X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fchar%2Fdrm%2Fdrm_vm.c;h=cea4105374b2b8c284b1fa05bd7772cd40bbf9d4;hb=6f157c1d268d5888ca44c589dccd01729c4172f6;hp=b5c5b9fa84c3cd55bf7e0c8343fe6e6dc15771c3;hpb=5c34202b8bf942da411b6599668a76b07449bbfd;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/char/drm/drm_vm.c b/drivers/char/drm/drm_vm.c
index b5c5b9fa84c..cea4105374b 100644
--- a/drivers/char/drm/drm_vm.c
+++ b/drivers/char/drm/drm_vm.c
@@ -79,11 +79,11 @@ static pgprot_t drm_io_prot(uint32_t map_type, struct vm_area_struct *vma)
 static __inline__ struct page *drm_do_vm_nopage(struct vm_area_struct *vma,
 						unsigned long address)
 {
-	drm_file_t *priv = vma->vm_file->private_data;
-	drm_device_t *dev = priv->head->dev;
-	drm_map_t *map = NULL;
-	drm_map_list_t *r_list;
-	drm_hash_item_t *hash;
+	struct drm_file *priv = vma->vm_file->private_data;
+	struct drm_device *dev = priv->head->dev;
+	struct drm_map *map = NULL;
+	struct drm_map_list *r_list;
+	struct drm_hash_item *hash;
 
 	/*
 	 * Find the right map
@@ -97,7 +97,7 @@ static __inline__ struct page *drm_do_vm_nopage(struct vm_area_struct *vma,
 	if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash))
 		goto vm_nopage_error;
 
-	r_list = drm_hash_entry(hash, drm_map_list_t, hash);
+	r_list = drm_hash_entry(hash, struct drm_map_list, hash);
 	map = r_list->map;
 
 	if (map && map->type == _DRM_AGP) {
@@ -116,7 +116,7 @@ static __inline__ struct page *drm_do_vm_nopage(struct vm_area_struct *vma,
 		/*
 		 * It's AGP memory - find the real physical page to map
 		 */
-		for (agpmem = dev->agp->memory; agpmem; agpmem = agpmem->next) {
+		list_for_each_entry(agpmem, &dev->agp->memory, head) {
 			if (agpmem->bound <= baddr &&
 			    agpmem->bound + agpmem->pages * PAGE_SIZE > baddr)
 				break;
@@ -163,7 +163,7 @@ static __inline__ struct page *drm_do_vm_nopage(struct vm_area_struct *vma,
 static __inline__ struct page *drm_do_vm_shm_nopage(struct vm_area_struct *vma,
 						    unsigned long address)
 {
-	drm_map_t *map = (drm_map_t *) vma->vm_private_data;
+	struct drm_map *map = (struct drm_map *) vma->vm_private_data;
 	unsigned long offset;
 	unsigned long i;
 	struct page *page;
@@ -180,7 +180,7 @@ static __inline__ struct page *drm_do_vm_shm_nopage(struct vm_area_struct *vma,
 		return NOPAGE_SIGBUS;
 	get_page(page);
 
-	DRM_DEBUG("shm_nopage 0x%lx\n", address);
+	DRM_DEBUG("0x%lx\n", address);
 	return page;
 }
 
@@ -194,12 +194,11 @@ static __inline__ struct page *drm_do_vm_shm_nopage(struct vm_area_struct *vma,
  */
 static void drm_vm_shm_close(struct vm_area_struct *vma)
 {
-	drm_file_t *priv = vma->vm_file->private_data;
-	drm_device_t *dev = priv->head->dev;
-	drm_vma_entry_t *pt, *prev, *next;
-	drm_map_t *map;
-	drm_map_list_t *r_list;
-	struct list_head *list;
+	struct drm_file *priv = vma->vm_file->private_data;
+	struct drm_device *dev = priv->head->dev;
+	struct drm_vma_entry *pt, *temp;
+	struct drm_map *map;
+	struct drm_map_list *r_list;
 	int found_maps = 0;
 
 	DRM_DEBUG("0x%08lx,0x%08lx\n",
@@ -209,30 +208,22 @@ static void drm_vm_shm_close(struct vm_area_struct *vma)
 	map = vma->vm_private_data;
 
 	mutex_lock(&dev->struct_mutex);
-	for (pt = dev->vmalist, prev = NULL; pt; pt = next) {
-		next = pt->next;
+	list_for_each_entry_safe(pt, temp, &dev->vmalist, head) {
 		if (pt->vma->vm_private_data == map)
 			found_maps++;
 		if (pt->vma == vma) {
-			if (prev) {
-				prev->next = pt->next;
-			} else {
-				dev->vmalist = pt->next;
-			}
+			list_del(&pt->head);
 			drm_free(pt, sizeof(*pt), DRM_MEM_VMAS);
-		} else {
-			prev = pt;
 		}
 	}
+
 	/* We were the only map that was found */
 	if (found_maps == 1 && map->flags & _DRM_REMOVABLE) {
 		/* Check to see if we are in the maplist, if we are not, then
 		 * we delete this mappings information.
 		 */
 		found_maps = 0;
-		list = &dev->maplist->head;
-		list_for_each(list, &dev->maplist->head) {
-			r_list = list_entry(list, drm_map_list_t, head);
+		list_for_each_entry(r_list, &dev->maplist, head) {
 			if (r_list->map == map)
 				found_maps++;
 		}
@@ -283,9 +274,9 @@ static void drm_vm_shm_close(struct vm_area_struct *vma)
 static __inline__ struct page *drm_do_vm_dma_nopage(struct vm_area_struct *vma,
 						    unsigned long address)
 {
-	drm_file_t *priv = vma->vm_file->private_data;
-	drm_device_t *dev = priv->head->dev;
-	drm_device_dma_t *dma = dev->dma;
+	struct drm_file *priv = vma->vm_file->private_data;
+	struct drm_device *dev = priv->head->dev;
+	struct drm_device_dma *dma = dev->dma;
 	unsigned long offset;
 	unsigned long page_nr;
 	struct page *page;
@@ -303,7 +294,7 @@ static __inline__ struct page *drm_do_vm_dma_nopage(struct vm_area_struct *vma,
 
 	get_page(page);
 
-	DRM_DEBUG("dma_nopage 0x%lx (page %lu)\n", address, page_nr);
+	DRM_DEBUG("0x%lx (page %lu)\n", address, page_nr);
 	return page;
 }
 
@@ -319,10 +310,10 @@ static __inline__ struct page *drm_do_vm_dma_nopage(struct vm_area_struct *vma,
 static __inline__ struct page *drm_do_vm_sg_nopage(struct vm_area_struct *vma,
 						   unsigned long address)
 {
-	drm_map_t *map = (drm_map_t *) vma->vm_private_data;
-	drm_file_t *priv = vma->vm_file->private_data;
-	drm_device_t *dev = priv->head->dev;
-	drm_sg_mem_t *entry = dev->sg;
+	struct drm_map *map = (struct drm_map *) vma->vm_private_data;
+	struct drm_file *priv = vma->vm_file->private_data;
+	struct drm_device *dev = priv->head->dev;
+	struct drm_sg_mem *entry = dev->sg;
 	unsigned long offset;
 	unsigned long map_offset;
 	unsigned long page_offset;
@@ -414,9 +405,9 @@ static struct vm_operations_struct drm_vm_sg_ops = {
  */
 static void drm_vm_open_locked(struct vm_area_struct *vma)
 {
-	drm_file_t *priv = vma->vm_file->private_data;
-	drm_device_t *dev = priv->head->dev;
-	drm_vma_entry_t *vma_entry;
+	struct drm_file *priv = vma->vm_file->private_data;
+	struct drm_device *dev = priv->head->dev;
+	struct drm_vma_entry *vma_entry;
 
 	DRM_DEBUG("0x%08lx,0x%08lx\n",
 		  vma->vm_start, vma->vm_end - vma->vm_start);
@@ -425,16 +416,15 @@ static void drm_vm_open_locked(struct vm_area_struct *vma)
 	vma_entry = drm_alloc(sizeof(*vma_entry), DRM_MEM_VMAS);
 	if (vma_entry) {
 		vma_entry->vma = vma;
-		vma_entry->next = dev->vmalist;
 		vma_entry->pid = current->pid;
-		dev->vmalist = vma_entry;
+		list_add(&vma_entry->head, &dev->vmalist);
 	}
 }
 
 static void drm_vm_open(struct vm_area_struct *vma)
 {
-	drm_file_t *priv = vma->vm_file->private_data;
-	drm_device_t *dev = priv->head->dev;
+	struct drm_file *priv = vma->vm_file->private_data;
+	struct drm_device *dev = priv->head->dev;
 
 	mutex_lock(&dev->struct_mutex);
 	drm_vm_open_locked(vma);
@@ -451,22 +441,18 @@ static void drm_vm_open(struct vm_area_struct *vma)
  */
 static void drm_vm_close(struct vm_area_struct *vma)
 {
-	drm_file_t *priv = vma->vm_file->private_data;
-	drm_device_t *dev = priv->head->dev;
-	drm_vma_entry_t *pt, *prev;
+	struct drm_file *priv = vma->vm_file->private_data;
+	struct drm_device *dev = priv->head->dev;
+	struct drm_vma_entry *pt, *temp;
 
 	DRM_DEBUG("0x%08lx,0x%08lx\n",
 		  vma->vm_start, vma->vm_end - vma->vm_start);
 	atomic_dec(&dev->vma_count);
 
 	mutex_lock(&dev->struct_mutex);
-	for (pt = dev->vmalist, prev = NULL; pt; prev = pt, pt = pt->next) {
+	list_for_each_entry_safe(pt, temp, &dev->vmalist, head) {
 		if (pt->vma == vma) {
-			if (prev) {
-				prev->next = pt->next;
-			} else {
-				dev->vmalist = pt->next;
-			}
+			list_del(&pt->head);
 			drm_free(pt, sizeof(*pt), DRM_MEM_VMAS);
 			break;
 		}
@@ -477,7 +463,7 @@ static void drm_vm_close(struct vm_area_struct *vma)
 /**
  * mmap DMA memory.
  *
- * \param filp file pointer.
+ * \param file_priv DRM file private.
  * \param vma virtual memory area.
  * \return zero on success or a negative number on failure.
  *
@@ -486,9 +472,9 @@ static void drm_vm_close(struct vm_area_struct *vma)
  */
 static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
 {
-	drm_file_t *priv = filp->private_data;
-	drm_device_t *dev;
-	drm_device_dma_t *dma;
+	struct drm_file *priv = filp->private_data;
+	struct drm_device *dev;
+	struct drm_device_dma *dma;
 	unsigned long length = vma->vm_end - vma->vm_start;
 
 	dev = priv->head->dev;
@@ -520,13 +506,14 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma)
 	vma->vm_ops = &drm_vm_dma_ops;
 
 	vma->vm_flags |= VM_RESERVED;	/* Don't swap */
+	vma->vm_flags |= VM_DONTEXPAND;
 
 	vma->vm_file = filp;	/* Needed for drm_vm_open() */
 	drm_vm_open_locked(vma);
 	return 0;
 }
 
-unsigned long drm_core_get_map_ofs(drm_map_t * map)
+unsigned long drm_core_get_map_ofs(struct drm_map * map)
 {
 	return map->offset;
 }
@@ -547,7 +534,7 @@ EXPORT_SYMBOL(drm_core_get_reg_ofs);
 /**
  * mmap DMA memory.
  *
- * \param filp file pointer.
+ * \param file_priv DRM file private.
  * \param vma virtual memory area.
  * \return zero on success or a negative number on failure.
  *
@@ -559,11 +546,11 @@ EXPORT_SYMBOL(drm_core_get_reg_ofs);
  */
 static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
 {
-	drm_file_t *priv = filp->private_data;
-	drm_device_t *dev = priv->head->dev;
-	drm_map_t *map = NULL;
+	struct drm_file *priv = filp->private_data;
+	struct drm_device *dev = priv->head->dev;
+	struct drm_map *map = NULL;
 	unsigned long offset = 0;
-	drm_hash_item_t *hash;
+	struct drm_hash_item *hash;
 
 	DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n",
 		  vma->vm_start, vma->vm_end, vma->vm_pgoff);
@@ -588,7 +575,7 @@ static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
 		return -EINVAL;
 	}
 
-	map = drm_hash_entry(hash, drm_map_list_t, hash)->map;
+	map = drm_hash_entry(hash, struct drm_map_list, hash)->map;
 	if (!map || ((map->flags & _DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN)))
 		return -EPERM;
 
@@ -669,6 +656,7 @@ static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
 		return -EINVAL;	/* This should never happen. */
 	}
 	vma->vm_flags |= VM_RESERVED;	/* Don't swap */
+	vma->vm_flags |= VM_DONTEXPAND;
 
 	vma->vm_file = filp;	/* Needed for drm_vm_open() */
 	drm_vm_open_locked(vma);
@@ -677,8 +665,8 @@ static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma)
 
 int drm_mmap(struct file *filp, struct vm_area_struct *vma)
 {
-	drm_file_t *priv = filp->private_data;
-	drm_device_t *dev = priv->head->dev;
+	struct drm_file *priv = filp->private_data;
+	struct drm_device *dev = priv->head->dev;
 	int ret;
 
 	mutex_lock(&dev->struct_mutex);