From: Boqun Feng <boqun.feng@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Olof Johansson <olof@lixom.net>,
Geoff Levand <geoff@infradead.org>,
Boqun Feng <boqun.feng@gmail.com>
Subject: [PATCH] powerpc: Kconfig: remove BE-only platforms from LE kernel build
Date: Mon, 7 Sep 2015 07:58:00 +0800 [thread overview]
Message-ID: <1441583880-17824-1-git-send-email-boqun.feng@gmail.com> (raw)
Currently, little endian is only supported on powernv and pseries,
however, Kconfigs still allow us to include other platforms in a LE
kernel, this may result in space wasting or even build error if some
BE-only platforms always assume they are built for a BE kernel. So just
modify the Kconfigs of BE-only platforms to remove them from being built
for a LE kernel.
For 32bit only platforms, nothing needs to be done, because
CPU_LITTLE_ENDIAN depends on PPC64. For 64bit supported platforms, add
CPU_BIG_ENDIAN to dependencies explicitly, so that these platforms will
be disabled for LE [Suggested-by: Cédric Le Goater <clg@fr.ibm.com>].
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
---
arch/powerpc/platforms/cell/Kconfig | 4 ++--
arch/powerpc/platforms/maple/Kconfig | 2 +-
arch/powerpc/platforms/pasemi/Kconfig | 2 +-
arch/powerpc/platforms/powermac/Kconfig | 2 +-
arch/powerpc/platforms/ps3/Kconfig | 2 +-
5 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index 2f23133..808a904 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -25,7 +25,7 @@ config PPC_CELL_NATIVE
config PPC_IBM_CELL_BLADE
bool "IBM Cell Blade"
- depends on PPC64 && PPC_BOOK3S
+ depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
select PPC_CELL_NATIVE
select PPC_OF_PLATFORM_PCI
select PCI
@@ -35,7 +35,7 @@ config PPC_IBM_CELL_BLADE
config PPC_CELL_QPACE
bool "IBM Cell - QPACE"
- depends on PPC64 && PPC_BOOK3S
+ depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
select PPC_CELL_COMMON
config AXON_MSI
diff --git a/arch/powerpc/platforms/maple/Kconfig b/arch/powerpc/platforms/maple/Kconfig
index 1ea621a..e359d0d 100644
--- a/arch/powerpc/platforms/maple/Kconfig
+++ b/arch/powerpc/platforms/maple/Kconfig
@@ -1,5 +1,5 @@
config PPC_MAPLE
- depends on PPC64 && PPC_BOOK3S
+ depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
bool "Maple 970FX Evaluation Board"
select PCI
select MPIC
diff --git a/arch/powerpc/platforms/pasemi/Kconfig b/arch/powerpc/platforms/pasemi/Kconfig
index a2aeb32..00d4b28 100644
--- a/arch/powerpc/platforms/pasemi/Kconfig
+++ b/arch/powerpc/platforms/pasemi/Kconfig
@@ -1,5 +1,5 @@
config PPC_PASEMI
- depends on PPC64 && PPC_BOOK3S
+ depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
bool "PA Semi SoC-based platforms"
default n
select MPIC
diff --git a/arch/powerpc/platforms/powermac/Kconfig b/arch/powerpc/platforms/powermac/Kconfig
index 607124b..43c6062 100644
--- a/arch/powerpc/platforms/powermac/Kconfig
+++ b/arch/powerpc/platforms/powermac/Kconfig
@@ -1,6 +1,6 @@
config PPC_PMAC
bool "Apple PowerMac based machines"
- depends on PPC_BOOK3S
+ depends on PPC_BOOK3S && CPU_BIG_ENDIAN
select MPIC
select PCI
select PPC_INDIRECT_PCI if PPC32
diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig
index 56f2740..b27f40f 100644
--- a/arch/powerpc/platforms/ps3/Kconfig
+++ b/arch/powerpc/platforms/ps3/Kconfig
@@ -1,6 +1,6 @@
config PPC_PS3
bool "Sony PS3"
- depends on PPC64 && PPC_BOOK3S
+ depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
select PPC_CELL
select USB_OHCI_LITTLE_ENDIAN
select USB_OHCI_BIG_ENDIAN_MMIO
--
2.5.1
next reply other threads:[~2015-09-06 23:58 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-06 23:58 Boqun Feng [this message]
2015-09-08 17:04 ` [PATCH] powerpc: Kconfig: remove BE-only platforms from LE kernel build Geoff Levand
2015-09-09 2:26 ` Michael Ellerman
2015-09-09 3:25 ` Boqun Feng
2015-09-09 5:48 ` Michael Ellerman
2015-09-18 0:22 ` Boqun Feng
2015-09-18 9:49 ` Michael Ellerman
2015-09-18 9:59 ` Boqun Feng
2015-10-02 7:47 ` Michael Ellerman
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=1441583880-17824-1-git-send-email-boqun.feng@gmail.com \
--to=boqun.feng@gmail.com \
--cc=arnd@arndb.de \
--cc=benh@kernel.crashing.org \
--cc=geoff@infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
--cc=olof@lixom.net \
--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).