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authorSam Ravnborg <sam@ravnborg.org>2012-07-26 11:02:27 +0000
committerDavid S. Miller <davem@davemloft.net>2012-07-26 16:46:17 -0700
commit9a4d5b93cb67b63d896579f416109274235a7a65 (patch)
tree5ea825ceebd3e62396befb1a76607c4eb5719da7 /arch/sparc
parentd8a1b2b94ca5fe219b3c77389e2424145c24c668 (diff)
sparc32: move kmap_init() to highmem.c
Try to keep highmem support in a more central place. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/include/asm/highmem.h1
-rw-r--r--arch/sparc/mm/highmem.c17
-rw-r--r--arch/sparc/mm/init_32.c13
3 files changed, 17 insertions, 14 deletions
diff --git a/arch/sparc/include/asm/highmem.h b/arch/sparc/include/asm/highmem.h
index 639338353909..4f9e15c757e2 100644
--- 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
index 4d5f8b3c4090..449f864f0cef 100644
--- 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
index 020d2afa0030..9f1162fbad37 100644
--- 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");