1 /**************************************************************************
3 * Copyright 2003 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "main/version.h"
30 #include "brw_context.h"
31 #include "intel_batchbuffer.h"
32 #include "intel_reg.h"
36 * Test if we can use MI_LOAD_REGISTER_MEM from an untrusted batchbuffer.
38 * Some combinations of hardware and kernel versions allow this feature,
39 * while others don't. Instead of trying to enumerate every case, just
40 * try and write a register and see if works.
43 can_do_pipelined_register_writes(struct brw_context
*brw
)
45 /* Supposedly, Broadwell just works. */
49 /* We use SO_WRITE_OFFSET0 since you're supposed to write it (unlike the
50 * statistics registers), and we already reset it to zero before using it.
52 const int reg
= GEN7_SO_WRITE_OFFSET(0);
53 const int expected_value
= 0x1337d0d0;
54 const int offset
= 100;
56 /* The register we picked only exists on Gen7+. */
57 assert(brw
->gen
== 7);
60 /* Set a value in a BO to a known quantity. The workaround BO already
61 * exists and doesn't contain anything important, so we may as well use it.
63 drm_intel_bo_map(brw
->batch
.workaround_bo
, true);
64 data
= brw
->batch
.workaround_bo
->virtual;
65 data
[offset
] = 0xffffffff;
66 drm_intel_bo_unmap(brw
->batch
.workaround_bo
);
68 /* Write the register. */
70 OUT_BATCH(MI_LOAD_REGISTER_IMM
| (3 - 2));
72 OUT_BATCH(expected_value
);
75 intel_batchbuffer_emit_mi_flush(brw
);
77 /* Save the register's value back to the buffer. */
79 OUT_BATCH(MI_STORE_REGISTER_MEM
| (3 - 2));
81 OUT_RELOC(brw
->batch
.workaround_bo
,
82 I915_GEM_DOMAIN_INSTRUCTION
, I915_GEM_DOMAIN_INSTRUCTION
,
83 offset
* sizeof(uint32_t));
86 intel_batchbuffer_flush(brw
);
88 /* Check whether the value got written. */
89 drm_intel_bo_map(brw
->batch
.workaround_bo
, false);
90 bool success
= data
[offset
] == expected_value
;
91 drm_intel_bo_unmap(brw
->batch
.workaround_bo
);
97 can_write_oacontrol(struct brw_context
*brw
)
99 if (brw
->gen
< 6 || brw
->gen
>= 8)
102 /* Set "Select Context ID" to a particular address (which is likely not a
103 * context), but leave all counting disabled. This should be harmless.
105 const int expected_value
= 0x31337000;
106 const int offset
= 110;
109 /* Set a value in a BO to a known quantity. The workaround BO already
110 * exists and doesn't contain anything important, so we may as well use it.
112 drm_intel_bo_map(brw
->batch
.workaround_bo
, true);
113 data
= brw
->batch
.workaround_bo
->virtual;
114 data
[offset
] = 0xffffffff;
115 drm_intel_bo_unmap(brw
->batch
.workaround_bo
);
117 /* Write OACONTROL. */
119 OUT_BATCH(MI_LOAD_REGISTER_IMM
| (3 - 2));
120 OUT_BATCH(OACONTROL
);
121 OUT_BATCH(expected_value
);
124 intel_batchbuffer_emit_mi_flush(brw
);
126 /* Save the register's value back to the buffer. */
128 OUT_BATCH(MI_STORE_REGISTER_MEM
| (3 - 2));
129 OUT_BATCH(OACONTROL
);
130 OUT_RELOC(brw
->batch
.workaround_bo
,
131 I915_GEM_DOMAIN_INSTRUCTION
, I915_GEM_DOMAIN_INSTRUCTION
,
132 offset
* sizeof(uint32_t));
135 intel_batchbuffer_emit_mi_flush(brw
);
137 /* Set OACONTROL back to zero (everything off). */
139 OUT_BATCH(MI_LOAD_REGISTER_IMM
| (3 - 2));
140 OUT_BATCH(OACONTROL
);
144 intel_batchbuffer_flush(brw
);
146 /* Check whether the value got written. */
147 drm_intel_bo_map(brw
->batch
.workaround_bo
, false);
148 bool success
= data
[offset
] == expected_value
;
149 drm_intel_bo_unmap(brw
->batch
.workaround_bo
);
155 * Initializes potential list of extensions if ctx == NULL, or actually enables
156 * extensions for a context.
159 intelInitExtensions(struct gl_context
*ctx
)
161 struct brw_context
*brw
= brw_context(ctx
);
163 assert(brw
->gen
>= 4);
165 ctx
->Extensions
.ARB_depth_buffer_float
= true;
166 ctx
->Extensions
.ARB_depth_clamp
= true;
167 ctx
->Extensions
.ARB_depth_texture
= true;
168 ctx
->Extensions
.ARB_draw_elements_base_vertex
= true;
169 ctx
->Extensions
.ARB_draw_instanced
= true;
170 ctx
->Extensions
.ARB_ES2_compatibility
= true;
171 ctx
->Extensions
.ARB_explicit_attrib_location
= true;
172 ctx
->Extensions
.ARB_fragment_coord_conventions
= true;
173 ctx
->Extensions
.ARB_fragment_program
= true;
174 ctx
->Extensions
.ARB_fragment_program_shadow
= true;
175 ctx
->Extensions
.ARB_fragment_shader
= true;
176 ctx
->Extensions
.ARB_framebuffer_object
= true;
177 ctx
->Extensions
.ARB_half_float_vertex
= true;
178 ctx
->Extensions
.ARB_instanced_arrays
= true;
179 ctx
->Extensions
.ARB_internalformat_query
= true;
180 ctx
->Extensions
.ARB_map_buffer_range
= true;
181 ctx
->Extensions
.ARB_occlusion_query
= true;
182 ctx
->Extensions
.ARB_occlusion_query2
= true;
183 ctx
->Extensions
.ARB_point_sprite
= true;
184 ctx
->Extensions
.ARB_seamless_cube_map
= true;
185 ctx
->Extensions
.ARB_shader_bit_encoding
= true;
186 ctx
->Extensions
.ARB_shader_texture_lod
= true;
187 ctx
->Extensions
.ARB_shadow
= true;
188 ctx
->Extensions
.ARB_sync
= true;
189 ctx
->Extensions
.ARB_texture_border_clamp
= true;
190 ctx
->Extensions
.ARB_texture_compression_rgtc
= true;
191 ctx
->Extensions
.ARB_texture_cube_map
= true;
192 ctx
->Extensions
.ARB_texture_env_combine
= true;
193 ctx
->Extensions
.ARB_texture_env_crossbar
= true;
194 ctx
->Extensions
.ARB_texture_env_dot3
= true;
195 ctx
->Extensions
.ARB_texture_float
= true;
196 ctx
->Extensions
.ARB_texture_mirror_clamp_to_edge
= true;
197 ctx
->Extensions
.ARB_texture_non_power_of_two
= true;
198 ctx
->Extensions
.ARB_texture_rg
= true;
199 ctx
->Extensions
.ARB_texture_rgb10_a2ui
= true;
200 ctx
->Extensions
.ARB_vertex_program
= true;
201 ctx
->Extensions
.ARB_vertex_shader
= true;
202 ctx
->Extensions
.ARB_vertex_type_2_10_10_10_rev
= true;
203 ctx
->Extensions
.EXT_blend_color
= true;
204 ctx
->Extensions
.EXT_blend_equation_separate
= true;
205 ctx
->Extensions
.EXT_blend_func_separate
= true;
206 ctx
->Extensions
.EXT_blend_minmax
= true;
207 ctx
->Extensions
.EXT_draw_buffers2
= true;
208 ctx
->Extensions
.EXT_framebuffer_sRGB
= true;
209 ctx
->Extensions
.EXT_gpu_program_parameters
= true;
210 ctx
->Extensions
.EXT_packed_float
= true;
211 ctx
->Extensions
.EXT_pixel_buffer_object
= true;
212 ctx
->Extensions
.EXT_point_parameters
= true;
213 ctx
->Extensions
.EXT_provoking_vertex
= true;
214 ctx
->Extensions
.EXT_separate_shader_objects
= true;
215 ctx
->Extensions
.EXT_texture_array
= true;
216 ctx
->Extensions
.EXT_texture_env_dot3
= true;
217 ctx
->Extensions
.EXT_texture_filter_anisotropic
= true;
218 ctx
->Extensions
.EXT_texture_integer
= true;
219 ctx
->Extensions
.EXT_texture_shared_exponent
= true;
220 ctx
->Extensions
.EXT_texture_snorm
= true;
221 ctx
->Extensions
.EXT_texture_sRGB
= true;
222 ctx
->Extensions
.EXT_texture_sRGB_decode
= true;
223 ctx
->Extensions
.EXT_texture_swizzle
= true;
224 ctx
->Extensions
.EXT_stencil_two_side
= true;
225 ctx
->Extensions
.EXT_vertex_array_bgra
= true;
226 ctx
->Extensions
.AMD_seamless_cubemap_per_texture
= true;
227 ctx
->Extensions
.APPLE_object_purgeable
= true;
228 ctx
->Extensions
.ATI_envmap_bumpmap
= true;
229 ctx
->Extensions
.ATI_separate_stencil
= true;
230 ctx
->Extensions
.ATI_texture_env_combine3
= true;
231 ctx
->Extensions
.MESA_pack_invert
= true;
232 ctx
->Extensions
.MESA_ycbcr_texture
= true;
233 ctx
->Extensions
.NV_conditional_render
= true;
234 ctx
->Extensions
.NV_primitive_restart
= true;
235 ctx
->Extensions
.NV_texture_env_combine4
= true;
236 ctx
->Extensions
.NV_texture_rectangle
= true;
237 ctx
->Extensions
.TDFX_texture_compression_FXT1
= true;
238 ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
= true;
239 ctx
->Extensions
.OES_EGL_image
= true;
240 ctx
->Extensions
.OES_draw_texture
= true;
241 ctx
->Extensions
.OES_standard_derivatives
= true;
242 ctx
->Extensions
.OES_EGL_image_external
= true;
245 ctx
->Const
.GLSLVersion
= 330;
246 else if (brw
->gen
>= 6)
247 ctx
->Const
.GLSLVersion
= 140;
249 ctx
->Const
.GLSLVersion
= 120;
250 _mesa_override_glsl_version(ctx
);
255 ctx
->Extensions
.EXT_framebuffer_multisample
= true;
256 ctx
->Extensions
.EXT_transform_feedback
= true;
257 ctx
->Extensions
.EXT_framebuffer_multisample_blit_scaled
= true;
258 ctx
->Extensions
.ARB_blend_func_extended
= !driQueryOptionb(&brw
->optionCache
, "disable_blend_func_extended");
259 ctx
->Extensions
.ARB_draw_buffers_blend
= true;
260 ctx
->Extensions
.ARB_ES3_compatibility
= true;
261 ctx
->Extensions
.ARB_uniform_buffer_object
= true;
262 ctx
->Extensions
.ARB_shading_language_420pack
= true;
263 ctx
->Extensions
.ARB_texture_buffer_object
= true;
264 ctx
->Extensions
.ARB_texture_buffer_object_rgb32
= true;
265 ctx
->Extensions
.ARB_texture_buffer_range
= true;
266 ctx
->Extensions
.ARB_texture_cube_map_array
= true;
267 ctx
->Extensions
.OES_depth_texture_cube_map
= true;
268 ctx
->Extensions
.ARB_shading_language_packing
= true;
269 ctx
->Extensions
.ARB_texture_multisample
= true;
270 ctx
->Extensions
.ARB_sample_shading
= true;
271 ctx
->Extensions
.ARB_vertex_type_10f_11f_11f_rev
= true;
272 ctx
->Extensions
.ARB_texture_gather
= true;
274 /* Test if the kernel has the ioctl. */
275 if (drm_intel_reg_read(brw
->bufmgr
, TIMESTAMP
, &dummy
) == 0)
276 ctx
->Extensions
.ARB_timer_query
= true;
280 ctx
->Extensions
.ARB_texture_query_lod
= true;
281 ctx
->Extensions
.EXT_timer_query
= true;
282 ctx
->Extensions
.EXT_shader_integer_mix
= ctx
->Const
.GLSLVersion
>= 130;
283 ctx
->Extensions
.ARB_texture_query_levels
= ctx
->Const
.GLSLVersion
>= 130;
287 ctx
->Extensions
.ARB_conservative_depth
= true;
288 ctx
->Extensions
.AMD_vertex_shader_layer
= true;
289 if (can_do_pipelined_register_writes(brw
)) {
290 ctx
->Extensions
.ARB_transform_feedback2
= true;
291 ctx
->Extensions
.ARB_transform_feedback3
= true;
292 ctx
->Extensions
.ARB_transform_feedback_instanced
= true;
293 ctx
->Extensions
.ARB_draw_indirect
= true;
296 /* Only enable this in core profile because other parts of Mesa behave
297 * slightly differently when the extension is enabled.
299 if (ctx
->API
== API_OPENGL_CORE
)
300 ctx
->Extensions
.ARB_viewport_array
= true;
302 if (getenv("INTEL_COMPUTE_SHADER"))
303 ctx
->Extensions
.ARB_compute_shader
= true;
307 ctx
->Extensions
.ARB_stencil_texturing
= true;
310 if (brw
->gen
== 5 || can_write_oacontrol(brw
))
311 ctx
->Extensions
.AMD_performance_monitor
= true;
313 if (ctx
->API
== API_OPENGL_CORE
)
314 ctx
->Extensions
.ARB_base_instance
= true;
315 if (ctx
->API
!= API_OPENGL_CORE
)
316 ctx
->Extensions
.ARB_color_buffer_float
= true;
318 if (ctx
->Mesa_DXTn
|| driQueryOptionb(&brw
->optionCache
, "force_s3tc_enable"))
319 ctx
->Extensions
.EXT_texture_compression_s3tc
= true;
321 ctx
->Extensions
.ANGLE_texture_compression_dxt
= true;
324 ctx
->Extensions
.ARB_shader_atomic_counters
= true;