Merge agluck-lia64.sc.intel.com:/data/home/aegl/BK/Linus

into agluck-lia64.sc.intel.com:/data/home/aegl/BK/linux-ia64-release-2.6.9

arch/ia64/Kconfig

@@ -76,6 +76,12 @@ config IA64_HP_ZX1
 
 config IA64_SGI_SN2
 	bool "SGI-SN2"
+	help
+	  Selecting this option will optimize the kernel for use on sn2 based
+	  systems, but the resulting kernel binary will not run on other
+	  types of ia64 systems.  If you have an SGI Altix system, it's safe
+	  to select this option.  If in doubt, select ia64 generic support
+	  instead.
 
 config IA64_HP_SIM
 	bool "Ski-simulator"

arch/ia64/kernel/minstate.h

@@ -54,8 +54,7 @@
 (pUStk)	mov ar.rsc=0x3;		/* set eager mode, pl 0, little-endian, loadrs=0 */		\
 
 #define MINSTATE_END_SAVE_MIN_PHYS								\
-	or r12=r12,r14;		/* make sp a kernel virtual address */				\
-	or r13=r13,r14;		/* make `current' a kernel virtual address */			\
+	dep r12=-1,r12,61,3;		/* make sp a kernel virtual address */			\
 	;;
 
 #ifdef MINSTATE_VIRT
@@ -65,7 +64,7 @@
 #endif
 
 #ifdef MINSTATE_PHYS
-# define MINSTATE_GET_CURRENT(reg)	mov reg=IA64_KR(CURRENT);; dep reg=0,reg,61,3
+# define MINSTATE_GET_CURRENT(reg)	mov reg=IA64_KR(CURRENT);; tpa reg=reg
 # define MINSTATE_START_SAVE_MIN	MINSTATE_START_SAVE_MIN_PHYS
 # define MINSTATE_END_SAVE_MIN		MINSTATE_END_SAVE_MIN_PHYS
 #endif
@@ -172,7 +171,6 @@
 	;;											\
 .mem.offset 0,0; st8.spill [r16]=r15,16;							\
 .mem.offset 8,0; st8.spill [r17]=r14,16;							\
-	dep r14=-1,r0,61,3;									\
 	;;											\
 .mem.offset 0,0; st8.spill [r16]=r2,16;								\
 .mem.offset 8,0; st8.spill [r17]=r3,16;								\

arch/ia64/sn/kernel/sn2/prominfo_proc.c

@@ -222,7 +222,7 @@ dump_version(char *page, unsigned long *fit)
 {
 	int nentries;
 	int fentry;
-	unsigned long qw;
+	unsigned long qw = 0;
 	int len;
 	nasid_t nasid = NASID_GET(fit);
 

include/asm-ia64/mca_asm.h

@@ -162,9 +162,6 @@
 	;;							\
 	srlz.d;							\
 	mov	r13 = ar.k6;					\
-	;;							\
-	DATA_PA_TO_VA(r13,temp1);				\
-	;;							\
 	mov	temp2 = ar.bspstore;				\
 	;;							\
 	DATA_PA_TO_VA(temp2,temp1);				\