[PATCH V2 05/17] platform/x86/intel/pmt: Pass discovery index instead of resource

David E. Box
2026-03-25T01:48:29Z

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>
---

V2 - No changes

drivers/platform/x86/intel/pmt/class.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/intel/pmt/class.c b/drivers/platform/x86/intel/pmt/class.c
index d652b21261f0..3fcea6a6e763 100644
--- a/drivers/platform/x86/intel/pmt/class.c
+++ b/drivers/platform/x86/intel/pmt/class.c
@@ -207,11 +207,12 @@ 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;

/*
@@ -236,6 +237,7 @@ 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;

/*
@@ -412,7 +414,7 @@ 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, &intel_vsec_dev->resource[idx]);
+ ret = intel_pmt_populate_entry(entry, intel_vsec_dev, idx);
if (ret)
return ret;

--
2.43.0