Add a function to get the stack pointer and another to halt the CPU.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: - Remove the cpuid functions since they were already added in another patch
arch/x86/include/asm/processor.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index bb3172f..b2854a9 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -30,4 +30,23 @@ enum {
#define X86_GDT_SIZE (X86_GDT_NUM_ENTRIES * X86_GDT_ENTRY_SIZE)
+#ifndef __ASSEMBLY__ + +static inline __attribute__((always_inline)) void cpu_hlt(void) +{ + asm("hlt"); +} + +static inline ulong cpu_get_sp(void) +{ + ulong result; + + asm volatile( + "mov %%esp, %%eax" + : "=a" (result)); + return result; +} + +#endif /* __ASSEMBLY__ */ + #endif