diff options
Diffstat (limited to 'arch/x86/include/asm/cpu.h')
| -rw-r--r-- | arch/x86/include/asm/cpu.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cpu.h b/arch/x86/include/asm/cpu.h index 21a05dab7d..5b001bbee2 100644 --- a/arch/x86/include/asm/cpu.h +++ b/arch/x86/include/asm/cpu.h @@ -288,4 +288,13 @@ u32 cpu_get_family_model(void); */ u32 cpu_get_stepping(void); +/** + * cpu_phys_address_size() - Get the physical address size in bits + * + * This is 32 for older CPUs but newer ones may support 36. + * + * @return address size (typically 32 or 36) + */ +int cpu_phys_address_size(void); + #endif |