Commit b2a37fb2 authored by Mike Rapoport (IBM)'s avatar Mike Rapoport (IBM) Committed by Andrew Morton
Browse files

sh: reword ARCH_FORCE_MAX_ORDER prompt and help text 

The prompt and help text of ARCH_FORCE_MAX_ORDER are not even close to
describe this configuration option.

Update both to actually describe what this option does.

[rppt@kernel.org: tweak ARCH_FORCE_MAX_ORDER's `range']
  Link: https://lkml.kernel.org/r/20230325060828.2662773-12-rppt@kernel.org
Link: https://lkml.kernel.org/r/20230324052233.2654090-12-rppt@kernel.org


Signed-off-by: default avatarMike Rapoport (IBM) <rppt@kernel.org>
Acked-by: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: default avatarZi Yan <ziy@nvidia.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: David Miller <davem@davemloft.net>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Guo Ren <guoren@kernel.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Rich Felker <dalias@libc.org>
Cc: "Russell King (Oracle)" <linux@armlinux.org.uk>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 1e8fed87

arch/sh/mm/Kconfig

+9 −7
Original line number Diff line number Diff line
@@ -19,7 +19,7 @@ config PAGE_OFFSET 
	default "0x00000000"



config ARCH_FORCE_MAX_ORDER

	int "Maximum zone order"

	int "Order of maximal physically contiguous allocations"

	range 8 63 if PAGE_SIZE_16KB

	default "8" if PAGE_SIZE_16KB

	range 6 63 if PAGE_SIZE_64KB
@@ -28,16 +28,18 @@ config ARCH_FORCE_MAX_ORDER 
	default "13" if !MMU

	default "10"

	help

	  The kernel memory allocator divides physically contiguous memory

	  blocks into "zones", where each zone is a power of two number of

	  pages.  This option selects the largest power of two that the kernel

	  keeps in the memory allocator.  If you need to allocate very large

	  blocks of physically contiguous memory, then you may need to

	  increase this value.

	  The kernel page allocator limits the size of maximal physically

	  contiguous allocations. The limit is called MAX_ORDER and it

	  defines the maximal power of two of number of pages that can be

	  allocated as a single contiguous block. This option allows

	  overriding the default setting when ability to allocate very

	  large blocks of physically contiguous memory is required.



	  The page size is not necessarily 4KB. Keep this in mind when

	  choosing a value for this option.



	  Don't change if unsure.



config MEMORY_START

	hex "Physical memory start address"

	default "0x08000000"