1 /* 2 * Copyright 2010 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 */ 24 25 #ifndef __NOUVEAU_VM_H__ 26 #define __NOUVEAU_VM_H__ 27 28 #include "drmP.h" 29 30 #include "nouveau_drv.h" 31 #include "nouveau_mm.h" 32 33 struct nouveau_vm_pgt { 34 struct nouveau_gpuobj *obj[2]; 35 u32 refcount[2]; 36 }; 37 38 struct nouveau_vm_pgd { 39 struct list_head head; 40 struct nouveau_gpuobj *obj; 41 }; 42 43 struct nouveau_vma { 44 struct list_head head; 45 int refcount; 46 struct nouveau_vm *vm; 47 struct nouveau_mm_node *node; 48 u64 offset; 49 u32 access; 50 }; 51 52 struct nouveau_vm { 53 struct drm_device *dev; 54 struct nouveau_mm mm; 55 int refcount; 56 57 struct list_head pgd_list; 58 atomic_t engref[16]; 59 60 struct nouveau_vm_pgt *pgt; 61 u32 fpde; 62 u32 lpde; 63 64 u32 pgt_bits; 65 u8 spg_shift; 66 u8 lpg_shift; 67 68 void (*map_pgt)(struct nouveau_gpuobj *pgd, u32 pde, 69 struct nouveau_gpuobj *pgt[2]); 70 void (*map)(struct nouveau_vma *, struct nouveau_gpuobj *, 71 struct nouveau_mem *, u32 pte, u32 cnt, 72 u64 phys, u64 delta); 73 void (*map_sg)(struct nouveau_vma *, struct nouveau_gpuobj *, 74 struct nouveau_mem *, u32 pte, u32 cnt, dma_addr_t *); 75 void (*unmap)(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt); 76 void (*flush)(struct nouveau_vm *); 77 }; 78 79 /* nouveau_vm.c */ 80 int nouveau_vm_new(struct drm_device *, u64 offset, u64 length, u64 mm_offset, 81 struct nouveau_vm **); 82 int nouveau_vm_ref(struct nouveau_vm *, struct nouveau_vm **, 83 struct nouveau_gpuobj *pgd); 84 int nouveau_vm_get(struct nouveau_vm *, u64 size, u32 page_shift, 85 u32 access, struct nouveau_vma *); 86 void nouveau_vm_put(struct nouveau_vma *); 87 void nouveau_vm_map(struct nouveau_vma *, struct nouveau_mem *); 88 void nouveau_vm_map_at(struct nouveau_vma *, u64 offset, struct nouveau_mem *); 89 void nouveau_vm_unmap(struct nouveau_vma *); 90 void nouveau_vm_unmap_at(struct nouveau_vma *, u64 offset, u64 length); 91 void nouveau_vm_map_sg(struct nouveau_vma *, u64 offset, u64 length, 92 struct nouveau_mem *); 93 94 /* nv50_vm.c */ 95 void nv50_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 pde, 96 struct nouveau_gpuobj *pgt[2]); 97 void nv50_vm_map(struct nouveau_vma *, struct nouveau_gpuobj *, 98 struct nouveau_mem *, u32 pte, u32 cnt, u64 phys, u64 delta); 99 void nv50_vm_map_sg(struct nouveau_vma *, struct nouveau_gpuobj *, 100 struct nouveau_mem *, u32 pte, u32 cnt, dma_addr_t *); 101 void nv50_vm_unmap(struct nouveau_gpuobj *, u32 pte, u32 cnt); 102 void nv50_vm_flush(struct nouveau_vm *); 103 void nv50_vm_flush_engine(struct drm_device *, int engine); 104 105 /* nvc0_vm.c */ 106 void nvc0_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 pde, 107 struct nouveau_gpuobj *pgt[2]); 108 void nvc0_vm_map(struct nouveau_vma *, struct nouveau_gpuobj *, 109 struct nouveau_mem *, u32 pte, u32 cnt, u64 phys, u64 delta); 110 void nvc0_vm_map_sg(struct nouveau_vma *, struct nouveau_gpuobj *, 111 struct nouveau_mem *, u32 pte, u32 cnt, dma_addr_t *); 112 void nvc0_vm_unmap(struct nouveau_gpuobj *, u32 pte, u32 cnt); 113 void nvc0_vm_flush(struct nouveau_vm *); 114 115 #endif 116