From 510f8fa7ba18320d408dd3093663e58f5664f2f0 Mon Sep 17 00:00:00 2001 From: Andy Whitcroft Date: Thu, 23 Jun 2005 00:08:01 -0700 Subject: [PATCH] [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 Signed-off-by: Dave Hansen Signed-off-by: Martin Bligh Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc64/Kconfig | 4 ++++ include/asm-ppc64/mmzone.h | 5 +++++ 2 files changed, 9 insertions(+) diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig index 85f8fcf..3c8bfd0 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 cbfc5ec..ecc4b07 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_ */ -- 2.7.4