Date:   Tue, 25 Sep 2018 16:56:11 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-crypto@...r.kernel.org, davem@...emloft.net,
        gregkh@...uxfoundation.org
Cc:     "Jason A. Donenfeld" <Jason@...c4.com>,
        Samuel Neves <sneves@....uc.pt>,
        Andy Lutomirski <luto@...nel.org>,
        Jean-Philippe Aumasson <jeanphilippe.aumasson@...il.com>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH net-next v6 12/23] zinc: Poly1305 ARM and ARM64 implementations

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@...c4.com>
Cc: Samuel Neves <sneves@....uc.pt>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Greg KH <gregkh@...uxfoundation.org>
Cc: Jean-Philippe Aumasson <jeanphilippe.aumasson@...il.com>
Cc: Russell King <linux@...linux.org.uk>
Cc: linux-arm-kernel@...ts.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@...c4.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@...c4.com>. All Rights Reserved.
  * Copyright (C) 2006-2017 CRYPTOGAMS by <appro@...nssl.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@...nssl.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@...c4.com>. All Rights Reserved.
  * Copyright (C) 2006-2017 CRYPTOGAMS by <appro@...nssl.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

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