/* * Copyright 2003 VMware, Inc. * All Rights Reserved. * * 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, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR * 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. */ #include "main/version.h" #include "brw_context.h" #include "intel_batchbuffer.h" /** * 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) { /** * gen >= 8 specifically allows these writes. gen <= 6 also * doesn't block them. */ if (brw->gen != 7) return true; static int result = -1; if (result != -1) return result; /* 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+. */ assert(brw->gen == 7); 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. */ drm_intel_bo_map(brw->workaround_bo, true); data = brw->workaround_bo->virtual; data[offset] = 0xffffffff; drm_intel_bo_unmap(brw->workaround_bo); /* Write the register. */ BEGIN_BATCH(3); OUT_BATCH(MI_LOAD_REGISTER_IMM | (3 - 2)); OUT_BATCH(reg); OUT_BATCH(expected_value); ADVANCE_BATCH(); brw_emit_mi_flush(brw); /* Save the register's value back to the buffer. */ BEGIN_BATCH(3); OUT_BATCH(MI_STORE_REGISTER_MEM | (3 - 2)); OUT_BATCH(reg); OUT_RELOC(brw->workaround_bo, I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, offset * sizeof(uint32_t)); ADVANCE_BATCH(); intel_batchbuffer_flush(brw); /* Check whether the value got written. */ drm_intel_bo_map(brw->workaround_bo, false); data = brw->workaround_bo->virtual; bool success = data[offset] == expected_value; drm_intel_bo_unmap(brw->workaround_bo); result = success; return success; } static bool can_write_oacontrol(struct brw_context *brw) { if (brw->gen < 6 || brw->gen >= 8) return false; static int result = -1; if (result != -1) return result; /* 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. */ drm_intel_bo_map(brw->workaround_bo, true); data = brw->workaround_bo->virtual; data[offset] = 0xffffffff; drm_intel_bo_unmap(brw->workaround_bo); /* Write OACONTROL. */ BEGIN_BATCH(3); OUT_BATCH(MI_LOAD_REGISTER_IMM | (3 - 2)); OUT_BATCH(OACONTROL); OUT_BATCH(expected_value); ADVANCE_BATCH(); brw_emit_mi_flush(brw); /* Save the register's value back to the buffer. */ BEGIN_BATCH(3); OUT_BATCH(MI_STORE_REGISTER_MEM | (3 - 2)); OUT_BATCH(OACONTROL); OUT_RELOC(brw->workaround_bo, I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION, offset * sizeof(uint32_t)); ADVANCE_BATCH(); brw_emit_mi_flush(brw); /* 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. */ drm_intel_bo_map(brw->workaround_bo, false); data = brw->workaround_bo->virtual; bool success = data[offset] == expected_value; drm_intel_bo_unmap(brw->workaround_bo); result = success; return success; } /** * Initializes potential list of extensions if ctx == NULL, or actually enables * extensions for a context. */ void intelInitExtensions(struct gl_context *ctx) { struct brw_context *brw = brw_context(ctx); assert(brw->gen >= 4); ctx->Extensions.ARB_arrays_of_arrays = true; ctx->Extensions.ARB_buffer_storage = true; ctx->Extensions.ARB_clear_texture = true; ctx->Extensions.ARB_clip_control = true; ctx->Extensions.ARB_copy_image = true; ctx->Extensions.ARB_depth_buffer_float = true; ctx->Extensions.ARB_depth_clamp = true; ctx->Extensions.ARB_depth_texture = true; ctx->Extensions.ARB_draw_elements_base_vertex = true; ctx->Extensions.ARB_draw_instanced = true; ctx->Extensions.ARB_ES2_compatibility = true; ctx->Extensions.ARB_explicit_attrib_location = true; ctx->Extensions.ARB_explicit_uniform_location = true; ctx->Extensions.ARB_fragment_coord_conventions = true; ctx->Extensions.ARB_fragment_program = true; ctx->Extensions.ARB_fragment_program_shadow = true; ctx->Extensions.ARB_fragment_shader = true; ctx->Extensions.ARB_framebuffer_object = true; ctx->Extensions.ARB_half_float_vertex = true; ctx->Extensions.ARB_instanced_arrays = true; ctx->Extensions.ARB_internalformat_query = true; ctx->Extensions.ARB_internalformat_query2 = true; ctx->Extensions.ARB_map_buffer_range = true; ctx->Extensions.ARB_occlusion_query = true; ctx->Extensions.ARB_occlusion_query2 = true; ctx->Extensions.ARB_pipeline_statistics_query = true; ctx->Extensions.ARB_point_sprite = true; ctx->Extensions.ARB_seamless_cube_map = true; ctx->Extensions.ARB_shader_bit_encoding = true; ctx->Extensions.ARB_shader_draw_parameters = true; ctx->Extensions.ARB_shader_texture_lod = true; ctx->Extensions.ARB_shadow = true; ctx->Extensions.ARB_sync = true; ctx->Extensions.ARB_texture_border_clamp = true; ctx->Extensions.ARB_texture_compression_rgtc = true; 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; ctx->Extensions.ARB_texture_float = true; ctx->Extensions.ARB_texture_mirror_clamp_to_edge = true; ctx->Extensions.ARB_texture_non_power_of_two = true; ctx->Extensions.ARB_texture_rg = true; ctx->Extensions.ARB_texture_rgb10_a2ui = true; ctx->Extensions.ARB_vertex_program = true; ctx->Extensions.ARB_vertex_shader = true; ctx->Extensions.ARB_vertex_type_2_10_10_10_rev = true; ctx->Extensions.ARB_vertex_type_10f_11f_11f_rev = true; 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; ctx->Extensions.EXT_draw_buffers2 = true; ctx->Extensions.EXT_framebuffer_sRGB = true; ctx->Extensions.EXT_gpu_program_parameters = true; ctx->Extensions.EXT_packed_float = true; ctx->Extensions.EXT_pixel_buffer_object = true; ctx->Extensions.EXT_point_parameters = true; ctx->Extensions.EXT_polygon_offset_clamp = true; ctx->Extensions.EXT_provoking_vertex = true; ctx->Extensions.EXT_stencil_two_side = true; ctx->Extensions.EXT_texture_array = true; ctx->Extensions.EXT_texture_env_dot3 = true; ctx->Extensions.EXT_texture_filter_anisotropic = true; ctx->Extensions.EXT_texture_integer = true; ctx->Extensions.EXT_texture_shared_exponent = true; ctx->Extensions.EXT_texture_snorm = true; ctx->Extensions.EXT_texture_sRGB = true; ctx->Extensions.EXT_texture_sRGB_decode = true; ctx->Extensions.EXT_texture_swizzle = true; ctx->Extensions.EXT_vertex_array_bgra = true; ctx->Extensions.AMD_seamless_cubemap_per_texture = true; ctx->Extensions.APPLE_object_purgeable = true; ctx->Extensions.ATI_separate_stencil = true; ctx->Extensions.ATI_texture_env_combine3 = true; ctx->Extensions.MESA_pack_invert = true; ctx->Extensions.NV_conditional_render = true; ctx->Extensions.NV_primitive_restart = true; ctx->Extensions.NV_texture_barrier = true; ctx->Extensions.NV_texture_env_combine4 = true; ctx->Extensions.NV_texture_rectangle = true; ctx->Extensions.TDFX_texture_compression_FXT1 = true; ctx->Extensions.OES_compressed_ETC1_RGB8_texture = true; ctx->Extensions.OES_draw_texture = true; ctx->Extensions.OES_EGL_image = true; ctx->Extensions.OES_EGL_image_external = true; 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; if (brw->gen >= 8) ctx->Const.GLSLVersion = 420; else if (brw->gen >= 6) ctx->Const.GLSLVersion = 330; else ctx->Const.GLSLVersion = 120; _mesa_override_glsl_version(&ctx->Const); 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; } } if (brw->gen >= 6) { ctx->Extensions.ARB_blend_func_extended = !driQueryOptionb(&brw->optionCache, "disable_blend_func_extended"); ctx->Extensions.ARB_conditional_render_inverted = true; ctx->Extensions.ARB_cull_distance = true; ctx->Extensions.ARB_draw_buffers_blend = true; ctx->Extensions.ARB_ES3_compatibility = true; ctx->Extensions.ARB_fragment_layer_viewport = true; ctx->Extensions.ARB_sample_shading = true; ctx->Extensions.ARB_shading_language_420pack = true; ctx->Extensions.ARB_shading_language_packing = true; ctx->Extensions.ARB_texture_buffer_object = true; ctx->Extensions.ARB_texture_buffer_object_rgb32 = true; ctx->Extensions.ARB_texture_buffer_range = true; ctx->Extensions.ARB_texture_cube_map_array = true; ctx->Extensions.ARB_texture_gather = true; ctx->Extensions.ARB_texture_multisample = true; ctx->Extensions.ARB_uniform_buffer_object = true; ctx->Extensions.AMD_vertex_shader_layer = true; 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; ctx->Extensions.OES_sample_variables = true; ctx->Extensions.ARB_timer_query = brw->intelScreen->hw_has_timestamp; /* 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_shader_subroutine = true; ctx->Extensions.ARB_viewport_array = true; ctx->Extensions.AMD_vertex_shader_viewport_index = true; } } brw->predicate.supported = false; brw->can_do_pipelined_register_writes = can_do_pipelined_register_writes(brw); if (brw->gen >= 7) { ctx->Extensions.ARB_conservative_depth = true; ctx->Extensions.ARB_derivative_control = true; ctx->Extensions.ARB_framebuffer_no_attachments = true; ctx->Extensions.ARB_gpu_shader5 = true; ctx->Extensions.ARB_shader_atomic_counters = true; ctx->Extensions.ARB_shader_clock = true; ctx->Extensions.ARB_shader_image_load_store = true; ctx->Extensions.ARB_shader_image_size = true; ctx->Extensions.ARB_shader_texture_image_samples = true; ctx->Extensions.ARB_tessellation_shader = true; ctx->Extensions.ARB_texture_compression_bptc = true; ctx->Extensions.ARB_texture_view = true; ctx->Extensions.ARB_shader_storage_buffer_object = true; ctx->Extensions.EXT_shader_samples_identical = true; ctx->Extensions.OES_texture_buffer = true; if (brw->can_do_pipelined_register_writes) { ctx->Extensions.ARB_draw_indirect = true; ctx->Extensions.ARB_transform_feedback2 = true; ctx->Extensions.ARB_transform_feedback3 = true; ctx->Extensions.ARB_transform_feedback_instanced = true; if ((brw->gen >= 8 || brw->intelScreen->cmd_parser_version >= 5) && ctx->Const.MaxComputeWorkGroupSize[0] >= 1024) ctx->Extensions.ARB_compute_shader = true; if (brw->intelScreen->cmd_parser_version >= 2) brw->predicate.supported = true; } /* 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; ctx->Extensions.ARB_shader_subroutine = true; } } if (brw->intelScreen->has_mi_math_and_lrr) { ctx->Extensions.ARB_query_buffer_object = true; } if (brw->gen >= 8) { ctx->Extensions.ARB_shader_precision = true; ctx->Extensions.ARB_stencil_texturing = true; ctx->Extensions.ARB_texture_stencil8 = true; ctx->Extensions.ARB_gpu_shader_fp64 = true; ctx->Extensions.ARB_vertex_attrib_64bit = true; } if (brw->gen >= 9) { ctx->Extensions.KHR_texture_compression_astc_ldr = true; ctx->Extensions.ARB_shader_stencil_export = true; } 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; if (ctx->Mesa_DXTn || driQueryOptionb(&brw->optionCache, "force_s3tc_enable")) ctx->Extensions.EXT_texture_compression_s3tc = true; ctx->Extensions.ANGLE_texture_compression_dxt = true; }