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Re: another 4kc machine check.

To: "Kevin D. Kissell" <kevink@mips.com>
Subject: Re: another 4kc machine check.
From: Greg Weeks <greg.weeks@timesys.com>
Date: Tue, 12 Apr 2005 10:52:38 -0400
Cc: Ralf Baechle <ralf@linux-mips.org>, linux-mips@linux-mips.org
In-reply-to: <004a01c53ed4$dab12b00$10eca8c0@grendel>
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References: <42553E49.7080004@timesys.com> <4256991C.4020601@timesys.com> <20050408161357.GB19166@linux-mips.org> <4256B524.2080509@timesys.com> <425AD440.5050600@timesys.com> <004a01c53ed4$dab12b00$10eca8c0@grendel>
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Kevin D. Kissell wrote:

If the 4KC and 4KEC need it, so does the 4KSC (and 4KSD).

Is this a reasonable thing to do though. I always hate making changes that work, but that I don't understand why.

Greg Weeks

----- Original Message ----- From: "Greg Weeks" <greg.weeks@timesys.com>
To: "Ralf Baechle" <ralf@linux-mips.org>
Cc: <linux-mips@linux-mips.org>
Sent: Monday, April 11, 2005 21:47
Subject: Re: another 4kc machine check.


This patch appears to fix my machine check problem on the 4kc. The 4kc shouldn't need an ssnop here, but this appears to fix it.

Greg Weeks



--------------------------------------------------------------------------------


--- mips-malta4kcle-basic/arch/mips/mm/tlbex.c-orig
+++ mips-malta4kcle-basic/arch/mips/mm/tlbex.c
@@ -847,7 +847,6 @@

 case CPU_R10000:
 case CPU_R12000:
- case CPU_4KC:
 case CPU_SB1:
 case CPU_4KSC:
 case CPU_20KC:
@@ -874,6 +873,7 @@
 tlbw(p);
 break;

+ case CPU_4KC:
 case CPU_4KEC:
 case CPU_24K:
 i_ehb(p);



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