diff options
Diffstat (limited to 'arch/ia64/mm/tlb.c')
| -rw-r--r-- | arch/ia64/mm/tlb.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c index ee09d261f2e..f3de9d7a98b 100644 --- a/arch/ia64/mm/tlb.c +++ b/arch/ia64/mm/tlb.c @@ -48,7 +48,7 @@ DEFINE_PER_CPU(u8, ia64_need_tlb_flush); DEFINE_PER_CPU(u8, ia64_tr_num); /*Number of TR slots in current processor*/ DEFINE_PER_CPU(u8, ia64_tr_used); /*Max Slot number used by kernel*/ -struct ia64_tr_entry __per_cpu_idtrs[NR_CPUS][2][IA64_TR_ALLOC_MAX]; +struct ia64_tr_entry *ia64_idtrs[NR_CPUS]; /* * Initializes the ia64_ctx.bitmap array based on max_ctx+1. @@ -429,10 +429,16 @@ int ia64_itr_entry(u64 target_mask, u64 va, u64 pte, u64 log_size) struct ia64_tr_entry *p; int cpu = smp_processor_id(); + if (!ia64_idtrs[cpu]) { + ia64_idtrs[cpu] = kmalloc(2 * IA64_TR_ALLOC_MAX * + sizeof (struct ia64_tr_entry), GFP_KERNEL); + if (!ia64_idtrs[cpu]) + return -ENOMEM; + } r = -EINVAL; /*Check overlap with existing TR entries*/ if (target_mask & 0x1) { - p = &__per_cpu_idtrs[cpu][0][0]; + p = ia64_idtrs[cpu]; for (i = IA64_TR_ALLOC_BASE; i <= per_cpu(ia64_tr_used, cpu); i++, p++) { if (p->pte & 0x1) @@ -444,7 +450,7 @@ int ia64_itr_entry(u64 target_mask, u64 va, u64 pte, u64 log_size) } } if (target_mask & 0x2) { - p = &__per_cpu_idtrs[cpu][1][0]; + p = ia64_idtrs[cpu] + IA64_TR_ALLOC_MAX; for (i = IA64_TR_ALLOC_BASE; i <= per_cpu(ia64_tr_used, cpu); i++, p++) { if (p->pte & 0x1) @@ -459,16 +465,16 @@ int ia64_itr_entry(u64 target_mask, u64 va, u64 pte, u64 log_size) for (i = IA64_TR_ALLOC_BASE; i < per_cpu(ia64_tr_num, cpu); i++) { switch (target_mask & 0x3) { case 1: - if (!(__per_cpu_idtrs[cpu][0][i].pte & 0x1)) + if (!((ia64_idtrs[cpu] + i)->pte & 0x1)) goto found; continue; case 2: - if (!(__per_cpu_idtrs[cpu][1][i].pte & 0x1)) + if (!((ia64_idtrs[cpu] + IA64_TR_ALLOC_MAX + i)->pte & 0x1)) goto found; continue; case 3: - if (!(__per_cpu_idtrs[cpu][0][i].pte & 0x1) && - !(__per_cpu_idtrs[cpu][1][i].pte & 0x1)) + if (!((ia64_idtrs[cpu] + i)->pte & 0x1) && + !((ia64_idtrs[cpu] + IA64_TR_ALLOC_MAX + i)->pte & 0x1)) goto found; continue; default: @@ -488,7 +494,7 @@ found: if (target_mask & 0x1) { ia64_itr(0x1, i, va, pte, log_size); ia64_srlz_i(); - p = &__per_cpu_idtrs[cpu][0][i]; + p = ia64_idtrs[cpu] + i; p->ifa = va; p->pte = pte; p->itir = log_size << 2; @@ -497,7 +503,7 @@ found: if (target_mask & 0x2) { ia64_itr(0x2, i, va, pte, log_size); ia64_srlz_i(); - p = &__per_cpu_idtrs[cpu][1][i]; + p = ia64_idtrs[cpu] + IA64_TR_ALLOC_MAX + i; p->ifa = va; p->pte = pte; p->itir = log_size << 2; @@ -528,7 +534,7 @@ void ia64_ptr_entry(u64 target_mask, int slot) return; if (target_mask & 0x1) { - p = &__per_cpu_idtrs[cpu][0][slot]; + p = ia64_idtrs[cpu] + slot; if ((p->pte&0x1) && is_tr_overlap(p, p->ifa, p->itir>>2)) { p->pte = 0; ia64_ptr(0x1, p->ifa, p->itir>>2); @@ -537,7 +543,7 @@ void ia64_ptr_entry(u64 target_mask, int slot) } if (target_mask & 0x2) { - p = &__per_cpu_idtrs[cpu][1][slot]; + p = ia64_idtrs[cpu] + IA64_TR_ALLOC_MAX + slot; if ((p->pte & 0x1) && is_tr_overlap(p, p->ifa, p->itir>>2)) { p->pte = 0; ia64_ptr(0x2, p->ifa, p->itir>>2); @@ -546,8 +552,8 @@ void ia64_ptr_entry(u64 target_mask, int slot) } for (i = per_cpu(ia64_tr_used, cpu); i >= IA64_TR_ALLOC_BASE; i--) { - if ((__per_cpu_idtrs[cpu][0][i].pte & 0x1) || - (__per_cpu_idtrs[cpu][1][i].pte & 0x1)) + if (((ia64_idtrs[cpu] + i)->pte & 0x1) || + ((ia64_idtrs[cpu] + IA64_TR_ALLOC_MAX + i)->pte & 0x1)) break; } per_cpu(ia64_tr_used, cpu) = i; |