From: Ralf Baechle <ralf@linux-mips.org>
To: Louis Hamilton <hamilton@redhat.com>
Cc: linux-mips@linux-mips.org
Subject: Re: [patch] Mips64 Ocelot-C and Jaguar ATX platform support
Date: Wed, 30 Jul 2003 03:30:20 +0200 [thread overview]
Message-ID: <20030730013019.GA7366@linux-mips.org> (raw)
In-Reply-To: <3F1F0BDC.8040609@redhat.com>
On Wed, Jul 23, 2003 at 05:27:40PM -0500, Louis Hamilton wrote:
> Notes the board support lives under arch/mips/momentum.
> Also, CONFIG_BOARD_SCACHE and CONFIG_RM7000_CPU_SCACHE are utilized and
> integrated into each platform's default configuration files.
> As in the first patch, drivers/net/mv64340_eth.{c,h} is added to provide
> ethernet support.
>
> If it looks ok, please check changes into the tree.
Ehhh, sorry. This CONFIG_JAGUAR_DMALOW thing just isn't the way to go.
I know the Jaguar's DMA architecture is unpleassant to say the least but
still, cluttering generic code with ifdefs isn't the way to go. Declare
all memory above the DMA limit high-memory and put the rest into ZONE_DMA
rsp. ZONE_NORMAL, as appropriate for the Jaguar. Then provide a dummy
implementation of kmap, kunmap etc. (unless you have "real" highmem of
course) that does the same thing as if highmem was disabled, see
<linux/highmem.h>.
Ralf
prev parent reply other threads:[~2003-07-30 1:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-23 22:27 [patch] Mips64 Ocelot-C and Jaguar ATX platform support Louis Hamilton
2003-07-28 19:05 ` William Jhun
2003-07-28 19:05 ` William Jhun
2003-07-28 20:20 ` Louis Hamilton
2003-07-30 1:30 ` Ralf Baechle [this message]
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