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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Joakim Tjernlund <joakim.tjernlund@transmode.se>
Cc: Scott Wood <scottwood@freescale.com>,
	"linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>,
	Rex Feany <RFeany@mrv.com>
Subject: Re: [PATCH 7/8] 8xx: Restore _PAGE_WRITETHRU
Date: Mon, 12 Oct 2009 09:45:30 +1100	[thread overview]
Message-ID: <1255301130.2192.45.camel@pasglop> (raw)
In-Reply-To: <OF0664CEC2.C4547EAA-ONC125764C.007ABA27-C125764C.007AD248@transmode.se>

On Mon, 2009-10-12 at 00:21 +0200, Joakim Tjernlund wrote:
> > I think I've replaced _PAGE_EXEC with _PAGE_SPECIAL already
> > upstream since _PAGE_EXEC is unused on 8xx.
> 
> What is page SPECIAL anyway? 

It's used on newer kernels to indicates PTEs that map something that
isn't backed by a struct page (ie, not memory)

Cheers,
Ben.

  reply	other threads:[~2009-10-11 22:45 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-11 16:35 [PATCH 0/8] Fix 8xx MMU/TLB Joakim Tjernlund
2009-10-11 16:35 ` [PATCH 1/8] 8xx: invalidate non present TLBs Joakim Tjernlund
2009-10-11 16:35   ` [PATCH 2/8] 8xx: Update TLB asm so it behaves as linux mm expects Joakim Tjernlund
2009-10-11 16:35     ` [PATCH 3/8] 8xx: Tag DAR with 0x00f0 to catch buggy instructions Joakim Tjernlund
2009-10-11 16:35       ` [PATCH 4/8] 8xx: Fixup DAR from buggy dcbX instructions Joakim Tjernlund
2009-10-11 16:35         ` [PATCH 5/8] 8xx: dcbst sets store bit in DTLB error, workaround Joakim Tjernlund
2009-10-11 16:35           ` [PATCH 6/8] 8xx: Add missing Guarded setting in DTLB Error Joakim Tjernlund
2009-10-11 16:35             ` [PATCH 7/8] 8xx: Restore _PAGE_WRITETHRU Joakim Tjernlund
2009-10-11 16:35               ` [PATCH 8/8] 8xx: start using dcbX instructions in various copy routines Joakim Tjernlund
2009-10-11 21:26               ` [PATCH 7/8] 8xx: Restore _PAGE_WRITETHRU Benjamin Herrenschmidt
2009-10-11 22:21                 ` Joakim Tjernlund
2009-10-11 22:45                   ` Benjamin Herrenschmidt [this message]
2009-10-11 21:25             ` [PATCH 6/8] 8xx: Add missing Guarded setting in DTLB Error Benjamin Herrenschmidt
2009-10-11 22:19               ` Joakim Tjernlund
2009-10-11 22:44                 ` Benjamin Herrenschmidt
2009-10-12  5:36                   ` Joakim Tjernlund
2009-10-12  5:46                     ` Benjamin Herrenschmidt
2009-10-12  6:59                       ` Joakim Tjernlund
2009-10-14 17:02           ` [PATCH 5/8] 8xx: dcbst sets store bit in DTLB error, workaround Scott Wood
2009-10-14 17:20         ` [PATCH 4/8] 8xx: Fixup DAR from buggy dcbX instructions Scott Wood
2009-10-14 19:05           ` Joakim Tjernlund
2009-10-14 19:23             ` Scott Wood
2009-10-14 20:03               ` Joakim Tjernlund
2009-10-14 20:22                 ` Scott Wood
2009-10-14 21:10                   ` Joakim Tjernlund
2009-10-14 21:14                     ` Scott Wood
2009-10-14 21:17                       ` Benjamin Herrenschmidt
2009-10-14 21:41                         ` Joakim Tjernlund
2009-10-14 21:52                           ` Benjamin Herrenschmidt
2009-10-14 22:09                             ` Joakim Tjernlund
2009-10-11 21:25     ` [PATCH 2/8] 8xx: Update TLB asm so it behaves as linux mm expects Benjamin Herrenschmidt
2009-10-14 16:57     ` Scott Wood
2009-10-14 16:56   ` [PATCH 1/8] 8xx: invalidate non present TLBs Scott Wood
2009-10-14 17:23 ` [PATCH 0/8] Fix 8xx MMU/TLB Scott Wood
2009-10-14 18:46   ` Joakim Tjernlund

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