From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: RE: cacheble to uncachble change
Date: Mon, 26 Apr 2004 21:46:01 +0000 [thread overview]
Message-ID: <16525.33561.50405.815886@napali.hpl.hp.com> (raw)
In-Reply-To: <408D5C58.E07A5FBE@email.mot.com>
>>>>> On Mon, 26 Apr 2004 14:24:58 -0700, "Jim Hull" <jim.hull@hp.com> said:
Jim> In addition to what David wrote, which I completely agree with,
Jim> you also need to be aware that it is platform dependent whether
Jim> any particular address range supports cacheable, uncacheable,
Jim> or both attributes. System firmware communicates to the OS
Jim> which attributes are allowed for which address ranges. I'm not
Jim> familiar with how ia64-linux exposes this info within the
Jim> kernel (maybe David could fill you in).
The EFI memory attributes for a particular physical address can be
looked up in ia64 linux via:
unsigned long efi_mem_attributes (unsigned long phys_addr);
--david
next prev parent reply other threads:[~2004-04-26 21:46 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-26 18:57 cacheble to uncachble change Mario Smarduch
2004-04-26 19:25 ` David Mosberger
2004-04-26 21:24 ` Jim Hull
2004-04-26 21:35 ` Robin Holt
2004-04-26 21:46 ` David Mosberger [this message]
2004-04-27 0:03 ` David Mosberger
2004-04-27 10:52 ` Robin Holt
2004-04-27 14:24 ` Jack Steiner
2004-04-27 19:50 ` David Mosberger
2004-04-27 21:31 ` Jack Steiner
2004-04-27 21:48 ` David Mosberger
2004-04-27 22:35 ` Mario Smarduch
2004-04-27 22:45 ` David Mosberger
2004-04-27 23:53 ` Luck, Tony
2004-04-28 1:43 ` Robin Holt
2004-04-28 15:52 ` Mario Smarduch
2004-04-29 4:49 ` David Mosberger
2004-04-29 13:39 ` Smarduch Mario-CMS063
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