src/gallium/drivers/nouveau/nv30/nv30_screen.c

   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 AUTHORS OR COPYRIGHT HOLDERS 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
  26 #include <xf86drm.h>
  27 #include <nouveau_drm.h>
  28 #include "util/u_format.h"
  29 #include "util/u_format_s3tc.h"
  30
  31 #include "nv_object.xml.h"
  32 #include "nv_m2mf.xml.h"
  33 #include "nv30/nv30-40_3d.xml.h"
  34 #include "nv30/nv01_2d.xml.h"
  35
  36 #include "nouveau_fence.h"
  37 #include "nv30/nv30_screen.h"
  38 #include "nv30/nv30_context.h"
  39 #include "nv30/nv30_resource.h"
  40 #include "nv30/nv30_format.h"
  41
  42 #define RANKINE_0397_CHIPSET 0x00000003
  43 #define RANKINE_0497_CHIPSET 0x000001e0
  44 #define RANKINE_0697_CHIPSET 0x00000010
  45 #define CURIE_4097_CHIPSET   0x00000baf
  46 #define CURIE_4497_CHIPSET   0x00005450
  47 #define CURIE_4497_CHIPSET6X 0x00000088
  48
  49 static int
  50 nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
  51 {
  52    struct nv30_screen *screen = nv30_screen(pscreen);
  53    struct nouveau_object *eng3d = screen->eng3d;
  54    struct nouveau_device *dev = nouveau_screen(pscreen)->device;
  55
  56    switch (param) {
  57    /* non-boolean capabilities */
  58    case PIPE_CAP_MAX_RENDER_TARGETS:
  59       return (eng3d->oclass >= NV40_3D_CLASS) ? 4 : 1;
  60    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
  61       return 13;
  62    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
  63       return 10;
  64    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
  65       return 13;
  66    case PIPE_CAP_GLSL_FEATURE_LEVEL:
  67       return 120;
  68    case PIPE_CAP_ENDIANNESS:
  69       return PIPE_ENDIAN_LITTLE;
  70    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
  71       return 16;
  72    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
  73       return NOUVEAU_MIN_BUFFER_MAP_ALIGN;
  74    case PIPE_CAP_MAX_VIEWPORTS:
  75       return 1;
  76    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
  77       return 2048;
  78    /* supported capabilities */
  79    case PIPE_CAP_TWO_SIDED_STENCIL:
  80    case PIPE_CAP_ANISOTROPIC_FILTER:
  81    case PIPE_CAP_POINT_SPRITE:
  82    case PIPE_CAP_OCCLUSION_QUERY:
  83    case PIPE_CAP_QUERY_TIME_ELAPSED:
  84    case PIPE_CAP_QUERY_TIMESTAMP:
  85    case PIPE_CAP_TEXTURE_SHADOW_MAP:
  86    case PIPE_CAP_TEXTURE_SWIZZLE:
  87    case PIPE_CAP_DEPTH_CLIP_DISABLE:
  88    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
  89    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
  90    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
  91    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
  92    case PIPE_CAP_TGSI_TEXCOORD:
  93    case PIPE_CAP_USER_CONSTANT_BUFFERS:
  94    case PIPE_CAP_USER_INDEX_BUFFERS:
  95    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
  96    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
  97    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
  98    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
  99    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 100       return 1;
 101    /* nv35 capabilities */
 102    case PIPE_CAP_DEPTH_BOUNDS_TEST:
 103       return eng3d->oclass == NV35_3D_CLASS || eng3d->oclass >= NV40_3D_CLASS;
 104    /* nv4x capabilities */
 105    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 106    case PIPE_CAP_NPOT_TEXTURES:
 107    case PIPE_CAP_CONDITIONAL_RENDER:
 108    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 109    case PIPE_CAP_PRIMITIVE_RESTART:
 110       return (eng3d->oclass >= NV40_3D_CLASS) ? 1 : 0;
 111    /* unsupported */
 112    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 113    case PIPE_CAP_SM3:
 114    case PIPE_CAP_INDEP_BLEND_ENABLE:
 115    case PIPE_CAP_INDEP_BLEND_FUNC:
 116    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 117    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 118    case PIPE_CAP_TGSI_INSTANCEID:
 119    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR: /* XXX: yes? */
 120    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 121    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 122    case PIPE_CAP_MIN_TEXEL_OFFSET:
 123    case PIPE_CAP_MAX_TEXEL_OFFSET:
 124    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 125    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 126    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 127    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 128    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 129    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 130    case PIPE_CAP_MAX_VERTEX_STREAMS:
 131    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 132    case PIPE_CAP_TEXTURE_BARRIER:
 133    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 134    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 135    case PIPE_CAP_CUBE_MAP_ARRAY:
 136    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 137    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 138    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 139    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 140    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 141    case PIPE_CAP_START_INSTANCE:
 142    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 143    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 144    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 145    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 146    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 147    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 148    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 149    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 150    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 151    case PIPE_CAP_TEXTURE_GATHER_SM5:
 152    case PIPE_CAP_FAKE_SW_MSAA:
 153    case PIPE_CAP_TEXTURE_QUERY_LOD:
 154    case PIPE_CAP_SAMPLE_SHADING:
 155    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 156    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 157    case PIPE_CAP_USER_VERTEX_BUFFERS:
 158    case PIPE_CAP_COMPUTE:
 159    case PIPE_CAP_DRAW_INDIRECT:
 160    case PIPE_CAP_MULTI_DRAW_INDIRECT:
 161    case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 162    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 163    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 164    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 165    case PIPE_CAP_CLIP_HALFZ:
 166    case PIPE_CAP_VERTEXID_NOBASE:
 167    case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 168    case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 169    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 170    case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 171    case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 172    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 173    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 174    case PIPE_CAP_TGSI_TXQS:
 175    case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 176    case PIPE_CAP_SHAREABLE_SHADERS:
 177    case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 178    case PIPE_CAP_CLEAR_TEXTURE:
 179    case PIPE_CAP_DRAW_PARAMETERS:
 180    case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 181    case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 182    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 183    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 184    case PIPE_CAP_INVALIDATE_BUFFER:
 185    case PIPE_CAP_GENERATE_MIPMAP:
 186    case PIPE_CAP_STRING_MARKER:
 187    case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 188    case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 189    case PIPE_CAP_QUERY_BUFFER_OBJECT:
 190    case PIPE_CAP_QUERY_MEMORY_INFO:
 191    case PIPE_CAP_PCI_GROUP:
 192    case PIPE_CAP_PCI_BUS:
 193    case PIPE_CAP_PCI_DEVICE:
 194    case PIPE_CAP_PCI_FUNCTION:
 195    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 196    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 197    case PIPE_CAP_CULL_DISTANCE:
 198    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 199    case PIPE_CAP_TGSI_VOTE:
 200    case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 201    case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 202       return 0;
 203
 204    case PIPE_CAP_VENDOR_ID:
 205       return 0x10de;
 206    case PIPE_CAP_DEVICE_ID: {
 207       uint64_t device_id;
 208       if (nouveau_getparam(dev, NOUVEAU_GETPARAM_PCI_DEVICE, &device_id)) {
 209          NOUVEAU_ERR("NOUVEAU_GETPARAM_PCI_DEVICE failed.\n");
 210          return -1;
 211       }
 212       return device_id;
 213    }
 214    case PIPE_CAP_ACCELERATED:
 215       return 1;
 216    case PIPE_CAP_VIDEO_MEMORY:
 217       return dev->vram_size >> 20;
 218    case PIPE_CAP_UMA:
 219       return 0;
 220    }
 221
 222    debug_printf("unknown param %d\n", param);
 223    return 0;
 224 }
 225
 226 static float
 227 nv30_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 228 {
 229    struct nv30_screen *screen = nv30_screen(pscreen);
 230    struct nouveau_object *eng3d = screen->eng3d;
 231
 232    switch (param) {
 233    case PIPE_CAPF_MAX_LINE_WIDTH:
 234    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 235       return 10.0;
 236    case PIPE_CAPF_MAX_POINT_WIDTH:
 237    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 238       return 64.0;
 239    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 240       return (eng3d->oclass >= NV40_3D_CLASS) ? 16.0 : 8.0;
 241    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 242       return 15.0;
 243    default:
 244       debug_printf("unknown paramf %d\n", param);
 245       return 0;
 246    }
 247 }
 248
 249 static int
 250 nv30_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 251                              enum pipe_shader_cap param)
 252 {
 253    struct nv30_screen *screen = nv30_screen(pscreen);
 254    struct nouveau_object *eng3d = screen->eng3d;
 255
 256    switch (shader) {
 257    case PIPE_SHADER_VERTEX:
 258       switch (param) {
 259       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 260       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 261          return (eng3d->oclass >= NV40_3D_CLASS) ? 512 : 256;
 262       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 263       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 264          return (eng3d->oclass >= NV40_3D_CLASS) ? 512 : 0;
 265       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 266          return 0;
 267       case PIPE_SHADER_CAP_MAX_INPUTS:
 268       case PIPE_SHADER_CAP_MAX_OUTPUTS:
 269          return 16;
 270       case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 271          return ((eng3d->oclass >= NV40_3D_CLASS) ? (468 - 6): (256 - 6)) * sizeof(float[4]);
 272       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 273          return 1;
 274       case PIPE_SHADER_CAP_MAX_TEMPS:
 275          return (eng3d->oclass >= NV40_3D_CLASS) ? 32 : 13;
 276       case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 277          return 32;
 278       case PIPE_SHADER_CAP_PREFERRED_IR:
 279          return PIPE_SHADER_IR_TGSI;
 280       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 281       case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 282          return 0;
 283       case PIPE_SHADER_CAP_MAX_PREDS:
 284       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 285       case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 286       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 287       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 288       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 289       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 290       case PIPE_SHADER_CAP_SUBROUTINES:
 291       case PIPE_SHADER_CAP_INTEGERS:
 292       case PIPE_SHADER_CAP_DOUBLES:
 293       case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 294       case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 295       case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 296       case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 297       case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 298       case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 299          return 0;
 300       default:
 301          debug_printf("unknown vertex shader param %d\n", param);
 302          return 0;
 303       }
 304       break;
 305    case PIPE_SHADER_FRAGMENT:
 306       switch (param) {
 307       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 308       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 309       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 310       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 311          return 4096;
 312       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 313          return 0;
 314       case PIPE_SHADER_CAP_MAX_INPUTS:
 315          return 8; /* should be possible to do 10 with nv4x */
 316       case PIPE_SHADER_CAP_MAX_OUTPUTS:
 317          return 4;
 318       case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 319          return ((eng3d->oclass >= NV40_3D_CLASS) ? 224 : 32) * sizeof(float[4]);
 320       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 321          return 1;
 322       case PIPE_SHADER_CAP_MAX_TEMPS:
 323          return 32;
 324       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 325       case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 326          return 16;
 327       case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 328          return 32;
 329       case PIPE_SHADER_CAP_PREFERRED_IR:
 330          return PIPE_SHADER_IR_TGSI;
 331       case PIPE_SHADER_CAP_MAX_PREDS:
 332       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 333       case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 334       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 335       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 336       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 337       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 338       case PIPE_SHADER_CAP_SUBROUTINES:
 339       case PIPE_SHADER_CAP_INTEGERS:
 340       case PIPE_SHADER_CAP_DOUBLES:
 341       case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 342       case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 343       case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 344       case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 345       case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 346       case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 347          return 0;
 348       default:
 349          debug_printf("unknown fragment shader param %d\n", param);
 350          return 0;
 351       }
 352       break;
 353    default:
 354       return 0;
 355    }
 356 }
 357
 358 static boolean
 359 nv30_screen_is_format_supported(struct pipe_screen *pscreen,
 360                                 enum pipe_format format,
 361                                 enum pipe_texture_target target,
 362                                 unsigned sample_count,
 363                                 unsigned bindings)
 364 {
 365    if (sample_count > nv30_screen(pscreen)->max_sample_count)
 366       return false;
 367
 368    if (!(0x00000017 & (1 << sample_count)))
 369       return false;
 370
 371    if (!util_format_is_supported(format, bindings)) {
 372       return false;
 373    }
 374
 375    /* transfers & shared are always supported */
 376    bindings &= ~(PIPE_BIND_TRANSFER_READ |
 377                  PIPE_BIND_TRANSFER_WRITE |
 378                  PIPE_BIND_SHARED);
 379
 380    return (nv30_format_info(pscreen, format)->bindings & bindings) == bindings;
 381 }
 382
 383 static void
 384 nv30_screen_fence_emit(struct pipe_screen *pscreen, uint32_t *sequence)
 385 {
 386    struct nv30_screen *screen = nv30_screen(pscreen);
 387    struct nouveau_pushbuf *push = screen->base.pushbuf;
 388
 389    *sequence = ++screen->base.fence.sequence;
 390
 391    assert(PUSH_AVAIL(push) + push->rsvd_kick >= 3);
 392    PUSH_DATA (push, NV30_3D_FENCE_OFFSET |
 393               (2 /* size */ << 18) | (7 /* subchan */ << 13));
 394    PUSH_DATA (push, 0);
 395    PUSH_DATA (push, *sequence);
 396 }
 397
 398 static uint32_t
 399 nv30_screen_fence_update(struct pipe_screen *pscreen)
 400 {
 401    struct nv30_screen *screen = nv30_screen(pscreen);
 402    struct nv04_notify *fence = screen->fence->data;
 403    return *(uint32_t *)((char *)screen->notify->map + fence->offset);
 404 }
 405
 406 static void
 407 nv30_screen_destroy(struct pipe_screen *pscreen)
 408 {
 409    struct nv30_screen *screen = nv30_screen(pscreen);
 410
 411    if (!nouveau_drm_screen_unref(&screen->base))
 412       return;
 413
 414    if (screen->base.fence.current) {
 415       struct nouveau_fence *current = NULL;
 416
 417       /* nouveau_fence_wait will create a new current fence, so wait on the
 418        * _current_ one, and remove both.
 419        */
 420       nouveau_fence_ref(screen->base.fence.current, &current);
 421       nouveau_fence_wait(current, NULL);
 422       nouveau_fence_ref(NULL, &current);
 423       nouveau_fence_ref(NULL, &screen->base.fence.current);
 424    }
 425
 426    nouveau_bo_ref(NULL, &screen->notify);
 427
 428    nouveau_heap_destroy(&screen->query_heap);
 429    nouveau_heap_destroy(&screen->vp_exec_heap);
 430    nouveau_heap_destroy(&screen->vp_data_heap);
 431
 432    nouveau_object_del(&screen->query);
 433    nouveau_object_del(&screen->fence);
 434    nouveau_object_del(&screen->ntfy);
 435
 436    nouveau_object_del(&screen->sifm);
 437    nouveau_object_del(&screen->swzsurf);
 438    nouveau_object_del(&screen->surf2d);
 439    nouveau_object_del(&screen->m2mf);
 440    nouveau_object_del(&screen->eng3d);
 441    nouveau_object_del(&screen->null);
 442
 443    nouveau_screen_fini(&screen->base);
 444    FREE(screen);
 445 }
 446
 447 #define FAIL_SCREEN_INIT(str, err)                    \
 448    do {                                               \
 449       NOUVEAU_ERR(str, err);                          \
 450       screen->base.base.context_create = NULL;        \
 451       return &screen->base;                           \
 452    } while(0)
 453
 454 struct nouveau_screen *
 455 nv30_screen_create(struct nouveau_device *dev)
 456 {
 457    struct nv30_screen *screen;
 458    struct pipe_screen *pscreen;
 459    struct nouveau_pushbuf *push;
 460    struct nv04_fifo *fifo;
 461    unsigned oclass = 0;
 462    int ret, i;
 463
 464    switch (dev->chipset & 0xf0) {
 465    case 0x30:
 466       if (RANKINE_0397_CHIPSET & (1 << (dev->chipset & 0x0f)))
 467          oclass = NV30_3D_CLASS;
 468       else
 469       if (RANKINE_0697_CHIPSET & (1 << (dev->chipset & 0x0f)))
 470          oclass = NV34_3D_CLASS;
 471       else
 472       if (RANKINE_0497_CHIPSET & (1 << (dev->chipset & 0x0f)))
 473          oclass = NV35_3D_CLASS;
 474       break;
 475    case 0x40:
 476       if (CURIE_4097_CHIPSET & (1 << (dev->chipset & 0x0f)))
 477          oclass = NV40_3D_CLASS;
 478       else
 479       if (CURIE_4497_CHIPSET & (1 << (dev->chipset & 0x0f)))
 480          oclass = NV44_3D_CLASS;
 481       break;
 482    case 0x60:
 483       if (CURIE_4497_CHIPSET6X & (1 << (dev->chipset & 0x0f)))
 484          oclass = NV44_3D_CLASS;
 485       break;
 486    default:
 487       break;
 488    }
 489
 490    if (!oclass) {
 491       NOUVEAU_ERR("unknown 3d class for 0x%02x\n", dev->chipset);
 492       return NULL;
 493    }
 494
 495    screen = CALLOC_STRUCT(nv30_screen);
 496    if (!screen)
 497       return NULL;
 498
 499    pscreen = &screen->base.base;
 500    pscreen->destroy = nv30_screen_destroy;
 501
 502    /*
 503     * Some modern apps try to use msaa without keeping in mind the
 504     * restrictions on videomem of older cards. Resulting in dmesg saying:
 505     * [ 1197.850642] nouveau E[soffice.bin[3785]] fail ttm_validate
 506     * [ 1197.850648] nouveau E[soffice.bin[3785]] validating bo list
 507     * [ 1197.850654] nouveau E[soffice.bin[3785]] validate: -12
 508     *
 509     * Because we are running out of video memory, after which the program
 510     * using the msaa visual freezes, and eventually the entire system freezes.
 511     *
 512     * To work around this we do not allow msaa visauls by default and allow
 513     * the user to override this via NV30_MAX_MSAA.
 514     */
 515    screen->max_sample_count = debug_get_num_option("NV30_MAX_MSAA", 0);
 516    if (screen->max_sample_count > 4)
 517       screen->max_sample_count = 4;
 518
 519    pscreen->get_param = nv30_screen_get_param;
 520    pscreen->get_paramf = nv30_screen_get_paramf;
 521    pscreen->get_shader_param = nv30_screen_get_shader_param;
 522    pscreen->context_create = nv30_context_create;
 523    pscreen->is_format_supported = nv30_screen_is_format_supported;
 524    nv30_resource_screen_init(pscreen);
 525    nouveau_screen_init_vdec(&screen->base);
 526
 527    screen->base.fence.emit = nv30_screen_fence_emit;
 528    screen->base.fence.update = nv30_screen_fence_update;
 529
 530    ret = nouveau_screen_init(&screen->base, dev);
 531    if (ret)
 532       FAIL_SCREEN_INIT("nv30_screen_init failed: %d\n", ret);
 533
 534    screen->base.vidmem_bindings |= PIPE_BIND_VERTEX_BUFFER;
 535    screen->base.sysmem_bindings |= PIPE_BIND_VERTEX_BUFFER;
 536    if (oclass == NV40_3D_CLASS) {
 537       screen->base.vidmem_bindings |= PIPE_BIND_INDEX_BUFFER;
 538       screen->base.sysmem_bindings |= PIPE_BIND_INDEX_BUFFER;
 539    }
 540
 541    fifo = screen->base.channel->data;
 542    push = screen->base.pushbuf;
 543    push->rsvd_kick = 16;
 544
 545    ret = nouveau_object_new(screen->base.channel, 0x00000000, NV01_NULL_CLASS,
 546                             NULL, 0, &screen->null);
 547    if (ret)
 548       FAIL_SCREEN_INIT("error allocating null object: %d\n", ret);
 549
 550    /* DMA_FENCE refuses to accept DMA objects with "adjust" filled in,
 551     * this means that the address pointed at by the DMA object must
 552     * be 4KiB aligned, which means this object needs to be the first
 553     * one allocated on the channel.
 554     */
 555    ret = nouveau_object_new(screen->base.channel, 0xbeef1e00,
 556                             NOUVEAU_NOTIFIER_CLASS, &(struct nv04_notify) {
 557                             .length = 32 }, sizeof(struct nv04_notify),
 558                             &screen->fence);
 559    if (ret)
 560       FAIL_SCREEN_INIT("error allocating fence notifier: %d\n", ret);
 561
 562    /* DMA_NOTIFY object, we don't actually use this but M2MF fails without */
 563    ret = nouveau_object_new(screen->base.channel, 0xbeef0301,
 564                             NOUVEAU_NOTIFIER_CLASS, &(struct nv04_notify) {
 565                             .length = 32 }, sizeof(struct nv04_notify),
 566                             &screen->ntfy);
 567    if (ret)
 568       FAIL_SCREEN_INIT("error allocating sync notifier: %d\n", ret);
 569
 570    /* DMA_QUERY, used to implement occlusion queries, we attempt to allocate
 571     * the remainder of the "notifier block" assigned by the kernel for
 572     * use as query objects
 573     */
 574    ret = nouveau_object_new(screen->base.channel, 0xbeef0351,
 575                             NOUVEAU_NOTIFIER_CLASS, &(struct nv04_notify) {
 576                             .length = 4096 - 128 }, sizeof(struct nv04_notify),
 577                             &screen->query);
 578    if (ret)
 579       FAIL_SCREEN_INIT("error allocating query notifier: %d\n", ret);
 580
 581    ret = nouveau_heap_init(&screen->query_heap, 0, 4096 - 128);
 582    if (ret)
 583       FAIL_SCREEN_INIT("error creating query heap: %d\n", ret);
 584
 585    LIST_INITHEAD(&screen->queries);
 586
 587    /* Vertex program resources (code/data), currently 6 of the constant
 588     * slots are reserved to implement user clipping planes
 589     */
 590    if (oclass < NV40_3D_CLASS) {
 591       nouveau_heap_init(&screen->vp_exec_heap, 0, 256);
 592       nouveau_heap_init(&screen->vp_data_heap, 6, 256 - 6);
 593    } else {
 594       nouveau_heap_init(&screen->vp_exec_heap, 0, 512);
 595       nouveau_heap_init(&screen->vp_data_heap, 6, 468 - 6);
 596    }
 597
 598    ret = nouveau_bo_wrap(screen->base.device, fifo->notify, &screen->notify);
 599    if (ret == 0)
 600       ret = nouveau_bo_map(screen->notify, 0, screen->base.client);
 601    if (ret)
 602       FAIL_SCREEN_INIT("error mapping notifier memory: %d\n", ret);
 603
 604    ret = nouveau_object_new(screen->base.channel, 0xbeef3097, oclass,
 605                             NULL, 0, &screen->eng3d);
 606    if (ret)
 607       FAIL_SCREEN_INIT("error allocating 3d object: %d\n", ret);
 608
 609    BEGIN_NV04(push, NV01_SUBC(3D, OBJECT), 1);
 610    PUSH_DATA (push, screen->eng3d->handle);
 611    BEGIN_NV04(push, NV30_3D(DMA_NOTIFY), 13);
 612    PUSH_DATA (push, screen->ntfy->handle);
 613    PUSH_DATA (push, fifo->vram);     /* TEXTURE0 */
 614    PUSH_DATA (push, fifo->gart);     /* TEXTURE1 */
 615    PUSH_DATA (push, fifo->vram);     /* COLOR1 */
 616    PUSH_DATA (push, screen->null->handle);  /* UNK190 */
 617    PUSH_DATA (push, fifo->vram);     /* COLOR0 */
 618    PUSH_DATA (push, fifo->vram);     /* ZETA */
 619    PUSH_DATA (push, fifo->vram);     /* VTXBUF0 */
 620    PUSH_DATA (push, fifo->gart);     /* VTXBUF1 */
 621    PUSH_DATA (push, screen->fence->handle);  /* FENCE */
 622    PUSH_DATA (push, screen->query->handle);  /* QUERY - intr 0x80 if nullobj */
 623    PUSH_DATA (push, screen->null->handle);  /* UNK1AC */
 624    PUSH_DATA (push, screen->null->handle);  /* UNK1B0 */
 625    if (screen->eng3d->oclass < NV40_3D_CLASS) {
 626       BEGIN_NV04(push, SUBC_3D(0x03b0), 1);
 627       PUSH_DATA (push, 0x00100000);
 628       BEGIN_NV04(push, SUBC_3D(0x1d80), 1);
 629       PUSH_DATA (push, 3);
 630
 631       BEGIN_NV04(push, SUBC_3D(0x1e98), 1);
 632       PUSH_DATA (push, 0);
 633       BEGIN_NV04(push, SUBC_3D(0x17e0), 3);
 634       PUSH_DATA (push, fui(0.0));
 635       PUSH_DATA (push, fui(0.0));
 636       PUSH_DATA (push, fui(1.0));
 637       BEGIN_NV04(push, SUBC_3D(0x1f80), 16);
 638       for (i = 0; i < 16; i++)
 639          PUSH_DATA (push, (i == 8) ? 0x0000ffff : 0);
 640
 641       BEGIN_NV04(push, NV30_3D(RC_ENABLE), 1);
 642       PUSH_DATA (push, 0);
 643    } else {
 644       BEGIN_NV04(push, NV40_3D(DMA_COLOR2), 2);
 645       PUSH_DATA (push, fifo->vram);
 646       PUSH_DATA (push, fifo->vram);  /* COLOR3 */
 647
 648       BEGIN_NV04(push, SUBC_3D(0x1450), 1);
 649       PUSH_DATA (push, 0x00000004);
 650
 651       BEGIN_NV04(push, SUBC_3D(0x1ea4), 3); /* ZCULL */
 652       PUSH_DATA (push, 0x00000010);
 653       PUSH_DATA (push, 0x01000100);
 654       PUSH_DATA (push, 0xff800006);
 655
 656       /* vtxprog output routing */
 657       BEGIN_NV04(push, SUBC_3D(0x1fc4), 1);
 658       PUSH_DATA (push, 0x06144321);
 659       BEGIN_NV04(push, SUBC_3D(0x1fc8), 2);
 660       PUSH_DATA (push, 0xedcba987);
 661       PUSH_DATA (push, 0x0000006f);
 662       BEGIN_NV04(push, SUBC_3D(0x1fd0), 1);
 663       PUSH_DATA (push, 0x00171615);
 664       BEGIN_NV04(push, SUBC_3D(0x1fd4), 1);
 665       PUSH_DATA (push, 0x001b1a19);
 666
 667       BEGIN_NV04(push, SUBC_3D(0x1ef8), 1);
 668       PUSH_DATA (push, 0x0020ffff);
 669       BEGIN_NV04(push, SUBC_3D(0x1d64), 1);
 670       PUSH_DATA (push, 0x01d300d4);
 671
 672       BEGIN_NV04(push, NV40_3D(MIPMAP_ROUNDING), 1);
 673       PUSH_DATA (push, NV40_3D_MIPMAP_ROUNDING_MODE_DOWN);
 674    }
 675
 676    ret = nouveau_object_new(screen->base.channel, 0xbeef3901, NV03_M2MF_CLASS,
 677                             NULL, 0, &screen->m2mf);
 678    if (ret)
 679       FAIL_SCREEN_INIT("error allocating m2mf object: %d\n", ret);
 680
 681    BEGIN_NV04(push, NV01_SUBC(M2MF, OBJECT), 1);
 682    PUSH_DATA (push, screen->m2mf->handle);
 683    BEGIN_NV04(push, NV03_M2MF(DMA_NOTIFY), 1);
 684    PUSH_DATA (push, screen->ntfy->handle);
 685
 686    ret = nouveau_object_new(screen->base.channel, 0xbeef6201,
 687                             NV10_SURFACE_2D_CLASS, NULL, 0, &screen->surf2d);
 688    if (ret)
 689       FAIL_SCREEN_INIT("error allocating surf2d object: %d\n", ret);
 690
 691    BEGIN_NV04(push, NV01_SUBC(SF2D, OBJECT), 1);
 692    PUSH_DATA (push, screen->surf2d->handle);
 693    BEGIN_NV04(push, NV04_SF2D(DMA_NOTIFY), 1);
 694    PUSH_DATA (push, screen->ntfy->handle);
 695
 696    if (dev->chipset < 0x40)
 697       oclass = NV30_SURFACE_SWZ_CLASS;
 698    else
 699       oclass = NV40_SURFACE_SWZ_CLASS;
 700
 701    ret = nouveau_object_new(screen->base.channel, 0xbeef5201, oclass,
 702                             NULL, 0, &screen->swzsurf);
 703    if (ret)
 704       FAIL_SCREEN_INIT("error allocating swizzled surface object: %d\n", ret);
 705
 706    BEGIN_NV04(push, NV01_SUBC(SSWZ, OBJECT), 1);
 707    PUSH_DATA (push, screen->swzsurf->handle);
 708    BEGIN_NV04(push, NV04_SSWZ(DMA_NOTIFY), 1);
 709    PUSH_DATA (push, screen->ntfy->handle);
 710
 711    if (dev->chipset < 0x40)
 712       oclass = NV30_SIFM_CLASS;
 713    else
 714       oclass = NV40_SIFM_CLASS;
 715
 716    ret = nouveau_object_new(screen->base.channel, 0xbeef7701, oclass,
 717                             NULL, 0, &screen->sifm);
 718    if (ret)
 719       FAIL_SCREEN_INIT("error allocating scaled image object: %d\n", ret);
 720
 721    BEGIN_NV04(push, NV01_SUBC(SIFM, OBJECT), 1);
 722    PUSH_DATA (push, screen->sifm->handle);
 723    BEGIN_NV04(push, NV03_SIFM(DMA_NOTIFY), 1);
 724    PUSH_DATA (push, screen->ntfy->handle);
 725    BEGIN_NV04(push, NV05_SIFM(COLOR_CONVERSION), 1);
 726    PUSH_DATA (push, NV05_SIFM_COLOR_CONVERSION_TRUNCATE);
 727
 728    nouveau_pushbuf_kick(push, push->channel);
 729
 730    nouveau_fence_new(&screen->base, &screen->base.fence.current, false);
 731    return &screen->base;
 732 }