From: "David E. Box" <david.e.box@linux.intel.com>
To: irenic.rajneesh@gmail.com, ilpo.jarvinen@linux.intel.com,
srinivas.pandruvada@linux.intel.com, xi.pardee@linux.intel.com,
david.e.box@linux.intel.com
Cc: hansg@kernel.org, linux-kernel@vger.kernel.org,
platform-driver-x86@vger.kernel.org
Subject: [PATCH V3 01/16] platform/x86/intel/pmt: Add pre/post decode hooks around header parsing
Date: Fri, 1 May 2026 16:10:38 -0700 [thread overview]
Message-ID: <20260501231054.3890305-2-david.e.box@linux.intel.com> (raw)
In-Reply-To: <20260501231054.3890305-1-david.e.box@linux.intel.com>
Add optional pre- and post-decode callbacks to the PMT class so namespaces
can perform setup and cleanup steps around header parsing.
- Add pmt_pre_decode() and pmt_post_decode() to struct
intel_pmt_namespace.
- Update intel_pmt_dev_create() to invoke, in order:
pre → header_decode() → post.
- Keep the existing pmt_header_decode() callback unchanged.
No functional changes. This adds flexibility for upcoming decoders while
preserving current behavior.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
V3 - No changes
V2 - No changes
drivers/platform/x86/intel/pmt/class.c | 12 ++++++++++++
drivers/platform/x86/intel/pmt/class.h | 4 ++++
2 files changed, 16 insertions(+)
diff --git a/drivers/platform/x86/intel/pmt/class.c b/drivers/platform/x86/intel/pmt/class.c
index b4c9964df807..9b315334a69b 100644
--- a/drivers/platform/x86/intel/pmt/class.c
+++ b/drivers/platform/x86/intel/pmt/class.c
@@ -381,10 +381,22 @@ int intel_pmt_dev_create(struct intel_pmt_entry *entry, struct intel_pmt_namespa
if (IS_ERR(entry->disc_table))
return PTR_ERR(entry->disc_table);
+ if (ns->pmt_pre_decode) {
+ ret = ns->pmt_pre_decode(intel_vsec_dev, entry);
+ if (ret)
+ return ret;
+ }
+
ret = ns->pmt_header_decode(entry, dev);
if (ret)
return ret;
+ if (ns->pmt_post_decode) {
+ ret = ns->pmt_post_decode(intel_vsec_dev, entry);
+ if (ret)
+ return ret;
+ }
+
ret = intel_pmt_populate_entry(entry, intel_vsec_dev, disc_res);
if (ret)
return ret;
diff --git a/drivers/platform/x86/intel/pmt/class.h b/drivers/platform/x86/intel/pmt/class.h
index 1ae56a5baad2..ff39014b208c 100644
--- a/drivers/platform/x86/intel/pmt/class.h
+++ b/drivers/platform/x86/intel/pmt/class.h
@@ -62,6 +62,10 @@ struct intel_pmt_namespace {
struct xarray *xa;
int (*pmt_header_decode)(struct intel_pmt_entry *entry,
struct device *dev);
+ int (*pmt_pre_decode)(struct intel_vsec_device *ivdev,
+ struct intel_pmt_entry *entry);
+ int (*pmt_post_decode)(struct intel_vsec_device *ivdev,
+ struct intel_pmt_entry *entry);
int (*pmt_add_endpoint)(struct intel_vsec_device *ivdev,
struct intel_pmt_entry *entry);
};
--
2.43.0
next prev parent reply other threads:[~2026-05-01 23:11 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-01 23:10 [PATCH V3 00/16] Add ACPI-based PMT discovery support for Intel PMC David E. Box
2026-05-01 23:10 ` David E. Box [this message]
2026-05-01 23:10 ` [PATCH V3 02/16] platform/x86/intel/pmt/crashlog: Split init into pre-decode David E. Box
2026-05-01 23:10 ` [PATCH V3 03/16] platform/x86/intel/pmt/telemetry: Move overlap check to post-decode hook David E. Box
2026-05-01 23:10 ` [PATCH V3 04/16] platform/x86/intel/pmt: Pass discovery index instead of resource David E. Box
2026-05-01 23:10 ` [PATCH V3 05/16] platform/x86/intel/pmt: Cache the telemetry discovery header David E. Box
2026-05-01 23:10 ` [PATCH V3 06/16] platform/x86/intel/pmt: Unify header fetch and add ACPI source David E. Box
2026-05-01 23:10 ` [PATCH V3 07/16] platform/x86/intel/pmc: Add PMC SSRAM Kconfig description David E. Box
2026-05-01 23:10 ` [PATCH V3 08/16] platform/x86/intel/pmc: Add ACPI PWRM telemetry driver for Nova Lake S David E. Box
2026-05-01 23:10 ` [PATCH V3 09/16] platform/x86/intel/pmc/ssram: Rename probe and PCI ID table for consistency David E. Box
2026-05-01 23:10 ` [PATCH V3 10/16] platform/x86/intel/pmc/ssram: Use fixed-size static pmc array David E. Box
2026-05-01 23:10 ` [PATCH V3 11/16] platform/x86/intel/pmc/ssram: Refactor DEVID/PWRMBASE extraction into helper David E. Box
2026-05-01 23:10 ` [PATCH V3 12/16] platform/x86/intel/pmc/ssram: Add PCI platform data David E. Box
2026-05-01 23:10 ` [PATCH V3 13/16] platform/x86/intel/pmc/ssram: Refactor memory barrier for reentrant probe David E. Box
2026-05-01 23:10 ` [PATCH V3 14/16] platform/x86/intel/pmc/ssram: Add ACPI discovery scaffolding David E. Box
2026-05-01 23:10 ` [PATCH V3 15/16] platform/x86/intel/pmc/ssram: Make PMT registration optional David E. Box
2026-05-01 23:10 ` [PATCH V3 16/16] platform/x86/intel/pmc: Add NVL PCI IDs for SSRAM telemetry discovery David E. Box
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