Patchwork [2/5] powerpc: Introduce CONFIG_PPC_BOOK3S

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Submitter Benjamin Herrenschmidt
Date June 3, 2009, 7:17 a.m.
Message ID <20090603071752.5BB91DDDF7@ozlabs.org>
Download mbox | patch
Permalink /patch/28040/
State Accepted, archived
Delegated to: Benjamin Herrenschmidt
Headers show

Comments

Benjamin Herrenschmidt - June 3, 2009, 7:17 a.m.
This patch introduce a new Kconfig option, CONFIG_PPC_BOOK3S
that represents processors that are compliant with the "classic"
(aka "server") variant of the PowerPC architecture.

It replaces CONFIG_6xx on 32-bit (though the symbol is still
defined for compatibility) and encompass all currently supported
64-bit processors.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

 arch/powerpc/platforms/Kconfig.cputype |   22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

Patch

--- linux-work.orig/arch/powerpc/platforms/Kconfig.cputype	2009-06-03 11:48:23.000000000 +1000
+++ linux-work/arch/powerpc/platforms/Kconfig.cputype	2009-06-03 15:04:56.000000000 +1000
@@ -9,7 +9,6 @@  menu "Processor support"
 choice
 	prompt "Processor Type"
 	depends on PPC32
-	default 6xx
 	help
 	  There are five families of 32 bit PowerPC chips supported.
 	  The most common ones are the desktop and server CPUs (601, 603,
@@ -21,7 +20,7 @@  choice
 
 	  If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
 
-config 6xx
+config PPC_BOOK3S
 	bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
 	select PPC_FPU
 
@@ -57,13 +56,11 @@  config E200
 
 endchoice
 
-# Until we have a choice of exclusive CPU types on 64-bit, we always
-# use PPC_BOOK3S. On 32-bit, this is equivalent to 6xx which is
-# "classic" MMU
-
 config PPC_BOOK3S
-       def_bool y
-       depends on PPC64 || 6xx
+	default y
+       	depends on PPC64
+	select PPC_FPU
+
 
 config POWER4_ONLY
 	bool "Optimize for POWER4"
@@ -74,6 +71,10 @@  config POWER4_ONLY
 	  The resulting binary will not work on POWER3 or RS64 processors
 	  when compiled with binutils 2.15 or later.
 
+config 6xx
+	def_bool y
+	depends on PPC32 && PPC_BOOK3S
+
 config POWER3
 	bool
 	depends on PPC64 && PPC_BOOK3S
@@ -202,9 +203,8 @@  config SPE
 	  If in doubt, say Y here.
 
 config PPC_STD_MMU
-	bool
-	depends on 6xx || PPC64
-	default y
+	def_bool y
+	depends on PPC_BOOK3S
 
 config PPC_STD_MMU_32
 	def_bool y