linux-kernel - Re: [PATCH 00/15] powerpc/watchpoint: Preparation for more than one watchpoint

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Message-ID: <b7148b91-e3db-d48a-7294-5c18fc801933@c-s.fr>
Date:   Mon, 16 Mar 2020 16:05:01 +0100
From:   Christophe Leroy <christophe.leroy@....fr>
To:     Ravi Bangoria <ravi.bangoria@...ux.ibm.com>, mpe@...erman.id.au,
        mikey@...ling.org
Cc:     apopple@...ux.ibm.com, paulus@...ba.org, npiggin@...il.com,
        naveen.n.rao@...ux.vnet.ibm.com, peterz@...radead.org,
        jolsa@...nel.org, oleg@...hat.com, fweisbec@...il.com,
        mingo@...nel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/15] powerpc/watchpoint: Preparation for more than one
 watchpoint



Le 09/03/2020 à 09:57, Ravi Bangoria a écrit :
> So far, powerpc Book3S code has been written with an assumption of only
> one watchpoint. But future power architecture is introducing second
> watchpoint register (DAWR). Even though this patchset does not enable
> 2nd DAWR, it make the infrastructure ready so that enabling 2nd DAWR
> should just be a matter of changing count.

Some book3s (e300 family for instance, I think G2 as well) already have 
a DABR2 in addition to DABR.
Will this series allow to use it as well ?

Christophe