Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

arch/sparc64/Kconfig

@@ -444,6 +444,24 @@ config PRINTER
 	  If you have more than 8 printers, you need to increase the LP_NO
 	  macro in lp.c and the PARPORT_MAX macro in parport.h.
 
+config PPDEV
+	tristate "Support for user-space parallel port device drivers"
+	depends on PARPORT
+	---help---
+	  Saying Y to this adds support for /dev/parport device nodes.  This
+	  is needed for programs that want portable access to the parallel
+	  port, for instance deviceid (which displays Plug-and-Play device
+	  IDs).
+
+	  This is the parallel port equivalent of SCSI generic support (sg).
+	  It is safe to say N to this -- it is not needed for normal printing
+	  or parallel port CD-ROM/disk support.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ppdev.
+
+	  If unsure, say N.
+
 config ENVCTRL
 	tristate "SUNW, envctrl support"
 	depends on PCI

arch/sparc64/kernel/entry.S

@@ -553,23 +553,21 @@ do_ivec:
 	sllx		%g3, 5, %g3
 	or		%g2, %lo(ivector_table), %g2
 	add		%g2, %g3, %g3
-	ldx		[%g3 + 0x08], %g2	/* irq_info */
 	ldub		[%g3 + 0x04], %g4	/* pil */
-	brz,pn		%g2, do_ivec_spurious
-	 mov		1, %g2
-
+	mov		1, %g2
 	sllx		%g2, %g4, %g2
 	sllx		%g4, 2, %g4
+
 	lduw		[%g6 + %g4], %g5	/* g5 = irq_work(cpu, pil) */
 	stw		%g5, [%g3 + 0x00]	/* bucket->irq_chain = g5 */
 	stw		%g3, [%g6 + %g4]	/* irq_work(cpu, pil) = bucket */
 	wr		%g2, 0x0, %set_softint
 	retry
 do_ivec_xcall:
 	mov		0x50, %g1
-
 	ldxa		[%g1 + %g0] ASI_INTR_R, %g1
 	srl		%g3, 0, %g3
+
 	mov		0x60, %g7
 	ldxa		[%g7 + %g0] ASI_INTR_R, %g7
 	stxa		%g0, [%g0] ASI_INTR_RECEIVE
@@ -581,19 +579,6 @@ do_ivec_xcall:
 1:	jmpl		%g3, %g0
 	 nop
 
-do_ivec_spurious:
-	stw		%g3, [%g6 + 0x00]	/* irq_work(cpu, 0) = bucket */
-	rdpr		%pstate, %g5
-
-	wrpr		%g5, PSTATE_IG | PSTATE_AG, %pstate
-	sethi		%hi(109f), %g7
-	ba,pt		%xcc, etrap
-109:	 or		%g7, %lo(109b), %g7
-	call		catch_disabled_ivec
-	 add		%sp, PTREGS_OFF, %o0
-	ba,pt		%xcc, rtrap
-	 clr		%l6
-
 	.globl		save_alternate_globals
 save_alternate_globals: /* %o0 = save_area */
 	rdpr		%pstate, %o5