From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: [1/3] add early_pfn_to_nid for ppc64 Message-Id: From: Andy Whitcroft Date: Wed, 04 May 2005 21:28:57 +0100 Sender: owner-linux-mm@kvack.org Return-Path: To: linuxppc64-dev@ozlabs.org, paulus@samba.org, anton@samba.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, apw@shadowen.org, haveblue@us.ibm.com, kravetz@us.ibm.com List-ID: 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 --- arch/ppc64/Kconfig | 4 ++++ include/asm-ppc64/mmzone.h | 5 +++++ 2 files changed, 9 insertions(+) diff -X /home/apw/brief/lib/vdiff.excl -rupN reference/arch/ppc64/Kconfig current/arch/ppc64/Kconfig --- reference/arch/ppc64/Kconfig 2005-05-04 20:54:41.000000000 +0100 +++ current/arch/ppc64/Kconfig 2005-05-04 20:54:48.000000000 +0100 @@ -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 -X /home/apw/brief/lib/vdiff.excl -rupN reference/include/asm-ppc64/mmzone.h current/include/asm-ppc64/mmzone.h --- reference/include/asm-ppc64/mmzone.h 2005-05-04 20:54:41.000000000 +0100 +++ current/include/asm-ppc64/mmzone.h 2005-05-04 20:54:48.000000000 +0100 @@ -90,4 +90,9 @@ static inline int pa_to_nid(unsigned lon #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_ */ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org