/* * Copyright 2023 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: AMD *
*/ /* FILE POLICY AND INTENDED USAGE: * This file implements accessors to link resource.
*/
if (dc->caps.dp_hpo) { for (i = 0; i < dc->caps.max_links; i++) {
link = dc->links[i]; if (link->link_status.link_active &&
link_dp_get_encoding_format(&link->reported_link_cap) == DP_128b_132b_ENCODING &&
link_dp_get_encoding_format(&link->cur_link_settings) != DP_128b_132b_ENCODING) /* hpo dp link encoder is considered as recycled, when RX reports 128b/132b encoding capability * but current link doesn't use it.
*/
hpo_dp_recycle_map |= (1 << i);
}
*map |= (hpo_dp_recycle_map << LINK_RES_HPO_DP_REC_MAP__SHIFT);
}
}
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