Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 1 | #include "drmP.h" |
| 2 | #include "nouveau_drv.h" |
| 3 | #include <linux/pagemap.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 4 | #include <linux/slab.h> |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 5 | |
| 6 | #define NV_CTXDMA_PAGE_SHIFT 12 |
| 7 | #define NV_CTXDMA_PAGE_SIZE (1 << NV_CTXDMA_PAGE_SHIFT) |
| 8 | #define NV_CTXDMA_PAGE_MASK (NV_CTXDMA_PAGE_SIZE - 1) |
| 9 | |
| 10 | struct nouveau_sgdma_be { |
| 11 | struct ttm_backend backend; |
| 12 | struct drm_device *dev; |
| 13 | |
| 14 | dma_addr_t *pages; |
| 15 | unsigned nr_pages; |
Ben Skeggs | a0d9a8f | 2011-08-30 14:30:11 +1000 | [diff] [blame] | 16 | bool unmap_pages; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 17 | |
Ben Skeggs | b571fe2 | 2010-11-16 10:13:05 +1000 | [diff] [blame] | 18 | u64 offset; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 19 | bool bound; |
| 20 | }; |
| 21 | |
| 22 | static int |
| 23 | nouveau_sgdma_populate(struct ttm_backend *be, unsigned long num_pages, |
Konrad Rzeszutek Wilk | 27e8b23 | 2010-12-02 10:24:13 -0500 | [diff] [blame] | 24 | struct page **pages, struct page *dummy_read_page, |
| 25 | dma_addr_t *dma_addrs) |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 26 | { |
| 27 | struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be; |
| 28 | struct drm_device *dev = nvbe->dev; |
Ben Skeggs | a0d9a8f | 2011-08-30 14:30:11 +1000 | [diff] [blame] | 29 | int i; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 30 | |
| 31 | NV_DEBUG(nvbe->dev, "num_pages = %ld\n", num_pages); |
| 32 | |
Ben Skeggs | a0d9a8f | 2011-08-30 14:30:11 +1000 | [diff] [blame] | 33 | nvbe->pages = dma_addrs; |
| 34 | nvbe->nr_pages = num_pages; |
| 35 | nvbe->unmap_pages = true; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 36 | |
Ben Skeggs | a0d9a8f | 2011-08-30 14:30:11 +1000 | [diff] [blame] | 37 | /* this code path isn't called and is incorrect anyways */ |
| 38 | if (0) { /* dma_addrs[0] != DMA_ERROR_CODE) { */ |
| 39 | nvbe->unmap_pages = false; |
| 40 | return 0; |
Marcin Slusarz | 17c8b96 | 2011-08-22 23:14:05 +0200 | [diff] [blame] | 41 | } |
Konrad Rzeszutek Wilk | e0138c2 | 2010-12-02 11:36:24 -0500 | [diff] [blame] | 42 | |
Ben Skeggs | a0d9a8f | 2011-08-30 14:30:11 +1000 | [diff] [blame] | 43 | for (i = 0; i < num_pages; i++) { |
| 44 | nvbe->pages[i] = pci_map_page(dev->pdev, pages[i], 0, |
| 45 | PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); |
| 46 | if (pci_dma_mapping_error(dev->pdev, nvbe->pages[i])) { |
| 47 | nvbe->nr_pages = --i; |
| 48 | be->func->clear(be); |
| 49 | return -EFAULT; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 50 | } |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 51 | } |
| 52 | |
| 53 | return 0; |
| 54 | } |
| 55 | |
| 56 | static void |
| 57 | nouveau_sgdma_clear(struct ttm_backend *be) |
| 58 | { |
| 59 | struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be; |
Ben Skeggs | a0d9a8f | 2011-08-30 14:30:11 +1000 | [diff] [blame] | 60 | struct drm_device *dev = nvbe->dev; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 61 | |
Ben Skeggs | a0d9a8f | 2011-08-30 14:30:11 +1000 | [diff] [blame] | 62 | if (nvbe->bound) |
| 63 | be->func->unbind(be); |
Marcin Slusarz | dd19e44 | 2010-01-30 15:41:00 +0100 | [diff] [blame] | 64 | |
Ben Skeggs | a0d9a8f | 2011-08-30 14:30:11 +1000 | [diff] [blame] | 65 | if (nvbe->unmap_pages) { |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 66 | while (nvbe->nr_pages--) { |
Ben Skeggs | a0d9a8f | 2011-08-30 14:30:11 +1000 | [diff] [blame] | 67 | pci_unmap_page(dev->pdev, nvbe->pages[nvbe->nr_pages], |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 68 | PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); |
| 69 | } |
Ben Skeggs | a10e9e1 | 2011-11-25 16:35:34 +1000 | [diff] [blame] | 70 | nvbe->unmap_pages = false; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 71 | } |
Ben Skeggs | a10e9e1 | 2011-11-25 16:35:34 +1000 | [diff] [blame] | 72 | |
| 73 | nvbe->pages = NULL; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 74 | } |
| 75 | |
Ben Skeggs | efa58db | 2011-01-10 16:24:00 +1000 | [diff] [blame] | 76 | static void |
| 77 | nouveau_sgdma_destroy(struct ttm_backend *be) |
| 78 | { |
| 79 | struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be; |
| 80 | |
| 81 | if (be) { |
| 82 | NV_DEBUG(nvbe->dev, "\n"); |
| 83 | |
| 84 | if (nvbe) { |
| 85 | if (nvbe->pages) |
| 86 | be->func->clear(be); |
| 87 | kfree(nvbe); |
| 88 | } |
| 89 | } |
| 90 | } |
| 91 | |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 92 | static int |
Ben Skeggs | efa58db | 2011-01-10 16:24:00 +1000 | [diff] [blame] | 93 | nv04_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem) |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 94 | { |
| 95 | struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be; |
| 96 | struct drm_device *dev = nvbe->dev; |
| 97 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
| 98 | struct nouveau_gpuobj *gpuobj = dev_priv->gart_info.sg_ctxdma; |
| 99 | unsigned i, j, pte; |
| 100 | |
Ben Skeggs | d961db7 | 2010-08-05 10:48:18 +1000 | [diff] [blame] | 101 | NV_DEBUG(dev, "pg=0x%lx\n", mem->start); |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 102 | |
Ben Skeggs | b571fe2 | 2010-11-16 10:13:05 +1000 | [diff] [blame] | 103 | nvbe->offset = mem->start << PAGE_SHIFT; |
| 104 | pte = (nvbe->offset >> NV_CTXDMA_PAGE_SHIFT) + 2; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 105 | for (i = 0; i < nvbe->nr_pages; i++) { |
| 106 | dma_addr_t dma_offset = nvbe->pages[i]; |
| 107 | uint32_t offset_l = lower_32_bits(dma_offset); |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 108 | |
Ben Skeggs | b571fe2 | 2010-11-16 10:13:05 +1000 | [diff] [blame] | 109 | for (j = 0; j < PAGE_SIZE / NV_CTXDMA_PAGE_SIZE; j++, pte++) { |
| 110 | nv_wo32(gpuobj, (pte * 4) + 0, offset_l | 3); |
Marcin Slusarz | 1bf2706 | 2011-08-22 23:22:13 +0200 | [diff] [blame] | 111 | offset_l += NV_CTXDMA_PAGE_SIZE; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 112 | } |
| 113 | } |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 114 | |
| 115 | nvbe->bound = true; |
| 116 | return 0; |
| 117 | } |
| 118 | |
| 119 | static int |
Ben Skeggs | efa58db | 2011-01-10 16:24:00 +1000 | [diff] [blame] | 120 | nv04_sgdma_unbind(struct ttm_backend *be) |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 121 | { |
| 122 | struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be; |
| 123 | struct drm_device *dev = nvbe->dev; |
| 124 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
| 125 | struct nouveau_gpuobj *gpuobj = dev_priv->gart_info.sg_ctxdma; |
| 126 | unsigned i, j, pte; |
| 127 | |
| 128 | NV_DEBUG(dev, "\n"); |
| 129 | |
| 130 | if (!nvbe->bound) |
| 131 | return 0; |
| 132 | |
Ben Skeggs | b571fe2 | 2010-11-16 10:13:05 +1000 | [diff] [blame] | 133 | pte = (nvbe->offset >> NV_CTXDMA_PAGE_SHIFT) + 2; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 134 | for (i = 0; i < nvbe->nr_pages; i++) { |
Ben Skeggs | b571fe2 | 2010-11-16 10:13:05 +1000 | [diff] [blame] | 135 | for (j = 0; j < PAGE_SIZE / NV_CTXDMA_PAGE_SIZE; j++, pte++) |
| 136 | nv_wo32(gpuobj, (pte * 4) + 0, 0x00000000); |
Ben Skeggs | 40b2a68 | 2010-03-15 16:43:47 +1000 | [diff] [blame] | 137 | } |
| 138 | |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 139 | nvbe->bound = false; |
| 140 | return 0; |
| 141 | } |
| 142 | |
Ben Skeggs | efa58db | 2011-01-10 16:24:00 +1000 | [diff] [blame] | 143 | static struct ttm_backend_func nv04_sgdma_backend = { |
| 144 | .populate = nouveau_sgdma_populate, |
| 145 | .clear = nouveau_sgdma_clear, |
| 146 | .bind = nv04_sgdma_bind, |
| 147 | .unbind = nv04_sgdma_unbind, |
| 148 | .destroy = nouveau_sgdma_destroy |
| 149 | }; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 150 | |
Ben Skeggs | 7948758 | 2011-01-11 14:52:40 +1000 | [diff] [blame] | 151 | static void |
| 152 | nv41_sgdma_flush(struct nouveau_sgdma_be *nvbe) |
| 153 | { |
| 154 | struct drm_device *dev = nvbe->dev; |
| 155 | |
| 156 | nv_wr32(dev, 0x100810, 0x00000022); |
| 157 | if (!nv_wait(dev, 0x100810, 0x00000100, 0x00000100)) |
| 158 | NV_ERROR(dev, "vm flush timeout: 0x%08x\n", |
| 159 | nv_rd32(dev, 0x100810)); |
| 160 | nv_wr32(dev, 0x100810, 0x00000000); |
| 161 | } |
| 162 | |
| 163 | static int |
| 164 | nv41_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem) |
| 165 | { |
| 166 | struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be; |
| 167 | struct drm_nouveau_private *dev_priv = nvbe->dev->dev_private; |
| 168 | struct nouveau_gpuobj *pgt = dev_priv->gart_info.sg_ctxdma; |
| 169 | dma_addr_t *list = nvbe->pages; |
| 170 | u32 pte = mem->start << 2; |
| 171 | u32 cnt = nvbe->nr_pages; |
| 172 | |
| 173 | nvbe->offset = mem->start << PAGE_SHIFT; |
| 174 | |
| 175 | while (cnt--) { |
| 176 | nv_wo32(pgt, pte, (*list++ >> 7) | 1); |
| 177 | pte += 4; |
| 178 | } |
| 179 | |
| 180 | nv41_sgdma_flush(nvbe); |
| 181 | nvbe->bound = true; |
| 182 | return 0; |
| 183 | } |
| 184 | |
| 185 | static int |
| 186 | nv41_sgdma_unbind(struct ttm_backend *be) |
| 187 | { |
| 188 | struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be; |
| 189 | struct drm_nouveau_private *dev_priv = nvbe->dev->dev_private; |
| 190 | struct nouveau_gpuobj *pgt = dev_priv->gart_info.sg_ctxdma; |
| 191 | u32 pte = (nvbe->offset >> 12) << 2; |
| 192 | u32 cnt = nvbe->nr_pages; |
| 193 | |
| 194 | while (cnt--) { |
| 195 | nv_wo32(pgt, pte, 0x00000000); |
| 196 | pte += 4; |
| 197 | } |
| 198 | |
| 199 | nv41_sgdma_flush(nvbe); |
| 200 | nvbe->bound = false; |
| 201 | return 0; |
| 202 | } |
| 203 | |
| 204 | static struct ttm_backend_func nv41_sgdma_backend = { |
| 205 | .populate = nouveau_sgdma_populate, |
| 206 | .clear = nouveau_sgdma_clear, |
| 207 | .bind = nv41_sgdma_bind, |
| 208 | .unbind = nv41_sgdma_unbind, |
| 209 | .destroy = nouveau_sgdma_destroy |
| 210 | }; |
| 211 | |
| 212 | static void |
| 213 | nv44_sgdma_flush(struct nouveau_sgdma_be *nvbe) |
| 214 | { |
| 215 | struct drm_device *dev = nvbe->dev; |
| 216 | |
| 217 | nv_wr32(dev, 0x100814, (nvbe->nr_pages - 1) << 12); |
| 218 | nv_wr32(dev, 0x100808, nvbe->offset | 0x20); |
| 219 | if (!nv_wait(dev, 0x100808, 0x00000001, 0x00000001)) |
| 220 | NV_ERROR(dev, "gart flush timeout: 0x%08x\n", |
| 221 | nv_rd32(dev, 0x100808)); |
| 222 | nv_wr32(dev, 0x100808, 0x00000000); |
| 223 | } |
| 224 | |
| 225 | static void |
| 226 | nv44_sgdma_fill(struct nouveau_gpuobj *pgt, dma_addr_t *list, u32 base, u32 cnt) |
| 227 | { |
| 228 | struct drm_nouveau_private *dev_priv = pgt->dev->dev_private; |
| 229 | dma_addr_t dummy = dev_priv->gart_info.dummy.addr; |
| 230 | u32 pte, tmp[4]; |
| 231 | |
| 232 | pte = base >> 2; |
| 233 | base &= ~0x0000000f; |
| 234 | |
| 235 | tmp[0] = nv_ro32(pgt, base + 0x0); |
| 236 | tmp[1] = nv_ro32(pgt, base + 0x4); |
| 237 | tmp[2] = nv_ro32(pgt, base + 0x8); |
| 238 | tmp[3] = nv_ro32(pgt, base + 0xc); |
| 239 | while (cnt--) { |
| 240 | u32 addr = list ? (*list++ >> 12) : (dummy >> 12); |
| 241 | switch (pte++ & 0x3) { |
| 242 | case 0: |
| 243 | tmp[0] &= ~0x07ffffff; |
| 244 | tmp[0] |= addr; |
| 245 | break; |
| 246 | case 1: |
| 247 | tmp[0] &= ~0xf8000000; |
| 248 | tmp[0] |= addr << 27; |
| 249 | tmp[1] &= ~0x003fffff; |
| 250 | tmp[1] |= addr >> 5; |
| 251 | break; |
| 252 | case 2: |
| 253 | tmp[1] &= ~0xffc00000; |
| 254 | tmp[1] |= addr << 22; |
| 255 | tmp[2] &= ~0x0001ffff; |
| 256 | tmp[2] |= addr >> 10; |
| 257 | break; |
| 258 | case 3: |
| 259 | tmp[2] &= ~0xfffe0000; |
| 260 | tmp[2] |= addr << 17; |
| 261 | tmp[3] &= ~0x00000fff; |
| 262 | tmp[3] |= addr >> 15; |
| 263 | break; |
| 264 | } |
| 265 | } |
| 266 | |
| 267 | tmp[3] |= 0x40000000; |
| 268 | |
| 269 | nv_wo32(pgt, base + 0x0, tmp[0]); |
| 270 | nv_wo32(pgt, base + 0x4, tmp[1]); |
| 271 | nv_wo32(pgt, base + 0x8, tmp[2]); |
| 272 | nv_wo32(pgt, base + 0xc, tmp[3]); |
| 273 | } |
| 274 | |
| 275 | static int |
| 276 | nv44_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem) |
| 277 | { |
| 278 | struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be; |
| 279 | struct drm_nouveau_private *dev_priv = nvbe->dev->dev_private; |
| 280 | struct nouveau_gpuobj *pgt = dev_priv->gart_info.sg_ctxdma; |
| 281 | dma_addr_t *list = nvbe->pages; |
| 282 | u32 pte = mem->start << 2, tmp[4]; |
| 283 | u32 cnt = nvbe->nr_pages; |
| 284 | int i; |
| 285 | |
| 286 | nvbe->offset = mem->start << PAGE_SHIFT; |
| 287 | |
| 288 | if (pte & 0x0000000c) { |
| 289 | u32 max = 4 - ((pte >> 2) & 0x3); |
| 290 | u32 part = (cnt > max) ? max : cnt; |
| 291 | nv44_sgdma_fill(pgt, list, pte, part); |
| 292 | pte += (part << 2); |
| 293 | list += part; |
| 294 | cnt -= part; |
| 295 | } |
| 296 | |
| 297 | while (cnt >= 4) { |
| 298 | for (i = 0; i < 4; i++) |
| 299 | tmp[i] = *list++ >> 12; |
| 300 | nv_wo32(pgt, pte + 0x0, tmp[0] >> 0 | tmp[1] << 27); |
| 301 | nv_wo32(pgt, pte + 0x4, tmp[1] >> 5 | tmp[2] << 22); |
| 302 | nv_wo32(pgt, pte + 0x8, tmp[2] >> 10 | tmp[3] << 17); |
| 303 | nv_wo32(pgt, pte + 0xc, tmp[3] >> 15 | 0x40000000); |
| 304 | pte += 0x10; |
| 305 | cnt -= 4; |
| 306 | } |
| 307 | |
| 308 | if (cnt) |
| 309 | nv44_sgdma_fill(pgt, list, pte, cnt); |
| 310 | |
| 311 | nv44_sgdma_flush(nvbe); |
| 312 | nvbe->bound = true; |
| 313 | return 0; |
| 314 | } |
| 315 | |
| 316 | static int |
| 317 | nv44_sgdma_unbind(struct ttm_backend *be) |
| 318 | { |
| 319 | struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be; |
| 320 | struct drm_nouveau_private *dev_priv = nvbe->dev->dev_private; |
| 321 | struct nouveau_gpuobj *pgt = dev_priv->gart_info.sg_ctxdma; |
| 322 | u32 pte = (nvbe->offset >> 12) << 2; |
| 323 | u32 cnt = nvbe->nr_pages; |
| 324 | |
| 325 | if (pte & 0x0000000c) { |
| 326 | u32 max = 4 - ((pte >> 2) & 0x3); |
| 327 | u32 part = (cnt > max) ? max : cnt; |
| 328 | nv44_sgdma_fill(pgt, NULL, pte, part); |
| 329 | pte += (part << 2); |
| 330 | cnt -= part; |
| 331 | } |
| 332 | |
| 333 | while (cnt >= 4) { |
| 334 | nv_wo32(pgt, pte + 0x0, 0x00000000); |
| 335 | nv_wo32(pgt, pte + 0x4, 0x00000000); |
| 336 | nv_wo32(pgt, pte + 0x8, 0x00000000); |
| 337 | nv_wo32(pgt, pte + 0xc, 0x00000000); |
| 338 | pte += 0x10; |
| 339 | cnt -= 4; |
| 340 | } |
| 341 | |
| 342 | if (cnt) |
| 343 | nv44_sgdma_fill(pgt, NULL, pte, cnt); |
| 344 | |
| 345 | nv44_sgdma_flush(nvbe); |
| 346 | nvbe->bound = false; |
| 347 | return 0; |
| 348 | } |
| 349 | |
| 350 | static struct ttm_backend_func nv44_sgdma_backend = { |
| 351 | .populate = nouveau_sgdma_populate, |
| 352 | .clear = nouveau_sgdma_clear, |
| 353 | .bind = nv44_sgdma_bind, |
| 354 | .unbind = nv44_sgdma_unbind, |
| 355 | .destroy = nouveau_sgdma_destroy |
| 356 | }; |
| 357 | |
Ben Skeggs | b571fe2 | 2010-11-16 10:13:05 +1000 | [diff] [blame] | 358 | static int |
| 359 | nv50_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem) |
| 360 | { |
| 361 | struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be; |
Ben Skeggs | 26c0c9e | 2011-02-10 12:59:51 +1000 | [diff] [blame] | 362 | struct nouveau_mem *node = mem->mm_node; |
| 363 | /* noop: bound in move_notify() */ |
| 364 | node->pages = nvbe->pages; |
| 365 | nvbe->pages = (dma_addr_t *)node; |
Ben Skeggs | b571fe2 | 2010-11-16 10:13:05 +1000 | [diff] [blame] | 366 | nvbe->bound = true; |
| 367 | return 0; |
| 368 | } |
| 369 | |
| 370 | static int |
| 371 | nv50_sgdma_unbind(struct ttm_backend *be) |
| 372 | { |
| 373 | struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be; |
Ben Skeggs | 26c0c9e | 2011-02-10 12:59:51 +1000 | [diff] [blame] | 374 | struct nouveau_mem *node = (struct nouveau_mem *)nvbe->pages; |
| 375 | /* noop: unbound in move_notify() */ |
| 376 | nvbe->pages = node->pages; |
| 377 | node->pages = NULL; |
Ben Skeggs | b571fe2 | 2010-11-16 10:13:05 +1000 | [diff] [blame] | 378 | nvbe->bound = false; |
| 379 | return 0; |
| 380 | } |
| 381 | |
Ben Skeggs | b571fe2 | 2010-11-16 10:13:05 +1000 | [diff] [blame] | 382 | static struct ttm_backend_func nv50_sgdma_backend = { |
| 383 | .populate = nouveau_sgdma_populate, |
| 384 | .clear = nouveau_sgdma_clear, |
| 385 | .bind = nv50_sgdma_bind, |
| 386 | .unbind = nv50_sgdma_unbind, |
| 387 | .destroy = nouveau_sgdma_destroy |
| 388 | }; |
| 389 | |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 390 | struct ttm_backend * |
| 391 | nouveau_sgdma_init_ttm(struct drm_device *dev) |
| 392 | { |
| 393 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
| 394 | struct nouveau_sgdma_be *nvbe; |
| 395 | |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 396 | nvbe = kzalloc(sizeof(*nvbe), GFP_KERNEL); |
| 397 | if (!nvbe) |
| 398 | return NULL; |
| 399 | |
| 400 | nvbe->dev = dev; |
| 401 | |
Ben Skeggs | 7948758 | 2011-01-11 14:52:40 +1000 | [diff] [blame] | 402 | nvbe->backend.func = dev_priv->gart_info.func; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 403 | return &nvbe->backend; |
| 404 | } |
| 405 | |
| 406 | int |
| 407 | nouveau_sgdma_init(struct drm_device *dev) |
| 408 | { |
| 409 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
| 410 | struct nouveau_gpuobj *gpuobj = NULL; |
Ben Skeggs | 7948758 | 2011-01-11 14:52:40 +1000 | [diff] [blame] | 411 | u32 aper_size, align; |
| 412 | int ret; |
| 413 | |
Jon Mason | 58b6542 | 2011-06-27 16:07:50 +0000 | [diff] [blame] | 414 | if (dev_priv->card_type >= NV_40 && pci_is_pcie(dev->pdev)) |
Ben Skeggs | 7948758 | 2011-01-11 14:52:40 +1000 | [diff] [blame] | 415 | aper_size = 512 * 1024 * 1024; |
| 416 | else |
| 417 | aper_size = 64 * 1024 * 1024; |
| 418 | |
| 419 | /* Dear NVIDIA, NV44+ would like proper present bits in PTEs for |
| 420 | * christmas. The cards before it have them, the cards after |
| 421 | * it have them, why is NV44 so unloved? |
| 422 | */ |
| 423 | dev_priv->gart_info.dummy.page = alloc_page(GFP_DMA32 | GFP_KERNEL); |
| 424 | if (!dev_priv->gart_info.dummy.page) |
| 425 | return -ENOMEM; |
| 426 | |
| 427 | dev_priv->gart_info.dummy.addr = |
| 428 | pci_map_page(dev->pdev, dev_priv->gart_info.dummy.page, |
| 429 | 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); |
| 430 | if (pci_dma_mapping_error(dev->pdev, dev_priv->gart_info.dummy.addr)) { |
| 431 | NV_ERROR(dev, "error mapping dummy page\n"); |
| 432 | __free_page(dev_priv->gart_info.dummy.page); |
| 433 | dev_priv->gart_info.dummy.page = NULL; |
| 434 | return -ENOMEM; |
| 435 | } |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 436 | |
Ben Skeggs | efa58db | 2011-01-10 16:24:00 +1000 | [diff] [blame] | 437 | if (dev_priv->card_type >= NV_50) { |
Ben Skeggs | 26c0c9e | 2011-02-10 12:59:51 +1000 | [diff] [blame] | 438 | dev_priv->gart_info.aper_base = 0; |
Ben Skeggs | 7948758 | 2011-01-11 14:52:40 +1000 | [diff] [blame] | 439 | dev_priv->gart_info.aper_size = aper_size; |
| 440 | dev_priv->gart_info.type = NOUVEAU_GART_HW; |
| 441 | dev_priv->gart_info.func = &nv50_sgdma_backend; |
| 442 | } else |
Jon Mason | 58b6542 | 2011-06-27 16:07:50 +0000 | [diff] [blame] | 443 | if (0 && pci_is_pcie(dev->pdev) && |
Ben Skeggs | 01d1533 | 2011-04-08 10:07:34 +1000 | [diff] [blame] | 444 | dev_priv->chipset > 0x40 && dev_priv->chipset != 0x45) { |
Ben Skeggs | 7948758 | 2011-01-11 14:52:40 +1000 | [diff] [blame] | 445 | if (nv44_graph_class(dev)) { |
| 446 | dev_priv->gart_info.func = &nv44_sgdma_backend; |
| 447 | align = 512 * 1024; |
| 448 | } else { |
| 449 | dev_priv->gart_info.func = &nv41_sgdma_backend; |
| 450 | align = 16; |
| 451 | } |
| 452 | |
| 453 | ret = nouveau_gpuobj_new(dev, NULL, aper_size / 1024, align, |
| 454 | NVOBJ_FLAG_ZERO_ALLOC | |
| 455 | NVOBJ_FLAG_ZERO_FREE, &gpuobj); |
| 456 | if (ret) { |
| 457 | NV_ERROR(dev, "Error creating sgdma object: %d\n", ret); |
| 458 | return ret; |
| 459 | } |
| 460 | |
| 461 | dev_priv->gart_info.sg_ctxdma = gpuobj; |
| 462 | dev_priv->gart_info.aper_base = 0; |
| 463 | dev_priv->gart_info.aper_size = aper_size; |
Ben Skeggs | 58e6c7a | 2011-01-11 14:10:09 +1000 | [diff] [blame] | 464 | dev_priv->gart_info.type = NOUVEAU_GART_HW; |
Ben Skeggs | efa58db | 2011-01-10 16:24:00 +1000 | [diff] [blame] | 465 | } else { |
Ben Skeggs | 7948758 | 2011-01-11 14:52:40 +1000 | [diff] [blame] | 466 | ret = nouveau_gpuobj_new(dev, NULL, (aper_size / 1024) + 8, 16, |
| 467 | NVOBJ_FLAG_ZERO_ALLOC | |
| 468 | NVOBJ_FLAG_ZERO_FREE, &gpuobj); |
Ben Skeggs | b571fe2 | 2010-11-16 10:13:05 +1000 | [diff] [blame] | 469 | if (ret) { |
| 470 | NV_ERROR(dev, "Error creating sgdma object: %d\n", ret); |
| 471 | return ret; |
| 472 | } |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 473 | |
Ben Skeggs | b3beb16 | 2010-09-01 15:24:29 +1000 | [diff] [blame] | 474 | nv_wo32(gpuobj, 0, NV_CLASS_DMA_IN_MEMORY | |
| 475 | (1 << 12) /* PT present */ | |
| 476 | (0 << 13) /* PT *not* linear */ | |
Ben Skeggs | 7f4a195 | 2010-11-16 11:50:09 +1000 | [diff] [blame] | 477 | (0 << 14) /* RW */ | |
| 478 | (2 << 16) /* PCI */); |
Ben Skeggs | b3beb16 | 2010-09-01 15:24:29 +1000 | [diff] [blame] | 479 | nv_wo32(gpuobj, 4, aper_size - 1); |
Ben Skeggs | b571fe2 | 2010-11-16 10:13:05 +1000 | [diff] [blame] | 480 | |
| 481 | dev_priv->gart_info.sg_ctxdma = gpuobj; |
| 482 | dev_priv->gart_info.aper_base = 0; |
| 483 | dev_priv->gart_info.aper_size = aper_size; |
Ben Skeggs | 58e6c7a | 2011-01-11 14:10:09 +1000 | [diff] [blame] | 484 | dev_priv->gart_info.type = NOUVEAU_GART_PDMA; |
Ben Skeggs | 7948758 | 2011-01-11 14:52:40 +1000 | [diff] [blame] | 485 | dev_priv->gart_info.func = &nv04_sgdma_backend; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 486 | } |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 487 | |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 488 | return 0; |
| 489 | } |
| 490 | |
| 491 | void |
| 492 | nouveau_sgdma_takedown(struct drm_device *dev) |
| 493 | { |
| 494 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
| 495 | |
Ben Skeggs | a8eaebc | 2010-09-01 15:24:31 +1000 | [diff] [blame] | 496 | nouveau_gpuobj_ref(NULL, &dev_priv->gart_info.sg_ctxdma); |
Ben Skeggs | 7948758 | 2011-01-11 14:52:40 +1000 | [diff] [blame] | 497 | |
| 498 | if (dev_priv->gart_info.dummy.page) { |
| 499 | pci_unmap_page(dev->pdev, dev_priv->gart_info.dummy.addr, |
| 500 | PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); |
| 501 | __free_page(dev_priv->gart_info.dummy.page); |
| 502 | dev_priv->gart_info.dummy.page = NULL; |
| 503 | } |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 504 | } |
| 505 | |
Francisco Jerez | fd70b6c | 2010-12-08 02:37:12 +0100 | [diff] [blame] | 506 | uint32_t |
| 507 | nouveau_sgdma_get_physical(struct drm_device *dev, uint32_t offset) |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 508 | { |
| 509 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
| 510 | struct nouveau_gpuobj *gpuobj = dev_priv->gart_info.sg_ctxdma; |
Francisco Jerez | fd70b6c | 2010-12-08 02:37:12 +0100 | [diff] [blame] | 511 | int pte = (offset >> NV_CTXDMA_PAGE_SHIFT) + 2; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 512 | |
Francisco Jerez | fd70b6c | 2010-12-08 02:37:12 +0100 | [diff] [blame] | 513 | BUG_ON(dev_priv->card_type >= NV_50); |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 514 | |
Francisco Jerez | fd70b6c | 2010-12-08 02:37:12 +0100 | [diff] [blame] | 515 | return (nv_ro32(gpuobj, 4 * pte) & ~NV_CTXDMA_PAGE_MASK) | |
| 516 | (offset & NV_CTXDMA_PAGE_MASK); |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 517 | } |