EDAC/i10nm: Print an extra register set of retry_rd_err_log

mainline inclusion
from mainline-v6.1-rc1
commit d5f5e499
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I5V3SJ
CVE: NA

Intel-SIG: commit d5f5e499 EDAC/i10nm: Print an extra register set of
 retry_rd_err_log.
Backport to add retry_rd_err_log for SPR HBM.

--------------------------------

Sapphire Rapids server adds an extra register set for logging more
retry_rd_err_log data. So add code to print the extra register set.
Signed-off-by: NQiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: NTony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/all/20220722233338.341567-1-tony.luck@intel.comSigned-off-by: NYouquan Song <youquan.song@intel.com>

drivers/edac/i10nm_base.c

@@ -83,26 +83,38 @@ static u32 offsets_scrub_spr_hbm0[]  = {0x2860, 0x2854, 0x2b08, 0x2858, 0x2828,
 static u32 offsets_scrub_spr_hbm1[]  = {0x2c60, 0x2c54, 0x2f08, 0x2c58, 0x2c28, 0x0fa8};
 static u32 offsets_demand_icx[] = {0x22e54, 0x22e60, 0x22e64, 0x22e58, 0x22e5c, 0x20ee0};
 static u32 offsets_demand_spr[] = {0x22e54, 0x22e60, 0x22f10, 0x22e58, 0x22e5c, 0x20ee0};
+static u32 offsets_demand2_spr[] = {0x22c70, 0x22d80, 0x22f18, 0x22d58, 0x22c64, 0x20f10};
 static u32 offsets_demand_spr_hbm0[] = {0x2a54, 0x2a60, 0x2b10, 0x2a58, 0x2a5c, 0x0ee0};
 static u32 offsets_demand_spr_hbm1[] = {0x2e54, 0x2e60, 0x2f10, 0x2e58, 0x2e5c, 0x0fb0};
 
 static void __enable_retry_rd_err_log(struct skx_imc *imc, int chan, bool enable,
-				      u32 *offsets_scrub, u32 *offsets_demand)
+				      u32 *offsets_scrub, u32 *offsets_demand,
+				      u32 *offsets_demand2)
 {
-	u32 s, d;
+	u32 s, d, d2;
 
 	s = I10NM_GET_REG32(imc, chan, offsets_scrub[0]);
 	d = I10NM_GET_REG32(imc, chan, offsets_demand[0]);
+	if (offsets_demand2)
+		d2 = I10NM_GET_REG32(imc, chan, offsets_demand2[0]);
 
 	if (enable) {
 		/* Save default configurations */
 		imc->chan[chan].retry_rd_err_log_s = s;
 		imc->chan[chan].retry_rd_err_log_d = d;
+		if (offsets_demand2)
+			imc->chan[chan].retry_rd_err_log_d2 = d2;
 
 		s &= ~RETRY_RD_ERR_LOG_NOOVER_UC;
 		s |=  RETRY_RD_ERR_LOG_EN;
 		d &= ~RETRY_RD_ERR_LOG_NOOVER_UC;
 		d |=  RETRY_RD_ERR_LOG_EN;
+
+		if (offsets_demand2) {
+			d2 &= ~RETRY_RD_ERR_LOG_UC;
+			d2 |=  RETRY_RD_ERR_LOG_NOOVER;
+			d2 |=  RETRY_RD_ERR_LOG_EN;
+		}
 	} else {
 		/* Restore default configurations */
 		if (imc->chan[chan].retry_rd_err_log_s & RETRY_RD_ERR_LOG_UC)
@@ -117,10 +129,21 @@ static void __enable_retry_rd_err_log(struct skx_imc *imc, int chan, bool enable
 			d |=  RETRY_RD_ERR_LOG_NOOVER;
 		if (!(imc->chan[chan].retry_rd_err_log_d & RETRY_RD_ERR_LOG_EN))
 			d &= ~RETRY_RD_ERR_LOG_EN;
+
+		if (offsets_demand2) {
+			if (imc->chan[chan].retry_rd_err_log_d2 & RETRY_RD_ERR_LOG_UC)
+				d2 |=  RETRY_RD_ERR_LOG_UC;
+			if (!(imc->chan[chan].retry_rd_err_log_d2 & RETRY_RD_ERR_LOG_NOOVER))
+				d2 &=  ~RETRY_RD_ERR_LOG_NOOVER;
+			if (!(imc->chan[chan].retry_rd_err_log_d2 & RETRY_RD_ERR_LOG_EN))
+				d2 &= ~RETRY_RD_ERR_LOG_EN;
+		}
 	}
 
 	I10NM_SET_REG32(imc, chan, offsets_scrub[0], s);
 	I10NM_SET_REG32(imc, chan, offsets_demand[0], d);
+	if (offsets_demand2)
+		I10NM_SET_REG32(imc, chan, offsets_demand2[0], d2);
 }
 
 static void enable_retry_rd_err_log(bool enable)
@@ -141,14 +164,17 @@ static void enable_retry_rd_err_log(bool enable)
 				if (imc->hbm_mc) {
 					__enable_retry_rd_err_log(imc, j, enable,
 								  res_cfg->offsets_scrub_hbm0,
-								  res_cfg->offsets_demand_hbm0);
+								  res_cfg->offsets_demand_hbm0,
+								  NULL);
 					__enable_retry_rd_err_log(imc, j, enable,
 								  res_cfg->offsets_scrub_hbm1,
-								  res_cfg->offsets_demand_hbm1);
+								  res_cfg->offsets_demand_hbm1,
+								  NULL);
 				} else {
 					__enable_retry_rd_err_log(imc, j, enable,
 								  res_cfg->offsets_scrub,
-								  res_cfg->offsets_demand);
+								  res_cfg->offsets_demand,
+								  res_cfg->offsets_demand2);
 				}
 			}
 	}
@@ -160,7 +186,10 @@ static void show_retry_rd_err_log(struct decoded_addr *res, char *msg,
 	struct skx_imc *imc = &res->dev->imc[res->imc];
 	u32 log0, log1, log2, log3, log4;
 	u32 corr0, corr1, corr2, corr3;
+	u32 lxg0, lxg1, lxg3, lxg4;
+	u32 *xffsets = NULL;
 	u64 log2a, log5;
+	u64 lxg2a, lxg5;
 	u32 *offsets;
 	int n, pch;
 
@@ -177,8 +206,12 @@ static void show_retry_rd_err_log(struct decoded_addr *res, char *msg,
 			offsets = scrub_err ? res_cfg->offsets_scrub_hbm0 :
 					      res_cfg->offsets_demand_hbm0;
 	} else {
-		offsets = scrub_err ? res_cfg->offsets_scrub :
-				      res_cfg->offsets_demand;
+		if (scrub_err) {
+			offsets = res_cfg->offsets_scrub;
+		} else {
+			offsets = res_cfg->offsets_demand;
+			xffsets = res_cfg->offsets_demand2;
+		}
 	}
 
 	log0 = I10NM_GET_REG32(imc, res->channel, offsets[0]);
@@ -187,10 +220,28 @@ static void show_retry_rd_err_log(struct decoded_addr *res, char *msg,
 	log4 = I10NM_GET_REG32(imc, res->channel, offsets[4]);
 	log5 = I10NM_GET_REG64(imc, res->channel, offsets[5]);
 
+	if (xffsets) {
+		lxg0 = I10NM_GET_REG32(imc, res->channel, xffsets[0]);
+		lxg1 = I10NM_GET_REG32(imc, res->channel, xffsets[1]);
+		lxg3 = I10NM_GET_REG32(imc, res->channel, xffsets[3]);
+		lxg4 = I10NM_GET_REG32(imc, res->channel, xffsets[4]);
+		lxg5 = I10NM_GET_REG64(imc, res->channel, xffsets[5]);
+	}
+
 	if (res_cfg->type == SPR) {
 		log2a = I10NM_GET_REG64(imc, res->channel, offsets[2]);
-		n = snprintf(msg, len, " retry_rd_err_log[%.8x %.8x %.16llx %.8x %.8x %.16llx]",
+		n = snprintf(msg, len, " retry_rd_err_log[%.8x %.8x %.16llx %.8x %.8x %.16llx",
 			     log0, log1, log2a, log3, log4, log5);
+
+		if (len - n > 0) {
+			if (xffsets) {
+				lxg2a = I10NM_GET_REG64(imc, res->channel, xffsets[2]);
+				n += snprintf(msg + n, len - n, " %.8x %.8x %.16llx %.8x %.8x %.16llx]",
+					     lxg0, lxg1, lxg2a, lxg3, lxg4, lxg5);
+			} else {
+				n += snprintf(msg + n, len - n, "]");
+			}
+		}
 	} else {
 		log2 = I10NM_GET_REG32(imc, res->channel, offsets[2]);
 		n = snprintf(msg, len, " retry_rd_err_log[%.8x %.8x %.8x %.8x %.8x %.16llx]",
@@ -225,9 +276,16 @@ static void show_retry_rd_err_log(struct decoded_addr *res, char *msg,
 			 corr3 & 0xffff, corr3 >> 16);
 
 	/* Clear status bits */
-	if (retry_rd_err_log == 2 && (log0 & RETRY_RD_ERR_LOG_OVER_UC_V)) {
-		log0 &= ~RETRY_RD_ERR_LOG_OVER_UC_V;
-		I10NM_SET_REG32(imc, res->channel, offsets[0], log0);
+	if (retry_rd_err_log == 2) {
+		if (log0 & RETRY_RD_ERR_LOG_OVER_UC_V) {
+			log0 &= ~RETRY_RD_ERR_LOG_OVER_UC_V;
+			I10NM_SET_REG32(imc, res->channel, offsets[0], log0);
+		}
+
+		if (xffsets && (lxg0 & RETRY_RD_ERR_LOG_OVER_UC_V)) {
+			lxg0 &= ~RETRY_RD_ERR_LOG_OVER_UC_V;
+			I10NM_SET_REG32(imc, res->channel, xffsets[0], lxg0);
+		}
 	}
 }
 
@@ -568,6 +626,7 @@ static struct res_config spr_cfg = {
 	.offsets_scrub_hbm0	= offsets_scrub_spr_hbm0,
 	.offsets_scrub_hbm1	= offsets_scrub_spr_hbm1,
 	.offsets_demand		= offsets_demand_spr,
+	.offsets_demand2	= offsets_demand2_spr,
 	.offsets_demand_hbm0	= offsets_demand_spr_hbm0,
 	.offsets_demand_hbm1	= offsets_demand_spr_hbm1,
 };

drivers/edac/skx_common.h

@@ -86,6 +86,7 @@ struct skx_dev {
 			struct pci_dev	*edev;
 			u32 retry_rd_err_log_s;
 			u32 retry_rd_err_log_d;
+			u32 retry_rd_err_log_d2;
 			struct skx_dimm {
 				u8 close_pg;
 				u8 bank_xor_enable;
@@ -167,6 +168,7 @@ struct res_config {
 	u32 *offsets_scrub_hbm0;
 	u32 *offsets_scrub_hbm1;
 	u32 *offsets_demand;
+	u32 *offsets_demand2;
 	u32 *offsets_demand_hbm0;
 	u32 *offsets_demand_hbm1;
 };