diff options
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp b/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp index 96562cf2eed..dfcaa80b58b 100644 --- a/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp +++ b/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp @@ -1407,11 +1407,15 @@ fs_instruction_scheduler::choose_instruction_to_schedule() if (mode == SCHEDULE_PRE || mode == SCHEDULE_POST) { int chosen_time = 0; - /* Of the instructions ready to execute or the closest to - * being ready, choose the oldest one. + /* Of the instructions ready to execute or the closest to being ready, + * choose the one most likely to unblock an early program exit, or + * otherwise the oldest one. */ foreach_in_list(schedule_node, n, &instructions) { - if (!chosen || n->unblocked_time < chosen_time) { + if (!chosen || + exit_unblocked_time(n) < exit_unblocked_time(chosen) || + (exit_unblocked_time(n) == exit_unblocked_time(chosen) && + n->unblocked_time < chosen_time)) { chosen = n; chosen_time = n->unblocked_time; } @@ -1500,6 +1504,15 @@ fs_instruction_scheduler::choose_instruction_to_schedule() continue; } + /* Prefer the node most likely to unblock an early program exit. + */ + if (exit_unblocked_time(n) < exit_unblocked_time(chosen)) { + chosen = n; + continue; + } else if (exit_unblocked_time(n) > exit_unblocked_time(chosen)) { + continue; + } + /* If all other metrics are equal, we prefer the first instruction in * the list (program execution). */ |