drivers/ocp/ewl: Add sending Meta's BMC SEL for memory training error

Add sending Meta's BMC SEL for memory training error occurred in EWL
type 3 error.

The detail definition of EWL (Enhanced Warning Log) can be found in the
specification document -- BIOS Data ACPI Table (BDAT) Interface
Specification v4.0 Draft 5:
https://uefi.org/sites/default/files/resources/BDAT%20Specification%20v4.0%20Draft5_0.pdf

Change-Id: I664e9d3da7910b47260881c0df64159c8dbe2dca
Signed-off-by: Shelly Chang <Shelly_Chang@wiwynn.com>
Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69147
Reviewed-by: Jonathan Zhang <jon.zhixiong.zhang@gmail.com>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

3 files changed, 58 insertions, 1 deletions

diff --git a/src/drivers/ipmi/ocp/Makefile.inc b/src/drivers/ipmi/ocp/Makefile.inc
index 2b492e124d..3d5e69eb12 100644
--- a/src/drivers/ipmi/ocp/Makefile.inc
+++ b/src/drivers/ipmi/ocp/Makefile.inc
@@ -1,5 +1,5 @@
 ramstage-$(CONFIG_IPMI_OCP) += ipmi_ocp.c ipmi_sel.c
 ifeq ($(CONFIG_IPMI_OCP),y)
-romstage-$(CONFIG_IPMI_KCS_ROMSTAGE) += ipmi_ocp_romstage.c
+romstage-$(CONFIG_IPMI_KCS_ROMSTAGE) += ipmi_ocp_romstage.c ipmi_sel.c
 smm-$(CONFIG_IPMI_BMC_SEL) += ipmi_sel.c
 endif
diff --git a/src/drivers/ipmi/ocp/ipmi_ocp.h b/src/drivers/ipmi/ocp/ipmi_ocp.h
index 571eafc731..d02eb35449 100644
--- a/src/drivers/ipmi/ocp/ipmi_ocp.h
+++ b/src/drivers/ipmi/ocp/ipmi_ocp.h
@@ -89,6 +89,16 @@ enum fail_type {
 	PCIE_ECRC_EVNT = 5,
 };
 
+enum sel_err_type {
+	MEM_TRAINING_ERR = 0,
+	MEM_CORR_ERR = 1,
+	MEM_UNCORR_ERR = 2,
+	MEM_CORR_ERR_PATROL = 3,
+	MEM_UNCORR_ERR_PATROL = 4,
+	MEM_PARITY_ERR = 5,
+	MEM_UNDEFINED = 0xF,
+};
+
 struct ipmi_sel_pcie_dev_fail {
 	uint16_t record_id;
 	uint8_t record_type;
@@ -102,6 +112,21 @@ struct ipmi_sel_pcie_dev_fail {
 	uint8_t rsvd2;
 } __packed;
 
+struct ipmi_sel_mem_err {
+	uint16_t record_id;
+	uint8_t record_type;
+	uint8_t general_info;
+	uint32_t timestamp;
+	uint8_t socket;
+	uint8_t channel;
+	uint8_t dimm_slot;
+	uint8_t rsvd1;
+	uint8_t dimm_failure_type;
+	uint8_t major_code;
+	uint8_t minor_code;
+	uint8_t rsvd2;
+} __packed;
+
 struct ipmi_config_rsp {
 	uint8_t board_sku_id;
 	uint8_t board_rev_id;
@@ -111,6 +136,7 @@ struct ipmi_config_rsp {
 
 #define SEL_RECORD_ID			0x01
 #define SEL_PCIE_DEV_ERR		0x20
+#define SEL_INTEL_MEMORY_ERROR		0x21
 #define SEL_PCIE_IIO_ERR		0x23
 #define SEL_PCIE_DEV_FAIL_ID		0x29
 
diff --git a/src/drivers/ocp/ewl/ewl.c b/src/drivers/ocp/ewl/ewl.c
index 871981a28b..244634bcf9 100644
--- a/src/drivers/ocp/ewl/ewl.c
+++ b/src/drivers/ocp/ewl/ewl.c
@@ -2,8 +2,38 @@
 
 #include <soc/soc_util.h>
 #include <lib.h>
+#include <drivers/ipmi/ocp/ipmi_ocp.h>
 #include "ocp_ewl.h"
 
+static void ipmi_send_sel_ewl_type3_err(EWL_ENTRY_HEADER *header,
+		EWL_ENTRY_MEMORY_LOCATION memory_location)
+{
+	struct ipmi_sel_mem_err sel;
+	uint8_t socketid;
+	EWL_ENTRY_TYPE3 *basic_warning;
+	basic_warning = (EWL_ENTRY_TYPE3 *)header;
+
+	/* Ignore invalid EWL DIMM location before sending SEL */
+	if (memory_location.Channel == 0xff || memory_location.Dimm == 0xff)
+		return;
+	memset(&sel, 0, sizeof(struct ipmi_sel_mem_err));
+	sel.record_id = 0x0000;
+	sel.record_type = 0xfb;
+	sel.general_info = SEL_INTEL_MEMORY_ERROR;
+	sel.timestamp = 0;
+	socketid = get_blade_id() - 1;
+	sel.socket =  socketid <<= 4;
+	sel.channel = memory_location.Channel;
+	sel.dimm_slot = memory_location.Dimm;
+	sel.rsvd1 = 0xff;
+	sel.dimm_failure_type = MEM_TRAINING_ERR;
+	sel.major_code = basic_warning->Context.MajorWarningCode;
+	sel.minor_code = basic_warning->Context.MinorWarningCode;
+	sel.rsvd2 = 0xff;
+	ipmi_send_to_bmc((unsigned char *)&sel, sizeof(sel));
+	printk(BIOS_DEBUG, "ipmi send memory training error\n");
+}
+
 static void process_ewl_type3(EWL_ENTRY_HEADER *header, EWL_ENTRY_MEMORY_LOCATION memory_location)
 {
 	/* Treat warning as type 3, collect basic information and print to serial log */
@@ -47,6 +77,7 @@ void get_ewl(void)
 			type3 = (EWL_ENTRY_TYPE3 *)warning_header;
 			process_ewl_type3(warning_header, type3->MemoryLocation);
 			type3_flag = 1;
+			ipmi_send_sel_ewl_type3_err(warning_header, type3->MemoryLocation);
 		} else {
 			printk(BIOS_DEBUG, "EWL type: %d size:%d severity level:%d\n",
 					warning_header->Type,