sched: simplify xex() and expand cluster_sched test coverage#51
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sched: simplify xex() and expand cluster_sched test coverage#51zbelinsk wants to merge 3 commits into
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Replace xex()'s branch-heavy switch with a branchless arithmetic equivalent: HVX(xe) and HLX(xe3) share one coproc slot, so their contribution to coproc_count is (new_xe|new_xe3) - (cur_xe|cur_xe3); HMX(xe2) is its own slot using plain subtraction. Verified equivalent by truth table. Comparing compiled result- 5 insns / 0 branches vs 15 / 3. Expand the readylist CLUSTER_SCHED test to cover all code paths in H2K_ready_head. Add slot-accounting correctness checks verifying xe, xe|xe3, and xe|xe3|xe2 each charge the expected count delta. Signed-off-by: Zeev Belinsky <zbelinsk@qti.qualcomm.com>
Signed-off-by: zbelinsk <zbelinsk@qti.qualcomm.com>
Signed-off-by: Zeev Belinsky <zbelinsk@qti.qualcomm.com>
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Replace xex()'s branch-heavy switch with a branchless arithmetic equivalent: HVX(xe) and HLX(xe3) share one coproc slot, so their contribution to coproc_count is (new_xe|new_xe3) - (cur_xe|cur_xe3); HMX(xe2) is its own slot using plain subtraction. Verified equivalent by truth table and by comparing compiled result- 5 insns / 0 branches vs 15 / 3.
Expand the readylist CLUSTER_SCHED test to cover all five code paths in H2K_ready_head: early-out, fits
locally, full+no-waiters oversubscribe, full+handoff, and ring-walk-exhausted/ring-walk-finds-fitter. Add slot- accounting correctness checks verifying xe, xe|xe3, and xe|xe3|xe2 each charge the expected count delta.