From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:48789 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751654AbbIWE67 (ORCPT ); Wed, 23 Sep 2015 00:58:59 -0400 Subject: Patch "crypto: vmx - Adding enable_kernel_vsx() to access VSX instructions" has been added to the 4.1-stable tree To: leosilva@linux.vnet.ibm.com, gregkh@linuxfoundation.org, herbert@gondor.apana.org.au, mpe@ellerman.id.au Cc: , From: Date: Tue, 22 Sep 2015 21:58:58 -0700 Message-ID: <14429843381052@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled crypto: vmx - Adding enable_kernel_vsx() to access VSX instructions to the 4.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: crypto-vmx-adding-enable_kernel_vsx-to-access-vsx-instructions.patch and it can be found in the queue-4.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 2d6f0600b2cd755959527230ef5a6fba97bb762a Mon Sep 17 00:00:00 2001 From: Leonidas Da Silva Barbosa Date: Mon, 13 Jul 2015 13:51:39 -0300 Subject: crypto: vmx - Adding enable_kernel_vsx() to access VSX instructions From: Leonidas Da Silva Barbosa commit 2d6f0600b2cd755959527230ef5a6fba97bb762a upstream. vmx-crypto driver make use of some VSX instructions which are only available if VSX is enabled. Running in cases where VSX are not enabled vmx-crypto fails in a VSX exception. In order to fix this enable_kernel_vsx() was added to turn on VSX instructions for vmx-crypto. Signed-off-by: Leonidas S. Barbosa Signed-off-by: Herbert Xu Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- drivers/crypto/vmx/aes.c | 3 +++ drivers/crypto/vmx/aes_cbc.c | 3 +++ drivers/crypto/vmx/aes_ctr.c | 3 +++ drivers/crypto/vmx/ghash.c | 4 ++++ 4 files changed, 13 insertions(+) --- a/drivers/crypto/vmx/aes.c +++ b/drivers/crypto/vmx/aes.c @@ -80,6 +80,7 @@ static int p8_aes_setkey(struct crypto_t pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key); ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key); pagefault_enable(); @@ -97,6 +98,7 @@ static void p8_aes_encrypt(struct crypto } else { pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); aes_p8_encrypt(src, dst, &ctx->enc_key); pagefault_enable(); } @@ -111,6 +113,7 @@ static void p8_aes_decrypt(struct crypto } else { pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); aes_p8_decrypt(src, dst, &ctx->dec_key); pagefault_enable(); } --- a/drivers/crypto/vmx/aes_cbc.c +++ b/drivers/crypto/vmx/aes_cbc.c @@ -81,6 +81,7 @@ static int p8_aes_cbc_setkey(struct cryp pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key); ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key); pagefault_enable(); @@ -108,6 +109,7 @@ static int p8_aes_cbc_encrypt(struct blk } else { pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); blkcipher_walk_init(&walk, dst, src, nbytes); ret = blkcipher_walk_virt(desc, &walk); @@ -143,6 +145,7 @@ static int p8_aes_cbc_decrypt(struct blk } else { pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); blkcipher_walk_init(&walk, dst, src, nbytes); ret = blkcipher_walk_virt(desc, &walk); --- a/drivers/crypto/vmx/aes_ctr.c +++ b/drivers/crypto/vmx/aes_ctr.c @@ -79,6 +79,7 @@ static int p8_aes_ctr_setkey(struct cryp pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key); pagefault_enable(); @@ -97,6 +98,7 @@ static void p8_aes_ctr_final(struct p8_a pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); aes_p8_encrypt(ctrblk, keystream, &ctx->enc_key); pagefault_enable(); @@ -127,6 +129,7 @@ static int p8_aes_ctr_crypt(struct blkci while ((nbytes = walk.nbytes) >= AES_BLOCK_SIZE) { pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); aes_p8_ctr32_encrypt_blocks(walk.src.virt.addr, walk.dst.virt.addr, (nbytes & AES_BLOCK_MASK)/AES_BLOCK_SIZE, &ctx->enc_key, walk.iv); pagefault_enable(); --- a/drivers/crypto/vmx/ghash.c +++ b/drivers/crypto/vmx/ghash.c @@ -116,6 +116,7 @@ static int p8_ghash_setkey(struct crypto pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); enable_kernel_fp(); gcm_init_p8(ctx->htable, (const u64 *) key); pagefault_enable(); @@ -142,6 +143,7 @@ static int p8_ghash_update(struct shash_ GHASH_DIGEST_SIZE - dctx->bytes); pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); enable_kernel_fp(); gcm_ghash_p8(dctx->shash, ctx->htable, dctx->buffer, GHASH_DIGEST_SIZE); @@ -154,6 +156,7 @@ static int p8_ghash_update(struct shash_ if (len) { pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); enable_kernel_fp(); gcm_ghash_p8(dctx->shash, ctx->htable, src, len); pagefault_enable(); @@ -182,6 +185,7 @@ static int p8_ghash_final(struct shash_d dctx->buffer[i] = 0; pagefault_disable(); enable_kernel_altivec(); + enable_kernel_vsx(); enable_kernel_fp(); gcm_ghash_p8(dctx->shash, ctx->htable, dctx->buffer, GHASH_DIGEST_SIZE); Patches currently in stable-queue which might be from leosilva@linux.vnet.ibm.com are queue-4.1/powerpc-uncomment-and-make-enable_kernel_vsx-routine-available.patch queue-4.1/crypto-vmx-adding-enable_kernel_vsx-to-access-vsx-instructions.patch