1 files changed, 107 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_vm.h b/drivers/gpu/drm/nouveau/nouveau_vm.h
new file mode 100644
index 000000000000..b6755cfa7b71
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_vm.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2010 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#ifndef __NOUVEAU_VM_H__
+#define __NOUVEAU_VM_H__
+
+#include "drmP.h"
+
+#include "nouveau_drv.h"
+#include "nouveau_mm.h"
+
+struct nouveau_vm_pgt {
+        struct nouveau_gpuobj *obj;
+        u32 page_shift;
+        u32 refcount;
+};
+
+struct nouveau_vm_pgd {
+        struct list_head head;
+        struct nouveau_gpuobj *obj;
+};
+
+struct nouveau_vma {
+        struct nouveau_vm *vm;
+        struct nouveau_mm_node *node;
+        u64 offset;
+        u32 access;
+};
+
+struct nouveau_vm {
+        struct drm_device *dev;
+        struct nouveau_mm *mm;
+        int refcount;
+
+        struct list_head pgd_list;
+        atomic_t pgraph_refs;
+        atomic_t pcrypt_refs;
+
+        struct nouveau_vm_pgt *pgt;
+        u32 fpde;
+        u32 lpde;
+
+        u32 pgt_bits;
+        u8  spg_shift;
+        u8  lpg_shift;
+
+        void (*map_pgt)(struct nouveau_gpuobj *pgd, u32 type, u32 pde,
+                        struct nouveau_gpuobj *pgt);
+        void (*unmap_pgt)(struct nouveau_gpuobj *pgd, u32 pde);
+        void (*map)(struct nouveau_vma *, struct nouveau_gpuobj *,
+                    struct nouveau_vram *, u32 pte, u32 cnt, u64 phys);
+        void (*map_sg)(struct nouveau_vma *, struct nouveau_gpuobj *,
+                       u32 pte, dma_addr_t *, u32 cnt);
+        void (*unmap)(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt);
+        void (*flush)(struct nouveau_vm *);
+};
+
+/* nouveau_vm.c */
+int  nouveau_vm_new(struct drm_device *, u64 offset, u64 length, u64 mm_offset,
+                    u8 pgt_bits, u8 spg_shift, u8 lpg_shift,
+                    struct nouveau_vm **);
+int  nouveau_vm_ref(struct nouveau_vm *, struct nouveau_vm **,
+                    struct nouveau_gpuobj *pgd);
+int  nouveau_vm_get(struct nouveau_vm *, u64 size, u32 page_shift,
+                    u32 access, struct nouveau_vma *);
+void nouveau_vm_put(struct nouveau_vma *);
+void nouveau_vm_map(struct nouveau_vma *, struct nouveau_vram *);
+void nouveau_vm_map_at(struct nouveau_vma *, u64 offset, struct nouveau_vram *);
+void nouveau_vm_unmap(struct nouveau_vma *);
+void nouveau_vm_unmap_at(struct nouveau_vma *, u64 offset, u64 length);
+void nouveau_vm_map_sg(struct nouveau_vma *, u64 offset, u64 length,
+                       dma_addr_t *);
+
+/* nv50_vm.c */
+void nv50_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 type, u32 pde,
+                     struct nouveau_gpuobj *pgt);
+void nv50_vm_unmap_pgt(struct nouveau_gpuobj *pgd, u32 pde);
+void nv50_vm_map(struct nouveau_vma *, struct nouveau_gpuobj *,
+                 struct nouveau_vram *, u32 pte, u32 cnt, u64 phys);
+void nv50_vm_map_sg(struct nouveau_vma *, struct nouveau_gpuobj *,
+                    u32 pte, dma_addr_t *, u32 cnt);
+void nv50_vm_unmap(struct nouveau_gpuobj *, u32 pte, u32 cnt);
+void nv50_vm_flush(struct nouveau_vm *);
+void nv50_vm_flush_engine(struct drm_device *, int engine);
+
+#endif