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/ioport.h>
   5#include <linux/pci.h>
   6
   7struct amd_nb_bus_dev_range {
   8        u8 bus;
   9        u8 dev_base;
  10        u8 dev_limit;
  11};
  12
  13extern const struct pci_device_id amd_nb_misc_ids[];
  14extern const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[];
  15
  16extern bool early_is_amd_nb(u32 value);
  17extern struct resource *amd_get_mmconfig_range(struct resource *res);
  18extern int amd_cache_northbridges(void);
  19extern void amd_flush_garts(void);
  20extern int amd_numa_init(void);
  21extern int amd_get_subcaches(int);
  22extern int amd_set_subcaches(int, int);
  23
  24struct amd_l3_cache {
  25        unsigned indices;
  26        u8       subcaches[4];
  27};
  28
  29struct amd_northbridge {
  30        struct pci_dev *misc;
  31        struct pci_dev *link;
  32        struct amd_l3_cache l3_cache;
  33};
  34
  35struct amd_northbridge_info {
  36        u16 num;
  37        u64 flags;
  38        struct amd_northbridge *nb;
  39};
  40extern struct amd_northbridge_info amd_northbridges;
  41
  42#define AMD_NB_GART                     BIT(0)
  43#define AMD_NB_L3_INDEX_DISABLE         BIT(1)
  44#define AMD_NB_L3_PARTITIONING          BIT(2)
  45
  46#ifdef CONFIG_AMD_NB
  47
  48static inline u16 amd_nb_num(void)
  49{
  50        return amd_northbridges.num;
  51}
  52
  53static inline bool amd_nb_has_feature(unsigned feature)
  54{
  55        return ((amd_northbridges.flags & feature) == feature);
  56}
  57
  58static inline struct amd_northbridge *node_to_amd_nb(int node)
  59{
  60        return (node < amd_northbridges.num) ? &amd_northbridges.nb[node] : NULL;
  61}
  62
  63#else
  64
  65#define amd_nb_num(x)           0
  66#define amd_nb_has_feature(x)   false
  67#define node_to_amd_nb(x)       NULL
  68
  69#endif
  70
  71
  72#endif /* _ASM_X86_AMD_NB_H */
  73