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| author | Andy Whitcroft <apw@shadowen.org> | 2005-06-23 09:08:01 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-23 18:45:05 +0200 |
| commit | 510f8fa7ba18320d408dd3093663e58f5664f2f0 (patch) | |
| tree | e355a1268cc9f42fac7e4b904d67e450775fb91f | |
| parent | [PATCH] sparsemem hotplug base (diff) | |
| download | linux-510f8fa7ba18320d408dd3093663e58f5664f2f0.tar.xz linux-510f8fa7ba18320d408dd3093663e58f5664f2f0.zip | |
[PATCH] ppc64: add early_pfn_to_nid
Provide an implementation of early_pfn_to_nid for PPC64. This is used by
memory models to determine the node from which to take allocations before the
memory allocators are fully initialised.
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Martin Bligh <mbligh@aracnet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/ppc64/Kconfig | 4 | ||||
| -rw-r--r-- | include/asm-ppc64/mmzone.h | 5 |
2 files changed, 9 insertions, 0 deletions
diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig index 85f8fcf44b6c..3c8bfd0345cc 100644 --- a/arch/ppc64/Kconfig +++ b/arch/ppc64/Kconfig @@ -211,6 +211,10 @@ config ARCH_FLATMEM_ENABLE source "mm/Kconfig" +config HAVE_ARCH_EARLY_PFN_TO_NID + bool + default y + # Some NUMA nodes have memory ranges that span # other nodes. Even though a pfn is valid and # between a node's start and end pfns, it may not diff --git a/include/asm-ppc64/mmzone.h b/include/asm-ppc64/mmzone.h index cbfc5ecfe875..ecc4b07507d6 100644 --- a/include/asm-ppc64/mmzone.h +++ b/include/asm-ppc64/mmzone.h @@ -90,4 +90,9 @@ static inline int pa_to_nid(unsigned long pa) #define discontigmem_pfn_valid(pfn) ((pfn) < num_physpages) #endif /* CONFIG_DISCONTIGMEM */ + +#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID +#define early_pfn_to_nid(pfn) pa_to_nid(((unsigned long)pfn) << PAGE_SHIFT) +#endif + #endif /* _ASM_MMZONE_H_ */ |