diff options
| author | Yinghai Lu <yinghai@kernel.org> | 2009-10-05 08:54:24 +0400 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-11-04 19:47:09 +0300 |
| commit | 99935a7a59eaca0292c1a5880e10bae03f4a5e3d (patch) | |
| tree | 44d7265182ad7e1ee795a420088bc99d0096b62c /arch/x86/pci/bus_numa.h | |
| parent | 91d3f9bacdb4950d2f79fe2ba296aa249f60d06c (diff) | |
| download | linux-99935a7a59eaca0292c1a5880e10bae03f4a5e3d.tar.xz | |
x86/PCI: read root resources from IOH on Intel
For intel systems with multi IOH, we should read peer root resources
directly from PCI config space, and don't trust _CRS.
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/x86/pci/bus_numa.h')
| -rw-r--r-- | arch/x86/pci/bus_numa.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/x86/pci/bus_numa.h b/arch/x86/pci/bus_numa.h new file mode 100644 index 000000000000..4ff126a3e887 --- /dev/null +++ b/arch/x86/pci/bus_numa.h @@ -0,0 +1,26 @@ +#ifdef CONFIG_X86_64 + +/* + * sub bus (transparent) will use entres from 3 to store extra from + * root, so need to make sure we have enought slot there, Should we + * increase PCI_BUS_NUM_RESOURCES? + */ +#define RES_NUM 16 +struct pci_root_info { + char name[12]; + unsigned int res_num; + struct resource res[RES_NUM]; + int bus_min; + int bus_max; + int node; + int link; +}; + +/* 4 at this time, it may become to 32 */ +#define PCI_ROOT_NR 4 +extern int pci_root_num; +extern struct pci_root_info pci_root_info[PCI_ROOT_NR]; + +extern void update_res(struct pci_root_info *info, size_t start, + size_t end, unsigned long flags, int merge); +#endif |