Commit 4eeef098 authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

powerpc/44x: Remove STDBINUTILS kconfig option 



STDBINUTILS is just a toggle to allow 256k page size to appear in the
possible page sizes list for the 44x.

Make 256k page size option appear all the time with an explicit
warning about binutils, and remove this unnecessary STDBINUTILS
config option.

Signed-off-by: default avatarChristophe Leroy <christophe.leroy@csgroup.eu>
[mpe: Incorporate help text changes from David Laight]
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/f9981e819009aa121a998dc483052ec76f78f991.1611128938.git.christophe.leroy@csgroup.eu
parent 910a0cb6

arch/powerpc/Kconfig

+6 −20
Original line number Diff line number Diff line
@@ -716,18 +716,6 @@ config ARCH_MEMORY_PROBE 
	def_bool y

	depends on MEMORY_HOTPLUG



config STDBINUTILS

	bool "Using standard binutils settings"

	depends on 44x

	default y

	help

	  Turning this option off allows you to select 256KB PAGE_SIZE on 44x.

	  Note, that kernel will be able to run only those applications,

	  which had been compiled using binutils later than 2.17.50.0.3 with

	  '-zmax-page-size' set to 256K (the default is 64K). Or, if using

	  the older binutils, you can patch them with a trivial patch, which

	  changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000.



choice

	prompt "Page size"

	default PPC_4K_PAGES
@@ -767,17 +755,15 @@ config PPC_64K_PAGES 
	select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64



config PPC_256K_PAGES

	bool "256k page size"

	depends on 44x && !STDBINUTILS && !PPC_47x

	bool "256k page size (Requires non-standard binutils settings)"

	depends on 44x && !PPC_47x

	help

	  Make the page size 256k.



	  As the ELF standard only requires alignment to support page

	  sizes up to 64k, you will need to compile all of your user

	  space applications with a non-standard binutils settings

	  (see the STDBINUTILS description for details).



	  Say N unless you know what you are doing.

	  The kernel will only be able to run applications that have been

	  compiled with '-zmax-page-size' set to 256K (the default is 64K) using

	  binutils later than 2.17.50.0.3, or by patching the ELF_MAXPAGESIZE

	  definition from 0x10000 to 0x40000 in older versions.



endchoice