#include <asm/tlbflush.h>
#include "mm.h"
-pte_t *fixmap_page_table;
-
static inline void set_fixmap_pte(int idx, pte_t pte)
{
unsigned long vaddr = __fix_to_virt(idx);
- set_pte_ext(fixmap_page_table + idx, pte, 0);
+ pte_t *ptep = pte_offset_kernel(pmd_off_k(vaddr), vaddr);
+
+ set_pte_ext(ptep, pte, 0);
local_flush_tlb_kernel_page(vaddr);
}
static inline pte_t get_fixmap_pte(unsigned long vaddr)
{
- unsigned long idx = __virt_to_fix(vaddr);
- return *(fixmap_page_table + idx);
+ pte_t *ptep = pte_offset_kernel(pmd_off_k(vaddr), vaddr);
+
+ return *ptep;
}
void *kmap(struct page *page)
* With debugging enabled, kunmap_atomic forces that entry to 0.
* Make sure it was indeed properly unmapped.
*/
- BUG_ON(!pte_none(*(fixmap_page_table + idx)));
+ BUG_ON(!pte_none(get_fixmap_pte(vaddr)));
#endif
/*
* When debugging is off, kunmap_atomic leaves the previous mapping
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(idx);
#ifdef CONFIG_DEBUG_HIGHMEM
- BUG_ON(!pte_none(*(fixmap_page_table + idx)));
+ BUG_ON(!pte_none(get_fixmap_pte(vaddr)));
#endif
set_fixmap_pte(idx, pfn_pte(pfn, kmap_prot));