1 files changed, 0 insertions, 149 deletions
diff --git a/drivers/crypto/vmx/aes_ctr.c b/drivers/crypto/vmx/aes_ctr.c
deleted file mode 100644
index 9a3da8cd6..000000000
--- a/drivers/crypto/vmx/aes_ctr.c
+++ /dev/null
@@ -1,149 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * AES CTR routines supporting VMX instructions on the Power 8
- *
- * Copyright (C) 2015 International Business Machines Inc.
- *
- * Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com>
- */
-
-#include <asm/simd.h>
-#include <asm/switch_to.h>
-#include <crypto/aes.h>
-#include <crypto/internal/simd.h>
-#include <crypto/internal/skcipher.h>
-
-#include "aesp8-ppc.h"
-
-struct p8_aes_ctr_ctx {
-	struct crypto_skcipher *fallback;
-	struct aes_key enc_key;
-};
-
-static int p8_aes_ctr_init(struct crypto_skcipher *tfm)
-{
-	struct p8_aes_ctr_ctx *ctx = crypto_skcipher_ctx(tfm);
-	struct crypto_skcipher *fallback;
-
-	fallback = crypto_alloc_skcipher("ctr(aes)", 0,
-					 CRYPTO_ALG_NEED_FALLBACK |
-					 CRYPTO_ALG_ASYNC);
-	if (IS_ERR(fallback)) {
-		pr_err("Failed to allocate ctr(aes) fallback: %ld\n",
-		       PTR_ERR(fallback));
-		return PTR_ERR(fallback);
-	}
-
-	crypto_skcipher_set_reqsize(tfm, sizeof(struct skcipher_request) +
-				    crypto_skcipher_reqsize(fallback));
-	ctx->fallback = fallback;
-	return 0;
-}
-
-static void p8_aes_ctr_exit(struct crypto_skcipher *tfm)
-{
-	struct p8_aes_ctr_ctx *ctx = crypto_skcipher_ctx(tfm);
-
-	crypto_free_skcipher(ctx->fallback);
-}
-
-static int p8_aes_ctr_setkey(struct crypto_skcipher *tfm, const u8 *key,
-			     unsigned int keylen)
-{
-	struct p8_aes_ctr_ctx *ctx = crypto_skcipher_ctx(tfm);
-	int ret;
-
-	preempt_disable();
-	pagefault_disable();
-	enable_kernel_vsx();
-	ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
-	disable_kernel_vsx();
-	pagefault_enable();
-	preempt_enable();
-
-	ret |= crypto_skcipher_setkey(ctx->fallback, key, keylen);
-
-	return ret ? -EINVAL : 0;
-}
-
-static void p8_aes_ctr_final(const struct p8_aes_ctr_ctx *ctx,
-			     struct skcipher_walk *walk)
-{
-	u8 *ctrblk = walk->iv;
-	u8 keystream[AES_BLOCK_SIZE];
-	u8 *src = walk->src.virt.addr;
-	u8 *dst = walk->dst.virt.addr;
-	unsigned int nbytes = walk->nbytes;
-
-	preempt_disable();
-	pagefault_disable();
-	enable_kernel_vsx();
-	aes_p8_encrypt(ctrblk, keystream, &ctx->enc_key);
-	disable_kernel_vsx();
-	pagefault_enable();
-	preempt_enable();
-
-	crypto_xor_cpy(dst, keystream, src, nbytes);
-	crypto_inc(ctrblk, AES_BLOCK_SIZE);
-}
-
-static int p8_aes_ctr_crypt(struct skcipher_request *req)
-{
-	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
-	const struct p8_aes_ctr_ctx *ctx = crypto_skcipher_ctx(tfm);
-	struct skcipher_walk walk;
-	unsigned int nbytes;
-	int ret;
-
-	if (!crypto_simd_usable()) {
-		struct skcipher_request *subreq = skcipher_request_ctx(req);
-
-		*subreq = *req;
-		skcipher_request_set_tfm(subreq, ctx->fallback);
-		return crypto_skcipher_encrypt(subreq);
-	}
-
-	ret = skcipher_walk_virt(&walk, req, false);
-	while ((nbytes = walk.nbytes) >= AES_BLOCK_SIZE) {
-		preempt_disable();
-		pagefault_disable();
-		enable_kernel_vsx();
-		aes_p8_ctr32_encrypt_blocks(walk.src.virt.addr,
-					    walk.dst.virt.addr,
-					    nbytes / AES_BLOCK_SIZE,
-					    &ctx->enc_key, walk.iv);
-		disable_kernel_vsx();
-		pagefault_enable();
-		preempt_enable();
-
-		do {
-			crypto_inc(walk.iv, AES_BLOCK_SIZE);
-		} while ((nbytes -= AES_BLOCK_SIZE) >= AES_BLOCK_SIZE);
-
-		ret = skcipher_walk_done(&walk, nbytes);
-	}
-	if (nbytes) {
-		p8_aes_ctr_final(ctx, &walk);
-		ret = skcipher_walk_done(&walk, 0);
-	}
-	return ret;
-}
-
-struct skcipher_alg p8_aes_ctr_alg = {
-	.base.cra_name = "ctr(aes)",
-	.base.cra_driver_name = "p8_aes_ctr",
-	.base.cra_module = THIS_MODULE,
-	.base.cra_priority = 2000,
-	.base.cra_flags = CRYPTO_ALG_NEED_FALLBACK,
-	.base.cra_blocksize = 1,
-	.base.cra_ctxsize = sizeof(struct p8_aes_ctr_ctx),
-	.setkey = p8_aes_ctr_setkey,
-	.encrypt = p8_aes_ctr_crypt,
-	.decrypt = p8_aes_ctr_crypt,
-	.init = p8_aes_ctr_init,
-	.exit = p8_aes_ctr_exit,
-	.min_keysize = AES_MIN_KEY_SIZE,
-	.max_keysize = AES_MAX_KEY_SIZE,
-	.ivsize = AES_BLOCK_SIZE,
-	.chunksize = AES_BLOCK_SIZE,
-};