Reviewed-by: Bin Meng bmeng.cn@gmail.com
On Tue, Nov 11, 2014 at 9:00 AM, Simon Glass sjg@chromium.org wrote:
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
2.1.0.rc2.206.gedb03e5
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