diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_vm.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_vm.h | 107 |
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 0000000..b6755cf --- /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 |
