patch-1.3.93 linux/arch/sparc/kernel/mp.S

• Lines: 93
• Date: Thu Jan 1 02:00:00 1970
• Orig file: v1.3.92/linux/arch/sparc/kernel/mp.S
• Orig date: Sat Nov 25 02:58:12 1995

diff -u --recursive --new-file v1.3.92/linux/arch/sparc/kernel/mp.S linux/arch/sparc/kernel/mp.S
@@ -1,92 +0,0 @@
-/* $Id: mp.S,v 1.2 1995/11/25 00:58:11 davem Exp $
- * mp.S:  Multiprocessor low-level routines on the Sparc.
- *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- */
-
-#include <asm/cprefix.h>
-#include <asm/head.h>
-#include <asm/psr.h>
-#include <asm/asi.h>
-#include <asm/vaddrs.h>
-#include <asm/contregs.h>
-
-
-	.text
-	.align 4
-
-/* When we start up a cpu for the first time it enters this routine.
- * This initializes the chip from whatever state the prom left it
- * in and sets PIL in %psr to 15, no irqs.
- */
-
-	.globl C_LABEL(sparc_cpu_startup)
-C_LABEL(sparc_cpu_startup):
-	/* Set up a sane %psr -- PIL<0xf> S<0x1> PS<0x1> CWP<0x0> */
-	set	(PSR_PIL | PSR_S | PSR_PS), %g1
-	wr	%g1, 0x0, %psr		! traps off though
-	WRITE_PAUSE
-
-	/* Our %wim is one behind CWP */
-	wr	%g0, 0x2, %wim
-
-	rd	%tbr, %g4
-	or	%g0, 0x3, %g5
-	sll	%g5, 20, %g5
-	and	%g4, %g5, %g4		! Mask cpu-id bits
-
-	/* Give ourselves a stack. */
-	set	PERCPU_VADDR, %g1
-	add	%g1, %g4, %g1
-	set	PERCPU_KSTACK_OFFSET, %g5
-	add	%g1, %g5, %g1
-	set	0x1000, %g5
-	add	%g1, %g5, %g1		! end of stack
-	sub	%g1, (96+96+80), %g1	! set up a frame
-	andn	%g1, 0x7, %g1
-	or	%g1, 0x0, %fp		! bottom of frame
-	add	%fp, (96+80), %sp	! top of frame
-
-	/* Set up per-cpu trap table pointer.  In actuality, the virtual
-	 * address for the trap table on every cpu points to the same
-	 * physical address, this virtual address is only used for cpu
-	 * identification purposes.
-	 */
-#if 0
-/*	set	PERCPU_VADDR, %g1 */
-/*	add	%g1, %g4, %g1 */
-/*	add	%g1, PERCPU_TBR_OFFSET, %g1 */
-	set	C_LABEL(thiscpus_tbr), %g1
-	ld	[%g1], %g1
-	wr	%g1, 0x0, %tbr
-	WRITE_PAUSE
-#else
-	set	C_LABEL(trapbase), %g3
-	wr	%g3, 0x0, %tbr
-	WRITE_PAUSE
-#endif
-
-	/* Turn on traps (PSR_ET). */
-	rd	%psr, %g1
-	wr	%g1, PSR_ET, %psr	! traps on
-
-#if 0
-1:	nop
-	b	1b
-	nop
-#endif
-
-	/* Call C-code to do the rest of the real work. */
-	call	C_LABEL(sparc_cpu_init)
-	nop
-
-	/* Call cpu-idle routine so we can start it up later on. */
-	call	C_LABEL(sparc_cpu_idle)
-	nop
-
-	/* Done... This cpu should me spinning in a test loop.
-	 * If execution gets here, something really bad happened.
-	 */
-	call	C_LABEL(prom_halt)	! Seems reasonable...
-	nop
-