From: Scott Wood <scottwood@freescale.com>
To: Joakim Tjernlund <joakim.tjernlund@transmode.se>
Cc: "linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>,
Rex Feany <RFeany@mrv.com>
Subject: Re: [PATCH 00/10] Fix 8xx MMU/TLB
Date: Wed, 18 Nov 2009 15:58:26 -0600 [thread overview]
Message-ID: <4B046E02.9030606@freescale.com> (raw)
In-Reply-To: <OFD94AE350.813F1695-ONC1257672.007719B8-C1257672.00778BD4@transmode.se>
Joakim Tjernlund wrote:
> Yeah, those are the ones that will trigger a dcbX TLB fault,
> copy_tofrom_user would be my guess. Perhaps I missed something
> in the conversions? That is, maybe some of these routines are plain wrong now for
> 8xx due to some other bug?
> A small test program in user space doing some dcbX insn could shed some light?
Sorry, it looks like the rlwimi instruction I gave you was bad.
It should be:
rlwimi r11, r10, 12, 0xffc
instead of:
rlwimi r11, r10, 22, 0xffc
-Scott
next prev parent reply other threads:[~2009-11-18 21:58 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-15 17:09 [PATCH 00/10] Fix 8xx MMU/TLB Joakim Tjernlund
2009-11-15 17:09 ` [PATCH 01/10] 8xx: invalidate non present TLBs Joakim Tjernlund
2009-11-15 17:09 ` [PATCH 02/10] 8xx: Update TLB asm so it behaves as linux mm expects Joakim Tjernlund
2009-11-15 17:09 ` [PATCH 03/10] 8xx: Tag DAR with 0x00f0 to catch buggy instructions Joakim Tjernlund
2009-11-15 17:09 ` [PATCH 04/10] 8xx: Always pin kernel instruction TLB Joakim Tjernlund
2009-11-15 17:09 ` [PATCH 05/10] 8xx: Fixup DAR from buggy dcbX instructions Joakim Tjernlund
2009-11-15 17:09 ` [PATCH 06/10] 8xx: Add missing Guarded setting in DTLB Error Joakim Tjernlund
2009-11-15 17:09 ` [PATCH 07/10] 8xx: Restore _PAGE_WRITETHRU Joakim Tjernlund
2009-11-15 17:09 ` [PATCH 08/10] 8xx: start using dcbX instructions in various copy routines Joakim Tjernlund
2009-11-15 17:09 ` [PATCH 09/10] 8xx: Remove DIRTY pte handling in DTLB Error Joakim Tjernlund
2009-11-15 17:09 ` [PATCH 10/10] 8xx: DTLB Miss cleanup Joakim Tjernlund
2009-11-16 21:00 ` [PATCH 00/10] Fix 8xx MMU/TLB Scott Wood
2009-11-16 21:27 ` Scott Wood
2009-11-16 22:53 ` Joakim Tjernlund
2009-11-17 0:40 ` Scott Wood
2009-11-17 8:04 ` Joakim Tjernlund
2009-11-18 21:08 ` Scott Wood
2009-11-18 21:45 ` Joakim Tjernlund
2009-11-18 21:58 ` Scott Wood [this message]
2009-11-18 23:05 ` Joakim Tjernlund
-- strict thread matches above, loose matches on Subject: below --
2009-11-14 10:42 Joakim Tjernlund
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