From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <3851A289.226B892C@yahoo.com>
Date: Sat, 11 Dec 1999 09:02:01 +0800
From: Wang Yong <wung_y@yahoo.com>
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To: linuxppc-embedded@lists.linuxppc.org
Subject: switch mmu context when jump into kernel
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powerpc 4xx use mmu context(called TID(0~255)) when translate virtual
addr to physical addr. a SPR named PID hold this context, so i think
once i enable the addr translate, i have to set PID to
current->mm->context
to make translating work correctly. and it should be set to 0 when
interrupt or system call arise.
but after studying the kernel source i downloaded from tivo for a long
time, i don't find any code to do that job. i think it mostly should be
in these place: transfer_to_handler and int_return but it not. is the
kernel missing something?

i am sorry if i post this message twice, my netscape got some problem.

Wang


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