1 files changed, 0 insertions, 100 deletions
diff --git a/arch/powerpc/lib/crypto/chacha-p10-glue.c b/arch/powerpc/lib/crypto/chacha-p10-glue.c
deleted file mode 100644
index fcd23c6f1590..000000000000
--- a/arch/powerpc/lib/crypto/chacha-p10-glue.c
+++ /dev/null
@@ -1,100 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * ChaCha stream cipher (P10 accelerated)
- *
- * Copyright 2023- IBM Corp. All rights reserved.
- */
-
-#include <crypto/chacha.h>
-#include <crypto/internal/simd.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/cpufeature.h>
-#include <linux/sizes.h>
-#include <asm/simd.h>
-#include <asm/switch_to.h>
-
-asmlinkage void chacha_p10le_8x(const struct chacha_state *state, u8 *dst,
-				const u8 *src, unsigned int len, int nrounds);
-
-static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_p10);
-
-static void vsx_begin(void)
-{
-	preempt_disable();
-	enable_kernel_vsx();
-}
-
-static void vsx_end(void)
-{
-	disable_kernel_vsx();
-	preempt_enable();
-}
-
-static void chacha_p10_do_8x(struct chacha_state *state, u8 *dst, const u8 *src,
-			     unsigned int bytes, int nrounds)
-{
-	unsigned int l = bytes & ~0x0FF;
-
-	if (l > 0) {
-		chacha_p10le_8x(state, dst, src, l, nrounds);
-		bytes -= l;
-		src += l;
-		dst += l;
-		state->x[12] += l / CHACHA_BLOCK_SIZE;
-	}
-
-	if (bytes > 0)
-		chacha_crypt_generic(state, dst, src, bytes, nrounds);
-}
-
-void hchacha_block_arch(const struct chacha_state *state,
-			u32 out[HCHACHA_OUT_WORDS], int nrounds)
-{
-	hchacha_block_generic(state, out, nrounds);
-}
-EXPORT_SYMBOL(hchacha_block_arch);
-
-void chacha_crypt_arch(struct chacha_state *state, u8 *dst, const u8 *src,
-		       unsigned int bytes, int nrounds)
-{
-	if (!static_branch_likely(&have_p10) || bytes <= CHACHA_BLOCK_SIZE ||
-	    !crypto_simd_usable())
-		return chacha_crypt_generic(state, dst, src, bytes, nrounds);
-
-	do {
-		unsigned int todo = min_t(unsigned int, bytes, SZ_4K);
-
-		vsx_begin();
-		chacha_p10_do_8x(state, dst, src, todo, nrounds);
-		vsx_end();
-
-		bytes -= todo;
-		src += todo;
-		dst += todo;
-	} while (bytes);
-}
-EXPORT_SYMBOL(chacha_crypt_arch);
-
-bool chacha_is_arch_optimized(void)
-{
-	return static_key_enabled(&have_p10);
-}
-EXPORT_SYMBOL(chacha_is_arch_optimized);
-
-static int __init chacha_p10_init(void)
-{
-	if (cpu_has_feature(CPU_FTR_ARCH_31))
-		static_branch_enable(&have_p10);
-	return 0;
-}
-subsys_initcall(chacha_p10_init);
-
-static void __exit chacha_p10_exit(void)
-{
-}
-module_exit(chacha_p10_exit);
-
-MODULE_DESCRIPTION("ChaCha stream cipher (P10 accelerated)");
-MODULE_AUTHOR("Danny Tsen <dtsen@linux.ibm.com>");
-MODULE_LICENSE("GPL v2");