diff options
| author | David E. Box <david.e.box@linux.intel.com> | 2023-11-30 01:21:20 +0300 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-12-04 16:53:43 +0300 |
| commit | e97ec7f621fbfdce07bf1b98a26883ee19281747 (patch) | |
| tree | 3f88a0283e17f7829dc71a89cd35e3e2bb159e1f /drivers/platform/x86/intel/pmt | |
| parent | 4edbd117ba3f7beacfb439aad60e8a5de77114b4 (diff) | |
| download | linux-e97ec7f621fbfdce07bf1b98a26883ee19281747.tar.xz | |
platform/x86/intel/vsec: Add base address field
Some devices may emulate PCI VSEC capabilities in MMIO. In such cases the
BAR is not readable from a config space. Provide a field for drivers to
indicate the base address to be used.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231129222132.2331261-9-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86/intel/pmt')
| -rw-r--r-- | drivers/platform/x86/intel/pmt/class.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/platform/x86/intel/pmt/class.c b/drivers/platform/x86/intel/pmt/class.c index 2ad91d2fd954..32608baaa56c 100644 --- a/drivers/platform/x86/intel/pmt/class.c +++ b/drivers/platform/x86/intel/pmt/class.c @@ -160,10 +160,11 @@ static struct class intel_pmt_class = { static int intel_pmt_populate_entry(struct intel_pmt_entry *entry, struct intel_pmt_header *header, - struct device *dev, + struct intel_vsec_device *ivdev, struct resource *disc_res) { - struct pci_dev *pci_dev = to_pci_dev(dev->parent); + struct pci_dev *pci_dev = ivdev->pcidev; + struct device *dev = &ivdev->auxdev.dev; u8 bir; /* @@ -215,6 +216,13 @@ static int intel_pmt_populate_entry(struct intel_pmt_entry *entry, break; case ACCESS_BARID: + /* Use the provided base address if it exists */ + if (ivdev->base_addr) { + entry->base_addr = ivdev->base_addr + + GET_ADDRESS(header->base_offset); + break; + } + /* * If another BAR was specified then the base offset * represents the offset within that BAR. SO retrieve the @@ -319,7 +327,7 @@ int intel_pmt_dev_create(struct intel_pmt_entry *entry, struct intel_pmt_namespa if (ret) return ret; - ret = intel_pmt_populate_entry(entry, &header, dev, disc_res); + ret = intel_pmt_populate_entry(entry, &header, intel_vsec_dev, disc_res); if (ret) return ret; |