1 files changed, 111 insertions, 0 deletions
diff --git a/sys/sun4v/sun4v/locore.S b/sys/sun4v/sun4v/locore.S
new file mode 100644
index 000000000000..dade43292df7
--- /dev/null
+++ b/sys/sun4v/sun4v/locore.S
@@ -0,0 +1,111 @@
+/*-
+ * Copyright (c) 2001 Jake Burkholder.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+
+	
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$"); 
+
+#include <machine/asi.h>
+#include <machine/asmacros.h>
+#include <machine/pstate.h>
+
+#include "assym.s"
+
+	.register %g2,#ignore
+
+	.globl	kernbase
+	.set	kernbase,KERNBASE
+	
+	.globl	nwin_minus_one
+	.set	nwin_minus_one,7
+	
+/*
+ * void _start(caddr_t metadata, u_long o1, u_long o2, u_long o3,
+ *	       u_long ofw_vec)
+ */
+ENTRY(btext)
+ENTRY(_start)
+	/*
+	 * Initialize misc state to known values.  Interrupts disabled, normal
+	 * globals, windows flushed (cr = 0, cs = nwindows - 1), no clean
+	 * windows, pil 0, and floating point disabled.
+	 */
+	wrpr	%g0, PSTATE_NORMAL, %pstate
+	flushw
+	wrpr	%g0, 0, %cleanwin
+	wrpr	%g0, 0, %pil
+	wr	%g0, 0, %fprs
+
+	/*
+	 * Get onto our per-cpu panic stack, which precedes the struct pcpu in
+	 * the per-cpu page.
+	 */
+	SET(pcpu0 + (PCPU_PAGES * PAGE_SIZE) - PC_SIZEOF, %l1, %l0)
+	sub	%l0, SPOFF + CCFSZ, %sp
+
+	/*
+	 * Do initial bootstrap to setup pmap and thread0.
+	 */
+	call	sparc64_init
+	 nop
+
+	GET_PCB(%g6)
+	/*
+	 * Get onto thread0's kstack.
+	 */
+	ldx	[%g6 + PCB_KSTACK], %sp
+
+	/*
+	 * And away we go.  This doesn't return.
+	 */
+	call	mi_startup
+	 nop
+	sir
+	! NOTREACHED
+END(_start)
+
+/*
+ * void cpu_setregs(struct pcpu *pc)
+ */
+ENTRY(cpu_setregs)
+
+	/*
+	 * Disable interrupts, normal globals.
+	 */
+	mov	%o0, PCPU_REG
+
+	/*
+	 * 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 
+
+	retl
+	 nop
+END(cpu_setregs)