diff options
author | Sam Ravnborg <sam@ravnborg.org> | 2012-05-13 04:21:25 -0400 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2012-05-13 15:51:53 -0400 |
commit | 9701b264d3267b55ace45bc579eabefc7decfa57 (patch) | |
tree | 399be67cba77e5da48b3fe9e3fdaa3927df044c7 /arch/sparc/mm | |
parent | 642ea3ed9c652bb9e105e55afcb9ad15b040f71f (diff) |
sparc32: drop btfixup in pgtable_32.h
Only one function left using btfixup.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/mm')
-rw-r--r-- | arch/sparc/mm/srmmu.c | 77 |
1 files changed, 17 insertions, 60 deletions
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index d9487d851843..32cec268c2c1 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c | |||
@@ -109,10 +109,6 @@ void *srmmu_nocache_pool; | |||
109 | void *srmmu_nocache_bitmap; | 109 | void *srmmu_nocache_bitmap; |
110 | static struct bit_map srmmu_nocache_map; | 110 | static struct bit_map srmmu_nocache_map; |
111 | 111 | ||
112 | static inline unsigned long srmmu_pgd_page(pgd_t pgd) | ||
113 | { return srmmu_device_memory(pgd_val(pgd))?~0:(unsigned long)__nocache_va((pgd_val(pgd) & SRMMU_PTD_PMASK) << 4); } | ||
114 | |||
115 | |||
116 | static inline int srmmu_pte_none(pte_t pte) | 112 | static inline int srmmu_pte_none(pte_t pte) |
117 | { return !(pte_val(pte) & 0xFFFFFFF); } | 113 | { return !(pte_val(pte) & 0xFFFFFFF); } |
118 | 114 | ||
@@ -163,15 +159,8 @@ static inline pte_t srmmu_pte_modify(pte_t pte, pgprot_t newprot) | |||
163 | static inline pgd_t *srmmu_pgd_offset(struct mm_struct * mm, unsigned long address) | 159 | static inline pgd_t *srmmu_pgd_offset(struct mm_struct * mm, unsigned long address) |
164 | { return mm->pgd + (address >> SRMMU_PGDIR_SHIFT); } | 160 | { return mm->pgd + (address >> SRMMU_PGDIR_SHIFT); } |
165 | 161 | ||
166 | /* Find an entry in the second-level page table.. */ | ||
167 | static inline pmd_t *srmmu_pmd_offset(pgd_t * dir, unsigned long address) | ||
168 | { | ||
169 | return (pmd_t *) srmmu_pgd_page(*dir) + | ||
170 | ((address >> PMD_SHIFT) & (PTRS_PER_PMD - 1)); | ||
171 | } | ||
172 | |||
173 | /* Find an entry in the third-level page table.. */ | 162 | /* Find an entry in the third-level page table.. */ |
174 | static inline pte_t *srmmu_pte_offset(pmd_t * dir, unsigned long address) | 163 | pte_t *pte_offset_kernel(pmd_t * dir, unsigned long address) |
175 | { | 164 | { |
176 | void *pte; | 165 | void *pte; |
177 | 166 | ||
@@ -180,23 +169,6 @@ static inline pte_t *srmmu_pte_offset(pmd_t * dir, unsigned long address) | |||
180 | ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)); | 169 | ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)); |
181 | } | 170 | } |
182 | 171 | ||
183 | static unsigned long srmmu_swp_type(swp_entry_t entry) | ||
184 | { | ||
185 | return (entry.val >> SRMMU_SWP_TYPE_SHIFT) & SRMMU_SWP_TYPE_MASK; | ||
186 | } | ||
187 | |||
188 | static unsigned long srmmu_swp_offset(swp_entry_t entry) | ||
189 | { | ||
190 | return (entry.val >> SRMMU_SWP_OFF_SHIFT) & SRMMU_SWP_OFF_MASK; | ||
191 | } | ||
192 | |||
193 | static swp_entry_t srmmu_swp_entry(unsigned long type, unsigned long offset) | ||
194 | { | ||
195 | return (swp_entry_t) { | ||
196 | (type & SRMMU_SWP_TYPE_MASK) << SRMMU_SWP_TYPE_SHIFT | ||
197 | | (offset & SRMMU_SWP_OFF_MASK) << SRMMU_SWP_OFF_SHIFT }; | ||
198 | } | ||
199 | |||
200 | /* | 172 | /* |
201 | * size: bytes to allocate in the nocache area. | 173 | * size: bytes to allocate in the nocache area. |
202 | * align: bytes, number to align at. | 174 | * align: bytes, number to align at. |
@@ -333,8 +305,8 @@ static void __init srmmu_nocache_init(void) | |||
333 | 305 | ||
334 | while (vaddr < srmmu_nocache_end) { | 306 | while (vaddr < srmmu_nocache_end) { |
335 | pgd = pgd_offset_k(vaddr); | 307 | pgd = pgd_offset_k(vaddr); |
336 | pmd = srmmu_pmd_offset(__nocache_fix(pgd), vaddr); | 308 | pmd = pmd_offset(__nocache_fix(pgd), vaddr); |
337 | pte = srmmu_pte_offset(__nocache_fix(pmd), vaddr); | 309 | pte = pte_offset_kernel(__nocache_fix(pmd), vaddr); |
338 | 310 | ||
339 | pteval = ((paddr >> 4) | SRMMU_ET_PTE | SRMMU_PRIV); | 311 | pteval = ((paddr >> 4) | SRMMU_ET_PTE | SRMMU_PRIV); |
340 | 312 | ||
@@ -467,8 +439,8 @@ static inline void srmmu_mapioaddr(unsigned long physaddr, | |||
467 | 439 | ||
468 | physaddr &= PAGE_MASK; | 440 | physaddr &= PAGE_MASK; |
469 | pgdp = pgd_offset_k(virt_addr); | 441 | pgdp = pgd_offset_k(virt_addr); |
470 | pmdp = srmmu_pmd_offset(pgdp, virt_addr); | 442 | pmdp = pmd_offset(pgdp, virt_addr); |
471 | ptep = srmmu_pte_offset(pmdp, virt_addr); | 443 | ptep = pte_offset_kernel(pmdp, virt_addr); |
472 | tmp = (physaddr >> 4) | SRMMU_ET_PTE; | 444 | tmp = (physaddr >> 4) | SRMMU_ET_PTE; |
473 | 445 | ||
474 | /* | 446 | /* |
@@ -482,8 +454,8 @@ static inline void srmmu_mapioaddr(unsigned long physaddr, | |||
482 | set_pte(ptep, __pte(tmp)); | 454 | set_pte(ptep, __pte(tmp)); |
483 | } | 455 | } |
484 | 456 | ||
485 | static void srmmu_mapiorange(unsigned int bus, unsigned long xpa, | 457 | void srmmu_mapiorange(unsigned int bus, unsigned long xpa, |
486 | unsigned long xva, unsigned int len) | 458 | unsigned long xva, unsigned int len) |
487 | { | 459 | { |
488 | while (len != 0) { | 460 | while (len != 0) { |
489 | len -= PAGE_SIZE; | 461 | len -= PAGE_SIZE; |
@@ -501,14 +473,14 @@ static inline void srmmu_unmapioaddr(unsigned long virt_addr) | |||
501 | pte_t *ptep; | 473 | pte_t *ptep; |
502 | 474 | ||
503 | pgdp = pgd_offset_k(virt_addr); | 475 | pgdp = pgd_offset_k(virt_addr); |
504 | pmdp = srmmu_pmd_offset(pgdp, virt_addr); | 476 | pmdp = pmd_offset(pgdp, virt_addr); |
505 | ptep = srmmu_pte_offset(pmdp, virt_addr); | 477 | ptep = pte_offset_kernel(pmdp, virt_addr); |
506 | 478 | ||
507 | /* No need to flush uncacheable page. */ | 479 | /* No need to flush uncacheable page. */ |
508 | __pte_clear(ptep); | 480 | __pte_clear(ptep); |
509 | } | 481 | } |
510 | 482 | ||
511 | static void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len) | 483 | void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len) |
512 | { | 484 | { |
513 | while (len != 0) { | 485 | while (len != 0) { |
514 | len -= PAGE_SIZE; | 486 | len -= PAGE_SIZE; |
@@ -949,7 +921,7 @@ static void __init srmmu_early_allocate_ptable_skeleton(unsigned long start, | |||
949 | memset(__nocache_fix(pmdp), 0, SRMMU_PMD_TABLE_SIZE); | 921 | memset(__nocache_fix(pmdp), 0, SRMMU_PMD_TABLE_SIZE); |
950 | pgd_set(__nocache_fix(pgdp), pmdp); | 922 | pgd_set(__nocache_fix(pgdp), pmdp); |
951 | } | 923 | } |
952 | pmdp = srmmu_pmd_offset(__nocache_fix(pgdp), start); | 924 | pmdp = pmd_offset(__nocache_fix(pgdp), start); |
953 | if(srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) { | 925 | if(srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) { |
954 | ptep = (pte_t *)__srmmu_get_nocache(PTE_SIZE, PTE_SIZE); | 926 | ptep = (pte_t *)__srmmu_get_nocache(PTE_SIZE, PTE_SIZE); |
955 | if (ptep == NULL) | 927 | if (ptep == NULL) |
@@ -979,7 +951,7 @@ static void __init srmmu_allocate_ptable_skeleton(unsigned long start, | |||
979 | memset(pmdp, 0, SRMMU_PMD_TABLE_SIZE); | 951 | memset(pmdp, 0, SRMMU_PMD_TABLE_SIZE); |
980 | pgd_set(pgdp, pmdp); | 952 | pgd_set(pgdp, pmdp); |
981 | } | 953 | } |
982 | pmdp = srmmu_pmd_offset(pgdp, start); | 954 | pmdp = pmd_offset(pgdp, start); |
983 | if(srmmu_pmd_none(*pmdp)) { | 955 | if(srmmu_pmd_none(*pmdp)) { |
984 | ptep = (pte_t *) __srmmu_get_nocache(PTE_SIZE, | 956 | ptep = (pte_t *) __srmmu_get_nocache(PTE_SIZE, |
985 | PTE_SIZE); | 957 | PTE_SIZE); |
@@ -1045,7 +1017,7 @@ static void __init srmmu_inherit_prom_mappings(unsigned long start, | |||
1045 | memset(__nocache_fix(pmdp), 0, SRMMU_PMD_TABLE_SIZE); | 1017 | memset(__nocache_fix(pmdp), 0, SRMMU_PMD_TABLE_SIZE); |
1046 | pgd_set(__nocache_fix(pgdp), pmdp); | 1018 | pgd_set(__nocache_fix(pgdp), pmdp); |
1047 | } | 1019 | } |
1048 | pmdp = srmmu_pmd_offset(__nocache_fix(pgdp), start); | 1020 | pmdp = pmd_offset(__nocache_fix(pgdp), start); |
1049 | if(srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) { | 1021 | if(srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) { |
1050 | ptep = (pte_t *) __srmmu_get_nocache(PTE_SIZE, | 1022 | ptep = (pte_t *) __srmmu_get_nocache(PTE_SIZE, |
1051 | PTE_SIZE); | 1023 | PTE_SIZE); |
@@ -1066,7 +1038,7 @@ static void __init srmmu_inherit_prom_mappings(unsigned long start, | |||
1066 | start += SRMMU_REAL_PMD_SIZE; | 1038 | start += SRMMU_REAL_PMD_SIZE; |
1067 | continue; | 1039 | continue; |
1068 | } | 1040 | } |
1069 | ptep = srmmu_pte_offset(__nocache_fix(pmdp), start); | 1041 | ptep = pte_offset_kernel(__nocache_fix(pmdp), start); |
1070 | *(pte_t *)__nocache_fix(ptep) = __pte(prompte); | 1042 | *(pte_t *)__nocache_fix(ptep) = __pte(prompte); |
1071 | start += PAGE_SIZE; | 1043 | start += PAGE_SIZE; |
1072 | } | 1044 | } |
@@ -1200,8 +1172,8 @@ void __init srmmu_paging_init(void) | |||
1200 | srmmu_allocate_ptable_skeleton(PKMAP_BASE, PKMAP_END); | 1172 | srmmu_allocate_ptable_skeleton(PKMAP_BASE, PKMAP_END); |
1201 | 1173 | ||
1202 | pgd = pgd_offset_k(PKMAP_BASE); | 1174 | pgd = pgd_offset_k(PKMAP_BASE); |
1203 | pmd = srmmu_pmd_offset(pgd, PKMAP_BASE); | 1175 | pmd = pmd_offset(pgd, PKMAP_BASE); |
1204 | pte = srmmu_pte_offset(pmd, PKMAP_BASE); | 1176 | pte = pte_offset_kernel(pmd, PKMAP_BASE); |
1205 | pkmap_page_table = pte; | 1177 | pkmap_page_table = pte; |
1206 | 1178 | ||
1207 | flush_cache_all(); | 1179 | flush_cache_all(); |
@@ -1233,7 +1205,7 @@ void __init srmmu_paging_init(void) | |||
1233 | } | 1205 | } |
1234 | } | 1206 | } |
1235 | 1207 | ||
1236 | static void srmmu_mmu_info(struct seq_file *m) | 1208 | void mmu_info(struct seq_file *m) |
1237 | { | 1209 | { |
1238 | seq_printf(m, | 1210 | seq_printf(m, |
1239 | "MMU type\t: %s\n" | 1211 | "MMU type\t: %s\n" |
@@ -2015,24 +1987,9 @@ void __init load_mmu(void) | |||
2015 | BTFIXUPSET_CALL(___xchg32, ___xchg32_sun4md, BTFIXUPCALL_SWAPG1G2); | 1987 | BTFIXUPSET_CALL(___xchg32, ___xchg32_sun4md, BTFIXUPCALL_SWAPG1G2); |
2016 | #endif | 1988 | #endif |
2017 | 1989 | ||
2018 | BTFIXUPSET_CALL(pgd_page_vaddr, srmmu_pgd_page, BTFIXUPCALL_NORM); | ||
2019 | |||
2020 | BTFIXUPSET_INT(pte_modify_mask, SRMMU_CHG_MASK); | ||
2021 | BTFIXUPSET_CALL(pmd_offset, srmmu_pmd_offset, BTFIXUPCALL_NORM); | ||
2022 | BTFIXUPSET_CALL(pte_offset_kernel, srmmu_pte_offset, BTFIXUPCALL_NORM); | ||
2023 | |||
2024 | BTFIXUPSET_CALL(update_mmu_cache, srmmu_update_mmu_cache, BTFIXUPCALL_NOP); | 1990 | BTFIXUPSET_CALL(update_mmu_cache, srmmu_update_mmu_cache, BTFIXUPCALL_NOP); |
2025 | BTFIXUPSET_CALL(destroy_context, srmmu_destroy_context, BTFIXUPCALL_NORM); | 1991 | BTFIXUPSET_CALL(destroy_context, srmmu_destroy_context, BTFIXUPCALL_NORM); |
2026 | 1992 | ||
2027 | BTFIXUPSET_CALL(sparc_mapiorange, srmmu_mapiorange, BTFIXUPCALL_NORM); | ||
2028 | BTFIXUPSET_CALL(sparc_unmapiorange, srmmu_unmapiorange, BTFIXUPCALL_NORM); | ||
2029 | |||
2030 | BTFIXUPSET_CALL(__swp_type, srmmu_swp_type, BTFIXUPCALL_NORM); | ||
2031 | BTFIXUPSET_CALL(__swp_offset, srmmu_swp_offset, BTFIXUPCALL_NORM); | ||
2032 | BTFIXUPSET_CALL(__swp_entry, srmmu_swp_entry, BTFIXUPCALL_NORM); | ||
2033 | |||
2034 | BTFIXUPSET_CALL(mmu_info, srmmu_mmu_info, BTFIXUPCALL_NORM); | ||
2035 | |||
2036 | get_srmmu_type(); | 1993 | get_srmmu_type(); |
2037 | 1994 | ||
2038 | #ifdef CONFIG_SMP | 1995 | #ifdef CONFIG_SMP |