From: Mike Rapoport <rppt@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Greg Ungerer <gerg@linux-m68k.org>,
John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
Jonathan Corbet <corbet@lwn.net>,
Matt Turner <mattst88@gmail.com>, Meelis Roos <mroos@linux.ee>,
Michael Schmitz <schmitzmic@gmail.com>,
Mike Rapoport <rppt@kernel.org>,
Mike Rapoport <rppt@linux.ibm.com>,
Russell King <linux@armlinux.org.uk>,
Tony Luck <tony.luck@intel.com>,
Vineet Gupta <vgupta@synopsys.com>, Will Deacon <will@kernel.org>,
linux-alpha@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-ia64@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
linux-mm@kvack.org, linux-snps-arc@lists.infradead.org
Subject: [PATCH 07/13] ia64: make SPARSEMEM default and disable DISCONTIGMEM
Date: Tue, 27 Oct 2020 13:29:49 +0200 [thread overview]
Message-ID: <20201027112955.14157-8-rppt@kernel.org> (raw)
In-Reply-To: <20201027112955.14157-1-rppt@kernel.org>
From: Mike Rapoport <rppt@linux.ibm.com>
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.
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
---
arch/ia64/Kconfig | 6 +++---
1 file 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"
--
2.28.0
next prev parent reply other threads:[~2020-10-27 11:30 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-27 11:29 [PATCH 00/13] arch, mm: deprecate DISCONTIGMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 01/13] alpha: switch from DISCONTIGMEM to SPARSEMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 02/13] ia64: remove custom __early_pfn_to_nid() Mike Rapoport
2020-10-27 11:29 ` [PATCH 03/13] ia64: remove 'ifdef CONFIG_ZONE_DMA32' statements Mike Rapoport
2020-10-27 11:29 ` [PATCH 04/13] ia64: discontig: paging_init(): remove local max_pfn calculation Mike Rapoport
2020-10-27 11:29 ` [PATCH 05/13] ia64: split virtual map initialization out of paging_init() Mike Rapoport
2020-10-27 11:29 ` [PATCH 06/13] ia64: forbid using VIRTUAL_MEM_MAP with FLATMEM Mike Rapoport
2020-10-27 11:29 ` Mike Rapoport [this message]
2020-12-12 16:01 ` [PATCH 07/13] ia64: make SPARSEMEM default and disable DISCONTIGMEM Guenter Roeck
2020-12-13 8:36 ` Mike Rapoport
2020-10-27 11:29 ` [PATCH 08/13] arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL Mike Rapoport
2020-10-27 11:29 ` [PATCH 09/13] arm, arm64: move free_unused_memmap() to generic mm Mike Rapoport
2020-10-27 11:29 ` [PATCH 10/13] arc: use FLATMEM with freeing of unused memory map instead of DISCONTIGMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 11/13] m68k/mm: make node data and node setup depend on CONFIG_DISCONTIGMEM Mike Rapoport
2020-10-28 9:25 ` Geert Uytterhoeven
2020-10-28 11:16 ` Mike Rapoport
2020-10-28 18:14 ` Michael Schmitz
2020-10-28 18:57 ` Mike Rapoport
2020-11-01 16:55 ` Mike Rapoport
2020-10-27 11:29 ` [PATCH 12/13] m68k/mm: enable use of generic memory_model.h for !DISCONTIGMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 13/13] m68k: deprecate DISCONTIGMEM Mike Rapoport
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