From b70c0fa1613c4f69b4a340a0e2bee387560ebbb1 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 31 Jan 2006 18:32:04 -0800
Subject: [SPARC64]: Preload TSB entries from update_mmu_cache().

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc64/kernel/tsb.S | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'arch/sparc64/kernel')

diff --git a/arch/sparc64/kernel/tsb.S b/arch/sparc64/kernel/tsb.S
index fe266bad0a28..08405ed69288 100644
--- a/arch/sparc64/kernel/tsb.S
+++ b/arch/sparc64/kernel/tsb.S
@@ -126,6 +126,23 @@ winfix_trampoline:
 	wrpr	%g3, %tnpc			! Write it into TNPC
 	done					! Trap return
 
+	/* Insert an entry into the TSB.
+	 *
+	 * %o0: TSB entry pointer
+	 * %o1: tag
+	 * %o2:	pte
+	 */
+	.align	32
+	.globl	tsb_insert
+tsb_insert:
+	rdpr	%pstate, %o5
+	wrpr	%o5, PSTATE_IE, %pstate
+	TSB_LOCK_TAG(%o0, %g2, %g3)
+	TSB_WRITE(%o0, %o2, %o1)
+	wrpr	%o5, %pstate
+	retl
+	 nop
+
 	/* Reload MMU related context switch state at
 	 * schedule() time.
 	 *
-- 
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