All of lore.kernel.org
 help / color / mirror / Atom feed
From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Michael Ellerman <mpe@ellerman.id.au>, linuxppc-dev@ozlabs.org
Cc: mikey@neuling.org, chris@distroguy.com
Subject: Re: [1/3] selftests/powerpc: Remove Power9 copy_unaligned test
Date: Tue, 24 Jul 2018 01:11:16 +1000 (AEST)	[thread overview]
Message-ID: <41Z4h508fJz9s7Q@ozlabs.org> (raw)
In-Reply-To: <20180711071017.5128-1-mpe@ellerman.id.au>

On Wed, 2018-07-11 at 07:10:15 UTC, Michael Ellerman wrote:
> This is a test of the ISA 3.0 "copy" instruction. That instruction has
> an L field, which if set to 1 specifies that "the instruction
> identifies the beginning of a move group" (pp 858). That's also
> referred to as "copy first" vs "copy".
> 
> In ISA 3.0B the copy instruction does not have an L field, and the
> corresponding bit in the instruction must be set to 1.
> 
> This test is generating a "copy" instruction, not a "copy first", and
> so on Power9 (which implements 3.0B), this results in an illegal
> instruction.
> 
> So just drop the test entirely. We still have copy_first_unaligned to
> test the "copy first" behaviour.
> 
> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
> Acked-by: Michael Neuling <mikey@neuling.org>

Series applied to powerpc next.

https://git.kernel.org/powerpc/c/83039f22ba2f6aff935a2acbb6bf67

cheers

      parent reply	other threads:[~2018-07-23 15:11 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-11  7:10 [PATCH 1/3] selftests/powerpc: Remove Power9 copy_unaligned test Michael Ellerman
2018-07-11  7:10 ` [PATCH 2/3] selftests/powerpc: Remove Power9 paste tests Michael Ellerman
2018-07-12  2:00   ` Michael Neuling
2018-07-11  7:10 ` [PATCH 3/3] selftests/powerpc: Consolidate copy/paste test logic Michael Ellerman
2018-07-12  2:00 ` [PATCH 1/3] selftests/powerpc: Remove Power9 copy_unaligned test Michael Neuling
2018-07-23 15:11 ` Michael Ellerman [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=41Z4h508fJz9s7Q@ozlabs.org \
    --to=patch-notifications@ellerman.id.au \
    --cc=chris@distroguy.com \
    --cc=linuxppc-dev@ozlabs.org \
    --cc=mikey@neuling.org \
    --cc=mpe@ellerman.id.au \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.