diff options
| author | Mike Rapoport (IBM) <[email protected]> | 2023-03-24 08:22:30 +0300 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2023-04-18 16:29:46 -0700 |
| commit | b2a37fb2b54fd46bfa799268717f558d9e168376 (patch) | |
| tree | 46d750cbfde3553e6ed920eae711c660b01f2ea7 | |
| parent | 1e8fed873e7499bab8da05b2006f6a3960796c68 (diff) | |
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.
[[email protected]: tweak ARCH_FORCE_MAX_ORDER's `range']
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Mike Rapoport (IBM) <[email protected]>
Acked-by: Kirill A. Shutemov <[email protected]>
Reviewed-by: Zi Yan <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Christophe Leroy <[email protected]>
Cc: David Miller <[email protected]>
Cc: Dinh Nguyen <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: John Paul Adrian Glaubitz <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: "Russell King (Oracle)" <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
| -rw-r--r-- | arch/sh/mm/Kconfig | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index 40271090bd7d..238b2772751e 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig @@ -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" |