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| author | Benjamin Herrenschmidt | 2019-06-15 02:23:57 +0200 |
|---|---|---|
| committer | Bjorn Helgaas | 2019-06-22 01:11:53 +0200 |
| commit | a78cf9657ba5426f54aa93a067c10d097944c082 (patch) | |
| tree | aa6cbc8b7f5808ff37b46a51ab37de03964fea79 /include/linux/pci.h | |
| parent | Linux 5.2-rc1 (diff) | |
| download | kernel-qcow2-linux-a78cf9657ba5426f54aa93a067c10d097944c082.tar.gz kernel-qcow2-linux-a78cf9657ba5426f54aa93a067c10d097944c082.tar.xz kernel-qcow2-linux-a78cf9657ba5426f54aa93a067c10d097944c082.zip | |
PCI/ACPI: Evaluate PCI Boot Configuration _DSM
Evaluate _DSM Function #5, the "PCI Boot Configuration" function. If the
result is 0, the OS should preserve any resource assignments made by the
firmware.
Link: https://lore.kernel.org/r/20190615002359.29577-2-benh@kernel.crashing.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 4a5a84d7bdd4..5e2b309363a3 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -505,6 +505,8 @@ struct pci_host_bridge { unsigned int native_shpc_hotplug:1; /* OS may use SHPC hotplug */ unsigned int native_pme:1; /* OS may use PCIe PME */ unsigned int native_ltr:1; /* OS may use PCIe LTR */ + unsigned int preserve_config:1; /* Preserve FW resource setup */ + /* Resource alignment requirements */ resource_size_t (*align_resource)(struct pci_dev *dev, const struct resource *res, |