/* * Copyright 2012-15 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 *
*/
/** * DOC: overview * * There is only one common DCHUBBUB. It contains the common request and return * blocks for the Data Fabric Interface that are not clock/power gated.
*/
/** * @program_det_size: * * DE-Tile buffers (DET) is a memory that is used to convert the tiled * data into linear, which the rest of the display can use to generate * the graphics output. One of the main features of this component is * that each pipe has a configurable DET buffer which means that when a * pipe is not enabled, the device can assign the memory to other * enabled pipes to try to be more efficient. * * DET logic is handled by dchubbub. Some ASICs provide a feature named * Configurable Return Buffer (CRB) segments which can be allocated to * compressed or detiled buffers.
*/ void (*program_det_size)(struct hubbub *hubbub, int hubp_inst, unsigned det_buffer_size_in_kbyte); void (*wait_for_det_apply)(struct hubbub *hubbub, int hubp_inst); void (*program_compbuf_size)(struct hubbub *hubbub, unsigned compbuf_size_kb, bool safe_to_increase); void (*init_crb)(struct hubbub *hubbub); void (*force_usr_retraining_allow)(struct hubbub *hubbub, bool allow); void (*set_request_limit)(struct hubbub *hubbub, int memory_channel_count, int words_per_channel); void (*dchubbub_init)(struct hubbub *hubbub); void (*get_mall_en)(struct hubbub *hubbub, unsignedint *mall_in_use); void (*program_det_segments)(struct hubbub *hubbub, int hubp_inst, unsigned det_buffer_size_seg); void (*program_compbuf_segments)(struct hubbub *hubbub, unsigned compbuf_size_seg, bool safe_to_increase); void (*wait_for_det_update)(struct hubbub *hubbub, int hubp_inst); bool (*program_arbiter)(struct hubbub *hubbub, struct dml2_display_arb_regs *arb_regs, bool safe_to_lower);
};
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