1 files changed, 160 insertions, 69 deletions

diff --git a/drivers/crypto/hisilicon/sec2/sec_main.c b/drivers/crypto/hisilicon/sec2/sec_main.c
index 72cf48d1f3ab..5eb2d6820742 100644
--- a/drivers/crypto/hisilicon/sec2/sec_main.c
+++ b/drivers/crypto/hisilicon/sec2/sec_main.c
@@ -47,6 +47,8 @@
 #define SEC_RAS_FE_ENB_MSK		0x0
 #define SEC_OOO_SHUTDOWN_SEL		0x301014
 #define SEC_RAS_DISABLE		0x0
+#define SEC_AXI_ERROR_MASK		(BIT(0) | BIT(1))
+
 #define SEC_MEM_START_INIT_REG	0x301100
 #define SEC_MEM_INIT_DONE_REG		0x301104
 
@@ -93,6 +95,16 @@
 #define SEC_PREFETCH_ENABLE		(~(BIT(0) | BIT(1) | BIT(11)))
 #define SEC_PREFETCH_DISABLE		BIT(1)
 #define SEC_SVA_DISABLE_READY		(BIT(7) | BIT(11))
+#define SEC_SVA_PREFETCH_INFO		0x301ED4
+#define SEC_SVA_STALL_NUM		GENMASK(23, 8)
+#define SEC_SVA_PREFETCH_NUM		GENMASK(2, 0)
+#define SEC_WAIT_SVA_READY		500000
+#define SEC_READ_SVA_STATUS_TIMES	3
+#define SEC_WAIT_US_MIN			10
+#define SEC_WAIT_US_MAX			20
+#define SEC_WAIT_QP_US_MIN		1000
+#define SEC_WAIT_QP_US_MAX		2000
+#define SEC_MAX_WAIT_TIMES		2000
 
 #define SEC_DELAY_10_US			10
 #define SEC_POLL_TIMEOUT_US		1000
@@ -464,6 +476,81 @@ static void sec_set_endian(struct hisi_qm *qm)
 	writel_relaxed(reg, qm->io_base + SEC_CONTROL_REG);
 }
 
+static int sec_wait_sva_ready(struct hisi_qm *qm, __u32 offset, __u32 mask)
+{
+	u32 val, try_times = 0;
+	u8 count = 0;
+
+	/*
+	 * Read the register value every 10-20us. If the value is 0 for three
+	 * consecutive times, the SVA module is ready.
+	 */
+	do {
+		val = readl(qm->io_base + offset);
+		if (val & mask)
+			count = 0;
+		else if (++count == SEC_READ_SVA_STATUS_TIMES)
+			break;
+
+		usleep_range(SEC_WAIT_US_MIN, SEC_WAIT_US_MAX);
+	} while (++try_times < SEC_WAIT_SVA_READY);
+
+	if (try_times == SEC_WAIT_SVA_READY) {
+		pci_err(qm->pdev, "failed to wait sva prefetch ready\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static void sec_close_sva_prefetch(struct hisi_qm *qm)
+{
+	u32 val;
+	int ret;
+
+	if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps))
+		return;
+
+	val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG);
+	val |= SEC_PREFETCH_DISABLE;
+	writel(val, qm->io_base + SEC_PREFETCH_CFG);
+
+	ret = readl_relaxed_poll_timeout(qm->io_base + SEC_SVA_TRANS,
+					 val, !(val & SEC_SVA_DISABLE_READY),
+					 SEC_DELAY_10_US, SEC_POLL_TIMEOUT_US);
+	if (ret)
+		pci_err(qm->pdev, "failed to close sva prefetch\n");
+
+	(void)sec_wait_sva_ready(qm, SEC_SVA_PREFETCH_INFO, SEC_SVA_STALL_NUM);
+}
+
+static void sec_open_sva_prefetch(struct hisi_qm *qm)
+{
+	u32 val;
+	int ret;
+
+	if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps))
+		return;
+
+	/* Enable prefetch */
+	val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG);
+	val &= SEC_PREFETCH_ENABLE;
+	writel(val, qm->io_base + SEC_PREFETCH_CFG);
+
+	ret = readl_relaxed_poll_timeout(qm->io_base + SEC_PREFETCH_CFG,
+					 val, !(val & SEC_PREFETCH_DISABLE),
+					 SEC_DELAY_10_US, SEC_POLL_TIMEOUT_US);
+	if (ret) {
+		pci_err(qm->pdev, "failed to open sva prefetch\n");
+		sec_close_sva_prefetch(qm);
+		return;
+	}
+
+	ret = sec_wait_sva_ready(qm, SEC_SVA_TRANS, SEC_SVA_PREFETCH_NUM);
+	if (ret)
+		sec_close_sva_prefetch(qm);
+}
+
 static void sec_engine_sva_config(struct hisi_qm *qm)
 {
 	u32 reg;
@@ -497,45 +584,7 @@ static void sec_engine_sva_config(struct hisi_qm *qm)
 		writel_relaxed(reg, qm->io_base +
 				SEC_INTERFACE_USER_CTRL1_REG);
 	}
-}
-
-static void sec_open_sva_prefetch(struct hisi_qm *qm)
-{
-	u32 val;
-	int ret;
-
-	if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps))
-		return;
-
-	/* Enable prefetch */
-	val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG);
-	val &= SEC_PREFETCH_ENABLE;
-	writel(val, qm->io_base + SEC_PREFETCH_CFG);
-
-	ret = readl_relaxed_poll_timeout(qm->io_base + SEC_PREFETCH_CFG,
-					 val, !(val & SEC_PREFETCH_DISABLE),
-					 SEC_DELAY_10_US, SEC_POLL_TIMEOUT_US);
-	if (ret)
-		pci_err(qm->pdev, "failed to open sva prefetch\n");
-}
-
-static void sec_close_sva_prefetch(struct hisi_qm *qm)
-{
-	u32 val;
-	int ret;
-
-	if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps))
-		return;
-
-	val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG);
-	val |= SEC_PREFETCH_DISABLE;
-	writel(val, qm->io_base + SEC_PREFETCH_CFG);
-
-	ret = readl_relaxed_poll_timeout(qm->io_base + SEC_SVA_TRANS,
-					 val, !(val & SEC_SVA_DISABLE_READY),
-					 SEC_DELAY_10_US, SEC_POLL_TIMEOUT_US);
-	if (ret)
-		pci_err(qm->pdev, "failed to close sva prefetch\n");
+	sec_open_sva_prefetch(qm);
 }
 
 static void sec_enable_clock_gate(struct hisi_qm *qm)
@@ -666,8 +715,7 @@ static void sec_master_ooo_ctrl(struct hisi_qm *qm, bool enable)
 	val1 = readl(qm->io_base + SEC_CONTROL_REG);
 	if (enable) {
 		val1 |= SEC_AXI_SHUTDOWN_ENABLE;
-		val2 = hisi_qm_get_hw_info(qm, sec_basic_info,
-					   SEC_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver);
+		val2 = qm->err_info.dev_err.shutdown_mask;
 	} else {
 		val1 &= SEC_AXI_SHUTDOWN_DISABLE;
 		val2 = 0x0;
@@ -681,7 +729,8 @@ static void sec_master_ooo_ctrl(struct hisi_qm *qm, bool enable)
 
 static void sec_hw_error_enable(struct hisi_qm *qm)
 {
-	u32 ce, nfe;
+	struct hisi_qm_err_mask *dev_err = &qm->err_info.dev_err;
+	u32 err_mask = dev_err->ce | dev_err->nfe | dev_err->fe;
 
 	if (qm->ver == QM_HW_V1) {
 		writel(SEC_CORE_INT_DISABLE, qm->io_base + SEC_CORE_INT_MASK);
@@ -689,22 +738,19 @@ static void sec_hw_error_enable(struct hisi_qm *qm)
 		return;
 	}
 
-	ce = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_CE_MASK_CAP, qm->cap_ver);
-	nfe = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_NFE_MASK_CAP, qm->cap_ver);
-
 	/* clear SEC hw error source if having */
-	writel(ce | nfe | SEC_RAS_FE_ENB_MSK, qm->io_base + SEC_CORE_INT_SOURCE);
+	writel(err_mask, qm->io_base + SEC_CORE_INT_SOURCE);
 
 	/* enable RAS int */
-	writel(ce, qm->io_base + SEC_RAS_CE_REG);
-	writel(SEC_RAS_FE_ENB_MSK, qm->io_base + SEC_RAS_FE_REG);
-	writel(nfe, qm->io_base + SEC_RAS_NFE_REG);
+	writel(dev_err->ce, qm->io_base + SEC_RAS_CE_REG);
+	writel(dev_err->fe, qm->io_base + SEC_RAS_FE_REG);
+	writel(dev_err->nfe, qm->io_base + SEC_RAS_NFE_REG);
 
 	/* enable SEC block master OOO when nfe occurs on Kunpeng930 */
 	sec_master_ooo_ctrl(qm, true);
 
 	/* enable SEC hw error interrupts */
-	writel(ce | nfe | SEC_RAS_FE_ENB_MSK, qm->io_base + SEC_CORE_INT_MASK);
+	writel(err_mask, qm->io_base + SEC_CORE_INT_MASK);
 }
 
 static void sec_hw_error_disable(struct hisi_qm *qm)
@@ -1061,12 +1107,20 @@ static void sec_clear_hw_err_status(struct hisi_qm *qm, u32 err_sts)
 
 static void sec_disable_error_report(struct hisi_qm *qm, u32 err_type)
 {
-	u32 nfe_mask;
+	u32 nfe_mask = qm->err_info.dev_err.nfe;
 
-	nfe_mask = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_NFE_MASK_CAP, qm->cap_ver);
 	writel(nfe_mask & (~err_type), qm->io_base + SEC_RAS_NFE_REG);
 }
 
+static void sec_enable_error_report(struct hisi_qm *qm)
+{
+	u32 nfe_mask = qm->err_info.dev_err.nfe;
+	u32 ce_mask = qm->err_info.dev_err.ce;
+
+	writel(nfe_mask, qm->io_base + SEC_RAS_NFE_REG);
+	writel(ce_mask, qm->io_base + SEC_RAS_CE_REG);
+}
+
 static void sec_open_axi_master_ooo(struct hisi_qm *qm)
 {
 	u32 val;
@@ -1082,16 +1136,18 @@ static enum acc_err_result sec_get_err_result(struct hisi_qm *qm)
 
 	err_status = sec_get_hw_err_status(qm);
 	if (err_status) {
-		if (err_status & qm->err_info.ecc_2bits_mask)
+		if (err_status & qm->err_info.dev_err.ecc_2bits_mask)
 			qm->err_status.is_dev_ecc_mbit = true;
 		sec_log_hw_error(qm, err_status);
 
-		if (err_status & qm->err_info.dev_reset_mask) {
+		if (err_status & qm->err_info.dev_err.reset_mask) {
 			/* Disable the same error reporting until device is recovered. */
 			sec_disable_error_report(qm, err_status);
 			return ACC_ERR_NEED_RESET;
 		}
 		sec_clear_hw_err_status(qm, err_status);
+		/* Avoid firmware disable error report, re-enable. */
+		sec_enable_error_report(qm);
 	}
 
 	return ACC_ERR_RECOVERED;
@@ -1102,28 +1158,62 @@ static bool sec_dev_is_abnormal(struct hisi_qm *qm)
 	u32 err_status;
 
 	err_status = sec_get_hw_err_status(qm);
-	if (err_status & qm->err_info.dev_shutdown_mask)
+	if (err_status & qm->err_info.dev_err.shutdown_mask)
 		return true;
 
 	return false;
 }
 
+static void sec_disable_axi_error(struct hisi_qm *qm)
+{
+	struct hisi_qm_err_mask *dev_err = &qm->err_info.dev_err;
+	u32 err_mask = dev_err->ce | dev_err->nfe | dev_err->fe;
+
+	writel(err_mask & ~SEC_AXI_ERROR_MASK, qm->io_base + SEC_CORE_INT_MASK);
+
+	if (qm->ver > QM_HW_V2)
+		writel(dev_err->shutdown_mask & (~SEC_AXI_ERROR_MASK),
+		       qm->io_base + SEC_OOO_SHUTDOWN_SEL);
+}
+
+static void sec_enable_axi_error(struct hisi_qm *qm)
+{
+	struct hisi_qm_err_mask *dev_err = &qm->err_info.dev_err;
+	u32 err_mask = dev_err->ce | dev_err->nfe | dev_err->fe;
+
+	/* clear axi error source */
+	writel(SEC_AXI_ERROR_MASK, qm->io_base + SEC_CORE_INT_SOURCE);
+
+	writel(err_mask, qm->io_base + SEC_CORE_INT_MASK);
+
+	if (qm->ver > QM_HW_V2)
+		writel(dev_err->shutdown_mask, qm->io_base + SEC_OOO_SHUTDOWN_SEL);
+}
+
 static void sec_err_info_init(struct hisi_qm *qm)
 {
 	struct hisi_qm_err_info *err_info = &qm->err_info;
+	struct hisi_qm_err_mask *qm_err = &err_info->qm_err;
+	struct hisi_qm_err_mask *dev_err = &err_info->dev_err;
+
+	qm_err->fe = SEC_RAS_FE_ENB_MSK;
+	qm_err->ce = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_QM_CE_MASK_CAP, qm->cap_ver);
+	qm_err->nfe = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_QM_NFE_MASK_CAP, qm->cap_ver);
+	qm_err->shutdown_mask = hisi_qm_get_hw_info(qm, sec_basic_info,
+						    SEC_QM_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver);
+	qm_err->reset_mask = hisi_qm_get_hw_info(qm, sec_basic_info,
+						 SEC_QM_RESET_MASK_CAP, qm->cap_ver);
+	qm_err->ecc_2bits_mask = QM_ECC_MBIT;
+
+	dev_err->fe = SEC_RAS_FE_ENB_MSK;
+	dev_err->ce = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_CE_MASK_CAP, qm->cap_ver);
+	dev_err->nfe = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_NFE_MASK_CAP, qm->cap_ver);
+	dev_err->shutdown_mask = hisi_qm_get_hw_info(qm, sec_basic_info,
+						     SEC_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver);
+	dev_err->reset_mask = hisi_qm_get_hw_info(qm, sec_basic_info,
+						  SEC_RESET_MASK_CAP, qm->cap_ver);
+	dev_err->ecc_2bits_mask = SEC_CORE_INT_STATUS_M_ECC;
 
-	err_info->fe = SEC_RAS_FE_ENB_MSK;
-	err_info->ce = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_QM_CE_MASK_CAP, qm->cap_ver);
-	err_info->nfe = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_QM_NFE_MASK_CAP, qm->cap_ver);
-	err_info->ecc_2bits_mask = SEC_CORE_INT_STATUS_M_ECC;
-	err_info->qm_shutdown_mask = hisi_qm_get_hw_info(qm, sec_basic_info,
-				     SEC_QM_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver);
-	err_info->dev_shutdown_mask = hisi_qm_get_hw_info(qm, sec_basic_info,
-			SEC_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver);
-	err_info->qm_reset_mask = hisi_qm_get_hw_info(qm, sec_basic_info,
-			SEC_QM_RESET_MASK_CAP, qm->cap_ver);
-	err_info->dev_reset_mask = hisi_qm_get_hw_info(qm, sec_basic_info,
-			SEC_RESET_MASK_CAP, qm->cap_ver);
 	err_info->msi_wr_port = BIT(0);
 	err_info->acpi_rst = "SRST";
 }
@@ -1141,6 +1231,8 @@ static const struct hisi_qm_err_ini sec_err_ini = {
 	.err_info_init		= sec_err_info_init,
 	.get_err_result		= sec_get_err_result,
 	.dev_is_abnormal        = sec_dev_is_abnormal,
+	.disable_axi_error	= sec_disable_axi_error,
+	.enable_axi_error	= sec_enable_axi_error,
 };
 
 static int sec_pf_probe_init(struct sec_dev *sec)
@@ -1152,7 +1244,6 @@ static int sec_pf_probe_init(struct sec_dev *sec)
 	if (ret)
 		return ret;
 
-	sec_open_sva_prefetch(qm);
 	hisi_qm_dev_err_init(qm);
 	sec_debug_regs_clear(qm);
 	ret = sec_show_last_regs_init(qm);
@@ -1169,7 +1260,7 @@ static int sec_pre_store_cap_reg(struct hisi_qm *qm)
 	size_t i, size;
 
 	size = ARRAY_SIZE(sec_cap_query_info);
-	sec_cap = devm_kzalloc(&pdev->dev, sizeof(*sec_cap) * size, GFP_KERNEL);
+	sec_cap = devm_kcalloc(&pdev->dev, size, sizeof(*sec_cap), GFP_KERNEL);
 	if (!sec_cap)
 		return -ENOMEM;