From: Wu Zhangjin <wuzhangjin@gmail.com>
To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Ralf Baechle <ralf@linux-mips.org>,
David Daney <ddaney@caviumnetworks.com>,
linux-mips@linux-mips.org
Subject: Re: [PATCH] MIPS: Calculate proper ebase value for 64-bit kernels
Date: Mon, 26 Apr 2010 20:13:55 +0800 [thread overview]
Message-ID: <1272284035.11865.8.camel@localhost> (raw)
In-Reply-To: <20100414112458.GA8861@alpha.franken.de>
On Wed, 2010-04-14 at 13:24 +0200, Thomas Bogendoerfer wrote:
> On Wed, Apr 14, 2010 at 04:03:05PM +0800, Wu Zhangjin wrote:
> > If using CKSEG0 as the ebase, CKSEG0 is defined as 0xffffffff80000000,
> > then we get the address: 0x97ffffff80000100, is this address ok?
>
> the address is broken TO_UNCAC doesn't work properly for CKSEG0 addresses.
> And that's IMHO the real bug... I'm wondering whether this
> set_uncached_handler() stunt is even needed. Is there a machine
> where CKSEG0 and CKSEG1 address different memory ? If not, we could
> just use the normal set_handler() function and be done with it.
>
Hi, all
I'm not familiar with this part, is there any fixup/workaround for this
bug? otherwise, we will get a broken support for the r4k machines(at
least the loongson machines).
Regards,
Wu Zhangjin
next prev parent reply other threads:[~2010-04-26 12:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-06 20:29 [PATCH] MIPS: Calculate proper ebase value for 64-bit kernels David Daney
2010-04-07 15:39 ` Ralf Baechle
2010-04-13 5:03 ` Wu Zhangjin
2010-04-13 7:34 ` Thomas Bogendoerfer
2010-04-13 17:16 ` Ralf Baechle
2010-04-13 18:15 ` Thomas Bogendoerfer
2010-04-14 8:03 ` Wu Zhangjin
2010-04-14 11:24 ` Thomas Bogendoerfer
2010-04-26 12:13 ` Wu Zhangjin [this message]
2010-04-26 17:19 ` David Daney
2010-04-27 2:53 ` Wu Zhangjin
2010-04-27 23:06 ` Maciej W. Rozycki
[not found] <Pine.LNX.4.21.1004270049440.1248-100000@Mobile0.Peter>
2010-04-27 0:22 ` David Daney
2010-04-27 4:05 ` Wu Zhangjin
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