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Subject[PATCH 5/6] crypto: hisilicon/qm - do not reset hardware when CE happens
Date
There is no need to reset hardware when Corrected Error(CE) happens.

Signed-off-by: Weili Qian <qianweili@huawei.com>
Reviewed-by: Zaibo Xu <xuzaibo@huawei.com>
---
drivers/crypto/hisilicon/hpre/hpre_main.c | 1 +
drivers/crypto/hisilicon/qm.c | 23 +++++++++++++++++------
drivers/crypto/hisilicon/qm.h | 1 +
drivers/crypto/hisilicon/sec2/sec_main.c | 1 +
drivers/crypto/hisilicon/zip/zip_main.c | 5 ++++-
5 files changed, 24 insertions(+), 7 deletions(-)

diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c
index ef2fe4d..6681e9a 100644
--- a/drivers/crypto/hisilicon/hpre/hpre_main.c
+++ b/drivers/crypto/hisilicon/hpre/hpre_main.c
@@ -848,6 +848,7 @@ static const struct hisi_qm_err_ini hpre_err_ini = {
.fe = 0,
.ecc_2bits_mask = HPRE_CORE_ECC_2BIT_ERR |
HPRE_OOO_ECC_2BIT_ERR,
+ .dev_ce_mask = HPRE_HAC_RAS_CE_ENABLE,
.msi_wr_port = HPRE_WR_MSI_PORT,
.acpi_rst = "HRST",
}
diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index ec7d068..5dbc054 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -1610,7 +1610,7 @@ static void qm_log_hw_error(struct hisi_qm *qm, u32 error_status)

static enum acc_err_result qm_hw_error_handle_v2(struct hisi_qm *qm)
{
- u32 error_status, tmp;
+ u32 error_status, tmp, val;

/* read err sts */
tmp = readl(qm->io_base + QM_ABNORMAL_INT_STATUS);
@@ -1621,9 +1621,13 @@ static enum acc_err_result qm_hw_error_handle_v2(struct hisi_qm *qm)
qm->err_status.is_qm_ecc_mbit = true;

qm_log_hw_error(qm, error_status);
- if (error_status == QM_DB_RANDOM_INVALID) {
+ val = error_status | QM_DB_RANDOM_INVALID | QM_BASE_CE;
+ /* ce error does not need to be reset */
+ if (val == (QM_DB_RANDOM_INVALID | QM_BASE_CE)) {
writel(error_status, qm->io_base +
QM_ABNORMAL_INT_SOURCE);
+ writel(qm->err_ini->err_info.nfe,
+ qm->io_base + QM_RAS_NFE_ENABLE);
return ACC_ERR_RECOVERED;
}

@@ -3302,12 +3306,19 @@ static enum acc_err_result qm_dev_err_handle(struct hisi_qm *qm)
if (err_sts & qm->err_ini->err_info.ecc_2bits_mask)
qm->err_status.is_dev_ecc_mbit = true;

- if (!qm->err_ini->log_dev_hw_err) {
- dev_err(&qm->pdev->dev, "Device doesn't support log hw error!\n");
- return ACC_ERR_NEED_RESET;
+ if (qm->err_ini->log_dev_hw_err)
+ qm->err_ini->log_dev_hw_err(qm, err_sts);
+
+ /* ce error does not need to be reset */
+ if ((err_sts | qm->err_ini->err_info.dev_ce_mask) ==
+ qm->err_ini->err_info.dev_ce_mask) {
+ if (qm->err_ini->clear_dev_hw_err_status)
+ qm->err_ini->clear_dev_hw_err_status(qm,
+ err_sts);
+
+ return ACC_ERR_RECOVERED;
}

- qm->err_ini->log_dev_hw_err(qm, err_sts);
return ACC_ERR_NEED_RESET;
}

diff --git a/drivers/crypto/hisilicon/qm.h b/drivers/crypto/hisilicon/qm.h
index c08ffe3..6be5338 100644
--- a/drivers/crypto/hisilicon/qm.h
+++ b/drivers/crypto/hisilicon/qm.h
@@ -173,6 +173,7 @@ struct hisi_qm_err_info {
char *acpi_rst;
u32 msi_wr_port;
u32 ecc_2bits_mask;
+ u32 dev_ce_mask;
u32 ce;
u32 nfe;
u32 fe;
diff --git a/drivers/crypto/hisilicon/sec2/sec_main.c b/drivers/crypto/hisilicon/sec2/sec_main.c
index 7db0e86..73866f2 100644
--- a/drivers/crypto/hisilicon/sec2/sec_main.c
+++ b/drivers/crypto/hisilicon/sec2/sec_main.c
@@ -752,6 +752,7 @@ static const struct hisi_qm_err_ini sec_err_ini = {
QM_ACC_WB_NOT_READY_TIMEOUT,
.fe = 0,
.ecc_2bits_mask = SEC_CORE_INT_STATUS_M_ECC,
+ .dev_ce_mask = SEC_RAS_CE_ENB_MSK,
.msi_wr_port = BIT(0),
.acpi_rst = "SRST",
}
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c
index c5609f4..ca02e9c 100644
--- a/drivers/crypto/hisilicon/zip/zip_main.c
+++ b/drivers/crypto/hisilicon/zip/zip_main.c
@@ -66,6 +66,7 @@
#define HZIP_CORE_INT_STATUS_M_ECC BIT(1)
#define HZIP_CORE_SRAM_ECC_ERR_INFO 0x301148
#define HZIP_CORE_INT_RAS_CE_ENB 0x301160
+#define HZIP_CORE_INT_RAS_CE_ENABLE 0x1
#define HZIP_CORE_INT_RAS_NFE_ENB 0x301164
#define HZIP_CORE_INT_RAS_FE_ENB 0x301168
#define HZIP_CORE_INT_RAS_NFE_ENABLE 0x7FE
@@ -327,7 +328,8 @@ static void hisi_zip_hw_error_enable(struct hisi_qm *qm)
writel(HZIP_CORE_INT_MASK_ALL, qm->io_base + HZIP_CORE_INT_SOURCE);

/* configure error type */
- writel(0x1, qm->io_base + HZIP_CORE_INT_RAS_CE_ENB);
+ writel(HZIP_CORE_INT_RAS_CE_ENABLE,
+ qm->io_base + HZIP_CORE_INT_RAS_CE_ENB);
writel(0x0, qm->io_base + HZIP_CORE_INT_RAS_FE_ENB);
writel(HZIP_CORE_INT_RAS_NFE_ENABLE,
qm->io_base + HZIP_CORE_INT_RAS_NFE_ENB);
@@ -727,6 +729,7 @@ static const struct hisi_qm_err_ini hisi_zip_err_ini = {
QM_ACC_WB_NOT_READY_TIMEOUT,
.fe = 0,
.ecc_2bits_mask = HZIP_CORE_INT_STATUS_M_ECC,
+ .dev_ce_mask = HZIP_CORE_INT_RAS_CE_ENABLE,
.msi_wr_port = HZIP_WR_PORT,
.acpi_rst = "ZRST",
}
--
2.8.1
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