} bits1;
};
-/* State structs for the various fixed function units:
- */
-
-
-struct thread0
-{
- unsigned pad0:1;
- unsigned grf_reg_count:3;
- unsigned pad1:2;
- unsigned kernel_start_pointer:26; /* Offset from GENERAL_STATE_BASE */
-};
-
-struct thread1
-{
- unsigned ext_halt_exception_enable:1;
- unsigned sw_exception_enable:1;
- unsigned mask_stack_exception_enable:1;
- unsigned timeout_exception_enable:1;
- unsigned illegal_op_exception_enable:1;
- unsigned pad0:3;
- unsigned depth_coef_urb_read_offset:6; /* WM only */
- unsigned pad1:2;
- unsigned floating_point_mode:1;
- unsigned thread_priority:1;
- unsigned binding_table_entry_count:8;
- unsigned pad3:5;
- unsigned single_program_flow:1;
-};
-
-struct thread2
-{
- unsigned per_thread_scratch_space:4;
- unsigned pad0:6;
- unsigned scratch_space_base_pointer:22;
-};
-
-
-struct thread3
-{
- unsigned dispatch_grf_start_reg:4;
- unsigned urb_entry_read_offset:6;
- unsigned pad0:1;
- unsigned urb_entry_read_length:6;
- unsigned pad1:1;
- unsigned const_urb_entry_read_offset:6;
- unsigned pad2:1;
- unsigned const_urb_entry_read_length:6;
- unsigned pad3:1;
-};
-
-
-
-struct brw_clip_unit_state
-{
- struct thread0 thread0;
- struct
- {
- unsigned pad0:7;
- unsigned sw_exception_enable:1;
- unsigned pad1:3;
- unsigned mask_stack_exception_enable:1;
- unsigned pad2:1;
- unsigned illegal_op_exception_enable:1;
- unsigned pad3:2;
- unsigned floating_point_mode:1;
- unsigned thread_priority:1;
- unsigned binding_table_entry_count:8;
- unsigned pad4:5;
- unsigned single_program_flow:1;
- } thread1;
-
- struct thread2 thread2;
- struct thread3 thread3;
-
- struct
- {
- unsigned pad0:9;
- unsigned gs_output_stats:1; /* not always */
- unsigned stats_enable:1;
- unsigned nr_urb_entries:7;
- unsigned pad1:1;
- unsigned urb_entry_allocation_size:5;
- unsigned pad2:1;
- unsigned max_threads:5; /* may be less */
- unsigned pad3:2;
- } thread4;
-
- struct
- {
- unsigned pad0:13;
- unsigned clip_mode:3;
- unsigned userclip_enable_flags:8;
- unsigned userclip_must_clip:1;
- unsigned negative_w_clip_test:1;
- unsigned guard_band_enable:1;
- unsigned viewport_z_clip_enable:1;
- unsigned viewport_xy_clip_enable:1;
- unsigned vertex_position_space:1;
- unsigned api_mode:1;
- unsigned pad2:1;
- } clip5;
-
- struct
- {
- unsigned pad0:5;
- unsigned clipper_viewport_state_ptr:27;
- } clip6;
-
-
- float viewport_xmin;
- float viewport_xmax;
- float viewport_ymin;
- float viewport_ymax;
-};
-
-struct gen6_blend_state
-{
- struct {
- unsigned dest_blend_factor:5;
- unsigned source_blend_factor:5;
- unsigned pad3:1;
- unsigned blend_func:3;
- unsigned pad2:1;
- unsigned ia_dest_blend_factor:5;
- unsigned ia_source_blend_factor:5;
- unsigned pad1:1;
- unsigned ia_blend_func:3;
- unsigned pad0:1;
- unsigned ia_blend_enable:1;
- unsigned blend_enable:1;
- } blend0;
-
- struct {
- unsigned post_blend_clamp_enable:1;
- unsigned pre_blend_clamp_enable:1;
- unsigned clamp_range:2;
- unsigned pad0:4;
- unsigned x_dither_offset:2;
- unsigned y_dither_offset:2;
- unsigned dither_enable:1;
- unsigned alpha_test_func:3;
- unsigned alpha_test_enable:1;
- unsigned pad1:1;
- unsigned logic_op_func:4;
- unsigned logic_op_enable:1;
- unsigned pad2:1;
- unsigned write_disable_b:1;
- unsigned write_disable_g:1;
- unsigned write_disable_r:1;
- unsigned write_disable_a:1;
- unsigned pad3:1;
- unsigned alpha_to_coverage_dither:1;
- unsigned alpha_to_one:1;
- unsigned alpha_to_coverage:1;
- } blend1;
-};
-
-struct gen6_color_calc_state
-{
- struct {
- unsigned alpha_test_format:1;
- unsigned pad0:14;
- unsigned round_disable:1;
- unsigned bf_stencil_ref:8;
- unsigned stencil_ref:8;
- } cc0;
-
- union {
- float alpha_ref_f;
- struct {
- unsigned ui:8;
- unsigned pad0:24;
- } alpha_ref_fi;
- } cc1;
-
- float constant_r;
- float constant_g;
- float constant_b;
- float constant_a;
-};
-
-struct gen6_depth_stencil_state
-{
- struct {
- unsigned pad0:3;
- unsigned bf_stencil_pass_depth_pass_op:3;
- unsigned bf_stencil_pass_depth_fail_op:3;
- unsigned bf_stencil_fail_op:3;
- unsigned bf_stencil_func:3;
- unsigned bf_stencil_enable:1;
- unsigned pad1:2;
- unsigned stencil_write_enable:1;
- unsigned stencil_pass_depth_pass_op:3;
- unsigned stencil_pass_depth_fail_op:3;
- unsigned stencil_fail_op:3;
- unsigned stencil_func:3;
- unsigned stencil_enable:1;
- } ds0;
-
- struct {
- unsigned bf_stencil_write_mask:8;
- unsigned bf_stencil_test_mask:8;
- unsigned stencil_write_mask:8;
- unsigned stencil_test_mask:8;
- } ds1;
-
- struct {
- unsigned pad0:26;
- unsigned depth_write_enable:1;
- unsigned depth_test_func:3;
- unsigned pad1:1;
- unsigned depth_test_enable:1;
- } ds2;
-};
-
-struct brw_cc_unit_state
-{
- struct
- {
- unsigned pad0:3;
- unsigned bf_stencil_pass_depth_pass_op:3;
- unsigned bf_stencil_pass_depth_fail_op:3;
- unsigned bf_stencil_fail_op:3;
- unsigned bf_stencil_func:3;
- unsigned bf_stencil_enable:1;
- unsigned pad1:2;
- unsigned stencil_write_enable:1;
- unsigned stencil_pass_depth_pass_op:3;
- unsigned stencil_pass_depth_fail_op:3;
- unsigned stencil_fail_op:3;
- unsigned stencil_func:3;
- unsigned stencil_enable:1;
- } cc0;
-
-
- struct
- {
- unsigned bf_stencil_ref:8;
- unsigned stencil_write_mask:8;
- unsigned stencil_test_mask:8;
- unsigned stencil_ref:8;
- } cc1;
-
-
- struct
- {
- unsigned logicop_enable:1;
- unsigned pad0:10;
- unsigned depth_write_enable:1;
- unsigned depth_test_function:3;
- unsigned depth_test:1;
- unsigned bf_stencil_write_mask:8;
- unsigned bf_stencil_test_mask:8;
- } cc2;
-
-
- struct
- {
- unsigned pad0:8;
- unsigned alpha_test_func:3;
- unsigned alpha_test:1;
- unsigned blend_enable:1;
- unsigned ia_blend_enable:1;
- unsigned pad1:1;
- unsigned alpha_test_format:1;
- unsigned pad2:16;
- } cc3;
-
- struct
- {
- unsigned pad0:5;
- unsigned cc_viewport_state_offset:27; /* Offset from GENERAL_STATE_BASE */
- } cc4;
-
- struct
- {
- unsigned pad0:2;
- unsigned ia_dest_blend_factor:5;
- unsigned ia_src_blend_factor:5;
- unsigned ia_blend_function:3;
- unsigned statistics_enable:1;
- unsigned logicop_func:4;
- unsigned pad1:11;
- unsigned dither_enable:1;
- } cc5;
-
- struct
- {
- unsigned clamp_post_alpha_blend:1;
- unsigned clamp_pre_alpha_blend:1;
- unsigned clamp_range:2;
- unsigned pad0:11;
- unsigned y_dither_offset:2;
- unsigned x_dither_offset:2;
- unsigned dest_blend_factor:5;
- unsigned src_blend_factor:5;
- unsigned blend_function:3;
- } cc6;
-
- struct {
- union {
- float f;
- uint8_t ub[4];
- } alpha_ref;
- } cc7;
-};
-
-struct brw_sf_unit_state
-{
- struct thread0 thread0;
- struct thread1 thread1;
- struct thread2 thread2;
- struct thread3 thread3;
-
- struct
- {
- unsigned pad0:10;
- unsigned stats_enable:1;
- unsigned nr_urb_entries:7;
- unsigned pad1:1;
- unsigned urb_entry_allocation_size:5;
- unsigned pad2:1;
- unsigned max_threads:6;
- unsigned pad3:1;
- } thread4;
-
- struct
- {
- unsigned front_winding:1;
- unsigned viewport_transform:1;
- unsigned pad0:3;
- unsigned sf_viewport_state_offset:27; /* Offset from GENERAL_STATE_BASE */
- } sf5;
-
- struct
- {
- unsigned pad0:9;
- unsigned dest_org_vbias:4;
- unsigned dest_org_hbias:4;
- unsigned scissor:1;
- unsigned disable_2x2_trifilter:1;
- unsigned disable_zero_pix_trifilter:1;
- unsigned point_rast_rule:2;
- unsigned line_endcap_aa_region_width:2;
- unsigned line_width:4;
- unsigned fast_scissor_disable:1;
- unsigned cull_mode:2;
- unsigned aa_enable:1;
- } sf6;
-
- struct
- {
- unsigned point_size:11;
- unsigned use_point_size_state:1;
- unsigned subpixel_precision:1;
- unsigned sprite_point:1;
- unsigned pad0:10;
- unsigned aa_line_distance_mode:1;
- unsigned trifan_pv:2;
- unsigned linestrip_pv:2;
- unsigned tristrip_pv:2;
- unsigned line_last_pixel_enable:1;
- } sf7;
-
-};
-
-struct gen6_scissor_rect
-{
- unsigned xmin:16;
- unsigned ymin:16;
- unsigned xmax:16;
- unsigned ymax:16;
-};
-
-struct brw_gs_unit_state
-{
- struct thread0 thread0;
- struct thread1 thread1;
- struct thread2 thread2;
- struct thread3 thread3;
-
- struct
- {
- unsigned pad0:8;
- unsigned rendering_enable:1; /* for Ironlake */
- unsigned pad4:1;
- unsigned stats_enable:1;
- unsigned nr_urb_entries:7;
- unsigned pad1:1;
- unsigned urb_entry_allocation_size:5;
- unsigned pad2:1;
- unsigned max_threads:5;
- unsigned pad3:2;
- } thread4;
-
- struct
- {
- unsigned sampler_count:3;
- unsigned pad0:2;
- unsigned sampler_state_pointer:27;
- } gs5;
-
-
- struct
- {
- unsigned max_vp_index:4;
- unsigned pad0:12;
- unsigned svbi_post_inc_value:10;
- unsigned pad1:1;
- unsigned svbi_post_inc_enable:1;
- unsigned svbi_payload:1;
- unsigned discard_adjaceny:1;
- unsigned reorder_enable:1;
- unsigned pad2:1;
- } gs6;
-};
-
-
-struct brw_vs_unit_state
-{
- struct thread0 thread0;
- struct thread1 thread1;
- struct thread2 thread2;
- struct thread3 thread3;
-
- struct
- {
- unsigned pad0:10;
- unsigned stats_enable:1;
- unsigned nr_urb_entries:7;
- unsigned pad1:1;
- unsigned urb_entry_allocation_size:5;
- unsigned pad2:1;
- unsigned max_threads:6;
- unsigned pad3:1;
- } thread4;
-
- struct
- {
- unsigned sampler_count:3;
- unsigned pad0:2;
- unsigned sampler_state_pointer:27;
- } vs5;
-
- struct
- {
- unsigned vs_enable:1;
- unsigned vert_cache_disable:1;
- unsigned pad0:30;
- } vs6;
-};
-
-
-struct brw_wm_unit_state
-{
- struct thread0 thread0;
- struct thread1 thread1;
- struct thread2 thread2;
- struct thread3 thread3;
-
- struct {
- unsigned stats_enable:1;
- unsigned depth_buffer_clear:1;
- unsigned sampler_count:3;
- unsigned sampler_state_pointer:27;
- } wm4;
-
- struct
- {
- unsigned enable_8_pix:1;
- unsigned enable_16_pix:1;
- unsigned enable_32_pix:1;
- unsigned enable_con_32_pix:1;
- unsigned enable_con_64_pix:1;
- unsigned pad0:1;
-
- /* These next four bits are for Ironlake+ */
- unsigned fast_span_coverage_enable:1;
- unsigned depth_buffer_clear:1;
- unsigned depth_buffer_resolve_enable:1;
- unsigned hierarchical_depth_buffer_resolve_enable:1;
-
- unsigned legacy_global_depth_bias:1;
- unsigned line_stipple:1;
- unsigned depth_offset:1;
- unsigned polygon_stipple:1;
- unsigned line_aa_region_width:2;
- unsigned line_endcap_aa_region_width:2;
- unsigned early_depth_test:1;
- unsigned thread_dispatch_enable:1;
- unsigned program_uses_depth:1;
- unsigned program_computes_depth:1;
- unsigned program_uses_killpixel:1;
- unsigned legacy_line_rast: 1;
- unsigned transposed_urb_read_enable:1;
- unsigned max_threads:7;
- } wm5;
-
- float global_depth_offset_constant;
- float global_depth_offset_scale;
-
- /* for Ironlake only */
- struct {
- unsigned pad0:1;
- unsigned grf_reg_count_1:3;
- unsigned pad1:2;
- unsigned kernel_start_pointer_1:26;
- } wm8;
-
- struct {
- unsigned pad0:1;
- unsigned grf_reg_count_2:3;
- unsigned pad1:2;
- unsigned kernel_start_pointer_2:26;
- } wm9;
-
- struct {
- unsigned pad0:1;
- unsigned grf_reg_count_3:3;
- unsigned pad1:2;
- unsigned kernel_start_pointer_3:26;
- } wm10;
-};
-
-struct brw_sampler_default_color {
- float color[4];
-};
-
-struct gen5_sampler_default_color {
- uint8_t ub[4];
- float f[4];
- uint16_t hf[4];
- uint16_t us[4];
- int16_t s[4];
- uint8_t b[4];
-};
-
-struct brw_sampler_state
-{
-
- struct
- {
- unsigned shadow_function:3;
- unsigned lod_bias:11;
- unsigned min_filter:3;
- unsigned mag_filter:3;
- unsigned mip_filter:2;
- unsigned base_level:5;
- unsigned min_mag_neq:1;
- unsigned lod_preclamp:1;
- unsigned default_color_mode:1;
- unsigned pad0:1;
- unsigned disable:1;
- } ss0;
-
- struct
- {
- unsigned r_wrap_mode:3;
- unsigned t_wrap_mode:3;
- unsigned s_wrap_mode:3;
- unsigned cube_control_mode:1;
- unsigned pad:2;
- unsigned max_lod:10;
- unsigned min_lod:10;
- } ss1;
-
-
- struct
- {
- unsigned pad:5;
- unsigned default_color_pointer:27;
- } ss2;
-
- struct
- {
- unsigned non_normalized_coord:1;
- unsigned pad:12;
- unsigned address_round:6;
- unsigned max_aniso:3;
- unsigned chroma_key_mode:1;
- unsigned chroma_key_index:2;
- unsigned chroma_key_enable:1;
- unsigned monochrome_filter_width:3;
- unsigned monochrome_filter_height:3;
- } ss3;
-};
-
-struct gen7_sampler_state
-{
- struct
- {
- unsigned aniso_algorithm:1;
- unsigned lod_bias:13;
- unsigned min_filter:3;
- unsigned mag_filter:3;
- unsigned mip_filter:2;
- unsigned base_level:5;
- unsigned pad1:1;
- unsigned lod_preclamp:1;
- unsigned default_color_mode:1;
- unsigned pad0:1;
- unsigned disable:1;
- } ss0;
-
- struct
- {
- unsigned cube_control_mode:1;
- unsigned shadow_function:3;
- unsigned pad:4;
- unsigned max_lod:12;
- unsigned min_lod:12;
- } ss1;
-
- struct
- {
- unsigned pad:5;
- unsigned default_color_pointer:27;
- } ss2;
-
- struct
- {
- unsigned r_wrap_mode:3;
- unsigned t_wrap_mode:3;
- unsigned s_wrap_mode:3;
- unsigned pad:1;
- unsigned non_normalized_coord:1;
- unsigned trilinear_quality:2;
- unsigned address_round:6;
- unsigned max_aniso:3;
- unsigned chroma_key_mode:1;
- unsigned chroma_key_index:2;
- unsigned chroma_key_enable:1;
- unsigned pad0:6;
- } ss3;
-};
-
-struct brw_clipper_viewport
-{
- float xmin;
- float xmax;
- float ymin;
- float ymax;
-};
-
-struct brw_cc_viewport
-{
- float min_depth;
- float max_depth;
-};
-
-struct brw_sf_viewport
-{
- struct {
- float m00;
- float m11;
- float m22;
- float m30;
- float m31;
- float m32;
- } viewport;
-
- /* scissor coordinates are inclusive */
- struct {
- int16_t xmin;
- int16_t ymin;
- int16_t xmax;
- int16_t ymax;
- } scissor;
-};
-
-struct gen6_sf_viewport {
- float m00;
- float m11;
- float m22;
- float m30;
- float m31;
- float m32;
-};
-
-struct gen7_sf_clip_viewport {
- struct {
- float m00;
- float m11;
- float m22;
- float m30;
- float m31;
- float m32;
- } viewport;
-
- unsigned pad0[2];
-
- struct {
- float xmin;
- float xmax;
- float ymin;
- float ymax;
- } guardband;
-
- float pad1[4];
-};
-
-struct brw_urb_immediate {
- unsigned opcode:4;
- unsigned offset:6;
- unsigned swizzle_control:2;
- unsigned pad:1;
- unsigned allocate:1;
- unsigned used:1;
- unsigned complete:1;
- unsigned response_length:4;
- unsigned msg_length:4;
- unsigned msg_target:4;
- unsigned pad1:3;
- unsigned end_of_thread:1;
-};
-
-/* Instruction format for the execution units:
- */
-
-struct brw_instruction
-{
- struct
- {
- unsigned opcode:7;
- unsigned pad:1;
- unsigned access_mode:1;
- unsigned mask_control:1;
- unsigned dependency_control:2;
- unsigned compression_control:2; /* gen6: quarter control */
- unsigned thread_control:2;
- unsigned predicate_control:4;
- unsigned predicate_inverse:1;
- unsigned execution_size:3;
- /**
- * Conditional Modifier for most instructions. On Gen6+, this is also
- * used for the SEND instruction's Message Target/SFID.
- */
- unsigned destreg__conditionalmod:4;
- unsigned acc_wr_control:1;
- unsigned cmpt_control:1;
- unsigned debug_control:1;
- unsigned saturate:1;
- } header;
-
- union {
- struct
- {
- unsigned dest_reg_file:2;
- unsigned dest_reg_type:3;
- unsigned src0_reg_file:2;
- unsigned src0_reg_type:3;
- unsigned src1_reg_file:2;
- unsigned src1_reg_type:3;
- unsigned nibctrl:1; /* gen7+ */
- unsigned dest_subreg_nr:5;
- unsigned dest_reg_nr:8;
- unsigned dest_horiz_stride:2;
- unsigned dest_address_mode:1;
- } da1;
-
- struct
- {
- unsigned dest_reg_file:2;
- unsigned dest_reg_type:3;
- unsigned src0_reg_file:2;
- unsigned src0_reg_type:3;
- unsigned src1_reg_file:2; /* 0x00000c00 */
- unsigned src1_reg_type:3; /* 0x00007000 */
- unsigned nibctrl:1; /* gen7+ */
- int dest_indirect_offset:10; /* offset against the deref'd address reg */
- unsigned dest_subreg_nr:3; /* subnr for the address reg a0.x */
- unsigned dest_horiz_stride:2;
- unsigned dest_address_mode:1;
- } ia1;
-
- struct
- {
- unsigned dest_reg_file:2;
- unsigned dest_reg_type:3;
- unsigned src0_reg_file:2;
- unsigned src0_reg_type:3;
- unsigned src1_reg_file:2;
- unsigned src1_reg_type:3;
- unsigned nibctrl:1; /* gen7+ */
- unsigned dest_writemask:4;
- unsigned dest_subreg_nr:1;
- unsigned dest_reg_nr:8;
- unsigned dest_horiz_stride:2;
- unsigned dest_address_mode:1;
- } da16;
-
- struct
- {
- unsigned dest_reg_file:2;
- unsigned dest_reg_type:3;
- unsigned src0_reg_file:2;
- unsigned src0_reg_type:3;
- unsigned src1_reg_file:2;
- unsigned src1_reg_type:3;
- unsigned nibctrl:1; /* gen7+ */
- unsigned dest_writemask:4;
- int dest_indirect_offset:6;
- unsigned dest_subreg_nr:3;
- unsigned dest_horiz_stride:2;
- unsigned dest_address_mode:1;
- } ia16;
-
- struct {
- unsigned dest_reg_file:2;
- unsigned dest_reg_type:3;
- unsigned src0_reg_file:2;
- unsigned src0_reg_type:3;
- unsigned src1_reg_file:2;
- unsigned src1_reg_type:3;
- unsigned pad:1;
-
- int jump_count:16;
- } branch_gen6;
-
- struct {
- unsigned dest_reg_file:1; /* gen6, not gen7+ */
- unsigned flag_subreg_num:1;
- unsigned flag_reg_nr:1; /* gen7+ */
- unsigned pad0:1;
- unsigned src0_abs:1;
- unsigned src0_negate:1;
- unsigned src1_abs:1;
- unsigned src1_negate:1;
- unsigned src2_abs:1;
- unsigned src2_negate:1;
- unsigned src_type:2; /* gen7+ */
- unsigned dst_type:2; /* gen7+ */
- unsigned pad1:1;
- unsigned nibctrl:1; /* gen7+ */
- unsigned pad2:1;
- unsigned dest_writemask:4;
- unsigned dest_subreg_nr:3;
- unsigned dest_reg_nr:8;
- } da3src;
-
- uint32_t ud;
- } bits1;
-
-
- union {
- struct
- {
- unsigned src0_subreg_nr:5;
- unsigned src0_reg_nr:8;
- unsigned src0_abs:1;
- unsigned src0_negate:1;
- unsigned src0_address_mode:1;
- unsigned src0_horiz_stride:2;
- unsigned src0_width:3;
- unsigned src0_vert_stride:4;
- unsigned flag_subreg_nr:1;
- unsigned flag_reg_nr:1; /* gen7+ */
- unsigned pad:5;
- } da1;
-
- struct
- {
- int src0_indirect_offset:10;
- unsigned src0_subreg_nr:3;
- unsigned src0_abs:1;
- unsigned src0_negate:1;
- unsigned src0_address_mode:1;
- unsigned src0_horiz_stride:2;
- unsigned src0_width:3;
- unsigned src0_vert_stride:4;
- unsigned flag_subreg_nr:1;
- unsigned flag_reg_nr:1; /* gen7+ */
- unsigned pad:5;
- } ia1;
-
- struct
- {
- unsigned src0_swz_x:2;
- unsigned src0_swz_y:2;
- unsigned src0_subreg_nr:1;
- unsigned src0_reg_nr:8;
- unsigned src0_abs:1;
- unsigned src0_negate:1;
- unsigned src0_address_mode:1;
- unsigned src0_swz_z:2;
- unsigned src0_swz_w:2;
- unsigned pad0:1;
- unsigned src0_vert_stride:4;
- unsigned flag_subreg_nr:1;
- unsigned flag_reg_nr:1; /* gen7+ */
- unsigned pad1:5;
- } da16;
-
- struct
- {
- unsigned src0_swz_x:2;
- unsigned src0_swz_y:2;
- int src0_indirect_offset:6;
- unsigned src0_subreg_nr:3;
- unsigned src0_abs:1;
- unsigned src0_negate:1;
- unsigned src0_address_mode:1;
- unsigned src0_swz_z:2;
- unsigned src0_swz_w:2;
- unsigned pad0:1;
- unsigned src0_vert_stride:4;
- unsigned flag_subreg_nr:1;
- unsigned flag_reg_nr:1; /* gen7+ */
- unsigned pad1:5;
- } ia16;
-
- /* Extended Message Descriptor for Ironlake (Gen5) SEND instruction.
- *
- * Does not apply to Gen6+. The SFID/message target moved to bits
- * 27:24 of the header (destreg__conditionalmod); EOT is in bits3.
- */
- struct
- {
- unsigned pad:26;
- unsigned end_of_thread:1;
- unsigned pad1:1;
- unsigned sfid:4;
- } send_gen5; /* for Ironlake only */
-
- struct {
- unsigned src0_rep_ctrl:1;
- unsigned src0_swizzle:8;
- unsigned src0_subreg_nr:3;
- unsigned src0_reg_nr:8;
- unsigned pad0:1;
- unsigned src1_rep_ctrl:1;
- unsigned src1_swizzle:8;
- unsigned src1_subreg_nr_low:2;
- } da3src;
-
- uint32_t ud;
- } bits2;
-
- union
- {
- struct
- {
- unsigned src1_subreg_nr:5;
- unsigned src1_reg_nr:8;
- unsigned src1_abs:1;
- unsigned src1_negate:1;
- unsigned src1_address_mode:1;
- unsigned src1_horiz_stride:2;
- unsigned src1_width:3;
- unsigned src1_vert_stride:4;
- unsigned pad0:7;
- } da1;
-
- struct
- {
- unsigned src1_swz_x:2;
- unsigned src1_swz_y:2;
- unsigned src1_subreg_nr:1;
- unsigned src1_reg_nr:8;
- unsigned src1_abs:1;
- unsigned src1_negate:1;
- unsigned src1_address_mode:1;
- unsigned src1_swz_z:2;
- unsigned src1_swz_w:2;
- unsigned pad1:1;
- unsigned src1_vert_stride:4;
- unsigned pad2:7;
- } da16;
-
- struct
- {
- int src1_indirect_offset:10;
- unsigned src1_subreg_nr:3;
- unsigned src1_abs:1;
- unsigned src1_negate:1;
- unsigned src1_address_mode:1;
- unsigned src1_horiz_stride:2;
- unsigned src1_width:3;
- unsigned src1_vert_stride:4;
- unsigned pad1:7;
- } ia1;
-
- struct
- {
- unsigned src1_swz_x:2;
- unsigned src1_swz_y:2;
- int src1_indirect_offset:6;
- unsigned src1_subreg_nr:3;
- unsigned src1_abs:1;
- unsigned src1_negate:1;
- unsigned pad0:1;
- unsigned src1_swz_z:2;
- unsigned src1_swz_w:2;
- unsigned pad1:1;
- unsigned src1_vert_stride:4;
- unsigned pad2:7;
- } ia16;
-
-
- struct
- {
- int jump_count:16; /* note: signed */
- unsigned pop_count:4;
- unsigned pad0:12;
- } if_else;
-
- /* This is also used for gen7 IF/ELSE instructions */
- struct
- {
- /* Signed jump distance to the ip to jump to if all channels
- * are disabled after the break or continue. It should point
- * to the end of the innermost control flow block, as that's
- * where some channel could get re-enabled.
- */
- int jip:16;
-
- /* Signed jump distance to the location to resume execution
- * of this channel if it's enabled for the break or continue.
- */
- int uip:16;
- } break_cont;
-
- /**
- * \defgroup SEND instructions / Message Descriptors
- *
- * @{
- */
-
- /**
- * Generic Message Descriptor for Gen4 SEND instructions. The structs
- * below expand function_control to something specific for their
- * message. Due to struct packing issues, they duplicate these bits.
- *
- * See the G45 PRM, Volume 4, Table 14-15.
- */
- struct {
- unsigned function_control:16;
- unsigned response_length:4;
- unsigned msg_length:4;
- unsigned msg_target:4;
- unsigned pad1:3;
- unsigned end_of_thread:1;
- } generic;
-
- /**
- * Generic Message Descriptor for Gen5-7 SEND instructions.
- *
- * See the Sandybridge PRM, Volume 2 Part 2, Table 8-15. (Sadly, most
- * of the information on the SEND instruction is missing from the public
- * Ironlake PRM.)
- *
- * The table claims that bit 31 is reserved/MBZ on Gen6+, but it lies.
- * According to the SEND instruction description:
- * "The MSb of the message description, the EOT field, always comes from
- * bit 127 of the instruction word"...which is bit 31 of this field.
- */
- struct {
- unsigned function_control:19;
- unsigned header_present:1;
- unsigned response_length:5;
- unsigned msg_length:4;
- unsigned pad1:2;
- unsigned end_of_thread:1;
- } generic_gen5;
-
- /** G45 PRM, Volume 4, Section 6.1.1.1 */
- struct {
- unsigned function:4;
- unsigned int_type:1;
- unsigned precision:1;
- unsigned saturate:1;
- unsigned data_type:1;
- unsigned pad0:8;
- unsigned response_length:4;
- unsigned msg_length:4;
- unsigned msg_target:4;
- unsigned pad1:3;
- unsigned end_of_thread:1;
- } math;
-
- /** Ironlake PRM, Volume 4 Part 1, Section 6.1.1.1 */
- struct {
- unsigned function:4;
- unsigned int_type:1;
- unsigned precision:1;
- unsigned saturate:1;
- unsigned data_type:1;
- unsigned snapshot:1;
- unsigned pad0:10;
- unsigned header_present:1;
- unsigned response_length:5;
- unsigned msg_length:4;
- unsigned pad1:2;
- unsigned end_of_thread:1;
- } math_gen5;
-
- /** G45 PRM, Volume 4, Section 4.8.1.1.1 [DevBW] and [DevCL] */
- struct {
- unsigned binding_table_index:8;
- unsigned sampler:4;
- unsigned return_format:2;
- unsigned msg_type:2;
- unsigned response_length:4;
- unsigned msg_length:4;
- unsigned msg_target:4;
- unsigned pad1:3;
- unsigned end_of_thread:1;
- } sampler;
-
- /** G45 PRM, Volume 4, Section 4.8.1.1.2 [DevCTG] */
- struct {
- unsigned binding_table_index:8;
- unsigned sampler:4;
- unsigned msg_type:4;
- unsigned response_length:4;
- unsigned msg_length:4;
- unsigned msg_target:4;
- unsigned pad1:3;
- unsigned end_of_thread:1;
- } sampler_g4x;
-
- /** Ironlake PRM, Volume 4 Part 1, Section 4.11.1.1.3 */
- struct {
- unsigned binding_table_index:8;
- unsigned sampler:4;
- unsigned msg_type:4;
- unsigned simd_mode:2;
- unsigned pad0:1;
- unsigned header_present:1;
- unsigned response_length:5;
- unsigned msg_length:4;
- unsigned pad1:2;
- unsigned end_of_thread:1;
- } sampler_gen5;
-
- struct {
- unsigned binding_table_index:8;
- unsigned sampler:4;
- unsigned msg_type:5;
- unsigned simd_mode:2;
- unsigned header_present:1;
- unsigned response_length:5;
- unsigned msg_length:4;
- unsigned pad1:2;
- unsigned end_of_thread:1;
- } sampler_gen7;
-
- struct brw_urb_immediate urb;
-
- struct {
- unsigned opcode:4;
- unsigned offset:6;
- unsigned swizzle_control:2;
- unsigned pad:1;
- unsigned allocate:1;
- unsigned used:1;
- unsigned complete:1;
- unsigned pad0:3;
- unsigned header_present:1;
- unsigned response_length:5;
- unsigned msg_length:4;
- unsigned pad1:2;
- unsigned end_of_thread:1;
- } urb_gen5;
-
- struct {
- unsigned opcode:3;
- unsigned offset:11;
- unsigned swizzle_control:1;
- unsigned complete:1;
- unsigned per_slot_offset:1;
- unsigned pad0:2;
- unsigned header_present:1;
- unsigned response_length:5;
- unsigned msg_length:4;
- unsigned pad1:2;
- unsigned end_of_thread:1;
- } urb_gen7;
-
- /** 965 PRM, Volume 4, Section 5.10.1.1: Message Descriptor */
- struct {
- unsigned binding_table_index:8;
- unsigned msg_control:4;
- unsigned msg_type:2;
- unsigned target_cache:2;
- unsigned response_length:4;
- unsigned msg_length:4;
- unsigned msg_target:4;
- unsigned pad1:3;
- unsigned end_of_thread:1;
- } dp_read;
-
- /** G45 PRM, Volume 4, Section 5.10.1.1.2 */
- struct {
- unsigned binding_table_index:8;
- unsigned msg_control:3;
- unsigned msg_type:3;
- unsigned target_cache:2;
- unsigned response_length:4;
- unsigned msg_length:4;
- unsigned msg_target:4;
- unsigned pad1:3;
- unsigned end_of_thread:1;
- } dp_read_g4x;
-
- /** Ironlake PRM, Volume 4 Part 1, Section 5.10.2.1.2. */
- struct {
- unsigned binding_table_index:8;
- unsigned msg_control:3;
- unsigned msg_type:3;
- unsigned target_cache:2;
- unsigned pad0:3;
- unsigned header_present:1;
- unsigned response_length:5;
- unsigned msg_length:4;
- unsigned pad1:2;
- unsigned end_of_thread:1;
- } dp_read_gen5;
-
- /** G45 PRM, Volume 4, Section 5.10.1.1.2. For both Gen4 and G45. */
- struct {
- unsigned binding_table_index:8;
- unsigned msg_control:3;
- unsigned last_render_target:1;
- unsigned msg_type:3;
- unsigned send_commit_msg:1;
- unsigned response_length:4;
- unsigned msg_length:4;
- unsigned msg_target:4;
- unsigned pad1:3;
- unsigned end_of_thread:1;
- } dp_write;
-
- /** Ironlake PRM, Volume 4 Part 1, Section 5.10.2.1.2. */
- struct {
- unsigned binding_table_index:8;
- unsigned msg_control:3;
- unsigned last_render_target:1;
- unsigned msg_type:3;
- unsigned send_commit_msg:1;
- unsigned pad0:3;
- unsigned header_present:1;
- unsigned response_length:5;
- unsigned msg_length:4;
- unsigned pad1:2;
- unsigned end_of_thread:1;
- } dp_write_gen5;
-
- /**
- * Message for the Sandybridge Sampler Cache or Constant Cache Data Port.
- *
- * See the Sandybridge PRM, Volume 4 Part 1, Section 3.9.2.1.1.
- **/
- struct {
- unsigned binding_table_index:8;
- unsigned msg_control:5;
- unsigned msg_type:3;
- unsigned pad0:3;
- unsigned header_present:1;
- unsigned response_length:5;
- unsigned msg_length:4;
- unsigned pad1:2;
- unsigned end_of_thread:1;
- } gen6_dp_sampler_const_cache;
-
- /**
- * Message for the Sandybridge Render Cache Data Port.
- *
- * Most fields are defined in the Sandybridge PRM, Volume 4 Part 1,
- * Section 3.9.2.1.1: Message Descriptor.
- *
- * "Slot Group Select" and "Last Render Target" are part of the
- * 5-bit message control for Render Target Write messages. See
- * Section 3.9.9.2.1 of the same volume.
- */
- struct {
- unsigned binding_table_index:8;
- unsigned msg_control:3;
- unsigned slot_group_select:1;
- unsigned last_render_target:1;
- unsigned msg_type:4;
- unsigned send_commit_msg:1;
- unsigned pad0:1;
- unsigned header_present:1;
- unsigned response_length:5;
- unsigned msg_length:4;
- unsigned pad1:2;
- unsigned end_of_thread:1;
- } gen6_dp;
-
- /**
- * Message for any of the Gen7 Data Port caches.
- *
- * Most fields are defined in the Ivybridge PRM, Volume 4 Part 1,
- * section 3.9.2.1.1 "Message Descriptor". Once again, "Slot Group
- * Select" and "Last Render Target" are part of the 6-bit message
- * control for Render Target Writes (section 3.9.11.2).
- */
- struct {
- unsigned binding_table_index:8;
- unsigned msg_control:3;
- unsigned slot_group_select:1;
- unsigned last_render_target:1;
- unsigned msg_control_pad:1;
- unsigned msg_type:4;
- unsigned pad1:1;
- unsigned header_present:1;
- unsigned response_length:5;
- unsigned msg_length:4;
- unsigned pad2:2;
- unsigned end_of_thread:1;
- } gen7_dp;
- /** @} */
-
- struct {
- unsigned src1_subreg_nr_high:1;
- unsigned src1_reg_nr:8;
- unsigned pad0:1;
- unsigned src2_rep_ctrl:1;
- unsigned src2_swizzle:8;
- unsigned src2_subreg_nr:3;
- unsigned src2_reg_nr:8;
- unsigned pad1:2;
- } da3src;
-
- int d;
- unsigned ud;
- float f;
- } bits3;
-};
-
-struct brw_compact_instruction {
- struct {
- unsigned opcode:7; /* 0- 6 */
- unsigned debug_control:1; /* 7- 7 */
- unsigned control_index:5; /* 8-12 */
- unsigned data_type_index:5; /* 13-17 */
- unsigned sub_reg_index:5; /* 18-22 */
- unsigned acc_wr_control:1; /* 23-23 */
- unsigned conditionalmod:4; /* 24-27 */
- unsigned flag_subreg_nr:1; /* 28-28 */
- unsigned cmpt_ctrl:1; /* 29-29 */
- unsigned src0_index:2; /* 30-31 */
- } dw0;
-
- struct {
- unsigned src0_index:3; /* 32-24 */
- unsigned src1_index:5; /* 35-39 */
- unsigned dst_reg_nr:8; /* 40-47 */
- unsigned src0_reg_nr:8; /* 48-55 */
- unsigned src1_reg_nr:8; /* 56-63 */
- } dw1;
-};
-
#endif
projects / mesa.git / blobdiff