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authorDavid S. Miller <davem@sunset.davemloft.net>2006-03-08 02:16:07 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-03-20 01:14:22 -0800
commitd1112018b4bc82adf5c8a9c15a08954328f023ae (patch)
tree4d94ef6c153f028cfaaff711cf7d4f07aa90e9b4 /include/asm-sparc64
parentee29074d3bd23848905f52c515974e0cd0219faa (diff)
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[SPARC64]: Move over to sparsemem.
This has been pending for a long time, and the fact that we waste a ton of ram on some configurations kind of pushed things over the edge. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64')
-rw-r--r--include/asm-sparc64/numnodes.h6
-rw-r--r--include/asm-sparc64/page.h9
-rw-r--r--include/asm-sparc64/pgtable.h3
-rw-r--r--include/asm-sparc64/sparsemem.h12
4 files changed, 19 insertions, 11 deletions
diff --git a/include/asm-sparc64/numnodes.h b/include/asm-sparc64/numnodes.h
new file mode 100644
index 0000000..017e7e7
--- /dev/null
+++ b/include/asm-sparc64/numnodes.h
@@ -0,0 +1,6 @@
+#ifndef _SPARC64_NUMNODES_H
+#define _SPARC64_NUMNODES_H
+
+#define NODES_SHIFT 0
+
+#endif /* !(_SPARC64_NUMNODES_H) */
diff --git a/include/asm-sparc64/page.h b/include/asm-sparc64/page.h
index c277ac5..f6b4925 100644
--- a/include/asm-sparc64/page.h
+++ b/include/asm-sparc64/page.h
@@ -125,17 +125,10 @@ typedef unsigned long pgprot_t;
#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET)
#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
-/* PFNs are real physical page numbers. However, mem_map only begins to record
- * per-page information starting at pfn_base. This is to handle systems where
- * the first physical page in the machine is at some huge physical address,
- * such as 4GB. This is common on a partitioned E10000, for example.
- */
-extern struct page *pfn_to_page(unsigned long pfn);
-extern unsigned long page_to_pfn(struct page *);
+#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr)>>PAGE_SHIFT)
-#define pfn_valid(pfn) (((pfn)-(pfn_base)) < max_mapnr)
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
#define virt_to_phys __pa
diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h
index 75a2cd2..d427ce6 100644
--- a/include/asm-sparc64/pgtable.h
+++ b/include/asm-sparc64/pgtable.h
@@ -217,9 +217,6 @@ extern unsigned long pg_iobits;
extern unsigned long _PAGE_ALL_SZ_BITS;
extern unsigned long _PAGE_SZBITS;
-extern unsigned long phys_base;
-extern unsigned long pfn_base;
-
extern struct page *mem_map_zero;
#define ZERO_PAGE(vaddr) (mem_map_zero)
diff --git a/include/asm-sparc64/sparsemem.h b/include/asm-sparc64/sparsemem.h
new file mode 100644
index 0000000..ed5c9d8
--- /dev/null
+++ b/include/asm-sparc64/sparsemem.h
@@ -0,0 +1,12 @@
+#ifndef _SPARC64_SPARSEMEM_H
+#define _SPARC64_SPARSEMEM_H
+
+#ifdef __KERNEL__
+
+#define SECTION_SIZE_BITS 26
+#define MAX_PHYSADDR_BITS 42
+#define MAX_PHYSMEM_BITS 42
+
+#endif /* !(__KERNEL__) */
+
+#endif /* !(_SPARC64_SPARSEMEM_H) */
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