diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_schedule_instructions.cpp | 50 |
1 files changed, 42 insertions, 8 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_schedule_instructions.cpp b/src/mesa/drivers/dri/i965/brw_fs_schedule_instructions.cpp index 400452d71f8..fb1192c810a 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_schedule_instructions.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_schedule_instructions.cpp @@ -145,6 +145,8 @@ public: void calculate_deps(); void schedule_instructions(fs_inst *next_block_header); + bool is_compressed(fs_inst *inst); + void *mem_ctx; int instructions_to_schedule; @@ -234,6 +236,17 @@ instruction_scheduler::add_barrier_deps(schedule_node *n) } } +/* instruction scheduling needs to be aware of when an MRF write + * actually writes 2 MRFs. + */ +bool +instruction_scheduler::is_compressed(fs_inst *inst) +{ + return (v->c->dispatch_width == 16 && + !inst->force_uncompressed && + !inst->force_sechalf); +} + void instruction_scheduler::calculate_deps() { @@ -297,11 +310,24 @@ instruction_scheduler::calculate_deps() } last_grf_write[inst->dst.reg] = n; } else if (inst->dst.file == MRF) { - if (last_mrf_write[inst->dst.hw_reg]) { - add_dep(last_mrf_write[inst->dst.hw_reg], n, - last_mrf_write[inst->dst.hw_reg]->latency); + int reg = inst->dst.hw_reg & ~BRW_MRF_COMPR4; + + if (last_mrf_write[reg]) { + add_dep(last_mrf_write[reg], n, + last_mrf_write[reg]->latency); + } + last_mrf_write[reg] = n; + if (is_compressed(inst)) { + if (inst->dst.hw_reg & BRW_MRF_COMPR4) + reg += 4; + else + reg++; + if (last_mrf_write[reg]) { + add_dep(last_mrf_write[reg], n, + last_mrf_write[reg]->latency); + } + last_mrf_write[reg] = n; } - last_mrf_write[inst->dst.hw_reg] = n; } else if (inst->dst.file != BAD_FILE) { add_barrier_deps(n); } @@ -369,7 +395,18 @@ instruction_scheduler::calculate_deps() if (inst->dst.file == GRF) { last_grf_write[inst->dst.reg] = n; } else if (inst->dst.file == MRF) { - last_mrf_write[inst->dst.hw_reg] = n; + int reg = inst->dst.hw_reg & ~BRW_MRF_COMPR4; + + last_mrf_write[reg] = n; + + if (is_compressed(inst)) { + if (inst->dst.hw_reg & BRW_MRF_COMPR4) + reg += 4; + else + reg++; + + last_mrf_write[reg] = n; + } } else if (inst->dst.file != BAD_FILE) { add_barrier_deps(n); } @@ -463,9 +500,6 @@ fs_visitor::schedule_instructions() fs_inst *next_block_header = (fs_inst *)instructions.head; instruction_scheduler sched(this, mem_ctx, this->virtual_grf_next); - if (c->dispatch_width == 16) - return; - while (!next_block_header->is_tail_sentinel()) { /* Add things to be scheduled until we get to a new BB. */ while (!next_block_header->is_tail_sentinel()) { |