intel_extensions.c 15 KB
Newer Older
1
/*
Jose Fonseca's avatar
Jose Fonseca committed
2
 * Copyright 2003 VMware, Inc.
3
 * All Rights Reserved.
4
 *
5 6 7 8
 * 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,
Ian Romanick's avatar
Ian Romanick committed
9
 * distribute, sublicense, and/or sell copies of the Software, and to
10 11
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
12
 *
13 14 15
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
16
 *
17 18
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Ian Romanick's avatar
Ian Romanick committed
19
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
Jose Fonseca's avatar
Jose Fonseca committed
20
 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 22 23
 * 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.
24
 */
25 26 27

#include "main/version.h"

28
#include "brw_context.h"
29
#include "intel_batchbuffer.h"
30

31 32 33 34 35 36 37 38 39 40
/**
 * Test if we can use MI_LOAD_REGISTER_MEM from an untrusted batchbuffer.
 *
 * Some combinations of hardware and kernel versions allow this feature,
 * while others don't.  Instead of trying to enumerate every case, just
 * try and write a register and see if works.
 */
static bool
can_do_pipelined_register_writes(struct brw_context *brw)
{
41 42 43 44 45
   /**
    * gen >= 8 specifically allows these writes. gen <= 6 also
    * doesn't block them.
    */
   if (brw->gen != 7)
46 47
      return true;

48 49 50 51
   static int result = -1;
   if (result != -1)
      return result;

52 53 54 55 56 57 58 59
   /* We use SO_WRITE_OFFSET0 since you're supposed to write it (unlike the
    * statistics registers), and we already reset it to zero before using it.
    */
   const int reg = GEN7_SO_WRITE_OFFSET(0);
   const int expected_value = 0x1337d0d0;
   const int offset = 100;

   /* The register we picked only exists on Gen7+. */
60
   assert(brw->gen == 7);
61 62 63 64 65

   uint32_t *data;
   /* Set a value in a BO to a known quantity.  The workaround BO already
    * exists and doesn't contain anything important, so we may as well use it.
    */
66 67
   drm_intel_bo_map(brw->workaround_bo, true);
   data = brw->workaround_bo->virtual;
68
   data[offset] = 0xffffffff;
69
   drm_intel_bo_unmap(brw->workaround_bo);
70 71 72 73 74 75 76 77

   /* Write the register. */
   BEGIN_BATCH(3);
   OUT_BATCH(MI_LOAD_REGISTER_IMM | (3 - 2));
   OUT_BATCH(reg);
   OUT_BATCH(expected_value);
   ADVANCE_BATCH();

78
   brw_emit_mi_flush(brw);
79 80 81 82 83

   /* Save the register's value back to the buffer. */
   BEGIN_BATCH(3);
   OUT_BATCH(MI_STORE_REGISTER_MEM | (3 - 2));
   OUT_BATCH(reg);
84
   OUT_RELOC(brw->workaround_bo,
85 86 87 88 89 90 91
             I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
             offset * sizeof(uint32_t));
   ADVANCE_BATCH();

   intel_batchbuffer_flush(brw);

   /* Check whether the value got written. */
92 93
   drm_intel_bo_map(brw->workaround_bo, false);
   data = brw->workaround_bo->virtual;
94
   bool success = data[offset] == expected_value;
95
   drm_intel_bo_unmap(brw->workaround_bo);
96

97 98
   result = success;

99 100 101
   return success;
}

102 103 104 105 106 107
static bool
can_write_oacontrol(struct brw_context *brw)
{
   if (brw->gen < 6 || brw->gen >= 8)
      return false;

108 109 110 111
   static int result = -1;
   if (result != -1)
      return result;

112 113 114 115 116 117 118 119 120 121
   /* Set "Select Context ID" to a particular address (which is likely not a
    * context), but leave all counting disabled.  This should be harmless.
    */
   const int expected_value = 0x31337000;
   const int offset = 110;

   uint32_t *data;
   /* Set a value in a BO to a known quantity.  The workaround BO already
    * exists and doesn't contain anything important, so we may as well use it.
    */
122 123
   drm_intel_bo_map(brw->workaround_bo, true);
   data = brw->workaround_bo->virtual;
124
   data[offset] = 0xffffffff;
125
   drm_intel_bo_unmap(brw->workaround_bo);
126 127 128 129 130 131 132 133

   /* Write OACONTROL. */
   BEGIN_BATCH(3);
   OUT_BATCH(MI_LOAD_REGISTER_IMM | (3 - 2));
   OUT_BATCH(OACONTROL);
   OUT_BATCH(expected_value);
   ADVANCE_BATCH();

134
   brw_emit_mi_flush(brw);
135 136 137 138 139

   /* Save the register's value back to the buffer. */
   BEGIN_BATCH(3);
   OUT_BATCH(MI_STORE_REGISTER_MEM | (3 - 2));
   OUT_BATCH(OACONTROL);
140
   OUT_RELOC(brw->workaround_bo,
141 142 143 144
             I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
             offset * sizeof(uint32_t));
   ADVANCE_BATCH();

145
   brw_emit_mi_flush(brw);
146 147 148 149 150 151 152 153 154 155 156

   /* Set OACONTROL back to zero (everything off). */
   BEGIN_BATCH(3);
   OUT_BATCH(MI_LOAD_REGISTER_IMM | (3 - 2));
   OUT_BATCH(OACONTROL);
   OUT_BATCH(0);
   ADVANCE_BATCH();

   intel_batchbuffer_flush(brw);

   /* Check whether the value got written. */
157 158
   drm_intel_bo_map(brw->workaround_bo, false);
   data = brw->workaround_bo->virtual;
159
   bool success = data[offset] == expected_value;
160
   drm_intel_bo_unmap(brw->workaround_bo);
161

162 163
   result = success;

164 165 166
   return success;
}

167 168 169 170 171 172 173
/**
 * Initializes potential list of extensions if ctx == NULL, or actually enables
 * extensions for a context.
 */
void
intelInitExtensions(struct gl_context *ctx)
{
174
   struct brw_context *brw = brw_context(ctx);
175

176
   assert(brw->gen >= 4);
177

178
   ctx->Extensions.ARB_arrays_of_arrays = true;
179
   ctx->Extensions.ARB_buffer_storage = true;
180
   ctx->Extensions.ARB_clear_texture = true;
181
   ctx->Extensions.ARB_clip_control = true;
182
   ctx->Extensions.ARB_copy_image = true;
183 184
   ctx->Extensions.ARB_depth_buffer_float = true;
   ctx->Extensions.ARB_depth_clamp = true;
185
   ctx->Extensions.ARB_depth_texture = true;
186
   ctx->Extensions.ARB_draw_elements_base_vertex = true;
187
   ctx->Extensions.ARB_draw_instanced = true;
188
   ctx->Extensions.ARB_ES2_compatibility = true;
189
   ctx->Extensions.ARB_explicit_attrib_location = true;
190
   ctx->Extensions.ARB_explicit_uniform_location = true;
191
   ctx->Extensions.ARB_fragment_coord_conventions = true;
192
   ctx->Extensions.ARB_fragment_program = true;
193
   ctx->Extensions.ARB_fragment_program_shadow = true;
194
   ctx->Extensions.ARB_fragment_shader = true;
195
   ctx->Extensions.ARB_framebuffer_object = true;
196 197
   ctx->Extensions.ARB_half_float_vertex = true;
   ctx->Extensions.ARB_instanced_arrays = true;
198
   ctx->Extensions.ARB_internalformat_query = true;
199
   ctx->Extensions.ARB_internalformat_query2 = true;
200
   ctx->Extensions.ARB_map_buffer_range = true;
201
   ctx->Extensions.ARB_occlusion_query = true;
202
   ctx->Extensions.ARB_occlusion_query2 = true;
203
   ctx->Extensions.ARB_pipeline_statistics_query = true;
204
   ctx->Extensions.ARB_point_sprite = true;
205 206
   ctx->Extensions.ARB_seamless_cube_map = true;
   ctx->Extensions.ARB_shader_bit_encoding = true;
207
   ctx->Extensions.ARB_shader_draw_parameters = true;
208
   ctx->Extensions.ARB_shader_texture_lod = true;
209
   ctx->Extensions.ARB_shadow = true;
210 211
   ctx->Extensions.ARB_sync = true;
   ctx->Extensions.ARB_texture_border_clamp = true;
212
   ctx->Extensions.ARB_texture_compression_rgtc = true;
213 214 215 216
   ctx->Extensions.ARB_texture_cube_map = true;
   ctx->Extensions.ARB_texture_env_combine = true;
   ctx->Extensions.ARB_texture_env_crossbar = true;
   ctx->Extensions.ARB_texture_env_dot3 = true;
217
   ctx->Extensions.ARB_texture_float = true;
218
   ctx->Extensions.ARB_texture_mirror_clamp_to_edge = true;
219
   ctx->Extensions.ARB_texture_non_power_of_two = true;
220 221
   ctx->Extensions.ARB_texture_rg = true;
   ctx->Extensions.ARB_texture_rgb10_a2ui = true;
222 223
   ctx->Extensions.ARB_vertex_program = true;
   ctx->Extensions.ARB_vertex_shader = true;
224
   ctx->Extensions.ARB_vertex_type_2_10_10_10_rev = true;
225
   ctx->Extensions.ARB_vertex_type_10f_11f_11f_rev = true;
226 227 228 229
   ctx->Extensions.EXT_blend_color = true;
   ctx->Extensions.EXT_blend_equation_separate = true;
   ctx->Extensions.EXT_blend_func_separate = true;
   ctx->Extensions.EXT_blend_minmax = true;
230 231
   ctx->Extensions.EXT_draw_buffers2 = true;
   ctx->Extensions.EXT_framebuffer_sRGB = true;
232
   ctx->Extensions.EXT_gpu_program_parameters = true;
233
   ctx->Extensions.EXT_packed_float = true;
234 235
   ctx->Extensions.EXT_pixel_buffer_object = true;
   ctx->Extensions.EXT_point_parameters = true;
236
   ctx->Extensions.EXT_polygon_offset_clamp = true;
237
   ctx->Extensions.EXT_provoking_vertex = true;
238
   ctx->Extensions.EXT_stencil_two_side = true;
239
   ctx->Extensions.EXT_texture_array = true;
240 241
   ctx->Extensions.EXT_texture_env_dot3 = true;
   ctx->Extensions.EXT_texture_filter_anisotropic = true;
242 243 244
   ctx->Extensions.EXT_texture_integer = true;
   ctx->Extensions.EXT_texture_shared_exponent = true;
   ctx->Extensions.EXT_texture_snorm = true;
245 246
   ctx->Extensions.EXT_texture_sRGB = true;
   ctx->Extensions.EXT_texture_sRGB_decode = true;
247 248
   ctx->Extensions.EXT_texture_swizzle = true;
   ctx->Extensions.EXT_vertex_array_bgra = true;
249
   ctx->Extensions.KHR_robustness = true;
250
   ctx->Extensions.AMD_seamless_cubemap_per_texture = true;
251
   ctx->Extensions.APPLE_object_purgeable = true;
252 253
   ctx->Extensions.ATI_separate_stencil = true;
   ctx->Extensions.ATI_texture_env_combine3 = true;
254
   ctx->Extensions.MESA_pack_invert = true;
255 256
   ctx->Extensions.NV_conditional_render = true;
   ctx->Extensions.NV_primitive_restart = true;
257
   ctx->Extensions.NV_texture_barrier = true;
258
   ctx->Extensions.NV_texture_env_combine4 = true;
259 260
   ctx->Extensions.NV_texture_rectangle = true;
   ctx->Extensions.TDFX_texture_compression_FXT1 = true;
261
   ctx->Extensions.OES_compressed_ETC1_RGB8_texture = true;
262
   ctx->Extensions.OES_draw_texture = true;
263
   ctx->Extensions.OES_EGL_image = true;
264
   ctx->Extensions.OES_EGL_image_external = true;
265 266 267 268 269
   ctx->Extensions.OES_standard_derivatives = true;
   ctx->Extensions.OES_texture_float = true;
   ctx->Extensions.OES_texture_float_linear = true;
   ctx->Extensions.OES_texture_half_float = true;
   ctx->Extensions.OES_texture_half_float_linear = true;
270

Iago Toral's avatar
Iago Toral committed
271
   if (brw->gen >= 8)
272
      ctx->Const.GLSLVersion = 420;
Iago Toral's avatar
Iago Toral committed
273
   else if (brw->gen >= 6)
274
      ctx->Const.GLSLVersion = 330;
275 276
   else
      ctx->Const.GLSLVersion = 120;
277
   _mesa_override_glsl_version(&ctx->Const);
278

279 280 281 282 283 284 285 286 287 288 289 290
   if (brw->gen >= 5) {
      ctx->Extensions.ARB_texture_query_levels = ctx->Const.GLSLVersion >= 130;
      ctx->Extensions.ARB_texture_query_lod = true;
      ctx->Extensions.EXT_shader_integer_mix = ctx->Const.GLSLVersion >= 130;
      ctx->Extensions.EXT_timer_query = true;

      if (brw->gen == 5 || can_write_oacontrol(brw)) {
         ctx->Extensions.AMD_performance_monitor = true;
         ctx->Extensions.INTEL_performance_query = true;
      }
   }

291
   if (brw->gen >= 6) {
292 293 294
      ctx->Extensions.ARB_blend_func_extended =
         !driQueryOptionb(&brw->optionCache, "disable_blend_func_extended");
      ctx->Extensions.ARB_conditional_render_inverted = true;
295
      ctx->Extensions.ARB_cull_distance = true;
296 297
      ctx->Extensions.ARB_draw_buffers_blend = true;
      ctx->Extensions.ARB_ES3_compatibility = true;
298
      ctx->Extensions.ARB_fragment_layer_viewport = true;
299
      ctx->Extensions.ARB_sample_shading = true;
300
      ctx->Extensions.ARB_shading_language_420pack = true;
301
      ctx->Extensions.ARB_shading_language_packing = true;
302 303
      ctx->Extensions.ARB_texture_buffer_object = true;
      ctx->Extensions.ARB_texture_buffer_object_rgb32 = true;
304
      ctx->Extensions.ARB_texture_buffer_range = true;
305
      ctx->Extensions.ARB_texture_cube_map_array = true;
306
      ctx->Extensions.ARB_texture_gather = true;
307 308 309
      ctx->Extensions.ARB_texture_multisample = true;
      ctx->Extensions.ARB_uniform_buffer_object = true;

310
      ctx->Extensions.AMD_vertex_shader_layer = true;
311 312 313 314
      ctx->Extensions.EXT_framebuffer_multisample = true;
      ctx->Extensions.EXT_framebuffer_multisample_blit_scaled = true;
      ctx->Extensions.EXT_transform_feedback = true;
      ctx->Extensions.OES_depth_texture_cube_map = true;
315
      ctx->Extensions.OES_sample_variables = true;
316

317
      ctx->Extensions.ARB_timer_query = brw->intelScreen->hw_has_timestamp;
318 319 320 321 322

      /* Only enable this in core profile because other parts of Mesa behave
       * slightly differently when the extension is enabled.
       */
      if (ctx->API == API_OPENGL_CORE) {
323
         ctx->Extensions.ARB_shader_subroutine = true;
324 325 326
         ctx->Extensions.ARB_viewport_array = true;
         ctx->Extensions.AMD_vertex_shader_viewport_index = true;
      }
327 328
   }

329
   brw->predicate.supported = false;
330 331
   brw->can_do_pipelined_register_writes =
      can_do_pipelined_register_writes(brw);
332

333
   if (brw->gen >= 7) {
334
      ctx->Extensions.ARB_conservative_depth = true;
335
      ctx->Extensions.ARB_derivative_control = true;
336
      ctx->Extensions.ARB_framebuffer_no_attachments = true;
337 338
      ctx->Extensions.ARB_gpu_shader5 = true;
      ctx->Extensions.ARB_shader_atomic_counters = true;
339
      ctx->Extensions.ARB_shader_clock = true;
340
      ctx->Extensions.ARB_shader_image_load_store = true;
341
      ctx->Extensions.ARB_shader_image_size = true;
342
      ctx->Extensions.ARB_shader_texture_image_samples = true;
343
      ctx->Extensions.ARB_tessellation_shader = true;
344
      ctx->Extensions.ARB_texture_compression_bptc = true;
345
      ctx->Extensions.ARB_texture_view = true;
346
      ctx->Extensions.ARB_shader_storage_buffer_object = true;
347
      ctx->Extensions.EXT_shader_samples_identical = true;
348
      ctx->Extensions.OES_texture_buffer = true;
349

350
      if (brw->can_do_pipelined_register_writes) {
351
         ctx->Extensions.ARB_draw_indirect = true;
352
         ctx->Extensions.ARB_transform_feedback2 = true;
353
         ctx->Extensions.ARB_transform_feedback3 = true;
354
         ctx->Extensions.ARB_transform_feedback_instanced = true;
355

356 357
         if ((brw->gen >= 8 || brw->intelScreen->cmd_parser_version >= 5) &&
             ctx->Const.MaxComputeWorkGroupSize[0] >= 1024)
358 359
            ctx->Extensions.ARB_compute_shader = true;

360 361
         if (brw->intelScreen->cmd_parser_version >= 2)
            brw->predicate.supported = true;
362
      }
363

364 365 366 367 368 369
      /* Only enable this in core profile because other parts of Mesa behave
       * slightly differently when the extension is enabled.
       */
      if (ctx->API == API_OPENGL_CORE) {
         ctx->Extensions.ARB_viewport_array = true;
         ctx->Extensions.AMD_vertex_shader_viewport_index = true;
370
         ctx->Extensions.ARB_shader_subroutine = true;
371
      }
372 373
   }

374 375 376 377
   if (brw->gen >= 8 || brw->is_haswell || brw->is_baytrail) {
      ctx->Extensions.ARB_robust_buffer_access_behavior = true;
   }

378
   if (brw->intelScreen->has_mi_math_and_lrr) {
379 380 381
      ctx->Extensions.ARB_query_buffer_object = true;
   }

382
   if (brw->gen >= 8) {
383
      ctx->Extensions.ARB_shader_precision = true;
384
      ctx->Extensions.ARB_stencil_texturing = true;
385
      ctx->Extensions.ARB_texture_stencil8 = true;
386
      ctx->Extensions.ARB_gpu_shader_fp64 = true;
387
      ctx->Extensions.ARB_vertex_attrib_64bit = true;
388 389
   }

390 391
   if (brw->gen >= 9) {
      ctx->Extensions.KHR_texture_compression_astc_ldr = true;
392
      ctx->Extensions.ARB_shader_stencil_export = true;
393 394
   }

395 396 397 398
   if (ctx->API == API_OPENGL_CORE)
      ctx->Extensions.ARB_base_instance = true;
   if (ctx->API != API_OPENGL_CORE)
      ctx->Extensions.ARB_color_buffer_float = true;
399

400
   if (ctx->Mesa_DXTn || driQueryOptionb(&brw->optionCache, "force_s3tc_enable"))
401 402 403 404
      ctx->Extensions.EXT_texture_compression_s3tc = true;

   ctx->Extensions.ANGLE_texture_compression_dxt = true;
}