2 * Copyright 2003 VMware, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 #include "main/version.h"
28 #include "brw_context.h"
29 #include "intel_batchbuffer.h"
32 * Test if we can use MI_LOAD_REGISTER_MEM from an untrusted batchbuffer.
34 * Some combinations of hardware and kernel versions allow this feature,
35 * while others don't. Instead of trying to enumerate every case, just
36 * try and write a register and see if works.
39 can_do_pipelined_register_writes(struct brw_context
*brw
)
42 * gen >= 8 specifically allows these writes. gen <= 6 also
48 static int result
= -1;
52 /* We use SO_WRITE_OFFSET0 since you're supposed to write it (unlike the
53 * statistics registers), and we already reset it to zero before using it.
55 const int reg
= GEN7_SO_WRITE_OFFSET(0);
56 const int expected_value
= 0x1337d0d0;
57 const int offset
= 100;
59 /* The register we picked only exists on Gen7+. */
60 assert(brw
->gen
== 7);
63 /* Set a value in a BO to a known quantity. The workaround BO already
64 * exists and doesn't contain anything important, so we may as well use it.
66 drm_intel_bo_map(brw
->workaround_bo
, true);
67 data
= brw
->workaround_bo
->virtual;
68 data
[offset
] = 0xffffffff;
69 drm_intel_bo_unmap(brw
->workaround_bo
);
71 /* Write the register. */
73 OUT_BATCH(MI_LOAD_REGISTER_IMM
| (3 - 2));
75 OUT_BATCH(expected_value
);
78 brw_emit_mi_flush(brw
);
80 /* Save the register's value back to the buffer. */
82 OUT_BATCH(MI_STORE_REGISTER_MEM
| (3 - 2));
84 OUT_RELOC(brw
->workaround_bo
,
85 I915_GEM_DOMAIN_INSTRUCTION
, I915_GEM_DOMAIN_INSTRUCTION
,
86 offset
* sizeof(uint32_t));
89 intel_batchbuffer_flush(brw
);
91 /* Check whether the value got written. */
92 drm_intel_bo_map(brw
->workaround_bo
, false);
93 data
= brw
->workaround_bo
->virtual;
94 bool success
= data
[offset
] == expected_value
;
95 drm_intel_bo_unmap(brw
->workaround_bo
);
103 can_write_oacontrol(struct brw_context
*brw
)
105 if (brw
->gen
< 6 || brw
->gen
>= 8)
108 static int result
= -1;
112 /* Set "Select Context ID" to a particular address (which is likely not a
113 * context), but leave all counting disabled. This should be harmless.
115 const int expected_value
= 0x31337000;
116 const int offset
= 110;
119 /* Set a value in a BO to a known quantity. The workaround BO already
120 * exists and doesn't contain anything important, so we may as well use it.
122 drm_intel_bo_map(brw
->workaround_bo
, true);
123 data
= brw
->workaround_bo
->virtual;
124 data
[offset
] = 0xffffffff;
125 drm_intel_bo_unmap(brw
->workaround_bo
);
127 /* Write OACONTROL. */
129 OUT_BATCH(MI_LOAD_REGISTER_IMM
| (3 - 2));
130 OUT_BATCH(OACONTROL
);
131 OUT_BATCH(expected_value
);
134 brw_emit_mi_flush(brw
);
136 /* Save the register's value back to the buffer. */
138 OUT_BATCH(MI_STORE_REGISTER_MEM
| (3 - 2));
139 OUT_BATCH(OACONTROL
);
140 OUT_RELOC(brw
->workaround_bo
,
141 I915_GEM_DOMAIN_INSTRUCTION
, I915_GEM_DOMAIN_INSTRUCTION
,
142 offset
* sizeof(uint32_t));
145 brw_emit_mi_flush(brw
);
147 /* Set OACONTROL back to zero (everything off). */
149 OUT_BATCH(MI_LOAD_REGISTER_IMM
| (3 - 2));
150 OUT_BATCH(OACONTROL
);
154 intel_batchbuffer_flush(brw
);
156 /* Check whether the value got written. */
157 drm_intel_bo_map(brw
->workaround_bo
, false);
158 data
= brw
->workaround_bo
->virtual;
159 bool success
= data
[offset
] == expected_value
;
160 drm_intel_bo_unmap(brw
->workaround_bo
);
168 * Initializes potential list of extensions if ctx == NULL, or actually enables
169 * extensions for a context.
172 intelInitExtensions(struct gl_context
*ctx
)
174 struct brw_context
*brw
= brw_context(ctx
);
176 assert(brw
->gen
>= 4);
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 ctx
->Extensions
.ARB_depth_buffer_float
= true;
184 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 ctx
->Extensions
.ARB_half_float_vertex
= true;
197 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 ctx
->Extensions
.ARB_seamless_cube_map
= true;
206 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 ctx
->Extensions
.ARB_sync
= true;
211 ctx
->Extensions
.ARB_texture_border_clamp
= true;
212 ctx
->Extensions
.ARB_texture_compression_rgtc
= true;
213 ctx
->Extensions
.ARB_texture_cube_map
= true;
214 ctx
->Extensions
.ARB_texture_env_combine
= true;
215 ctx
->Extensions
.ARB_texture_env_crossbar
= true;
216 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 ctx
->Extensions
.ARB_texture_rg
= true;
221 ctx
->Extensions
.ARB_texture_rgb10_a2ui
= true;
222 ctx
->Extensions
.ARB_vertex_program
= true;
223 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 ctx
->Extensions
.EXT_blend_color
= true;
227 ctx
->Extensions
.EXT_blend_equation_separate
= true;
228 ctx
->Extensions
.EXT_blend_func_separate
= true;
229 ctx
->Extensions
.EXT_blend_minmax
= true;
230 ctx
->Extensions
.EXT_draw_buffers2
= true;
231 ctx
->Extensions
.EXT_framebuffer_sRGB
= true;
232 ctx
->Extensions
.EXT_gpu_program_parameters
= true;
233 ctx
->Extensions
.EXT_packed_float
= true;
234 ctx
->Extensions
.EXT_pixel_buffer_object
= true;
235 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 ctx
->Extensions
.EXT_texture_env_dot3
= true;
241 ctx
->Extensions
.EXT_texture_filter_anisotropic
= true;
242 ctx
->Extensions
.EXT_texture_integer
= true;
243 ctx
->Extensions
.EXT_texture_shared_exponent
= true;
244 ctx
->Extensions
.EXT_texture_snorm
= true;
245 ctx
->Extensions
.EXT_texture_sRGB
= true;
246 ctx
->Extensions
.EXT_texture_sRGB_decode
= true;
247 ctx
->Extensions
.EXT_texture_swizzle
= true;
248 ctx
->Extensions
.EXT_vertex_array_bgra
= true;
249 ctx
->Extensions
.AMD_seamless_cubemap_per_texture
= true;
250 ctx
->Extensions
.APPLE_object_purgeable
= true;
251 ctx
->Extensions
.ATI_separate_stencil
= true;
252 ctx
->Extensions
.ATI_texture_env_combine3
= true;
253 ctx
->Extensions
.MESA_pack_invert
= true;
254 ctx
->Extensions
.NV_conditional_render
= true;
255 ctx
->Extensions
.NV_primitive_restart
= true;
256 ctx
->Extensions
.NV_texture_barrier
= true;
257 ctx
->Extensions
.NV_texture_env_combine4
= true;
258 ctx
->Extensions
.NV_texture_rectangle
= true;
259 ctx
->Extensions
.TDFX_texture_compression_FXT1
= true;
260 ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
= true;
261 ctx
->Extensions
.OES_draw_texture
= true;
262 ctx
->Extensions
.OES_EGL_image
= true;
263 ctx
->Extensions
.OES_EGL_image_external
= true;
264 ctx
->Extensions
.OES_standard_derivatives
= true;
265 ctx
->Extensions
.OES_texture_float
= true;
266 ctx
->Extensions
.OES_texture_float_linear
= true;
267 ctx
->Extensions
.OES_texture_half_float
= true;
268 ctx
->Extensions
.OES_texture_half_float_linear
= true;
271 ctx
->Const
.GLSLVersion
= 420;
272 else if (brw
->gen
>= 6)
273 ctx
->Const
.GLSLVersion
= 330;
275 ctx
->Const
.GLSLVersion
= 120;
276 _mesa_override_glsl_version(&ctx
->Const
);
279 ctx
->Extensions
.ARB_texture_query_levels
= ctx
->Const
.GLSLVersion
>= 130;
280 ctx
->Extensions
.ARB_texture_query_lod
= true;
281 ctx
->Extensions
.EXT_shader_integer_mix
= ctx
->Const
.GLSLVersion
>= 130;
282 ctx
->Extensions
.EXT_timer_query
= true;
284 if (brw
->gen
== 5 || can_write_oacontrol(brw
)) {
285 ctx
->Extensions
.AMD_performance_monitor
= true;
286 ctx
->Extensions
.INTEL_performance_query
= true;
291 ctx
->Extensions
.ARB_blend_func_extended
=
292 !driQueryOptionb(&brw
->optionCache
, "disable_blend_func_extended");
293 ctx
->Extensions
.ARB_conditional_render_inverted
= true;
294 ctx
->Extensions
.ARB_cull_distance
= false;
295 ctx
->Extensions
.ARB_draw_buffers_blend
= true;
296 ctx
->Extensions
.ARB_ES3_compatibility
= true;
297 ctx
->Extensions
.ARB_fragment_layer_viewport
= true;
298 ctx
->Extensions
.ARB_sample_shading
= true;
299 ctx
->Extensions
.ARB_shading_language_420pack
= true;
300 ctx
->Extensions
.ARB_shading_language_packing
= true;
301 ctx
->Extensions
.ARB_texture_buffer_object
= true;
302 ctx
->Extensions
.ARB_texture_buffer_object_rgb32
= true;
303 ctx
->Extensions
.ARB_texture_buffer_range
= true;
304 ctx
->Extensions
.ARB_texture_cube_map_array
= true;
305 ctx
->Extensions
.ARB_texture_gather
= true;
306 ctx
->Extensions
.ARB_texture_multisample
= true;
307 ctx
->Extensions
.ARB_uniform_buffer_object
= true;
309 ctx
->Extensions
.AMD_vertex_shader_layer
= true;
310 ctx
->Extensions
.EXT_framebuffer_multisample
= true;
311 ctx
->Extensions
.EXT_framebuffer_multisample_blit_scaled
= true;
312 ctx
->Extensions
.EXT_transform_feedback
= true;
313 ctx
->Extensions
.OES_depth_texture_cube_map
= true;
315 ctx
->Extensions
.ARB_timer_query
= brw
->intelScreen
->hw_has_timestamp
;
317 /* Only enable this in core profile because other parts of Mesa behave
318 * slightly differently when the extension is enabled.
320 if (ctx
->API
== API_OPENGL_CORE
) {
321 ctx
->Extensions
.ARB_shader_subroutine
= true;
322 ctx
->Extensions
.ARB_viewport_array
= true;
323 ctx
->Extensions
.AMD_vertex_shader_viewport_index
= true;
327 brw
->predicate
.supported
= false;
328 brw
->can_do_pipelined_register_writes
=
329 can_do_pipelined_register_writes(brw
);
332 ctx
->Extensions
.ARB_conservative_depth
= true;
333 ctx
->Extensions
.ARB_derivative_control
= true;
334 ctx
->Extensions
.ARB_framebuffer_no_attachments
= true;
335 ctx
->Extensions
.ARB_gpu_shader5
= true;
336 ctx
->Extensions
.ARB_shader_atomic_counters
= true;
337 ctx
->Extensions
.ARB_shader_clock
= true;
338 ctx
->Extensions
.ARB_shader_image_load_store
= true;
339 ctx
->Extensions
.ARB_shader_image_size
= true;
340 ctx
->Extensions
.ARB_shader_texture_image_samples
= true;
341 ctx
->Extensions
.ARB_tessellation_shader
= true;
342 ctx
->Extensions
.ARB_texture_compression_bptc
= true;
343 ctx
->Extensions
.ARB_texture_view
= true;
344 ctx
->Extensions
.ARB_shader_storage_buffer_object
= true;
345 ctx
->Extensions
.EXT_shader_samples_identical
= true;
346 ctx
->Extensions
.OES_texture_buffer
= true;
348 if (brw
->can_do_pipelined_register_writes
) {
349 ctx
->Extensions
.ARB_draw_indirect
= true;
350 ctx
->Extensions
.ARB_transform_feedback2
= true;
351 ctx
->Extensions
.ARB_transform_feedback3
= true;
352 ctx
->Extensions
.ARB_transform_feedback_instanced
= true;
354 if ((brw
->gen
>= 8 || brw
->intelScreen
->cmd_parser_version
>= 5) &&
355 ctx
->Const
.MaxComputeWorkGroupSize
[0] >= 1024)
356 ctx
->Extensions
.ARB_compute_shader
= true;
358 if (brw
->intelScreen
->cmd_parser_version
>= 2)
359 brw
->predicate
.supported
= true;
362 /* Only enable this in core profile because other parts of Mesa behave
363 * slightly differently when the extension is enabled.
365 if (ctx
->API
== API_OPENGL_CORE
) {
366 ctx
->Extensions
.ARB_viewport_array
= true;
367 ctx
->Extensions
.AMD_vertex_shader_viewport_index
= true;
368 ctx
->Extensions
.ARB_shader_subroutine
= true;
372 if (brw
->intelScreen
->has_mi_math_and_lrr
) {
373 ctx
->Extensions
.ARB_query_buffer_object
= true;
377 ctx
->Extensions
.ARB_shader_precision
= true;
378 ctx
->Extensions
.ARB_stencil_texturing
= true;
379 ctx
->Extensions
.ARB_texture_stencil8
= true;
380 ctx
->Extensions
.ARB_gpu_shader_fp64
= true;
381 ctx
->Extensions
.ARB_vertex_attrib_64bit
= true;
385 ctx
->Extensions
.KHR_texture_compression_astc_ldr
= true;
386 ctx
->Extensions
.ARB_shader_stencil_export
= true;
389 if (ctx
->API
== API_OPENGL_CORE
)
390 ctx
->Extensions
.ARB_base_instance
= true;
391 if (ctx
->API
!= API_OPENGL_CORE
)
392 ctx
->Extensions
.ARB_color_buffer_float
= true;
394 if (ctx
->Mesa_DXTn
|| driQueryOptionb(&brw
->optionCache
, "force_s3tc_enable"))
395 ctx
->Extensions
.EXT_texture_compression_s3tc
= true;
397 ctx
->Extensions
.ANGLE_texture_compression_dxt
= true;