1/* SPDX-License-Identifier: MIT */
2/*
3 * Copyright 2022 Advanced Micro Devices, Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Authors: AMD
24 *
25 */
26
27#ifndef __DML314_DISPLAY_RQ_DLG_CALC_H__
28#define __DML314_DISPLAY_RQ_DLG_CALC_H__
29
30#include "../display_rq_dlg_helpers.h"
31
32struct display_mode_lib;
33
34// Function: dml_rq_dlg_get_rq_reg
35// Main entry point for test to get the register values out of this DML class.
36// This function calls <get_rq_param> and <extract_rq_regs> fucntions to calculate
37// and then populate the rq_regs struct
38// Input:
39// pipe_param - pipe source configuration (e.g. vp, pitch, scaling, dest, etc.)
40// Output:
41// rq_regs - struct that holds all the RQ registers field value.
42// See also: <display_rq_regs_st>
43void dml314_rq_dlg_get_rq_reg(struct display_mode_lib *mode_lib,
44 display_rq_regs_st *rq_regs,
45 const display_pipe_params_st *pipe_param);
46
47// Function: dml_rq_dlg_get_dlg_reg
48// Calculate and return DLG and TTU register struct given the system setting
49// Output:
50// dlg_regs - output DLG register struct
51// ttu_regs - output DLG TTU register struct
52// Input:
53// e2e_pipe_param - "compacted" array of e2e pipe param struct
54// num_pipes - num of active "pipe" or "route"
55// pipe_idx - index that identifies the e2e_pipe_param that corresponding to this dlg
56// cstate - 0: when calculate min_ttu_vblank it is assumed cstate is not required. 1: Normal mode, cstate is considered.
57// Added for legacy or unrealistic timing tests.
58void dml314_rq_dlg_get_dlg_reg(struct display_mode_lib *mode_lib,
59 display_dlg_regs_st *dlg_regs,
60 display_ttu_regs_st *ttu_regs,
61 const display_e2e_pipe_params_st *e2e_pipe_param,
62 const unsigned int num_pipes,
63 const unsigned int pipe_idx,
64 const bool cstate_en,
65 const bool pstate_en,
66 const bool vm_en,
67 const bool ignore_viewport_pos,
68 const bool immediate_flip_support);
69
70#endif
71

source code of linux/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_rq_dlg_calc_314.h