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| author | Mike Rapoport <rppt@linux.ibm.com> | 2020-12-14 19:10:07 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-15 12:13:43 -0800 |
| commit | 6b2ad8d763727b887d85c990747271ee804d9abb (patch) | |
| tree | e52dd2b587fc11413fe1ca65690c6f2f98319839 /arch/m68k/Kconfig.cpu | |
| parent | 050b2da268f8fc4f8123f6462c430a61547b2f7b (diff) | |
| download | lwn-6b2ad8d763727b887d85c990747271ee804d9abb.tar.gz lwn-6b2ad8d763727b887d85c990747271ee804d9abb.zip | |
m68k/mm: make node data and node setup depend on CONFIG_DISCONTIGMEM
The pg_data_t node structures and their initialization currently depends on
!CONFIG_SINGLE_MEMORY_CHUNK. Since they are required only for DISCONTIGMEM
make this dependency explicit and replace usage of
CONFIG_SINGLE_MEMORY_CHUNK with CONFIG_DISCONTIGMEM where appropriate.
The CONFIG_SINGLE_MEMORY_CHUNK was implicitly disabled on the ColdFire MMU
variant, although it always presumed a single memory bank. As there is no
actual need for DISCONTIGMEM in this case, make sure that ColdFire MMU
systems set CONFIG_SINGLE_MEMORY_CHUNK to 'y'.
Link: https://lkml.kernel.org/r/20201101170454.9567-12-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Meelis Roos <mroos@linux.ee>
Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/m68k/Kconfig.cpu')
| -rw-r--r-- | arch/m68k/Kconfig.cpu | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu index 694c4fca9f5d..e8ad721e52f6 100644 --- a/arch/m68k/Kconfig.cpu +++ b/arch/m68k/Kconfig.cpu @@ -373,7 +373,7 @@ config RMW_INSNS config SINGLE_MEMORY_CHUNK bool "Use one physical chunk of memory only" if ADVANCED && !SUN3 depends on MMU - default y if SUN3 + default y if SUN3 || MMU_COLDFIRE select NEED_MULTIPLE_NODES help Ignore all but the first contiguous chunk of physical memory for VM @@ -406,7 +406,7 @@ config M68K_L2_CACHE config NODES_SHIFT int default "3" - depends on !SINGLE_MEMORY_CHUNK + depends on DISCONTIGMEM config CPU_HAS_NO_BITFIELDS bool |