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Subject[PATCH 3/3] EDAC: synopsys: Add useful output information for 64 bit systems
Date
Now the synopsys_edac driver only support to output the 32-bit error
data, but for 64 bit systems, such as i.MX8MP, 64 bit error data is
needed. At the same time, when CE/UE happens, syndrome data is also
useful to showed to user. So here add data_high and syndrome data for
64-bit systems.

And in order to distinguish 64-bit systems and other systems, here
adjust the position of the zynqmp_get_dtype(), so we can called
this function to distinguish it. To ensure that functions of the same
function are in the same position, here adjust the position of the
zynq_get_dtype() too.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
---
drivers/edac/synopsys_edac.c | 182 ++++++++++++++++++++---------------
1 file changed, 102 insertions(+), 80 deletions(-)

diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c
index ef7e907c7956..ae541efefeb8 100644
--- a/drivers/edac/synopsys_edac.c
+++ b/drivers/edac/synopsys_edac.c
@@ -278,18 +278,22 @@
* @col: Column number.
* @bank: Bank number.
* @bitpos: Bit position.
- * @data: Data causing the error.
+ * @data_low: Low bit data causing the error.
+ * @data_high: High bit data causing the error(used for 64 bit systems).
* @bankgrpnr: Bank group number.
* @blknr: Block number.
+ * @syndrome: Syndrome of the error.
*/
struct ecc_error_info {
u32 row;
u32 col;
u32 bank;
u32 bitpos;
- u32 data;
+ u32 data_low;
+ u32 data_high;
u32 bankgrpnr;
u32 blknr;
+ u32 syndrome;
};

/**
@@ -354,6 +358,70 @@ struct synps_platform_data {
int quirks;
};

+/**
+ * zynq_get_dtype - Return the controller memory width.
+ * @base: DDR memory controller base address.
+ *
+ * Get the EDAC device type width appropriate for the current controller
+ * configuration.
+ *
+ * Return: a device type width enumeration.
+ */
+static enum dev_type zynq_get_dtype(const void __iomem *base)
+{
+ enum dev_type dt;
+ u32 width;
+
+ width = readl(base + CTRL_OFST);
+ width = (width & CTRL_BW_MASK) >> CTRL_BW_SHIFT;
+
+ switch (width) {
+ case DDRCTL_WDTH_16:
+ dt = DEV_X2;
+ break;
+ case DDRCTL_WDTH_32:
+ dt = DEV_X4;
+ break;
+ default:
+ dt = DEV_UNKNOWN;
+ }
+
+ return dt;
+}
+
+/**
+ * zynqmp_get_dtype - Return the controller memory width.
+ * @base: DDR memory controller base address.
+ *
+ * Get the EDAC device type width appropriate for the current controller
+ * configuration.
+ *
+ * Return: a device type width enumeration.
+ */
+static enum dev_type zynqmp_get_dtype(const void __iomem *base)
+{
+ enum dev_type dt;
+ u32 width;
+
+ width = readl(base + CTRL_OFST);
+ width = (width & ECC_CTRL_BUSWIDTH_MASK) >> ECC_CTRL_BUSWIDTH_SHIFT;
+ switch (width) {
+ case DDRCTL_EWDTH_16:
+ dt = DEV_X2;
+ break;
+ case DDRCTL_EWDTH_32:
+ dt = DEV_X4;
+ break;
+ case DDRCTL_EWDTH_64:
+ dt = DEV_X8;
+ break;
+ default:
+ dt = DEV_UNKNOWN;
+ }
+
+ return dt;
+}
+
/**
* zynq_get_error_info - Get the current ECC error info.
* @priv: DDR memory controller private instance data.
@@ -385,9 +453,9 @@ static int zynq_get_error_info(struct synps_edac_priv *priv)
p->ceinfo.row = (regval & ADDR_ROW_MASK) >> ADDR_ROW_SHIFT;
p->ceinfo.col = regval & ADDR_COL_MASK;
p->ceinfo.bank = (regval & ADDR_BANK_MASK) >> ADDR_BANK_SHIFT;
- p->ceinfo.data = readl(base + CE_DATA_31_0_OFST);
+ p->ceinfo.data_low = readl(base + CE_DATA_31_0_OFST);
edac_dbg(3, "CE bit position: %d data: %d\n", p->ceinfo.bitpos,
- p->ceinfo.data);
+ p->ceinfo.data_low);
clearval = ECC_CTRL_CLR_CE_ERR;

ue_err:
@@ -399,7 +467,7 @@ static int zynq_get_error_info(struct synps_edac_priv *priv)
p->ueinfo.row = (regval & ADDR_ROW_MASK) >> ADDR_ROW_SHIFT;
p->ueinfo.col = regval & ADDR_COL_MASK;
p->ueinfo.bank = (regval & ADDR_BANK_MASK) >> ADDR_BANK_SHIFT;
- p->ueinfo.data = readl(base + UE_DATA_31_0_OFST);
+ p->ueinfo.data_low = readl(base + UE_DATA_31_0_OFST);
clearval |= ECC_CTRL_CLR_UE_ERR;

out:
@@ -443,10 +511,14 @@ static int zynqmp_get_error_info(struct synps_edac_priv *priv)
p->ceinfo.bankgrpnr = (regval & ECC_CEADDR1_BNKGRP_MASK) >>
ECC_CEADDR1_BNKGRP_SHIFT;
p->ceinfo.blknr = (regval & ECC_CEADDR1_BLKNR_MASK);
- p->ceinfo.data = readl(base + ECC_CSYND0_OFST);
- edac_dbg(2, "ECCCSYN0: 0x%08X ECCCSYN1: 0x%08X ECCCSYN2: 0x%08X\n",
- readl(base + ECC_CSYND0_OFST), readl(base + ECC_CSYND1_OFST),
- readl(base + ECC_CSYND2_OFST));
+ p->ceinfo.data_low = readl(base + ECC_CSYND0_OFST);
+ if (zynqmp_get_dtype(base) == DEV_X8) {
+ p->ceinfo.data_high = readl(base + ECC_CSYND1_OFST);
+ p->ceinfo.syndrome = readl(base + ECC_CSYND2_OFST);
+ edac_dbg(2, "CE data_low: 0x%08X data_high: 0x%08X syndrome: 0x%08X\n",
+ p->ceinfo.data_low, p->ceinfo.data_high,
+ p->ceinfo.syndrome);
+ }
ue_err:
if (!p->ue_cnt)
goto out;
@@ -459,7 +531,14 @@ static int zynqmp_get_error_info(struct synps_edac_priv *priv)
p->ueinfo.bank = (regval & ECC_CEADDR1_BNKNR_MASK) >>
ECC_CEADDR1_BNKNR_SHIFT;
p->ueinfo.blknr = (regval & ECC_CEADDR1_BLKNR_MASK);
- p->ueinfo.data = readl(base + ECC_UESYND0_OFST);
+ p->ueinfo.data_low = readl(base + ECC_UESYND0_OFST);
+ if (zynqmp_get_dtype(base) == DEV_X8) {
+ p->ueinfo.data_high = readl(base + ECC_UESYND1_OFST);
+ p->ueinfo.syndrome = readl(base + ECC_UESYND2_OFST);
+ edac_dbg(2, "UE data_low: 0x%08X data_high: 0x%08X syndrome: 0x%08X\n",
+ p->ueinfo.data_low, p->ueinfo.data_high,
+ p->ueinfo.syndrome);
+ }
out:
clearval = ECC_CTRL_CLR_CE_ERR | ECC_CTRL_CLR_CE_ERRCNT;
clearval |= ECC_CTRL_CLR_UE_ERR | ECC_CTRL_CLR_UE_ERRCNT;
@@ -480,6 +559,7 @@ static void handle_error(struct mem_ctl_info *mci, struct synps_ecc_status *p)
{
struct synps_edac_priv *priv = mci->pvt_info;
struct ecc_error_info *pinf;
+ int n;

if (p->ce_cnt) {
pinf = &p->ceinfo;
@@ -487,13 +567,19 @@ static void handle_error(struct mem_ctl_info *mci, struct synps_ecc_status *p)
snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
"DDR ECC error type:%s Row %d Bank %d Col %d Bit Position: %d Data: 0x%08x",
"CE", pinf->row, pinf->bank, pinf->col,
- pinf->bitpos, pinf->data);
+ pinf->bitpos, pinf->data_low);
} else {
- snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
- "DDR ECC error type:%s Row %d Bank %d BankGroup Number %d Block Number %d Bit Position: %d Data: 0x%08x",
- "CE", pinf->row, pinf->bank,
- pinf->bankgrpnr, pinf->blknr,
- pinf->bitpos, pinf->data);
+ n = snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
+ "DDR ECC error type:%s Row %d Bank %d BankGroup Number %d Block Number %d Bit Position: %d Data: 0x%08x",
+ "CE", pinf->row, pinf->bank,
+ pinf->bankgrpnr, pinf->blknr,
+ pinf->bitpos, pinf->data_low);
+
+ if (zynqmp_get_dtype(priv->baseaddr) == DEV_X8)
+ snprintf(priv->message + n,
+ SYNPS_EDAC_MSG_SIZE - n,
+ " Data_high: 0x%08x Syndrome: 0x%08x",
+ pinf->data_high, pinf->syndrome);
}

edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
@@ -636,70 +722,6 @@ static void check_errors(struct mem_ctl_info *mci)
priv->ce_cnt, priv->ue_cnt);
}

-/**
- * zynq_get_dtype - Return the controller memory width.
- * @base: DDR memory controller base address.
- *
- * Get the EDAC device type width appropriate for the current controller
- * configuration.
- *
- * Return: a device type width enumeration.
- */
-static enum dev_type zynq_get_dtype(const void __iomem *base)
-{
- enum dev_type dt;
- u32 width;
-
- width = readl(base + CTRL_OFST);
- width = (width & CTRL_BW_MASK) >> CTRL_BW_SHIFT;
-
- switch (width) {
- case DDRCTL_WDTH_16:
- dt = DEV_X2;
- break;
- case DDRCTL_WDTH_32:
- dt = DEV_X4;
- break;
- default:
- dt = DEV_UNKNOWN;
- }
-
- return dt;
-}
-
-/**
- * zynqmp_get_dtype - Return the controller memory width.
- * @base: DDR memory controller base address.
- *
- * Get the EDAC device type width appropriate for the current controller
- * configuration.
- *
- * Return: a device type width enumeration.
- */
-static enum dev_type zynqmp_get_dtype(const void __iomem *base)
-{
- enum dev_type dt;
- u32 width;
-
- width = readl(base + CTRL_OFST);
- width = (width & ECC_CTRL_BUSWIDTH_MASK) >> ECC_CTRL_BUSWIDTH_SHIFT;
- switch (width) {
- case DDRCTL_EWDTH_16:
- dt = DEV_X2;
- break;
- case DDRCTL_EWDTH_32:
- dt = DEV_X4;
- break;
- case DDRCTL_EWDTH_64:
- dt = DEV_X8;
- break;
- default:
- dt = DEV_UNKNOWN;
- }
-
- return dt;
-}
-
/**
* zynq_get_ecc_state - Return the controller ECC enable/disable status.
* @base: DDR memory controller base address.
--
2.17.1
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