From 9a897f488760e8afa7aa8039a57c9b21cfbbf68d Mon Sep 17 00:00:00 2001
From: jhb <jhb@FreeBSD.org>
Date: Tue, 17 Apr 2001 02:46:13 +0000
Subject: [PATCH] Add a cpu_throw() function that secondary CPU's can use for
 their first context switch.

---
 sys/alpha/alpha/swtch.s | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/sys/alpha/alpha/swtch.s b/sys/alpha/alpha/swtch.s
index 1935c3ee3d6d..7c121654cdbd 100644
--- a/sys/alpha/alpha/swtch.s
+++ b/sys/alpha/alpha/swtch.s
@@ -86,6 +86,16 @@ Lsavectx1: LDGP(pv)
 
 IMPORT(Lev1map, 8)
 
+/*
+ * cpu_throw()
+ * Switch to a new task discarding our current state.
+ */
+LEAF(cpu_throw, 0)
+	LDGP(pv)
+	mov	zero, s0			/* ensure newproc != oldproc */
+	CALL(Lcs1)
+	END(cpu_throw)
+
 /*
  * cpu_switch()
  * Find the highest priority process and resume it.