From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [RFC][PATCH] unify pfn_to_page [3/25] arm pfn_toPage/page_to_pfn
Date: Mon, 06 Feb 2006 19:50:43 +0900 [thread overview]
Message-ID: <43E72A03.5080605@jp.fujitsu.com> (raw)
PFN_TO_NID()/ LOCAL_MAP_NR() is defined by each subarch.
arm can use generic funcs.
Signed-Off-By: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Index: cleanup_pfn_page/include/asm-arm/memory.h
===================================================================
--- cleanup_pfn_page.orig/include/asm-arm/memory.h
+++ cleanup_pfn_page/include/asm-arm/memory.h
@@ -172,9 +172,7 @@ static inline __deprecated void *bus_to_
* virt_addr_valid(k) indicates whether a virtual address is valid
*/
#ifndef CONFIG_DISCONTIGMEM
-
-#define page_to_pfn(page) (((page) - mem_map) + PHYS_PFN_OFFSET)
-#define pfn_to_page(pfn) ((mem_map + (pfn)) - PHYS_PFN_OFFSET)
+#define ARCH_PFN_OFFSET (PHYS_PFN_OFFSET)
#define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr))
#define virt_to_page(kaddr) (pfn_to_page(__pa(kaddr) >> PAGE_SHIFT))
@@ -190,12 +188,8 @@ static inline __deprecated void *bus_to_
*/
#include <linux/numa.h>
-#define page_to_pfn(page) \
- (( (page) - page_zone(page)->zone_mem_map) \
- + page_zone(page)->zone_start_pfn)
-
-#define pfn_to_page(pfn) \
- (PFN_TO_MAPBASE(pfn) + LOCAL_MAP_NR((pfn) << PAGE_SHIFT))
+#define arch_pfn_to_nid(pfn) (PFN_TO_NID(pfn))
+#define arch_local_map_nr(pfn, nid) (LOCAL_MAP_NR((pfn) << PAGE_SHIFT))
#define pfn_valid(pfn) \
({ \
reply other threads:[~2006-02-06 10:49 UTC|newest]
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