From: shaggy@linux.vnet.ibm.com
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, Paul Mackerras <paulus@au1.ibm.com>,
Linuxppc-dev@ozlabs.org
Subject: [patch 6/6] powerpc: Dont clear _PAGE_COHERENT when _PAGE_SAO is set
Date: Wed, 18 Jun 2008 17:33:00 -0500 [thread overview]
Message-ID: <20080618223329.644300254@linux.vnet.ibm.com> (raw)
In-Reply-To: 20080618223254.966080905@linux.vnet.ibm.com
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
arch/powerpc/platforms/pseries/lpar.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux-2.6.26-rc5/arch/powerpc/platforms/pseries/lpar.c
===================================================================
--- linux-2.6.26-rc5.orig/arch/powerpc/platforms/pseries/lpar.c
+++ linux-2.6.26-rc5/arch/powerpc/platforms/pseries/lpar.c
@@ -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);
--
WARNING: multiple messages have this Message-ID (diff)
From: shaggy@linux.vnet.ibm.com
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>,
linux-mm@kvack.org, Linuxppc-dev@ozlabs.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>Benjamin
Herrenschmidt <benh@kernel.crashing.org>
Subject: [patch 6/6] powerpc: Dont clear _PAGE_COHERENT when _PAGE_SAO is set
Date: Wed, 18 Jun 2008 17:33:00 -0500 [thread overview]
Message-ID: <20080618223329.644300254@linux.vnet.ibm.com> (raw)
In-Reply-To: 20080618223254.966080905@linux.vnet.ibm.com
[-- Attachment #1: dont_clobber_M.patch --]
[-- Type: text/plain, Size: 937 bytes --]
---
arch/powerpc/platforms/pseries/lpar.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: linux-2.6.26-rc5/arch/powerpc/platforms/pseries/lpar.c
===================================================================
--- linux-2.6.26-rc5.orig/arch/powerpc/platforms/pseries/lpar.c
+++ linux-2.6.26-rc5/arch/powerpc/platforms/pseries/lpar.c
@@ -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:[~2008-06-18 22:33 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-18 22:32 [patch 0/6] Strong Access Ordering page attributes for POWER7 shaggy
2008-06-18 22:32 ` shaggy
2008-06-18 22:32 ` [patch 1/6] mm: Allow architectures to define additional protection bits shaggy
2008-06-18 22:32 ` shaggy
2008-07-01 8:53 ` Andrew Morton
2008-07-01 8:53 ` Andrew Morton
2008-07-01 13:54 ` Dave Kleikamp
2008-07-01 13:54 ` Dave Kleikamp
2008-07-07 5:52 ` Benjamin Herrenschmidt
2008-07-07 5:52 ` Benjamin Herrenschmidt
2008-07-07 21:11 ` Hugh Dickins
2008-07-07 21:11 ` Hugh Dickins
2008-07-07 22:24 ` Benjamin Herrenschmidt
2008-07-07 22:24 ` Benjamin Herrenschmidt
2008-07-08 6:18 ` Benjamin Herrenschmidt
2008-07-08 6:18 ` Benjamin Herrenschmidt
2008-07-08 13:00 ` Hugh Dickins
2008-07-08 13:00 ` Hugh Dickins
2008-07-08 13:35 ` Dave Kleikamp
2008-07-08 13:35 ` Dave Kleikamp
2008-06-18 22:32 ` [patch 2/6] powerpc: hash_huge_page() should get the WIMG bits from the lpte shaggy
2008-06-18 22:32 ` shaggy
2008-06-18 22:32 ` [patch 3/6] powerpc: Define flags for Strong Access Ordering shaggy
2008-06-18 22:32 ` shaggy
2008-06-18 22:32 ` [patch 4/6] powerpc: Add SAO Feature bit to the cputable shaggy
2008-06-18 22:32 ` shaggy
2008-06-18 22:32 ` [patch 5/6] powerpc: Add Strong Access Ordering shaggy
2008-06-18 22:32 ` shaggy
2008-06-18 22:33 ` shaggy [this message]
2008-06-18 22:33 ` [patch 6/6] powerpc: Dont clear _PAGE_COHERENT when _PAGE_SAO is set shaggy
2008-07-03 23:39 ` [patch 0/6] Strong Access Ordering page attributes for POWER7 Benjamin Herrenschmidt
2008-07-03 23:39 ` Benjamin Herrenschmidt
2008-07-07 14:05 ` Dave Kleikamp
2008-07-07 14:05 ` Dave Kleikamp
2008-07-07 21:23 ` Joel Schopp
2008-07-07 21:23 ` Joel Schopp
2008-07-07 22:27 ` Benjamin Herrenschmidt
2008-07-07 22:27 ` Benjamin Herrenschmidt
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