From d3c10ad42729c1fe74a7f7c67465bd2beb7f9e75 Mon Sep 17 00:00:00 2001 From: Francisco Jerez Date: Wed, 3 Jun 2015 20:43:09 +0300 Subject: [PATCH] i965/fs: Migrate shader time to the IR builder. v2: Change null register destination type to UD so it can be compacted. Reviewed-by: Matt Turner --- src/mesa/drivers/dri/i965/brw_fs.cpp | 54 +++++++++++----------------- src/mesa/drivers/dri/i965/brw_fs.h | 5 +-- 2 files changed, 23 insertions(+), 36 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index c4d3f575de3..bbf3bc27f1a 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -675,7 +675,7 @@ fs_visitor::type_size(const struct glsl_type *type) * the destination of the MOV, with extra parameters set. */ fs_reg -fs_visitor::get_timestamp(fs_inst **out_mov) +fs_visitor::get_timestamp(const fs_builder &bld) { assert(devinfo->gen >= 7); @@ -686,11 +686,10 @@ fs_visitor::get_timestamp(fs_inst **out_mov) fs_reg dst = fs_reg(GRF, alloc.allocate(1), BRW_REGISTER_TYPE_UD, 4); - fs_inst *mov = MOV(dst, ts); /* We want to read the 3 fields we care about even if it's not enabled in * the dispatch. */ - mov->force_writemask_all = true; + bld.exec_all().MOV(dst, ts); /* The caller wants the low 32 bits of the timestamp. Since it's running * at the GPU clock rate of ~1.2ghz, it will roll over every ~3 seconds, @@ -704,24 +703,18 @@ fs_visitor::get_timestamp(fs_inst **out_mov) */ dst.set_smear(0); - *out_mov = mov; return dst; } void fs_visitor::emit_shader_time_begin() { - current_annotation = "shader time start"; - fs_inst *mov; - shader_start_time = get_timestamp(&mov); - emit(mov); + shader_start_time = get_timestamp(bld.annotate("shader time start")); } void fs_visitor::emit_shader_time_end() { - current_annotation = "shader time end"; - enum shader_time_shader_type type, written_type, reset_type; switch (stage) { case MESA_SHADER_VERTEX: @@ -758,47 +751,41 @@ fs_visitor::emit_shader_time_end() /* Insert our code just before the final SEND with EOT. */ exec_node *end = this->instructions.get_tail(); assert(end && ((fs_inst *) end)->eot); + const fs_builder ibld = bld.annotate("shader time end") + .exec_all().at(NULL, end); - fs_inst *tm_read; - fs_reg shader_end_time = get_timestamp(&tm_read); - end->insert_before(tm_read); + fs_reg shader_end_time = get_timestamp(ibld); /* Check that there weren't any timestamp reset events (assuming these * were the only two timestamp reads that happened). */ fs_reg reset = shader_end_time; reset.set_smear(2); - fs_inst *test = AND(reg_null_d, reset, fs_reg(1u)); - test->conditional_mod = BRW_CONDITIONAL_Z; - test->force_writemask_all = true; - end->insert_before(test); - end->insert_before(IF(BRW_PREDICATE_NORMAL)); + set_condmod(BRW_CONDITIONAL_Z, + ibld.AND(ibld.null_reg_ud(), reset, fs_reg(1u))); + ibld.IF(BRW_PREDICATE_NORMAL); fs_reg start = shader_start_time; start.negate = true; fs_reg diff = fs_reg(GRF, alloc.allocate(1), BRW_REGISTER_TYPE_UD, 1); diff.set_smear(0); - fs_inst *add = ADD(diff, start, shader_end_time); - add->force_writemask_all = true; - end->insert_before(add); + ibld.ADD(diff, start, shader_end_time); /* If there were no instructions between the two timestamp gets, the diff * is 2 cycles. Remove that overhead, so I can forget about that when * trying to determine the time taken for single instructions. */ - add = ADD(diff, diff, fs_reg(-2u)); - add->force_writemask_all = true; - end->insert_before(add); - - end->insert_before(SHADER_TIME_ADD(type, diff)); - end->insert_before(SHADER_TIME_ADD(written_type, fs_reg(1u))); - end->insert_before(new(mem_ctx) fs_inst(BRW_OPCODE_ELSE, dispatch_width)); - end->insert_before(SHADER_TIME_ADD(reset_type, fs_reg(1u))); - end->insert_before(new(mem_ctx) fs_inst(BRW_OPCODE_ENDIF, dispatch_width)); + ibld.ADD(diff, diff, fs_reg(-2u)); + SHADER_TIME_ADD(ibld, type, diff); + SHADER_TIME_ADD(ibld, written_type, fs_reg(1u)); + ibld.emit(BRW_OPCODE_ELSE); + SHADER_TIME_ADD(ibld, reset_type, fs_reg(1u)); + ibld.emit(BRW_OPCODE_ENDIF); } -fs_inst * -fs_visitor::SHADER_TIME_ADD(enum shader_time_shader_type type, fs_reg value) +void +fs_visitor::SHADER_TIME_ADD(const fs_builder &bld, + enum shader_time_shader_type type, fs_reg value) { int shader_time_index = brw_get_shader_time_index(brw, shader_prog, prog, type); @@ -810,8 +797,7 @@ fs_visitor::SHADER_TIME_ADD(enum shader_time_shader_type type, fs_reg value) else payload = vgrf(glsl_type::uint_type); - return new(mem_ctx) fs_inst(SHADER_OPCODE_SHADER_TIME_ADD, - fs_reg(), payload, offset, value); + bld.emit(SHADER_OPCODE_SHADER_TIME_ADD, fs_reg(), payload, offset, value); } void diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h index cf568368541..de372982517 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.h +++ b/src/mesa/drivers/dri/i965/brw_fs.h @@ -339,7 +339,8 @@ public: void emit_shader_time_begin(); void emit_shader_time_end(); - fs_inst *SHADER_TIME_ADD(enum shader_time_shader_type type, fs_reg value); + void SHADER_TIME_ADD(const brw::fs_builder &bld, + enum shader_time_shader_type type, fs_reg value); void emit_untyped_atomic(unsigned atomic_op, unsigned surf_index, fs_reg dst, fs_reg offset, fs_reg src0, @@ -350,7 +351,7 @@ public: void resolve_ud_negate(fs_reg *reg); - fs_reg get_timestamp(fs_inst **out_mov); + fs_reg get_timestamp(const brw::fs_builder &bld); struct brw_reg interp_reg(int location, int channel); int implied_mrf_writes(fs_inst *inst); -- 2.30.2