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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
To: Wu Zhangjin <wuzhangjin@gmail.com>
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: Wed, 14 Apr 2010 13:24:58 +0200	[thread overview]
Message-ID: <20100414112458.GA8861@alpha.franken.de> (raw)
In-Reply-To: <1271232185.25872.142.camel@falcon>

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.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessary a
good idea.                                                [ RFC1925, 2.3 ]

  reply	other threads:[~2010-04-14 11:25 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 [this message]
2010-04-26 12:13           ` Wu Zhangjin
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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