diff options
Diffstat (limited to 'linux-core/drm_compat.c')
| -rw-r--r-- | linux-core/drm_compat.c | 83 |
1 files changed, 67 insertions, 16 deletions
diff --git a/linux-core/drm_compat.c b/linux-core/drm_compat.c index 08d20d06..ae44e500 100644 --- a/linux-core/drm_compat.c +++ b/linux-core/drm_compat.c @@ -196,21 +196,24 @@ static int vm_insert_pfn(struct vm_area_struct *vma, unsigned long addr, return ret; } -static struct page *drm_bo_vm_fault(struct vm_area_struct *vma, + +static struct page *drm_bo_vm_fault(struct vm_area_struct *vma, struct fault_data *data) { unsigned long address = data->address; - drm_buffer_object_t *bo = (drm_buffer_object_t *) vma->vm_private_data; + struct drm_buffer_object *bo = (struct drm_buffer_object *) vma->vm_private_data; unsigned long page_offset; struct page *page = NULL; - drm_ttm_t *ttm; - drm_device_t *dev; + struct drm_ttm *ttm; + struct drm_device *dev; unsigned long pfn; int err; unsigned long bus_base; unsigned long bus_offset; unsigned long bus_size; + dev = bo->dev; + while(drm_bo_read_lock(&dev->bm.bm_lock)); mutex_lock(&bo->mutex); @@ -261,7 +264,7 @@ static struct page *drm_bo_vm_fault(struct vm_area_struct *vma, page_offset = (address - vma->vm_start) >> PAGE_SHIFT; if (bus_size) { - drm_mem_type_manager_t *man = &dev->bm.man[bo->mem.mem_type]; + struct drm_mem_type_manager *man = &dev->bm.man[bo->mem.mem_type]; pfn = ((bus_base + bus_offset) >> PAGE_SHIFT) + page_offset; vma->vm_page_prot = drm_io_prot(man->drm_bus_maptype, vma); @@ -288,6 +291,7 @@ static struct page *drm_bo_vm_fault(struct vm_area_struct *vma, data->type = VM_FAULT_OOM; out_unlock: mutex_unlock(&bo->mutex); + drm_bo_read_unlock(&dev->bm.bm_lock); return NULL; } @@ -350,11 +354,11 @@ struct page *drm_bo_vm_nopage(struct vm_area_struct *vma, unsigned long address, int *type) { - drm_buffer_object_t *bo = (drm_buffer_object_t *) vma->vm_private_data; + struct drm_buffer_object *bo = (struct drm_buffer_object *) vma->vm_private_data; unsigned long page_offset; struct page *page; - drm_ttm_t *ttm; - drm_device_t *dev; + struct drm_ttm *ttm; + struct drm_device *dev; mutex_lock(&bo->mutex); @@ -394,7 +398,7 @@ out_unlock: int drm_bo_map_bound(struct vm_area_struct *vma) { - drm_buffer_object_t *bo = (drm_buffer_object_t *)vma->vm_private_data; + struct drm_buffer_object *bo = (struct drm_buffer_object *)vma->vm_private_data; int ret = 0; unsigned long bus_base; unsigned long bus_offset; @@ -405,7 +409,7 @@ int drm_bo_map_bound(struct vm_area_struct *vma) BUG_ON(ret); if (bus_size) { - drm_mem_type_manager_t *man = &bo->dev->bm.man[bo->mem.mem_type]; + struct drm_mem_type_manager *man = &bo->dev->bm.man[bo->mem.mem_type]; unsigned long pfn = (bus_base + bus_offset) >> PAGE_SHIFT; pgprot_t pgprot = drm_io_prot(man->drm_bus_maptype, vma); ret = io_remap_pfn_range(vma, vma->vm_start, pfn, @@ -417,7 +421,7 @@ int drm_bo_map_bound(struct vm_area_struct *vma) } -int drm_bo_add_vma(drm_buffer_object_t * bo, struct vm_area_struct *vma) +int drm_bo_add_vma(struct drm_buffer_object * bo, struct vm_area_struct *vma) { p_mm_entry_t *entry, *n_entry; vma_entry_t *v_entry; @@ -453,7 +457,7 @@ int drm_bo_add_vma(drm_buffer_object_t * bo, struct vm_area_struct *vma) return 0; } -void drm_bo_delete_vma(drm_buffer_object_t * bo, struct vm_area_struct *vma) +void drm_bo_delete_vma(struct drm_buffer_object * bo, struct vm_area_struct *vma) { p_mm_entry_t *entry, *n; vma_entry_t *v_entry, *v_n; @@ -485,7 +489,7 @@ void drm_bo_delete_vma(drm_buffer_object_t * bo, struct vm_area_struct *vma) -int drm_bo_lock_kmm(drm_buffer_object_t * bo) +int drm_bo_lock_kmm(struct drm_buffer_object * bo) { p_mm_entry_t *entry; int lock_ok = 1; @@ -517,7 +521,7 @@ int drm_bo_lock_kmm(drm_buffer_object_t * bo) return -EAGAIN; } -void drm_bo_unlock_kmm(drm_buffer_object_t * bo) +void drm_bo_unlock_kmm(struct drm_buffer_object * bo) { p_mm_entry_t *entry; @@ -528,7 +532,7 @@ void drm_bo_unlock_kmm(drm_buffer_object_t * bo) } } -int drm_bo_remap_bound(drm_buffer_object_t *bo) +int drm_bo_remap_bound(struct drm_buffer_object *bo) { vma_entry_t *v_entry; int ret = 0; @@ -544,7 +548,7 @@ int drm_bo_remap_bound(drm_buffer_object_t *bo) return ret; } -void drm_bo_finish_unmap(drm_buffer_object_t *bo) +void drm_bo_finish_unmap(struct drm_buffer_object *bo) { vma_entry_t *v_entry; @@ -677,4 +681,51 @@ void idr_remove_all(struct idr *idp) idp->layers = 0; } EXPORT_SYMBOL(idr_remove_all); + +#endif /* DRM_IDR_COMPAT_FN */ + + + +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)) +/** + * idr_replace - replace pointer for given id + * @idp: idr handle + * @ptr: pointer you want associated with the id + * @id: lookup key + * + * Replace the pointer registered with an id and return the old value. + * A -ENOENT return indicates that @id was not found. + * A -EINVAL return indicates that @id was not within valid constraints. + * + * The caller must serialize vs idr_find(), idr_get_new(), and idr_remove(). + */ +void *idr_replace(struct idr *idp, void *ptr, int id) +{ + int n; + struct idr_layer *p, *old_p; + + n = idp->layers * IDR_BITS; + p = idp->top; + + id &= MAX_ID_MASK; + + if (id >= (1 << n)) + return ERR_PTR(-EINVAL); + + n -= IDR_BITS; + while ((n > 0) && p) { + p = p->ary[(id >> n) & IDR_MASK]; + n -= IDR_BITS; + } + + n = id & IDR_MASK; + if (unlikely(p == NULL || !test_bit(n, &p->bitmap))) + return ERR_PTR(-ENOENT); + + old_p = p->ary[n]; + p->ary[n] = ptr; + + return (void *)old_p; +} +EXPORT_SYMBOL(idr_replace); #endif |