BUG_ON(obj_priv->page_list != NULL);
obj_priv->page_list = drm_calloc(page_count, sizeof(struct page *),
DRM_MEM_DRIVER);
- if (obj_priv->page_list == NULL)
+ if (obj_priv->page_list == NULL) {
+ DRM_ERROR("Faled to allocate page list\n");
return -ENOMEM;
+ }
for (i = 0; i < page_count; i++) {
obj_priv->page_list[i] =
find_or_create_page(obj->filp->f_mapping, i, GFP_HIGHUSER);
if (obj_priv->page_list[i] == NULL) {
+ DRM_ERROR("Failed to find_or_create_page()\n");
i915_gem_object_free_page_list(obj);
return -ENOMEM;
}
DRM_INFO("%s: GTT full, evicting something\n", __func__);
#endif
if (list_empty(&dev_priv->mm.inactive_list) &&
+ list_empty(&dev_priv->mm.flushing_list) &&
list_empty(&dev_priv->mm.active_list)) {
DRM_ERROR("GTT full, but LRU list empty\n");
return -ENOMEM;
}
ret = i915_gem_evict_something(dev);
- if (ret != 0)
+ if (ret != 0) {
+ DRM_ERROR("Failed to evict a buffer\n");
return ret;
+ }
goto search_free;
}
i915_gem_execbuffer(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
+ drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_gem_execbuffer *args = data;
struct drm_i915_gem_exec_object *exec_list = NULL;
struct drm_gem_object **object_list = NULL;
mutex_lock(&dev->struct_mutex);
+ if (dev_priv->mm.suspended) {
+ DRM_ERROR("Execbuf while VT-switched.\n");
+ mutex_unlock(&dev->struct_mutex);
+ return -EBUSY;
+ }
+
/* Zero the gloabl flush/invalidate flags. These
* will be modified as each object is bound to the
* gtt
}
int
+i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment)
+{
+ struct drm_device *dev = obj->dev;
+ struct drm_i915_gem_object *obj_priv = obj->driver_private;
+ int ret;
+
+ if (obj_priv->gtt_space == NULL) {
+ ret = i915_gem_object_bind_to_gtt(obj, alignment);
+ if (ret != 0) {
+ DRM_ERROR("Failure to bind in "
+ "i915_gem_pin_ioctl(): %d\n",
+ ret);
+ drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
+ }
+
+ obj_priv->pin_count++;
+ return 0;
+}
+
+void
+i915_gem_object_unpin(struct drm_gem_object *obj)
+{
+ struct drm_i915_gem_object *obj_priv = obj->driver_private;
+
+ obj_priv->pin_count--;
+}
+
+int
i915_gem_pin_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
}
-
obj_priv = obj->driver_private;
- if (obj_priv->gtt_space == NULL) {
- ret = i915_gem_object_bind_to_gtt(obj,
- (unsigned) args->alignment);
- if (ret != 0) {
- DRM_ERROR("Failure to bind in "
- "i915_gem_pin_ioctl(): %d\n",
- ret);
- drm_gem_object_unreference(obj);
- mutex_unlock(&dev->struct_mutex);
- return ret;
- }
+
+ ret = i915_gem_object_pin(obj, args->alignment);
+ if (ret != 0) {
+ drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
}
- obj_priv->pin_count++;
args->offset = obj_priv->gtt_offset;
drm_gem_object_unreference(obj);
mutex_unlock(&dev->struct_mutex);
{
struct drm_i915_gem_pin *args = data;
struct drm_gem_object *obj;
- struct drm_i915_gem_object *obj_priv;
mutex_lock(&dev->struct_mutex);
return -EINVAL;
}
- obj_priv = obj->driver_private;
- obj_priv->pin_count--;
+ i915_gem_object_unpin(obj);
+
drm_gem_object_unreference(obj);
mutex_unlock(&dev->struct_mutex);
return 0;
mutex_unlock(&dev->struct_mutex);
}
+
+static int
+i915_gem_init_ringbuffer(struct drm_device *dev)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_gem_object *obj;
+ struct drm_i915_gem_object *obj_priv;
+ int ret;
+
+ obj = drm_gem_object_alloc(dev, 128 * 1024);
+ if (obj == NULL) {
+ DRM_ERROR("Failed to allocate ringbuffer\n");
+ return -ENOMEM;
+ }
+ obj_priv = obj->driver_private;
+
+ ret = i915_gem_object_pin(obj, 4096);
+ if (ret != 0)
+ return ret;
+
+ /* Set up the kernel mapping for the ring. */
+ dev_priv->ring.Size = obj->size;
+ dev_priv->ring.tail_mask = obj->size - 1;
+
+ dev_priv->ring.map.offset = dev->agp->base + obj_priv->gtt_offset;
+ dev_priv->ring.map.size = obj->size;
+ dev_priv->ring.map.type = 0;
+ dev_priv->ring.map.flags = 0;
+ dev_priv->ring.map.mtrr = 0;
+
+ drm_core_ioremap(&dev_priv->ring.map, dev);
+ if (dev_priv->ring.map.handle == NULL) {
+ DRM_ERROR("Failed to map ringbuffer.\n");
+ memset(&dev_priv->ring, 0, sizeof(dev_priv->ring));
+ drm_gem_object_unreference(obj);
+ return -EINVAL;
+ }
+ dev_priv->ring.ring_obj = obj;
+ dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
+
+ /* Stop the ring if it's running. */
+ I915_WRITE(LP_RING + RING_LEN, 0);
+ I915_WRITE(LP_RING + RING_HEAD, 0);
+ I915_WRITE(LP_RING + RING_TAIL, 0);
+ I915_WRITE(LP_RING + RING_START, 0);
+
+ /* Initialize the ring. */
+ I915_WRITE(LP_RING + RING_START, obj_priv->gtt_offset);
+ I915_WRITE(LP_RING + RING_LEN,
+ ((obj->size - 4096) & RING_NR_PAGES) |
+ RING_NO_REPORT |
+ RING_VALID);
+
+ /* Update our cache of the ring state */
+ i915_kernel_lost_context(dev);
+
+ return 0;
+}
+
+static void
+i915_gem_cleanup_ringbuffer(struct drm_device *dev)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+
+ if (dev_priv->ring.ring_obj == NULL)
+ return;
+
+ drm_core_ioremapfree(&dev_priv->ring.map, dev);
+
+ i915_gem_object_unpin(dev_priv->ring.ring_obj);
+ drm_gem_object_unreference(dev_priv->ring.ring_obj);
+
+ memset(&dev_priv->ring, 0, sizeof(dev_priv->ring));
+}
+
+int
+i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ int ret;
+
+ ret = i915_gem_init_ringbuffer(dev);
+ if (ret != 0)
+ return ret;
+
+ mutex_lock(&dev->struct_mutex);
+ dev_priv->mm.suspended = 0;
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+/** Unbinds all objects that are on the given buffer list. */
+static int
+i915_gem_evict_from_list(struct drm_device *dev, struct list_head *head)
+{
+ struct drm_gem_object *obj;
+ struct drm_i915_gem_object *obj_priv;
+ int ret;
+
+ while (!list_empty(head)) {
+ obj_priv = list_first_entry(head,
+ struct drm_i915_gem_object,
+ list);
+ obj = obj_priv->obj;
+
+ if (obj_priv->pin_count != 0) {
+ DRM_ERROR("Pinned object in unbind list\n");
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
+ }
+
+ ret = i915_gem_object_unbind(obj);
+ if (ret != 0) {
+ DRM_ERROR("Error unbinding object in LeaveVT: %d\n",
+ ret);
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
+ }
+
+
+ return 0;
+}
+
+int
+i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+
+ mutex_lock(&dev->struct_mutex);
+ /* Hack! Don't let anybody do execbuf while we don't control the chip.
+ * We need to replace this with a semaphore, or something.
+ */
+ dev_priv->mm.suspended = 1;
+
+ /* Move all buffers out of the GTT. */
+ i915_gem_evict_from_list(dev, &dev_priv->mm.active_list);
+ i915_gem_evict_from_list(dev, &dev_priv->mm.flushing_list);
+ i915_gem_evict_from_list(dev, &dev_priv->mm.inactive_list);
+
+ /* Make sure the harware's idle. */
+ while (!list_empty(&dev_priv->mm.request_list)) {
+ struct drm_i915_gem_request *request;
+ int ret;
+
+ request = list_first_entry(&dev_priv->mm.request_list,
+ struct drm_i915_gem_request,
+ list);
+
+ ret = i915_wait_request(dev, request->seqno);
+ if (ret != 0) {
+ DRM_ERROR("Error waiting for idle at LeaveVT: %d\n",
+ ret);
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
+ }
+
+ BUG_ON(!list_empty(&dev_priv->mm.active_list));
+ BUG_ON(!list_empty(&dev_priv->mm.flushing_list));
+ BUG_ON(!list_empty(&dev_priv->mm.inactive_list));
+
+ i915_gem_cleanup_ringbuffer(dev);
+
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
dev_priv->sarea_priv = NULL;
}
- dev_priv->ring.Start = init->ring_start;
- dev_priv->ring.End = init->ring_end;
- dev_priv->ring.Size = init->ring_size;
- dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
+ if (init->ring_size != 0) {
+ dev_priv->ring.Size = init->ring_size;
+ dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
- dev_priv->ring.map.offset = init->ring_start;
- dev_priv->ring.map.size = init->ring_size;
- dev_priv->ring.map.type = 0;
- dev_priv->ring.map.flags = 0;
- dev_priv->ring.map.mtrr = 0;
+ dev_priv->ring.map.offset = init->ring_start;
+ dev_priv->ring.map.size = init->ring_size;
+ dev_priv->ring.map.type = 0;
+ dev_priv->ring.map.flags = 0;
+ dev_priv->ring.map.mtrr = 0;
- drm_core_ioremap(&dev_priv->ring.map, dev);
+ drm_core_ioremap(&dev_priv->ring.map, dev);
- if (dev_priv->ring.map.handle == NULL) {
- i915_dma_cleanup(dev);
- DRM_ERROR("can not ioremap virtual address for"
- " ring buffer\n");
- return -ENOMEM;
- }
+ if (dev_priv->ring.map.handle == NULL) {
+ i915_dma_cleanup(dev);
+ DRM_ERROR("can not ioremap virtual address for"
+ " ring buffer\n");
+ return -ENOMEM;
+ }
- dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
+ dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
+ }
dev_priv->cpp = init->cpp;
DRM_IOCTL_DEF(DRM_I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH|DRM_ROOT_ONLY),
DRM_IOCTL_DEF(DRM_I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH),
DRM_IOCTL_DEF(DRM_I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH),
};
int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);
projects / profile / ivi / libdrm.git / commitdiff