linux-kernel - [PATCH 12/15] platform/x86/intel/tpmi: Get OOBMSM CPU mapping from TPMI

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Message-ID: <20250430212106.369208-13-david.e.box@linux.intel.com>
Date: Wed, 30 Apr 2025 14:21:01 -0700
From: "David E. Box" <david.e.box@...ux.intel.com>
To: linux-kernel@...r.kernel.org,
	platform-driver-x86@...r.kernel.org,
	david.e.box@...ux.intel.com,
	srinivas.pandruvada@...ux.intel.com,
	andriy.shevchenko@...ux.intel.com,
	ilpo.jarvinen@...ux.intel.com,
	tony.luck@...el.com,
	xi.pardee@...ux.intel.com
Cc: hdegoede@...hat.com
Subject: [PATCH 12/15] platform/x86/intel/tpmi: Get OOBMSM CPU mapping from TPMI

Copy TPMI’s OOBMSM platform info into a common area within VSEC private
data via intel_vsec_set_mapping(). This enables other Intel VSEC features
to access the CPU mapping without additional queries.

Additionally, designate the TPMI driver as a supplier for the Telemetry
driver, ensuring it can obtain the necessary platform information for
future feature extensions.

Signed-off-by: David E. Box <david.e.box@...ux.intel.com>
---
 drivers/platform/x86/intel/vsec.c      | 2 +-
 drivers/platform/x86/intel/vsec_tpmi.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/intel/vsec.c b/drivers/platform/x86/intel/vsec.c
index 989d79d71db1..151f87fe928d 100644
--- a/drivers/platform/x86/intel/vsec.c
+++ b/drivers/platform/x86/intel/vsec.c
@@ -721,7 +721,7 @@ static const struct intel_vsec_platform_info mtl_info = {
 static const struct vsec_feature_dependency oobmsm_deps[] = {
 	{
 		.feature = VSEC_CAP_TELEMETRY,
-		.supplier_bitmap = VSEC_CAP_DISCOVERY
+		.supplier_bitmap = VSEC_CAP_DISCOVERY | VSEC_CAP_TPMI,
 	},
 };
 
diff --git a/drivers/platform/x86/intel/vsec_tpmi.c b/drivers/platform/x86/intel/vsec_tpmi.c
index d95a0d994546..7748b5557a18 100644
--- a/drivers/platform/x86/intel/vsec_tpmi.c
+++ b/drivers/platform/x86/intel/vsec_tpmi.c
@@ -799,6 +799,10 @@ static int intel_vsec_tpmi_init(struct auxiliary_device *auxdev)
 			ret = tpmi_process_info(tpmi_info, pfs);
 			if (ret)
 				return ret;
+
+			ret = intel_vsec_set_mapping(&tpmi_info->plat_info, vsec_dev);
+			if (ret)
+				return ret;
 		}
 
 		if (pfs->pfs_header.tpmi_id == TPMI_CONTROL_ID)
-- 
2.43.0