[SPARC64]: No longer set WANT_PAGE_VIRTUAL.

Also uninline pfn_to_page and page_to_pfn.
Struct page is now 8 bytes smaller.

arch/sparc64/kernel/smp.c

@@ -654,13 +654,13 @@ extern atomic_t dcpage_flushes_xcall;
 static __inline__ void __local_flush_dcache_page(struct page *page)
 {
 #if (L1DCACHE_SIZE > PAGE_SIZE)
-	__flush_dcache_page(page->virtual,
+	__flush_dcache_page(page_address(page),
 			    ((tlb_type == spitfire) &&
 			     page_mapping(page) != NULL));
 #else
 	if (page_mapping(page) != NULL &&
 	    tlb_type == spitfire)
-		__flush_icache_page(__pa(page->virtual));
+		__flush_icache_page(__pa(page_address(page)));
 #endif
 }
 
@@ -675,6 +675,7 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
 	if (cpu == this_cpu) {
 		__local_flush_dcache_page(page);
 	} else if (cpu_online(cpu)) {
+		void *pg_addr = page_address(page);
 		u64 data0;
 
 		if (tlb_type == spitfire) {
@@ -683,14 +684,14 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
 			if (page_mapping(page) != NULL)
 				data0 |= ((u64)1 << 32);
 			spitfire_xcall_deliver(data0,
-					       __pa(page->virtual),
-					       (u64) page->virtual,
+					       __pa(pg_addr),
+					       (u64) pg_addr,
 					       mask);
 		} else {
 			data0 =
 				((u64)&xcall_flush_dcache_page_cheetah);
 			cheetah_xcall_deliver(data0,
-					      __pa(page->virtual),
+					      __pa(pg_addr),
 					      0, mask);
 		}
 #ifdef CONFIG_DEBUG_DCFLUSH
@@ -703,6 +704,7 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu)
 
 void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
 {
+	void *pg_addr = page_address(page);
 	cpumask_t mask = cpu_online_map;
 	u64 data0;
 	int this_cpu = get_cpu();
@@ -719,13 +721,13 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
 		if (page_mapping(page) != NULL)
 			data0 |= ((u64)1 << 32);
 		spitfire_xcall_deliver(data0,
-				       __pa(page->virtual),
-				       (u64) page->virtual,
+				       __pa(pg_addr),
+				       (u64) pg_addr,
 				       mask);
 	} else {
 		data0 = ((u64)&xcall_flush_dcache_page_cheetah);
 		cheetah_xcall_deliver(data0,
-				      __pa(page->virtual),
+				      __pa(pg_addr),
 				      0, mask);
 	}
 #ifdef CONFIG_DEBUG_DCFLUSH

arch/sparc64/kernel/sparc64_ksyms.c

@@ -360,6 +360,8 @@ EXPORT_SYMBOL(__bzero_noasi);
 EXPORT_SYMBOL(phys_base);
 EXPORT_SYMBOL(pfn_base);
 EXPORT_SYMBOL(sparc64_valid_addr_bitmap);
+EXPORT_SYMBOL(page_to_pfn);
+EXPORT_SYMBOL(pfn_to_page);
 
 /* No version information on this, heavily used in inline asm,
  * and will always be 'void __ret_efault(void)'.

arch/sparc64/mm/init.c

@@ -137,13 +137,13 @@ __inline__ void flush_dcache_page_impl(struct page *page)
 #endif
 
 #if (L1DCACHE_SIZE > PAGE_SIZE)
-	__flush_dcache_page(page->virtual,
+	__flush_dcache_page(page_address(page),
 			    ((tlb_type == spitfire) &&
 			     page_mapping(page) != NULL));
 #else
 	if (page_mapping(page) != NULL &&
 	    tlb_type == spitfire)
-		__flush_icache_page(__pa(page->virtual));
+		__flush_icache_page(__pa(page_address(page)));
 #endif
 }
 
@@ -344,6 +344,16 @@ void flush_icache_range(unsigned long start, unsigned long end)
 	}
 }
 
+unsigned long page_to_pfn(struct page *page)
+{
+	return (unsigned long) ((page - mem_map) + pfn_base);
+}
+
+struct page *pfn_to_page(unsigned long pfn)
+{
+	return (mem_map + (pfn - pfn_base));
+}
+
 void show_mem(void)
 {
 	printk("Mem-info:\n");

include/asm-sparc64/io.h

@@ -19,8 +19,8 @@ extern unsigned long bus_to_virt_not_defined_use_pci_map(volatile void *addr);
 #define bus_to_virt bus_to_virt_not_defined_use_pci_map
 
 /* BIO layer definitions. */
-extern unsigned long phys_base, kern_base, kern_size;
-#define page_to_phys(page)	((((page) - mem_map) << PAGE_SHIFT)+phys_base)
+extern unsigned long kern_base, kern_size;
+#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
 #define BIO_VMERGE_BOUNDARY	8192
 
 /* Different PCI controllers we support have their PCI MEM space

include/asm-sparc64/page.h

@@ -14,9 +14,6 @@
 
 #ifndef __ASSEMBLY__
 
-/* Sparc64 is slow at multiplication, we prefer to use some extra space. */
-#define WANT_PAGE_VIRTUAL 1
-
 extern void _clear_page(void *page);
 #define clear_page(X)	_clear_page((void *)(X))
 struct page;
@@ -111,17 +108,19 @@ typedef unsigned long iopgprot_t;
  */
 #define PAGE_OFFSET		_AC(0xFFFFF80000000000,UL)
 
+#ifndef __ASSEMBLY__
+
 #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.
+ * 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_page(pfn)	(mem_map + ((pfn)-(pfn_base)))
-#define page_to_pfn(page)	((unsigned long)(((page) - mem_map) + pfn_base))
 #define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr)>>PAGE_SHIFT)
 
 #define pfn_valid(pfn)		(((pfn)-(pfn_base)) < max_mapnr)
@@ -130,8 +129,6 @@ typedef unsigned long iopgprot_t;
 #define virt_to_phys __pa
 #define phys_to_virt __va
 
-#ifndef __ASSEMBLY__
-
 /* The following structure is used to hold the physical
  * memory configuration of the machine.  This is filled in
  * probe_memory() and is later used by mem_init() to set up