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The media spin utility is derived from media fill. The purpose is to create a simple means to keep the render engine (media pipeline) busy for a controlled amount of time. It does so by emitting a batch with a single execution thread that spins in a tight loop the requested number of times. Each spin increments a counter whose final 32-bit value is written to the destination buffer on completion for checking. The implementation supports Gen8, Gen8lp, and Gen9. v2: Apply the recommendations of igt.cocci. Signed-off-by: Jeff McGee <jeff.mcgee@intel.com> Tested-by: Lei Liu <lei.a.liu@intel.com> Signed-off-by: Thomas Wood <thomas.wood@intel.com>
40 lines
1.5 KiB
C
40 lines
1.5 KiB
C
/*
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* Copyright © 2015 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Jeff McGee <jeff.mcgee@intel.com>
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*/
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#ifndef MEDIA_SPIN_H
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#define MEDIA_SPIN_H
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void gen8_media_spinfunc(struct intel_batchbuffer *batch,
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struct igt_buf *dst, uint32_t spins);
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void gen8lp_media_spinfunc(struct intel_batchbuffer *batch,
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struct igt_buf *dst, uint32_t spins);
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void gen9_media_spinfunc(struct intel_batchbuffer *batch,
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struct igt_buf *dst, uint32_t spins);
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#endif /* MEDIA_SPIN_H */
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