From c8baa23e56bd87cd702bbdbc2a7d36c115769d75 Mon Sep 17 00:00:00 2001
From: Marcel Moolenaar <marcel@FreeBSD.org>
Date: Thu, 24 Jul 2003 07:41:08 +0000
Subject: [PATCH] Implement alpha_pal_wrunique() and alpha_pal_rdunique(). Both
 are used to set and get the thread pointer. Note that a context switch will
 automaticly save and restore the thread pointer.

---
 sys/alpha/include/alpha_cpu.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/sys/alpha/include/alpha_cpu.h b/sys/alpha/include/alpha_cpu.h
index d1b34366a23..32b00ffaf10 100644
--- a/sys/alpha/include/alpha_cpu.h
+++ b/sys/alpha/include/alpha_cpu.h
@@ -458,6 +458,23 @@ alpha_pal_rdval(void)
 	return v0;
 }
 
+static __inline void
+alpha_pal_wrunique(u_int64_t tp)
+{
+	register u_int64_t a0 __asm__("$16") = tp;
+	__asm__ __volatile__("call_pal 0x9f # PAL_wrunique"
+	    : "+r" (a0) : : "$1", "$22", "$23", "$24", "$25");
+}
+ 
+static __inline u_int64_t
+alpha_pal_rdunique(void)
+{
+	register u_int64_t v0 __asm__("$0");
+	__asm__ __volatile__("call_pal 0x9e # PAL_rdunique"
+	    : "=r" (v0) : : "$1", "$22", "$23", "$24", "$25");
+        return (v0);
+}
+ 
 static __inline void
 alpha_pal_tbi(u_int64_t op, u_int64_t va)
 {