From: Willy Tarreau <w@1wt.eu>
To: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Cc: Scott Wood <scottwood@freescale.com>,
linuxppc-dev <linuxppc-dev@ozlabs.org>,
Dan Malek <ppc6dev@digitaldans.com>
Subject: Re: [PATCH 00/14] Backport 8xx TLB to 2.4
Date: Mon, 10 Oct 2011 14:30:20 +0200 [thread overview]
Message-ID: <20111010123020.GA21699@1wt.eu> (raw)
In-Reply-To: <1318246220-4839-1-git-send-email-Joakim.Tjernlund@transmode.se>
Hi Joakim,
On Mon, Oct 10, 2011 at 01:30:06PM +0200, Joakim Tjernlund wrote:
> This is a backport from 2.6 which I did to overcome 8xx CPU
> bugs. 8xx does not update the DAR register when taking a TLB
> error caused by dcbX and icbi insns which makes it very
> tricky to use these insns. Also the dcbst wrongly sets the
> the store bit when faulting into DTLB error.
> A few more bugs very found during development.
>
> I know 2.4 is in strict maintenance mode and 8xx is obsolete
> but as it is still in use I wanted 8xx to age with grace.
Thank you. I must admit I was hoping those patches would come in
for a last release before the end of the year :-)
Unless there is any objection from anyone, I'll merge them when
kernel.org is back online.
Cheers,
Willy
next prev parent reply other threads:[~2011-10-10 12:45 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-10 11:30 [PATCH 00/14] Backport 8xx TLB to 2.4 Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 01/14] 8xx: Use a macro to simpliy CPU6 errata code Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 02/14] 8xx: Tag DAR with 0x00f0 to catch buggy instructions Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 03/14] 8xx: invalidate non present TLBs Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 04/14] 8xx: Fix CONFIG_PIN_TLB Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 05/14] 8xx: Update TLB asm so it behaves as linux mm expects Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 06/14] 8xx: Fixup DAR from buggy dcbX instructions Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 07/14] 8xx: CPU6 errata make DTLB error too big to fit Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 08/14] 8xx: Add missing Guarded setting in DTLB Error Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 09/14] 8xx: Restore _PAGE_WRITETHRU Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 10/14] 8xx: Set correct HW pte flags in DTLB Error too Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 11/14] 8xx: start using dcbX instructions in various copy routines Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 12/14] 8xx: Use symbolic constants in TLB asm Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 13/14] 8xx: Optimize TLB Miss handlers Joakim Tjernlund
2011-10-10 11:30 ` [PATCH 14/14] 8xx: The TLB miss handler manages ACCESSED correctly Joakim Tjernlund
2011-10-10 12:30 ` Willy Tarreau [this message]
2011-12-11 17:19 ` [PATCH 00/14] Backport 8xx TLB to 2.4 Joakim Tjernlund
2011-12-11 17:33 ` Willy Tarreau
2012-02-08 8:44 ` Joakim Tjernlund
2012-02-08 9:44 ` Willy Tarreau
2012-02-08 11:39 ` Joakim Tjernlund
2012-02-08 12:26 ` Willy Tarreau
2012-04-09 13:08 ` Willy Tarreau
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