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Diffstat (limited to 'arch/arm/mm/mm-armv.c')
-rw-r--r--arch/arm/mm/mm-armv.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/arch/arm/mm/mm-armv.c b/arch/arm/mm/mm-armv.c
index 585dfb8e20b9..2a514b05cd5c 100644
--- a/arch/arm/mm/mm-armv.c
+++ b/arch/arm/mm/mm-armv.c
@@ -142,6 +142,16 @@ __setup("noalign", noalign_setup);
142 142
143#define FIRST_KERNEL_PGD_NR (FIRST_USER_PGD_NR + USER_PTRS_PER_PGD) 143#define FIRST_KERNEL_PGD_NR (FIRST_USER_PGD_NR + USER_PTRS_PER_PGD)
144 144
145static inline pmd_t *pmd_off(pgd_t *pgd, unsigned long virt)
146{
147 return pmd_offset(pgd, virt);
148}
149
150static inline pmd_t *pmd_off_k(unsigned long virt)
151{
152 return pmd_off(pgd_offset_k(virt), virt);
153}
154
145/* 155/*
146 * need to get a 16k page for level 1 156 * need to get a 16k page for level 1
147 */ 157 */
@@ -220,7 +230,7 @@ void free_pgd_slow(pgd_t *pgd)
220 return; 230 return;
221 231
222 /* pgd is always present and good */ 232 /* pgd is always present and good */
223 pmd = (pmd_t *)pgd; 233 pmd = pmd_off(pgd, 0);
224 if (pmd_none(*pmd)) 234 if (pmd_none(*pmd))
225 goto free; 235 goto free;
226 if (pmd_bad(*pmd)) { 236 if (pmd_bad(*pmd)) {
@@ -246,9 +256,8 @@ free:
246static inline void 256static inline void
247alloc_init_section(unsigned long virt, unsigned long phys, int prot) 257alloc_init_section(unsigned long virt, unsigned long phys, int prot)
248{ 258{
249 pmd_t *pmdp; 259 pmd_t *pmdp = pmd_off_k(virt);
250 260
251 pmdp = pmd_offset(pgd_offset_k(virt), virt);
252 if (virt & (1 << 20)) 261 if (virt & (1 << 20))
253 pmdp++; 262 pmdp++;
254 263
@@ -283,11 +292,9 @@ alloc_init_supersection(unsigned long virt, unsigned long phys, int prot)
283static inline void 292static inline void
284alloc_init_page(unsigned long virt, unsigned long phys, unsigned int prot_l1, pgprot_t prot) 293alloc_init_page(unsigned long virt, unsigned long phys, unsigned int prot_l1, pgprot_t prot)
285{ 294{
286 pmd_t *pmdp; 295 pmd_t *pmdp = pmd_off_k(virt);
287 pte_t *ptep; 296 pte_t *ptep;
288 297
289 pmdp = pmd_offset(pgd_offset_k(virt), virt);
290
291 if (pmd_none(*pmdp)) { 298 if (pmd_none(*pmdp)) {
292 unsigned long pmdval; 299 unsigned long pmdval;
293 ptep = alloc_bootmem_low_pages(2 * PTRS_PER_PTE * 300 ptep = alloc_bootmem_low_pages(2 * PTRS_PER_PTE *
@@ -310,7 +317,7 @@ alloc_init_page(unsigned long virt, unsigned long phys, unsigned int prot_l1, pg
310 */ 317 */
311static inline void clear_mapping(unsigned long virt) 318static inline void clear_mapping(unsigned long virt)
312{ 319{
313 pmd_clear(pmd_offset(pgd_offset_k(virt), virt)); 320 pmd_clear(pmd_off_k(virt));
314} 321}
315 322
316struct mem_types { 323struct mem_types {
@@ -578,7 +585,7 @@ void setup_mm_for_reboot(char mode)
578 PMD_TYPE_SECT; 585 PMD_TYPE_SECT;
579 if (cpu_arch <= CPU_ARCH_ARMv5) 586 if (cpu_arch <= CPU_ARCH_ARMv5)
580 pmdval |= PMD_BIT4; 587 pmdval |= PMD_BIT4;
581 pmd = pmd_offset(pgd + i, i << PGDIR_SHIFT); 588 pmd = pmd_off(pgd, i << PGDIR_SHIFT);
582 pmd[0] = __pmd(pmdval); 589 pmd[0] = __pmd(pmdval);
583 pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1))); 590 pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1)));
584 flush_pmd_entry(pmd); 591 flush_pmd_entry(pmd);