diff options
Diffstat (limited to 'drivers/crypto')
41 files changed, 126 insertions, 193 deletions
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index 177b7713bd2d..0af08081e305 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only menuconfig CRYPTO_HW bool "Hardware crypto devices" diff --git a/drivers/crypto/amcc/Makefile b/drivers/crypto/amcc/Makefile index e33c185fc163..d6623991328c 100644 --- a/drivers/crypto/amcc/Makefile +++ b/drivers/crypto/amcc/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_CRYPTO_DEV_PPC4XX) += crypto4xx.o crypto4xx-y := crypto4xx_core.o crypto4xx_alg.o crypto4xx-$(CONFIG_HW_RANDOM_PPC4XX) += crypto4xx_trng.o diff --git a/drivers/crypto/axis/Makefile b/drivers/crypto/axis/Makefile index be9a84a4b667..146e09e4cc89 100644 --- a/drivers/crypto/axis/Makefile +++ b/drivers/crypto/axis/Makefile @@ -1 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_CRYPTO_DEV_ARTPEC6) := artpec6_crypto.o diff --git a/drivers/crypto/axis/artpec6_crypto.c b/drivers/crypto/axis/artpec6_crypto.c index d2fb72811442..80fa04ef215f 100644 --- a/drivers/crypto/axis/artpec6_crypto.c +++ b/drivers/crypto/axis/artpec6_crypto.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Driver for ARTPEC-6 crypto block using the kernel asynchronous crypto api. * diff --git a/drivers/crypto/bcm/Makefile b/drivers/crypto/bcm/Makefile index 7469e19afe85..8a2110b4eb8f 100644 --- a/drivers/crypto/bcm/Makefile +++ b/drivers/crypto/bcm/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # File: drivers/crypto/bcm/Makefile # # Makefile for crypto acceleration files for Broadcom SPU driver diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c index e2ba3d202da5..fec39c35c877 100644 --- a/drivers/crypto/caam/ctrl.c +++ b/drivers/crypto/caam/ctrl.c @@ -469,7 +469,7 @@ static int caam_get_era(struct caam_ctrl __iomem *ctrl) } /* - * ERRATA: imx6 devices (imx6D, imx6Q, imx6DL, imx6S, imx6DP and imx6DQ) + * ERRATA: imx6 devices (imx6D, imx6Q, imx6DL, imx6S, imx6DP and imx6QP) * have an issue wherein AXI bus transactions may not occur in the correct * order. This isn't a problem running single descriptors, but can be if * running multiple concurrent descriptors. Reworking the driver to throttle diff --git a/drivers/crypto/cavium/Makefile b/drivers/crypto/cavium/Makefile index 641268b784be..4679c06b611f 100644 --- a/drivers/crypto/cavium/Makefile +++ b/drivers/crypto/cavium/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for Cavium crypto device drivers # diff --git a/drivers/crypto/cavium/cpt/Kconfig b/drivers/crypto/cavium/cpt/Kconfig index cbd51b1aa046..b9874058d4fa 100644 --- a/drivers/crypto/cavium/cpt/Kconfig +++ b/drivers/crypto/cavium/cpt/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Cavium crypto device configuration # diff --git a/drivers/crypto/cavium/cpt/Makefile b/drivers/crypto/cavium/cpt/Makefile index dbf055e14622..0f04f1b5c6d1 100644 --- a/drivers/crypto/cavium/cpt/Makefile +++ b/drivers/crypto/cavium/cpt/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_CAVIUM_CPT) += cptpf.o cptvf.o cptpf-objs := cptpf_main.o cptpf_mbox.o cptvf-objs := cptvf_main.o cptvf_reqmanager.o cptvf_mbox.o cptvf_algs.o diff --git a/drivers/crypto/cavium/nitrox/Kconfig b/drivers/crypto/cavium/nitrox/Kconfig index 181a1dfec932..dab162af41b8 100644 --- a/drivers/crypto/cavium/nitrox/Kconfig +++ b/drivers/crypto/cavium/nitrox/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Cavium NITROX Crypto Device configuration # diff --git a/drivers/crypto/cavium/nitrox/nitrox_main.c b/drivers/crypto/cavium/nitrox/nitrox_main.c index faa78f651238..fe825d0ef9ca 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_main.c +++ b/drivers/crypto/cavium/nitrox/nitrox_main.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only #include <linux/aer.h> #include <linux/delay.h> #include <linux/firmware.h> diff --git a/drivers/crypto/ccp/Kconfig b/drivers/crypto/ccp/Kconfig index b9dfae47aefd..48f3edc1e3fb 100644 --- a/drivers/crypto/ccp/Kconfig +++ b/drivers/crypto/ccp/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config CRYPTO_DEV_CCP_DD tristate "Secure Processor device driver" depends on CPU_SUP_AMD || ARM64 diff --git a/drivers/crypto/chelsio/Kconfig b/drivers/crypto/chelsio/Kconfig index 930d82d991f2..4b9b37a130d3 100644 --- a/drivers/crypto/chelsio/Kconfig +++ b/drivers/crypto/chelsio/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config CRYPTO_DEV_CHELSIO tristate "Chelsio Crypto Co-processor Driver" depends on CHELSIO_T4 diff --git a/drivers/crypto/chelsio/Makefile b/drivers/crypto/chelsio/Makefile index b7bd980a27d8..a3c05e2f4562 100644 --- a/drivers/crypto/chelsio/Makefile +++ b/drivers/crypto/chelsio/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only ccflags-y := -I $(srctree)/drivers/net/ethernet/chelsio/cxgb4 obj-$(CONFIG_CRYPTO_DEV_CHELSIO) += chcr.o diff --git a/drivers/crypto/chelsio/chtls/Makefile b/drivers/crypto/chelsio/chtls/Makefile index b958f1b8ec39..bc11495acdb3 100644 --- a/drivers/crypto/chelsio/chtls/Makefile +++ b/drivers/crypto/chelsio/chtls/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only ccflags-y := -I $(srctree)/drivers/net/ethernet/chelsio/cxgb4 \ -I $(srctree)/drivers/crypto/chelsio diff --git a/drivers/crypto/inside-secure/Makefile b/drivers/crypto/inside-secure/Makefile index 302f07dde98c..13f64f96c626 100644 --- a/drivers/crypto/inside-secure/Makefile +++ b/drivers/crypto/inside-secure/Makefile @@ -1,2 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_CRYPTO_DEV_SAFEXCEL) += crypto_safexcel.o crypto_safexcel-objs := safexcel.o safexcel_ring.o safexcel_cipher.o safexcel_hash.o diff --git a/drivers/crypto/marvell/Makefile b/drivers/crypto/marvell/Makefile index 0c12b13574dc..b27cab65e696 100644 --- a/drivers/crypto/marvell/Makefile +++ b/drivers/crypto/marvell/Makefile @@ -1,2 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_CRYPTO_DEV_MARVELL_CESA) += marvell-cesa.o marvell-cesa-objs := cesa.o cipher.o hash.o tdma.o diff --git a/drivers/crypto/mediatek/Makefile b/drivers/crypto/mediatek/Makefile index 187be79c7f3e..196a4653974e 100644 --- a/drivers/crypto/mediatek/Makefile +++ b/drivers/crypto/mediatek/Makefile @@ -1,2 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_CRYPTO_DEV_MEDIATEK) += mtk-crypto.o mtk-crypto-objs:= mtk-platform.o mtk-aes.o mtk-sha.o diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c index 0d5d3d8eb680..760e72a5893b 100644 --- a/drivers/crypto/n2_core.c +++ b/drivers/crypto/n2_core.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* n2_core.c: Niagara2 Stream Processing Unit (SPU) crypto support. * * Copyright (C) 2010, 2011 David S. Miller <davem@davemloft.net> diff --git a/drivers/crypto/nx/Kconfig b/drivers/crypto/nx/Kconfig index cd5dda9c48f4..23e3d0160e67 100644 --- a/drivers/crypto/nx/Kconfig +++ b/drivers/crypto/nx/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config CRYPTO_DEV_NX_ENCRYPT tristate "Encryption acceleration support on pSeries platform" diff --git a/drivers/crypto/nx/nx-842-pseries.c b/drivers/crypto/nx/nx-842-pseries.c index 57932848361b..5c4aa606208c 100644 --- a/drivers/crypto/nx/nx-842-pseries.c +++ b/drivers/crypto/nx/nx-842-pseries.c @@ -1,20 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for IBM Power 842 compression accelerator * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * * Copyright (C) IBM Corporation, 2012 * * Authors: Robert Jennings <rcj@linux.vnet.ibm.com> diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c index 09d823d36d3a..ad020133da19 100644 --- a/drivers/crypto/padlock-aes.c +++ b/drivers/crypto/padlock-aes.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Cryptographic API. * diff --git a/drivers/crypto/qat/Kconfig b/drivers/crypto/qat/Kconfig index ce3cae40f949..6ab7e5a88756 100644 --- a/drivers/crypto/qat/Kconfig +++ b/drivers/crypto/qat/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config CRYPTO_DEV_QAT tristate select CRYPTO_AEAD diff --git a/drivers/crypto/qat/qat_c3xxx/Makefile b/drivers/crypto/qat/qat_c3xxx/Makefile index 822b5de58ec6..92ef416ccc78 100644 --- a/drivers/crypto/qat/qat_c3xxx/Makefile +++ b/drivers/crypto/qat/qat_c3xxx/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only ccflags-y := -I $(srctree)/$(src)/../qat_common obj-$(CONFIG_CRYPTO_DEV_QAT_C3XXX) += qat_c3xxx.o qat_c3xxx-objs := adf_drv.o adf_c3xxx_hw_data.o diff --git a/drivers/crypto/qat/qat_c3xxxvf/Makefile b/drivers/crypto/qat/qat_c3xxxvf/Makefile index 8f56d27c7479..b6d76825a92c 100644 --- a/drivers/crypto/qat/qat_c3xxxvf/Makefile +++ b/drivers/crypto/qat/qat_c3xxxvf/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only ccflags-y := -I $(srctree)/$(src)/../qat_common obj-$(CONFIG_CRYPTO_DEV_QAT_C3XXXVF) += qat_c3xxxvf.o qat_c3xxxvf-objs := adf_drv.o adf_c3xxxvf_hw_data.o diff --git a/drivers/crypto/qat/qat_c62x/Makefile b/drivers/crypto/qat/qat_c62x/Makefile index 6dcd404578fc..d581f7c87d6c 100644 --- a/drivers/crypto/qat/qat_c62x/Makefile +++ b/drivers/crypto/qat/qat_c62x/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only ccflags-y := -I $(srctree)/$(src)/../qat_common obj-$(CONFIG_CRYPTO_DEV_QAT_C62X) += qat_c62x.o qat_c62x-objs := adf_drv.o adf_c62x_hw_data.o diff --git a/drivers/crypto/qat/qat_c62xvf/Makefile b/drivers/crypto/qat/qat_c62xvf/Makefile index 1e5d51de778f..446c3d638605 100644 --- a/drivers/crypto/qat/qat_c62xvf/Makefile +++ b/drivers/crypto/qat/qat_c62xvf/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only ccflags-y := -I $(srctree)/$(src)/../qat_common obj-$(CONFIG_CRYPTO_DEV_QAT_C62XVF) += qat_c62xvf.o qat_c62xvf-objs := adf_drv.o adf_c62xvf_hw_data.o diff --git a/drivers/crypto/qat/qat_dh895xcc/Makefile b/drivers/crypto/qat/qat_dh895xcc/Makefile index 0fc06b1e1632..38d6f8e1624a 100644 --- a/drivers/crypto/qat/qat_dh895xcc/Makefile +++ b/drivers/crypto/qat/qat_dh895xcc/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only ccflags-y := -I $(srctree)/$(src)/../qat_common obj-$(CONFIG_CRYPTO_DEV_QAT_DH895xCC) += qat_dh895xcc.o qat_dh895xcc-objs := adf_drv.o adf_dh895xcc_hw_data.o diff --git a/drivers/crypto/qat/qat_dh895xccvf/Makefile b/drivers/crypto/qat/qat_dh895xccvf/Makefile index 9ce906af6034..0153c85ce743 100644 --- a/drivers/crypto/qat/qat_dh895xccvf/Makefile +++ b/drivers/crypto/qat/qat_dh895xccvf/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only ccflags-y := -I $(srctree)/$(src)/../qat_common obj-$(CONFIG_CRYPTO_DEV_QAT_DH895xCCVF) += qat_dh895xccvf.o qat_dh895xccvf-objs := adf_drv.o adf_dh895xccvf_hw_data.o diff --git a/drivers/crypto/rockchip/Makefile b/drivers/crypto/rockchip/Makefile index 30f91297b4b6..6e23764e6c8a 100644 --- a/drivers/crypto/rockchip/Makefile +++ b/drivers/crypto/rockchip/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_CRYPTO_DEV_ROCKCHIP) += rk_crypto.o rk_crypto-objs := rk3288_crypto.o \ rk3288_crypto_ablkcipher.o \ diff --git a/drivers/crypto/stm32/Kconfig b/drivers/crypto/stm32/Kconfig index 4491e2197d9f..d6576280fc9b 100644 --- a/drivers/crypto/stm32/Kconfig +++ b/drivers/crypto/stm32/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config CRYPTO_DEV_STM32_CRC tristate "Support for STM32 crc accelerators" depends on ARCH_STM32 diff --git a/drivers/crypto/stm32/Makefile b/drivers/crypto/stm32/Makefile index 53d1bb94b221..ce77e38c77e0 100644 --- a/drivers/crypto/stm32/Makefile +++ b/drivers/crypto/stm32/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_CRYPTO_DEV_STM32_CRC) += stm32_crc32.o obj-$(CONFIG_CRYPTO_DEV_STM32_HASH) += stm32-hash.o obj-$(CONFIG_CRYPTO_DEV_STM32_CRYP) += stm32-cryp.o diff --git a/drivers/crypto/sunxi-ss/Makefile b/drivers/crypto/sunxi-ss/Makefile index ccb893219079..c0a2797d3168 100644 --- a/drivers/crypto/sunxi-ss/Makefile +++ b/drivers/crypto/sunxi-ss/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_CRYPTO_DEV_SUN4I_SS) += sun4i-ss.o sun4i-ss-y += sun4i-ss-core.o sun4i-ss-hash.o sun4i-ss-cipher.o sun4i-ss-$(CONFIG_CRYPTO_DEV_SUN4I_SS_PRNG) += sun4i-ss-prng.o diff --git a/drivers/crypto/virtio/Kconfig b/drivers/crypto/virtio/Kconfig index a4324b1383a4..01b625e4e5ad 100644 --- a/drivers/crypto/virtio/Kconfig +++ b/drivers/crypto/virtio/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config CRYPTO_DEV_VIRTIO tristate "VirtIO crypto driver" depends on VIRTIO diff --git a/drivers/crypto/virtio/virtio_crypto_algs.c b/drivers/crypto/virtio/virtio_crypto_algs.c index 0704833ece92..10f266d462d6 100644 --- a/drivers/crypto/virtio/virtio_crypto_algs.c +++ b/drivers/crypto/virtio/virtio_crypto_algs.c @@ -1,21 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* Algorithms supported by virtio crypto device * * Authors: Gonglei <arei.gonglei@huawei.com> * * Copyright 2016 HUAWEI TECHNOLOGIES CO., LTD. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/scatterlist.h> diff --git a/drivers/crypto/virtio/virtio_crypto_common.h b/drivers/crypto/virtio/virtio_crypto_common.h index 63ef7f7924ea..1c6e00da5a29 100644 --- a/drivers/crypto/virtio/virtio_crypto_common.h +++ b/drivers/crypto/virtio/virtio_crypto_common.h @@ -1,19 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Common header for Virtio crypto device. * * Copyright 2016 HUAWEI TECHNOLOGIES CO., LTD. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef _VIRTIO_CRYPTO_COMMON_H diff --git a/drivers/crypto/virtio/virtio_crypto_core.c b/drivers/crypto/virtio/virtio_crypto_core.c index 3c9e120287af..c8a962c62663 100644 --- a/drivers/crypto/virtio/virtio_crypto_core.c +++ b/drivers/crypto/virtio/virtio_crypto_core.c @@ -1,19 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* Driver for Virtio crypto device. * * Copyright 2016 HUAWEI TECHNOLOGIES CO., LTD. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/err.h> diff --git a/drivers/crypto/virtio/virtio_crypto_mgr.c b/drivers/crypto/virtio/virtio_crypto_mgr.c index d70de3a4f7d7..6860f8180c7c 100644 --- a/drivers/crypto/virtio/virtio_crypto_mgr.c +++ b/drivers/crypto/virtio/virtio_crypto_mgr.c @@ -1,19 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* Management for virtio crypto devices (refer to adf_dev_mgr.c) * * Copyright 2016 HUAWEI TECHNOLOGIES CO., LTD. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/mutex.h> diff --git a/drivers/crypto/vmx/Kconfig b/drivers/crypto/vmx/Kconfig index c3d524ea6998..c85fab7ef0bd 100644 --- a/drivers/crypto/vmx/Kconfig +++ b/drivers/crypto/vmx/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config CRYPTO_DEV_VMX_ENCRYPT tristate "Encryption acceleration support on P8 CPU" depends on CRYPTO_DEV_VMX diff --git a/drivers/crypto/vmx/aesp8-ppc.pl b/drivers/crypto/vmx/aesp8-ppc.pl index de78282b8f44..9c6b5c1d6a1a 100644 --- a/drivers/crypto/vmx/aesp8-ppc.pl +++ b/drivers/crypto/vmx/aesp8-ppc.pl @@ -1357,7 +1357,7 @@ Loop_ctr32_enc: addi $idx,$idx,16 bdnz Loop_ctr32_enc - vadduwm $ivec,$ivec,$one + vadduqm $ivec,$ivec,$one vmr $dat,$inptail lvx $inptail,0,$inp addi $inp,$inp,16 diff --git a/drivers/crypto/vmx/ghash.c b/drivers/crypto/vmx/ghash.c index b5a6883bb09e..14807ac2e3b9 100644 --- a/drivers/crypto/vmx/ghash.c +++ b/drivers/crypto/vmx/ghash.c @@ -1,22 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0 /** * GHASH routines supporting VMX instructions on the Power 8 * - * Copyright (C) 2015 International Business Machines Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 only. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Copyright (C) 2015, 2019 International Business Machines Inc. * * Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com> + * + * Extended by Daniel Axtens <dja@axtens.net> to replace the fallback + * mechanism. The new approach is based on arm64 code, which is: + * Copyright (C) 2014 - 2018 Linaro Ltd. <ard.biesheuvel@linaro.org> */ #include <linux/types.h> @@ -38,70 +30,25 @@ void gcm_ghash_p8(u64 Xi[2], const u128 htable[16], const u8 *in, size_t len); struct p8_ghash_ctx { + /* key used by vector asm */ u128 htable[16]; - struct crypto_shash *fallback; + /* key used by software fallback */ + be128 key; }; struct p8_ghash_desc_ctx { u64 shash[2]; u8 buffer[GHASH_DIGEST_SIZE]; int bytes; - struct shash_desc fallback_desc; }; -static int p8_ghash_init_tfm(struct crypto_tfm *tfm) -{ - const char *alg = "ghash-generic"; - struct crypto_shash *fallback; - struct crypto_shash *shash_tfm = __crypto_shash_cast(tfm); - struct p8_ghash_ctx *ctx = crypto_tfm_ctx(tfm); - - fallback = crypto_alloc_shash(alg, 0, CRYPTO_ALG_NEED_FALLBACK); - if (IS_ERR(fallback)) { - printk(KERN_ERR - "Failed to allocate transformation for '%s': %ld\n", - alg, PTR_ERR(fallback)); - return PTR_ERR(fallback); - } - - crypto_shash_set_flags(fallback, - crypto_shash_get_flags((struct crypto_shash - *) tfm)); - - /* Check if the descsize defined in the algorithm is still enough. */ - if (shash_tfm->descsize < sizeof(struct p8_ghash_desc_ctx) - + crypto_shash_descsize(fallback)) { - printk(KERN_ERR - "Desc size of the fallback implementation (%s) does not match the expected value: %lu vs %u\n", - alg, - shash_tfm->descsize - sizeof(struct p8_ghash_desc_ctx), - crypto_shash_descsize(fallback)); - return -EINVAL; - } - ctx->fallback = fallback; - - return 0; -} - -static void p8_ghash_exit_tfm(struct crypto_tfm *tfm) -{ - struct p8_ghash_ctx *ctx = crypto_tfm_ctx(tfm); - - if (ctx->fallback) { - crypto_free_shash(ctx->fallback); - ctx->fallback = NULL; - } -} - static int p8_ghash_init(struct shash_desc *desc) { - struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm)); struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc); dctx->bytes = 0; memset(dctx->shash, 0, GHASH_DIGEST_SIZE); - dctx->fallback_desc.tfm = ctx->fallback; - return crypto_shash_init(&dctx->fallback_desc); + return 0; } static int p8_ghash_setkey(struct crypto_shash *tfm, const u8 *key, @@ -119,7 +66,51 @@ static int p8_ghash_setkey(struct crypto_shash *tfm, const u8 *key, disable_kernel_vsx(); pagefault_enable(); preempt_enable(); - return crypto_shash_setkey(ctx->fallback, key, keylen); + + memcpy(&ctx->key, key, GHASH_BLOCK_SIZE); + + return 0; +} + +static inline void __ghash_block(struct p8_ghash_ctx *ctx, + struct p8_ghash_desc_ctx *dctx) +{ + if (crypto_simd_usable()) { + preempt_disable(); + pagefault_disable(); + enable_kernel_vsx(); + gcm_ghash_p8(dctx->shash, ctx->htable, + dctx->buffer, GHASH_DIGEST_SIZE); + disable_kernel_vsx(); + pagefault_enable(); + preempt_enable(); + } else { + crypto_xor((u8 *)dctx->shash, dctx->buffer, GHASH_BLOCK_SIZE); + gf128mul_lle((be128 *)dctx->shash, &ctx->key); + } +} + +static inline void __ghash_blocks(struct p8_ghash_ctx *ctx, + struct p8_ghash_desc_ctx *dctx, + const u8 *src, unsigned int srclen) +{ + if (crypto_simd_usable()) { + preempt_disable(); + pagefault_disable(); + enable_kernel_vsx(); + gcm_ghash_p8(dctx->shash, ctx->htable, + src, srclen); + disable_kernel_vsx(); + pagefault_enable(); + preempt_enable(); + } else { + while (srclen >= GHASH_BLOCK_SIZE) { + crypto_xor((u8 *)dctx->shash, src, GHASH_BLOCK_SIZE); + gf128mul_lle((be128 *)dctx->shash, &ctx->key); + srclen -= GHASH_BLOCK_SIZE; + src += GHASH_BLOCK_SIZE; + } + } } static int p8_ghash_update(struct shash_desc *desc, @@ -129,49 +120,33 @@ static int p8_ghash_update(struct shash_desc *desc, struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm)); struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc); - if (!crypto_simd_usable()) { - return crypto_shash_update(&dctx->fallback_desc, src, - srclen); - } else { - if (dctx->bytes) { - if (dctx->bytes + srclen < GHASH_DIGEST_SIZE) { - memcpy(dctx->buffer + dctx->bytes, src, - srclen); - dctx->bytes += srclen; - return 0; - } + if (dctx->bytes) { + if (dctx->bytes + srclen < GHASH_DIGEST_SIZE) { memcpy(dctx->buffer + dctx->bytes, src, - GHASH_DIGEST_SIZE - dctx->bytes); - preempt_disable(); - pagefault_disable(); - enable_kernel_vsx(); - gcm_ghash_p8(dctx->shash, ctx->htable, - dctx->buffer, GHASH_DIGEST_SIZE); - disable_kernel_vsx(); - pagefault_enable(); - preempt_enable(); - src += GHASH_DIGEST_SIZE - dctx->bytes; - srclen -= GHASH_DIGEST_SIZE - dctx->bytes; - dctx->bytes = 0; - } - len = srclen & ~(GHASH_DIGEST_SIZE - 1); - if (len) { - preempt_disable(); - pagefault_disable(); - enable_kernel_vsx(); - gcm_ghash_p8(dctx->shash, ctx->htable, src, len); - disable_kernel_vsx(); - pagefault_enable(); - preempt_enable(); - src += len; - srclen -= len; - } - if (srclen) { - memcpy(dctx->buffer, src, srclen); - dctx->bytes = srclen; + srclen); + dctx->bytes += srclen; + return 0; } - return 0; + memcpy(dctx->buffer + dctx->bytes, src, + GHASH_DIGEST_SIZE - dctx->bytes); + + __ghash_block(ctx, dctx); + + src += GHASH_DIGEST_SIZE - dctx->bytes; + srclen -= GHASH_DIGEST_SIZE - dctx->bytes; + dctx->bytes = 0; + } + len = srclen & ~(GHASH_DIGEST_SIZE - 1); + if (len) { + __ghash_blocks(ctx, dctx, src, len); + src += len; + srclen -= len; } + if (srclen) { + memcpy(dctx->buffer, src, srclen); + dctx->bytes = srclen; + } + return 0; } static int p8_ghash_final(struct shash_desc *desc, u8 *out) @@ -180,25 +155,14 @@ static int p8_ghash_final(struct shash_desc *desc, u8 *out) struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm)); struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc); - if (!crypto_simd_usable()) { - return crypto_shash_final(&dctx->fallback_desc, out); - } else { - if (dctx->bytes) { - for (i = dctx->bytes; i < GHASH_DIGEST_SIZE; i++) - dctx->buffer[i] = 0; - preempt_disable(); - pagefault_disable(); - enable_kernel_vsx(); - gcm_ghash_p8(dctx->shash, ctx->htable, - dctx->buffer, GHASH_DIGEST_SIZE); - disable_kernel_vsx(); - pagefault_enable(); - preempt_enable(); - dctx->bytes = 0; - } - memcpy(out, dctx->shash, GHASH_DIGEST_SIZE); - return 0; + if (dctx->bytes) { + for (i = dctx->bytes; i < GHASH_DIGEST_SIZE; i++) + dctx->buffer[i] = 0; + __ghash_block(ctx, dctx); + dctx->bytes = 0; } + memcpy(out, dctx->shash, GHASH_DIGEST_SIZE); + return 0; } struct shash_alg p8_ghash_alg = { @@ -213,11 +177,8 @@ struct shash_alg p8_ghash_alg = { .cra_name = "ghash", .cra_driver_name = "p8_ghash", .cra_priority = 1000, - .cra_flags = CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = GHASH_BLOCK_SIZE, .cra_ctxsize = sizeof(struct p8_ghash_ctx), .cra_module = THIS_MODULE, - .cra_init = p8_ghash_init_tfm, - .cra_exit = p8_ghash_exit_tfm, }, }; |