/* * Copyright 2021 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. *
*/
/* we have issues with mclk switching with * refresh rates over 120 hz on the non-DC code.
*/ if (drm_mode_vrefresh(&amdgpu_crtc->hw_mode) > 120)
vblank_time_us = 0;
/* The legacy (non-DC) code has issues with mclk switching * with refresh rates over 120 Hz. Disable mclk switching.
*/ if (vrefresh > 120)
vblank_time_us = 0;
/* Find vertical refresh rate of first active display. */ if (!cfg->vrefresh)
cfg->vrefresh = vrefresh;
}
if (amdgpu_crtc->crtc_id < cfg->crtc_index) { /* Find first active CRTC and its line time. */
cfg->crtc_index = amdgpu_crtc->crtc_id;
cfg->line_time_in_us = amdgpu_crtc->line_time;
}
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.