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Now that we rapidly park the GT when the GPU idles, we often find ourselves idling faster than the RC6 promotion timer. Thus if we tell the GPU to enter RC6 manually as we park, we can do so quicker (by around 50ms, half an EI on average) and marginally increase our powersaving across all execlists platforms. v2: Now with a selftest to check we can enter RC6 manually Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Andi Shyti <andi.shyti@intel.com> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Imre Deak <imre.deak@intel.com> Acked-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Andi Shyti <andi.shyti@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191127095657.3209854-1-chris@chris-wilson.co.uk
14 lines
222 B
C
14 lines
222 B
C
/*
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* SPDX-License-Identifier: MIT
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*
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* Copyright © 2019 Intel Corporation
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*/
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#ifndef SELFTEST_RC6_H
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#define SELFTEST_RC6_H
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int live_rc6_ctx_wa(void *arg);
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int live_rc6_manual(void *arg);
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#endif /* SELFTEST_RC6_H */
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