[PATCH 3/3] crypto: hisilicon/sec - register SEC device to uacce

From: Kai Ye
Date: Tue Jan 05 2021 - 01:19:47 EST


Register SEC device to uacce framework for user space.

Signed-off-by: Kai Ye <yekai13@xxxxxxxxxx>
Reviewed-by: Zhou Wang <wangzhou1@xxxxxxxxxxxxx>
Reviewed-by: Zaibo Xu <xuzaibo@xxxxxxxxxx>
---
drivers/crypto/hisilicon/sec2/sec_main.c | 39 +++++++++++++++++++++++++++++++-
1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/hisilicon/sec2/sec_main.c b/drivers/crypto/hisilicon/sec2/sec_main.c
index b35c1c2..4809c19 100644
--- a/drivers/crypto/hisilicon/sec2/sec_main.c
+++ b/drivers/crypto/hisilicon/sec2/sec_main.c
@@ -13,6 +13,7 @@
#include <linux/pci.h>
#include <linux/seq_file.h>
#include <linux/topology.h>
+#include <linux/uacce.h>

#include "sec.h"

@@ -74,6 +75,16 @@

#define SEC_USER0_SMMU_NORMAL (BIT(23) | BIT(15))
#define SEC_USER1_SMMU_NORMAL (BIT(31) | BIT(23) | BIT(15) | BIT(7))
+#define SEC_USER1_ENABLE_CONTEXT_SSV BIT(24)
+#define SEC_USER1_ENABLE_DATA_SSV BIT(16)
+#define SEC_USER1_WB_CONTEXT_SSV BIT(8)
+#define SEC_USER1_WB_DATA_SSV BIT(0)
+#define SEC_USER1_SVA_SET (SEC_USER1_ENABLE_CONTEXT_SSV | \
+ SEC_USER1_ENABLE_DATA_SSV | \
+ SEC_USER1_WB_CONTEXT_SSV | \
+ SEC_USER1_WB_DATA_SSV)
+#define SEC_USER1_SMMU_SVA (SEC_USER1_SMMU_NORMAL | SEC_USER1_SVA_SET)
+#define SEC_USER1_SMMU_MASK (~SEC_USER1_SVA_SET)
#define SEC_CORE_INT_STATUS_M_ECC BIT(2)

#define SEC_DELAY_10_US 10
@@ -233,6 +244,18 @@ struct hisi_qp **sec_create_qps(void)
return NULL;
}

+static const struct kernel_param_ops sec_uacce_mode_ops = {
+ .set = uacce_mode_set,
+ .get = param_get_int,
+};
+
+/*
+ * uacce_mode = 0 means sec only register to crypto,
+ * uacce_mode = 1 means sec both register to crypto and uacce.
+ */
+static u32 uacce_mode = UACCE_MODE_NOUACCE;
+module_param_cb(uacce_mode, &sec_uacce_mode_ops, &uacce_mode, 0444);
+MODULE_PARM_DESC(uacce_mode, UACCE_MODE_DESC);

static const struct pci_device_id sec_dev_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, SEC_PF_PCI_DEVICE_ID) },
@@ -299,7 +322,11 @@ static int sec_engine_init(struct hisi_qm *qm)
writel_relaxed(reg, SEC_ADDR(qm, SEC_INTERFACE_USER_CTRL0_REG));

reg = readl_relaxed(SEC_ADDR(qm, SEC_INTERFACE_USER_CTRL1_REG));
- reg |= SEC_USER1_SMMU_NORMAL;
+ reg &= SEC_USER1_SMMU_MASK;
+ if (qm->use_sva)
+ reg |= SEC_USER1_SMMU_SVA;
+ else
+ reg |= SEC_USER1_SMMU_NORMAL;
writel_relaxed(reg, SEC_ADDR(qm, SEC_INTERFACE_USER_CTRL1_REG));

writel(SEC_SINGLE_PORT_MAX_TRANS,
@@ -758,6 +785,8 @@ static int sec_qm_init(struct hisi_qm *qm, struct pci_dev *pdev)

qm->pdev = pdev;
qm->ver = pdev->revision;
+ qm->algs = "cipher\ndigest\naead\n";
+ qm->mode = uacce_mode;
qm->sqe_size = SEC_SQE_SIZE;
qm->dev_name = sec_name;

@@ -885,6 +914,14 @@ static int sec_probe(struct pci_dev *pdev, const struct pci_device_id *id)
goto err_qm_stop;
}

+ if (qm->uacce) {
+ ret = uacce_register(qm->uacce);
+ if (ret) {
+ pci_err(pdev, "failed to register uacce (%d)!\n", ret);
+ goto err_alg_unregister;
+ }
+ }
+
if (qm->fun_type == QM_HW_PF && vfs_num) {
ret = hisi_qm_sriov_enable(pdev, vfs_num);
if (ret < 0)
--
2.8.1