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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/x86/include/asm/amd_nb.h | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/x86/include/asm/amd_nb.h')
-rw-r--r-- | arch/x86/include/asm/amd_nb.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h new file mode 100644 index 00000000..49ad773f --- /dev/null +++ b/arch/x86/include/asm/amd_nb.h @@ -0,0 +1,72 @@ +#ifndef _ASM_X86_AMD_NB_H +#define _ASM_X86_AMD_NB_H + +#include <linux/ioport.h> +#include <linux/pci.h> + +struct amd_nb_bus_dev_range { + u8 bus; + u8 dev_base; + u8 dev_limit; +}; + +extern const struct pci_device_id amd_nb_misc_ids[]; +extern const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[]; + +extern bool early_is_amd_nb(u32 value); +extern struct resource *amd_get_mmconfig_range(struct resource *res); +extern int amd_cache_northbridges(void); +extern void amd_flush_garts(void); +extern int amd_numa_init(void); +extern int amd_get_subcaches(int); +extern int amd_set_subcaches(int, int); + +struct amd_l3_cache { + unsigned indices; + u8 subcaches[4]; +}; + +struct amd_northbridge { + struct pci_dev *misc; + struct pci_dev *link; + struct amd_l3_cache l3_cache; +}; + +struct amd_northbridge_info { + u16 num; + u64 flags; + struct amd_northbridge *nb; +}; +extern struct amd_northbridge_info amd_northbridges; + +#define AMD_NB_GART BIT(0) +#define AMD_NB_L3_INDEX_DISABLE BIT(1) +#define AMD_NB_L3_PARTITIONING BIT(2) + +#ifdef CONFIG_AMD_NB + +static inline u16 amd_nb_num(void) +{ + return amd_northbridges.num; +} + +static inline bool amd_nb_has_feature(unsigned feature) +{ + return ((amd_northbridges.flags & feature) == feature); +} + +static inline struct amd_northbridge *node_to_amd_nb(int node) +{ + return (node < amd_northbridges.num) ? &amd_northbridges.nb[node] : NULL; +} + +#else + +#define amd_nb_num(x) 0 +#define amd_nb_has_feature(x) false +#define node_to_amd_nb(x) NULL + +#endif + + +#endif /* _ASM_X86_AMD_NB_H */ |