From: "David S. Miller" <davem@redhat.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jeff Garzik <jgarzik@mandrakesoft.com>,
<linux-kernel@vger.kernel.org>,
"Albert D. Cahalan" <acahalan@cs.uml.edu>,
Tom Gall <tom_gall@vnet.ibm.com>
Subject: Re: Going beyond 256 PCI buses
Date: Thu, 14 Jun 2001 14:35:21 -0700 (PDT) [thread overview]
Message-ID: <15145.11801.823664.36512@pizda.ninka.net> (raw)
In-Reply-To: <20010614213021.3814@smtp.wanadoo.fr>
In-Reply-To: <15145.6960.267459.725096@pizda.ninka.net> <20010614213021.3814@smtp.wanadoo.fr>
Benjamin Herrenschmidt writes:
> I beleive there will always be need for some platform specific
> hacking at probe-time to handle those, but we can at least make
> the inx/outx functions/macros compatible with such a scheme,
> possibly by requesting an ioremap equivalent to be done so that
> we stop passing them real PIO addresses, but a cookie obtained
> in various platform specific ways.
The cookie can be encoded into the address itself.
This is why readl() etc. take one arg, the address, not a billion
other arguments like some systems do.
Later,
David S. Miller
davem@redhat.com
next prev parent reply other threads:[~2001-06-14 21:36 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-13 10:02 Tom Gall
2001-06-13 17:17 ` Albert D. Cahalan
2001-06-13 18:29 ` Tom Gall
2001-06-14 14:14 ` Jeff Garzik
2001-06-14 15:15 ` David S. Miller
2001-06-14 17:59 ` Jonathan Lundell
2001-06-14 20:50 ` Jonathan Lundell
2001-06-14 14:24 ` David S. Miller
2001-06-14 14:32 ` Jeff Garzik
2001-06-14 14:42 ` David S. Miller
2001-06-14 15:29 ` Jeff Garzik
2001-06-14 15:33 ` Jeff Garzik
2001-06-14 18:01 ` Albert D. Cahalan
2001-06-14 18:47 ` David S. Miller
2001-06-14 19:04 ` Albert D. Cahalan
2001-06-14 19:12 ` David S. Miller
2001-06-14 19:41 ` Jeff Garzik
2001-06-14 19:57 ` David S. Miller
2001-06-14 20:08 ` Jeff Garzik
2001-06-14 20:14 ` David S. Miller
2001-06-14 21:30 ` Benjamin Herrenschmidt
2001-06-14 21:46 ` Jeff Garzik
2001-06-14 21:48 ` David S. Miller
2001-06-14 21:57 ` Benjamin Herrenschmidt
2001-06-14 22:12 ` David S. Miller
2001-06-14 22:29 ` Benjamin Herrenschmidt
2001-06-14 22:49 ` David S. Miller
2001-06-14 23:35 ` Benjamin Herrenschmidt
2001-06-14 23:35 ` VGA handling was [Re: Going beyond 256 PCI buses] James Simmons
2001-06-14 23:42 ` David S. Miller
2001-06-14 23:55 ` James Simmons
2001-06-15 15:14 ` Pavel Machek
2001-06-15 2:06 ` Albert D. Cahalan
2001-06-15 8:52 ` Matan Ziv-Av
2001-06-14 21:35 ` David S. Miller [this message]
2001-06-14 21:46 ` Going beyond 256 PCI buses Benjamin Herrenschmidt
2001-06-16 21:32 ` Jeff Garzik
2001-06-16 23:29 ` Benjamin Herrenschmidt
2001-06-15 8:42 ` Geert Uytterhoeven
2001-06-15 15:38 ` David S. Miller
2001-06-14 19:03 ` David S. Miller
2001-06-14 20:56 ` David S. Miller
2001-06-14 15:13 ` Jonathan Lundell
2001-06-14 15:17 ` Jeff Garzik
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