1 files changed, 0 insertions, 140 deletions
diff --git a/sys/dev/if_wg/module/crypto/zinc/poly1305/poly1305-arm-glue.c b/sys/dev/if_wg/module/crypto/zinc/poly1305/poly1305-arm-glue.c
deleted file mode 100644
index 291fe4ba98b0..000000000000
--- a/sys/dev/if_wg/module/crypto/zinc/poly1305/poly1305-arm-glue.c
+++ /dev/null
@@ -1,140 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0 OR MIT
-/*
- * Copyright (C) 2015-2019 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]);
-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]);
-
-static bool poly1305_use_neon __ro_after_init;
-static bool *const poly1305_nobs[] __initconst = { &poly1305_use_neon };
-
-static void __init poly1305_fpu_init(void)
-{
-#if defined(CONFIG_ZINC_ARCH_ARM64)
-	poly1305_use_neon = cpu_have_named_feature(ASIMD);
-#elif defined(CONFIG_ZINC_ARCH_ARM)
-	poly1305_use_neon = elf_hwcap & HWCAP_NEON;
-#endif
-}
-
-#if defined(CONFIG_ZINC_ARCH_ARM64)
-struct poly1305_arch_internal {
-	union {
-		u32 h[5];
-		struct {
-			u64 h0, h1, h2;
-		};
-	};
-	u64 is_base2_26;
-	u64 r[2];
-};
-#elif defined(CONFIG_ZINC_ARCH_ARM)
-struct poly1305_arch_internal {
-	union {
-		u32 h[5];
-		struct {
-			u64 h0, h1;
-			u32 h2;
-		} __packed;
-	};
-	u32 r[4];
-	u32 is_base2_26;
-};
-#endif
-
-/* The NEON code uses base 2^26, while the scalar code uses base 2^64 on 64-bit
- * and base 2^32 on 32-bit. If we hit the unfortunate situation of using NEON
- * and then having to go back to scalar -- because the user is silly and has
- * called the update function from two separate contexts -- then we need to
- * convert back to the original base before proceeding. The below function is
- * written for 64-bit integers, and so we have to swap words at the end on
- * big-endian 32-bit. It is possible to reason that the initial reduction below
- * is sufficient given the implementation invariants. However, for an avoidance
- * of doubt and because this is not performance critical, we do the full
- * reduction anyway.
- */
-static void convert_to_base2_64(void *ctx)
-{
-	struct poly1305_arch_internal *state = ctx;
-	u32 cy;
-
-	if (!IS_ENABLED(CONFIG_KERNEL_MODE_NEON) || !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;
-	if (IS_ENABLED(CONFIG_ZINC_ARCH_ARM) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) {
-		state->h0 = rol64(state->h0, 32);
-		state->h1 = rol64(state->h1, 32);
-	}
-#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;
-}
-
-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,
-					size_t len, const u32 padbit,
-					simd_context_t *simd_context)
-{
-	/* SIMD disables preemption, so relax after processing each page. */
-	BUILD_BUG_ON(PAGE_SIZE < POLY1305_BLOCK_SIZE ||
-		     PAGE_SIZE % POLY1305_BLOCK_SIZE);
-
-	if (!IS_ENABLED(CONFIG_KERNEL_MODE_NEON) || !poly1305_use_neon ||
-	    !simd_use(simd_context)) {
-		convert_to_base2_64(ctx);
-		poly1305_blocks_arm(ctx, inp, len, padbit);
-		return true;
-	}
-
-	for (;;) {
-		const size_t bytes = min_t(size_t, len, PAGE_SIZE);
-
-		poly1305_blocks_neon(ctx, inp, bytes, padbit);
-		len -= bytes;
-		if (!len)
-			break;
-		inp += bytes;
-		simd_relax(simd_context);
-	}
-	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 (!IS_ENABLED(CONFIG_KERNEL_MODE_NEON) || !poly1305_use_neon ||
-	    !simd_use(simd_context)) {
-		convert_to_base2_64(ctx);
-		poly1305_emit_arm(ctx, mac, nonce);
-	} else
-		poly1305_emit_neon(ctx, mac, nonce);
-	return true;
-}