diff options
| author | Tom Rini <[email protected]> | 2025-01-22 16:08:34 -0600 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2025-01-22 17:08:47 -0600 |
| commit | a3b71cc6f5cc74d4edc5808790a3d2999ea3f7fe (patch) | |
| tree | bf148f9145392c695ffb623ef8c307a4a3fe8e82 /include/cpu.h | |
| parent | 2eed5a1ff36217372e19f7513bd07077fc76718a (diff) | |
| parent | 8985ff56b16dc6c04da2c96d48e7f6f54d04e3ff (diff) | |
Merge patch series "upl: Prerequite patches for updated spec"
Simon Glass <[email protected]> says:
The current UPL spec[1] has been tidied up and improved over the last
year, since U-Boot's original UPL support was written.
This series includes some prerequisite patches needed for the real UPL
patches. It is split from [2]
[1] https://github.com/UniversalPayload/spec/tree/3f1450d
[2] https://patchwork.ozlabs.org/project/uboot/list/?series=438574&state=*
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'include/cpu.h')
| -rw-r--r-- | include/cpu.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/cpu.h b/include/cpu.h index 0018910d61f..d0cd104c05a 100644 --- a/include/cpu.h +++ b/include/cpu.h @@ -179,4 +179,18 @@ struct udevice *cpu_get_current_dev(void); * @return 0 if OK, -ve on error */ int cpu_release_core(const struct udevice *dev, phys_addr_t addr); + +/** + * cpu_phys_address_size() - Get the physical-address size for the CPU + * + * x86 CPUs have a setting which indicates how many bits of address space are + * available on the CPU. This is 32 for older CPUs but newer ones may support 36 + * or more. + * + * For non-x86 CPUs the result may simply be 32 for 32-bit CPUS or 64 for 64-bit + * + * Return: address size (typically 32 or 36) + */ +int cpu_phys_address_size(void); + #endif |