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From: Dale Larson <dlarson42@gmail.com>
To: linux-sh@vger.kernel.org
Subject: Re: User mode address error problems on 7763
Date: Tue, 15 Sep 2009 12:20:27 +0000	[thread overview]
Message-ID: <6e6aa1a80909150520n29f4a0d0gdb66a0eff18e4fa2@mail.gmail.com> (raw)
In-Reply-To: <6e6aa1a80909111106l6dbcfccag4e9e7a3abb922688@mail.gmail.com>

Hi Paul,

>> The 7763 only supports 1K, 4K, 64K and 1M pages. Would a 64K page
>> yield any useful info?
> You can get 8kB pages by enabling extended mode TLB. But yes, 64k pages
> are fine too, if using the compat mode TLB.

I can? I don't see it in the 7763 hardware manual. I only see this in
the MMU section:

"This LSI has four instruction TLB (ITLB) entries and 64 unified TLB
(UTLB) entries. UTLB
copies are stored in the ITLB by hardware. A paging system is used for
address translation, with
four page sizes (1, 4, and 64 Kbytes, and 1 Mbyte) supported. It is
possible to set the virtual
address space access right and implement memory protection
independently for privileged mode
and user mode."

If 64K would work with "compat mode TLB" how do I turn it on?

  parent reply	other threads:[~2009-09-15 12:20 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-11 18:06 User mode address error problems on 7763 Dale Larson
2009-09-11 18:35 ` Matt Fleming
2009-09-11 19:16 ` Dale Larson
2009-09-14 13:02 ` Dale Larson
2009-09-14 13:10 ` Paul Mundt
2009-09-14 13:14 ` Matt Fleming
2009-09-14 13:54 ` Dale Larson
2009-09-15  8:39 ` Matt Fleming
2009-09-15 11:54 ` Dale Larson
2009-09-15 11:57 ` Paul Mundt
2009-09-15 12:20 ` Dale Larson [this message]
2009-09-15 12:36 ` Paul Mundt
2009-09-15 12:55 ` Dale Larson
2009-09-15 13:07 ` Paul Mundt
2009-09-15 13:16 ` Dale Larson
2009-09-15 13:23 ` Dale Larson
2009-09-15 13:29 ` Dale Larson
2009-09-15 13:39 ` Paul Mundt
2009-09-15 13:49 ` Valentin R Sitsikov
2009-09-15 14:43 ` Dale Larson
2009-09-15 23:42 ` Paul Mundt
2009-09-16 12:45 ` Dale Larson
2009-09-16 19:22 ` Dale Larson

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