From 8f8f28d969b9db6e73884422cca47c953b806f1d Mon Sep 17 00:00:00 2001
From: Visa Hankala <visa@cvs.openbsd.org>
Date: Thu, 13 Dec 2018 16:35:08 +0000
Subject: Use a faster, more reliable way to figure out how many TLB entries
 are available on RM7000 processors.

From miod@
---
 sys/arch/mips64/mips64/tlbhandler.S | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'sys/arch/mips64')

diff --git a/sys/arch/mips64/mips64/tlbhandler.S b/sys/arch/mips64/mips64/tlbhandler.S
index 4c726a75db4..481e24a17d8 100644
--- a/sys/arch/mips64/mips64/tlbhandler.S
+++ b/sys/arch/mips64/mips64/tlbhandler.S
@@ -1,4 +1,4 @@
-/*	$OpenBSD: tlbhandler.S,v 1.47 2016/12/22 15:33:36 visa Exp $ */
+/*	$OpenBSD: tlbhandler.S,v 1.48 2018/12/13 16:35:07 visa Exp $ */
 
 /*
  * Copyright (c) 1995-2004 Opsycon AB  (www.opsycon.se / www.opsycon.com)
@@ -686,6 +686,18 @@ LEAF(tlb_set_wired, 0)
 	nop
 END(tlb_set_wired)
 
+#ifdef CPU_RM7000
+/*
+ * Similar to tlb_set_wired() above, but returns the value of the random
+ * register.
+ */
+LEAF(tlb_set_wired_get_random, 0)
+	mtc0	a0, COP_0_TLB_WIRED
+	j	ra
+	 mfc0	v0, COP_0_TLB_RANDOM
+END(tlb_set_wired_get_random)
+#endif
+
 /*
  *	Initialize the TLB page mask.
  */
-- 
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