DRM_ASSERT_LOCKED(&bo->dev->struct_mutex);
- if (!bo->pinned || bo->mem.mem_type != bo->pinned_mem_type) {
+ if (!(bo->mem.mask & (DRM_BO_FLAG_NO_MOVE | DRM_BO_FLAG_NO_EVICT))
+ || bo->mem.mem_type != bo->pinned_mem_type) {
man = &bo->dev->bm.man[bo->mem.mem_type];
list_add_tail(&bo->lru, &man->lru);
} else {
mutex_lock(&entry->mutex);
mutex_lock(&dev->struct_mutex);
list_del_init(l);
- if (entry->priv_flags & _DRM_BO_FLAG_UNFENCED &&
- entry->fence_class == fence_class) {
+ if (entry->priv_flags & _DRM_BO_FLAG_UNFENCED) {
count++;
if (entry->fence)
drm_fence_usage_deref_locked(&entry->fence);
atomic_inc(&entry->usage);
mutex_unlock(&dev->struct_mutex);
mutex_lock(&entry->mutex);
- BUG_ON(entry->pinned);
+ BUG_ON(entry->mem.flags & (DRM_BO_FLAG_NO_MOVE | DRM_BO_FLAG_NO_EVICT));
ret = drm_bo_evict(entry, mem_type, no_wait);
mutex_unlock(&entry->mutex);
DRM_ERROR("User buffers are not supported yet\n");
return -EINVAL;
}
+ if (bo->type == drm_bo_type_fake &&
+ !(new_mask & (DRM_BO_FLAG_NO_MOVE | DRM_BO_FLAG_NO_EVICT))) {
+ DRM_ERROR("Fake buffers must be pinned.\n");
+ return -EINVAL;
+ }
+
+ if ((new_mask & DRM_BO_FLAG_NO_EVICT) && !DRM_SUSER(DRM_CURPROC)) {
+ DRM_ERROR
+ ("DRM_BO_FLAG_NO_EVICT is only available to priviliged "
+ "processes\n");
+ return -EPERM;
+ }
new_props = new_mask & (DRM_BO_FLAG_EXE | DRM_BO_FLAG_WRITE |
DRM_BO_FLAG_READ);
return ret;
}
- if (bo->pinned && bo->pinned_mem_type != bo->mem.mem_type) {
- DRM_ERROR("Attempt to validate pinned buffer into different memory "
- "type\n");
- return -EINVAL;
- }
-
/*
* We're switching command submission mechanism,
* or cannot simply rely on the hardware serializing for us.
}
/*
+ * Pinned buffers.
+ */
+
+ if (bo->mem.mask & (DRM_BO_FLAG_NO_EVICT | DRM_BO_FLAG_NO_MOVE)) {
+ bo->pinned_mem_type = bo->mem.mem_type;
+ mutex_lock(&dev->struct_mutex);
+ list_del_init(&bo->pinned_lru);
+ drm_bo_add_to_pinned_lru(bo);
+
+ if (bo->pinned_node != bo->mem.mm_node) {
+ if (bo->pinned_node != NULL)
+ drm_mm_put_block(bo->pinned_node);
+ bo->pinned_node = bo->mem.mm_node;
+ }
+
+ mutex_unlock(&dev->struct_mutex);
+
+ } else if (bo->pinned_node != NULL) {
+
+ mutex_lock(&dev->struct_mutex);
+
+ if (bo->pinned_node != bo->mem.mm_node)
+ drm_mm_put_block(bo->pinned_node);
+
+ list_del_init(&bo->pinned_lru);
+ bo->pinned_node = NULL;
+ mutex_unlock(&dev->struct_mutex);
+
+ }
+
+ /*
* We might need to add a TTM.
*/
}
EXPORT_SYMBOL(drm_bo_handle_validate);
-/**
- * Fills out the generic buffer object ioctl reply with the information for
- * the BO with id of handle.
- */
static int drm_bo_handle_info(struct drm_file *file_priv, uint32_t handle,
struct drm_bo_info_rep *rep)
{
}
/**
- * Pins or unpins the given buffer object in the given memory area.
- *
- * Pinned buffers will not be evicted from or move within their memory area.
- * Must be called with the hardware lock held for pinning.
- */
-static int
-drm_bo_set_pin(struct drm_device *dev, struct drm_buffer_object *bo,
- int pin)
-{
- int ret = 0;
-
- mutex_lock(&bo->mutex);
- if (bo->pinned == pin) {
- mutex_unlock(&bo->mutex);
- return 0;
- }
-
- if (pin) {
- ret = drm_bo_wait_unfenced(bo, 0, 0);
- if (ret) {
- mutex_unlock(&bo->mutex);
- return ret;
- }
-
- /* Validate the buffer into its pinned location, with no pending
- * fence.
- */
- ret = drm_buffer_object_validate(bo, bo->fence_class, 0, 0);
- if (ret) {
- mutex_unlock(&bo->mutex);
- return ret;
- }
-
- /* Add our buffer to the pinned list */
- bo->pinned_mem_type = bo->mem.mem_type;
- mutex_lock(&dev->struct_mutex);
- list_del_init(&bo->pinned_lru);
- drm_bo_add_to_pinned_lru(bo);
-
- if (bo->pinned_node != bo->mem.mm_node) {
- if (bo->pinned_node != NULL)
- drm_mm_put_block(bo->pinned_node);
- bo->pinned_node = bo->mem.mm_node;
- }
-
- mutex_unlock(&dev->struct_mutex);
-
- } else {
- mutex_lock(&dev->struct_mutex);
-
- /* Remove our buffer from the pinned list */
- if (bo->pinned_node != bo->mem.mm_node)
- drm_mm_put_block(bo->pinned_node);
-
- list_del_init(&bo->pinned_lru);
- bo->pinned_node = NULL;
- mutex_unlock(&dev->struct_mutex);
- }
- bo->pinned = pin;
- mutex_unlock(&bo->mutex);
- return 0;
-}
-
-int drm_bo_set_pin_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- struct drm_bo_set_pin_arg *arg = data;
- struct drm_bo_set_pin_req *req = &arg->d.req;
- struct drm_bo_info_rep *rep = &arg->d.rep;
- struct drm_buffer_object *bo;
- int ret;
-
- if (!dev->bm.initialized) {
- DRM_ERROR("Buffer object manager is not initialized.\n");
- return -EINVAL;
- }
-
- if (req->pin < 0 || req->pin > 1) {
- DRM_ERROR("Bad arguments to set_pin\n");
- return -EINVAL;
- }
-
- if (req->pin)
- LOCK_TEST_WITH_RETURN(dev, file_priv);
-
- mutex_lock(&dev->struct_mutex);
- bo = drm_lookup_buffer_object(file_priv, req->handle, 1);
- mutex_unlock(&dev->struct_mutex);
- if (!bo) {
- return -EINVAL;
- }
-
- ret = drm_bo_set_pin(dev, bo, req->pin);
- if (ret) {
- drm_bo_usage_deref_unlocked(&bo);
- return ret;
- }
-
- drm_bo_fill_rep_arg(bo, rep);
- drm_bo_usage_deref_unlocked(&bo);
-
- return 0;
-}
-
-
-/**
*Clean the unfenced list and put on regular LRU.
*This is part of the memory manager cleanup and should only be
*called with the DRI lock held.
mutex_unlock(&dev->struct_mutex);
}
- if (bo->pinned) {
- DRM_ERROR("A pinned buffer was present at "
+ if (bo->mem.flags & DRM_BO_FLAG_NO_EVICT) {
+ DRM_ERROR("A DRM_BO_NO_EVICT buffer present at "
"cleanup. Removing flag and evicting.\n");
- bo->pinned = 0;
+ bo->mem.flags &= ~DRM_BO_FLAG_NO_EVICT;
+ bo->mem.mask &= ~DRM_BO_FLAG_NO_EVICT;
}
if (bo->mem.mem_type == mem_type)
projects / platform / upstream / libdrm.git / commitdiff