[PATCH] x86: make sparsemem more available

From: Jeff Chua
Date: Wed Aug 06 2008 - 07:09:53 EST


With CONFIG_X86_PC, I can set CONFIG_SPARSEMEM=y.

With CONFIG_X86_GENERICARCH, CONFIG_SPARSEMEM depends on CONFIG_NUMA.

I'm using the patch below to enable sparsemem instead of flatmem.
System booted and is running.

Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
arch/x86/Kconfig | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 7917962..e2305c7 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1035,7 +1035,7 @@ config HAVE_ARCH_ALLOC_REMAP

config ARCH_FLATMEM_ENABLE
def_bool y
- depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && X86_PC && !NUMA
+ depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && !NUMA

config ARCH_DISCONTIGMEM_ENABLE
def_bool y
@@ -1051,7 +1051,7 @@ config ARCH_SPARSEMEM_DEFAULT

config ARCH_SPARSEMEM_ENABLE
def_bool y
- depends on X86_64 || NUMA || (EXPERIMENTAL && X86_PC)
+ depends on X86_64 || NUMA || (EXPERIMENTAL && X86_PC) || X86_GENERICARCH
select SPARSEMEM_STATIC if X86_32
select SPARSEMEM_VMEMMAP_ENABLE if X86_64

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