static void drm_bo_destroy_locked(struct drm_buffer_object *bo);
static int drm_bo_setup_vm_locked(struct drm_buffer_object *bo);
-static void drm_bo_takedown_vm_locked(struct drm_buffer_object *bo);
static void drm_bo_unmap_virtual(struct drm_buffer_object *bo);
static inline uint64_t drm_bo_type_flags(unsigned type)
* Call bo->mutex locked.
*/
-static int drm_bo_add_ttm(struct drm_buffer_object *bo)
+int drm_bo_add_ttm(struct drm_buffer_object *bo)
{
struct drm_device *dev = bo->dev;
int ret = 0;
return ret;
}
+EXPORT_SYMBOL(drm_bo_add_ttm);
static int drm_bo_handle_move_mem(struct drm_buffer_object *bo,
struct drm_bo_mem_reg *mem,
DRM_ASSERT_LOCKED(&dev->struct_mutex);
+ DRM_DEBUG("freeing %p\n", bo);
if (list_empty(&bo->lru) && bo->mem.mm_node == NULL &&
list_empty(&bo->pinned_lru) && bo->pinned_node == NULL &&
list_empty(&bo->ddestroy) && atomic_read(&bo->usage) == 0) {
entry = list_entry(list, struct drm_buffer_object, ddestroy);
nentry = NULL;
+ DRM_DEBUG("bo is %p, %d\n", entry, entry->num_pages);
if (next != &bm->ddestroy) {
nentry = list_entry(next, struct drm_buffer_object,
ddestroy);
}
EXPORT_SYMBOL(drm_bo_usage_deref_locked);
-static void drm_bo_base_deref_locked(struct drm_file *file_priv,
- struct drm_user_object *uo)
-{
- struct drm_buffer_object *bo =
- drm_user_object_entry(uo, struct drm_buffer_object, base);
-
- DRM_ASSERT_LOCKED(&bo->dev->struct_mutex);
-
- drm_bo_takedown_vm_locked(bo);
- drm_bo_usage_deref_locked(&bo);
-}
-
void drm_bo_usage_deref_unlocked(struct drm_buffer_object **bo)
{
struct drm_buffer_object *tmp_bo = *bo;
}
EXPORT_SYMBOL(drm_putback_buffer_objects);
-
/*
* Note. The caller has to register (if applicable)
* and deregister fence object usage.
}
/*
- * Call dev->struct_mutex locked.
- */
-
-struct drm_buffer_object *drm_lookup_buffer_object(struct drm_file *file_priv,
- uint32_t handle, int check_owner)
-{
- struct drm_user_object *uo;
- struct drm_buffer_object *bo;
-
- uo = drm_lookup_user_object(file_priv, handle);
-
- if (!uo || (uo->type != drm_buffer_type)) {
- DRM_ERROR("Could not find buffer object 0x%08x\n", handle);
- return NULL;
- }
-
- if (check_owner && file_priv != uo->owner) {
- if (!drm_lookup_ref_object(file_priv, uo, _DRM_REF_USE))
- return NULL;
- }
-
- bo = drm_user_object_entry(uo, struct drm_buffer_object, base);
- atomic_inc(&bo->usage);
- return bo;
-}
-EXPORT_SYMBOL(drm_lookup_buffer_object);
-
-/*
* Call bo->mutex locked.
* Returns -EBUSY if the buffer is currently rendered to or from. 0 otherwise.
* Doesn't do any fence flushing as opposed to the drm_bo_busy function.
*/
-static int drm_bo_quick_busy(struct drm_buffer_object *bo, int check_unfenced)
+int drm_bo_quick_busy(struct drm_buffer_object *bo, int check_unfenced)
{
struct drm_fence_object *fence = bo->fence;
}
/*
- * Fill in the ioctl reply argument with buffer info.
- * Bo locked.
- */
-
-void drm_bo_fill_rep_arg(struct drm_buffer_object *bo,
- struct drm_bo_info_rep *rep)
-{
- if (!rep)
- return;
-
- rep->handle = bo->base.hash.key;
- rep->flags = bo->mem.flags;
- rep->size = bo->num_pages * PAGE_SIZE;
- rep->offset = bo->offset;
-
- /*
- * drm_bo_type_device buffers have user-visible
- * handles which can be used to share across
- * processes. Hand that back to the application
- */
- if (bo->type == drm_bo_type_device)
- rep->arg_handle = bo->map_list.user_token;
- else
- rep->arg_handle = 0;
-
- rep->proposed_flags = bo->mem.proposed_flags;
- rep->buffer_start = bo->buffer_start;
- rep->fence_flags = bo->fence_type;
- rep->rep_flags = 0;
- rep->page_alignment = bo->mem.page_alignment;
-
- if ((bo->priv_flags & _DRM_BO_FLAG_UNFENCED) || drm_bo_quick_busy(bo, 1)) {
- DRM_FLAG_MASKED(rep->rep_flags, DRM_BO_REP_BUSY,
- DRM_BO_REP_BUSY);
- }
-}
-EXPORT_SYMBOL(drm_bo_fill_rep_arg);
-
-/*
- * Wait for buffer idle and register that we've mapped the buffer.
- * Mapping is registered as a drm_ref_object with type _DRM_REF_TYPE1,
- * so that if the client dies, the mapping is automatically
- * unregistered.
- */
-
-static int drm_buffer_object_map(struct drm_file *file_priv, uint32_t handle,
- uint32_t map_flags, unsigned hint,
- struct drm_bo_info_rep *rep)
-{
- struct drm_buffer_object *bo;
- struct drm_device *dev = file_priv->minor->dev;
- int ret = 0;
- int no_wait = hint & DRM_BO_HINT_DONT_BLOCK;
-
- mutex_lock(&dev->struct_mutex);
- bo = drm_lookup_buffer_object(file_priv, handle, 1);
- mutex_unlock(&dev->struct_mutex);
-
- if (!bo)
- return -EINVAL;
-
- mutex_lock(&bo->mutex);
- do {
- bo->priv_flags &= ~_DRM_BO_FLAG_UNLOCKED;
-
- ret = drm_bo_wait(bo, 0, 1, no_wait, 1);
- if (unlikely(ret))
- goto out;
-
- if (bo->mem.flags & DRM_BO_FLAG_CACHED_MAPPED)
- drm_bo_evict_cached(bo);
-
- } while (unlikely(bo->priv_flags & _DRM_BO_FLAG_UNLOCKED));
-
- atomic_inc(&bo->mapped);
- mutex_lock(&dev->struct_mutex);
- ret = drm_add_ref_object(file_priv, &bo->base, _DRM_REF_TYPE1);
- mutex_unlock(&dev->struct_mutex);
- if (ret) {
- if (atomic_dec_and_test(&bo->mapped))
- wake_up_all(&bo->event_queue);
-
- } else
- drm_bo_fill_rep_arg(bo, rep);
-
- out:
- mutex_unlock(&bo->mutex);
- drm_bo_usage_deref_unlocked(&bo);
-
- return ret;
-}
-
-static int drm_buffer_object_unmap(struct drm_file *file_priv, uint32_t handle)
-{
- struct drm_device *dev = file_priv->minor->dev;
- struct drm_buffer_object *bo;
- struct drm_ref_object *ro;
- int ret = 0;
-
- mutex_lock(&dev->struct_mutex);
-
- bo = drm_lookup_buffer_object(file_priv, handle, 1);
- if (!bo) {
- ret = -EINVAL;
- goto out;
- }
-
- ro = drm_lookup_ref_object(file_priv, &bo->base, _DRM_REF_TYPE1);
- if (!ro) {
- ret = -EINVAL;
- goto out;
- }
-
- drm_remove_ref_object(file_priv, ro);
- drm_bo_usage_deref_locked(&bo);
-out:
- mutex_unlock(&dev->struct_mutex);
- return ret;
-}
-
-/*
- * Call struct-sem locked.
- */
-
-static void drm_buffer_user_object_unmap(struct drm_file *file_priv,
- struct drm_user_object *uo,
- enum drm_ref_type action)
-{
- struct drm_buffer_object *bo =
- drm_user_object_entry(uo, struct drm_buffer_object, base);
-
- /*
- * We DON'T want to take the bo->lock here, because we want to
- * hold it when we wait for unmapped buffer.
- */
-
- BUG_ON(action != _DRM_REF_TYPE1);
-
- if (atomic_dec_and_test(&bo->mapped))
- wake_up_all(&bo->event_queue);
-}
-
-/*
* bo->mutex locked.
* Note that new_mem_flags are NOT transferred to the bo->mem.proposed_flags.
*/
DRM_FLAG_MASKED(bo->priv_flags, _DRM_BO_FLAG_UNFENCED,
_DRM_BO_FLAG_UNFENCED);
}
+ /* clear the clean flags */
+ bo->mem.flags &= ~DRM_BO_FLAG_CLEAN;
+ bo->mem.proposed_flags &= ~DRM_BO_FLAG_CLEAN;
+
mutex_unlock(&dev->struct_mutex);
mutex_unlock(&bm->evict_mutex);
return ret;
int ret;
- DRM_DEBUG("Proposed flags 0x%016llx, Old flags 0x%016llx\n",
- (unsigned long long) bo->mem.proposed_flags,
- (unsigned long long) bo->mem.flags);
ret = drm_bo_modify_proposed_flags (bo, flags, mask);
if (ret)
return ret;
+ DRM_DEBUG("Proposed flags 0x%016llx, Old flags 0x%016llx\n",
+ (unsigned long long) bo->mem.proposed_flags,
+ (unsigned long long) bo->mem.flags);
+
ret = drm_bo_wait_unmapped(bo, no_wait);
if (ret)
return ret;
int drm_bo_do_validate(struct drm_buffer_object *bo,
uint64_t flags, uint64_t mask, uint32_t hint,
- uint32_t fence_class,
- struct drm_bo_info_rep *rep)
+ uint32_t fence_class)
{
int ret;
int no_wait = (hint & DRM_BO_HINT_DONT_BLOCK) != 0;
BUG_ON(bo->priv_flags & _DRM_BO_FLAG_UNLOCKED);
out:
- if (rep)
- drm_bo_fill_rep_arg(bo, rep);
-
mutex_unlock(&bo->mutex);
return ret;
}
EXPORT_SYMBOL(drm_bo_do_validate);
-/**
- * drm_bo_handle_validate
- *
- * @file_priv: the drm file private, used to get a handle to the user context
- *
- * @handle: the buffer object handle
- *
- * @flags: access rights, mapping parameters and cacheability. See
- * the DRM_BO_FLAG_* values in drm.h
- *
- * @mask: Which flag values to change; this allows callers to modify
- * things without knowing the current state of other flags.
- *
- * @hint: changes the proceedure for this operation, see the DRM_BO_HINT_*
- * values in drm.h.
- *
- * @fence_class: a driver-specific way of doing fences. Presumably,
- * this would be used if the driver had more than one submission and
- * fencing mechanism. At this point, there isn't any use of this
- * from the user mode code.
- *
- * @rep: To be stuffed with the reply from validation
- *
- * @bp_rep: To be stuffed with the buffer object pointer
- *
- * Perform drm_bo_do_validate on a buffer referenced by a user-space handle instead
- * of a pointer to a buffer object. Optionally return a pointer to the buffer object.
- * This is a convenience wrapper only.
- */
-
-int drm_bo_handle_validate(struct drm_file *file_priv, uint32_t handle,
- uint64_t flags, uint64_t mask,
- uint32_t hint,
- uint32_t fence_class,
- struct drm_bo_info_rep *rep,
- struct drm_buffer_object **bo_rep)
-{
- struct drm_device *dev = file_priv->minor->dev;
- struct drm_buffer_object *bo;
- int ret;
-
- mutex_lock(&dev->struct_mutex);
- bo = drm_lookup_buffer_object(file_priv, handle, 1);
- mutex_unlock(&dev->struct_mutex);
-
- if (!bo)
- return -EINVAL;
-
- if (bo->base.owner != file_priv)
- mask &= ~(DRM_BO_FLAG_NO_EVICT | DRM_BO_FLAG_NO_MOVE);
-
- ret = drm_bo_do_validate(bo, flags, mask, hint, fence_class, rep);
-
- if (!ret && bo_rep)
- *bo_rep = bo;
- else
- drm_bo_usage_deref_unlocked(&bo);
-
- return ret;
-}
-EXPORT_SYMBOL(drm_bo_handle_validate);
-
-
-static int drm_bo_handle_info(struct drm_file *file_priv, uint32_t handle,
- struct drm_bo_info_rep *rep)
-{
- struct drm_device *dev = file_priv->minor->dev;
- struct drm_buffer_object *bo;
-
- mutex_lock(&dev->struct_mutex);
- bo = drm_lookup_buffer_object(file_priv, handle, 1);
- mutex_unlock(&dev->struct_mutex);
-
- if (!bo)
- return -EINVAL;
-
- mutex_lock(&bo->mutex);
-
- /*
- * FIXME: Quick busy here?
- */
-
- drm_bo_busy(bo, 1);
- drm_bo_fill_rep_arg(bo, rep);
- mutex_unlock(&bo->mutex);
- drm_bo_usage_deref_unlocked(&bo);
- return 0;
-}
-
-static int drm_bo_handle_wait(struct drm_file *file_priv, uint32_t handle,
- uint32_t hint,
- struct drm_bo_info_rep *rep)
-{
- struct drm_device *dev = file_priv->minor->dev;
- struct drm_buffer_object *bo;
- int no_wait = hint & DRM_BO_HINT_DONT_BLOCK;
- int ret;
-
- mutex_lock(&dev->struct_mutex);
- bo = drm_lookup_buffer_object(file_priv, handle, 1);
- mutex_unlock(&dev->struct_mutex);
-
- if (!bo)
- return -EINVAL;
-
- mutex_lock(&bo->mutex);
- ret = drm_bo_wait(bo, hint & DRM_BO_HINT_WAIT_LAZY, 1, no_wait, 1);
- if (ret)
- goto out;
-
- drm_bo_fill_rep_arg(bo, rep);
-out:
- mutex_unlock(&bo->mutex);
- drm_bo_usage_deref_unlocked(&bo);
- return ret;
-}
-
int drm_buffer_object_create(struct drm_device *dev,
unsigned long size,
enum drm_bo_type type,
size += buffer_start & ~PAGE_MASK;
num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
if (num_pages == 0) {
- DRM_ERROR("Illegal buffer object size.\n");
+ DRM_ERROR("Illegal buffer object size %ld.\n", size);
return -EINVAL;
}
bo->buffer_start = buffer_start & PAGE_MASK;
bo->priv_flags = 0;
bo->mem.flags = (DRM_BO_FLAG_MEM_LOCAL | DRM_BO_FLAG_CACHED |
- DRM_BO_FLAG_MAPPABLE);
+ DRM_BO_FLAG_MAPPABLE | DRM_BO_FLAG_CLEAN);
bo->mem.proposed_flags = 0;
atomic_inc(&bm->count);
/*
* Use drm_bo_modify_proposed_flags to error-check the proposed flags
*/
+ flags |= DRM_BO_FLAG_CLEAN; /* or in the clean flag */
+
ret = drm_bo_modify_proposed_flags (bo, flags, flags);
if (ret)
goto out_err;
mutex_unlock(&bo->mutex);
ret = drm_bo_do_validate(bo, 0, 0, hint | DRM_BO_HINT_DONT_FENCE,
- 0, NULL);
+ 0);
if (ret)
goto out_err_unlocked;
}
EXPORT_SYMBOL(drm_buffer_object_create);
-
-static int drm_bo_add_user_object(struct drm_file *file_priv,
- struct drm_buffer_object *bo, int shareable)
-{
- struct drm_device *dev = file_priv->minor->dev;
- int ret;
-
- mutex_lock(&dev->struct_mutex);
- ret = drm_add_user_object(file_priv, &bo->base, shareable);
- if (ret)
- goto out;
-
- bo->base.remove = drm_bo_base_deref_locked;
- bo->base.type = drm_buffer_type;
- bo->base.ref_struct_locked = NULL;
- bo->base.unref = drm_buffer_user_object_unmap;
-
-out:
- mutex_unlock(&dev->struct_mutex);
- return ret;
-}
-
-int drm_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
- struct drm_bo_create_arg *arg = data;
- struct drm_bo_create_req *req = &arg->d.req;
- struct drm_bo_info_rep *rep = &arg->d.rep;
- struct drm_buffer_object *entry;
- enum drm_bo_type bo_type;
- int ret = 0;
-
- DRM_DEBUG("drm_bo_create_ioctl: %dkb, %dkb align\n",
- (int)(req->size / 1024), req->page_alignment * 4);
-
- if (!dev->bm.initialized) {
- DRM_ERROR("Buffer object manager is not initialized.\n");
- return -EINVAL;
- }
-
- /*
- * If the buffer creation request comes in with a starting address,
- * that points at the desired user pages to map. Otherwise, create
- * a drm_bo_type_device buffer, which uses pages allocated from the kernel
- */
- bo_type = (req->buffer_start) ? drm_bo_type_user : drm_bo_type_device;
-
- /*
- * User buffers cannot be shared
- */
- if (bo_type == drm_bo_type_user)
- req->flags &= ~DRM_BO_FLAG_SHAREABLE;
-
- ret = drm_buffer_object_create(file_priv->minor->dev,
- req->size, bo_type, req->flags,
- req->hint, req->page_alignment,
- req->buffer_start, &entry);
- if (ret)
- goto out;
-
- ret = drm_bo_add_user_object(file_priv, entry,
- req->flags & DRM_BO_FLAG_SHAREABLE);
- if (ret) {
- drm_bo_usage_deref_unlocked(&entry);
- goto out;
- }
-
- mutex_lock(&entry->mutex);
- drm_bo_fill_rep_arg(entry, rep);
- mutex_unlock(&entry->mutex);
-
-out:
- return ret;
-}
-
-int drm_bo_setstatus_ioctl(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
-{
- struct drm_bo_map_wait_idle_arg *arg = data;
- struct drm_bo_info_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;
- }
-
- ret = drm_bo_read_lock(&dev->bm.bm_lock, 1);
- if (ret)
- return ret;
-
- mutex_lock(&dev->struct_mutex);
- bo = drm_lookup_buffer_object(file_priv, req->handle, 1);
- mutex_unlock(&dev->struct_mutex);
-
- if (!bo)
- return -EINVAL;
-
- if (bo->base.owner != file_priv)
- req->mask &= ~(DRM_BO_FLAG_NO_EVICT | DRM_BO_FLAG_NO_MOVE);
-
- ret = drm_bo_do_validate(bo, req->flags, req->mask,
- req->hint | DRM_BO_HINT_DONT_FENCE,
- bo->fence_class, rep);
-
- drm_bo_usage_deref_unlocked(&bo);
-
- (void) drm_bo_read_unlock(&dev->bm.bm_lock);
-
- return ret;
-}
-
-int drm_bo_map_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
- struct drm_bo_map_wait_idle_arg *arg = data;
- struct drm_bo_info_req *req = &arg->d.req;
- struct drm_bo_info_rep *rep = &arg->d.rep;
- int ret;
- if (!dev->bm.initialized) {
- DRM_ERROR("Buffer object manager is not initialized.\n");
- return -EINVAL;
- }
-
- ret = drm_buffer_object_map(file_priv, req->handle, req->mask,
- req->hint, rep);
- if (ret)
- return ret;
-
- return 0;
-}
-
-int drm_bo_unmap_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
- struct drm_bo_handle_arg *arg = data;
- int ret;
- if (!dev->bm.initialized) {
- DRM_ERROR("Buffer object manager is not initialized.\n");
- return -EINVAL;
- }
-
- ret = drm_buffer_object_unmap(file_priv, arg->handle);
- return ret;
-}
-
-
-int drm_bo_reference_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
- struct drm_bo_reference_info_arg *arg = data;
- struct drm_bo_handle_arg *req = &arg->d.req;
- struct drm_bo_info_rep *rep = &arg->d.rep;
- struct drm_user_object *uo;
- int ret;
-
- if (!dev->bm.initialized) {
- DRM_ERROR("Buffer object manager is not initialized.\n");
- return -EINVAL;
- }
-
- ret = drm_user_object_ref(file_priv, req->handle,
- drm_buffer_type, &uo);
- if (ret)
- return ret;
-
- ret = drm_bo_handle_info(file_priv, req->handle, rep);
- if (ret)
- return ret;
-
- return 0;
-}
-
-int drm_bo_unreference_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
- struct drm_bo_handle_arg *arg = data;
- int ret = 0;
-
- if (!dev->bm.initialized) {
- DRM_ERROR("Buffer object manager is not initialized.\n");
- return -EINVAL;
- }
-
- ret = drm_user_object_unref(file_priv, arg->handle, drm_buffer_type);
- return ret;
-}
-
-int drm_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
- struct drm_bo_reference_info_arg *arg = data;
- struct drm_bo_handle_arg *req = &arg->d.req;
- struct drm_bo_info_rep *rep = &arg->d.rep;
- int ret;
-
- if (!dev->bm.initialized) {
- DRM_ERROR("Buffer object manager is not initialized.\n");
- return -EINVAL;
- }
-
- ret = drm_bo_handle_info(file_priv, req->handle, rep);
- if (ret)
- return ret;
-
- return 0;
-}
-
-int drm_bo_wait_idle_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
- struct drm_bo_map_wait_idle_arg *arg = data;
- struct drm_bo_info_req *req = &arg->d.req;
- struct drm_bo_info_rep *rep = &arg->d.rep;
- int ret;
- if (!dev->bm.initialized) {
- DRM_ERROR("Buffer object manager is not initialized.\n");
- return -EINVAL;
- }
-
- ret = drm_bo_handle_wait(file_priv, req->handle,
- req->hint, rep);
- if (ret)
- return ret;
-
- return 0;
-}
-
static int drm_bo_leave_list(struct drm_buffer_object *bo,
uint32_t mem_type,
int free_pinned,
*point since we have the hardware lock.
*/
-static int drm_bo_lock_mm(struct drm_device *dev, unsigned mem_type)
+int drm_bo_lock_mm(struct drm_device *dev, unsigned mem_type)
{
int ret;
struct drm_buffer_manager *bm = &dev->bm;
if (list_empty(&bm->unfenced))
DRM_DEBUG("Unfenced list was clean\n");
+ if (bm->dummy_read_page) {
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15))
- ClearPageReserved(bm->dummy_read_page);
+ ClearPageReserved(bm->dummy_read_page);
#endif
- __free_page(bm->dummy_read_page);
+ __free_page(bm->dummy_read_page);
+ }
+ drm_uncached_fini();
out:
mutex_unlock(&dev->struct_mutex);
return ret;
}
+EXPORT_SYMBOL(drm_bo_driver_finish);
/*
* This function is intended to be called on drm driver load.
struct drm_buffer_manager *bm = &dev->bm;
int ret = -EINVAL;
+ drm_uncached_init();
+
bm->dummy_read_page = NULL;
- drm_bo_init_lock(&bm->bm_lock);
mutex_lock(&dev->struct_mutex);
if (!driver)
goto out_unlock;
* Other types need to be driver / IOCTL initialized.
*/
ret = drm_bo_init_mm(dev, DRM_BO_MEM_LOCAL, 0, 0, 1);
- if (ret)
+ if (ret) {
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15))
+ ClearPageReserved(bm->dummy_read_page);
+#endif
+ __free_page(bm->dummy_read_page);
+ bm->dummy_read_page = NULL;
goto out_unlock;
+ }
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
INIT_WORK(&bm->wq, &drm_bo_delayed_workqueue, dev);
}
EXPORT_SYMBOL(drm_bo_driver_init);
-int drm_mm_init_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
- struct drm_mm_init_arg *arg = data;
- struct drm_buffer_manager *bm = &dev->bm;
- struct drm_bo_driver *driver = dev->driver->bo_driver;
- int ret;
-
- if (!driver) {
- DRM_ERROR("Buffer objects are not supported by this driver\n");
- return -EINVAL;
- }
-
- ret = drm_bo_write_lock(&bm->bm_lock, 1, file_priv);
- if (ret)
- return ret;
-
- ret = -EINVAL;
- if (arg->magic != DRM_BO_INIT_MAGIC) {
- DRM_ERROR("You are using an old libdrm that is not compatible with\n"
- "\tthe kernel DRM module. Please upgrade your libdrm.\n");
- return -EINVAL;
- }
- if (arg->major != DRM_BO_INIT_MAJOR) {
- DRM_ERROR("libdrm and kernel DRM buffer object interface major\n"
- "\tversion don't match. Got %d, expected %d.\n",
- arg->major, DRM_BO_INIT_MAJOR);
- return -EINVAL;
- }
-
- mutex_lock(&dev->struct_mutex);
- if (!bm->initialized) {
- DRM_ERROR("DRM memory manager was not initialized.\n");
- goto out;
- }
- if (arg->mem_type == 0) {
- DRM_ERROR("System memory buffers already initialized.\n");
- goto out;
- }
- ret = drm_bo_init_mm(dev, arg->mem_type,
- arg->p_offset, arg->p_size, 0);
-
-out:
- mutex_unlock(&dev->struct_mutex);
- (void) drm_bo_write_unlock(&bm->bm_lock, file_priv);
-
- if (ret)
- return ret;
-
- return 0;
-}
-
-int drm_mm_takedown_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
- struct drm_mm_type_arg *arg = data;
- struct drm_buffer_manager *bm = &dev->bm;
- struct drm_bo_driver *driver = dev->driver->bo_driver;
- int ret;
-
- if (!driver) {
- DRM_ERROR("Buffer objects are not supported by this driver\n");
- return -EINVAL;
- }
-
- ret = drm_bo_write_lock(&bm->bm_lock, 0, file_priv);
- if (ret)
- return ret;
-
- mutex_lock(&dev->struct_mutex);
- ret = -EINVAL;
- if (!bm->initialized) {
- DRM_ERROR("DRM memory manager was not initialized\n");
- goto out;
- }
- if (arg->mem_type == 0) {
- DRM_ERROR("No takedown for System memory buffers.\n");
- goto out;
- }
- ret = 0;
- if ((ret = drm_bo_clean_mm(dev, arg->mem_type, 0))) {
- if (ret == -EINVAL)
- DRM_ERROR("Memory manager type %d not clean. "
- "Delaying takedown\n", arg->mem_type);
- ret = 0;
- }
-out:
- mutex_unlock(&dev->struct_mutex);
- (void) drm_bo_write_unlock(&bm->bm_lock, file_priv);
-
- if (ret)
- return ret;
-
- return 0;
-}
-
-int drm_mm_lock_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
- struct drm_mm_type_arg *arg = data;
- struct drm_bo_driver *driver = dev->driver->bo_driver;
- int ret;
-
- if (!driver) {
- DRM_ERROR("Buffer objects are not supported by this driver\n");
- return -EINVAL;
- }
-
- if (arg->lock_flags & DRM_BO_LOCK_IGNORE_NO_EVICT) {
- DRM_ERROR("Lock flag DRM_BO_LOCK_IGNORE_NO_EVICT not supported yet.\n");
- return -EINVAL;
- }
-
- if (arg->lock_flags & DRM_BO_LOCK_UNLOCK_BM) {
- ret = drm_bo_write_lock(&dev->bm.bm_lock, 1, file_priv);
- if (ret)
- return ret;
- }
-
- mutex_lock(&dev->struct_mutex);
- ret = drm_bo_lock_mm(dev, arg->mem_type);
- mutex_unlock(&dev->struct_mutex);
- if (ret) {
- (void) drm_bo_write_unlock(&dev->bm.bm_lock, file_priv);
- return ret;
- }
-
- return 0;
-}
-
-int drm_mm_unlock_ioctl(struct drm_device *dev,
- void *data,
- struct drm_file *file_priv)
-{
- struct drm_mm_type_arg *arg = data;
- struct drm_bo_driver *driver = dev->driver->bo_driver;
- int ret;
-
- if (!driver) {
- DRM_ERROR("Buffer objects are not supported by this driver\n");
- return -EINVAL;
- }
-
- if (arg->lock_flags & DRM_BO_LOCK_UNLOCK_BM) {
- ret = drm_bo_write_unlock(&dev->bm.bm_lock, file_priv);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
-int drm_mm_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
- struct drm_mm_info_arg *arg = data;
- struct drm_buffer_manager *bm = &dev->bm;
- struct drm_bo_driver *driver = dev->driver->bo_driver;
- struct drm_mem_type_manager *man;
- int ret = 0;
- int mem_type = arg->mem_type;
-
- if (!driver) {
- DRM_ERROR("Buffer objects are not supported by this driver\n");
- return -EINVAL;
- }
-
- if (mem_type >= DRM_BO_MEM_TYPES) {
- DRM_ERROR("Illegal memory type %d\n", arg->mem_type);
- return -EINVAL;
- }
-
- mutex_lock(&dev->struct_mutex);
- if (!bm->initialized) {
- DRM_ERROR("DRM memory manager was not initialized\n");
- ret = -EINVAL;
- goto out;
- }
-
-
- man = &bm->man[arg->mem_type];
-
- arg->p_size = man->size;
-
-out:
- mutex_unlock(&dev->struct_mutex);
-
- return ret;
-}
/*
* buffer object vm functions.
*/
* Remove any associated vm mapping on the drm device node that
* would have been created for a drm_bo_type_device buffer
*/
-static void drm_bo_takedown_vm_locked(struct drm_buffer_object *bo)
+void drm_bo_takedown_vm_locked(struct drm_buffer_object *bo)
{
struct drm_map_list *list;
drm_local_map_t *map;
list->user_token = 0ULL;
drm_bo_usage_deref_locked(&bo);
}
+EXPORT_SYMBOL(drm_bo_takedown_vm_locked);
/**
* drm_bo_setup_vm_locked:
return 0;
}
-int drm_bo_version_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
+/* used to EVICT VRAM lru at suspend time */
+void drm_bo_evict_mm(struct drm_device *dev, int mem_type, int no_wait)
{
- struct drm_bo_version_arg *arg = (struct drm_bo_version_arg *)data;
+ struct drm_buffer_manager *bm = &dev->bm;
+ struct drm_mem_type_manager *man = &bm->man[mem_type];
+ struct drm_buffer_object *entry;
+ /* we need to migrate all objects in VRAM */
+ struct list_head *lru;
+ int ret;
+ /* evict all buffers on the LRU - won't evict pinned buffers */
+
+ mutex_lock(&dev->struct_mutex);
+ do {
+ lru = &man->lru;
- arg->major = DRM_BO_INIT_MAJOR;
- arg->minor = DRM_BO_INIT_MINOR;
- arg->patchlevel = DRM_BO_INIT_PATCH;
+redo:
+ if (lru->next == &man->lru) {
+ DRM_ERROR("lru empty\n");
+ break;
+ }
+
+ entry = list_entry(lru->next, struct drm_buffer_object, lru);
+
+ if (entry->mem.flags & DRM_BO_FLAG_DISCARDABLE) {
+ lru = lru->next;
+ goto redo;
+ }
+
+ atomic_inc(&entry->usage);
+ mutex_unlock(&dev->struct_mutex);
+ mutex_lock(&entry->mutex);
+
+ ret = drm_bo_evict(entry, mem_type, no_wait);
+ mutex_unlock(&entry->mutex);
+
+ if (ret)
+ DRM_ERROR("Evict failed for BO\n");
+
+ mutex_lock(&entry->mutex);
+ (void)drm_bo_expire_fence(entry, 0);
+ mutex_unlock(&entry->mutex);
+ drm_bo_usage_deref_unlocked(&entry);
+
+ mutex_lock(&dev->struct_mutex);
+ } while(1);
+
+ mutex_unlock(&dev->struct_mutex);
- return 0;
}
+EXPORT_SYMBOL(drm_bo_evict_mm);
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