From: Segher Boessenkool <segher@kernel.crashing.org>
To: "Paul A. Clarke" <pc@us.ibm.com>
Cc: Alistair Popple <alistair@popple.id.au>,
mikey@neuling.org, linuxppc-dev@lists.ozlabs.org,
npiggin@gmail.com, aneesh.kumar@linux.ibm.com
Subject: Re: [PATCH v2 6/7] powerpc/dt_cpu_ftrs: Add MMA feature
Date: Tue, 19 May 2020 10:28:55 -0500 [thread overview]
Message-ID: <20200519152855.GN31009@gate.crashing.org> (raw)
In-Reply-To: <20200519152240.GB24922@oc3272150783.ibm.com>
On Tue, May 19, 2020 at 10:22:40AM -0500, Paul A. Clarke wrote:
> On Tue, May 19, 2020 at 10:05:56AM -0500, Segher Boessenkool wrote:
> > On Tue, May 19, 2020 at 09:49:22AM -0500, Paul A. Clarke wrote:
> > > On Tue, May 19, 2020 at 10:31:56AM +1000, Alistair Popple wrote:
> > > > Matrix multiple accumulate (MMA) is a new feature added to ISAv3.1 and
> > >
> > > nit: "Matrix-Multiply Accelerator".
> >
> > "Matrix-Multiply Assist" in fact :-)
>
> Not according to the ISA (p. 1129).
There is one mistake in the 3.1 ABI yes, in the description for the PCR
bit of this same name. Everything else calls this "assist", like all
similar things are called as well (whereas an "accelerator" is an
external device).
Segher
next prev parent reply other threads:[~2020-05-19 15:31 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-19 0:31 [PATCH v2 0/7] Base support for POWER10 Alistair Popple
2020-05-19 0:31 ` [PATCH v2 1/7] powerpc: Add new HWCAP bits Alistair Popple
2020-05-19 3:20 ` Michael Neuling
2020-05-19 17:48 ` Paul A. Clarke
2020-05-20 2:42 ` Michael Ellerman
2020-05-20 3:29 ` Alistair Popple
2020-05-19 0:31 ` [PATCH v2 2/7] powerpc: Add support for ISA v3.1 Alistair Popple
2020-05-19 4:04 ` Jordan Niethe
2020-05-19 5:45 ` Alistair Popple
2020-05-19 0:31 ` [PATCH v2 3/7] powerpc/dt_cpu_ftrs: Advertise support for ISA v3.1 if selected Alistair Popple
2020-05-19 0:31 ` [PATCH v2 4/7] powerpc/dt_cpu_ftrs: Set current thread fscr bits Alistair Popple
2020-05-19 0:31 ` [PATCH v2 5/7] powerpc/dt_cpu_ftrs: Enable Prefixed Instructions Alistair Popple
2020-05-19 0:31 ` [PATCH v2 6/7] powerpc/dt_cpu_ftrs: Add MMA feature Alistair Popple
2020-05-19 14:49 ` Paul A. Clarke
2020-05-19 15:05 ` Segher Boessenkool
2020-05-19 15:22 ` Paul A. Clarke
2020-05-19 15:28 ` Segher Boessenkool [this message]
2020-05-19 15:49 ` Paul A. Clarke
2020-05-19 17:51 ` Paul A. Clarke
2020-05-19 23:56 ` Alistair Popple
2020-05-19 0:31 ` [PATCH v2 7/7] powerpc: Add POWER10 architected mode Alistair Popple
2020-05-19 3:58 ` Jordan Niethe
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