提交 9a4d5b93 编写于 作者: S Sam Ravnborg 提交者: David S. Miller

sparc32: move kmap_init() to highmem.c

Try to keep highmem support in a more central place.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 d8a1b2b9
......@@ -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;
......
......@@ -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;
......
......@@ -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");
......
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