diff options
Diffstat (limited to 'src/gallium/drivers/i965simple/brw_eu_emit.c')
| -rw-r--r-- | src/gallium/drivers/i965simple/brw_eu_emit.c | 1080 |
1 files changed, 0 insertions, 1080 deletions
diff --git a/src/gallium/drivers/i965simple/brw_eu_emit.c b/src/gallium/drivers/i965simple/brw_eu_emit.c deleted file mode 100644 index 400a80b6fb..0000000000 --- a/src/gallium/drivers/i965simple/brw_eu_emit.c +++ /dev/null @@ -1,1080 +0,0 @@ -/* - Copyright (C) Intel Corp. 2006. All Rights Reserved. - Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to - develop this 3D driver. - - 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 THE COPYRIGHT OWNER(S) 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. - - **********************************************************************/ - /* - * Authors: - * Keith Whitwell <keith@tungstengraphics.com> - */ - - -#include "brw_context.h" -#include "brw_defines.h" -#include "brw_eu.h" - - - - -/*********************************************************************** - * Internal helper for constructing instructions - */ - -static void guess_execution_size( struct brw_instruction *insn, - struct brw_reg reg ) -{ - if (reg.width == BRW_WIDTH_8 && - insn->header.compression_control == BRW_COMPRESSION_COMPRESSED) - insn->header.execution_size = BRW_EXECUTE_16; - else - insn->header.execution_size = reg.width; /* note - definitions are compatible */ -} - - -static void brw_set_dest( struct brw_instruction *insn, - struct brw_reg dest ) -{ - insn->bits1.da1.dest_reg_file = dest.file; - insn->bits1.da1.dest_reg_type = dest.type; - insn->bits1.da1.dest_address_mode = dest.address_mode; - - if (dest.address_mode == BRW_ADDRESS_DIRECT) { - insn->bits1.da1.dest_reg_nr = dest.nr; - - if (insn->header.access_mode == BRW_ALIGN_1) { - insn->bits1.da1.dest_subreg_nr = dest.subnr; - insn->bits1.da1.dest_horiz_stride = BRW_HORIZONTAL_STRIDE_1; - } - else { - insn->bits1.da16.dest_subreg_nr = dest.subnr / 16; - insn->bits1.da16.dest_writemask = dest.dw1.bits.writemask; - } - } - else { - insn->bits1.ia1.dest_subreg_nr = dest.subnr; - - /* These are different sizes in align1 vs align16: - */ - if (insn->header.access_mode == BRW_ALIGN_1) { - insn->bits1.ia1.dest_indirect_offset = dest.dw1.bits.indirect_offset; - insn->bits1.ia1.dest_horiz_stride = BRW_HORIZONTAL_STRIDE_1; - } - else { - insn->bits1.ia16.dest_indirect_offset = dest.dw1.bits.indirect_offset; - } - } - - /* NEW: Set the execution size based on dest.width and - * insn->compression_control: - */ - guess_execution_size(insn, dest); -} - -static void brw_set_src0( struct brw_instruction *insn, - struct brw_reg reg ) -{ - assert(reg.file != BRW_MESSAGE_REGISTER_FILE); - - insn->bits1.da1.src0_reg_file = reg.file; - insn->bits1.da1.src0_reg_type = reg.type; - insn->bits2.da1.src0_abs = reg.abs; - insn->bits2.da1.src0_negate = reg.negate; - insn->bits2.da1.src0_address_mode = reg.address_mode; - - if (reg.file == BRW_IMMEDIATE_VALUE) { - insn->bits3.ud = reg.dw1.ud; - - /* Required to set some fields in src1 as well: - */ - insn->bits1.da1.src1_reg_file = 0; /* arf */ - insn->bits1.da1.src1_reg_type = reg.type; - } - else - { - if (reg.address_mode == BRW_ADDRESS_DIRECT) { - if (insn->header.access_mode == BRW_ALIGN_1) { - insn->bits2.da1.src0_subreg_nr = reg.subnr; - insn->bits2.da1.src0_reg_nr = reg.nr; - } - else { - insn->bits2.da16.src0_subreg_nr = reg.subnr / 16; - insn->bits2.da16.src0_reg_nr = reg.nr; - } - } - else { - insn->bits2.ia1.src0_subreg_nr = reg.subnr; - - if (insn->header.access_mode == BRW_ALIGN_1) { - insn->bits2.ia1.src0_indirect_offset = reg.dw1.bits.indirect_offset; - } - else { - insn->bits2.ia16.src0_subreg_nr = reg.dw1.bits.indirect_offset; - } - } - - if (insn->header.access_mode == BRW_ALIGN_1) { - if (reg.width == BRW_WIDTH_1 && - insn->header.execution_size == BRW_EXECUTE_1) { - insn->bits2.da1.src0_horiz_stride = BRW_HORIZONTAL_STRIDE_0; - insn->bits2.da1.src0_width = BRW_WIDTH_1; - insn->bits2.da1.src0_vert_stride = BRW_VERTICAL_STRIDE_0; - } - else { - insn->bits2.da1.src0_horiz_stride = reg.hstride; - insn->bits2.da1.src0_width = reg.width; - insn->bits2.da1.src0_vert_stride = reg.vstride; - } - } - else { - insn->bits2.da16.src0_swz_x = BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_X); - insn->bits2.da16.src0_swz_y = BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_Y); - insn->bits2.da16.src0_swz_z = BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_Z); - insn->bits2.da16.src0_swz_w = BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_W); - - /* This is an oddity of the fact we're using the same - * descriptions for registers in align_16 as align_1: - */ - if (reg.vstride == BRW_VERTICAL_STRIDE_8) - insn->bits2.da16.src0_vert_stride = BRW_VERTICAL_STRIDE_4; - else - insn->bits2.da16.src0_vert_stride = reg.vstride; - } - } -} - - -void brw_set_src1( struct brw_instruction *insn, - struct brw_reg reg ) -{ - assert(reg.file != BRW_MESSAGE_REGISTER_FILE); - - insn->bits1.da1.src1_reg_file = reg.file; - insn->bits1.da1.src1_reg_type = reg.type; - insn->bits3.da1.src1_abs = reg.abs; - insn->bits3.da1.src1_negate = reg.negate; - - /* Only src1 can be immediate in two-argument instructions. - */ - assert(insn->bits1.da1.src0_reg_file != BRW_IMMEDIATE_VALUE); - - if (reg.file == BRW_IMMEDIATE_VALUE) { - insn->bits3.ud = reg.dw1.ud; - } - else { - /* This is a hardware restriction, which may or may not be lifted - * in the future: - */ - assert (reg.address_mode == BRW_ADDRESS_DIRECT); - //assert (reg.file == BRW_GENERAL_REGISTER_FILE); - - if (insn->header.access_mode == BRW_ALIGN_1) { - insn->bits3.da1.src1_subreg_nr = reg.subnr; - insn->bits3.da1.src1_reg_nr = reg.nr; - } - else { - insn->bits3.da16.src1_subreg_nr = reg.subnr / 16; - insn->bits3.da16.src1_reg_nr = reg.nr; - } - - if (insn->header.access_mode == BRW_ALIGN_1) { - if (reg.width == BRW_WIDTH_1 && - insn->header.execution_size == BRW_EXECUTE_1) { - insn->bits3.da1.src1_horiz_stride = BRW_HORIZONTAL_STRIDE_0; - insn->bits3.da1.src1_width = BRW_WIDTH_1; - insn->bits3.da1.src1_vert_stride = BRW_VERTICAL_STRIDE_0; - } - else { - insn->bits3.da1.src1_horiz_stride = reg.hstride; - insn->bits3.da1.src1_width = reg.width; - insn->bits3.da1.src1_vert_stride = reg.vstride; - } - } - else { - insn->bits3.da16.src1_swz_x = BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_X); - insn->bits3.da16.src1_swz_y = BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_Y); - insn->bits3.da16.src1_swz_z = BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_Z); - insn->bits3.da16.src1_swz_w = BRW_GET_SWZ(reg.dw1.bits.swizzle, BRW_CHANNEL_W); - - /* This is an oddity of the fact we're using the same - * descriptions for registers in align_16 as align_1: - */ - if (reg.vstride == BRW_VERTICAL_STRIDE_8) - insn->bits3.da16.src1_vert_stride = BRW_VERTICAL_STRIDE_4; - else - insn->bits3.da16.src1_vert_stride = reg.vstride; - } - } -} - - - -static void brw_set_math_message( struct brw_instruction *insn, - unsigned msg_length, - unsigned response_length, - unsigned function, - unsigned integer_type, - boolean low_precision, - boolean saturate, - unsigned dataType ) -{ - brw_set_src1(insn, brw_imm_d(0)); - - insn->bits3.math.function = function; - insn->bits3.math.int_type = integer_type; - insn->bits3.math.precision = low_precision; - insn->bits3.math.saturate = saturate; - insn->bits3.math.data_type = dataType; - insn->bits3.math.response_length = response_length; - insn->bits3.math.msg_length = msg_length; - insn->bits3.math.msg_target = BRW_MESSAGE_TARGET_MATH; - insn->bits3.math.end_of_thread = 0; -} - -static void brw_set_urb_message( struct brw_instruction *insn, - boolean allocate, - boolean used, - unsigned msg_length, - unsigned response_length, - boolean end_of_thread, - boolean complete, - unsigned offset, - unsigned swizzle_control ) -{ - brw_set_src1(insn, brw_imm_d(0)); - - insn->bits3.urb.opcode = 0; /* ? */ - insn->bits3.urb.offset = offset; - insn->bits3.urb.swizzle_control = swizzle_control; - insn->bits3.urb.allocate = allocate; - insn->bits3.urb.used = used; /* ? */ - insn->bits3.urb.complete = complete; - insn->bits3.urb.response_length = response_length; - insn->bits3.urb.msg_length = msg_length; - insn->bits3.urb.msg_target = BRW_MESSAGE_TARGET_URB; - insn->bits3.urb.end_of_thread = end_of_thread; -} - -static void brw_set_dp_write_message( struct brw_instruction *insn, - unsigned binding_table_index, - unsigned msg_control, - unsigned msg_type, - unsigned msg_length, - unsigned pixel_scoreboard_clear, - unsigned response_length, - unsigned end_of_thread ) -{ - brw_set_src1(insn, brw_imm_d(0)); - - insn->bits3.dp_write.binding_table_index = binding_table_index; - insn->bits3.dp_write.msg_control = msg_control; - insn->bits3.dp_write.pixel_scoreboard_clear = pixel_scoreboard_clear; - insn->bits3.dp_write.msg_type = msg_type; - insn->bits3.dp_write.send_commit_msg = 0; - insn->bits3.dp_write.response_length = response_length; - insn->bits3.dp_write.msg_length = msg_length; - insn->bits3.dp_write.msg_target = BRW_MESSAGE_TARGET_DATAPORT_WRITE; - insn->bits3.urb.end_of_thread = end_of_thread; -} - -static void brw_set_dp_read_message( struct brw_instruction *insn, - unsigned binding_table_index, - unsigned msg_control, - unsigned msg_type, - unsigned target_cache, - unsigned msg_length, - unsigned response_length, - unsigned end_of_thread ) -{ - brw_set_src1(insn, brw_imm_d(0)); - - insn->bits3.dp_read.binding_table_index = binding_table_index; - insn->bits3.dp_read.msg_control = msg_control; - insn->bits3.dp_read.msg_type = msg_type; - insn->bits3.dp_read.target_cache = target_cache; - insn->bits3.dp_read.response_length = response_length; - insn->bits3.dp_read.msg_length = msg_length; - insn->bits3.dp_read.msg_target = BRW_MESSAGE_TARGET_DATAPORT_READ; - insn->bits3.dp_read.end_of_thread = end_of_thread; -} - -static void brw_set_sampler_message( struct brw_instruction *insn, - unsigned binding_table_index, - unsigned sampler, - unsigned msg_type, - unsigned response_length, - unsigned msg_length, - boolean eot) -{ - brw_set_src1(insn, brw_imm_d(0)); - - insn->bits3.sampler.binding_table_index = binding_table_index; - insn->bits3.sampler.sampler = sampler; - insn->bits3.sampler.msg_type = msg_type; - insn->bits3.sampler.return_format = BRW_SAMPLER_RETURN_FORMAT_FLOAT32; - insn->bits3.sampler.response_length = response_length; - insn->bits3.sampler.msg_length = msg_length; - insn->bits3.sampler.end_of_thread = eot; - insn->bits3.sampler.msg_target = BRW_MESSAGE_TARGET_SAMPLER; -} - - - -static struct brw_instruction *next_insn( struct brw_compile *p, - unsigned opcode ) -{ - struct brw_instruction *insn; - - assert(p->nr_insn + 1 < BRW_EU_MAX_INSN); - - insn = &p->store[p->nr_insn++]; - memcpy(insn, p->current, sizeof(*insn)); - - /* Reset this one-shot flag: - */ - - if (p->current->header.destreg__conditonalmod) { - p->current->header.destreg__conditonalmod = 0; - p->current->header.predicate_control = BRW_PREDICATE_NORMAL; - } - - insn->header.opcode = opcode; - return insn; -} - - -struct brw_instruction *brw_alu1( struct brw_compile *p, - unsigned opcode, - struct brw_reg dest, - struct brw_reg src ) -{ - struct brw_instruction *insn = next_insn(p, opcode); - brw_set_dest(insn, dest); - brw_set_src0(insn, src); - return insn; -} - -struct brw_instruction *brw_alu2(struct brw_compile *p, - unsigned opcode, - struct brw_reg dest, - struct brw_reg src0, - struct brw_reg src1 ) -{ - struct brw_instruction *insn = next_insn(p, opcode); - brw_set_dest(insn, dest); - brw_set_src0(insn, src0); - brw_set_src1(insn, src1); - return insn; -} - - -/*********************************************************************** - * Convenience routines. - */ -#define ALU1(OP) \ -struct brw_instruction *brw_##OP(struct brw_compile *p, \ - struct brw_reg dest, \ - struct brw_reg src0) \ -{ \ - return brw_alu1(p, BRW_OPCODE_##OP, dest, src0); \ -} - -#define ALU2(OP) \ -struct brw_instruction *brw_##OP(struct brw_compile *p, \ - struct brw_reg dest, \ - struct brw_reg src0, \ - struct brw_reg src1) \ -{ \ - return brw_alu2(p, BRW_OPCODE_##OP, dest, src0, src1); \ -} - - -ALU1(MOV) -ALU2(SEL) -ALU1(NOT) -ALU2(AND) -ALU2(OR) -ALU2(XOR) -ALU2(SHR) -ALU2(SHL) -ALU2(RSR) -ALU2(RSL) -ALU2(ASR) -ALU2(ADD) -ALU2(MUL) -ALU1(FRC) -ALU1(RNDD) -ALU2(MAC) -ALU2(MACH) -ALU1(LZD) -ALU2(DP4) -ALU2(DPH) -ALU2(DP3) -ALU2(DP2) -ALU2(LINE) - - - - -void brw_NOP(struct brw_compile *p) -{ - struct brw_instruction *insn = next_insn(p, BRW_OPCODE_NOP); - brw_set_dest(insn, retype(brw_vec4_grf(0,0), BRW_REGISTER_TYPE_UD)); - brw_set_src0(insn, retype(brw_vec4_grf(0,0), BRW_REGISTER_TYPE_UD)); - brw_set_src1(insn, brw_imm_ud(0x0)); -} - - - - - -/*********************************************************************** - * Comparisons, if/else/endif - */ - -struct brw_instruction *brw_JMPI(struct brw_compile *p, - struct brw_reg dest, - struct brw_reg src0, - struct brw_reg src1) -{ - struct brw_instruction *insn = brw_alu2(p, BRW_OPCODE_JMPI, dest, src0, src1); - - p->current->header.predicate_control = BRW_PREDICATE_NONE; - - return insn; -} - -/* EU takes the value from the flag register and pushes it onto some - * sort of a stack (presumably merging with any flag value already on - * the stack). Within an if block, the flags at the top of the stack - * control execution on each channel of the unit, eg. on each of the - * 16 pixel values in our wm programs. - * - * When the matching 'else' instruction is reached (presumably by - * countdown of the instruction count patched in by our ELSE/ENDIF - * functions), the relevent flags are inverted. - * - * When the matching 'endif' instruction is reached, the flags are - * popped off. If the stack is now empty, normal execution resumes. - * - * No attempt is made to deal with stack overflow (14 elements?). - */ -struct brw_instruction *brw_IF(struct brw_compile *p, unsigned execute_size) -{ - struct brw_instruction *insn; - - if (p->single_program_flow) { - assert(execute_size == BRW_EXECUTE_1); - - insn = next_insn(p, BRW_OPCODE_ADD); - insn->header.predicate_inverse = 1; - } else { - insn = next_insn(p, BRW_OPCODE_IF); - } - - /* Override the defaults for this instruction: - */ - brw_set_dest(insn, brw_ip_reg()); - brw_set_src0(insn, brw_ip_reg()); - brw_set_src1(insn, brw_imm_d(0x0)); - - insn->header.execution_size = execute_size; - insn->header.compression_control = BRW_COMPRESSION_NONE; - insn->header.predicate_control = BRW_PREDICATE_NORMAL; - insn->header.mask_control = BRW_MASK_ENABLE; - - p->current->header.predicate_control = BRW_PREDICATE_NONE; - - return insn; -} - - -struct brw_instruction *brw_ELSE(struct brw_compile *p, - struct brw_instruction *if_insn) -{ - struct brw_instruction *insn; - - if (p->single_program_flow) { - insn = next_insn(p, BRW_OPCODE_ADD); - } else { - insn = next_insn(p, BRW_OPCODE_ELSE); - } - - brw_set_dest(insn, brw_ip_reg()); - brw_set_src0(insn, brw_ip_reg()); - brw_set_src1(insn, brw_imm_d(0x0)); - - insn->header.compression_control = BRW_COMPRESSION_NONE; - insn->header.execution_size = if_insn->header.execution_size; - insn->header.mask_control = BRW_MASK_ENABLE; - - /* Patch the if instruction to point at this instruction. - */ - if (p->single_program_flow) { - assert(if_insn->header.opcode == BRW_OPCODE_ADD); - - if_insn->bits3.ud = (insn - if_insn + 1) * 16; - } else { - assert(if_insn->header.opcode == BRW_OPCODE_IF); - - if_insn->bits3.if_else.jump_count = insn - if_insn; - if_insn->bits3.if_else.pop_count = 1; - if_insn->bits3.if_else.pad0 = 0; - } - - return insn; -} - -void brw_ENDIF(struct brw_compile *p, - struct brw_instruction *patch_insn) -{ - if (p->single_program_flow) { - /* In single program flow mode, there's no need to execute an ENDIF, - * since we don't need to do any stack operations, and if we're executing - * currently, we want to just continue executing. - */ - struct brw_instruction *next = &p->store[p->nr_insn]; - - assert(patch_insn->header.opcode == BRW_OPCODE_ADD); - - patch_insn->bits3.ud = (next - patch_insn) * 16; - } else { - struct brw_instruction *insn = next_insn(p, BRW_OPCODE_ENDIF); - - brw_set_dest(insn, retype(brw_vec4_grf(0,0), BRW_REGISTER_TYPE_UD)); - brw_set_src0(insn, retype(brw_vec4_grf(0,0), BRW_REGISTER_TYPE_UD)); - brw_set_src1(insn, brw_imm_d(0x0)); - - insn->header.compression_control = BRW_COMPRESSION_NONE; - insn->header.execution_size = patch_insn->header.execution_size; - insn->header.mask_control = BRW_MASK_ENABLE; - - assert(patch_insn->bits3.if_else.jump_count == 0); - - /* Patch the if or else instructions to point at this or the next - * instruction respectively. - */ - if (patch_insn->header.opcode == BRW_OPCODE_IF) { - /* Automagically turn it into an IFF: - */ - patch_insn->header.opcode = BRW_OPCODE_IFF; - patch_insn->bits3.if_else.jump_count = insn - patch_insn + 1; - patch_insn->bits3.if_else.pop_count = 0; - patch_insn->bits3.if_else.pad0 = 0; - } else if (patch_insn->header.opcode == BRW_OPCODE_ELSE) { - patch_insn->bits3.if_else.jump_count = insn - patch_insn + 1; - patch_insn->bits3.if_else.pop_count = 1; - patch_insn->bits3.if_else.pad0 = 0; - } else { - assert(0); - } - - /* Also pop item off the stack in the endif instruction: - */ - insn->bits3.if_else.jump_count = 0; - insn->bits3.if_else.pop_count = 1; - insn->bits3.if_else.pad0 = 0; - } -} - -struct brw_instruction *brw_BREAK(struct brw_compile *p) -{ - struct brw_instruction *insn; - insn = next_insn(p, BRW_OPCODE_BREAK); - brw_set_dest(insn, brw_ip_reg()); - brw_set_src0(insn, brw_ip_reg()); - brw_set_src1(insn, brw_imm_d(0x0)); - insn->header.compression_control = BRW_COMPRESSION_NONE; - insn->header.execution_size = BRW_EXECUTE_8; - insn->header.mask_control = BRW_MASK_DISABLE; - insn->bits3.if_else.pad0 = 0; - return insn; -} - -struct brw_instruction *brw_CONT(struct brw_compile *p) -{ - struct brw_instruction *insn; - insn = next_insn(p, BRW_OPCODE_CONTINUE); - brw_set_dest(insn, brw_ip_reg()); - brw_set_src0(insn, brw_ip_reg()); - brw_set_src1(insn, brw_imm_d(0x0)); - insn->header.compression_control = BRW_COMPRESSION_NONE; - insn->header.execution_size = BRW_EXECUTE_8; - insn->header.mask_control = BRW_MASK_DISABLE; - insn->bits3.if_else.pad0 = 0; - return insn; -} - -/* DO/WHILE loop: - */ -struct brw_instruction *brw_DO(struct brw_compile *p, unsigned execute_size) -{ - if (p->single_program_flow) { - return &p->store[p->nr_insn]; - } else { - struct brw_instruction *insn = next_insn(p, BRW_OPCODE_DO); - - /* Override the defaults for this instruction: - */ - brw_set_dest(insn, brw_null_reg()); - brw_set_src0(insn, brw_null_reg()); - brw_set_src1(insn, brw_null_reg()); - - insn->header.compression_control = BRW_COMPRESSION_NONE; - insn->header.execution_size = execute_size; - insn->header.predicate_control = BRW_PREDICATE_NONE; - /* insn->header.mask_control = BRW_MASK_ENABLE; */ - insn->header.mask_control = BRW_MASK_DISABLE; - - return insn; - } -} - - - -struct brw_instruction *brw_WHILE(struct brw_compile *p, - struct brw_instruction *do_insn) -{ - struct brw_instruction *insn; - - if (p->single_program_flow) - insn = next_insn(p, BRW_OPCODE_ADD); - else - insn = next_insn(p, BRW_OPCODE_WHILE); - - brw_set_dest(insn, brw_ip_reg()); - brw_set_src0(insn, brw_ip_reg()); - brw_set_src1(insn, brw_imm_d(0x0)); - - insn->header.compression_control = BRW_COMPRESSION_NONE; - - if (p->single_program_flow) { - insn->header.execution_size = BRW_EXECUTE_1; - - insn->bits3.d = (do_insn - insn) * 16; - } else { - insn->header.execution_size = do_insn->header.execution_size; - - assert(do_insn->header.opcode == BRW_OPCODE_DO); - insn->bits3.if_else.jump_count = do_insn - insn; - insn->bits3.if_else.pop_count = 0; - insn->bits3.if_else.pad0 = 0; - } - -/* insn->header.mask_control = BRW_MASK_ENABLE; */ - - insn->header.mask_control = BRW_MASK_DISABLE; - p->current->header.predicate_control = BRW_PREDICATE_NONE; - return insn; -} - - -/* FORWARD JUMPS: - */ -void brw_land_fwd_jump(struct brw_compile *p, - struct brw_instruction *jmp_insn) -{ - struct brw_instruction *landing = &p->store[p->nr_insn]; - - assert(jmp_insn->header.opcode == BRW_OPCODE_JMPI); - assert(jmp_insn->bits1.da1.src1_reg_file = BRW_IMMEDIATE_VALUE); - - jmp_insn->bits3.ud = (landing - jmp_insn) - 1; -} - - - -/* To integrate with the above, it makes sense that the comparison - * instruction should populate the flag register. It might be simpler - * just to use the flag reg for most WM tasks? - */ -void brw_CMP(struct brw_compile *p, - struct brw_reg dest, - unsigned conditional, - struct brw_reg src0, - struct brw_reg src1) -{ - struct brw_instruction *insn = next_insn(p, BRW_OPCODE_CMP); - - insn->header.destreg__conditonalmod = conditional; - brw_set_dest(insn, dest); - brw_set_src0(insn, src0); - brw_set_src1(insn, src1); - -/* guess_execution_size(insn, src0); */ - - - /* Make it so that future instructions will use the computed flag - * value until brw_set_predicate_control_flag_value() is called - * again. - */ - if (dest.file == BRW_ARCHITECTURE_REGISTER_FILE && - dest.nr == 0) { - p->current->header.predicate_control = BRW_PREDICATE_NORMAL; - p->flag_value = 0xff; - } -} - - - -/*********************************************************************** - * Helpers for the various SEND message types: - */ - -/* Invert 8 values - */ -void brw_math( struct brw_compile *p, - struct brw_reg dest, - unsigned function, - unsigned saturate, - unsigned msg_reg_nr, - struct brw_reg src, - unsigned data_type, - unsigned precision ) -{ - struct brw_instruction *insn = next_insn(p, BRW_OPCODE_SEND); - unsigned msg_length = (function == BRW_MATH_FUNCTION_POW) ? 2 : 1; - unsigned response_length = (function == BRW_MATH_FUNCTION_SINCOS) ? 2 : 1; - - /* Example code doesn't set predicate_control for send - * instructions. - */ - insn->header.predicate_control = 0; - insn->header.destreg__conditonalmod = msg_reg_nr; - - brw_set_dest(insn, dest); - brw_set_src0(insn, src); - brw_set_math_message(insn, - msg_length, response_length, - function, - BRW_MATH_INTEGER_UNSIGNED, - precision, - saturate, - data_type); -} - -/* Use 2 send instructions to invert 16 elements - */ -void brw_math_16( struct brw_compile *p, - struct brw_reg dest, - unsigned function, - unsigned saturate, - unsigned msg_reg_nr, - struct brw_reg src, - unsigned precision ) -{ - struct brw_instruction *insn; - unsigned msg_length = (function == BRW_MATH_FUNCTION_POW) ? 2 : 1; - unsigned response_length = (function == BRW_MATH_FUNCTION_SINCOS) ? 2 : 1; - - /* First instruction: - */ - brw_push_insn_state(p); - brw_set_predicate_control_flag_value(p, 0xff); - brw_set_compression_control(p, BRW_COMPRESSION_NONE); - - insn = next_insn(p, BRW_OPCODE_SEND); - insn->header.destreg__conditonalmod = msg_reg_nr; - - brw_set_dest(insn, dest); - brw_set_src0(insn, src); - brw_set_math_message(insn, - msg_length, response_length, - function, - BRW_MATH_INTEGER_UNSIGNED, - precision, - saturate, - BRW_MATH_DATA_VECTOR); - - /* Second instruction: - */ - insn = next_insn(p, BRW_OPCODE_SEND); - insn->header.compression_control = BRW_COMPRESSION_2NDHALF; - insn->header.destreg__conditonalmod = msg_reg_nr+1; - - brw_set_dest(insn, offset(dest,1)); - brw_set_src0(insn, src); - brw_set_math_message(insn, - msg_length, response_length, - function, - BRW_MATH_INTEGER_UNSIGNED, - precision, - saturate, - BRW_MATH_DATA_VECTOR); - - brw_pop_insn_state(p); -} - - - - -void brw_dp_WRITE_16( struct brw_compile *p, - struct brw_reg src, - unsigned msg_reg_nr, - unsigned scratch_offset ) -{ - { - brw_push_insn_state(p); - brw_set_mask_control(p, BRW_MASK_DISABLE); - brw_set_compression_control(p, BRW_COMPRESSION_NONE); - - brw_MOV(p, - retype(brw_vec1_grf(0, 2), BRW_REGISTER_TYPE_D), - brw_imm_d(scratch_offset)); - - brw_pop_insn_state(p); - } - - { - unsigned msg_length = 3; - struct brw_reg dest = retype(brw_null_reg(), BRW_REGISTER_TYPE_UW); - struct brw_instruction *insn = next_insn(p, BRW_OPCODE_SEND); - - insn->header.predicate_control = 0; /* XXX */ - insn->header.compression_control = BRW_COMPRESSION_NONE; - insn->header.destreg__conditonalmod = msg_reg_nr; - - brw_set_dest(insn, dest); - brw_set_src0(insn, src); - - brw_set_dp_write_message(insn, - 255, /* bti */ - BRW_DATAPORT_OWORD_BLOCK_4_OWORDS, /* msg_control */ - BRW_DATAPORT_WRITE_MESSAGE_OWORD_BLOCK_WRITE, /* msg_type */ - msg_length, - 0, /* pixel scoreboard */ - 0, /* response_length */ - 0); /* eot */ - } - -} - - -void brw_dp_READ_16( struct brw_compile *p, - struct brw_reg dest, - unsigned msg_reg_nr, - unsigned scratch_offset ) -{ - { - brw_push_insn_state(p); - brw_set_compression_control(p, BRW_COMPRESSION_NONE); - brw_set_mask_control(p, BRW_MASK_DISABLE); - - brw_MOV(p, - retype(brw_vec1_grf(0, 2), BRW_REGISTER_TYPE_D), - brw_imm_d(scratch_offset)); - - brw_pop_insn_state(p); - } - - { - struct brw_instruction *insn = next_insn(p, BRW_OPCODE_SEND); - - insn->header.predicate_control = 0; /* XXX */ - insn->header.compression_control = BRW_COMPRESSION_NONE; - insn->header.destreg__conditonalmod = msg_reg_nr; - - brw_set_dest(insn, dest); /* UW? */ - brw_set_src0(insn, retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW)); - - brw_set_dp_read_message(insn, - 255, /* bti */ - 3, /* msg_control */ - BRW_DATAPORT_READ_MESSAGE_OWORD_BLOCK_READ, /* msg_type */ - 1, /* target cache */ - 1, /* msg_length */ - 2, /* response_length */ - 0); /* eot */ - } -} - - -void brw_fb_WRITE(struct brw_compile *p, - struct brw_reg dest, - unsigned msg_reg_nr, - struct brw_reg src0, - unsigned binding_table_index, - unsigned msg_length, - unsigned response_length, - boolean eot) -{ - struct brw_instruction *insn = next_insn(p, BRW_OPCODE_SEND); - - insn->header.predicate_control = 0; /* XXX */ - insn->header.compression_control = BRW_COMPRESSION_NONE; - insn->header.destreg__conditonalmod = msg_reg_nr; - - brw_set_dest(insn, dest); - brw_set_src0(insn, src0); - brw_set_dp_write_message(insn, - binding_table_index, - BRW_DATAPORT_RENDER_TARGET_WRITE_SIMD16_SINGLE_SOURCE, /* msg_control */ - BRW_DATAPORT_WRITE_MESSAGE_RENDER_TARGET_WRITE, /* msg_type */ - msg_length, - 1, /* pixel scoreboard */ - response_length, - eot); -} - - - -void brw_SAMPLE(struct brw_compile *p, - struct brw_reg dest, - unsigned msg_reg_nr, - struct brw_reg src0, - unsigned binding_table_index, - unsigned sampler, - unsigned writemask, - unsigned msg_type, - unsigned response_length, - unsigned msg_length, - boolean eot) -{ - boolean need_stall = 0; - - if(writemask == 0) { -/* debug_printf("%s: zero writemask??\n", __FUNCTION__); */ - return; - } - - /* Hardware doesn't do destination dependency checking on send - * instructions properly. Add a workaround which generates the - * dependency by other means. In practice it seems like this bug - * only crops up for texture samples, and only where registers are - * written by the send and then written again later without being - * read in between. Luckily for us, we already track that - * information and use it to modify the writemask for the - * instruction, so that is a guide for whether a workaround is - * needed. - */ - if (writemask != TGSI_WRITEMASK_XYZW) { - unsigned dst_offset = 0; - unsigned i, newmask = 0, len = 0; - - for (i = 0; i < 4; i++) { - if (writemask & (1<<i)) - break; - dst_offset += 2; - } - for (; i < 4; i++) { - if (!(writemask & (1<<i))) - break; - newmask |= 1<<i; - len++; - } - - if (newmask != writemask) { - need_stall = 1; -/* debug_printf("need stall %x %x\n", newmask , writemask); */ - } - else { - struct brw_reg m1 = brw_message_reg(msg_reg_nr); - - newmask = ~newmask & TGSI_WRITEMASK_XYZW; - - brw_push_insn_state(p); - - brw_set_compression_control(p, BRW_COMPRESSION_NONE); - brw_set_mask_control(p, BRW_MASK_DISABLE); - - brw_MOV(p, m1, brw_vec8_grf(0,0)); - brw_MOV(p, get_element_ud(m1, 2), brw_imm_ud(newmask << 12)); - - brw_pop_insn_state(p); - - src0 = retype(brw_null_reg(), BRW_REGISTER_TYPE_UW); - dest = offset(dest, dst_offset); - response_length = len * 2; - } - } - - { - struct brw_instruction *insn = next_insn(p, BRW_OPCODE_SEND); - - insn->header.predicate_control = 0; /* XXX */ - insn->header.compression_control = BRW_COMPRESSION_NONE; - insn->header.destreg__conditonalmod = msg_reg_nr; - - brw_set_dest(insn, dest); - brw_set_src0(insn, src0); - brw_set_sampler_message(insn, - binding_table_index, - sampler, - msg_type, - response_length, - msg_length, - eot); - } - - if (need_stall) - { - struct brw_reg reg = vec8(offset(dest, response_length-1)); - - /* mov (8) r9.0<1>:f r9.0<8;8,1>:f { Align1 } - */ - brw_push_insn_state(p); - brw_set_compression_control(p, FALSE); - brw_MOV(p, reg, reg); - brw_pop_insn_state(p); - } - -} - -/* All these variables are pretty confusing - we might be better off - * using bitmasks and macros for this, in the old style. Or perhaps - * just having the caller instantiate the fields in dword3 itself. - */ -void brw_urb_WRITE(struct brw_compile *p, - struct brw_reg dest, - unsigned msg_reg_nr, - struct brw_reg src0, - boolean allocate, - boolean used, - unsigned msg_length, - unsigned response_length, - boolean eot, - boolean writes_complete, - unsigned offset, - unsigned swizzle) -{ - struct brw_instruction *insn = next_insn(p, BRW_OPCODE_SEND); - - assert(msg_length < 16); - - brw_set_dest(insn, dest); - brw_set_src0(insn, src0); - brw_set_src1(insn, brw_imm_d(0)); - - insn->header.destreg__conditonalmod = msg_reg_nr; - - brw_set_urb_message(insn, - allocate, - used, - msg_length, - response_length, - eot, - writes_complete, - offset, - swizzle); -} - |