From: "H. Peter Anvin" <hpa@zytor.com>
To: Jack Steiner <steiner@sgi.com>
Cc: lenb@kernel.org, hmh@hmh.eng.br, tony.luck@gmail.com,
linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
gbeshers@sgi.com
Subject: Re: [PATCH] - Mapping ACPI tables as CACHED
Date: Tue, 14 Dec 2010 20:17:04 -0800 [thread overview]
Message-ID: <4D084140.1070700@zytor.com> (raw)
In-Reply-To: <20101215022735.GA19601@sgi.com>
On 12/14/2010 06:27 PM, Jack Steiner wrote:
> On Tue, Dec 14, 2010 at 02:58:42PM -0800, H. Peter Anvin wrote:
>> On 12/14/2010 02:09 PM, Jack Steiner wrote:
>>> Map ACPI tables as WB on x86_64. No substantive changes to IA64.
>>
>> Why just x86-64?
>
> We never observed a performance problem on IA64. Not sure if it maps
> ACPI space as WB or not. Since I did not have easy access to
> an ia64, I chose not to make any changes to the way it maps
> the table.
>
You're missing the point: x86-64 as opposed to x86 in general.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2010-12-15 4:17 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-14 22:09 [PATCH] - Mapping ACPI tables as CACHED Jack Steiner
2010-12-14 22:58 ` H. Peter Anvin
2010-12-14 23:22 ` Len Brown
2010-12-15 0:26 ` H. Peter Anvin
2010-12-15 2:27 ` Jack Steiner
2010-12-15 4:17 ` H. Peter Anvin [this message]
2010-12-15 0:04 ` Len Brown
2010-12-15 1:18 ` H. Peter Anvin
2010-12-15 2:40 ` Len Brown
2010-12-15 2:41 ` Jack Steiner
2010-12-15 4:03 ` Len Brown
2010-12-15 4:35 ` Len Brown
2010-12-15 6:17 ` H. Peter Anvin
2010-12-15 6:17 ` Milton Miller
2010-12-15 6:29 ` H. Peter Anvin
2010-12-15 16:46 ` Jack Steiner
2010-12-15 21:16 ` Len Brown
2010-12-15 22:18 ` H. Peter Anvin
2010-12-17 2:54 ` Len Brown
2010-12-17 8:08 ` [PATCH] ACPI: use ioremap_cache() Len Brown
2010-12-27 19:42 ` Tony Luck
2010-12-27 20:12 ` H. Peter Anvin
2010-12-28 3:21 ` Shaohua Li
2010-12-28 3:35 ` H. Peter Anvin
2010-12-28 5:02 ` Shaohua Li
2010-12-28 20:12 ` H. Peter Anvin
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