sparc32: move kmap_init() to highmem.c

Try to keep highmem support in a more central place. Signed-off-by: Sam Ravnborg <[email protected]> Signed-off-by: David S. Miller <[email protected]>
ixin · Jul 26, 2012 · 9a4d5b9 · 9a4d5b9
1 parent d8a1b2b
commit 9a4d5b9
Show file tree

Hide file tree

Showing 3 changed files with 17 additions and 14 deletions.
diff --git a/arch/sparc/include/asm/highmem.h b/arch/sparc/include/asm/highmem.h
@@ -28,7 +28,6 @@
 /* declarations for highmem.c */
 extern unsigned long highstart_pfn, highend_pfn;
 
-extern pte_t *kmap_pte;
 extern pgprot_t kmap_prot;
 extern pte_t *pkmap_page_table;
 

diff --git a/arch/sparc/mm/highmem.c b/arch/sparc/mm/highmem.c
@@ -31,6 +31,23 @@
 #include <asm/pgalloc.h>
 #include <asm/vaddrs.h>
 
+pgprot_t kmap_prot;
+
+static pte_t *kmap_pte;
+
+void __init kmap_init(void)
+{
+	unsigned long address;
+	pmd_t *dir;
+
+	address = __fix_to_virt(FIX_KMAP_BEGIN);
+	dir = pmd_offset(pgd_offset_k(address), address);
+
+        /* cache the first kmap pte */
+        kmap_pte = pte_offset_kernel(dir, address);
+        kmap_prot = __pgprot(SRMMU_ET_PTE | SRMMU_PRIV | SRMMU_CACHE);
+}
+
 void *kmap_atomic(struct page *page)
 {
 	unsigned long vaddr;

diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
@@ -52,19 +52,6 @@ extern unsigned int sparc_ramdisk_size;
 
 unsigned long highstart_pfn, highend_pfn;
 
-pte_t *kmap_pte;
-pgprot_t kmap_prot;
-
-#define kmap_get_fixmap_pte(vaddr) \
-	pte_offset_kernel(pmd_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr))
-
-void __init kmap_init(void)
-{
-	/* cache the first kmap pte */
-	kmap_pte = kmap_get_fixmap_pte(__fix_to_virt(FIX_KMAP_BEGIN));
-	kmap_prot = __pgprot(SRMMU_ET_PTE | SRMMU_PRIV | SRMMU_CACHE);
-}
-
 void show_mem(unsigned int filter)
 {
 	printk("Mem-info:\n");