mirror of
https://github.com/torvalds/linux.git
synced 2024-12-17 16:43:08 +00:00
99935a7a59
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>
27 lines
638 B
C
27 lines
638 B
C
#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
|