From: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
To: linuxppc-dev list <Linuxppc-dev@ozlabs.org>
Cc: linux-mm <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: [RFC:PATCH 06/06] powerpc: Don't clear _PAGE_COHERENT when _PAGE_SAO is set
Date: Tue, 10 Jun 2008 18:01:30 -0400 [thread overview]
Message-ID: <20080610220129.10257.69024.sendpatchset@norville.austin.ibm.com> (raw)
In-Reply-To: <20080610220055.10257.84465.sendpatchset@norville.austin.ibm.com>
This is a placeholder. Benh tells me that he will come up with a better fix.
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
---
arch/powerpc/platforms/pseries/lpar.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -Nurp linux005/arch/powerpc/platforms/pseries/lpar.c linux006/arch/powerpc/platforms/pseries/lpar.c
--- linux005/arch/powerpc/platforms/pseries/lpar.c 2008-06-05 10:07:34.000000000 -0500
+++ linux006/arch/powerpc/platforms/pseries/lpar.c 2008-06-10 16:48:59.000000000 -0500
@@ -305,7 +305,8 @@ static long pSeries_lpar_hpte_insert(uns
flags = 0;
/* Make pHyp happy */
- if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE))
+ if ((rflags & _PAGE_GUARDED) ||
+ ((rflags & _PAGE_NO_CACHE) & !(rflags & _PAGE_WRITETHRU)))
hpte_r &= ~_PAGE_COHERENT;
lpar_rc = plpar_pte_enter(flags, hpte_group, hpte_v, hpte_r, &slot);
--
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next prev parent reply other threads:[~2008-06-10 22:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-10 22:00 [RFC:PATCH 00/06] Strong Access Ordering page attributes for POWER7 Dave Kleikamp
2008-06-10 22:01 ` [RFC:PATCH 01/06] powerpc: hash_huge_page() should get the WIMG bits from the lpte Dave Kleikamp
2008-06-10 22:01 ` [RFC:PATCH 02/06] mm: Allow architectures to define additional protection bits Dave Kleikamp
2008-06-10 22:14 ` Andrew Morton
2008-06-11 15:47 ` Dave Kleikamp
2008-06-10 22:01 ` [RFC:PATCH 03/06] powerpc: Define flags for Strong Access Ordering Dave Kleikamp
2008-06-10 22:01 ` [RFC:PATCH 04/06] powerpc: Define CPU_FTR_SAO Dave Kleikamp
2008-06-10 22:01 ` [RFC:PATCH 05/06] powerpc: Add Strong Access Ordering Dave Kleikamp
2008-06-10 22:01 ` Dave Kleikamp [this message]
2008-06-10 22:26 ` [RFC:PATCH 06/06] powerpc: Don't clear _PAGE_COHERENT when _PAGE_SAO is set Sergei Shtylyov
2008-06-11 3:12 ` Dave Kleikamp
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