter_neon:
stmdb sp!,{r4-r7}
@@ -622,7 +575,7 @@ poly1305_blocks_neon:
bne .Lbase2_26_neon

stmdb sp!,{r1-r3,lr}
- bl poly1305_init_neon
+ bl .Lpoly1305_init_neon

ldr r4,[r0,#0] @ load hash value base 2^32
ldr r5,[r0,#4]
@@ -686,12 +639,12 @@ poly1305_blocks_neon:
sub r2,r2,#16
add r4,r1,#32

-# ifdef __ARMEB__
+#ifdef __ARMEB__
vrev32.8 q10,q10
vrev32.8 q13,q13
vrev32.8 q11,q11
vrev32.8 q12,q12
-# endif
+#endif
vsri.u32 d28,d26,#8 @ base 2^32 -> base 2^26
vshl.u32 d26,d26,#18

@@ -735,12 +688,12 @@ poly1305_blocks_neon:
addhi r7,r0,#(48+1*9*4)
addhi r6,r0,#(48+3*9*4)

-# ifdef __ARMEB__
+#ifdef __ARMEB__
vrev32.8 q10,q10
vrev32.8 q13,q13
vrev32.8 q11,q11
vrev32.8 q12,q12
-# endif
+#endif
vsri.u32 q14,q13,#8 @ base 2^32 -> base 2^26
vshl.u32 q13,q13,#18

@@ -866,12 +819,12 @@ poly1305_blocks_neon:

vld4.32 {d20,d22,d24,d26},[r1] @ inp[0:1]
add r1,r1,#64
-# ifdef __ARMEB__
+#ifdef __ARMEB__
vrev32.8 q10,q10
vrev32.8 q11,q11
vrev32.8 q12,q12
vrev32.8 q13,q13
-# endif
+#endif

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ lazy reduction interleaved with base 2^32 -> base 2^26 of
@@ -1086,11 +1039,10 @@ poly1305_blocks_neon:
ldmia sp!,{r4-r7}
.Lno_data_neon:
bx lr @ bx lr
-.size poly1305_blocks_neon,.-poly1305_blocks_neon
+ENDPROC(poly1305_blocks_neon)

-.type poly1305_emit_neon,%function
.align 5
-poly1305_emit_neon:
+ENTRY(poly1305_emit_neon)
ldr ip,[r0,#36] @ is_base2_26

stmdb sp!,{r4-r11}
@@ -1144,12 +1096,12 @@ poly1305_emit_neon:
adcs r5,r5,r10
adc r6,r6,r11

-# ifdef __ARMEB__
+#ifdef __ARMEB__
rev r3,r3
rev r4,r4
rev r5,r5
rev r6,r6
-# endif
+#endif
str r3,[r1,#0] @ store the result
str r4,[r1,#4]
str r5,[r1,#8]
@@ -1157,16 +1109,9 @@ poly1305_emit_neon:

ldmia sp!,{r4-r11}
bx lr @ bx lr
-.size poly1305_emit_neon,.-poly1305_emit_neon
+ENDPROC(poly1305_emit_neon)

.align 5
.Lzeros:
.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
-.LOPENSSL_armcap:
-.word OPENSSL_armcap_P-.Lpoly1305_init
-#endif
-.asciz "Poly1305 for ARMv4/NEON, CRYPTOGAMS by <appro@openssl.org>"
-.align 2
-#if __ARM_MAX_ARCH__>=7
-.comm OPENSSL_armcap_P,4,4
#endif
diff --git a/lib/zinc/poly1305/poly1305-arm64-cryptogams.S b/lib/zinc/poly1305/poly1305-arm64.S
similarity index 90%
rename from lib/zinc/poly1305/poly1305-arm64-cryptogams.S
rename to lib/zinc/poly1305/poly1305-arm64.S
index 0ecb50a83ec0..84a654479cac 100644
--- a/lib/zinc/poly1305/poly1305-arm64-cryptogams.S
+++ b/lib/zinc/poly1305/poly1305-arm64.S
@@ -1,21 +1,16 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
+ * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
* Copyright (C) 2006-2017 CRYPTOGAMS by <appro@openssl.org>. All Rights Reserved.
+ *
+ * This is based in part on Andy Polyakov's implementation from CRYPTOGAMS.
*/

-#include "arm_arch.h"
-
+#include <linux/linkage.h>
.text

-// forward "declarations" are required for Apple
-
-.globl poly1305_blocks
-.globl poly1305_emit
-
-.globl poly1305_init
-.type poly1305_init,%function
.align 5
-poly1305_init:
+ENTRY(poly1305_init_arm)
cmp x1,xzr
stp xzr,xzr,[x0] // zero hash value
stp xzr,xzr,[x0,#16] // [along with is_base2_26]
@@ -23,17 +18,9 @@ poly1305_init:
csel x0,xzr,x0,eq
b.eq .Lno_key

-#ifdef __ILP32__
- ldrsw x11,.LOPENSSL_armcap_P
-#else
- ldr x11,.LOPENSSL_armcap_P
-#endif
- adr x10,.LOPENSSL_armcap_P
-
ldp x7,x8,[x1] // load key
mov x9,#0xfffffffc0fffffff
movk x9,#0x0fff,lsl#48
- ldr w17,[x10,x11]
#ifdef __ARMEB__
rev x7,x7 // flip bytes
rev x8,x8
@@ -43,30 +30,12 @@ poly1305_init:
and x8,x8,x9 // &=0ffffffc0ffffffc
stp x7,x8,[x0,#32] // save key value

- tst w17,#ARMV7_NEON
-
- adr x12,poly1305_blocks
- adr x7,poly1305_blocks_neon
- adr x13,poly1305_emit
- adr x8,poly1305_emit_neon
-
- csel x12,x12,x7,eq
- csel x13,x13,x8,eq
-
-#ifdef __ILP32__
- stp w12,w13,[x2]
-#else
- stp x12,x13,[x2]
-#endif
-
- mov x0,#1
.Lno_key:
ret
-.size poly1305_init,.-poly1305_init
+ENDPROC(poly1305_init_arm)

-.type poly1305_blocks,%function
.align 5
-poly1305_blocks:
+ENTRY(poly1305_blocks_arm)
ands x2,x2,#-16
b.eq .Lno_data

@@ -126,11 +95,10 @@ poly1305_blocks:

.Lno_data:
ret
-.size poly1305_blocks,.-poly1305_blocks
+ENDPROC(poly1305_blocks_arm)

-.type poly1305_emit,%function
.align 5
-poly1305_emit:
+ENTRY(poly1305_emit_arm)
ldp x4,x5,[x0] // load hash base 2^64
ldr x6,[x0,#16]
ldp x10,x11,[x2] // load nonce
@@ -157,10 +125,10 @@ poly1305_emit:
stp x4,x5,[x1] // write result

ret
-.size poly1305_emit,.-poly1305_emit
-.type poly1305_mult,%function
+ENDPROC(poly1305_emit_arm)
+
.align 5
-poly1305_mult:
+__poly1305_mult:
mul x12,x4,x7 // h0*r0
umulh x13,x4,x7

@@ -193,11 +161,8 @@ poly1305_mult:
adc x6,x6,xzr

ret
-.size poly1305_mult,.-poly1305_mult

-.type poly1305_splat,%function
-.align 5
-poly1305_splat:
+__poly1305_splat:
and x12,x4,#0x03ffffff // base 2^64 -> base 2^26
ubfx x13,x4,#26,#26
extr x14,x5,x4,#52
@@ -220,15 +185,14 @@ poly1305_splat:
str w15,[x0,#16*8] // s4

ret
-.size poly1305_splat,.-poly1305_splat

-.type poly1305_blocks_neon,%function
+#ifdef CONFIG_KERNEL_MODE_NEON
.align 5
-poly1305_blocks_neon:
+ENTRY(poly1305_blocks_neon)
ldr x17,[x0,#24]
cmp x2,#128
b.hs .Lblocks_neon
- cbz x17,poly1305_blocks
+ cbz x17,poly1305_blocks_arm

.Lblocks_neon:
stp x29,x30,[sp,#-80]!
@@ -276,7 +240,7 @@ poly1305_blocks_neon:
adcs x5,x5,x13
adc x6,x6,x3

- bl poly1305_mult
+ bl __poly1305_mult
ldr x30,[sp,#8]

cbz x3,.Lstore_base2_64_neon
@@ -322,7 +286,7 @@ poly1305_blocks_neon:
adcs x5,x5,x13
adc x6,x6,x3

- bl poly1305_mult
+ bl __poly1305_mult

.Linit_neon:
and x10,x4,#0x03ffffff // base 2^64 -> base 2^26
@@ -349,19 +313,19 @@ poly1305_blocks_neon:
mov x5,x8
mov x6,xzr
add x0,x0,#48+12
- bl poly1305_splat
+ bl __poly1305_splat

- bl poly1305_mult // r^2
+ bl __poly1305_mult // r^2
sub x0,x0,#4
- bl poly1305_splat
+ bl __poly1305_splat

- bl poly1305_mult // r^3
+ bl __poly1305_mult // r^3
sub x0,x0,#4
- bl poly1305_splat
+ bl __poly1305_splat

- bl poly1305_mult // r^4
+ bl __poly1305_mult // r^4
sub x0,x0,#4
- bl poly1305_splat
+ bl __poly1305_splat
ldr x30,[sp,#8]

add x16,x1,#32
@@ -801,13 +765,12 @@ poly1305_blocks_neon:
.Lno_data_neon:
ldr x29,[sp],#80
ret
-.size poly1305_blocks_neon,.-poly1305_blocks_neon
+ENDPROC(poly1305_blocks_neon)

-.type poly1305_emit_neon,%function
.align 5
-poly1305_emit_neon:
+ENTRY(poly1305_emit_neon)
ldr x17,[x0,#24]
- cbz x17,poly1305_emit
+ cbz x17,poly1305_emit_arm

ldp w10,w11,[x0] // load hash value base 2^26
ldp w12,w13,[x0,#8]
@@ -853,17 +816,9 @@ poly1305_emit_neon:
stp x4,x5,[x1] // write result

ret
-.size poly1305_emit_neon,.-poly1305_emit_neon
+ENDPROC(poly1305_emit_neon)

.align 5
.Lzeros:
.long 0,0,0,0,0,0,0,0
-.LOPENSSL_armcap_P:
-#ifdef __ILP32__
-.long OPENSSL_armcap_P-.
-#else
-.quad OPENSSL_armcap_P-.
#endif
-.byte 80,111,108,121,49,51,48,53,32,102,111,114,32,65,82,77,118,56,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121,32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46,111,114,103,62,0
-.align 2
-.align 2
diff --git a/lib/zinc/poly1305/poly1305.c b/lib/zinc/poly1305/poly1305.c
index 2ae1b3cb66cd..647aa3354d38 100644
--- a/lib/zinc/poly1305/poly1305.c
+++ b/lib/zinc/poly1305/poly1305.c
@@ -17,6 +17,8 @@

#if defined(CONFIG_ZINC_ARCH_X86_64)
#include "poly1305-x86_64-glue.h"
+#elif defined(CONFIG_ZINC_ARCH_ARM) || defined(CONFIG_ZINC_ARCH_ARM64)
+#include "poly1305-arm-glue.h"
#else
static inline bool poly1305_init_arch(void *ctx,
const u8 key[POLY1305_KEY_SIZE])
--
2.19.0