diff options
Diffstat (limited to 'arch/powerpc')
-rw-r--r-- | arch/powerpc/include/asm/machdep.h | 2 | ||||
-rw-r--r-- | arch/powerpc/include/asm/mmu-hash64.h | 22 | ||||
-rw-r--r-- | arch/powerpc/include/asm/tlbflush.h | 4 | ||||
-rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 2 | ||||
-rw-r--r-- | arch/powerpc/mm/hash_low_64.S | 15 | ||||
-rw-r--r-- | arch/powerpc/mm/hash_native_64.c | 15 | ||||
-rw-r--r-- | arch/powerpc/mm/hash_utils_64.c | 44 | ||||
-rw-r--r-- | arch/powerpc/mm/hugepage-hash64.c | 8 | ||||
-rw-r--r-- | arch/powerpc/mm/hugetlbpage-hash64.c | 6 | ||||
-rw-r--r-- | arch/powerpc/mm/pgtable_64.c | 7 | ||||
-rw-r--r-- | arch/powerpc/platforms/cell/beat_htab.c | 4 | ||||
-rw-r--r-- | arch/powerpc/platforms/cell/spu_base.c | 5 | ||||
-rw-r--r-- | arch/powerpc/platforms/cell/spufs/fault.c | 2 | ||||
-rw-r--r-- | arch/powerpc/platforms/ps3/htab.c | 2 | ||||
-rw-r--r-- | arch/powerpc/platforms/pseries/lpar.c | 2 |
15 files changed, 85 insertions, 55 deletions
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index e5c0919acca..c8175a3fe56 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -42,7 +42,7 @@ struct machdep_calls { unsigned long newpp, unsigned long vpn, int bpsize, int apsize, - int ssize, int local); + int ssize, unsigned long flags); void (*hpte_updateboltedpp)(unsigned long newpp, unsigned long ea, int psize, int ssize); diff --git a/arch/powerpc/include/asm/mmu-hash64.h b/arch/powerpc/include/asm/mmu-hash64.h index aeebc94b2bc..4f13c3ed7ac 100644 --- a/arch/powerpc/include/asm/mmu-hash64.h +++ b/arch/powerpc/include/asm/mmu-hash64.h @@ -316,27 +316,33 @@ static inline unsigned long hpt_hash(unsigned long vpn, return hash & 0x7fffffffffUL; } +#define HPTE_LOCAL_UPDATE 0x1 +#define HPTE_NOHPTE_UPDATE 0x2 + extern int __hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid, pte_t *ptep, unsigned long trap, - unsigned int local, int ssize, int subpage_prot); + unsigned long flags, int ssize, int subpage_prot); extern int __hash_page_64K(unsigned long ea, unsigned long access, unsigned long vsid, pte_t *ptep, unsigned long trap, - unsigned int local, int ssize); + unsigned long flags, int ssize); struct mm_struct; unsigned int hash_page_do_lazy_icache(unsigned int pp, pte_t pte, int trap); -extern int hash_page_mm(struct mm_struct *mm, unsigned long ea, unsigned long access, unsigned long trap); -extern int hash_page(unsigned long ea, unsigned long access, unsigned long trap); +extern int hash_page_mm(struct mm_struct *mm, unsigned long ea, + unsigned long access, unsigned long trap, + unsigned long flags); +extern int hash_page(unsigned long ea, unsigned long access, unsigned long trap, + unsigned long dsisr); int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid, - pte_t *ptep, unsigned long trap, int local, int ssize, - unsigned int shift, unsigned int mmu_psize); + pte_t *ptep, unsigned long trap, unsigned long flags, + int ssize, unsigned int shift, unsigned int mmu_psize); #ifdef CONFIG_TRANSPARENT_HUGEPAGE extern int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid, pmd_t *pmdp, unsigned long trap, - int local, int ssize, unsigned int psize); + unsigned long flags, int ssize, unsigned int psize); #else static inline int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid, pmd_t *pmdp, - unsigned long trap, int local, + unsigned long trap, unsigned long flags, int ssize, unsigned int psize) { BUG(); diff --git a/arch/powerpc/include/asm/tlbflush.h b/arch/powerpc/include/asm/tlbflush.h index 4d3ecd8d892..23d351ca030 100644 --- a/arch/powerpc/include/asm/tlbflush.h +++ b/arch/powerpc/include/asm/tlbflush.h @@ -125,11 +125,11 @@ static inline void arch_leave_lazy_mmu_mode(void) extern void flush_hash_page(unsigned long vpn, real_pte_t pte, int psize, - int ssize, int local); + int ssize, unsigned long flags); extern void flush_hash_range(unsigned long number, int local); extern void flush_hash_hugepage(unsigned long vsid, unsigned long addr, pmd_t *pmdp, unsigned int psize, int ssize, - int local); + unsigned long flags); static inline void local_flush_tlb_mm(struct mm_struct *mm) { diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index ad62f4d6ce3..6213f494f40 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -1565,9 +1565,11 @@ do_hash_page: * r3 contains the faulting address * r4 contains the required access permissions * r5 contains the trap number + * r6 contains dsisr * * at return r3 = 0 for success, 1 for page fault, negative for error */ + ld r6,_DSISR(r1) bl hash_page /* build HPTE if possible */ cmpdi r3,0 /* see if hash_page succeeded */ diff --git a/arch/powerpc/mm/hash_low_64.S b/arch/powerpc/mm/hash_low_64.S index 5094f32b706..463174a4a64 100644 --- a/arch/powerpc/mm/hash_low_64.S +++ b/arch/powerpc/mm/hash_low_64.S @@ -46,7 +46,8 @@ /* * _hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid, - * pte_t *ptep, unsigned long trap, int local, int ssize) + * pte_t *ptep, unsigned long trap, unsigned long flags, + * int ssize) * * Adds a 4K page to the hash table in a segment of 4K pages only */ @@ -298,7 +299,7 @@ htab_modify_pte: li r6,MMU_PAGE_4K /* base page size */ li r7,MMU_PAGE_4K /* actual page size */ ld r8,STK_PARAM(R9)(r1) /* segment size */ - ld r9,STK_PARAM(R8)(r1) /* get "local" param */ + ld r9,STK_PARAM(R8)(r1) /* get "flags" param */ .globl htab_call_hpte_updatepp htab_call_hpte_updatepp: bl . /* Patched by htab_finish_init() */ @@ -338,8 +339,8 @@ htab_pte_insert_failure: *****************************************************************************/ /* _hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid, - * pte_t *ptep, unsigned long trap, int local, int ssize, - * int subpg_prot) + * pte_t *ptep, unsigned long trap, unsigned local flags, + * int ssize, int subpg_prot) */ /* @@ -594,7 +595,7 @@ htab_inval_old_hpte: li r5,0 /* PTE.hidx */ li r6,MMU_PAGE_64K /* psize */ ld r7,STK_PARAM(R9)(r1) /* ssize */ - ld r8,STK_PARAM(R8)(r1) /* local */ + ld r8,STK_PARAM(R8)(r1) /* flags */ bl flush_hash_page /* Clear out _PAGE_HPTE_SUB bits in the new linux PTE */ lis r0,_PAGE_HPTE_SUB@h @@ -666,7 +667,7 @@ htab_modify_pte: li r6,MMU_PAGE_4K /* base page size */ li r7,MMU_PAGE_4K /* actual page size */ ld r8,STK_PARAM(R9)(r1) /* segment size */ - ld r9,STK_PARAM(R8)(r1) /* get "local" param */ + ld r9,STK_PARAM(R8)(r1) /* get "flags" param */ .globl htab_call_hpte_updatepp htab_call_hpte_updatepp: bl . /* patched by htab_finish_init() */ @@ -962,7 +963,7 @@ ht64_modify_pte: li r6,MMU_PAGE_64K /* base page size */ li r7,MMU_PAGE_64K /* actual page size */ ld r8,STK_PARAM(R9)(r1) /* segment size */ - ld r9,STK_PARAM(R8)(r1) /* get "local" param */ + ld r9,STK_PARAM(R8)(r1) /* get "flags" param */ .globl ht64_call_hpte_updatepp ht64_call_hpte_updatepp: bl . /* patched by htab_finish_init() */ diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c index 13700911b52..9c4880ddecd 100644 --- a/arch/powerpc/mm/hash_native_64.c +++ b/arch/powerpc/mm/hash_native_64.c @@ -283,11 +283,11 @@ static long native_hpte_remove(unsigned long hpte_group) static long native_hpte_updatepp(unsigned long slot, unsigned long newpp, unsigned long vpn, int bpsize, - int apsize, int ssize, int local) + int apsize, int ssize, unsigned long flags) { struct hash_pte *hptep = htab_address + slot; unsigned long hpte_v, want_v; - int ret = 0; + int ret = 0, local = 0; want_v = hpte_encode_avpn(vpn, bpsize, ssize); @@ -322,8 +322,15 @@ static long native_hpte_updatepp(unsigned long slot, unsigned long newpp, } native_unlock_hpte(hptep); } - /* Ensure it is out of the tlb too. */ - tlbie(vpn, bpsize, apsize, ssize, local); + + if (flags & HPTE_LOCAL_UPDATE) + local = 1; + /* + * Ensure it is out of the tlb too if it is not a nohpte fault + */ + if (!(flags & HPTE_NOHPTE_UPDATE)) + tlbie(vpn, bpsize, apsize, ssize, local); + return ret; } diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 68211d398fd..e56a307bc67 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -989,7 +989,9 @@ static void check_paca_psize(unsigned long ea, struct mm_struct *mm, * -1 - critical hash insertion error * -2 - access not permitted by subpage protection mechanism */ -int hash_page_mm(struct mm_struct *mm, unsigned long ea, unsigned long access, unsigned long trap) +int hash_page_mm(struct mm_struct *mm, unsigned long ea, + unsigned long access, unsigned long trap, + unsigned long flags) { enum ctx_state prev_state = exception_enter(); pgd_t *pgdir; @@ -997,7 +999,7 @@ int hash_page_mm(struct mm_struct *mm, unsigned long ea, unsigned long access, u pte_t *ptep; unsigned hugeshift; const struct cpumask *tmp; - int rc, user_region = 0, local = 0; + int rc, user_region = 0; int psize, ssize; DBG_LOW("hash_page(ea=%016lx, access=%lx, trap=%lx\n", @@ -1049,7 +1051,7 @@ int hash_page_mm(struct mm_struct *mm, unsigned long ea, unsigned long access, u /* Check CPU locality */ tmp = cpumask_of(smp_processor_id()); if (user_region && cpumask_equal(mm_cpumask(mm), tmp)) - local = 1; + flags |= HPTE_LOCAL_UPDATE; #ifndef CONFIG_PPC_64K_PAGES /* If we use 4K pages and our psize is not 4K, then we might @@ -1086,11 +1088,11 @@ int hash_page_mm(struct mm_struct *mm, unsigned long ea, unsigned long access, u if (hugeshift) { if (pmd_trans_huge(*(pmd_t *)ptep)) rc = __hash_page_thp(ea, access, vsid, (pmd_t *)ptep, - trap, local, ssize, psize); + trap, flags, ssize, psize); #ifdef CONFIG_HUGETLB_PAGE else rc = __hash_page_huge(ea, access, vsid, ptep, trap, - local, ssize, hugeshift, psize); + flags, ssize, hugeshift, psize); #else else { /* @@ -1149,7 +1151,8 @@ int hash_page_mm(struct mm_struct *mm, unsigned long ea, unsigned long access, u #ifdef CONFIG_PPC_HAS_HASH_64K if (psize == MMU_PAGE_64K) - rc = __hash_page_64K(ea, access, vsid, ptep, trap, local, ssize); + rc = __hash_page_64K(ea, access, vsid, ptep, trap, + flags, ssize); else #endif /* CONFIG_PPC_HAS_HASH_64K */ { @@ -1158,7 +1161,7 @@ int hash_page_mm(struct mm_struct *mm, unsigned long ea, unsigned long access, u rc = -2; else rc = __hash_page_4K(ea, access, vsid, ptep, trap, - local, ssize, spp); + flags, ssize, spp); } /* Dump some info in case of hash insertion failure, they should @@ -1181,14 +1184,19 @@ bail: } EXPORT_SYMBOL_GPL(hash_page_mm); -int hash_page(unsigned long ea, unsigned long access, unsigned long trap) +int hash_page(unsigned long ea, unsigned long access, unsigned long trap, + unsigned long dsisr) { + unsigned long flags = 0; struct mm_struct *mm = current->mm; if (REGION_ID(ea) == VMALLOC_REGION_ID) mm = &init_mm; - return hash_page_mm(mm, ea, access, trap); + if (dsisr & DSISR_NOHPTE) + flags |= HPTE_NOHPTE_UPDATE; + + return hash_page_mm(mm, ea, access, trap, flags); } EXPORT_SYMBOL_GPL(hash_page); @@ -1200,7 +1208,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea, pgd_t *pgdir; pte_t *ptep; unsigned long flags; - int rc, ssize, local = 0; + int rc, ssize, update_flags = 0; BUG_ON(REGION_ID(ea) != USER_REGION_ID); @@ -1251,16 +1259,17 @@ void hash_preload(struct mm_struct *mm, unsigned long ea, /* Is that local to this CPU ? */ if (cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id()))) - local = 1; + update_flags |= HPTE_LOCAL_UPDATE; /* Hash it in */ #ifdef CONFIG_PPC_HAS_HASH_64K if (mm->context.user_psize == MMU_PAGE_64K) - rc = __hash_page_64K(ea, access, vsid, ptep, trap, local, ssize); + rc = __hash_page_64K(ea, access, vsid, ptep, trap, + update_flags, ssize); else #endif /* CONFIG_PPC_HAS_HASH_64K */ - rc = __hash_page_4K(ea, access, vsid, ptep, trap, local, ssize, - subpage_protection(mm, ea)); + rc = __hash_page_4K(ea, access, vsid, ptep, trap, update_flags, + ssize, subpage_protection(mm, ea)); /* Dump some info in case of hash insertion failure, they should * never happen so it is really useful to know if/when they do @@ -1278,9 +1287,10 @@ out_exit: * do not forget to update the assembly call site ! */ void flush_hash_page(unsigned long vpn, real_pte_t pte, int psize, int ssize, - int local) + unsigned long flags) { unsigned long hash, index, shift, hidx, slot; + int local = flags & HPTE_LOCAL_UPDATE; DBG_LOW("flush_hash_page(vpn=%016lx)\n", vpn); pte_iterate_hashed_subpages(pte, psize, vpn, index, shift) { @@ -1317,12 +1327,14 @@ void flush_hash_page(unsigned long vpn, real_pte_t pte, int psize, int ssize, #ifdef CONFIG_TRANSPARENT_HUGEPAGE void flush_hash_hugepage(unsigned long vsid, unsigned long addr, - pmd_t *pmdp, unsigned int psize, int ssize, int local) + pmd_t *pmdp, unsigned int psize, int ssize, + unsigned long flags) { int i, max_hpte_count, valid; unsigned long s_addr; unsigned char *hpte_slot_array; unsigned long hidx, shift, vpn, hash, slot; + int local = flags & HPTE_LOCAL_UPDATE; s_addr = addr & HPAGE_PMD_MASK; hpte_slot_array = get_hpte_slot_array(pmdp); diff --git a/arch/powerpc/mm/hugepage-hash64.c b/arch/powerpc/mm/hugepage-hash64.c index 3a648cd363a..86686514ae1 100644 --- a/arch/powerpc/mm/hugepage-hash64.c +++ b/arch/powerpc/mm/hugepage-hash64.c @@ -19,8 +19,8 @@ #include <asm/machdep.h> int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid, - pmd_t *pmdp, unsigned long trap, int local, int ssize, - unsigned int psize) + pmd_t *pmdp, unsigned long trap, unsigned long flags, + int ssize, unsigned int psize) { unsigned int index, valid; unsigned char *hpte_slot_array; @@ -95,7 +95,7 @@ int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid, */ if ((old_pmd & _PAGE_HASHPTE) && !(old_pmd & _PAGE_COMBO)) flush_hash_hugepage(vsid, ea, pmdp, MMU_PAGE_64K, - ssize, local); + ssize, flags); } valid = hpte_valid(hpte_slot_array, index); @@ -108,7 +108,7 @@ int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid, slot += hidx & _PTEIDX_GROUP_IX; ret = ppc_md.hpte_updatepp(slot, rflags, vpn, - psize, lpsize, ssize, local); + psize, lpsize, ssize, flags); /* * We failed to update, try to insert a new entry. */ diff --git a/arch/powerpc/mm/hugetlbpage-hash64.c b/arch/powerpc/mm/hugetlbpage-hash64.c index a5bcf930119..d94b1af53a9 100644 --- a/arch/powerpc/mm/hugetlbpage-hash64.c +++ b/arch/powerpc/mm/hugetlbpage-hash64.c @@ -19,8 +19,8 @@ extern long hpte_insert_repeating(unsigned long hash, unsigned long vpn, unsigned long vflags, int psize, int ssize); int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid, - pte_t *ptep, unsigned long trap, int local, int ssize, - unsigned int shift, unsigned int mmu_psize) + pte_t *ptep, unsigned long trap, unsigned long flags, + int ssize, unsigned int shift, unsigned int mmu_psize) { unsigned long vpn; unsigned long old_pte, new_pte; @@ -81,7 +81,7 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid, slot += (old_pte & _PAGE_F_GIX) >> 12; if (ppc_md.hpte_updatepp(slot, rflags, vpn, mmu_psize, - mmu_psize, ssize, local) == -1) + mmu_psize, ssize, flags) == -1) old_pte &= ~_PAGE_HPTEFLAGS; } diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index eea9fa1f8ae..4fe5f64cc17 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -739,9 +739,10 @@ void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address, void hpte_do_hugepage_flush(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp, unsigned long old_pmd) { - int ssize, local = 0; + int ssize; unsigned int psize; unsigned long vsid; + unsigned long flags = 0; const struct cpumask *tmp; /* get the base page size,vsid and segment size */ @@ -765,9 +766,9 @@ void hpte_do_hugepage_flush(struct mm_struct *mm, unsigned long addr, tmp = cpumask_of(smp_processor_id()); if (cpumask_equal(mm_cpumask(mm), tmp)) - local = 1; + flags |= HPTE_LOCAL_UPDATE; - return flush_hash_hugepage(vsid, addr, pmdp, psize, ssize, local); + return flush_hash_hugepage(vsid, addr, pmdp, psize, ssize, flags); } static pmd_t pmd_set_protbits(pmd_t pmd, pgprot_t pgprot) diff --git a/arch/powerpc/platforms/cell/beat_htab.c b/arch/powerpc/platforms/cell/beat_htab.c index d4d245c0d78..bee9232fe61 100644 --- a/arch/powerpc/platforms/cell/beat_htab.c +++ b/arch/powerpc/platforms/cell/beat_htab.c @@ -186,7 +186,7 @@ static long beat_lpar_hpte_updatepp(unsigned long slot, unsigned long newpp, unsigned long vpn, int psize, int apsize, - int ssize, int local) + int ssize, unsigned long flags) { unsigned long lpar_rc; u64 dummy0, dummy1; @@ -369,7 +369,7 @@ static long beat_lpar_hpte_updatepp_v3(unsigned long slot, unsigned long newpp, unsigned long vpn, int psize, int apsize, - int ssize, int local) + int ssize, unsigned long flags) { unsigned long lpar_rc; unsigned long want_v; diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index ffcbd242e66..f7af74f8369 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -181,7 +181,8 @@ static int __spu_trap_data_seg(struct spu *spu, unsigned long ea) return 0; } -extern int hash_page(unsigned long ea, unsigned long access, unsigned long trap); //XXX +extern int hash_page(unsigned long ea, unsigned long access, + unsigned long trap, unsigned long dsisr); //XXX static int __spu_trap_data_map(struct spu *spu, unsigned long ea, u64 dsisr) { int ret; @@ -196,7 +197,7 @@ static int __spu_trap_data_map(struct spu *spu, unsigned long ea, u64 dsisr) (REGION_ID(ea) != USER_REGION_ID)) { spin_unlock(&spu->register_lock); - ret = hash_page(ea, _PAGE_PRESENT, 0x300); + ret = hash_page(ea, _PAGE_PRESENT, 0x300, dsisr); spin_lock(&spu->register_lock); if (!ret) { diff --git a/arch/powerpc/platforms/cell/spufs/fault.c b/arch/powerpc/platforms/cell/spufs/fault.c index e45894a0811..d98f845ac77 100644 --- a/arch/powerpc/platforms/cell/spufs/fault.c +++ b/arch/powerpc/platforms/cell/spufs/fault.c @@ -144,7 +144,7 @@ int spufs_handle_class1(struct spu_context *ctx) access = (_PAGE_PRESENT | _PAGE_USER); access |= (dsisr & MFC_DSISR_ACCESS_PUT) ? _PAGE_RW : 0UL; local_irq_save(flags); - ret = hash_page(ea, access, 0x300); + ret = hash_page(ea, access, 0x300, dsisr); local_irq_restore(flags); /* hashing failed, so try the actual fault handler */ diff --git a/arch/powerpc/platforms/ps3/htab.c b/arch/powerpc/platforms/ps3/htab.c index 3e270e3412a..2f95d33cf34 100644 --- a/arch/powerpc/platforms/ps3/htab.c +++ b/arch/powerpc/platforms/ps3/htab.c @@ -110,7 +110,7 @@ static long ps3_hpte_remove(unsigned long hpte_group) static long ps3_hpte_updatepp(unsigned long slot, unsigned long newpp, unsigned long vpn, int psize, int apsize, - int ssize, int local) + int ssize, unsigned long inv_flags) { int result; u64 hpte_v, want_v, hpte_rs; diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 832f221840f..469751d9200 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -284,7 +284,7 @@ static long pSeries_lpar_hpte_updatepp(unsigned long slot, unsigned long newpp, unsigned long vpn, int psize, int apsize, - int ssize, int local) + int ssize, unsigned long inv_flags) { unsigned long lpar_rc; unsigned long flags = (newpp & 7) | H_AVPN; |