Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1323 insertions, 0 deletions

diff --git a/drivers/crypto/hisilicon/sec/sec_drv.c b/drivers/crypto/hisilicon/sec/sec_drv.c
new file mode 100644
index 000000000..c1ee4e7bf
--- /dev/null
+++ b/drivers/crypto/hisilicon/sec/sec_drv.c
@@ -0,0 +1,1323 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for the Hisilicon SEC units found on Hip06 Hip07
+ *
+ * Copyright (c) 2016-2017 Hisilicon Limited.
+ */
+#include <linux/acpi.h>
+#include <linux/atomic.h>
+#include <linux/delay.h>
+#include <linux/dma-direction.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmapool.h>
+#include <linux/io.h>
+#include <linux/iommu.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/irqreturn.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include "sec_drv.h"
+
+#define SEC_QUEUE_AR_FROCE_ALLOC			0
+#define SEC_QUEUE_AR_FROCE_NOALLOC			1
+#define SEC_QUEUE_AR_FROCE_DIS				2
+
+#define SEC_QUEUE_AW_FROCE_ALLOC			0
+#define SEC_QUEUE_AW_FROCE_NOALLOC			1
+#define SEC_QUEUE_AW_FROCE_DIS				2
+
+/* SEC_ALGSUB registers */
+#define SEC_ALGSUB_CLK_EN_REG				0x03b8
+#define SEC_ALGSUB_CLK_DIS_REG				0x03bc
+#define SEC_ALGSUB_CLK_ST_REG				0x535c
+#define SEC_ALGSUB_RST_REQ_REG				0x0aa8
+#define SEC_ALGSUB_RST_DREQ_REG				0x0aac
+#define SEC_ALGSUB_RST_ST_REG				0x5a54
+#define   SEC_ALGSUB_RST_ST_IS_RST			BIT(0)
+
+#define SEC_ALGSUB_BUILD_RST_REQ_REG			0x0ab8
+#define SEC_ALGSUB_BUILD_RST_DREQ_REG			0x0abc
+#define SEC_ALGSUB_BUILD_RST_ST_REG			0x5a5c
+#define   SEC_ALGSUB_BUILD_RST_ST_IS_RST		BIT(0)
+
+#define SEC_SAA_BASE					0x00001000UL
+
+/* SEC_SAA registers */
+#define SEC_SAA_CTRL_REG(x)	((x) * SEC_SAA_ADDR_SIZE)
+#define   SEC_SAA_CTRL_GET_QM_EN			BIT(0)
+
+#define SEC_ST_INTMSK1_REG				0x0200
+#define SEC_ST_RINT1_REG				0x0400
+#define SEC_ST_INTSTS1_REG				0x0600
+#define SEC_BD_MNG_STAT_REG				0x0800
+#define SEC_PARSING_STAT_REG				0x0804
+#define SEC_LOAD_TIME_OUT_CNT_REG			0x0808
+#define SEC_CORE_WORK_TIME_OUT_CNT_REG			0x080c
+#define SEC_BACK_TIME_OUT_CNT_REG			0x0810
+#define SEC_BD1_PARSING_RD_TIME_OUT_CNT_REG		0x0814
+#define SEC_BD1_PARSING_WR_TIME_OUT_CNT_REG		0x0818
+#define SEC_BD2_PARSING_RD_TIME_OUT_CNT_REG		0x081c
+#define SEC_BD2_PARSING_WR_TIME_OUT_CNT_REG		0x0820
+#define SEC_SAA_ACC_REG					0x083c
+#define SEC_BD_NUM_CNT_IN_SEC_REG			0x0858
+#define SEC_LOAD_WORK_TIME_CNT_REG			0x0860
+#define SEC_CORE_WORK_WORK_TIME_CNT_REG			0x0864
+#define SEC_BACK_WORK_TIME_CNT_REG			0x0868
+#define SEC_SAA_IDLE_TIME_CNT_REG			0x086c
+#define SEC_SAA_CLK_CNT_REG				0x0870
+
+/* SEC_COMMON registers */
+#define SEC_CLK_EN_REG					0x0000
+#define SEC_CTRL_REG					0x0004
+
+#define SEC_COMMON_CNT_CLR_CE_REG			0x0008
+#define   SEC_COMMON_CNT_CLR_CE_CLEAR			BIT(0)
+#define   SEC_COMMON_CNT_CLR_CE_SNAP_EN			BIT(1)
+
+#define SEC_SECURE_CTRL_REG				0x000c
+#define SEC_AXI_CACHE_CFG_REG				0x0010
+#define SEC_AXI_QOS_CFG_REG				0x0014
+#define SEC_IPV4_MASK_TABLE_REG				0x0020
+#define SEC_IPV6_MASK_TABLE_X_REG(x)	(0x0024 + (x) * 4)
+#define SEC_FSM_MAX_CNT_REG				0x0064
+
+#define SEC_CTRL2_REG					0x0068
+#define   SEC_CTRL2_DATA_AXI_RD_OTSD_CFG_M		GENMASK(3, 0)
+#define   SEC_CTRL2_DATA_AXI_RD_OTSD_CFG_S		0
+#define   SEC_CTRL2_DATA_AXI_WR_OTSD_CFG_M		GENMASK(6, 4)
+#define   SEC_CTRL2_DATA_AXI_WR_OTSD_CFG_S		4
+#define   SEC_CTRL2_CLK_GATE_EN				BIT(7)
+#define   SEC_CTRL2_ENDIAN_BD				BIT(8)
+#define   SEC_CTRL2_ENDIAN_BD_TYPE			BIT(9)
+
+#define SEC_CNT_PRECISION_CFG_REG			0x006c
+#define SEC_DEBUG_BD_CFG_REG				0x0070
+#define   SEC_DEBUG_BD_CFG_WB_NORMAL			BIT(0)
+#define   SEC_DEBUG_BD_CFG_WB_EN			BIT(1)
+
+#define SEC_Q_SIGHT_SEL					0x0074
+#define SEC_Q_SIGHT_HIS_CLR				0x0078
+#define SEC_Q_VMID_CFG_REG(q)		(0x0100 + (q) * 4)
+#define SEC_Q_WEIGHT_CFG_REG(q)		(0x200 + (q) * 4)
+#define SEC_STAT_CLR_REG				0x0a00
+#define SEC_SAA_IDLE_CNT_CLR_REG			0x0a04
+#define SEC_QM_CPL_Q_IDBUF_DFX_CFG_REG			0x0b00
+#define SEC_QM_CPL_Q_IDBUF_DFX_RESULT_REG		0x0b04
+#define SEC_QM_BD_DFX_CFG_REG				0x0b08
+#define SEC_QM_BD_DFX_RESULT_REG			0x0b0c
+#define SEC_QM_BDID_DFX_RESULT_REG			0x0b10
+#define SEC_QM_BD_DFIFO_STATUS_REG			0x0b14
+#define SEC_QM_BD_DFX_CFG2_REG				0x0b1c
+#define SEC_QM_BD_DFX_RESULT2_REG			0x0b20
+#define SEC_QM_BD_IDFIFO_STATUS_REG			0x0b18
+#define SEC_QM_BD_DFIFO_STATUS2_REG			0x0b28
+#define SEC_QM_BD_IDFIFO_STATUS2_REG			0x0b2c
+
+#define SEC_HASH_IPV4_MASK				0xfff00000
+#define SEC_MAX_SAA_NUM					0xa
+#define SEC_SAA_ADDR_SIZE				0x1000
+
+#define SEC_Q_INIT_REG					0x0
+#define   SEC_Q_INIT_WO_STAT_CLEAR			0x2
+#define   SEC_Q_INIT_AND_STAT_CLEAR			0x3
+
+#define SEC_Q_CFG_REG					0x8
+#define   SEC_Q_CFG_REORDER				BIT(0)
+
+#define SEC_Q_PROC_NUM_CFG_REG				0x10
+#define SEC_QUEUE_ENB_REG				0x18
+
+#define SEC_Q_DEPTH_CFG_REG				0x50
+#define   SEC_Q_DEPTH_CFG_DEPTH_M			GENMASK(11, 0)
+#define   SEC_Q_DEPTH_CFG_DEPTH_S			0
+
+#define SEC_Q_BASE_HADDR_REG				0x54
+#define SEC_Q_BASE_LADDR_REG				0x58
+#define SEC_Q_WR_PTR_REG				0x5c
+#define SEC_Q_OUTORDER_BASE_HADDR_REG			0x60
+#define SEC_Q_OUTORDER_BASE_LADDR_REG			0x64
+#define SEC_Q_OUTORDER_RD_PTR_REG			0x68
+#define SEC_Q_OT_TH_REG					0x6c
+
+#define SEC_Q_ARUSER_CFG_REG				0x70
+#define   SEC_Q_ARUSER_CFG_FA				BIT(0)
+#define   SEC_Q_ARUSER_CFG_FNA				BIT(1)
+#define   SEC_Q_ARUSER_CFG_RINVLD			BIT(2)
+#define   SEC_Q_ARUSER_CFG_PKG				BIT(3)
+
+#define SEC_Q_AWUSER_CFG_REG				0x74
+#define   SEC_Q_AWUSER_CFG_FA				BIT(0)
+#define   SEC_Q_AWUSER_CFG_FNA				BIT(1)
+#define   SEC_Q_AWUSER_CFG_PKG				BIT(2)
+
+#define SEC_Q_ERR_BASE_HADDR_REG			0x7c
+#define SEC_Q_ERR_BASE_LADDR_REG			0x80
+#define SEC_Q_CFG_VF_NUM_REG				0x84
+#define SEC_Q_SOFT_PROC_PTR_REG				0x88
+#define SEC_Q_FAIL_INT_MSK_REG				0x300
+#define SEC_Q_FLOW_INT_MKS_REG				0x304
+#define SEC_Q_FAIL_RINT_REG				0x400
+#define SEC_Q_FLOW_RINT_REG				0x404
+#define SEC_Q_FAIL_INT_STATUS_REG			0x500
+#define SEC_Q_FLOW_INT_STATUS_REG			0x504
+#define SEC_Q_STATUS_REG				0x600
+#define SEC_Q_RD_PTR_REG				0x604
+#define SEC_Q_PRO_PTR_REG				0x608
+#define SEC_Q_OUTORDER_WR_PTR_REG			0x60c
+#define SEC_Q_OT_CNT_STATUS_REG				0x610
+#define SEC_Q_INORDER_BD_NUM_ST_REG			0x650
+#define SEC_Q_INORDER_GET_FLAG_ST_REG			0x654
+#define SEC_Q_INORDER_ADD_FLAG_ST_REG			0x658
+#define SEC_Q_INORDER_TASK_INT_NUM_LEFT_ST_REG		0x65c
+#define SEC_Q_RD_DONE_PTR_REG				0x660
+#define SEC_Q_CPL_Q_BD_NUM_ST_REG			0x700
+#define SEC_Q_CPL_Q_PTR_ST_REG				0x704
+#define SEC_Q_CPL_Q_H_ADDR_ST_REG			0x708
+#define SEC_Q_CPL_Q_L_ADDR_ST_REG			0x70c
+#define SEC_Q_CPL_TASK_INT_NUM_LEFT_ST_REG		0x710
+#define SEC_Q_WRR_ID_CHECK_REG				0x714
+#define SEC_Q_CPLQ_FULL_CHECK_REG			0x718
+#define SEC_Q_SUCCESS_BD_CNT_REG			0x800
+#define SEC_Q_FAIL_BD_CNT_REG				0x804
+#define SEC_Q_GET_BD_CNT_REG				0x808
+#define SEC_Q_IVLD_CNT_REG				0x80c
+#define SEC_Q_BD_PROC_GET_CNT_REG			0x810
+#define SEC_Q_BD_PROC_DONE_CNT_REG			0x814
+#define SEC_Q_LAT_CLR_REG				0x850
+#define SEC_Q_PKT_LAT_MAX_REG				0x854
+#define SEC_Q_PKT_LAT_AVG_REG				0x858
+#define SEC_Q_PKT_LAT_MIN_REG				0x85c
+#define SEC_Q_ID_CLR_CFG_REG				0x900
+#define SEC_Q_1ST_BD_ERR_ID_REG				0x904
+#define SEC_Q_1ST_AUTH_FAIL_ID_REG			0x908
+#define SEC_Q_1ST_RD_ERR_ID_REG				0x90c
+#define SEC_Q_1ST_ECC2_ERR_ID_REG			0x910
+#define SEC_Q_1ST_IVLD_ID_REG				0x914
+#define SEC_Q_1ST_BD_WR_ERR_ID_REG			0x918
+#define SEC_Q_1ST_ERR_BD_WR_ERR_ID_REG			0x91c
+#define SEC_Q_1ST_BD_MAC_WR_ERR_ID_REG			0x920
+
+struct sec_debug_bd_info {
+#define SEC_DEBUG_BD_INFO_SOFT_ERR_CHECK_M	GENMASK(22, 0)
+	u32 soft_err_check;
+#define SEC_DEBUG_BD_INFO_HARD_ERR_CHECK_M	GENMASK(9, 0)
+	u32 hard_err_check;
+	u32 icv_mac1st_word;
+#define SEC_DEBUG_BD_INFO_GET_ID_M		GENMASK(19, 0)
+	u32 sec_get_id;
+	/* W4---W15 */
+	u32 reserv_left[12];
+};
+
+struct sec_out_bd_info	{
+#define SEC_OUT_BD_INFO_Q_ID_M			GENMASK(11, 0)
+#define SEC_OUT_BD_INFO_ECC_2BIT_ERR		BIT(14)
+	u16 data;
+};
+
+#define SEC_MAX_DEVICES				8
+static struct sec_dev_info *sec_devices[SEC_MAX_DEVICES];
+static DEFINE_MUTEX(sec_id_lock);
+
+static int sec_queue_map_io(struct sec_queue *queue)
+{
+	struct device *dev = queue->dev_info->dev;
+	struct resource *res;
+
+	res = platform_get_resource(to_platform_device(dev),
+				    IORESOURCE_MEM,
+				    2 + queue->queue_id);
+	if (!res) {
+		dev_err(dev, "Failed to get queue %d memory resource\n",
+			queue->queue_id);
+		return -ENOMEM;
+	}
+	queue->regs = ioremap(res->start, resource_size(res));
+	if (!queue->regs)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static void sec_queue_unmap_io(struct sec_queue *queue)
+{
+	 iounmap(queue->regs);
+}
+
+static int sec_queue_ar_pkgattr(struct sec_queue *queue, u32 ar_pkg)
+{
+	void __iomem *addr = queue->regs +  SEC_Q_ARUSER_CFG_REG;
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	if (ar_pkg)
+		regval |= SEC_Q_ARUSER_CFG_PKG;
+	else
+		regval &= ~SEC_Q_ARUSER_CFG_PKG;
+	writel_relaxed(regval, addr);
+
+	return 0;
+}
+
+static int sec_queue_aw_pkgattr(struct sec_queue *queue, u32 aw_pkg)
+{
+	void __iomem *addr = queue->regs + SEC_Q_AWUSER_CFG_REG;
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	regval |= SEC_Q_AWUSER_CFG_PKG;
+	writel_relaxed(regval, addr);
+
+	return 0;
+}
+
+static int sec_clk_en(struct sec_dev_info *info)
+{
+	void __iomem *base = info->regs[SEC_COMMON];
+	u32 i = 0;
+
+	writel_relaxed(0x7, base + SEC_ALGSUB_CLK_EN_REG);
+	do {
+		usleep_range(1000, 10000);
+		if ((readl_relaxed(base + SEC_ALGSUB_CLK_ST_REG) & 0x7) == 0x7)
+			return 0;
+		i++;
+	} while (i < 10);
+	dev_err(info->dev, "sec clock enable fail!\n");
+
+	return -EIO;
+}
+
+static int sec_clk_dis(struct sec_dev_info *info)
+{
+	void __iomem *base = info->regs[SEC_COMMON];
+	u32 i = 0;
+
+	writel_relaxed(0x7, base + SEC_ALGSUB_CLK_DIS_REG);
+	do {
+		usleep_range(1000, 10000);
+		if ((readl_relaxed(base + SEC_ALGSUB_CLK_ST_REG) & 0x7) == 0)
+			return 0;
+		i++;
+	} while (i < 10);
+	dev_err(info->dev, "sec clock disable fail!\n");
+
+	return -EIO;
+}
+
+static int sec_reset_whole_module(struct sec_dev_info *info)
+{
+	void __iomem *base = info->regs[SEC_COMMON];
+	bool is_reset, b_is_reset;
+	u32 i = 0;
+
+	writel_relaxed(1, base + SEC_ALGSUB_RST_REQ_REG);
+	writel_relaxed(1, base + SEC_ALGSUB_BUILD_RST_REQ_REG);
+	while (1) {
+		usleep_range(1000, 10000);
+		is_reset = readl_relaxed(base + SEC_ALGSUB_RST_ST_REG) &
+			SEC_ALGSUB_RST_ST_IS_RST;
+		b_is_reset = readl_relaxed(base + SEC_ALGSUB_BUILD_RST_ST_REG) &
+			SEC_ALGSUB_BUILD_RST_ST_IS_RST;
+		if (is_reset && b_is_reset)
+			break;
+		i++;
+		if (i > 10) {
+			dev_err(info->dev, "Reset req failed\n");
+			return -EIO;
+		}
+	}
+
+	i = 0;
+	writel_relaxed(1, base + SEC_ALGSUB_RST_DREQ_REG);
+	writel_relaxed(1, base + SEC_ALGSUB_BUILD_RST_DREQ_REG);
+	while (1) {
+		usleep_range(1000, 10000);
+		is_reset = readl_relaxed(base + SEC_ALGSUB_RST_ST_REG) &
+			SEC_ALGSUB_RST_ST_IS_RST;
+		b_is_reset = readl_relaxed(base + SEC_ALGSUB_BUILD_RST_ST_REG) &
+			SEC_ALGSUB_BUILD_RST_ST_IS_RST;
+		if (!is_reset && !b_is_reset)
+			break;
+
+		i++;
+		if (i > 10) {
+			dev_err(info->dev, "Reset dreq failed\n");
+			return -EIO;
+		}
+	}
+
+	return 0;
+}
+
+static void sec_bd_endian_little(struct sec_dev_info *info)
+{
+	void __iomem *addr = info->regs[SEC_SAA] + SEC_CTRL2_REG;
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	regval &= ~(SEC_CTRL2_ENDIAN_BD | SEC_CTRL2_ENDIAN_BD_TYPE);
+	writel_relaxed(regval, addr);
+}
+
+/*
+ * sec_cache_config - configure optimum cache placement
+ */
+static void sec_cache_config(struct sec_dev_info *info)
+{
+	struct iommu_domain *domain;
+	void __iomem *addr = info->regs[SEC_SAA] + SEC_CTRL_REG;
+
+	domain = iommu_get_domain_for_dev(info->dev);
+
+	/* Check that translation is occurring */
+	if (domain && (domain->type & __IOMMU_DOMAIN_PAGING))
+		writel_relaxed(0x44cf9e, addr);
+	else
+		writel_relaxed(0x4cfd9, addr);
+}
+
+static void sec_data_axiwr_otsd_cfg(struct sec_dev_info *info, u32 cfg)
+{
+	void __iomem *addr = info->regs[SEC_SAA] + SEC_CTRL2_REG;
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	regval &= ~SEC_CTRL2_DATA_AXI_WR_OTSD_CFG_M;
+	regval |= (cfg << SEC_CTRL2_DATA_AXI_WR_OTSD_CFG_S) &
+		SEC_CTRL2_DATA_AXI_WR_OTSD_CFG_M;
+	writel_relaxed(regval, addr);
+}
+
+static void sec_data_axird_otsd_cfg(struct sec_dev_info *info, u32 cfg)
+{
+	void __iomem *addr = info->regs[SEC_SAA] + SEC_CTRL2_REG;
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	regval &= ~SEC_CTRL2_DATA_AXI_RD_OTSD_CFG_M;
+	regval |= (cfg << SEC_CTRL2_DATA_AXI_RD_OTSD_CFG_S) &
+		SEC_CTRL2_DATA_AXI_RD_OTSD_CFG_M;
+	writel_relaxed(regval, addr);
+}
+
+static void sec_clk_gate_en(struct sec_dev_info *info, bool clkgate)
+{
+	void __iomem *addr = info->regs[SEC_SAA] + SEC_CTRL2_REG;
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	if (clkgate)
+		regval |= SEC_CTRL2_CLK_GATE_EN;
+	else
+		regval &= ~SEC_CTRL2_CLK_GATE_EN;
+	writel_relaxed(regval, addr);
+}
+
+static void sec_comm_cnt_cfg(struct sec_dev_info *info, bool clr_ce)
+{
+	void __iomem *addr = info->regs[SEC_SAA] + SEC_COMMON_CNT_CLR_CE_REG;
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	if (clr_ce)
+		regval |= SEC_COMMON_CNT_CLR_CE_CLEAR;
+	else
+		regval &= ~SEC_COMMON_CNT_CLR_CE_CLEAR;
+	writel_relaxed(regval, addr);
+}
+
+static void sec_commsnap_en(struct sec_dev_info *info, bool snap_en)
+{
+	void __iomem *addr = info->regs[SEC_SAA] + SEC_COMMON_CNT_CLR_CE_REG;
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	if (snap_en)
+		regval |= SEC_COMMON_CNT_CLR_CE_SNAP_EN;
+	else
+		regval &= ~SEC_COMMON_CNT_CLR_CE_SNAP_EN;
+	writel_relaxed(regval, addr);
+}
+
+static void sec_ipv6_hashmask(struct sec_dev_info *info, u32 hash_mask[])
+{
+	void __iomem *base = info->regs[SEC_SAA];
+	int i;
+
+	for (i = 0; i < 10; i++)
+		writel_relaxed(hash_mask[0],
+			       base + SEC_IPV6_MASK_TABLE_X_REG(i));
+}
+
+static int sec_ipv4_hashmask(struct sec_dev_info *info, u32 hash_mask)
+{
+	if (hash_mask & SEC_HASH_IPV4_MASK) {
+		dev_err(info->dev, "Sec Ipv4 Hash Mask Input Error!\n ");
+		return -EINVAL;
+	}
+
+	writel_relaxed(hash_mask,
+		       info->regs[SEC_SAA] + SEC_IPV4_MASK_TABLE_REG);
+
+	return 0;
+}
+
+static void sec_set_dbg_bd_cfg(struct sec_dev_info *info, u32 cfg)
+{
+	void __iomem *addr = info->regs[SEC_SAA] + SEC_DEBUG_BD_CFG_REG;
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	/* Always disable write back of normal bd */
+	regval &= ~SEC_DEBUG_BD_CFG_WB_NORMAL;
+
+	if (cfg)
+		regval &= ~SEC_DEBUG_BD_CFG_WB_EN;
+	else
+		regval |= SEC_DEBUG_BD_CFG_WB_EN;
+
+	writel_relaxed(regval, addr);
+}
+
+static void sec_saa_getqm_en(struct sec_dev_info *info, u32 saa_indx, u32 en)
+{
+	void __iomem *addr = info->regs[SEC_SAA] + SEC_SAA_BASE +
+		SEC_SAA_CTRL_REG(saa_indx);
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	if (en)
+		regval |= SEC_SAA_CTRL_GET_QM_EN;
+	else
+		regval &= ~SEC_SAA_CTRL_GET_QM_EN;
+	writel_relaxed(regval, addr);
+}
+
+static void sec_saa_int_mask(struct sec_dev_info *info, u32 saa_indx,
+			     u32 saa_int_mask)
+{
+	writel_relaxed(saa_int_mask,
+		       info->regs[SEC_SAA] + SEC_SAA_BASE + SEC_ST_INTMSK1_REG +
+		       saa_indx * SEC_SAA_ADDR_SIZE);
+}
+
+static void sec_streamid(struct sec_dev_info *info, int i)
+{
+	#define SEC_SID 0x600
+	#define SEC_VMID 0
+
+	writel_relaxed((SEC_VMID | ((SEC_SID & 0xffff) << 8)),
+		       info->regs[SEC_SAA] + SEC_Q_VMID_CFG_REG(i));
+}
+
+static void sec_queue_ar_alloc(struct sec_queue *queue, u32 alloc)
+{
+	void __iomem *addr = queue->regs + SEC_Q_ARUSER_CFG_REG;
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	if (alloc == SEC_QUEUE_AR_FROCE_ALLOC) {
+		regval |= SEC_Q_ARUSER_CFG_FA;
+		regval &= ~SEC_Q_ARUSER_CFG_FNA;
+	} else {
+		regval &= ~SEC_Q_ARUSER_CFG_FA;
+		regval |= SEC_Q_ARUSER_CFG_FNA;
+	}
+
+	writel_relaxed(regval, addr);
+}
+
+static void sec_queue_aw_alloc(struct sec_queue *queue, u32 alloc)
+{
+	void __iomem *addr = queue->regs + SEC_Q_AWUSER_CFG_REG;
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	if (alloc == SEC_QUEUE_AW_FROCE_ALLOC) {
+		regval |= SEC_Q_AWUSER_CFG_FA;
+		regval &= ~SEC_Q_AWUSER_CFG_FNA;
+	} else {
+		regval &= ~SEC_Q_AWUSER_CFG_FA;
+		regval |= SEC_Q_AWUSER_CFG_FNA;
+	}
+
+	writel_relaxed(regval, addr);
+}
+
+static void sec_queue_reorder(struct sec_queue *queue, bool reorder)
+{
+	void __iomem *base = queue->regs;
+	u32 regval;
+
+	regval = readl_relaxed(base + SEC_Q_CFG_REG);
+	if (reorder)
+		regval |= SEC_Q_CFG_REORDER;
+	else
+		regval &= ~SEC_Q_CFG_REORDER;
+	writel_relaxed(regval, base + SEC_Q_CFG_REG);
+}
+
+static void sec_queue_depth(struct sec_queue *queue, u32 depth)
+{
+	void __iomem *addr = queue->regs + SEC_Q_DEPTH_CFG_REG;
+	u32 regval;
+
+	regval = readl_relaxed(addr);
+	regval &= ~SEC_Q_DEPTH_CFG_DEPTH_M;
+	regval |= (depth << SEC_Q_DEPTH_CFG_DEPTH_S) & SEC_Q_DEPTH_CFG_DEPTH_M;
+
+	writel_relaxed(regval, addr);
+}
+
+static void sec_queue_cmdbase_addr(struct sec_queue *queue, u64 addr)
+{
+	writel_relaxed(upper_32_bits(addr), queue->regs + SEC_Q_BASE_HADDR_REG);
+	writel_relaxed(lower_32_bits(addr), queue->regs + SEC_Q_BASE_LADDR_REG);
+}
+
+static void sec_queue_outorder_addr(struct sec_queue *queue, u64 addr)
+{
+	writel_relaxed(upper_32_bits(addr),
+		       queue->regs + SEC_Q_OUTORDER_BASE_HADDR_REG);
+	writel_relaxed(lower_32_bits(addr),
+		       queue->regs + SEC_Q_OUTORDER_BASE_LADDR_REG);
+}
+
+static void sec_queue_errbase_addr(struct sec_queue *queue, u64 addr)
+{
+	writel_relaxed(upper_32_bits(addr),
+		       queue->regs + SEC_Q_ERR_BASE_HADDR_REG);
+	writel_relaxed(lower_32_bits(addr),
+		       queue->regs + SEC_Q_ERR_BASE_LADDR_REG);
+}
+
+static void sec_queue_irq_disable(struct sec_queue *queue)
+{
+	writel_relaxed((u32)~0, queue->regs + SEC_Q_FLOW_INT_MKS_REG);
+}
+
+static void sec_queue_irq_enable(struct sec_queue *queue)
+{
+	writel_relaxed(0, queue->regs + SEC_Q_FLOW_INT_MKS_REG);
+}
+
+static void sec_queue_abn_irq_disable(struct sec_queue *queue)
+{
+	writel_relaxed((u32)~0, queue->regs + SEC_Q_FAIL_INT_MSK_REG);
+}
+
+static void sec_queue_stop(struct sec_queue *queue)
+{
+	disable_irq(queue->task_irq);
+	sec_queue_irq_disable(queue);
+	writel_relaxed(0x0, queue->regs + SEC_QUEUE_ENB_REG);
+}
+
+static void sec_queue_start(struct sec_queue *queue)
+{
+	sec_queue_irq_enable(queue);
+	enable_irq(queue->task_irq);
+	queue->expected = 0;
+	writel_relaxed(SEC_Q_INIT_AND_STAT_CLEAR, queue->regs + SEC_Q_INIT_REG);
+	writel_relaxed(0x1, queue->regs + SEC_QUEUE_ENB_REG);
+}
+
+static struct sec_queue *sec_alloc_queue(struct sec_dev_info *info)
+{
+	int i;
+
+	mutex_lock(&info->dev_lock);
+
+	/* Get the first idle queue in SEC device */
+	for (i = 0; i < SEC_Q_NUM; i++)
+		if (!info->queues[i].in_use) {
+			info->queues[i].in_use = true;
+			info->queues_in_use++;
+			mutex_unlock(&info->dev_lock);
+
+			return &info->queues[i];
+		}
+	mutex_unlock(&info->dev_lock);
+
+	return ERR_PTR(-ENODEV);
+}
+
+static int sec_queue_free(struct sec_queue *queue)
+{
+	struct sec_dev_info *info = queue->dev_info;
+
+	if (queue->queue_id >= SEC_Q_NUM) {
+		dev_err(info->dev, "No queue %d\n", queue->queue_id);
+		return -ENODEV;
+	}
+
+	if (!queue->in_use) {
+		dev_err(info->dev, "Queue %d is idle\n", queue->queue_id);
+		return -ENODEV;
+	}
+
+	mutex_lock(&info->dev_lock);
+	queue->in_use = false;
+	info->queues_in_use--;
+	mutex_unlock(&info->dev_lock);
+
+	return 0;
+}
+
+static irqreturn_t sec_isr_handle_th(int irq, void *q)
+{
+	sec_queue_irq_disable(q);
+	return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t sec_isr_handle(int irq, void *q)
+{
+	struct sec_queue *queue = q;
+	struct sec_queue_ring_cmd *msg_ring = &queue->ring_cmd;
+	struct sec_queue_ring_cq *cq_ring = &queue->ring_cq;
+	struct sec_out_bd_info *outorder_msg;
+	struct sec_bd_info *msg;
+	u32 ooo_read, ooo_write;
+	void __iomem *base = queue->regs;
+	int q_id;
+
+	ooo_read = readl(base + SEC_Q_OUTORDER_RD_PTR_REG);
+	ooo_write = readl(base + SEC_Q_OUTORDER_WR_PTR_REG);
+	outorder_msg = cq_ring->vaddr + ooo_read;
+	q_id = outorder_msg->data & SEC_OUT_BD_INFO_Q_ID_M;
+	msg = msg_ring->vaddr + q_id;
+
+	while ((ooo_write != ooo_read) && msg->w0 & SEC_BD_W0_DONE) {
+		/*
+		 * Must be before callback otherwise blocks adding other chained
+		 * elements
+		 */
+		set_bit(q_id, queue->unprocessed);
+		if (q_id == queue->expected)
+			while (test_bit(queue->expected, queue->unprocessed)) {
+				clear_bit(queue->expected, queue->unprocessed);
+				msg = msg_ring->vaddr + queue->expected;
+				msg->w0 &= ~SEC_BD_W0_DONE;
+				msg_ring->callback(msg,
+						queue->shadow[queue->expected]);
+				queue->shadow[queue->expected] = NULL;
+				queue->expected = (queue->expected + 1) %
+					SEC_QUEUE_LEN;
+				atomic_dec(&msg_ring->used);
+			}
+
+		ooo_read = (ooo_read + 1) % SEC_QUEUE_LEN;
+		writel(ooo_read, base + SEC_Q_OUTORDER_RD_PTR_REG);
+		ooo_write = readl(base + SEC_Q_OUTORDER_WR_PTR_REG);
+		outorder_msg = cq_ring->vaddr + ooo_read;
+		q_id = outorder_msg->data & SEC_OUT_BD_INFO_Q_ID_M;
+		msg = msg_ring->vaddr + q_id;
+	}
+
+	sec_queue_irq_enable(queue);
+
+	return IRQ_HANDLED;
+}
+
+static int sec_queue_irq_init(struct sec_queue *queue)
+{
+	struct sec_dev_info *info = queue->dev_info;
+	int irq = queue->task_irq;
+	int ret;
+
+	ret = request_threaded_irq(irq, sec_isr_handle_th, sec_isr_handle,
+				   IRQF_TRIGGER_RISING, queue->name, queue);
+	if (ret) {
+		dev_err(info->dev, "request irq(%d) failed %d\n", irq, ret);
+		return ret;
+	}
+	disable_irq(irq);
+
+	return 0;
+}
+
+static int sec_queue_irq_uninit(struct sec_queue *queue)
+{
+	free_irq(queue->task_irq, queue);
+
+	return 0;
+}
+
+static struct sec_dev_info *sec_device_get(void)
+{
+	struct sec_dev_info *sec_dev = NULL;
+	struct sec_dev_info *this_sec_dev;
+	int least_busy_n = SEC_Q_NUM + 1;
+	int i;
+
+	/* Find which one is least busy and use that first */
+	for (i = 0; i < SEC_MAX_DEVICES; i++) {
+		this_sec_dev = sec_devices[i];
+		if (this_sec_dev &&
+		    this_sec_dev->queues_in_use < least_busy_n) {
+			least_busy_n = this_sec_dev->queues_in_use;
+			sec_dev = this_sec_dev;
+		}
+	}
+
+	return sec_dev;
+}
+
+static struct sec_queue *sec_queue_alloc_start(struct sec_dev_info *info)
+{
+	struct sec_queue *queue;
+
+	queue = sec_alloc_queue(info);
+	if (IS_ERR(queue)) {
+		dev_err(info->dev, "alloc sec queue failed! %ld\n",
+			PTR_ERR(queue));
+		return queue;
+	}
+
+	sec_queue_start(queue);
+
+	return queue;
+}
+
+/**
+ * sec_queue_alloc_start_safe - get a hw queue from appropriate instance
+ *
+ * This function does extremely simplistic load balancing. It does not take into
+ * account NUMA locality of the accelerator, or which cpu has requested the
+ * queue.  Future work may focus on optimizing this in order to improve full
+ * machine throughput.
+ */
+struct sec_queue *sec_queue_alloc_start_safe(void)
+{
+	struct sec_dev_info *info;
+	struct sec_queue *queue = ERR_PTR(-ENODEV);
+
+	mutex_lock(&sec_id_lock);
+	info = sec_device_get();
+	if (!info)
+		goto unlock;
+
+	queue = sec_queue_alloc_start(info);
+
+unlock:
+	mutex_unlock(&sec_id_lock);
+
+	return queue;
+}
+
+/**
+ * sec_queue_stop_release() - free up a hw queue for reuse
+ * @queue: The queue we are done with.
+ *
+ * This will stop the current queue, terminanting any transactions
+ * that are inflight an return it to the pool of available hw queuess
+ */
+int sec_queue_stop_release(struct sec_queue *queue)
+{
+	struct device *dev = queue->dev_info->dev;
+	int ret;
+
+	sec_queue_stop(queue);
+
+	ret = sec_queue_free(queue);
+	if (ret)
+		dev_err(dev, "Releasing queue failed %d\n", ret);
+
+	return ret;
+}
+
+/**
+ * sec_queue_empty() - Is this hardware queue currently empty.
+ *
+ * We need to know if we have an empty queue for some of the chaining modes
+ * as if it is not empty we may need to hold the message in a software queue
+ * until the hw queue is drained.
+ */
+bool sec_queue_empty(struct sec_queue *queue)
+{
+	struct sec_queue_ring_cmd *msg_ring = &queue->ring_cmd;
+
+	return !atomic_read(&msg_ring->used);
+}
+
+/**
+ * sec_queue_send() - queue up a single operation in the hw queue
+ * @queue: The queue in which to put the message
+ * @msg: The message
+ * @ctx: Context to be put in the shadow array and passed back to cb on result.
+ *
+ * This function will return -EAGAIN if the queue is currently full.
+ */
+int sec_queue_send(struct sec_queue *queue, struct sec_bd_info *msg, void *ctx)
+{
+	struct sec_queue_ring_cmd *msg_ring = &queue->ring_cmd;
+	void __iomem *base = queue->regs;
+	u32 write, read;
+
+	mutex_lock(&msg_ring->lock);
+	read = readl(base + SEC_Q_RD_PTR_REG);
+	write = readl(base + SEC_Q_WR_PTR_REG);
+	if (write == read && atomic_read(&msg_ring->used) == SEC_QUEUE_LEN) {
+		mutex_unlock(&msg_ring->lock);
+		return -EAGAIN;
+	}
+	memcpy(msg_ring->vaddr + write, msg, sizeof(*msg));
+	queue->shadow[write] = ctx;
+	write = (write + 1) % SEC_QUEUE_LEN;
+
+	/* Ensure content updated before queue advance */
+	wmb();
+	writel(write, base + SEC_Q_WR_PTR_REG);
+
+	atomic_inc(&msg_ring->used);
+	mutex_unlock(&msg_ring->lock);
+
+	return 0;
+}
+
+bool sec_queue_can_enqueue(struct sec_queue *queue, int num)
+{
+	struct sec_queue_ring_cmd *msg_ring = &queue->ring_cmd;
+
+	return SEC_QUEUE_LEN - atomic_read(&msg_ring->used) >= num;
+}
+
+static void sec_queue_hw_init(struct sec_queue *queue)
+{
+	sec_queue_ar_alloc(queue, SEC_QUEUE_AR_FROCE_NOALLOC);
+	sec_queue_aw_alloc(queue, SEC_QUEUE_AR_FROCE_NOALLOC);
+	sec_queue_ar_pkgattr(queue, 1);
+	sec_queue_aw_pkgattr(queue, 1);
+
+	/* Enable out of order queue */
+	sec_queue_reorder(queue, true);
+
+	/* Interrupt after a single complete element */
+	writel_relaxed(1, queue->regs + SEC_Q_PROC_NUM_CFG_REG);
+
+	sec_queue_depth(queue, SEC_QUEUE_LEN - 1);
+
+	sec_queue_cmdbase_addr(queue, queue->ring_cmd.paddr);
+
+	sec_queue_outorder_addr(queue, queue->ring_cq.paddr);
+
+	sec_queue_errbase_addr(queue, queue->ring_db.paddr);
+
+	writel_relaxed(0x100, queue->regs + SEC_Q_OT_TH_REG);
+
+	sec_queue_abn_irq_disable(queue);
+	sec_queue_irq_disable(queue);
+	writel_relaxed(SEC_Q_INIT_AND_STAT_CLEAR, queue->regs + SEC_Q_INIT_REG);
+}
+
+static int sec_hw_init(struct sec_dev_info *info)
+{
+	struct iommu_domain *domain;
+	u32 sec_ipv4_mask = 0;
+	u32 sec_ipv6_mask[10] = {};
+	u32 i, ret;
+
+	domain = iommu_get_domain_for_dev(info->dev);
+
+	/*
+	 * Enable all available processing unit clocks.
+	 * Only the first cluster is usable with translations.
+	 */
+	if (domain && (domain->type & __IOMMU_DOMAIN_PAGING))
+		info->num_saas = 5;
+
+	else
+		info->num_saas = 10;
+
+	writel_relaxed(GENMASK(info->num_saas - 1, 0),
+		       info->regs[SEC_SAA] + SEC_CLK_EN_REG);
+
+	/* 32 bit little endian */
+	sec_bd_endian_little(info);
+
+	sec_cache_config(info);
+
+	/* Data axi port write and read outstanding config as per datasheet */
+	sec_data_axiwr_otsd_cfg(info, 0x7);
+	sec_data_axird_otsd_cfg(info, 0x7);
+
+	/* Enable clock gating */
+	sec_clk_gate_en(info, true);
+
+	/* Set CNT_CYC register not read clear */
+	sec_comm_cnt_cfg(info, false);
+
+	/* Enable CNT_CYC */
+	sec_commsnap_en(info, false);
+
+	writel_relaxed((u32)~0, info->regs[SEC_SAA] + SEC_FSM_MAX_CNT_REG);
+
+	ret = sec_ipv4_hashmask(info, sec_ipv4_mask);
+	if (ret) {
+		dev_err(info->dev, "Failed to set ipv4 hashmask %d\n", ret);
+		return -EIO;
+	}
+
+	sec_ipv6_hashmask(info, sec_ipv6_mask);
+
+	/*  do not use debug bd */
+	sec_set_dbg_bd_cfg(info, 0);
+
+	if (domain && (domain->type & __IOMMU_DOMAIN_PAGING)) {
+		for (i = 0; i < SEC_Q_NUM; i++) {
+			sec_streamid(info, i);
+			/* Same QoS for all queues */
+			writel_relaxed(0x3f,
+				       info->regs[SEC_SAA] +
+				       SEC_Q_WEIGHT_CFG_REG(i));
+		}
+	}
+
+	for (i = 0; i < info->num_saas; i++) {
+		sec_saa_getqm_en(info, i, 1);
+		sec_saa_int_mask(info, i, 0);
+	}
+
+	return 0;
+}
+
+static void sec_hw_exit(struct sec_dev_info *info)
+{
+	int i;
+
+	for (i = 0; i < SEC_MAX_SAA_NUM; i++) {
+		sec_saa_int_mask(info, i, (u32)~0);
+		sec_saa_getqm_en(info, i, 0);
+	}
+}
+
+static void sec_queue_base_init(struct sec_dev_info *info,
+				struct sec_queue *queue, int queue_id)
+{
+	queue->dev_info = info;
+	queue->queue_id = queue_id;
+	snprintf(queue->name, sizeof(queue->name),
+		 "%s_%d", dev_name(info->dev), queue->queue_id);
+}
+
+static int sec_map_io(struct sec_dev_info *info, struct platform_device *pdev)
+{
+	struct resource *res;
+	int i;
+
+	for (i = 0; i < SEC_NUM_ADDR_REGIONS; i++) {
+		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+
+		if (!res) {
+			dev_err(info->dev, "Memory resource %d not found\n", i);
+			return -EINVAL;
+		}
+
+		info->regs[i] = devm_ioremap(info->dev, res->start,
+					     resource_size(res));
+		if (!info->regs[i]) {
+			dev_err(info->dev,
+				"Memory resource %d could not be remapped\n",
+				i);
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static int sec_base_init(struct sec_dev_info *info,
+			 struct platform_device *pdev)
+{
+	int ret;
+
+	ret = sec_map_io(info, pdev);
+	if (ret)
+		return ret;
+
+	ret = sec_clk_en(info);
+	if (ret)
+		return ret;
+
+	ret = sec_reset_whole_module(info);
+	if (ret)
+		goto sec_clk_disable;
+
+	ret = sec_hw_init(info);
+	if (ret)
+		goto sec_clk_disable;
+
+	return 0;
+
+sec_clk_disable:
+	sec_clk_dis(info);
+
+	return ret;
+}
+
+static void sec_base_exit(struct sec_dev_info *info)
+{
+	sec_hw_exit(info);
+	sec_clk_dis(info);
+}
+
+#define SEC_Q_CMD_SIZE \
+	round_up(SEC_QUEUE_LEN * sizeof(struct sec_bd_info), PAGE_SIZE)
+#define SEC_Q_CQ_SIZE \
+	round_up(SEC_QUEUE_LEN * sizeof(struct sec_out_bd_info), PAGE_SIZE)
+#define SEC_Q_DB_SIZE \
+	round_up(SEC_QUEUE_LEN * sizeof(struct sec_debug_bd_info), PAGE_SIZE)
+
+static int sec_queue_res_cfg(struct sec_queue *queue)
+{
+	struct device *dev = queue->dev_info->dev;
+	struct sec_queue_ring_cmd *ring_cmd = &queue->ring_cmd;
+	struct sec_queue_ring_cq *ring_cq = &queue->ring_cq;
+	struct sec_queue_ring_db *ring_db = &queue->ring_db;
+	int ret;
+
+	ring_cmd->vaddr = dma_zalloc_coherent(dev, SEC_Q_CMD_SIZE,
+					      &ring_cmd->paddr,
+					      GFP_KERNEL);
+	if (!ring_cmd->vaddr)
+		return -ENOMEM;
+
+	atomic_set(&ring_cmd->used, 0);
+	mutex_init(&ring_cmd->lock);
+	ring_cmd->callback = sec_alg_callback;
+
+	ring_cq->vaddr = dma_zalloc_coherent(dev, SEC_Q_CQ_SIZE,
+					     &ring_cq->paddr,
+					     GFP_KERNEL);
+	if (!ring_cq->vaddr) {
+		ret = -ENOMEM;
+		goto err_free_ring_cmd;
+	}
+
+	ring_db->vaddr = dma_zalloc_coherent(dev, SEC_Q_DB_SIZE,
+					     &ring_db->paddr,
+					     GFP_KERNEL);
+	if (!ring_db->vaddr) {
+		ret = -ENOMEM;
+		goto err_free_ring_cq;
+	}
+	queue->task_irq = platform_get_irq(to_platform_device(dev),
+					   queue->queue_id * 2 + 1);
+	if (queue->task_irq <= 0) {
+		ret = -EINVAL;
+		goto err_free_ring_db;
+	}
+
+	return 0;
+
+err_free_ring_db:
+	dma_free_coherent(dev, SEC_Q_DB_SIZE, queue->ring_db.vaddr,
+			  queue->ring_db.paddr);
+err_free_ring_cq:
+	dma_free_coherent(dev, SEC_Q_CQ_SIZE, queue->ring_cq.vaddr,
+			  queue->ring_cq.paddr);
+err_free_ring_cmd:
+	dma_free_coherent(dev, SEC_Q_CMD_SIZE, queue->ring_cmd.vaddr,
+			  queue->ring_cmd.paddr);
+
+	return ret;
+}
+
+static void sec_queue_free_ring_pages(struct sec_queue *queue)
+{
+	struct device *dev = queue->dev_info->dev;
+
+	dma_free_coherent(dev, SEC_Q_DB_SIZE, queue->ring_db.vaddr,
+			  queue->ring_db.paddr);
+	dma_free_coherent(dev, SEC_Q_CQ_SIZE, queue->ring_cq.vaddr,
+			  queue->ring_cq.paddr);
+	dma_free_coherent(dev, SEC_Q_CMD_SIZE, queue->ring_cmd.vaddr,
+			  queue->ring_cmd.paddr);
+}
+
+static int sec_queue_config(struct sec_dev_info *info, struct sec_queue *queue,
+			    int queue_id)
+{
+	int ret;
+
+	sec_queue_base_init(info, queue, queue_id);
+
+	ret = sec_queue_res_cfg(queue);
+	if (ret)
+		return ret;
+
+	ret = sec_queue_map_io(queue);
+	if (ret) {
+		dev_err(info->dev, "Queue map failed %d\n", ret);
+		sec_queue_free_ring_pages(queue);
+		return ret;
+	}
+
+	sec_queue_hw_init(queue);
+
+	return 0;
+}
+
+static void sec_queue_unconfig(struct sec_dev_info *info,
+			       struct sec_queue *queue)
+{
+	sec_queue_unmap_io(queue);
+	sec_queue_free_ring_pages(queue);
+}
+
+static int sec_id_alloc(struct sec_dev_info *info)
+{
+	int ret = 0;
+	int i;
+
+	mutex_lock(&sec_id_lock);
+
+	for (i = 0; i < SEC_MAX_DEVICES; i++)
+		if (!sec_devices[i])
+			break;
+	if (i == SEC_MAX_DEVICES) {
+		ret = -ENOMEM;
+		goto unlock;
+	}
+	info->sec_id = i;
+	sec_devices[info->sec_id] = info;
+
+unlock:
+	mutex_unlock(&sec_id_lock);
+
+	return ret;
+}
+
+static void sec_id_free(struct sec_dev_info *info)
+{
+	mutex_lock(&sec_id_lock);
+	sec_devices[info->sec_id] = NULL;
+	mutex_unlock(&sec_id_lock);
+}
+
+static int sec_probe(struct platform_device *pdev)
+{
+	struct sec_dev_info *info;
+	struct device *dev = &pdev->dev;
+	int i, j;
+	int ret;
+
+	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
+	if (ret) {
+		dev_err(dev, "Failed to set 64 bit dma mask %d", ret);
+		return -ENODEV;
+	}
+
+	info = devm_kzalloc(dev, (sizeof(*info)), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	info->dev = dev;
+	mutex_init(&info->dev_lock);
+
+	info->hw_sgl_pool = dmam_pool_create("sgl", dev,
+					     sizeof(struct sec_hw_sgl), 64, 0);
+	if (!info->hw_sgl_pool) {
+		dev_err(dev, "Failed to create sec sgl dma pool\n");
+		return -ENOMEM;
+	}
+
+	ret = sec_base_init(info, pdev);
+	if (ret) {
+		dev_err(dev, "Base initialization fail! %d\n", ret);
+		return ret;
+	}
+
+	for (i = 0; i < SEC_Q_NUM; i++) {
+		ret = sec_queue_config(info, &info->queues[i], i);
+		if (ret)
+			goto queues_unconfig;
+
+		ret = sec_queue_irq_init(&info->queues[i]);
+		if (ret) {
+			sec_queue_unconfig(info, &info->queues[i]);
+			goto queues_unconfig;
+		}
+	}
+
+	ret = sec_algs_register();
+	if (ret) {
+		dev_err(dev, "Failed to register algorithms with crypto %d\n",
+			ret);
+		goto queues_unconfig;
+	}
+
+	platform_set_drvdata(pdev, info);
+
+	ret = sec_id_alloc(info);
+	if (ret)
+		goto algs_unregister;
+
+	return 0;
+
+algs_unregister:
+	sec_algs_unregister();
+queues_unconfig:
+	for (j = i - 1; j >= 0; j--) {
+		sec_queue_irq_uninit(&info->queues[j]);
+		sec_queue_unconfig(info, &info->queues[j]);
+	}
+	sec_base_exit(info);
+
+	return ret;
+}
+
+static int sec_remove(struct platform_device *pdev)
+{
+	struct sec_dev_info *info = platform_get_drvdata(pdev);
+	int i;
+
+	/* Unexpose as soon as possible, reuse during remove is fine */
+	sec_id_free(info);
+
+	sec_algs_unregister();
+
+	for (i = 0; i < SEC_Q_NUM; i++) {
+		sec_queue_irq_uninit(&info->queues[i]);
+		sec_queue_unconfig(info, &info->queues[i]);
+	}
+
+	sec_base_exit(info);
+
+	return 0;
+}
+
+static const __maybe_unused struct of_device_id sec_match[] = {
+	{ .compatible = "hisilicon,hip06-sec" },
+	{ .compatible = "hisilicon,hip07-sec" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, sec_match);
+
+static const __maybe_unused struct acpi_device_id sec_acpi_match[] = {
+	{ "HISI02C1", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, sec_acpi_match);
+
+static struct platform_driver sec_driver = {
+	.probe = sec_probe,
+	.remove = sec_remove,
+	.driver = {
+		.name = "hisi_sec_platform_driver",
+		.of_match_table = sec_match,
+		.acpi_match_table = ACPI_PTR(sec_acpi_match),
+	},
+};
+module_platform_driver(sec_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Hisilicon Security Accelerators");
+MODULE_AUTHOR("Zaibo Xu <xuzaibo@huawei.com");
+MODULE_AUTHOR("Jonathan Cameron <jonathan.cameron@huawei.com>");