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authorMatt Tolentino <metolent@snoqualmie.dp.intel.com>2005-06-23 00:08:06 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-23 09:45:06 -0700
commit2b97690f4cd960779fb351b7cd9974390afabb36 (patch)
tree26a94d00bc67f3036cea966ba7435f8e1efd3779 /include/asm-x86_64
parent1035faf1b19efb83d5626985240f52cd149dd39b (diff)
downloadlinux-2b97690f4cd960779fb351b7cd9974390afabb36.tar.gz
[PATCH] reorganize x86-64 NUMA and DISCONTIGMEM config options
In order to use the alternative sparsemem implmentation for NUMA kernels, we need to reorganize the config options. This patch effectively abstracts out the CONFIG_DISCONTIGMEM options to CONFIG_NUMA in most cases. Thus, the discontigmem implementation may be employed as always, but the sparsemem implementation may be used alternatively. Signed-off-by: Matt Tolentino <matthew.e.tolentino@intel.com> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-x86_64')
-rw-r--r--include/asm-x86_64/io.h5
-rw-r--r--include/asm-x86_64/mmzone.h15
-rw-r--r--include/asm-x86_64/page.h4
-rw-r--r--include/asm-x86_64/topology.h4
4 files changed, 13 insertions, 15 deletions
diff --git a/include/asm-x86_64/io.h b/include/asm-x86_64/io.h
index 94202703fae..37fc3f149a5 100644
--- a/include/asm-x86_64/io.h
+++ b/include/asm-x86_64/io.h
@@ -124,12 +124,7 @@ extern inline void * phys_to_virt(unsigned long address)
/*
* Change "struct page" to physical address.
*/
-#ifdef CONFIG_DISCONTIGMEM
-#include <asm/mmzone.h>
#define page_to_phys(page) ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)
-#else
-#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT)
-#endif
#include <asm-generic/iomap.h>
diff --git a/include/asm-x86_64/mmzone.h b/include/asm-x86_64/mmzone.h
index ca4fc3fe0de..768413751b3 100644
--- a/include/asm-x86_64/mmzone.h
+++ b/include/asm-x86_64/mmzone.h
@@ -6,7 +6,7 @@
#include <linux/config.h>
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
#define VIRTUAL_BUG_ON(x)
@@ -30,17 +30,16 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
return nid;
}
-#define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
-
-#define kvaddr_to_nid(kaddr) phys_to_nid(__pa(kaddr))
#define NODE_DATA(nid) (node_data[nid])
#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
#define node_end_pfn(nid) (NODE_DATA(nid)->node_start_pfn + \
NODE_DATA(nid)->node_spanned_pages)
-#define local_mapnr(kvaddr) \
- ( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) )
+#ifdef CONFIG_DISCONTIGMEM
+
+#define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
+#define kvaddr_to_nid(kaddr) phys_to_nid(__pa(kaddr))
/* AK: this currently doesn't deal with invalid addresses. We'll see
if the 2.5 kernel doesn't pass them
@@ -57,4 +56,8 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
({ u8 nid__ = pfn_to_nid(pfn); \
nid__ != 0xff && (pfn) >= node_start_pfn(nid__) && (pfn) <= node_end_pfn(nid__); }))
#endif
+
+#define local_mapnr(kvaddr) \
+ ( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) )
+#endif
#endif
diff --git a/include/asm-x86_64/page.h b/include/asm-x86_64/page.h
index 9ce338c3a71..60130f4ca98 100644
--- a/include/asm-x86_64/page.h
+++ b/include/asm-x86_64/page.h
@@ -119,7 +119,9 @@ extern __inline__ int get_order(unsigned long size)
__pa(v); })
#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
-#ifndef CONFIG_DISCONTIGMEM
+#define __boot_va(x) __va(x)
+#define __boot_pa(x) __pa(x)
+#ifdef CONFIG_FLATMEM
#define pfn_to_page(pfn) (mem_map + (pfn))
#define page_to_pfn(page) ((unsigned long)((page) - mem_map))
#define pfn_valid(pfn) ((pfn) < max_mapnr)
diff --git a/include/asm-x86_64/topology.h b/include/asm-x86_64/topology.h
index 67f24e0ea81..da21573ec73 100644
--- a/include/asm-x86_64/topology.h
+++ b/include/asm-x86_64/topology.h
@@ -3,7 +3,7 @@
#include <linux/config.h>
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
#include <asm/mpspec.h>
#include <asm/bitops.h>
@@ -37,7 +37,6 @@ static inline cpumask_t __pcibus_to_cpumask(int bus)
}
#define pcibus_to_cpumask(bus) __pcibus_to_cpumask(bus->number)
-#ifdef CONFIG_NUMA
/* sched_domains SD_NODE_INIT for x86_64 machines */
#define SD_NODE_INIT (struct sched_domain) { \
.span = CPU_MASK_NONE, \
@@ -59,7 +58,6 @@ static inline cpumask_t __pcibus_to_cpumask(int bus)
.balance_interval = 1, \
.nr_balance_failed = 0, \
}
-#endif
#endif