linuxppc-dev.lists.ozlabs.org archive mirror
 help / color / mirror / Atom feed
From: Anton Blanchard <anton@samba.org>
To: benh@kernel.crashing.org, paulus@samba.org
Cc: linuxppc-dev@lists.ozlabs.org
Subject: [PATCH] powerpc: Use -mcpu=power7 on ppc64 little endian builds
Date: Tue, 22 Oct 2013 11:05:25 +1100	[thread overview]
Message-ID: <20131022110525.4325f071@kryten> (raw)


Using -mcpu=power7 allows gcc to use a number of new instructions
including 64 bit byte reversed loads.

Signed-off-by: Anton Blanchard <anton@samba.org>
---

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 6704e2e..c2a566f 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -93,22 +93,23 @@ choice
 
 config GENERIC_CPU
 	bool "Generic"
+	depends on !CPU_LITTLE_ENDIAN
 
 config CELL_CPU
 	bool "Cell Broadband Engine"
-	depends on PPC_BOOK3S_64
+	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 
 config POWER4_CPU
 	bool "POWER4"
-	depends on PPC_BOOK3S_64
+	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 
 config POWER5_CPU
 	bool "POWER5"
-	depends on PPC_BOOK3S_64
+	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 
 config POWER6_CPU
 	bool "POWER6"
-	depends on PPC_BOOK3S_64
+	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 
 config POWER7_CPU
 	bool "POWER7"

                 reply	other threads:[~2013-10-22  0:05 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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=20131022110525.4325f071@kryten \
    --to=anton@samba.org \
    --cc=benh@kernel.crashing.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=paulus@samba.org \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).