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/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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, sub license, 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS 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"
#include "intel_reg.h"
#include "utils.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)
{
/* 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->batch.workaround_bo, true);
data = brw->batch.workaround_bo->virtual;
data[offset] = 0xffffffff;
drm_intel_bo_unmap(brw->batch.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();
intel_batchbuffer_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->batch.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->batch.workaround_bo, false);
bool success = data[offset] == expected_value;
drm_intel_bo_unmap(brw->batch.workaround_bo);
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_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_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_pixel = true;
ctx->Extensions.ARB_half_float_vertex = true;
ctx->Extensions.ARB_instanced_arrays = true;
ctx->Extensions.ARB_internalformat_query = true;
ctx->Extensions.ARB_map_buffer_range = true;
ctx->Extensions.ARB_occlusion_query = true;
ctx->Extensions.ARB_occlusion_query2 = 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_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.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_blit = true;
ctx->Extensions.EXT_framebuffer_sRGB = true;
ctx->Extensions.EXT_gpu_program_parameters = true;
ctx->Extensions.EXT_packed_depth_stencil = true;
ctx->Extensions.EXT_packed_float = true;
ctx->Extensions.EXT_pixel_buffer_object = true;
ctx->Extensions.EXT_point_parameters = true;
ctx->Extensions.EXT_provoking_vertex = true;
ctx->Extensions.EXT_separate_shader_objects = 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_stencil_two_side = 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_envmap_bumpmap = true;
ctx->Extensions.ATI_separate_stencil = true;
ctx->Extensions.ATI_texture_env_combine3 = true;
ctx->Extensions.MESA_pack_invert = true;
ctx->Extensions.MESA_texture_array = true;
ctx->Extensions.MESA_ycbcr_texture = true;
ctx->Extensions.NV_conditional_render = true;
ctx->Extensions.NV_primitive_restart = 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_EGL_image = true;
ctx->Extensions.OES_draw_texture = true;
ctx->Extensions.OES_standard_derivatives = true;
ctx->Extensions.OES_EGL_image_external = true;
if (brw->gen >= 7)
ctx->Const.GLSLVersion = 330;
else if (brw->gen >= 6)
ctx->Const.GLSLVersion = 140;
else
ctx->Const.GLSLVersion = 120;
_mesa_override_glsl_version(ctx);
if (brw->gen >= 6) {
uint64_t dummy;
ctx->Extensions.EXT_framebuffer_multisample = true;
ctx->Extensions.EXT_transform_feedback = true;
ctx->Extensions.EXT_framebuffer_multisample_blit_scaled = true;
ctx->Extensions.ARB_blend_func_extended = !driQueryOptionb(&brw->optionCache, "disable_blend_func_extended");
ctx->Extensions.ARB_draw_buffers_blend = true;
ctx->Extensions.ARB_ES3_compatibility = true;
ctx->Extensions.ARB_uniform_buffer_object = true;
ctx->Extensions.ARB_shading_language_420pack = 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.OES_depth_texture_cube_map = true;
ctx->Extensions.ARB_shading_language_packing = true;
ctx->Extensions.ARB_texture_multisample = true;
/* Test if the kernel has the ioctl. */
if (drm_intel_reg_read(brw->bufmgr, TIMESTAMP, &dummy) == 0)
ctx->Extensions.ARB_timer_query = true;
}
if (brw->gen >= 5) {
ctx->Extensions.ARB_texture_query_lod = true;
ctx->Extensions.EXT_timer_query = true;
ctx->Extensions.EXT_shader_integer_mix = ctx->Const.GLSLVersion >= 130;
ctx->Extensions.ARB_texture_query_levels = ctx->Const.GLSLVersion >= 130;
}
if (brw->gen == 5)
ctx->Extensions.AMD_performance_monitor = true;
if (brw->gen >= 7) {
ctx->Extensions.ARB_texture_gather = true;
ctx->Extensions.ARB_conservative_depth = true;
if (can_do_pipelined_register_writes(brw)) {
ctx->Extensions.ARB_transform_feedback2 = 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;
}
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