From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>,
linuxppc-dev@ozlabs.org, paulus@samba.org
Subject: Re: [PATCH] powerpc: make ioport_map() handle already mapped ranges
Date: Sun, 13 May 2007 11:46:04 +1000 [thread overview]
Message-ID: <1179020764.32247.45.camel@localhost.localdomain> (raw)
In-Reply-To: <200705130155.42414.arnd@arndb.de>
> There is a global io space range for all buses, which is maintained
> by the reserve_phb_iospace() call. You should get your I/O ports in there
> if you want them to just work. Note that while the reserve_phb_iospace()
> logic works in practice, it does have a few shortcomings that should
> eventually be resolved:
The solution is to use proper allocators for these.
As you pointed out on irc, it seems like the current __get_vm_area()
could match our needs. It might allow us to also get rid of imalloc.
I'll give that a go tomorrow.
Ben.
prev parent reply other threads:[~2007-05-13 1:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-12 14:32 [PATCH] powerpc: make ioport_map() handle already mapped ranges Olof Johansson
2007-05-12 22:18 ` Arnd Bergmann
2007-05-12 22:36 ` Olof Johansson
2007-05-12 23:55 ` Arnd Bergmann
2007-05-13 1:46 ` Benjamin Herrenschmidt [this message]
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