Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nouveau_bo.h

diff --git a/kernel/drivers/gpu/drm/nouveau/nouveau_bo.h b/kernel/drivers/gpu/drm/nouveau/nouveau_bo.h
new file mode 100644 (file)
index 0000000..e423609
--- /dev/null
+++ b/kernel/drivers/gpu/drm/nouveau/nouveau_bo.h
@@ -0,0 +1,108 @@
+#ifndef __NOUVEAU_BO_H__
+#define __NOUVEAU_BO_H__
+
+#include <drm/drm_gem.h>
+
+struct nouveau_channel;
+struct nouveau_fence;
+struct nvkm_vma;
+
+struct nouveau_bo {
+       struct ttm_buffer_object bo;
+       struct ttm_placement placement;
+       u32 valid_domains;
+       struct ttm_place placements[3];
+       struct ttm_place busy_placements[3];
+       bool force_coherent;
+       struct ttm_bo_kmap_obj kmap;
+       struct list_head head;
+
+       /* protected by ttm_bo_reserve() */
+       struct drm_file *reserved_by;
+       struct list_head entry;
+       int pbbo_index;
+       bool validate_mapped;
+
+       struct list_head vma_list;
+       unsigned page_shift;
+
+       u32 tile_mode;
+       u32 tile_flags;
+       struct nouveau_drm_tile *tile;
+
+       /* Only valid if allocated via nouveau_gem_new() and iff you hold a
+        * gem reference to it! For debugging, use gem.filp != NULL to test
+        * whether it is valid. */
+       struct drm_gem_object gem;
+
+       /* protect by the ttm reservation lock */
+       int pin_refcnt;
+
+       struct ttm_bo_kmap_obj dma_buf_vmap;
+};
+
+static inline struct nouveau_bo *
+nouveau_bo(struct ttm_buffer_object *bo)
+{
+       return container_of(bo, struct nouveau_bo, bo);
+}
+
+static inline int
+nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
+{
+       struct nouveau_bo *prev;
+
+       if (!pnvbo)
+               return -EINVAL;
+       prev = *pnvbo;
+
+       *pnvbo = ref ? nouveau_bo(ttm_bo_reference(&ref->bo)) : NULL;
+       if (prev) {
+               struct ttm_buffer_object *bo = &prev->bo;
+
+               ttm_bo_unref(&bo);
+       }
+
+       return 0;
+}
+
+extern struct ttm_bo_driver nouveau_bo_driver;
+
+void nouveau_bo_move_init(struct nouveau_drm *);
+int  nouveau_bo_new(struct drm_device *, int size, int align, u32 flags,
+                   u32 tile_mode, u32 tile_flags, struct sg_table *sg,
+                   struct reservation_object *robj,
+                   struct nouveau_bo **);
+int  nouveau_bo_pin(struct nouveau_bo *, u32 flags, bool contig);
+int  nouveau_bo_unpin(struct nouveau_bo *);
+int  nouveau_bo_map(struct nouveau_bo *);
+void nouveau_bo_unmap(struct nouveau_bo *);
+void nouveau_bo_placement_set(struct nouveau_bo *, u32 type, u32 busy);
+void nouveau_bo_wr16(struct nouveau_bo *, unsigned index, u16 val);
+u32  nouveau_bo_rd32(struct nouveau_bo *, unsigned index);
+void nouveau_bo_wr32(struct nouveau_bo *, unsigned index, u32 val);
+void nouveau_bo_fence(struct nouveau_bo *, struct nouveau_fence *, bool exclusive);
+int  nouveau_bo_validate(struct nouveau_bo *, bool interruptible,
+                        bool no_wait_gpu);
+void nouveau_bo_sync_for_device(struct nouveau_bo *nvbo);
+void nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo);
+
+struct nvkm_vma *
+nouveau_bo_vma_find(struct nouveau_bo *, struct nvkm_vm *);
+
+int  nouveau_bo_vma_add(struct nouveau_bo *, struct nvkm_vm *,
+                       struct nvkm_vma *);
+void nouveau_bo_vma_del(struct nouveau_bo *, struct nvkm_vma *);
+
+/* TODO: submit equivalent to TTM generic API upstream? */
+static inline void __iomem *
+nvbo_kmap_obj_iovirtual(struct nouveau_bo *nvbo)
+{
+       bool is_iomem;
+       void __iomem *ioptr = (void __force __iomem *)ttm_kmap_obj_virtual(
+                                               &nvbo->kmap, &is_iomem);
+       WARN_ON_ONCE(ioptr && !is_iomem);
+       return ioptr;
+}
+
+#endif