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Fri, 08 Nov 2019 05:33:33 -0800 (PST) Received: from localhost.localdomain ([240e:362:48f:8f00:79bd:a8a7:1834:2d1a]) by smtp.gmail.com with ESMTPSA id 12sm7626483pjm.11.2019.11.08.05.33.17 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 08 Nov 2019 05:33:33 -0800 (PST) From: Zhangfei Gao To: Greg Kroah-Hartman , Arnd Bergmann , Herbert Xu , jonathan.cameron@huawei.com, grant.likely@arm.com, jean-philippe , Jerome Glisse , ilias.apalodimas@linaro.org, francois.ozog@linaro.org, kenneth-lee-2012@foxmail.com, Wangzhou , "haojian . zhuang" , guodong.xu@linaro.org Cc: linux-accelerators@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, iommu@lists.linux-foundation.org, Zhangfei Gao Subject: [RESEND PATCH v8 3/3] crypto: hisilicon - register zip engine to uacce Date: Fri, 8 Nov 2019 21:31:44 +0800 Message-Id: <1573219904-17594-4-git-send-email-zhangfei.gao@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1573219904-17594-1-git-send-email-zhangfei.gao@linaro.org> References: <1573219904-17594-1-git-send-email-zhangfei.gao@linaro.org> Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Register qm to uacce framework for user crypto driver Signed-off-by: Zhangfei Gao Signed-off-by: Zhou Wang --- drivers/crypto/hisilicon/qm.c | 256 ++++++++++++++++++++++++++++++-- drivers/crypto/hisilicon/qm.h | 11 ++ drivers/crypto/hisilicon/zip/zip_main.c | 38 ++--- include/uapi/misc/uacce/hisi_qm.h | 23 +++ 4 files changed, 289 insertions(+), 39 deletions(-) create mode 100644 include/uapi/misc/uacce/hisi_qm.h -- 2.7.4 diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c index a8ed6990..bf8442d 100644 --- a/drivers/crypto/hisilicon/qm.c +++ b/drivers/crypto/hisilicon/qm.c @@ -9,6 +9,9 @@ #include #include #include +#include +#include +#include #include "qm.h" /* eq/aeq irq enable */ @@ -465,17 +468,22 @@ static void qm_cq_head_update(struct hisi_qp *qp) static void qm_poll_qp(struct hisi_qp *qp, struct hisi_qm *qm) { - struct qm_cqe *cqe = qp->cqe + qp->qp_status.cq_head; - - if (qp->req_cb) { - while (QM_CQE_PHASE(cqe) == qp->qp_status.cqc_phase) { - dma_rmb(); - qp->req_cb(qp, qp->sqe + qm->sqe_size * cqe->sq_head); - qm_cq_head_update(qp); - cqe = qp->cqe + qp->qp_status.cq_head; - qm_db(qm, qp->qp_id, QM_DOORBELL_CMD_CQ, - qp->qp_status.cq_head, 0); - atomic_dec(&qp->qp_status.used); + struct qm_cqe *cqe; + + if (qp->event_cb) { + qp->event_cb(qp); + } else { + cqe = qp->cqe + qp->qp_status.cq_head; + + if (qp->req_cb) { + while (QM_CQE_PHASE(cqe) == qp->qp_status.cqc_phase) { + dma_rmb(); + qp->req_cb(qp, qp->sqe + qm->sqe_size * + cqe->sq_head); + qm_cq_head_update(qp); + cqe = qp->cqe + qp->qp_status.cq_head; + atomic_dec(&qp->qp_status.used); + } } /* set c_flag */ @@ -1271,7 +1279,7 @@ static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, int pasid) * @qp: The qp we want to start to run. * @arg: Accelerator specific argument. * - * After this function, qp can receive request from user. Return qp_id if + * After this function, qp can receive request from user. Return 0 if * successful, Return -EBUSY if failed. */ int hisi_qm_start_qp(struct hisi_qp *qp, unsigned long arg) @@ -1316,7 +1324,7 @@ int hisi_qm_start_qp(struct hisi_qp *qp, unsigned long arg) dev_dbg(dev, "queue %d started\n", qp_id); - return qp_id; + return 0; } EXPORT_SYMBOL_GPL(hisi_qm_start_qp); @@ -1397,6 +1405,213 @@ static void hisi_qm_cache_wb(struct hisi_qm *qm) } } +static void qm_qp_event_notifier(struct hisi_qp *qp) +{ + wake_up_interruptible(&qp->uacce_q->wait); +} + +static int hisi_qm_get_available_instances(struct uacce_device *uacce) +{ + int i, ret; + struct hisi_qm *qm = uacce->priv; + + read_lock(&qm->qps_lock); + for (i = 0, ret = 0; i < qm->qp_num; i++) + if (!qm->qp_array[i]) + ret++; + read_unlock(&qm->qps_lock); + + return ret; +} + +static int hisi_qm_uacce_get_queue(struct uacce_device *uacce, + unsigned long arg, + struct uacce_queue *q) +{ + struct hisi_qm *qm = uacce->priv; + struct hisi_qp *qp; + u8 alg_type = 0; + + qp = hisi_qm_create_qp(qm, alg_type); + if (IS_ERR(qp)) + return PTR_ERR(qp); + + q->priv = qp; + q->uacce = uacce; + qp->uacce_q = q; + qp->event_cb = qm_qp_event_notifier; + qp->pasid = arg; + + return 0; +} + +static void hisi_qm_uacce_put_queue(struct uacce_queue *q) +{ + struct hisi_qp *qp = q->priv; + + hisi_qm_cache_wb(qp->qm); + hisi_qm_release_qp(qp); +} + +/* map sq/cq/doorbell to user space */ +static int hisi_qm_uacce_mmap(struct uacce_queue *q, + struct vm_area_struct *vma, + struct uacce_qfile_region *qfr) +{ + struct hisi_qp *qp = q->priv; + struct hisi_qm *qm = qp->qm; + size_t sz = vma->vm_end - vma->vm_start; + struct pci_dev *pdev = qm->pdev; + struct device *dev = &pdev->dev; + unsigned long vm_pgoff; + int ret; + + switch (qfr->type) { + case UACCE_QFRT_MMIO: + if (qm->ver == QM_HW_V2) { + if (sz > PAGE_SIZE * (QM_DOORBELL_PAGE_NR + + QM_DOORBELL_SQ_CQ_BASE_V2 / PAGE_SIZE)) + return -EINVAL; + } else { + if (sz > PAGE_SIZE * QM_DOORBELL_PAGE_NR) + return -EINVAL; + } + + vma->vm_flags |= VM_IO; + + return remap_pfn_range(vma, vma->vm_start, + qm->phys_base >> PAGE_SHIFT, + sz, pgprot_noncached(vma->vm_page_prot)); + case UACCE_QFRT_DUS: + if (sz != qp->qdma.size) + return -EINVAL; + + /* + * dma_mmap_coherent() requires vm_pgoff as 0 + * restore vm_pfoff to initial value for mmap() + */ + vm_pgoff = vma->vm_pgoff; + vma->vm_pgoff = 0; + ret = dma_mmap_coherent(dev, vma, qp->qdma.va, + qp->qdma.dma, sz); + vma->vm_pgoff = vm_pgoff; + return ret; + + default: + return -EINVAL; + } +} + +static int hisi_qm_uacce_start_queue(struct uacce_queue *q) +{ + struct hisi_qp *qp = q->priv; + + return hisi_qm_start_qp(qp, qp->pasid); +} + +static void hisi_qm_uacce_stop_queue(struct uacce_queue *q) +{ + hisi_qm_stop_qp(q->priv); +} + +static int qm_set_sqctype(struct uacce_queue *q, u16 type) +{ + struct hisi_qm *qm = q->uacce->priv; + struct hisi_qp *qp = q->priv; + + write_lock(&qm->qps_lock); + qp->alg_type = type; + write_unlock(&qm->qps_lock); + + return 0; +} + +static long hisi_qm_uacce_ioctl(struct uacce_queue *q, unsigned int cmd, + unsigned long arg) +{ + struct hisi_qp *qp = q->priv; + struct hisi_qp_ctx qp_ctx; + + if (cmd == UACCE_CMD_QM_SET_QP_CTX) { + if (copy_from_user(&qp_ctx, (void __user *)arg, + sizeof(struct hisi_qp_ctx))) + return -EFAULT; + + if (qp_ctx.qc_type != 0 && qp_ctx.qc_type != 1) + return -EINVAL; + + qm_set_sqctype(q, qp_ctx.qc_type); + qp_ctx.id = qp->qp_id; + + if (copy_to_user((void __user *)arg, &qp_ctx, + sizeof(struct hisi_qp_ctx))) + return -EFAULT; + } else { + return -EINVAL; + } + + return 0; +} + +static const struct uacce_ops uacce_qm_ops = { + .get_available_instances = hisi_qm_get_available_instances, + .get_queue = hisi_qm_uacce_get_queue, + .put_queue = hisi_qm_uacce_put_queue, + .start_queue = hisi_qm_uacce_start_queue, + .stop_queue = hisi_qm_uacce_stop_queue, + .mmap = hisi_qm_uacce_mmap, + .ioctl = hisi_qm_uacce_ioctl, +}; + +static int qm_register_uacce(struct hisi_qm *qm) +{ + struct pci_dev *pdev = qm->pdev; + struct uacce_device *uacce; + unsigned long mmio_page_nr; + unsigned long dus_page_nr; + struct uacce_interface interface = { + .flags = UACCE_DEV_SVA, + .ops = &uacce_qm_ops, + }; + + strncpy(interface.name, pdev->driver->name, sizeof(interface.name)); + + uacce = uacce_register(&pdev->dev, &interface); + if (IS_ERR(uacce)) + return PTR_ERR(uacce); + + if (uacce->flags & UACCE_DEV_SVA) { + qm->use_sva = true; + } else { + /* only consider sva case */ + uacce_unregister(uacce); + return -EINVAL; + } + + uacce->is_vf = pdev->is_virtfn; + uacce->priv = qm; + uacce->algs = qm->algs; + + if (qm->ver == QM_HW_V1) { + mmio_page_nr = QM_DOORBELL_PAGE_NR; + uacce->api_ver = HISI_QM_API_VER_BASE; + } else { + mmio_page_nr = QM_DOORBELL_PAGE_NR + + QM_DOORBELL_SQ_CQ_BASE_V2 / PAGE_SIZE; + uacce->api_ver = HISI_QM_API_VER2_BASE; + } + + dus_page_nr = (PAGE_SIZE - 1 + qm->sqe_size * QM_Q_DEPTH + + sizeof(struct qm_cqe) * QM_Q_DEPTH) >> PAGE_SHIFT; + + uacce->qf_pg_num[UACCE_QFRT_MMIO] = mmio_page_nr; + uacce->qf_pg_num[UACCE_QFRT_DUS] = dus_page_nr; + + qm->uacce = uacce; + + return 0; +} + /** * hisi_qm_init() - Initialize configures about qm. * @qm: The qm needing init. @@ -1421,10 +1636,14 @@ int hisi_qm_init(struct hisi_qm *qm) return -EINVAL; } + ret = qm_register_uacce(qm); + if (ret < 0) + dev_warn(&pdev->dev, "fail to register uacce (%d)\n", ret); + ret = pci_enable_device_mem(pdev); if (ret < 0) { dev_err(&pdev->dev, "Failed to enable device mem!\n"); - return ret; + goto err_unregister_uacce; } ret = pci_request_mem_regions(pdev, qm->dev_name); @@ -1433,8 +1652,9 @@ int hisi_qm_init(struct hisi_qm *qm) goto err_disable_pcidev; } - qm->io_base = ioremap(pci_resource_start(pdev, PCI_BAR_2), - pci_resource_len(qm->pdev, PCI_BAR_2)); + qm->phys_base = pci_resource_start(pdev, PCI_BAR_2); + qm->phys_size = pci_resource_len(qm->pdev, PCI_BAR_2); + qm->io_base = ioremap(qm->phys_base, qm->phys_size); if (!qm->io_base) { ret = -EIO; goto err_release_mem_regions; @@ -1476,6 +1696,8 @@ int hisi_qm_init(struct hisi_qm *qm) pci_release_mem_regions(pdev); err_disable_pcidev: pci_disable_device(pdev); +err_unregister_uacce: + uacce_unregister(qm->uacce); return ret; } @@ -1504,6 +1726,8 @@ void hisi_qm_uninit(struct hisi_qm *qm) iounmap(qm->io_base); pci_release_mem_regions(pdev); pci_disable_device(pdev); + + uacce_unregister(qm->uacce); } EXPORT_SYMBOL_GPL(hisi_qm_uninit); diff --git a/drivers/crypto/hisilicon/qm.h b/drivers/crypto/hisilicon/qm.h index 103e2fd..16a176f 100644 --- a/drivers/crypto/hisilicon/qm.h +++ b/drivers/crypto/hisilicon/qm.h @@ -77,6 +77,9 @@ #define HISI_ACC_SGL_SGE_NR_MAX 255 +/* page number for queue file region */ +#define QM_DOORBELL_PAGE_NR 1 + enum qp_state { QP_STOP, }; @@ -161,7 +164,12 @@ struct hisi_qm { u32 error_mask; u32 msi_mask; + const char *algs; bool use_dma_api; + bool use_sva; + resource_size_t phys_base; + resource_size_t phys_size; + struct uacce_device *uacce; }; struct hisi_qp_status { @@ -191,10 +199,13 @@ struct hisi_qp { struct hisi_qp_ops *hw_ops; void *qp_ctx; void (*req_cb)(struct hisi_qp *qp, void *data); + void (*event_cb)(struct hisi_qp *qp); struct work_struct work; struct workqueue_struct *wq; struct hisi_qm *qm; + u16 pasid; + struct uacce_queue *uacce_q; }; int hisi_qm_init(struct hisi_qm *qm); diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c index 1b2ee96..1c91587 100644 --- a/drivers/crypto/hisilicon/zip/zip_main.c +++ b/drivers/crypto/hisilicon/zip/zip_main.c @@ -316,8 +316,14 @@ static void hisi_zip_set_user_domain_and_cache(struct hisi_zip *hisi_zip) writel(AXUSER_BASE, base + HZIP_BD_RUSER_32_63); writel(AXUSER_BASE, base + HZIP_SGL_RUSER_32_63); writel(AXUSER_BASE, base + HZIP_BD_WUSER_32_63); - writel(AXUSER_BASE, base + HZIP_DATA_RUSER_32_63); - writel(AXUSER_BASE, base + HZIP_DATA_WUSER_32_63); + + if (hisi_zip->qm.use_sva) { + writel(AXUSER_BASE | AXUSER_SSV, base + HZIP_DATA_RUSER_32_63); + writel(AXUSER_BASE | AXUSER_SSV, base + HZIP_DATA_WUSER_32_63); + } else { + writel(AXUSER_BASE, base + HZIP_DATA_RUSER_32_63); + writel(AXUSER_BASE, base + HZIP_DATA_WUSER_32_63); + } /* let's open all compression/decompression cores */ writel(DECOMP_CHECK_ENABLE | ALL_COMP_DECOMP_EN, @@ -672,23 +678,12 @@ static int hisi_zip_probe(struct pci_dev *pdev, const struct pci_device_id *id) qm->pdev = pdev; qm->ver = rev_id; + qm->use_dma_api = true; + qm->algs = "zlib\ngzip\n"; qm->sqe_size = HZIP_SQE_SIZE; qm->dev_name = hisi_zip_name; qm->fun_type = (pdev->device == PCI_DEVICE_ID_ZIP_PF) ? QM_HW_PF : QM_HW_VF; - switch (uacce_mode) { - case 0: - qm->use_dma_api = true; - break; - case 1: - qm->use_dma_api = false; - break; - case 2: - qm->use_dma_api = true; - break; - default: - return -EINVAL; - } ret = hisi_qm_init(qm); if (ret) { @@ -976,12 +971,10 @@ static int __init hisi_zip_init(void) goto err_pci; } - if (uacce_mode == 0 || uacce_mode == 2) { - ret = hisi_zip_register_to_crypto(); - if (ret < 0) { - pr_err("Failed to register driver to crypto.\n"); - goto err_crypto; - } + ret = hisi_zip_register_to_crypto(); + if (ret < 0) { + pr_err("Failed to register driver to crypto.\n"); + goto err_crypto; } return 0; @@ -996,8 +989,7 @@ static int __init hisi_zip_init(void) static void __exit hisi_zip_exit(void) { - if (uacce_mode == 0 || uacce_mode == 2) - hisi_zip_unregister_from_crypto(); + hisi_zip_unregister_from_crypto(); pci_unregister_driver(&hisi_zip_pci_driver); hisi_zip_unregister_debugfs(); } diff --git a/include/uapi/misc/uacce/hisi_qm.h b/include/uapi/misc/uacce/hisi_qm.h new file mode 100644 index 0000000..6435f0b --- /dev/null +++ b/include/uapi/misc/uacce/hisi_qm.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ +#ifndef _UAPI_HISI_QM_H +#define _UAPI_HISI_QM_H + +#include + +/** + * struct hisi_qp_ctx - User data for hisi qp. + * @id: qp_index return to user space + * @qc_type: Accelerator algorithm type + */ +struct hisi_qp_ctx { + __u16 id; + __u16 qc_type; +}; + +#define HISI_QM_API_VER_BASE "hisi_qm_v1" +#define HISI_QM_API_VER2_BASE "hisi_qm_v2" + +/* UACCE_CMD_QM_SET_QP_CTX: Set qp algorithm type */ +#define UACCE_CMD_QM_SET_QP_CTX _IOWR('H', 10, struct hisi_qp_ctx) + +#endif