* block to allocate, and the ring is drained prior to allocations --
* in other words allocation is expensive.
*/
-static void mark_block(drm_device_t * dev, struct mem_block *p, int in_use)
+static void mark_block(struct drm_device * dev, struct mem_block *p, int in_use)
{
drm_i915_private_t *dev_priv = dev->dev_private;
drm_i915_sarea_t *sarea_priv = dev_priv->sarea_priv;
- drm_tex_region_t *list;
+ struct drm_tex_region *list;
unsigned shift, nr;
unsigned start;
unsigned end;
*/
static struct mem_block *split_block(struct mem_block *p, int start, int size,
- DRMFILE filp)
+ struct drm_file *file_priv)
{
/* Maybe cut off the start of an existing block */
if (start > p->start) {
goto out;
newblock->start = start;
newblock->size = p->size - (start - p->start);
- newblock->filp = NULL;
+ newblock->file_priv = NULL;
newblock->next = p->next;
newblock->prev = p;
p->next->prev = newblock;
goto out;
newblock->start = start + size;
newblock->size = p->size - size;
- newblock->filp = NULL;
+ newblock->file_priv = NULL;
newblock->next = p->next;
newblock->prev = p;
p->next->prev = newblock;
out:
/* Our block is in the middle */
- p->filp = filp;
+ p->file_priv = file_priv;
return p;
}
static struct mem_block *alloc_block(struct mem_block *heap, int size,
- int align2, DRMFILE filp)
+ int align2, struct drm_file *file_priv)
{
struct mem_block *p;
int mask = (1 << align2) - 1;
for (p = heap->next; p != heap; p = p->next) {
int start = (p->start + mask) & ~mask;
- if (p->filp == NULL && start + size <= p->start + p->size)
- return split_block(p, start, size, filp);
+ if (p->file_priv == NULL && start + size <= p->start + p->size)
+ return split_block(p, start, size, file_priv);
}
return NULL;
static void free_block(struct mem_block *p)
{
- p->filp = NULL;
+ p->file_priv = NULL;
- /* Assumes a single contiguous range. Needs a special filp in
+ /* Assumes a single contiguous range. Needs a special file_priv in
* 'heap' to stop it being subsumed.
*/
- if (p->next->filp == NULL) {
+ if (p->next->file_priv == NULL) {
struct mem_block *q = p->next;
p->size += q->size;
p->next = q->next;
drm_free(q, sizeof(*q), DRM_MEM_BUFLISTS);
}
- if (p->prev->filp == NULL) {
+ if (p->prev->file_priv == NULL) {
struct mem_block *q = p->prev;
q->size += p->size;
q->next = p->next;
blocks->start = start;
blocks->size = size;
- blocks->filp = NULL;
+ blocks->file_priv = NULL;
blocks->next = blocks->prev = *heap;
memset(*heap, 0, sizeof(**heap));
- (*heap)->filp = (DRMFILE) - 1;
+ (*heap)->file_priv = (struct drm_file *) - 1;
(*heap)->next = (*heap)->prev = blocks;
return 0;
}
/* Free all blocks associated with the releasing file.
*/
-void i915_mem_release(drm_device_t * dev, DRMFILE filp, struct mem_block *heap)
+void i915_mem_release(struct drm_device * dev, struct drm_file *file_priv,
+ struct mem_block *heap)
{
struct mem_block *p;
return;
for (p = heap->next; p != heap; p = p->next) {
- if (p->filp == filp) {
- p->filp = NULL;
+ if (p->file_priv == file_priv) {
+ p->file_priv = NULL;
mark_block(dev, p, 0);
}
}
- /* Assumes a single contiguous range. Needs a special filp in
+ /* Assumes a single contiguous range. Needs a special file_priv in
* 'heap' to stop it being subsumed.
*/
for (p = heap->next; p != heap; p = p->next) {
- while (p->filp == NULL && p->next->filp == NULL) {
+ while (p->file_priv == NULL && p->next->file_priv == NULL) {
struct mem_block *q = p->next;
p->size += q->size;
p->next = q->next;
/* IOCTL HANDLERS */
-int i915_mem_alloc(DRM_IOCTL_ARGS)
+int i915_mem_alloc(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- DRM_DEVICE;
drm_i915_private_t *dev_priv = dev->dev_private;
- drm_i915_mem_alloc_t alloc;
+ drm_i915_mem_alloc_t *alloc = data;
struct mem_block *block, **heap;
if (!dev_priv) {
DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
- return DRM_ERR(EINVAL);
+ return -EINVAL;
}
- DRM_COPY_FROM_USER_IOCTL(alloc, (drm_i915_mem_alloc_t __user *) data,
- sizeof(alloc));
-
- heap = get_heap(dev_priv, alloc.region);
+ heap = get_heap(dev_priv, alloc->region);
if (!heap || !*heap)
- return DRM_ERR(EFAULT);
+ return -EFAULT;
/* Make things easier on ourselves: all allocations at least
* 4k aligned.
*/
- if (alloc.alignment < 12)
- alloc.alignment = 12;
+ if (alloc->alignment < 12)
+ alloc->alignment = 12;
- block = alloc_block(*heap, alloc.size, alloc.alignment, filp);
+ block = alloc_block(*heap, alloc->size, alloc->alignment, file_priv);
if (!block)
- return DRM_ERR(ENOMEM);
+ return -ENOMEM;
mark_block(dev, block, 1);
- if (DRM_COPY_TO_USER(alloc.region_offset, &block->start, sizeof(int))) {
+ if (DRM_COPY_TO_USER(alloc->region_offset, &block->start,
+ sizeof(int))) {
DRM_ERROR("copy_to_user\n");
- return DRM_ERR(EFAULT);
+ return -EFAULT;
}
return 0;
}
-int i915_mem_free(DRM_IOCTL_ARGS)
+int i915_mem_free(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- DRM_DEVICE;
drm_i915_private_t *dev_priv = dev->dev_private;
- drm_i915_mem_free_t memfree;
+ drm_i915_mem_free_t *memfree = data;
struct mem_block *block, **heap;
if (!dev_priv) {
DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
- return DRM_ERR(EINVAL);
+ return -EINVAL;
}
- DRM_COPY_FROM_USER_IOCTL(memfree, (drm_i915_mem_free_t __user *) data,
- sizeof(memfree));
-
- heap = get_heap(dev_priv, memfree.region);
+ heap = get_heap(dev_priv, memfree->region);
if (!heap || !*heap)
- return DRM_ERR(EFAULT);
+ return -EFAULT;
- block = find_block(*heap, memfree.region_offset);
+ block = find_block(*heap, memfree->region_offset);
if (!block)
- return DRM_ERR(EFAULT);
+ return -EFAULT;
- if (block->filp != filp)
- return DRM_ERR(EPERM);
+ if (block->file_priv != file_priv)
+ return -EPERM;
mark_block(dev, block, 0);
free_block(block);
return 0;
}
-int i915_mem_init_heap(DRM_IOCTL_ARGS)
+int i915_mem_init_heap(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
{
- DRM_DEVICE;
drm_i915_private_t *dev_priv = dev->dev_private;
- drm_i915_mem_init_heap_t initheap;
+ drm_i915_mem_init_heap_t *initheap = data;
struct mem_block **heap;
if (!dev_priv) {
DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
- return DRM_ERR(EINVAL);
+ return -EINVAL;
}
- DRM_COPY_FROM_USER_IOCTL(initheap,
- (drm_i915_mem_init_heap_t __user *) data,
- sizeof(initheap));
-
- heap = get_heap(dev_priv, initheap.region);
+ heap = get_heap(dev_priv, initheap->region);
if (!heap)
- return DRM_ERR(EFAULT);
+ return -EFAULT;
if (*heap) {
DRM_ERROR("heap already initialized?");
- return DRM_ERR(EFAULT);
+ return -EFAULT;
+ }
+
+ return init_heap(heap, initheap->start, initheap->size);
+}
+
+int i915_mem_destroy_heap( struct drm_device *dev, void *data,
+ struct drm_file *file_priv )
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ drm_i915_mem_destroy_heap_t *destroyheap = data;
+ struct mem_block **heap;
+
+ if ( !dev_priv ) {
+ DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );
+ return -EINVAL;
}
- return init_heap(heap, initheap.start, initheap.size);
+ heap = get_heap( dev_priv, destroyheap->region );
+ if (!heap) {
+ DRM_ERROR("get_heap failed");
+ return -EFAULT;
+ }
+
+ if (!*heap) {
+ DRM_ERROR("heap not initialized?");
+ return -EFAULT;
+ }
+
+ i915_mem_takedown( heap );
+ return 0;
}
+
projects / linux-2.6-omap-h63xx.git / blobdiff