From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 7 Jun 2007 07:44:32 +0000 (+0100)
Subject: [MIPS] AP/SP: Avoid triggering the 34K E125 performance issue
X-Git-Tag: v2.6.22~12^2~6
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6fb88ce04f545ca7da15a7b447783bb7a4615511;p=linux-2.6

[MIPS] AP/SP: Avoid triggering the 34K E125 performance issue

C0_status doesn't need to be initialized at this point anyway; the register
will be initialized later.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index c9ee9d2d58..9e66354dee 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -1436,10 +1436,6 @@ static int __init vpe_module_init(void)
 			write_vpe_c0_vpecontrol(read_vpe_c0_vpecontrol() & ~VPECONTROL_TE);
 
 			if (i != 0) {
-				write_vpe_c0_status((read_c0_status() &
-						     ~(ST0_IM | ST0_IE | ST0_KSU))
-						    | ST0_CU0);
-
 				/*
 				 * Set config to be the same as vpe0,
 				 * particularly kseg0 coherency alg