diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/amd/common/block/pci/pcie_gpp.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/soc/amd/common/block/pci/pcie_gpp.c b/src/soc/amd/common/block/pci/pcie_gpp.c index 0ce3268501..0f983d04be 100644 --- a/src/soc/amd/common/block/pci/pcie_gpp.c +++ b/src/soc/amd/common/block/pci/pcie_gpp.c @@ -47,6 +47,20 @@ static void acpi_device_write_gpp_pci_dev(const struct device *dev) acpigen_pop_len(); /* Scope */ } +/* Latency tolerance reporting, max snoop/non-snoop latency value 1.049ms */ +#define PCIE_LTR_MAX_LATENCY_1049US 0x1001 + +static void pcie_get_ltr_max_latencies(u16 *max_snoop, u16 *max_nosnoop) +{ + *max_snoop = PCIE_LTR_MAX_LATENCY_1049US; + *max_nosnoop = PCIE_LTR_MAX_LATENCY_1049US; +} + +static struct pci_operations pcie_ops = { + .get_ltr_max_latencies = pcie_get_ltr_max_latencies, + .set_subsystem = pci_dev_set_subsystem, +}; + struct device_operations amd_internal_pcie_gpp_ops = { .read_resources = pci_bus_read_resources, .set_resources = pci_dev_set_resources, @@ -65,4 +79,5 @@ struct device_operations amd_external_pcie_gpp_ops = { .reset_bus = pci_bus_reset, .acpi_name = pcie_gpp_acpi_name, .acpi_fill_ssdt = acpi_device_write_gpp_pci_dev, + .ops_pci = &pcie_ops, }; |