Merging upstream version 6.9.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 162 deletions

diff --git a/drivers/crypto/vmx/aes_xts.c b/drivers/crypto/vmx/aes_xts.c
deleted file mode 100644
index dabbccb415..0000000000
--- a/drivers/crypto/vmx/aes_xts.c
+++ /dev/null
@@ -1,162 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * AES XTS routines supporting VMX In-core instructions on Power 8
- *
- * Copyright (C) 2015 International Business Machines Inc.
- *
- * Author: Leonidas S. Barbosa <leosilva@linux.vnet.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 <crypto/xts.h>
-
-#include "aesp8-ppc.h"
-
-struct p8_aes_xts_ctx {
-	struct crypto_skcipher *fallback;
-	struct aes_key enc_key;
-	struct aes_key dec_key;
-	struct aes_key tweak_key;
-};
-
-static int p8_aes_xts_init(struct crypto_skcipher *tfm)
-{
-	struct p8_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
-	struct crypto_skcipher *fallback;
-
-	fallback = crypto_alloc_skcipher("xts(aes)", 0,
-					 CRYPTO_ALG_NEED_FALLBACK |
-					 CRYPTO_ALG_ASYNC);
-	if (IS_ERR(fallback)) {
-		pr_err("Failed to allocate xts(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_xts_exit(struct crypto_skcipher *tfm)
-{
-	struct p8_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
-
-	crypto_free_skcipher(ctx->fallback);
-}
-
-static int p8_aes_xts_setkey(struct crypto_skcipher *tfm, const u8 *key,
-			     unsigned int keylen)
-{
-	struct p8_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
-	int ret;
-
-	ret = xts_verify_key(tfm, key, keylen);
-	if (ret)
-		return ret;
-
-	preempt_disable();
-	pagefault_disable();
-	enable_kernel_vsx();
-	ret = aes_p8_set_encrypt_key(key + keylen/2, (keylen/2) * 8, &ctx->tweak_key);
-	ret |= aes_p8_set_encrypt_key(key, (keylen/2) * 8, &ctx->enc_key);
-	ret |= aes_p8_set_decrypt_key(key, (keylen/2) * 8, &ctx->dec_key);
-	disable_kernel_vsx();
-	pagefault_enable();
-	preempt_enable();
-
-	ret |= crypto_skcipher_setkey(ctx->fallback, key, keylen);
-
-	return ret ? -EINVAL : 0;
-}
-
-static int p8_aes_xts_crypt(struct skcipher_request *req, int enc)
-{
-	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
-	const struct p8_aes_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
-	struct skcipher_walk walk;
-	unsigned int nbytes;
-	u8 tweak[AES_BLOCK_SIZE];
-	int ret;
-
-	if (req->cryptlen < AES_BLOCK_SIZE)
-		return -EINVAL;
-
-	if (!crypto_simd_usable() || (req->cryptlen % XTS_BLOCK_SIZE) != 0) {
-		struct skcipher_request *subreq = skcipher_request_ctx(req);
-
-		*subreq = *req;
-		skcipher_request_set_tfm(subreq, ctx->fallback);
-		return enc ? crypto_skcipher_encrypt(subreq) :
-			     crypto_skcipher_decrypt(subreq);
-	}
-
-	ret = skcipher_walk_virt(&walk, req, false);
-	if (ret)
-		return ret;
-
-	preempt_disable();
-	pagefault_disable();
-	enable_kernel_vsx();
-
-	aes_p8_encrypt(walk.iv, tweak, &ctx->tweak_key);
-
-	disable_kernel_vsx();
-	pagefault_enable();
-	preempt_enable();
-
-	while ((nbytes = walk.nbytes) != 0) {
-		preempt_disable();
-		pagefault_disable();
-		enable_kernel_vsx();
-		if (enc)
-			aes_p8_xts_encrypt(walk.src.virt.addr,
-					   walk.dst.virt.addr,
-					   round_down(nbytes, AES_BLOCK_SIZE),
-					   &ctx->enc_key, NULL, tweak);
-		else
-			aes_p8_xts_decrypt(walk.src.virt.addr,
-					   walk.dst.virt.addr,
-					   round_down(nbytes, AES_BLOCK_SIZE),
-					   &ctx->dec_key, NULL, tweak);
-		disable_kernel_vsx();
-		pagefault_enable();
-		preempt_enable();
-
-		ret = skcipher_walk_done(&walk, nbytes % AES_BLOCK_SIZE);
-	}
-	return ret;
-}
-
-static int p8_aes_xts_encrypt(struct skcipher_request *req)
-{
-	return p8_aes_xts_crypt(req, 1);
-}
-
-static int p8_aes_xts_decrypt(struct skcipher_request *req)
-{
-	return p8_aes_xts_crypt(req, 0);
-}
-
-struct skcipher_alg p8_aes_xts_alg = {
-	.base.cra_name = "xts(aes)",
-	.base.cra_driver_name = "p8_aes_xts",
-	.base.cra_module = THIS_MODULE,
-	.base.cra_priority = 2000,
-	.base.cra_flags = CRYPTO_ALG_NEED_FALLBACK,
-	.base.cra_blocksize = AES_BLOCK_SIZE,
-	.base.cra_ctxsize = sizeof(struct p8_aes_xts_ctx),
-	.setkey = p8_aes_xts_setkey,
-	.encrypt = p8_aes_xts_encrypt,
-	.decrypt = p8_aes_xts_decrypt,
-	.init = p8_aes_xts_init,
-	.exit = p8_aes_xts_exit,
-	.min_keysize = 2 * AES_MIN_KEY_SIZE,
-	.max_keysize = 2 * AES_MAX_KEY_SIZE,
-	.ivsize = AES_BLOCK_SIZE,
-};