S3 code in vendorcode folder.

Change the ExecuteFinalHltInstruction to assembly code. so we can make
sure the code can run stackless.

Change-Id: I783ced6cf7c5bc29c12a37aef29077e610d8957d
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: zbao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/622
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 8 insertions, 2 deletions

diff --git a/src/vendorcode/amd/agesa/f14/Include/gcc-intrin.h b/src/vendorcode/amd/agesa/f14/Include/gcc-intrin.h
index 58438b9815..5ce3ee3d23 100644
--- a/src/vendorcode/amd/agesa/f14/Include/gcc-intrin.h
+++ b/src/vendorcode/amd/agesa/f14/Include/gcc-intrin.h
@@ -305,7 +305,9 @@ static __inline__ __attribute__((always_inline)) unsigned long __readcr0(void)
   unsigned long value;
   __asm__ __volatile__ (
     "mov %%cr0, %[value]" 
-    : [value] "=a" (value));
+    : [value] "=a" (value)
+    :
+    : "memory");
   return value;
 }
 
@@ -379,6 +381,7 @@ static __inline__ __attribute__((always_inline)) void __writecr0(unsigned long D
     "mov %%eax, %%cr0"
     : 
     : "a" (Data)
+    : "memory"
     );
 }
  
@@ -508,13 +511,16 @@ static __inline__ __attribute__((always_inline)) void __debugbreak(void)
   __asm__ __volatile__ ("int3");
 }
 
+static __inline__ __attribute__((always_inline)) void __invd(void)
+{
+  __asm__ __volatile__ ("invd");
+}
 
 static __inline__ __attribute__((always_inline)) void __wbinvd(void)
 {
   __asm__ __volatile__ ("wbinvd");
 }
 
-
 static __inline__ __attribute__((always_inline)) void __lidt(void *Source)
 {
   __asm__ __volatile__("lidt %0" : : "m"(*(short*)Source));