[SPARC64]: Sanitize %pstate writes for sun4v.

If we're just switching between different alternate global
sets, nop it out on sun4v.  Also, get rid of all of the
alternate global save/restore in the OBP CIF trampoline code.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h
index 8666440c89af..998145b92653 100644
--- a/include/asm-sparc64/cpudata.h
+++ b/include/asm-sparc64/cpudata.h
@@ -78,6 +78,12 @@ struct gl_1insn_patch_entry {
         unsigned int    insn;
 };
 extern struct gl_1insn_patch_entry __gl_1insn_patch, __gl_1insn_patch_end;
+
+struct gl_2insn_patch_entry {
+        unsigned int    addr;
+        unsigned int    insns[2];
+};
+extern struct gl_2insn_patch_entry __gl_2insn_patch, __gl_2insn_patch_end;
 #endif /* !(__ASSEMBLY__) */
 
 #define TRAP_PER_CPU_THREAD     0x00