1 /* 2 * Copyright 2012 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 #define nv04_instmem(p) container_of((p), struct nv04_instmem, base) 25 #include "priv.h" 26 27 #include <core/ramht.h> 28 29 struct nv04_instmem { 30 struct nvkm_instmem base; 31 struct nvkm_mm heap; 32 }; 33 34 /****************************************************************************** 35 * instmem object implementation 36 *****************************************************************************/ 37 #define nv04_instobj(p) container_of((p), struct nv04_instobj, base.memory) 38 39 struct nv04_instobj { 40 struct nvkm_instobj base; 41 struct nv04_instmem *imem; 42 struct nvkm_mm_node *node; 43 }; 44 45 static void 46 nv04_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data) 47 { 48 struct nv04_instobj *iobj = nv04_instobj(memory); 49 struct nvkm_device *device = iobj->imem->base.subdev.device; 50 nvkm_wr32(device, 0x700000 + iobj->node->offset + offset, data); 51 } 52 53 static u32 54 nv04_instobj_rd32(struct nvkm_memory *memory, u64 offset) 55 { 56 struct nv04_instobj *iobj = nv04_instobj(memory); 57 struct nvkm_device *device = iobj->imem->base.subdev.device; 58 return nvkm_rd32(device, 0x700000 + iobj->node->offset + offset); 59 } 60 61 static const struct nvkm_memory_ptrs 62 nv04_instobj_ptrs = { 63 .rd32 = nv04_instobj_rd32, 64 .wr32 = nv04_instobj_wr32, 65 }; 66 67 static void 68 nv04_instobj_release(struct nvkm_memory *memory) 69 { 70 } 71 72 static void __iomem * 73 nv04_instobj_acquire(struct nvkm_memory *memory) 74 { 75 struct nv04_instobj *iobj = nv04_instobj(memory); 76 struct nvkm_device *device = iobj->imem->base.subdev.device; 77 return device->pri + 0x700000 + iobj->node->offset; 78 } 79 80 static u64 81 nv04_instobj_size(struct nvkm_memory *memory) 82 { 83 return nv04_instobj(memory)->node->length; 84 } 85 86 static u64 87 nv04_instobj_addr(struct nvkm_memory *memory) 88 { 89 return nv04_instobj(memory)->node->offset; 90 } 91 92 static enum nvkm_memory_target 93 nv04_instobj_target(struct nvkm_memory *memory) 94 { 95 return NVKM_MEM_TARGET_INST; 96 } 97 98 static void * 99 nv04_instobj_dtor(struct nvkm_memory *memory) 100 { 101 struct nv04_instobj *iobj = nv04_instobj(memory); 102 mutex_lock(&iobj->imem->base.mutex); 103 nvkm_mm_free(&iobj->imem->heap, &iobj->node); 104 mutex_unlock(&iobj->imem->base.mutex); 105 nvkm_instobj_dtor(&iobj->imem->base, &iobj->base); 106 return iobj; 107 } 108 109 static const struct nvkm_memory_func 110 nv04_instobj_func = { 111 .dtor = nv04_instobj_dtor, 112 .target = nv04_instobj_target, 113 .size = nv04_instobj_size, 114 .addr = nv04_instobj_addr, 115 .acquire = nv04_instobj_acquire, 116 .release = nv04_instobj_release, 117 }; 118 119 static int 120 nv04_instobj_new(struct nvkm_instmem *base, u32 size, u32 align, bool zero, 121 struct nvkm_memory **pmemory) 122 { 123 struct nv04_instmem *imem = nv04_instmem(base); 124 struct nv04_instobj *iobj; 125 int ret; 126 127 if (!(iobj = kzalloc(sizeof(*iobj), GFP_KERNEL))) 128 return -ENOMEM; 129 *pmemory = &iobj->base.memory; 130 131 nvkm_instobj_ctor(&nv04_instobj_func, &imem->base, &iobj->base); 132 iobj->base.memory.ptrs = &nv04_instobj_ptrs; 133 iobj->imem = imem; 134 135 mutex_lock(&imem->base.mutex); 136 ret = nvkm_mm_head(&imem->heap, 0, 1, size, size, align ? align : 1, &iobj->node); 137 mutex_unlock(&imem->base.mutex); 138 return ret; 139 } 140 141 /****************************************************************************** 142 * instmem subdev implementation 143 *****************************************************************************/ 144 145 static u32 146 nv04_instmem_rd32(struct nvkm_instmem *imem, u32 addr) 147 { 148 return nvkm_rd32(imem->subdev.device, 0x700000 + addr); 149 } 150 151 static void 152 nv04_instmem_wr32(struct nvkm_instmem *imem, u32 addr, u32 data) 153 { 154 nvkm_wr32(imem->subdev.device, 0x700000 + addr, data); 155 } 156 157 static int 158 nv04_instmem_oneinit(struct nvkm_instmem *base) 159 { 160 struct nv04_instmem *imem = nv04_instmem(base); 161 struct nvkm_device *device = imem->base.subdev.device; 162 int ret; 163 164 /* PRAMIN aperture maps over the end of VRAM, reserve it */ 165 imem->base.reserved = 512 * 1024; 166 167 ret = nvkm_mm_init(&imem->heap, 0, 0, imem->base.reserved, 1); 168 if (ret) 169 return ret; 170 171 /* 0x00000-0x10000: reserve for probable vbios image */ 172 ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x10000, 0, false, 173 &imem->base.vbios); 174 if (ret) 175 return ret; 176 177 /* 0x10000-0x18000: reserve for RAMHT */ 178 ret = nvkm_ramht_new(device, 0x08000, 0, NULL, &imem->base.ramht); 179 if (ret) 180 return ret; 181 182 /* 0x18000-0x18800: reserve for RAMFC (enough for 32 nv30 channels) */ 183 ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x00800, 0, true, 184 &imem->base.ramfc); 185 if (ret) 186 return ret; 187 188 /* 0x18800-0x18a00: reserve for RAMRO */ 189 ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x00200, 0, false, 190 &imem->base.ramro); 191 if (ret) 192 return ret; 193 194 return 0; 195 } 196 197 static void * 198 nv04_instmem_dtor(struct nvkm_instmem *base) 199 { 200 struct nv04_instmem *imem = nv04_instmem(base); 201 nvkm_memory_unref(&imem->base.ramfc); 202 nvkm_memory_unref(&imem->base.ramro); 203 nvkm_ramht_del(&imem->base.ramht); 204 nvkm_memory_unref(&imem->base.vbios); 205 nvkm_mm_fini(&imem->heap); 206 return imem; 207 } 208 209 static const struct nvkm_instmem_func 210 nv04_instmem = { 211 .dtor = nv04_instmem_dtor, 212 .oneinit = nv04_instmem_oneinit, 213 .rd32 = nv04_instmem_rd32, 214 .wr32 = nv04_instmem_wr32, 215 .memory_new = nv04_instobj_new, 216 .zero = false, 217 }; 218 219 int 220 nv04_instmem_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 221 struct nvkm_instmem **pimem) 222 { 223 struct nv04_instmem *imem; 224 225 if (!(imem = kzalloc(sizeof(*imem), GFP_KERNEL))) 226 return -ENOMEM; 227 nvkm_instmem_ctor(&nv04_instmem, device, type, inst, &imem->base); 228 *pimem = &imem->base; 229 return 0; 230 } 231