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#ifndef __ECAM_H
#define __ECAM_H
#ifdef __KERNEL__
#include <linux/types.h>
#include <linux/acpi.h>
/* "PCI MMCONFIG %04x [bus %02x-%02x]" */
#define PCI_MMCFG_RESOURCE_NAME_LEN (22 + 4 + 2 + 2)
struct pci_mmcfg_region {
struct list_head list;
struct resource res;
u64 address;
char __iomem *virt;
u16 segment;
u8 start_bus;
u8 end_bus;
char name[PCI_MMCFG_RESOURCE_NAME_LEN];
bool hot_added;
};
struct pci_mcfg_fixup {
const struct dmi_system_id *system;
int (*match)(struct pci_mcfg_fixup *, struct acpi_pci_root *);
struct pci_ops *ops;
int domain;
int bus_num;
};
#define PCI_MCFG_DOMAIN_ANY -1
#define PCI_MCFG_BUS_ANY -1
/* Designate a routine to fix up buggy MCFG */
#define DECLARE_ACPI_MCFG_FIXUP(system, match, ops, dom, bus) \
static const struct pci_mcfg_fixup __mcfg_fixup_##system##dom##bus\
__used __attribute__((__section__(".acpi_fixup_mcfg"), \
aligned((sizeof(void *))))) = \
{ system, match, ops, dom, bus };
struct pci_mmcfg_region *pci_mmconfig_lookup(int segment, int bus);
struct pci_mmcfg_region *pci_mmconfig_alloc(int segment, int start,
int end, u64 addr);
int pci_mmconfig_inject(struct pci_mmcfg_region *cfg);
struct pci_mmcfg_region *pci_mmconfig_add(int segment, int start,
int end, u64 addr);
void list_add_sorted(struct pci_mmcfg_region *new);
void free_all_mmcfg(void);
int pci_mmconfig_delete(u16 seg, u8 start, u8 end);
/* Arch specific calls */
int pci_mmcfg_arch_init(void);
void pci_mmcfg_arch_free(void);
int pci_mmcfg_arch_map(struct pci_mmcfg_region *cfg);
void pci_mmcfg_arch_unmap(struct pci_mmcfg_region *cfg);
extern struct list_head pci_mmcfg_list;
#define PCI_MMCFG_BUS_OFFSET(bus) ((bus) << 20)
#endif /* __KERNEL__ */
#endif /* __ECAM_H */
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