From patchwork Wed Feb 26 03:03:55 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qunqin Zhao X-Patchwork-Id: 868610 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 7DBC521CA1E; Wed, 26 Feb 2025 03:04:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740539079; cv=none; b=i8EsZ7G+Pet/vhZd9The8HBR1YZOIl8wvezkx0+Skk2pnya8X2patB7w5uoa0EaMn/9CkBoNikf+PQ+ZkhvP/rnmRTdAYaZBFiaUPyE5etTBwzmrfl+4+DXZc6dbjWyBlpKCdnrxJwi+Mtd4jzTRd8OLDARujIyLBIk12StAGv0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740539079; c=relaxed/simple; bh=NMqymnzSlXe0zr1ZPaYGCsst24VTW4a1ZxQ/u7WY4OU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=aVOBSw8WjFNcBaMGA24jL416Mppu2Pz78TBmGxZ4yCie785SVylY7VNbNX54zuW0L+cUeuLS3856aaTbyNISYxZif4YXo5bFBWdMyojV677rruDsl6jVdG/az4qmXuWp+Vg1UfAns+Ks+1aJs1XYfQOkexvM56bX1u6uz7ontg4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [10.40.54.90]) by gateway (Coremail) with SMTP id _____8AxHHLDhL5n5uqCAA--.28491S3; Wed, 26 Feb 2025 11:04:35 +0800 (CST) Received: from localhost.localdomain (unknown [10.40.54.90]) by front1 (Coremail) with SMTP id qMiowMCxPseyhL5nLxIpAA--.23547S5; Wed, 26 Feb 2025 11:04:33 +0800 (CST) From: Qunqin Zhao To: lee@kernel.org, herbert@gondor.apana.org.au, davem@davemloft.net, peterhuewe@gmx.de, jarkko@kernel.org Cc: linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linux-crypto@vger.kernel.org, jgg@ziepe.ca, linux-integrity@vger.kernel.org, pmenzel@molgen.mpg.de, Qunqin Zhao , Yinggang Gu Subject: [PATCH v4 3/6] crypto: loongson - add Loongson RNG driver support Date: Wed, 26 Feb 2025 11:03:55 +0800 Message-Id: <20250226030358.15924-4-zhaoqunqin@loongson.cn> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20250226030358.15924-1-zhaoqunqin@loongson.cn> References: <20250226030358.15924-1-zhaoqunqin@loongson.cn> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: qMiowMCxPseyhL5nLxIpAA--.23547S5 X-CM-SenderInfo: 52kd01pxqtx0o6or00hjvr0hdfq/ X-Coremail-Antispam: 1Uk129KBj93XoW3Jr15CFWDGFW7Cw18CryUArc_yoWxCw45pF 4Fk3yUCrWUGFsrKFWrJrWrCFW3Xasa9a43KrW7G34Y9r97AFykXayfAFyUAFyDAFW7GrWa gFZa9F4UKa1UJ3gCm3ZEXasCq-sJn29KB7ZKAUJUUUU3529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUBYb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r126r13M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Cr0_Gr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6rxl6s0DM2kKe7AKxVWUAVWUtwAS0I0E0xvYzxvE52x082IY62kv0487Mc804VCY07AIYI kI8VC2zVCFFI0UMc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUtVWr XwAv7VC2z280aVAFwI0_Gr0_Cr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI4 8JMxkF7I0En4kS14v26r126r1DMxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j 6r4UMxCIbckI1I0E14v26r126r1DMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwV AFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6xIIjxv2 0xvE14v26ryj6F1UMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw20EY4 v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Gr0_Cr1lIxAIcVC2z280aVCY1x0267AK xVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7IU8Gii3UUUUU== Loongson's Random Number Generator is found inside Loongson 6000SE. Co-developed-by: Yinggang Gu Signed-off-by: Yinggang Gu Signed-off-by: Qunqin Zhao --- v2-v4: None drivers/crypto/Kconfig | 1 + drivers/crypto/Makefile | 1 + drivers/crypto/loongson/Kconfig | 6 + drivers/crypto/loongson/Makefile | 2 + drivers/crypto/loongson/ls6000se-rng.c | 190 +++++++++++++++++++++++++ 5 files changed, 200 insertions(+) create mode 100644 drivers/crypto/loongson/Kconfig create mode 100644 drivers/crypto/loongson/Makefile create mode 100644 drivers/crypto/loongson/ls6000se-rng.c diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index 19ab145f91..567ed81b0d 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -855,5 +855,6 @@ config CRYPTO_DEV_SA2UL source "drivers/crypto/aspeed/Kconfig" source "drivers/crypto/starfive/Kconfig" +source "drivers/crypto/loongson/Kconfig" endif # CRYPTO_HW diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile index fef18ffdb1..643c3710b3 100644 --- a/drivers/crypto/Makefile +++ b/drivers/crypto/Makefile @@ -50,3 +50,4 @@ obj-y += hisilicon/ obj-$(CONFIG_CRYPTO_DEV_AMLOGIC_GXL) += amlogic/ obj-y += intel/ obj-y += starfive/ +obj-y += loongson/ diff --git a/drivers/crypto/loongson/Kconfig b/drivers/crypto/loongson/Kconfig new file mode 100644 index 0000000000..2b0b8b3241 --- /dev/null +++ b/drivers/crypto/loongson/Kconfig @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0 +config CRYPTO_DEV_LS6000SE_RNG + tristate "Support for Loongson 6000SE RNG Driver" + depends on MFD_LS6000SE + help + Support for Loongson 6000SE RNG Driver. diff --git a/drivers/crypto/loongson/Makefile b/drivers/crypto/loongson/Makefile new file mode 100644 index 0000000000..17b0fa89e9 --- /dev/null +++ b/drivers/crypto/loongson/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_CRYPTO_DEV_LS6000SE_RNG) += ls6000se-rng.o diff --git a/drivers/crypto/loongson/ls6000se-rng.c b/drivers/crypto/loongson/ls6000se-rng.c new file mode 100644 index 0000000000..b366475782 --- /dev/null +++ b/drivers/crypto/loongson/ls6000se-rng.c @@ -0,0 +1,190 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2019 HiSilicon Limited. */ +/* Copyright (c) 2025 Loongson Technology Corporation Limited. */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct lsrng_list { + struct mutex lock; + struct list_head list; + int is_init; +}; + +struct lsrng { + bool is_used; + struct lsse_ch *se_ch; + struct list_head list; + struct completion rng_completion; +}; + +struct lsrng_ctx { + struct lsrng *rng; +}; + +struct rng_msg { + u32 cmd; + union { + u32 len; + u32 ret; + } u; + u32 resved; + u32 out_off; + u32 pad[4]; +}; + +static atomic_t rng_active_devs; +static struct lsrng_list rng_devices; + +static void lsrng_complete(struct lsse_ch *ch) +{ + struct lsrng *rng = (struct lsrng *)ch->priv; + + complete(&rng->rng_completion); +} + +static int lsrng_generate(struct crypto_rng *tfm, const u8 *src, + unsigned int slen, u8 *dstn, unsigned int dlen) +{ + struct lsrng_ctx *ctx = crypto_rng_ctx(tfm); + struct lsrng *rng = ctx->rng; + struct rng_msg *msg; + int err, len; + + do { + len = min(dlen, PAGE_SIZE); + msg = rng->se_ch->smsg; + msg->u.len = len; + err = se_send_ch_requeset(rng->se_ch); + if (err) + return err; + + wait_for_completion_interruptible(&rng->rng_completion); + + msg = rng->se_ch->rmsg; + if (msg->u.ret) + return -EFAULT; + + memcpy(dstn, rng->se_ch->data_buffer, len); + dlen -= len; + dstn += len; + } while (dlen > 0); + + return 0; +} + +static int lsrng_init(struct crypto_tfm *tfm) +{ + struct lsrng_ctx *ctx = crypto_tfm_ctx(tfm); + struct lsrng *rng; + int ret = -EBUSY; + + mutex_lock(&rng_devices.lock); + list_for_each_entry(rng, &rng_devices.list, list) { + if (!rng->is_used) { + rng->is_used = true; + ctx->rng = rng; + ret = 0; + break; + } + } + mutex_unlock(&rng_devices.lock); + + return ret; +} + +static void lsrng_exit(struct crypto_tfm *tfm) +{ + struct lsrng_ctx *ctx = crypto_tfm_ctx(tfm); + + mutex_lock(&rng_devices.lock); + ctx->rng->is_used = false; + mutex_unlock(&rng_devices.lock); +} + +static int no_seed(struct crypto_rng *tfm, const u8 *seed, unsigned int slen) +{ + return 0; +} + +static struct rng_alg lsrng_alg = { + .generate = lsrng_generate, + .seed = no_seed, + .base = { + .cra_name = "stdrng", + .cra_driver_name = "loongson_stdrng", + .cra_priority = 300, + .cra_ctxsize = sizeof(struct lsrng_ctx), + .cra_module = THIS_MODULE, + .cra_init = lsrng_init, + .cra_exit = lsrng_exit, + }, +}; + +static void lsrng_add_to_list(struct lsrng *rng) +{ + mutex_lock(&rng_devices.lock); + list_add_tail(&rng->list, &rng_devices.list); + mutex_unlock(&rng_devices.lock); +} + +static int lsrng_probe(struct platform_device *pdev) +{ + struct rng_msg *msg; + struct lsrng *rng; + int ret; + + rng = devm_kzalloc(&pdev->dev, sizeof(*rng), GFP_KERNEL); + if (!rng) + return -ENOMEM; + + init_completion(&rng->rng_completion); + rng->se_ch = se_init_ch(pdev->dev.parent, SE_CH_RNG, PAGE_SIZE, + sizeof(struct rng_msg) * 2, rng, lsrng_complete); + if (!rng->se_ch) + return -ENODEV; + msg = rng->se_ch->smsg; + msg->cmd = SE_CMD_RNG; + msg->out_off = rng->se_ch->off; + + if (!rng_devices.is_init) { + ret = crypto_register_rng(&lsrng_alg); + if (ret) { + dev_err(&pdev->dev, "failed to register crypto(%d)\n", ret); + return ret; + } + INIT_LIST_HEAD(&rng_devices.list); + mutex_init(&rng_devices.lock); + rng_devices.is_init = true; + } + + lsrng_add_to_list(rng); + atomic_inc(&rng_active_devs); + + return 0; +} + +static struct platform_driver lsrng_driver = { + .probe = lsrng_probe, + .driver = { + .name = "ls6000se-rng", + }, +}; +module_platform_driver(lsrng_driver); + +MODULE_ALIAS("platform:ls6000se-rng"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Yinggang Gu "); +MODULE_AUTHOR("Qunqin Zhao "); +MODULE_DESCRIPTION("Loongson random number generator driver"); From patchwork Wed Feb 26 03:03:56 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qunqin Zhao X-Patchwork-Id: 868609 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 02E9A21CC79; Wed, 26 Feb 2025 03:04:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740539098; cv=none; b=mrrTAGsyarxKZwtSQZd9fP+o7+IrNQwQQePNrVamcm/0k/2YXk6Lbu9Dzo7Dk5EWcqfK+q0nEFPQKHke3UTq4scPcv7Crf1/QjCqhUvj2HHUxmvQswheSYH9+pPNqp75pspXistns/FVFegUugX49NNH3ClqAmzdm9GGA8DAruE= ARC-Message-Signature: i=1; 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Wed, 26 Feb 2025 11:04:36 +0800 (CST) From: Qunqin Zhao To: lee@kernel.org, herbert@gondor.apana.org.au, davem@davemloft.net, peterhuewe@gmx.de, jarkko@kernel.org Cc: linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linux-crypto@vger.kernel.org, jgg@ziepe.ca, linux-integrity@vger.kernel.org, pmenzel@molgen.mpg.de, Qunqin Zhao Subject: [PATCH v4 4/6] MAINTAINERS: Add entry for Loongson RNG driver Date: Wed, 26 Feb 2025 11:03:56 +0800 Message-Id: <20250226030358.15924-5-zhaoqunqin@loongson.cn> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20250226030358.15924-1-zhaoqunqin@loongson.cn> References: <20250226030358.15924-1-zhaoqunqin@loongson.cn> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: qMiowMCxPseyhL5nLxIpAA--.23547S6 X-CM-SenderInfo: 52kd01pxqtx0o6or00hjvr0hdfq/ X-Coremail-Antispam: 1Uk129KBj9xXoW7Xr1UZryUGrWxZFyxJr15Jrc_yoW3KFb_J3 y7KayxXF4kJFn2yayxZFn7Aryaqw4xX3Wfu3Z7tw4rZa4qyasxAryDAFy7Gw15CrWYgF43 XayxGr97ur17ZosvyTuYvTs0mTUanT9S1TB71UUUUjDqnTZGkaVYY2UrUUUUj1kv1TuYvT s0mT0YCTnIWjqI5I8CrVACY4xI64kE6c02F40Ex7xfYxn0WfASr-VFAUDa7-sFnT9fnUUI cSsGvfJTRUUUbfAYFVCjjxCrM7AC8VAFwI0_Jr0_Gr1l1xkIjI8I6I8E6xAIw20EY4v20x vaj40_Wr0E3s1l1IIY67AEw4v_Jrv_JF1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxS w2x7M28EF7xvwVC0I7IYx2IY67AKxVW7JVWDJwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxV WxJVW8Jr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_ GcCE3s1ln4kS14v26r126r1DM2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12xvs2 x26I8E6xACxx1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26rWY6Fy7 McIj6I8E87Iv67AKxVW8JVWxJwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr4 1lc7CjxVAaw2AFwI0_JF0_Jw1l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_ Gr1l4IxYO2xFxVAFwI0_JF0_Jw1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67 AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8I cVAFwI0_Xr0_Ar1lIxAIcVC0I7IYx2IY6xkF7I0E14v26F4j6r4UJwCI42IY6xAIw20EY4 v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Gr0_Cr1lIxAIcVC2z280aVCY1x0267AK xVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7IU0_WrPUUUUU== This patch adds an entry for Loongson RNG driver in the list of maintainers. Signed-off-by: Qunqin Zhao --- v4: Changed tile to "Add entry for ...". Lowcased "Maintainers" in commit message. MAINTAINERS | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 1b741b20f8..3f04f43ffe 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13602,6 +13602,12 @@ S: Maintained F: Documentation/devicetree/bindings/gpio/loongson,ls-gpio.yaml F: drivers/gpio/gpio-loongson-64bit.c +LOONGSON CRYPTO DRIVER +M: Qunqin Zhao +L: linux-crypto@vger.kernel.org +S: Maintained +F: drivers/crypto/loongson/ + LOONGSON-2 APB DMA DRIVER M: Binbin Zhou L: dmaengine@vger.kernel.org From patchwork Wed Feb 26 03:05:49 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qunqin Zhao X-Patchwork-Id: 869083 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 920D418801A; Wed, 26 Feb 2025 03:06:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740539196; cv=none; b=pfqta2Y+KLxltXuzOv3jDPQQK6blYWLb4LR9ojsYkYIhpR5CTLIkiMckxgBB1YMo2YHxpNoHm8Ayp/EPrW+ujJS2kMAKs6gZA9+p3ZAlQN+qSXTPMImRZQRTHL+C+5P5iFQC3Nej9P8PoyjQJyAz1e5H2FKpypuVBqrFQP4Yjtw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740539196; c=relaxed/simple; bh=CvQdaps0lzjfY5LYvPCYQCwqY3/4JGg+X1TYkOjJ+FA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=LYEiD1PlO093GhBF5nhbHeH/Bav5fC8RoQEoo/ZGXWybPSPdIv3FvG7BcS7y7ee666GY1YnNtex7y0sSpZV05jJSp6tt1BfxiC8qme9brLw5yy0wCy4iE9hMeLEaDTl6hDoNjyn7PS0aIUw4WauA9fl120llpMYDif2t/RjQ7wg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [10.40.54.90]) by gateway (Coremail) with SMTP id _____8Bx63E4hb5neuuCAA--.27942S3; Wed, 26 Feb 2025 11:06:32 +0800 (CST) Received: from localhost.localdomain (unknown [10.40.54.90]) by front1 (Coremail) with SMTP id qMiowMDxPcU3hb5n7BIpAA--.19667S2; Wed, 26 Feb 2025 11:06:31 +0800 (CST) From: Qunqin Zhao To: lee@kernel.org, herbert@gondor.apana.org.au, davem@davemloft.net, peterhuewe@gmx.de, jarkko@kernel.org Cc: linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linux-crypto@vger.kernel.org, jgg@ziepe.ca, linux-integrity@vger.kernel.org, pmenzel@molgen.mpg.de, Qunqin Zhao , Yinggang Gu Subject: [PATCH v4 5/6] tpm: Add a driver for Loongson TPM device Date: Wed, 26 Feb 2025 11:05:49 +0800 Message-Id: <20250226030550.15973-1-zhaoqunqin@loongson.cn> X-Mailer: git-send-email 2.20.1 Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: qMiowMDxPcU3hb5n7BIpAA--.19667S2 X-CM-SenderInfo: 52kd01pxqtx0o6or00hjvr0hdfq/ X-Coremail-Antispam: 1Uk129KBj93XoWxAr4Dtw1xXw1ktFy5tF1rKrX_yoWrKw1rpF 45Ca4akr45JFWUt39xJF1DuF9xJ34kXFWUKrW7Jas8ur90yas8WFsrtFyUJ3W3ZrWkGrya qFZa9rW3WF15AwcCm3ZEXasCq-sJn29KB7ZKAUJUUUU3529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUBFb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Cr0_Gr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6rxl6s0DM2kKe7AKxVWUAVWUtwAS0I0E0xvYzxvE52x082IY62kv0487Mc804VCY07AIYI kI8VC2zVCFFI0UMc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWrXVW3 AwAv7VC2z280aVAFwI0_Gr0_Cr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI4 8JMxkF7I0En4kS14v26r126r1DMxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j 6r4UMxCIbckI1I0E14v26r126r1DMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwV AFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6xIIjxv2 0xvE14v26F1j6w1UMIIF0xvE2Ix0cI8IcVCY1x0267AKxVWxJVW8Jr1lIxAIcVCF04k26c xKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r4j6F4UMIIF0xvEx4A2jsIEc7CjxVAF wI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07j6rWOUUUUU= Loongson security engine supports random number generation, hash, symmetric encryption and asymmetric encryption. Based on these encryption functions, TPM2 have been implemented in the Loongson security engine firmware. This driver is responsible for copying data into the memory visible to the firmware and receiving data from the firmware. Co-developed-by: Yinggang Gu Signed-off-by: Yinggang Gu Signed-off-by: Qunqin Zhao --- v4: Prefix all with tpm_lsse instead of tpm. Removed MODULE_AUTHOR fields. v3: Added reminder about Loongson security engine to git log. drivers/char/tpm/Kconfig | 9 ++++ drivers/char/tpm/Makefile | 1 + drivers/char/tpm/tpm_lsse.c | 103 ++++++++++++++++++++++++++++++++++++ 3 files changed, 113 insertions(+) create mode 100644 drivers/char/tpm/tpm_lsse.c diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig index 0fc9a510e0..56d0417065 100644 --- a/drivers/char/tpm/Kconfig +++ b/drivers/char/tpm/Kconfig @@ -225,5 +225,14 @@ config TCG_FTPM_TEE help This driver proxies for firmware TPM running in TEE. +config TCG_LSSE + tristate "Loongson TPM Interface" + depends on MFD_LS6000SE + help + If you want to make Loongson TPM support available, say Yes and + it will be accessible from within Linux. To compile this + driver as a module, choose M here; the module will be called + tpm_lsse. + source "drivers/char/tpm/st33zp24/Kconfig" endif # TCG_TPM diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile index 9bb142c752..bf2280352d 100644 --- a/drivers/char/tpm/Makefile +++ b/drivers/char/tpm/Makefile @@ -44,3 +44,4 @@ obj-$(CONFIG_TCG_XEN) += xen-tpmfront.o obj-$(CONFIG_TCG_CRB) += tpm_crb.o obj-$(CONFIG_TCG_VTPM_PROXY) += tpm_vtpm_proxy.o obj-$(CONFIG_TCG_FTPM_TEE) += tpm_ftpm_tee.o +obj-$(CONFIG_TCG_LSSE) += tpm_lsse.o diff --git a/drivers/char/tpm/tpm_lsse.c b/drivers/char/tpm/tpm_lsse.c new file mode 100644 index 0000000000..b476309c97 --- /dev/null +++ b/drivers/char/tpm/tpm_lsse.c @@ -0,0 +1,103 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2025 Loongson Technology Corporation Limited. */ + +#include +#include +#include +#include + +#include "tpm.h" + +struct tpm_lsse_msg { + u32 cmd; + u32 data_off; + u32 data_len; + u32 info[5]; +}; + +struct tpm_lsse_dev { + struct lsse_ch *se_ch; + struct completion tpm_lsse_completion; +}; + +static void tpm_lsse_complete(struct lsse_ch *ch) +{ + struct tpm_lsse_dev *td = ch->priv; + + complete(&td->tpm_lsse_completion); +} + +static int tpm_lsse_recv(struct tpm_chip *chip, u8 *buf, size_t count) +{ + struct tpm_lsse_dev *td = dev_get_drvdata(&chip->dev); + struct tpm_lsse_msg *rmsg; + int sig; + + sig = wait_for_completion_interruptible(&td->tpm_lsse_completion); + if (sig) + return sig; + + rmsg = td->se_ch->rmsg; + memcpy(buf, td->se_ch->data_buffer, rmsg->data_len); + + return rmsg->data_len; +} + +static int tpm_lsse_send(struct tpm_chip *chip, u8 *buf, size_t count) +{ + struct tpm_lsse_dev *td = dev_get_drvdata(&chip->dev); + struct tpm_lsse_msg *smsg = td->se_ch->smsg; + + memcpy(td->se_ch->data_buffer, buf, count); + smsg->data_len = count; + + return se_send_ch_requeset(td->se_ch); +} + +static const struct tpm_class_ops tpm_lsse_ops = { + .flags = TPM_OPS_AUTO_STARTUP, + .recv = tpm_lsse_recv, + .send = tpm_lsse_send, +}; + +static int tpm_lsse_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct tpm_lsse_msg *smsg; + struct tpm_lsse_dev *td; + struct tpm_chip *chip; + + td = devm_kzalloc(dev, sizeof(struct tpm_lsse_dev), GFP_KERNEL); + if (!td) + return -ENOMEM; + + init_completion(&td->tpm_lsse_completion); + td->se_ch = se_init_ch(dev->parent, SE_CH_TPM, PAGE_SIZE, + 2 * sizeof(struct tpm_lsse_msg), td, + tpm_lsse_complete); + if (!td->se_ch) + return -ENODEV; + smsg = td->se_ch->smsg; + smsg->cmd = SE_CMD_TPM; + smsg->data_off = td->se_ch->off; + + chip = tpmm_chip_alloc(dev, &tpm_lsse_ops); + if (IS_ERR(chip)) + return PTR_ERR(chip); + chip->flags = TPM_CHIP_FLAG_TPM2 | TPM_CHIP_FLAG_IRQ; + dev_set_drvdata(&chip->dev, td); + + return tpm_chip_register(chip); +} + +static struct platform_driver tpm_lsse_driver = { + .probe = tpm_lsse_probe, + .driver = { + .name = "ls6000se-tpm", + }, +}; +module_platform_driver(tpm_lsse_driver); + +MODULE_ALIAS("platform:ls6000se-tpm"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Loongson TPM driver"); From patchwork Wed Feb 26 03:05:50 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qunqin Zhao X-Patchwork-Id: 868608 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 3A20B18801A; Wed, 26 Feb 2025 03:06:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740539214; cv=none; b=nrdFAcrUvYs2UwIvGDtZMs/7S8WRDoXqkwzd3BVJ0OqMQ/ZnzZS5Y7AipG+M3B4Qx+LEavhs5SnKpY9/QCvGX+ygJthSPW96VPvID0shuucL1nHlYoUgw/DnWrVp7uAm4p/Vf6wdxFf5wdkxh0e3BLx/ug6CVGFhbwKQLue8cUY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740539214; c=relaxed/simple; bh=gNIo3QHnwp30TXL+iprEpvUn4IGOec5Dm/ZsPwUVeXc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=LjD/rHY5UTeuUa2s3WyvWNhb4nOOjyIakwAsYNIRPJcZ/u1v6nZDY7qOp1rTGBhJ1zH3LEW4AePyqRfNZaJxyBh4Es/vFAqPt7Wp2vri8/tu3phI6fRk+1mr9Uhs14bWI7vh3hQwiN9o62wbOiFVx1aC86Uw0QAJzSKFpXeKzVI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [10.40.54.90]) by gateway (Coremail) with SMTP id _____8AxaeBGhb5nm+uCAA--.29587S3; Wed, 26 Feb 2025 11:06:46 +0800 (CST) Received: from localhost.localdomain (unknown [10.40.54.90]) by front1 (Coremail) with SMTP id qMiowMDxPcU3hb5n7BIpAA--.19667S3; Wed, 26 Feb 2025 11:06:32 +0800 (CST) From: Qunqin Zhao To: lee@kernel.org, herbert@gondor.apana.org.au, davem@davemloft.net, peterhuewe@gmx.de, jarkko@kernel.org Cc: linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linux-crypto@vger.kernel.org, jgg@ziepe.ca, linux-integrity@vger.kernel.org, pmenzel@molgen.mpg.de, Qunqin Zhao Subject: [PATCH v4 6/6] MAINTAINERS: Add tpm_lsse.c to LOONGSON CRYPTO DRIVER entry Date: Wed, 26 Feb 2025 11:05:50 +0800 Message-Id: <20250226030550.15973-2-zhaoqunqin@loongson.cn> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20250226030550.15973-1-zhaoqunqin@loongson.cn> References: <20250226030550.15973-1-zhaoqunqin@loongson.cn> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: qMiowMDxPcU3hb5n7BIpAA--.19667S3 X-CM-SenderInfo: 52kd01pxqtx0o6or00hjvr0hdfq/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29K BjDU0xBIdaVrnRJUUUP0b4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26c xKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vE j48ve4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xIIjxv20xvEc7CjxV AFwI0_Cr0_Gr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E 14v26rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12xvs2x26I8E6xACxx 1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26rWY6Fy7McIj6I8E87Iv 67AKxVWxJVW8Jr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI48JMxAIw28Icx kI7VAKI48JMxAqzxv262kKe7AKxVWUAVWUtwCF54CYxVCY1x0262kKe7AKxVWUAVWUtwCF x2IqxVCFs4IE7xkEbVWUJVW8JwCFI7km07C267AKxVWUAVWUtwC20s026c02F40E14v26r 1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij 64vIr41lIxAIcVC0I7IYx2IY67AKxVW7JVWDJwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Cr 0_Gr1UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWxJVW8Jr1l IxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7IU0beOPUUUU U== Changes to Loongson TPM driver would be best reviewed by the Loongson crypto driver maintainers. Signed-off-by: Qunqin Zhao --- v4: None MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 3f04f43ffe..75760e6ec2 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13606,6 +13606,7 @@ LOONGSON CRYPTO DRIVER M: Qunqin Zhao L: linux-crypto@vger.kernel.org S: Maintained +F: drivers/char/tpm/tpm_lsse.c F: drivers/crypto/loongson/ LOONGSON-2 APB DMA DRIVER