LXR linux/arch/x86/include/asm/amd

   1#ifndef _ASM_X86_AMD_NB_H
   2#define _ASM_X86_AMD_NB_H
   3
   4#include <linux/pci.h>
   5
   6struct amd_nb_bus_dev_range {
   7        u8 bus;
   8        u8 dev_base;
   9        u8 dev_limit;
  10};
  11
  12extern const struct pci_device_id amd_nb_misc_ids[];
  13extern const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[];
  14
  15extern bool early_is_amd_nb(u32 value);
  16extern int amd_cache_northbridges(void);
  17extern void amd_flush_garts(void);
  18extern int amd_numa_init(void);
  19extern int amd_get_subcaches(int);
  20extern int amd_set_subcaches(int, int);
  21
  22struct amd_northbridge {
  23        struct pci_dev *misc;
  24        struct pci_dev *link;
  25};
  26
  27struct amd_northbridge_info {
  28        u16 num;
  29        u64 flags;
  30        struct amd_northbridge *nb;
  31};
  32extern struct amd_northbridge_info amd_northbridges;
  33
  34#define AMD_NB_GART                     BIT(0)
  35#define AMD_NB_L3_INDEX_DISABLE         BIT(1)
  36#define AMD_NB_L3_PARTITIONING          BIT(2)
  37
  38#ifdef CONFIG_AMD_NB
  39
  40static inline u16 amd_nb_num(void)
  41{
  42        return amd_northbridges.num;
  43}
  44
  45static inline bool amd_nb_has_feature(unsigned feature)
  46{
  47        return ((amd_northbridges.flags & feature) == feature);
  48}
  49
  50static inline struct amd_northbridge *node_to_amd_nb(int node)
  51{
  52        return (node < amd_northbridges.num) ? &amd_northbridges.nb[node] : NULL;
  53}
  54
  55#else
  56
  57#define amd_nb_num(x)           0
  58#define amd_nb_has_feature(x)   false
  59#define node_to_amd_nb(x)       NULL
  60
  61#endif
  62
  63
  64#endif /* _ASM_X86_AMD_NB_H */
  65