* [PATCH] platform/x86/intel/pmc: Fix stale NVL PCD-S S0ix_LPM telemetry constants
@ 2026-09-19 5:18 Xi Pardee
0 siblings, 0 replies; only message in thread
From: Xi Pardee @ 2026-09-19 5:18 UTC (permalink / raw)
To: xi.pardee, irenic.rajneesh, david.e.box, ilpo.jarvinen,
platform-driver-x86, linux-kernel, linux-pm
The Nova Lake PCD-S S0ix_LPM telemetry layout changed. The PCD-S telemetry
GUID was changed to reflect the layout change, per the client GUID
revision rule.
nvl_pcds_d3_status_1_map[] was correctly updated, but two companion
constants were never updated to match:
1. NVL_PCDS_NUM_S0IX_BLOCKER (core.h) is 71 instead of the actual
number of blk == 1 entries across nvl_pcds_blk_maps.
2. PCDS_LPM_REQ_GUID (nvl.c) is still 0x01091102. It was never
bumped to 0x01091103 to reflect the S0ix_LPM telemetry metadata
layout change.
Both constants describe the same S0ix_LPM/blocker telemetry region
for PCD-S, so fix them together in one change.
Fixes: 41354f4c8a79 ("platform/x86/intel/pmc: Add Nova Lake support to intel_pmc_core driver")
Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
---
drivers/platform/x86/intel/pmc/core.h | 2 +-
drivers/platform/x86/intel/pmc/nvl.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index b4c7399f8369d..e55164e5807fd 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -323,7 +323,7 @@ enum ppfear_regs {
#define NVL_LPM_LIVE_STATUS_OFFSET 0x1760
#define NVL_LPM_NUM_MAPS 15
#define NVL_PCDH_NUM_S0IX_BLOCKER 107
-#define NVL_PCDS_NUM_S0IX_BLOCKER 71
+#define NVL_PCDS_NUM_S0IX_BLOCKER 70
#define NVL_PCHS_NUM_S0IX_BLOCKER 54
#define NVL_PCDS_PMC_LTR_RESERVED 0x1bac
#define NVL_PCDH_BLK_REQ_OFFSET 53
diff --git a/drivers/platform/x86/intel/pmc/nvl.c b/drivers/platform/x86/intel/pmc/nvl.c
index 8dabf2511dd9d..1ed02332dbfce 100644
--- a/drivers/platform/x86/intel/pmc/nvl.c
+++ b/drivers/platform/x86/intel/pmc/nvl.c
@@ -14,7 +14,7 @@
/* PMC SSRAM PMT Telemetry GUIDS */
#define PCDH_LPM_REQ_GUID 0x01093101
#define PCHS_LPM_REQ_GUID 0x01092101
-#define PCDS_LPM_REQ_GUID 0x01091102
+#define PCDS_LPM_REQ_GUID 0x01091103
/*
* Die Mapping to Product.
--
2.43.0
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2026-09-19 5:18 [PATCH] platform/x86/intel/pmc: Fix stale NVL PCD-S S0ix_LPM telemetry constants Xi Pardee
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