diff options
Diffstat (limited to 'arch/x86/include/asm/cpu.h')
| -rw-r--r-- | arch/x86/include/asm/cpu.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cpu.h b/arch/x86/include/asm/cpu.h index c839291..ebc74ad 100644 --- a/arch/x86/include/asm/cpu.h +++ b/arch/x86/include/asm/cpu.h @@ -151,6 +151,11 @@ static inline int flag_is_changeable_p(uint32_t flag) return ((f1^f2) & flag) != 0; } +static inline void mfence(void) +{ + __asm__ __volatile__("mfence" : : : "memory"); +} + /** * cpu_enable_paging_pae() - Enable PAE-paging * @@ -192,6 +197,20 @@ const char *cpu_vendor_name(int vendor); char *cpu_get_name(char *name); /** + * +* x86_cpu_get_desc() - Get a description string for an x86 CPU +* +* This uses cpu_get_name() and is suitable to use as the get_desc() method for +* the CPU uclass. +* +* @dev: Device to check (UCLASS_CPU) +* @buf: Buffer to place string +* @size: Size of string space +* @return 0 if OK, -ENOSPC if buffer is too small, other -ve on error +*/ +int x86_cpu_get_desc(struct udevice *dev, char *buf, int size); + +/** * cpu_call64() - Jump to a 64-bit Linux kernel (internal function) * * The kernel is uncompressed and the 64-bit entry point is expected to be |