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From: Kip Macy <kmacy@FreeBSD.org>
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Subject: PERFORCE change 94956 for review
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http://perforce.freebsd.org/chv.cgi?CH=94956

Change 94956 by kmacy@kmacy_storage:sun4v_rwbuf on 2006/04/10 22:33:07

	don't enable interrupts in _start - silly vestige from sparc64
	fix scratch register comment, pcb to rarely used in traps to warrant
	scratch register

Affected files ...

.. //depot/projects/kmacy_sun4v/src/sys/sun4v/sun4v/locore.S#10 edit

Differences ...

==== //depot/projects/kmacy_sun4v/src/sys/sun4v/sun4v/locore.S#10 (text+ko) ====

@@ -66,11 +66,6 @@
 	sub	%l0, SPOFF + CCFSZ, %sp
 
 	/*
-	 * Enable interrupts.
-	 */
-	wrpr	%g0, PSTATE_KERNEL, %pstate
-
-	/*
 	 * Do initial bootstrap to setup pmap and thread0.
 	 */
 	call	sparc64_init
@@ -99,14 +94,12 @@
 	/*
 	 * Disable interrupts, normal globals.
 	 */
-	wrpr	%g0, PSTATE_NORMAL, %pstate
-
 	mov	%o0, PCPU_REG
 
 	/*
-	 * store PCB_REG and PCPU_REG into their respective scratchpad registers
-	 * this allows us to retrieve them in the trap handlers - where we receive
-	 * a new set of globals
+	 * store PCPU_REG into its scratchpad register
+	 * this allows us to retrieve it in the trap handlers - 
+	 * where we receive a new set of globals
 	 */
 	mov	SCRATCH_REG_PCPU, %g2 
 	stxa	PCPU_REG, [%g2]ASI_SCRATCHPAD