From: Joel Schopp <jschopp@austin.ibm.com>
To: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Linuxppc-dev@ozlabs.org, Paul Mackerras <paulus@au1.ibm.com>,
linux-mm@kvack.org
Subject: Re: [patch 0/6] Strong Access Ordering page attributes for POWER7
Date: Mon, 07 Jul 2008 16:23:14 -0500 [thread overview]
Message-ID: <48728942.6050007@austin.ibm.com> (raw)
In-Reply-To: <1215439540.16098.15.camel@norville.austin.ibm.com>
>> We haven't defined a user-visible feature bit (and besides, we're really
>> getting short on these...). This is becoming a bit of concern btw (the
>> running out of bits). Maybe we should start defining an AT_HWCAP2 for
>> powerpc and get libc updated to pick it up ?
>>
>
> Joel,
> Any thoughts?
Is it a required or optional feature of the 2.06 architecture spec? If it's required you could just use that. It doesn't solve the problem more generically if other archs decide to implement it though.
next prev parent reply other threads:[~2008-07-07 21:23 UTC|newest]
Thread overview: 19+ 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 ` [patch 1/6] mm: Allow architectures to define additional protection bits shaggy
2008-07-01 8:53 ` Andrew Morton
2008-07-01 13:54 ` Dave Kleikamp
2008-07-07 5:52 ` Benjamin Herrenschmidt
2008-07-07 21:11 ` Hugh Dickins
2008-07-07 22:24 ` Benjamin Herrenschmidt
2008-07-08 6:18 ` Benjamin Herrenschmidt
2008-07-08 13:00 ` Hugh Dickins
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 ` [patch 3/6] powerpc: Define flags for Strong Access Ordering shaggy
2008-06-18 22:32 ` [patch 4/6] powerpc: Add SAO Feature bit to the cputable shaggy
2008-06-18 22:32 ` [patch 5/6] powerpc: Add Strong Access Ordering shaggy
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
2008-07-07 14:05 ` Dave Kleikamp
2008-07-07 21:23 ` Joel Schopp [this message]
2008-07-07 22:27 ` Benjamin Herrenschmidt
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