From: David E. Box <david.e.box@linux.intel.com>
Date: Fri, 12 Jun 2026 21:01:45 +0000 (-0700)
Subject: platform/x86/intel/pmt: Pass discovery index instead of resource
X-Git-Tag: v7.2-rc1~61^2~11
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4a87492cd137d158779923a034d7e742f7358952;p=thirdparty%2Fkernel%2Flinux.git

platform/x86/intel/pmt: Pass discovery index instead of resource

Change PMT class code to pass a discovery index rather than a direct struct
resource when creating entries. This allows the class to identify the
discovery source generically without assuming PCI BAR resources. For PCI
devices, the index still resolves to a resource in the intel_vsec_device.
Other discovery sources, such as ACPI, can use the same index without
needing a struct resource.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://patch.msgid.link/8e785902c6a3ac1b5a9c3f0f65096553dc5acd4f.1781294741.git.david.e.box@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---

diff --git a/drivers/platform/x86/intel/pmt/class.c b/drivers/platform/x86/intel/pmt/class.c
index 9b315334a69ba..7da8279b54f85 100644
--- a/drivers/platform/x86/intel/pmt/class.c
+++ b/drivers/platform/x86/intel/pmt/class.c
@@ -206,11 +206,12 @@ EXPORT_SYMBOL_GPL(intel_pmt_class);
 
 static int intel_pmt_populate_entry(struct intel_pmt_entry *entry,
 				    struct intel_vsec_device *ivdev,
-				    struct resource *disc_res)
+				    int idx)
 {
 	struct pci_dev *pci_dev = to_pci_dev(ivdev->dev);
 	struct device *dev = &ivdev->auxdev.dev;
 	struct intel_pmt_header *header = &entry->header;
+	struct resource *disc_res;
 	u8 bir;
 
 	/*
@@ -235,6 +236,7 @@ static int intel_pmt_populate_entry(struct intel_pmt_entry *entry,
 		 * For access_type LOCAL, the base address is as follows:
 		 * base address = end of discovery region + base offset
 		 */
+		disc_res = &ivdev->resource[idx];
 		entry->base_addr = disc_res->end + 1 + header->base_offset;
 
 		/*
@@ -397,7 +399,7 @@ int intel_pmt_dev_create(struct intel_pmt_entry *entry, struct intel_pmt_namespa
 			return ret;
 	}
 
-	ret = intel_pmt_populate_entry(entry, intel_vsec_dev, disc_res);
+	ret = intel_pmt_populate_entry(entry, intel_vsec_dev, idx);
 	if (ret)
 		return ret;