diff options
Diffstat (limited to 'arch/powerpc/mm/book3s64/iommu_api.c')
-rw-r--r-- | arch/powerpc/mm/book3s64/iommu_api.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/arch/powerpc/mm/book3s64/iommu_api.c b/arch/powerpc/mm/book3s64/iommu_api.c index cd18e94d0843..7fcfba162e0d 100644 --- a/arch/powerpc/mm/book3s64/iommu_api.c +++ b/arch/powerpc/mm/book3s64/iommu_api.c @@ -305,24 +305,6 @@ struct mm_iommu_table_group_mem_t *mm_iommu_lookup(struct mm_struct *mm, } EXPORT_SYMBOL_GPL(mm_iommu_lookup); -struct mm_iommu_table_group_mem_t *mm_iommu_lookup_rm(struct mm_struct *mm, - unsigned long ua, unsigned long size) -{ - struct mm_iommu_table_group_mem_t *mem, *ret = NULL; - - list_for_each_entry_lockless(mem, &mm->context.iommu_group_mem_list, - next) { - if ((mem->ua <= ua) && - (ua + size <= mem->ua + - (mem->entries << PAGE_SHIFT))) { - ret = mem; - break; - } - } - - return ret; -} - struct mm_iommu_table_group_mem_t *mm_iommu_get(struct mm_struct *mm, unsigned long ua, unsigned long entries) { @@ -369,56 +351,6 @@ long mm_iommu_ua_to_hpa(struct mm_iommu_table_group_mem_t *mem, } EXPORT_SYMBOL_GPL(mm_iommu_ua_to_hpa); -long mm_iommu_ua_to_hpa_rm(struct mm_iommu_table_group_mem_t *mem, - unsigned long ua, unsigned int pageshift, unsigned long *hpa) -{ - const long entry = (ua - mem->ua) >> PAGE_SHIFT; - unsigned long *pa; - - if (entry >= mem->entries) - return -EFAULT; - - if (pageshift > mem->pageshift) - return -EFAULT; - - if (!mem->hpas) { - *hpa = mem->dev_hpa + (ua - mem->ua); - return 0; - } - - pa = (void *) vmalloc_to_phys(&mem->hpas[entry]); - if (!pa) - return -EFAULT; - - *hpa = (*pa & MM_IOMMU_TABLE_GROUP_PAGE_MASK) | (ua & ~PAGE_MASK); - - return 0; -} - -extern void mm_iommu_ua_mark_dirty_rm(struct mm_struct *mm, unsigned long ua) -{ - struct mm_iommu_table_group_mem_t *mem; - long entry; - void *va; - unsigned long *pa; - - mem = mm_iommu_lookup_rm(mm, ua, PAGE_SIZE); - if (!mem) - return; - - if (mem->dev_hpa != MM_IOMMU_TABLE_INVALID_HPA) - return; - - entry = (ua - mem->ua) >> PAGE_SHIFT; - va = &mem->hpas[entry]; - - pa = (void *) vmalloc_to_phys(va); - if (!pa) - return; - - *pa |= MM_IOMMU_TABLE_GROUP_PAGE_DIRTY; -} - bool mm_iommu_is_devmem(struct mm_struct *mm, unsigned long hpa, unsigned int pageshift, unsigned long *size) { |