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panfrost/midgard: Hit missed scheduling opportunity 

Don't try to schedule to vmul when that can't possible work (forcing a
bundle break). glmark:

total bundles in shared programs: 2700 -> 2683 (-0.63%)
bundles in affected programs: 695 -> 678 (-2.45%)
helped: 14
HURT: 0
helped stats (abs) min: 1 max: 4 x̄: 1.21 x̃: 1
helped stats (rel) min: 1.27% max: 7.69% x̄: 4.30% x̃: 4.77%
95% mean confidence interval for bundles value: -1.68 -0.75
95% mean confidence interval for bundles %-change: -5.63% -2.97%
Bundles are helped.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-07-09 10:59:34 -07:00
parent 2d739f6b59
commit b69d5d6e19
1 changed files with 1 additions and 1 deletions
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2
src/gallium/drivers/panfrost/midgard/midgard_schedule.c
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@ -234,7 +234,7 @@ schedule_bundle(compiler_context *ctx, midgard_block *block, midgard_instruction
else
break;
} else {
if ((units & UNIT_VMUL) && !(control & UNIT_VMUL))
if ((units & UNIT_VMUL) && last_unit < UNIT_VMUL)
unit = UNIT_VMUL;
else if ((units & UNIT_VADD) && !(control & UNIT_VADD))
unit = UNIT_VADD;