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authorPaul Mackerras <paulus@samba.org>2005-11-07 14:42:09 +1100
committerPaul Mackerras <paulus@samba.org>2005-11-07 14:42:09 +1100
commitc6135234550ed89a6fd0e8cb229633967e41d649 (patch)
tree22cef33e314839c4fb30d6fc888c0caa2a0f6602 /arch/powerpc/mm/pgtable_64.c
parent76032de898f34db55b5048349db56557828a1390 (diff)
parent0b154bb7d0cce80e9c0bcf11d4f9e71b59409d26 (diff)
downloadlinux-c6135234550ed89a6fd0e8cb229633967e41d649.tar.bz2
Merge ../linux-2.6
Diffstat (limited to 'arch/powerpc/mm/pgtable_64.c')
-rw-r--r--arch/powerpc/mm/pgtable_64.c22
1 files changed, 4 insertions, 18 deletions
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index d1fbd3fe684f..900842451bd3 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -100,7 +100,6 @@ static int map_io_page(unsigned long ea, unsigned long pa, int flags)
pud_t *pudp;
pmd_t *pmdp;
pte_t *ptep;
- unsigned long vsid;
if (mem_init_done) {
pgdp = pgd_offset_k(ea);
@@ -116,28 +115,15 @@ static int map_io_page(unsigned long ea, unsigned long pa, int flags)
set_pte_at(&init_mm, ea, ptep, pfn_pte(pa >> PAGE_SHIFT,
__pgprot(flags)));
} else {
- unsigned long va, vpn, hash, hpteg;
-
/*
* If the mm subsystem is not fully up, we cannot create a
* linux page table entry for this mapping. Simply bolt an
* entry in the hardware page table.
+ *
*/
- vsid = get_kernel_vsid(ea);
- va = (vsid << 28) | (ea & 0xFFFFFFF);
- vpn = va >> PAGE_SHIFT;
-
- hash = hpt_hash(vpn, 0);
-
- hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP);
-
- /* Panic if a pte grpup is full */
- if (ppc_md.hpte_insert(hpteg, va, pa >> PAGE_SHIFT,
- HPTE_V_BOLTED,
- _PAGE_NO_CACHE|_PAGE_GUARDED|PP_RWXX)
- == -1) {
- panic("map_io_page: could not insert mapping");
- }
+ if (htab_bolt_mapping(ea, ea + PAGE_SIZE, pa, flags,
+ mmu_virtual_psize))
+ panic("Can't map bolted IO mapping");
}
return 0;
}