diff options
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/kernel/pci.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c index 8183c9803206..216dff6c5877 100644 --- a/arch/arm64/kernel/pci.c +++ b/arch/arm64/kernel/pci.c @@ -124,8 +124,9 @@ pci_acpi_setup_ecam_mapping(struct acpi_pci_root *root) struct device *dev = &root->device->dev; struct resource *bus_res = &root->secondary; u16 seg = root->segment; - struct pci_config_window *cfg; struct resource cfgres; + struct acpi_device *adev; + struct pci_config_window *cfg; unsigned int bsz; /* Use address from _CBA if present, otherwise lookup MCFG */ @@ -141,6 +142,15 @@ pci_acpi_setup_ecam_mapping(struct acpi_pci_root *root) cfgres.start = root->mcfg_addr + bus_res->start * bsz; cfgres.end = cfgres.start + resource_size(bus_res) * bsz - 1; cfgres.flags = IORESOURCE_MEM; + + adev = acpi_resource_consumer(&cfgres); + if (adev) + dev_info(dev, "ECAM area %pR reserved by %s\n", &cfgres, + dev_name(&adev->dev)); + else + dev_warn(dev, FW_BUG "ECAM area %pR not reserved in ACPI namespace\n", + &cfgres); + cfg = pci_ecam_create(dev, &cfgres, bus_res, &pci_generic_ecam_ops); if (IS_ERR(cfg)) { dev_err(dev, "%04x:%pR error %ld mapping ECAM\n", seg, bus_res, |