6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Shiju Jose <shiju.jose@xxxxxxxxxx>
[ Upstream commit 53ab8678e7180834be29cf56cd52825fc3427c02 ]
CXL spec rev 3.0 section 8.2.9.2.1.2 defines the DRAM Event Record.
Fix decode memory event type field of DRAM Event Record.
For e.g. if value is 0x1 it will be reported as an Invalid Address
(General Media Event Record - Memory Event Type) instead of Scrub Media
ECC Error (DRAM Event Record - Memory Event Type) and so on.
Fixes: 2d6c1e6d60ba ("cxl/mem: Trace DRAM Event Record")
Signed-off-by: Shiju Jose <shiju.jose@xxxxxxxxxx>
Link: https://patch.msgid.link/20241014143003.1170-1-shiju.jose@xxxxxxxxxx
Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/cxl/core/trace.h | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/cxl/core/trace.h b/drivers/cxl/core/trace.h
index bdf24867d5174..1e1e50d39bf63 100644
--- a/drivers/cxl/core/trace.h
+++ b/drivers/cxl/core/trace.h
@@ -278,7 +278,7 @@ TRACE_EVENT(cxl_generic_event,
#define CXL_GMER_MEM_EVT_TYPE_ECC_ERROR 0x00
#define CXL_GMER_MEM_EVT_TYPE_INV_ADDR 0x01
#define CXL_GMER_MEM_EVT_TYPE_DATA_PATH_ERROR 0x02
-#define show_mem_event_type(type) __print_symbolic(type, \
+#define show_gmer_mem_event_type(type) __print_symbolic(type, \
{ CXL_GMER_MEM_EVT_TYPE_ECC_ERROR, "ECC Error" }, \
{ CXL_GMER_MEM_EVT_TYPE_INV_ADDR, "Invalid Address" }, \
{ CXL_GMER_MEM_EVT_TYPE_DATA_PATH_ERROR, "Data Path Error" } \
@@ -359,7 +359,7 @@ TRACE_EVENT(cxl_general_media,
"device=%x comp_id=%s validity_flags='%s'",
__entry->dpa, show_dpa_flags(__entry->dpa_flags),
show_event_desc_flags(__entry->descriptor),
- show_mem_event_type(__entry->type),
+ show_gmer_mem_event_type(__entry->type),
show_trans_type(__entry->transaction_type),
__entry->channel, __entry->rank, __entry->device,
__print_hex(__entry->comp_id, CXL_EVENT_GEN_MED_COMP_ID_SIZE),
@@ -376,6 +376,17 @@ TRACE_EVENT(cxl_general_media,
* DRAM Event Record defines many fields the same as the General Media Event
* Record. Reuse those definitions as appropriate.
*/
+#define CXL_DER_MEM_EVT_TYPE_ECC_ERROR 0x00
+#define CXL_DER_MEM_EVT_TYPE_SCRUB_MEDIA_ECC_ERROR 0x01
+#define CXL_DER_MEM_EVT_TYPE_INV_ADDR 0x02
+#define CXL_DER_MEM_EVT_TYPE_DATA_PATH_ERROR 0x03
+#define show_dram_mem_event_type(type) __print_symbolic(type, \
+ { CXL_DER_MEM_EVT_TYPE_ECC_ERROR, "ECC Error" }, \
+ { CXL_DER_MEM_EVT_TYPE_SCRUB_MEDIA_ECC_ERROR, "Scrub Media ECC Error" }, \
+ { CXL_DER_MEM_EVT_TYPE_INV_ADDR, "Invalid Address" }, \
+ { CXL_DER_MEM_EVT_TYPE_DATA_PATH_ERROR, "Data Path Error" } \
+)
+
#define CXL_DER_VALID_CHANNEL BIT(0)
#define CXL_DER_VALID_RANK BIT(1)
#define CXL_DER_VALID_NIBBLE BIT(2)
@@ -449,7 +460,7 @@ TRACE_EVENT(cxl_dram,
"validity_flags='%s'",
__entry->dpa, show_dpa_flags(__entry->dpa_flags),
show_event_desc_flags(__entry->descriptor),
- show_mem_event_type(__entry->type),
+ show_dram_mem_event_type(__entry->type),
show_trans_type(__entry->transaction_type),
__entry->channel, __entry->rank, __entry->nibble_mask,
__entry->bank_group, __entry->bank,
--
2.43.0
