From b757facac292b11f32a5ecdb8ce58eb60d1a555f Mon Sep 17 00:00:00 2001
From: Pratikkumar Prajapati <pratikkumar.v.prajapati@intel.com>
Date: Mon, 31 Jul 2023 15:44:16 -0700
Subject: soc/intel/common: Add metadata tag definition for crashlog
When parsing descriptor table the record can have tag type = 7.
This tag contains metadata depending on SOC. The platform may
choose to parse it based on implementation of crashlog.
BUG=b:262501347
TEST=Able to build google/rex.
Change-Id: I60dda06950974f7949fa5635141e4b7798c4d1f2
Signed-off-by: Pratikkumar Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76833
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
---
src/soc/intel/common/block/include/intelblocks/crashlog.h | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
(limited to 'src/soc/intel/common')
diff --git a/src/soc/intel/common/block/include/intelblocks/crashlog.h b/src/soc/intel/common/block/include/intelblocks/crashlog.h
index 91e8edd5a3..ceaa9f1409 100644
--- a/src/soc/intel/common/block/include/intelblocks/crashlog.h
+++ b/src/soc/intel/common/block/include/intelblocks/crashlog.h
@@ -25,9 +25,18 @@
#define INVALID_CRASHLOG_RECORD 0xdeadbeef
-/* Tag field definitions */
+/*
+ * Tag field definitions.
+ * Each region pointed by the descriptor table contains TAG information. This TAG information
+ * is used to identify the type of SRAM the region belongs to, for example:
+ * - TAG 0 represents the SoC PMC region
+ * - TAG 1 represents the IOE PMC region
+ * - TAG 7 represents a special case aka metadata information. This metadata information can be
+ * SoC specific too.
+ */
#define CRASHLOG_DESCRIPTOR_TABLE_TAG_SOC 0x0
#define CRASHLOG_DESCRIPTOR_TABLE_TAG_IOE 0x1
+#define CRASHLOG_DESCRIPTOR_TABLE_TAG_META 0x7
/* PMC crashlog discovery structs */
typedef union {
--
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