diff options
| author |   Mike Rapoport <rppt@linux.ibm.com> | 2020-12-14 19:09:51 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-15 12:13:42 -0800 |
| commit | 214496cb18700fd7c5206ac33768876dbf68b4df (patch) | |
| tree | 32f825f452063f4795dfbd9e185a1cdac6a64049 /arch/ia64 | |
| parent | ia64: forbid using VIRTUAL_MEM_MAP with FLATMEM (diff) | |
| download | linux-dev-214496cb18700fd7c5206ac33768876dbf68b4df.tar.xz linux-dev-214496cb18700fd7c5206ac33768876dbf68b4df.zip | |
ia64: make SPARSEMEM default and disable DISCONTIGMEM
SPARSEMEM memory model suitable for systems with large holes in their
phyiscal memory layout. With SPARSEMEM_VMEMMAP enabled it provides
pfn_to_page() and page_to_pfn() as fast as FLATMEM.
Make it the default memory model for IA-64 and disable DISCONTIGMEM which
is considered obsolete for quite some time.
Link: https://lkml.kernel.org/r/20201101170454.9567-8-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/ia64')
| -rw-r--r-- | arch/ia64/Kconfig | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 83de0273d474..6e67d6110249 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -288,6 +288,7 @@ config ARCH_SELECT_MEMORY_MODEL config ARCH_DISCONTIGMEM_ENABLE def_bool y + depends on BROKEN help Say Y to support efficient handling of discontiguous physical memory, for architectures which are either NUMA (Non-Uniform Memory Access) @@ -299,12 +300,11 @@ config ARCH_FLATMEM_ENABLE config ARCH_SPARSEMEM_ENABLE def_bool y - depends on ARCH_DISCONTIGMEM_ENABLE select SPARSEMEM_VMEMMAP_ENABLE -config ARCH_DISCONTIGMEM_DEFAULT +config ARCH_SPARSEMEM_DEFAULT def_bool y - depends on ARCH_DISCONTIGMEM_ENABLE + depends on ARCH_SPARSEMEM_ENABLE config NUMA bool "NUMA support" |