1 files changed, 15 insertions, 0 deletions

diff --git a/include/asm-sparc64/head.h b/include/asm-sparc64/head.h
index 0abd3a674e8f..67960a751f4d 100644
--- a/include/asm-sparc64/head.h
+++ b/include/asm-sparc64/head.h
@@ -4,12 +4,21 @@
 
 #include <asm/pstate.h>
 
+        /* wrpr %g0, val, %gl */
+#define SET_GL(val)     \
+        .word   0xa1902000 | val
+
+        /* rdpr %gl, %gN */
+#define GET_GL_GLOBAL(N)        \
+        .word   0x81540000 | (N << 25)
+
 #define KERNBASE        0x400000
 
 #define PTREGS_OFF      (STACK_BIAS + STACKFRAME_SZ)
 
 #define __CHEETAH_ID    0x003e0014
 #define __JALAPENO_ID   0x003e0016
+#define __SERRANO_ID    0x003e0022
 
 #define CHEETAH_MANUF           0x003e
 #define CHEETAH_IMPL            0x0014 /* Ultra-III   */
@@ -19,6 +28,12 @@
 #define PANTHER_IMPL            0x0019 /* Ultra-IV+   */
 #define SERRANO_IMPL            0x0022 /* Ultra-IIIi+ */
 
+#define BRANCH_IF_SUN4V(tmp1,label)             \
+        sethi   %hi(is_sun4v), %tmp1;           \
+        lduw    [%tmp1 + %lo(is_sun4v)], %tmp1; \
+        brnz,pn %tmp1, label;                   \
+         nop
+
 #define BRANCH_IF_CHEETAH_BASE(tmp1,tmp2,label) \
         rdpr    %ver, %tmp1;                    \
         sethi   %hi(__CHEETAH_ID), %tmp2;       \