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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-22 16:43:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-22 16:43:01 -0700 |
| commit | b3ba283d831fed464a1f9c18e7ee82b020ab1a1e (patch) | |
| tree | de8e90034536ce5eff57193113ab537dac3777c6 /arch/x86/include | |
| parent | d43e4f44ba47cace184c78f99723d80dea3e22e0 (diff) | |
| parent | cc2749e4095cbbcb35518fb2db5e926b85c3f25f (diff) | |
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 CPU features from Ingo Molnar:
"Various CPU feature support related changes: in particular the
/proc/cpuinfo model name sanitization change should be monitored, it
has a chance to break stuff. (but really shouldn't and there are no
regression reports)"
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu/amd: Give access to the number of nodes in a physical package
x86/cpu: Trim model ID whitespace
x86/cpu: Strip any /proc/cpuinfo model name field whitespace
x86/cpu/amd: Set X86_FEATURE_EXTD_APICID for future processors
x86/gart: Check for GART support before accessing GART registers
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/amd_nb.h | 11 | ||||
| -rw-r--r-- | arch/x86/include/asm/processor.h | 1 |
2 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h index aaac3b2fb746..1a5da2e63aee 100644 --- a/arch/x86/include/asm/amd_nb.h +++ b/arch/x86/include/asm/amd_nb.h @@ -98,11 +98,22 @@ static inline u16 amd_get_node_id(struct pci_dev *pdev) return 0; } +static inline bool amd_gart_present(void) +{ + /* GART present only on Fam15h, upto model 0fh */ + if (boot_cpu_data.x86 == 0xf || boot_cpu_data.x86 == 0x10 || + (boot_cpu_data.x86 == 0x15 && boot_cpu_data.x86_model < 0x10)) + return true; + + return false; +} + #else #define amd_nb_num(x) 0 #define amd_nb_has_feature(x) false #define node_to_amd_nb(x) NULL +#define amd_gart_present(x) false #endif diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 23ba6765b718..9aa52fd13a78 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -946,6 +946,7 @@ static inline int mpx_disable_management(struct task_struct *tsk) #endif /* CONFIG_X86_INTEL_MPX */ extern u16 amd_get_nb_id(int cpu); +extern u32 amd_get_nodes_per_socket(void); static inline uint32_t hypervisor_cpuid_base(const char *sig, uint32_t leaves) { |