[RFC PATCH 5/7] crypto: Add Hisilicon Zip driver
Kenneth Lee
nek.in.cn at gmail.com
Wed Aug 1 20:22:19 AEST 2018
From: Kenneth Lee <liguozhu at hisilicon.com>
The Hisilicon ZIP accelerator implements zlib and gzip algorithm support
for the software. It uses Hisilicon QM as the interface to the CPU, so it
is shown up as a PCIE device to the CPU with a group of queues.
This commit provides PCIE driver to the accelerator and register it to
the crypto subsystem.
Signed-off-by: Kenneth Lee <liguozhu at hisilicon.com>
Signed-off-by: Zhou Wang <wangzhou1 at hisilicon.com>
Signed-off-by: Hao Fang <fanghao11 at huawei.com>
---
drivers/crypto/hisilicon/Kconfig | 7 +
drivers/crypto/hisilicon/Makefile | 1 +
drivers/crypto/hisilicon/zip/Makefile | 2 +
drivers/crypto/hisilicon/zip/zip.h | 55 ++++
drivers/crypto/hisilicon/zip/zip_crypto.c | 358 ++++++++++++++++++++++
drivers/crypto/hisilicon/zip/zip_crypto.h | 18 ++
drivers/crypto/hisilicon/zip/zip_main.c | 182 +++++++++++
7 files changed, 623 insertions(+)
create mode 100644 drivers/crypto/hisilicon/zip/Makefile
create mode 100644 drivers/crypto/hisilicon/zip/zip.h
create mode 100644 drivers/crypto/hisilicon/zip/zip_crypto.c
create mode 100644 drivers/crypto/hisilicon/zip/zip_crypto.h
create mode 100644 drivers/crypto/hisilicon/zip/zip_main.c
diff --git a/drivers/crypto/hisilicon/Kconfig b/drivers/crypto/hisilicon/Kconfig
index 0dd30f84b90e..48ad682e0a52 100644
--- a/drivers/crypto/hisilicon/Kconfig
+++ b/drivers/crypto/hisilicon/Kconfig
@@ -6,3 +6,10 @@ config CRYPTO_DEV_HISILICON
config CRYPTO_DEV_HISI_QM
tristate
depends on ARM64 && PCI
+
+config CRYPTO_DEV_HISI_ZIP
+ tristate "Support for HISI ZIP Driver"
+ depends on ARM64 && CRYPTO_DEV_HISILICON
+ select CRYPTO_DEV_HISI_QM
+ help
+ Support for HiSilicon HIP08 ZIP Driver
diff --git a/drivers/crypto/hisilicon/Makefile b/drivers/crypto/hisilicon/Makefile
index 3378afc11703..62e40b093c49 100644
--- a/drivers/crypto/hisilicon/Makefile
+++ b/drivers/crypto/hisilicon/Makefile
@@ -1 +1,2 @@
obj-$(CONFIG_CRYPTO_DEV_HISI_QM) += qm.o
+obj-$(CONFIG_CRYPTO_DEV_HISI_ZIP) += zip/
diff --git a/drivers/crypto/hisilicon/zip/Makefile b/drivers/crypto/hisilicon/zip/Makefile
new file mode 100644
index 000000000000..a936f099ee22
--- /dev/null
+++ b/drivers/crypto/hisilicon/zip/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_CRYPTO_DEV_HISI_ZIP) += hisi_zip.o
+hisi_zip-objs = zip_main.o zip_crypto.o
diff --git a/drivers/crypto/hisilicon/zip/zip.h b/drivers/crypto/hisilicon/zip/zip.h
new file mode 100644
index 000000000000..a0c56e4aeb51
--- /dev/null
+++ b/drivers/crypto/hisilicon/zip/zip.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+#ifndef HISI_ZIP_H
+#define HISI_ZIP_H
+
+#include <linux/list.h>
+#include "../qm.h"
+
+#define HZIP_SQE_SIZE 128
+#define HZIP_SQ_SIZE (HZIP_SQE_SIZE * QM_Q_DEPTH)
+#define QM_CQ_SIZE (QM_CQE_SIZE * QM_Q_DEPTH)
+#define HZIP_PF_DEF_Q_NUM 64
+#define HZIP_PF_DEF_Q_BASE 0
+
+struct hisi_zip {
+ struct qm_info qm;
+ struct list_head list;
+
+#ifdef CONFIG_CRYPTO_DEV_HISI_SPIMDEV
+ struct vfio_spimdev *spimdev;
+#endif
+};
+
+struct hisi_zip_sqe {
+ __u32 consumed;
+ __u32 produced;
+ __u32 comp_data_length;
+ __u32 dw3;
+ __u32 input_data_length;
+ __u32 lba_l;
+ __u32 lba_h;
+ __u32 dw7;
+ __u32 dw8;
+ __u32 dw9;
+ __u32 dw10;
+ __u32 priv_info;
+ __u32 dw12;
+ __u32 tag;
+ __u32 dest_avail_out;
+ __u32 rsvd0;
+ __u32 comp_head_addr_l;
+ __u32 comp_head_addr_h;
+ __u32 source_addr_l;
+ __u32 source_addr_h;
+ __u32 dest_addr_l;
+ __u32 dest_addr_h;
+ __u32 stream_ctx_addr_l;
+ __u32 stream_ctx_addr_h;
+ __u32 cipher_key1_addr_l;
+ __u32 cipher_key1_addr_h;
+ __u32 cipher_key2_addr_l;
+ __u32 cipher_key2_addr_h;
+ __u32 rsvd1[4];
+};
+
+#endif
diff --git a/drivers/crypto/hisilicon/zip/zip_crypto.c b/drivers/crypto/hisilicon/zip/zip_crypto.c
new file mode 100644
index 000000000000..a3a5a6a6554d
--- /dev/null
+++ b/drivers/crypto/hisilicon/zip/zip_crypto.c
@@ -0,0 +1,358 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2018 (c) HiSilicon Limited.
+ *
+ * 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.
+ */
+
+#include <linux/crypto.h>
+#include <linux/dma-mapping.h>
+#include <linux/pci.h>
+#include <linux/topology.h>
+#include "../qm.h"
+#include "zip.h"
+
+#define INPUT_BUFFER_SIZE (64 * 1024)
+#define OUTPUT_BUFFER_SIZE (64 * 1024)
+
+extern struct list_head hisi_zip_list;
+
+#define COMP_NAME_TO_TYPE(alg_name) \
+ (!strcmp((alg_name), "zlib-deflate") ? 0x02 : \
+ !strcmp((alg_name), "gzip") ? 0x03 : 0) \
+
+struct hisi_zip_buffer {
+ u8 *input;
+ dma_addr_t input_dma;
+ u8 *output;
+ dma_addr_t output_dma;
+};
+
+struct hisi_zip_qp_ctx {
+ struct hisi_zip_buffer buffer;
+ struct hisi_qp *qp;
+ struct hisi_zip_sqe zip_sqe;
+};
+
+struct hisi_zip_ctx {
+#define QPC_COMP 0
+#define QPC_DECOMP 1
+ struct hisi_zip_qp_ctx qp_ctx[2];
+};
+
+static struct hisi_zip *find_zip_device(int node)
+{
+ struct hisi_zip *hisi_zip, *ret = NULL;
+ struct device *dev;
+ int min_distance = 100;
+
+ list_for_each_entry(hisi_zip, &hisi_zip_list, list) {
+ dev = &hisi_zip->qm.pdev->dev;
+ if (node_distance(dev->numa_node, node) < min_distance) {
+ ret = hisi_zip;
+ min_distance = node_distance(dev->numa_node, node);
+ }
+ }
+
+ return ret;
+}
+
+static void hisi_zip_qp_event_notifier(struct hisi_qp *qp)
+{
+ complete(&qp->completion);
+}
+
+static int hisi_zip_fill_sqe_v1(void *sqe, void *q_parm, u32 len)
+{
+ struct hisi_zip_sqe *zip_sqe = (struct hisi_zip_sqe *)sqe;
+ struct hisi_zip_qp_ctx *qp_ctx = (struct hisi_zip_qp_ctx *)q_parm;
+ struct hisi_zip_buffer *buffer = &qp_ctx->buffer;
+
+ memset(zip_sqe, 0, sizeof(struct hisi_zip_sqe));
+
+ zip_sqe->input_data_length = len;
+ zip_sqe->dw9 = qp_ctx->qp->req_type;
+ zip_sqe->dest_avail_out = OUTPUT_BUFFER_SIZE;
+ zip_sqe->source_addr_l = lower_32_bits(buffer->input_dma);
+ zip_sqe->source_addr_h = upper_32_bits(buffer->input_dma);
+ zip_sqe->dest_addr_l = lower_32_bits(buffer->output_dma);
+ zip_sqe->dest_addr_h = upper_32_bits(buffer->output_dma);
+
+ return 0;
+}
+
+/* let's allocate one buffer now, may have problem in async case */
+static int hisi_zip_alloc_qp_buffer(struct hisi_zip_qp_ctx *hisi_zip_qp_ctx)
+{
+ struct hisi_zip_buffer *buffer = &hisi_zip_qp_ctx->buffer;
+ struct hisi_qp *qp = hisi_zip_qp_ctx->qp;
+ struct device *dev = &qp->qm->pdev->dev;
+ int ret;
+
+ buffer->input = dma_alloc_coherent(dev, INPUT_BUFFER_SIZE,
+ &buffer->input_dma, GFP_KERNEL);
+ if (!buffer->input)
+ return -ENOMEM;
+
+ buffer->output = dma_alloc_coherent(dev, OUTPUT_BUFFER_SIZE,
+ &buffer->output_dma, GFP_KERNEL);
+ if (!buffer->output) {
+ ret = -ENOMEM;
+ goto err_alloc_output_buffer;
+ }
+
+ return 0;
+
+err_alloc_output_buffer:
+ dma_free_coherent(dev, INPUT_BUFFER_SIZE, buffer->input,
+ buffer->input_dma);
+ return ret;
+}
+
+static void hisi_zip_free_qp_buffer(struct hisi_zip_qp_ctx *hisi_zip_qp_ctx)
+{
+ struct hisi_zip_buffer *buffer = &hisi_zip_qp_ctx->buffer;
+ struct hisi_qp *qp = hisi_zip_qp_ctx->qp;
+ struct device *dev = &qp->qm->pdev->dev;
+
+ dma_free_coherent(dev, INPUT_BUFFER_SIZE, buffer->input,
+ buffer->input_dma);
+ dma_free_coherent(dev, OUTPUT_BUFFER_SIZE, buffer->output,
+ buffer->output_dma);
+}
+
+static int hisi_zip_create_qp(struct qm_info *qm, struct hisi_zip_qp_ctx *ctx,
+ int alg_type, int req_type)
+{
+ struct hisi_qp *qp;
+ int ret;
+
+ qp = hisi_qm_create_qp(qm, alg_type);
+
+ if (IS_ERR(qp))
+ return PTR_ERR(qp);
+
+ qp->event_cb = hisi_zip_qp_event_notifier;
+ qp->req_type = req_type;
+
+ qp->qp_ctx = ctx;
+ ctx->qp = qp;
+
+ ret = hisi_zip_alloc_qp_buffer(ctx);
+ if (ret)
+ goto err_with_qp;
+
+ ret = hisi_qm_start_qp(qp, 0);
+ if (ret < 0)
+ goto err_with_qp_buffer;
+
+ return 0;
+err_with_qp_buffer:
+ hisi_zip_free_qp_buffer(ctx);
+err_with_qp:
+ hisi_qm_release_qp(qp);
+ return ret;
+}
+
+static void hisi_zip_release_qp(struct hisi_zip_qp_ctx *ctx)
+{
+ hisi_qm_release_qp(ctx->qp);
+ hisi_zip_free_qp_buffer(ctx);
+}
+
+static int hisi_zip_alloc_comp_ctx(struct crypto_tfm *tfm)
+{
+ struct hisi_zip_ctx *hisi_zip_ctx = crypto_tfm_ctx(tfm);
+ const char *alg_name = crypto_tfm_alg_name(tfm);
+ struct hisi_zip *hisi_zip;
+ struct qm_info *qm;
+ int ret, i, j;
+
+ u8 req_type = COMP_NAME_TO_TYPE(alg_name);
+
+ /* find the proper zip device */
+ hisi_zip = find_zip_device(cpu_to_node(smp_processor_id()));
+ if (!hisi_zip) {
+ pr_err("Can not find proper ZIP device!\n");
+ return -1;
+ }
+ qm = &hisi_zip->qm;
+
+ for (i = 0; i < 2; i++) {
+ /* it is just happen that 0 is compress, 1 is decompress on alg_type */
+ ret = hisi_zip_create_qp(qm, &hisi_zip_ctx->qp_ctx[i], i,
+ req_type);
+ if (ret)
+ goto err;
+ }
+
+ return 0;
+err:
+ for (j = i-1; j >= 0; j--)
+ hisi_zip_release_qp(&hisi_zip_ctx->qp_ctx[j]);
+
+ return ret;
+}
+
+static void hisi_zip_free_comp_ctx(struct crypto_tfm *tfm)
+{
+ struct hisi_zip_ctx *hisi_zip_ctx = crypto_tfm_ctx(tfm);
+ int i;
+
+ /* release the qp */
+ for (i = 1; i >= 0; i--)
+ hisi_zip_release_qp(&hisi_zip_ctx->qp_ctx[i]);
+}
+
+static int hisi_zip_copy_data_to_buffer(struct hisi_zip_qp_ctx *qp_ctx,
+ const u8 *src, unsigned int slen)
+{
+ struct hisi_zip_buffer *buffer = &qp_ctx->buffer;
+
+ if (slen > INPUT_BUFFER_SIZE)
+ return -EINVAL;
+
+ memcpy(buffer->input, src, slen);
+
+ return 0;
+}
+
+static struct hisi_zip_sqe *hisi_zip_get_writeback_sqe(struct hisi_qp *qp)
+{
+ struct hisi_acc_qp_status *qp_status = &qp->qp_status;
+ struct hisi_zip_sqe *sq_base = QP_SQE_ADDR(qp);
+ u16 sq_head = qp_status->sq_head;
+
+ return sq_base + sq_head;
+}
+
+static int hisi_zip_copy_data_from_buffer(struct hisi_zip_qp_ctx *qp_ctx,
+ u8 *dst, unsigned int *dlen)
+{
+ struct hisi_zip_buffer *buffer = &qp_ctx->buffer;
+ struct hisi_qp *qp = qp_ctx->qp;
+ struct hisi_zip_sqe *zip_sqe = hisi_zip_get_writeback_sqe(qp);
+ u32 status = zip_sqe->dw3 & 0xff;
+
+ if (status != 0) {
+ pr_err("hisi zip: %s fail!\n", (qp->alg_type == 0) ?
+ "compression" : "decompression");
+ return status;
+ }
+
+ if (zip_sqe->produced > OUTPUT_BUFFER_SIZE)
+ return -ENOMEM;
+
+ memcpy(dst, buffer->output, zip_sqe->produced);
+ *dlen = zip_sqe->produced;
+ qp->qp_status.sq_head++;
+
+ return 0;
+}
+
+static int hisi_zip_compress(struct crypto_tfm *tfm, const u8 *src,
+ unsigned int slen, u8 *dst, unsigned int *dlen)
+{
+ struct hisi_zip_ctx *hisi_zip_ctx = crypto_tfm_ctx(tfm);
+ struct hisi_zip_qp_ctx *qp_ctx = &hisi_zip_ctx->qp_ctx[QPC_COMP];
+ struct hisi_qp *qp = qp_ctx->qp;
+ struct hisi_zip_sqe *zip_sqe = &qp_ctx->zip_sqe;
+ int ret;
+
+ ret = hisi_zip_copy_data_to_buffer(qp_ctx, src, slen);
+ if (ret < 0)
+ return ret;
+
+ hisi_zip_fill_sqe_v1(zip_sqe, qp_ctx, slen);
+
+ /* send command to start the compress job */
+ hisi_qp_send(qp, zip_sqe);
+
+ return hisi_zip_copy_data_from_buffer(qp_ctx, dst, dlen);
+}
+
+static int hisi_zip_decompress(struct crypto_tfm *tfm, const u8 *src,
+ unsigned int slen, u8 *dst, unsigned int *dlen)
+{
+ struct hisi_zip_ctx *hisi_zip_ctx = crypto_tfm_ctx(tfm);
+ struct hisi_zip_qp_ctx *qp_ctx = &hisi_zip_ctx->qp_ctx[QPC_DECOMP];
+ struct hisi_qp *qp = qp_ctx->qp;
+ struct hisi_zip_sqe *zip_sqe = &qp_ctx->zip_sqe;
+ int ret;
+
+ ret = hisi_zip_copy_data_to_buffer(qp_ctx, src, slen);
+ if (ret < 0)
+ return ret;
+
+ hisi_zip_fill_sqe_v1(zip_sqe, qp_ctx, slen);
+
+ /* send command to start the compress job */
+ hisi_qp_send(qp, zip_sqe);
+
+ return hisi_zip_copy_data_from_buffer(qp_ctx, dst, dlen);
+}
+
+static struct crypto_alg hisi_zip_zlib = {
+ .cra_name = "zlib-deflate",
+ .cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
+ .cra_ctxsize = sizeof(struct hisi_zip_ctx),
+ .cra_priority = 300,
+ .cra_module = THIS_MODULE,
+ .cra_init = hisi_zip_alloc_comp_ctx,
+ .cra_exit = hisi_zip_free_comp_ctx,
+ .cra_u = {
+ .compress = {
+ .coa_compress = hisi_zip_compress,
+ .coa_decompress = hisi_zip_decompress
+ }
+ }
+};
+
+static struct crypto_alg hisi_zip_gzip = {
+ .cra_name = "gzip",
+ .cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
+ .cra_ctxsize = sizeof(struct hisi_zip_ctx),
+ .cra_priority = 300,
+ .cra_module = THIS_MODULE,
+ .cra_init = hisi_zip_alloc_comp_ctx,
+ .cra_exit = hisi_zip_free_comp_ctx,
+ .cra_u = {
+ .compress = {
+ .coa_compress = hisi_zip_compress,
+ .coa_decompress = hisi_zip_decompress
+ }
+ }
+};
+
+int hisi_zip_register_to_crypto(void)
+{
+ int ret;
+
+ ret = crypto_register_alg(&hisi_zip_zlib);
+ if (ret < 0) {
+ pr_err("Zlib algorithm registration failed\n");
+ return ret;
+ }
+
+ ret = crypto_register_alg(&hisi_zip_gzip);
+ if (ret < 0) {
+ pr_err("Gzip algorithm registration failed\n");
+ goto err_unregister_zlib;
+ }
+
+ return 0;
+
+err_unregister_zlib:
+ crypto_unregister_alg(&hisi_zip_zlib);
+
+ return ret;
+}
+
+void hisi_zip_unregister_from_crypto(void)
+{
+ crypto_unregister_alg(&hisi_zip_zlib);
+ crypto_unregister_alg(&hisi_zip_gzip);
+}
diff --git a/drivers/crypto/hisilicon/zip/zip_crypto.h b/drivers/crypto/hisilicon/zip/zip_crypto.h
new file mode 100644
index 000000000000..6fae34b4df3a
--- /dev/null
+++ b/drivers/crypto/hisilicon/zip/zip_crypto.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2018 HiSilicon Limited.
+ *
+ * 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.
+ *
+ */
+
+#ifndef HISI_ZIP_CRYPTO_H
+#define HISI_ZIP_CRYPTO_H
+
+int hisi_zip_register_to_crypto(void);
+void hisi_zip_unregister_from_crypto(void);
+
+#endif
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c
new file mode 100644
index 000000000000..2478cf6c5350
--- /dev/null
+++ b/drivers/crypto/hisilicon/zip/zip_main.c
@@ -0,0 +1,182 @@
+// SPDX-License-Identifier: GPL-2.0+
+#include <linux/io.h>
+#include <linux/bitops.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/vfio_spimdev.h>
+#include "zip.h"
+#include "zip_crypto.h"
+
+#define HZIP_VF_NUM 63
+#define HZIP_QUEUE_NUM_V1 4096
+#define HZIP_QUEUE_NUM_V2 1024
+
+#define HZIP_FSM_MAX_CNT 0x301008
+
+#define HZIP_PORT_ARCA_CHE_0 0x301040
+#define HZIP_PORT_ARCA_CHE_1 0x301044
+#define HZIP_PORT_AWCA_CHE_0 0x301060
+#define HZIP_PORT_AWCA_CHE_1 0x301064
+
+#define HZIP_BD_RUSER_32_63 0x301110
+#define HZIP_SGL_RUSER_32_63 0x30111c
+#define HZIP_DATA_RUSER_32_63 0x301128
+#define HZIP_DATA_WUSER_32_63 0x301134
+#define HZIP_BD_WUSER_32_63 0x301140
+
+LIST_HEAD(hisi_zip_list);
+DEFINE_MUTEX(hisi_zip_list_lock);
+
+static const char hisi_zip_name[] = "hisi_zip";
+
+static const struct pci_device_id hisi_zip_dev_ids[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, 0xa250) },
+ { 0, }
+};
+
+static inline void hisi_zip_add_to_list(struct hisi_zip *hisi_zip)
+{
+ mutex_lock(&hisi_zip_list_lock);
+ list_add_tail(&hisi_zip->list, &hisi_zip_list);
+ mutex_unlock(&hisi_zip_list_lock);
+}
+
+static void hisi_zip_set_user_domain_and_cache(struct hisi_zip *hisi_zip)
+{
+ u32 val;
+
+ /* qm user domain */
+ writel(0x40001070, hisi_zip->qm.io_base + QM_ARUSER_M_CFG_1);
+ writel(0xfffffffe, hisi_zip->qm.io_base + QM_ARUSER_M_CFG_ENABLE);
+ writel(0x40001070, hisi_zip->qm.io_base + QM_AWUSER_M_CFG_1);
+ writel(0xfffffffe, hisi_zip->qm.io_base + QM_AWUSER_M_CFG_ENABLE);
+ writel(0xffffffff, hisi_zip->qm.io_base + QM_WUSER_M_CFG_ENABLE);
+ writel(0x4893, hisi_zip->qm.io_base + QM_CACHE_CTL);
+
+ val = readl(hisi_zip->qm.io_base + QM_PEH_AXUSER_CFG);
+ val |= (1 << 11);
+ writel(val, hisi_zip->qm.io_base + QM_PEH_AXUSER_CFG);
+
+ /* qm cache */
+ writel(0xffff, hisi_zip->qm.io_base + QM_AXI_M_CFG);
+ writel(0xffffffff, hisi_zip->qm.io_base + QM_AXI_M_CFG_ENABLE);
+ writel(0xffffffff, hisi_zip->qm.io_base + QM_PEH_AXUSER_CFG_ENABLE);
+
+ /* cache */
+ writel(0xffffffff, hisi_zip->qm.io_base + HZIP_PORT_ARCA_CHE_0);
+ writel(0xffffffff, hisi_zip->qm.io_base + HZIP_PORT_ARCA_CHE_1);
+ writel(0xffffffff, hisi_zip->qm.io_base + HZIP_PORT_AWCA_CHE_0);
+ writel(0xffffffff, hisi_zip->qm.io_base + HZIP_PORT_AWCA_CHE_1);
+ /* user domain configurations */
+ writel(0x40001070, hisi_zip->qm.io_base + HZIP_BD_RUSER_32_63);
+ writel(0x40001070, hisi_zip->qm.io_base + HZIP_SGL_RUSER_32_63);
+ writel(0x40001071, hisi_zip->qm.io_base + HZIP_DATA_RUSER_32_63);
+ writel(0x40001071, hisi_zip->qm.io_base + HZIP_DATA_WUSER_32_63);
+ writel(0x40001070, hisi_zip->qm.io_base + HZIP_BD_WUSER_32_63);
+
+ /* fsm count */
+ writel(0xfffffff, hisi_zip->qm.io_base + HZIP_FSM_MAX_CNT);
+
+ /* clock gating, core, decompress verify enable */
+ writel(0x10005, hisi_zip->qm.io_base + 0x301004);
+}
+
+static int hisi_zip_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct hisi_zip *hisi_zip;
+ struct qm_info *qm;
+ int ret;
+ u8 rev_id;
+
+ hisi_zip = devm_kzalloc(&pdev->dev, sizeof(*hisi_zip), GFP_KERNEL);
+ if (!hisi_zip)
+ return -ENOMEM;
+ hisi_zip_add_to_list(hisi_zip);
+
+ qm = &hisi_zip->qm;
+ qm->pdev = pdev;
+
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &rev_id);
+ if (rev_id == 0x20)
+ qm->ver = 1;
+ qm->sqe_size = HZIP_SQE_SIZE;
+ ret = hisi_qm_init(hisi_zip_name, qm);
+ if (ret)
+ goto err_with_hisi_zip;
+
+ if (pdev->is_physfn) {
+ ret = hisi_qm_mem_start(qm);
+ if (ret)
+ goto err_with_qm_init;
+
+ hisi_zip_set_user_domain_and_cache(hisi_zip);
+
+ qm->qp_base = HZIP_PF_DEF_Q_BASE;
+ qm->qp_num = HZIP_PF_DEF_Q_NUM;
+ }
+
+ ret = hisi_qm_start(qm);
+ if (ret)
+ goto err_with_qm_init;
+
+ return 0;
+
+err_with_qm_init:
+ hisi_qm_uninit(qm);
+err_with_hisi_zip:
+ kfree(hisi_zip);
+ return ret;
+}
+
+static void hisi_zip_remove(struct pci_dev *pdev)
+{
+ struct hisi_zip *hisi_zip = pci_get_drvdata(pdev);
+ struct qm_info *qm = &hisi_zip->qm;
+
+ hisi_qm_stop(qm);
+ hisi_qm_uninit(qm);
+ kfree(hisi_zip);
+}
+
+static struct pci_driver hisi_zip_pci_driver = {
+ .name = "hisi_zip",
+ .id_table = hisi_zip_dev_ids,
+ .probe = hisi_zip_probe,
+ .remove = hisi_zip_remove,
+};
+
+static int __init hisi_zip_init(void)
+{
+ int ret;
+
+ ret = pci_register_driver(&hisi_zip_pci_driver);
+ if (ret < 0) {
+ pr_err("zip: can't register hisi zip driver.\n");
+ return ret;
+ }
+
+ ret = hisi_zip_register_to_crypto();
+ if (ret < 0) {
+ pr_err("zip: can't register hisi zip to crypto.\n");
+ pci_unregister_driver(&hisi_zip_pci_driver);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void __exit hisi_zip_exit(void)
+{
+ hisi_zip_unregister_from_crypto();
+ pci_unregister_driver(&hisi_zip_pci_driver);
+}
+
+module_init(hisi_zip_init);
+module_exit(hisi_zip_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Zhou Wang <wangzhou1 at hisilicon.com>");
+MODULE_DESCRIPTION("Driver for HiSilicon ZIP accelerator");
+MODULE_DEVICE_TABLE(pci, hisi_zip_dev_ids);
--
2.17.1
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