From: David Gibson <dwg@au1.ibm.com>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: linuxppc-dev list <Linuxppc-dev@ozlabs.org>,
Sergio Durigan Junior <sergiodj@br.ibm.com>,
Dave Kleikamp <shaggy@linux.vnet.ibm.com>,
Thiago Jung Bauermann <bauerman@br.ibm.com>,
Torez Smith <torez@us.ibm.com>
Subject: Re: [RFC:PATCH 02/03] powerpc: Add definitions for Debug Registers on BookE Platforms
Date: Fri, 11 Dec 2009 14:28:15 +1100 [thread overview]
Message-ID: <20091211032815.GD8852@yookeroo> (raw)
In-Reply-To: <1134F495-6623-437F-AF1F-64D0A87BA112@kernel.crashing.org>
On Thu, Dec 10, 2009 at 08:41:53PM -0600, Kumar Gala wrote:
[snip]
> > +#define DBCR1_USER_DEBUG (DBCR1_IAC12M | DBCR1_IAC34M)
> > +#define DBCR1_BASE_REG_VALUE (DBCR1_IAC1US | DBCR1_IAC1ER_10 | \
> > + DBCR1_IAC2US | DBCR1_IAC2ER_10 | \
> > + DBCR1_IAC3US | DBCR1_IAC3ER_10 | \
> > + DBCR1_IAC4US | DBCR1_IAC4ER_10)
>
> We are we using MSR[IS] IS=0, why not just any Eff address? In the
> future we might have user as IS = 1, and kernel as IS = 0.
Since the user can't control that directly, we can update this when
and if we change our use of address spaces.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
next prev parent reply other threads:[~2009-12-11 3:28 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-10 15:57 [RFC:PATCH 00/03] powerpc: Expose BookE debug registers through extended ptrace interface Dave Kleikamp
2009-12-10 15:57 ` [RFC:PATCH 01/03] powerpc: Extended " Dave Kleikamp
2009-12-11 0:44 ` David Gibson
2009-12-11 2:51 ` Kumar Gala
2009-12-10 15:57 ` [RFC:PATCH 02/03] powerpc: Add definitions for Debug Registers on BookE Platforms Dave Kleikamp
2009-12-10 17:07 ` Josh Boyer
2010-01-18 22:07 ` Dave Kleikamp
2009-12-11 0:53 ` David Gibson
2009-12-11 1:31 ` Dave Kleikamp
2010-01-18 22:10 ` Dave Kleikamp
2009-12-11 2:41 ` Kumar Gala
2009-12-11 3:28 ` David Gibson [this message]
2009-12-11 14:35 ` Kumar Gala
2009-12-14 1:16 ` David Gibson
2009-12-10 15:57 ` [RFC:PATCH 03/03] powerpc: Add support for BookE Debug Reg. traps, exceptions and ptrace Dave Kleikamp
2009-12-10 17:27 ` Josh Boyer
2009-12-10 17:41 ` Josh Boyer
2009-12-10 18:05 ` Dave Kleikamp
2009-12-11 2:50 ` Kumar Gala
2010-01-18 22:18 ` Dave Kleikamp
2009-12-11 3:26 ` David Gibson
2010-01-18 22:31 ` Dave Kleikamp
2009-12-11 2:23 ` [RFC:PATCH 00/03] powerpc: Expose BookE debug registers through extended ptrace interface Kumar Gala
2009-12-11 2:27 ` Dave Kleikamp
2009-12-11 20:07 ` Thiago Jung Bauermann
2009-12-11 20:51 ` Kumar Gala
2010-01-18 22:34 ` Dave Kleikamp
2010-02-03 2:03 ` Dave Kleikamp
2009-12-11 2:24 ` Kumar Gala
2009-12-11 2:29 ` Dave Kleikamp
2009-12-11 2:32 ` Kumar Gala
2009-12-12 4:18 ` Benjamin Herrenschmidt
2009-12-11 2:45 ` Kumar Gala
2010-01-18 22:41 ` Dave Kleikamp
-- strict thread matches above, loose matches on Subject: below --
2010-01-18 21:57 Dave Kleikamp
2010-01-18 21:59 ` [RFC:PATCH 02/03] powerpc: Add definitions for Debug Registers on BookE Platforms Dave Kleikamp
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