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| author | Simon Glass <sjg@chromium.org> | 2020-09-22 12:45:26 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-09-25 11:27:21 +0800 |
| commit | aec7c1c565b0455a0523e8d486294843fd93bca9 (patch) | |
| tree | 891c2349409006bbf39398864752e043f31d22a6 /arch/x86/include | |
| parent | c90b302d5f824a494905324a0abf6e69b7dc49f0 (diff) | |
| download | u-boot-aec7c1c565b0455a0523e8d486294843fd93bca9.tar.gz u-boot-aec7c1c565b0455a0523e8d486294843fd93bca9.tar.xz u-boot-aec7c1c565b0455a0523e8d486294843fd93bca9.zip | |
x86: cpu: Report address width from cpu_get_info()
Add support for this new field in the common code used by most x86 CPU
drivers.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86/include')
| -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 |