commit 4ff7ac417d4b628c23df3ae8301d17e29e6e8f16
author David S. Miller <davem@sunset.davemloft.net> Thu Feb 16 16:22:26 2006 -0800
committer David S. Miller <davem@sunset.davemloft.net> Mon Mar 20 01:13:18 2006 -0800
tree 8a0ad85722f0e927ac6c1388032481636424fb10
parent 22780e23c629303474797d17e7f09ad7721ef55b

[SPARC64]: Add GET_GL_GLOBAL() macro for SUN4V.

So we can read the %gl register for debugging.

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

include/asm-sparc64/head.h

diff --git a/include/asm-sparc64/head.h b/include/asm-sparc64/head.h
index c4ac3e8..67960a7 100644
--- a/include/asm-sparc64/head.h
+++ b/include/asm-sparc64/head.h
@@ -8,6 +8,10 @@
 #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)