]> git.karo-electronics.de Git - karo-tx-linux.git/blobdiff - drivers/gpu/drm/qxl/qxl_release.c
Merge remote-tracking branch 'pfdo/drm-rcar-for-v3.12' into drm-next
[karo-tx-linux.git] / drivers / gpu / drm / qxl / qxl_release.c
index 1a648e1da6a6ac7f295fc6418e5ad8873b08236a..0109a9644cb29ef7a6e13ac76a90544effcefd20 100644 (file)
@@ -38,7 +38,8 @@
 
 static const int release_size_per_bo[] = { RELEASE_SIZE, SURFACE_RELEASE_SIZE, RELEASE_SIZE };
 static const int releases_per_bo[] = { RELEASES_PER_BO, SURFACE_RELEASES_PER_BO, RELEASES_PER_BO };
-uint64_t
+
+static uint64_t
 qxl_release_alloc(struct qxl_device *qdev, int type,
                  struct qxl_release **ret)
 {
@@ -53,9 +54,9 @@ qxl_release_alloc(struct qxl_device *qdev, int type,
                return 0;
        }
        release->type = type;
-       release->bo_count = 0;
        release->release_offset = 0;
        release->surface_release_id = 0;
+       INIT_LIST_HEAD(&release->bos);
 
        idr_preload(GFP_KERNEL);
        spin_lock(&qdev->release_idr_lock);
@@ -77,20 +78,20 @@ void
 qxl_release_free(struct qxl_device *qdev,
                 struct qxl_release *release)
 {
-       int i;
-
-       QXL_INFO(qdev, "release %d, type %d, %d bos\n", release->id,
-                release->type, release->bo_count);
+       struct qxl_bo_list *entry, *tmp;
+       QXL_INFO(qdev, "release %d, type %d\n", release->id,
+                release->type);
 
        if (release->surface_release_id)
                qxl_surface_id_dealloc(qdev, release->surface_release_id);
 
-       for (i = 0 ; i < release->bo_count; ++i) {
+       list_for_each_entry_safe(entry, tmp, &release->bos, tv.head) {
+               struct qxl_bo *bo = to_qxl_bo(entry->tv.bo);
                QXL_INFO(qdev, "release %llx\n",
-                       drm_vma_node_offset_addr(&release->bos[i]->tbo.vma_node)
+                       drm_vma_node_offset_addr(&entry->tv.bo->vma_node)
                                                - DRM_FILE_OFFSET);
-               qxl_fence_remove_release(&release->bos[i]->fence, release->id);
-               qxl_bo_unref(&release->bos[i]);
+               qxl_fence_remove_release(&bo->fence, release->id);
+               qxl_bo_unref(&bo);
        }
        spin_lock(&qdev->release_idr_lock);
        idr_remove(&qdev->release_idr, release->id);
@@ -98,83 +99,117 @@ qxl_release_free(struct qxl_device *qdev,
        kfree(release);
 }
 
-void
-qxl_release_add_res(struct qxl_device *qdev, struct qxl_release *release,
-                   struct qxl_bo *bo)
-{
-       int i;
-       for (i = 0; i < release->bo_count; i++)
-               if (release->bos[i] == bo)
-                       return;
-
-       if (release->bo_count >= QXL_MAX_RES) {
-               DRM_ERROR("exceeded max resource on a qxl_release item\n");
-               return;
-       }
-       release->bos[release->bo_count++] = qxl_bo_ref(bo);
-}
-
 static int qxl_release_bo_alloc(struct qxl_device *qdev,
                                struct qxl_bo **bo)
 {
        int ret;
-       ret = qxl_bo_create(qdev, PAGE_SIZE, false, QXL_GEM_DOMAIN_VRAM, NULL,
+       /* pin releases bo's they are too messy to evict */
+       ret = qxl_bo_create(qdev, PAGE_SIZE, false, true,
+                           QXL_GEM_DOMAIN_VRAM, NULL,
                            bo);
        return ret;
 }
 
-int qxl_release_reserve(struct qxl_device *qdev,
-                       struct qxl_release *release, bool no_wait)
+int qxl_release_list_add(struct qxl_release *release, struct qxl_bo *bo)
+{
+       struct qxl_bo_list *entry;
+
+       list_for_each_entry(entry, &release->bos, tv.head) {
+               if (entry->tv.bo == &bo->tbo)
+                       return 0;
+       }
+
+       entry = kmalloc(sizeof(struct qxl_bo_list), GFP_KERNEL);
+       if (!entry)
+               return -ENOMEM;
+
+       qxl_bo_ref(bo);
+       entry->tv.bo = &bo->tbo;
+       list_add_tail(&entry->tv.head, &release->bos);
+       return 0;
+}
+
+static int qxl_release_validate_bo(struct qxl_bo *bo)
 {
        int ret;
-       if (atomic_inc_return(&release->bos[0]->reserve_count) == 1) {
-               ret = qxl_bo_reserve(release->bos[0], no_wait);
+
+       if (!bo->pin_count) {
+               qxl_ttm_placement_from_domain(bo, bo->type, false);
+               ret = ttm_bo_validate(&bo->tbo, &bo->placement,
+                                     true, false);
                if (ret)
                        return ret;
        }
+
+       /* allocate a surface for reserved + validated buffers */
+       ret = qxl_bo_check_id(bo->gem_base.dev->dev_private, bo);
+       if (ret)
+               return ret;
+       return 0;
+}
+
+int qxl_release_reserve_list(struct qxl_release *release, bool no_intr)
+{
+       int ret;
+       struct qxl_bo_list *entry;
+
+       /* if only one object on the release its the release itself
+          since these objects are pinned no need to reserve */
+       if (list_is_singular(&release->bos))
+               return 0;
+
+       ret = ttm_eu_reserve_buffers(&release->ticket, &release->bos);
+       if (ret)
+               return ret;
+
+       list_for_each_entry(entry, &release->bos, tv.head) {
+               struct qxl_bo *bo = to_qxl_bo(entry->tv.bo);
+
+               ret = qxl_release_validate_bo(bo);
+               if (ret) {
+                       ttm_eu_backoff_reservation(&release->ticket, &release->bos);
+                       return ret;
+               }
+       }
        return 0;
 }
 
-void qxl_release_unreserve(struct qxl_device *qdev,
-                         struct qxl_release *release)
+void qxl_release_backoff_reserve_list(struct qxl_release *release)
 {
-       if (atomic_dec_and_test(&release->bos[0]->reserve_count))
-               qxl_bo_unreserve(release->bos[0]);
+       /* if only one object on the release its the release itself
+          since these objects are pinned no need to reserve */
+       if (list_is_singular(&release->bos))
+               return;
+
+       ttm_eu_backoff_reservation(&release->ticket, &release->bos);
 }
 
+
 int qxl_alloc_surface_release_reserved(struct qxl_device *qdev,
                                       enum qxl_surface_cmd_type surface_cmd_type,
                                       struct qxl_release *create_rel,
                                       struct qxl_release **release)
 {
-       int ret;
-
        if (surface_cmd_type == QXL_SURFACE_CMD_DESTROY && create_rel) {
                int idr_ret;
+               struct qxl_bo_list *entry = list_first_entry(&create_rel->bos, struct qxl_bo_list, tv.head);
                struct qxl_bo *bo;
                union qxl_release_info *info;
 
                /* stash the release after the create command */
                idr_ret = qxl_release_alloc(qdev, QXL_RELEASE_SURFACE_CMD, release);
-               bo = qxl_bo_ref(create_rel->bos[0]);
+               bo = qxl_bo_ref(to_qxl_bo(entry->tv.bo));
 
                (*release)->release_offset = create_rel->release_offset + 64;
 
-               qxl_release_add_res(qdev, *release, bo);
+               qxl_release_list_add(*release, bo);
 
-               ret = qxl_release_reserve(qdev, *release, false);
-               if (ret) {
-                       DRM_ERROR("release reserve failed\n");
-                       goto out_unref;
-               }
                info = qxl_release_map(qdev, *release);
                info->id = idr_ret;
                qxl_release_unmap(qdev, *release, info);
 
-
-out_unref:
                qxl_bo_unref(&bo);
-               return ret;
+               return 0;
        }
 
        return qxl_alloc_release_reserved(qdev, sizeof(struct qxl_surface_cmd),
@@ -187,7 +222,7 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
 {
        struct qxl_bo *bo;
        int idr_ret;
-       int ret;
+       int ret = 0;
        union qxl_release_info *info;
        int cur_idx;
 
@@ -216,11 +251,6 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
                        mutex_unlock(&qdev->release_mutex);
                        return ret;
                }
-
-               /* pin releases bo's they are too messy to evict */
-               ret = qxl_bo_reserve(qdev->current_release_bo[cur_idx], false);
-               qxl_bo_pin(qdev->current_release_bo[cur_idx], QXL_GEM_DOMAIN_VRAM, NULL);
-               qxl_bo_unreserve(qdev->current_release_bo[cur_idx]);
        }
 
        bo = qxl_bo_ref(qdev->current_release_bo[cur_idx]);
@@ -231,36 +261,18 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
        if (rbo)
                *rbo = bo;
 
-       qxl_release_add_res(qdev, *release, bo);
-
-       ret = qxl_release_reserve(qdev, *release, false);
        mutex_unlock(&qdev->release_mutex);
-       if (ret)
-               goto out_unref;
+
+       qxl_release_list_add(*release, bo);
 
        info = qxl_release_map(qdev, *release);
        info->id = idr_ret;
        qxl_release_unmap(qdev, *release, info);
 
-out_unref:
        qxl_bo_unref(&bo);
        return ret;
 }
 
-int qxl_fence_releaseable(struct qxl_device *qdev,
-                         struct qxl_release *release)
-{
-       int i, ret;
-       for (i = 0; i < release->bo_count; i++) {
-               if (!release->bos[i]->tbo.sync_obj)
-                       release->bos[i]->tbo.sync_obj = &release->bos[i]->fence;
-               ret = qxl_fence_add_release(&release->bos[i]->fence, release->id);
-               if (ret)
-                       return ret;
-       }
-       return 0;
-}
-
 struct qxl_release *qxl_release_from_id_locked(struct qxl_device *qdev,
                                                   uint64_t id)
 {
@@ -273,10 +285,7 @@ struct qxl_release *qxl_release_from_id_locked(struct qxl_device *qdev,
                DRM_ERROR("failed to find id in release_idr\n");
                return NULL;
        }
-       if (release->bo_count < 1) {
-               DRM_ERROR("read a released resource with 0 bos\n");
-               return NULL;
-       }
+
        return release;
 }
 
@@ -285,9 +294,12 @@ union qxl_release_info *qxl_release_map(struct qxl_device *qdev,
 {
        void *ptr;
        union qxl_release_info *info;
-       struct qxl_bo *bo = release->bos[0];
+       struct qxl_bo_list *entry = list_first_entry(&release->bos, struct qxl_bo_list, tv.head);
+       struct qxl_bo *bo = to_qxl_bo(entry->tv.bo);
 
        ptr = qxl_bo_kmap_atomic_page(qdev, bo, release->release_offset & PAGE_SIZE);
+       if (!ptr)
+               return NULL;
        info = ptr + (release->release_offset & ~PAGE_SIZE);
        return info;
 }
@@ -296,9 +308,51 @@ void qxl_release_unmap(struct qxl_device *qdev,
                       struct qxl_release *release,
                       union qxl_release_info *info)
 {
-       struct qxl_bo *bo = release->bos[0];
+       struct qxl_bo_list *entry = list_first_entry(&release->bos, struct qxl_bo_list, tv.head);
+       struct qxl_bo *bo = to_qxl_bo(entry->tv.bo);
        void *ptr;
 
        ptr = ((void *)info) - (release->release_offset & ~PAGE_SIZE);
        qxl_bo_kunmap_atomic_page(qdev, bo, ptr);
 }
+
+void qxl_release_fence_buffer_objects(struct qxl_release *release)
+{
+       struct ttm_validate_buffer *entry;
+       struct ttm_buffer_object *bo;
+       struct ttm_bo_global *glob;
+       struct ttm_bo_device *bdev;
+       struct ttm_bo_driver *driver;
+       struct qxl_bo *qbo;
+
+       /* if only one object on the release its the release itself
+          since these objects are pinned no need to reserve */
+       if (list_is_singular(&release->bos))
+               return;
+
+       bo = list_first_entry(&release->bos, struct ttm_validate_buffer, head)->bo;
+       bdev = bo->bdev;
+       driver = bdev->driver;
+       glob = bo->glob;
+
+       spin_lock(&glob->lru_lock);
+       spin_lock(&bdev->fence_lock);
+
+       list_for_each_entry(entry, &release->bos, head) {
+               bo = entry->bo;
+               qbo = to_qxl_bo(bo);
+
+               if (!entry->bo->sync_obj)
+                       entry->bo->sync_obj = &qbo->fence;
+
+               qxl_fence_add_release_locked(&qbo->fence, release->id);
+
+               ttm_bo_add_to_lru(bo);
+               ww_mutex_unlock(&bo->resv->lock);
+               entry->reserved = false;
+       }
+       spin_unlock(&bdev->fence_lock);
+       spin_unlock(&glob->lru_lock);
+       ww_acquire_fini(&release->ticket);
+}
+