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authorJiang Liu <jiang.liu@huawei.com>2012-06-22 14:55:16 +0800
committerBjorn Helgaas <bhelgaas@google.com>2012-06-22 15:16:51 -0600
commitf4b57a3b4352f72e461e362cb25917e28bdba80f (patch)
tree645b4c86120578cae02e0e4065ba2b39d77bb539 /include/acpi
parent9c95111b330d2ddf851444528a7608f267cbb50c (diff)
downloadlinux-f4b57a3b4352f72e461e362cb25917e28bdba80f.tar.bz2
PCI/ACPI: provide MMCONFIG address for PCI host bridges
This patch provide MMCONFIG address for PCI host bridges, which will be used to support host bridge hotplug. It gets MMCONFIG address by evaluating _CBA method if available. Reviewed-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jiang Liu <liuj97@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/acnames.h1
-rw-r--r--include/acpi/acpi_bus.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h
index 38f508816e4a..b177f97f53b6 100644
--- a/include/acpi/acnames.h
+++ b/include/acpi/acnames.h
@@ -62,6 +62,7 @@
#define METHOD_NAME__AEI "_AEI"
#define METHOD_NAME__PRW "_PRW"
#define METHOD_NAME__SRS "_SRS"
+#define METHOD_NAME__CBA "_CBA"
/* Method names - these methods must appear at the namespace root */
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 9e6e1c6eb60a..457974073994 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -401,6 +401,7 @@ struct acpi_pci_root {
u32 osc_support_set; /* _OSC state of support bits */
u32 osc_control_set; /* _OSC state of control bits */
+ phys_addr_t mcfg_addr;
};
/* helper */