1/*
2* Copyright 2018 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25#include "dm_services.h"
26#include "dcn20/dcn20_hubbub.h"
27#include "dcn201_hubbub.h"
28#include "reg_helper.h"
29
30#define REG(reg)\
31 hubbub1->regs->reg
32
33#define DC_LOGGER \
34 hubbub1->base.ctx->logger
35
36#define CTX \
37 hubbub1->base.ctx
38
39#undef FN
40#define FN(reg_name, field_name) \
41 hubbub1->shifts->field_name, hubbub1->masks->field_name
42
43#define REG(reg)\
44 hubbub1->regs->reg
45
46#define CTX \
47 hubbub1->base.ctx
48
49#undef FN
50#define FN(reg_name, field_name) \
51 hubbub1->shifts->field_name, hubbub1->masks->field_name
52
53static bool hubbub201_program_watermarks(
54 struct hubbub *hubbub,
55 struct dcn_watermark_set *watermarks,
56 unsigned int refclk_mhz,
57 bool safe_to_lower)
58{
59 struct dcn20_hubbub *hubbub1 = TO_DCN20_HUBBUB(hubbub);
60 bool wm_pending = false;
61
62 if (hubbub1_program_urgent_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower))
63 wm_pending = true;
64
65 if (hubbub1_program_pstate_watermarks(hubbub, watermarks, refclk_mhz, safe_to_lower))
66 wm_pending = true;
67
68 REG_SET(DCHUBBUB_ARB_SAT_LEVEL, 0,
69 DCHUBBUB_ARB_SAT_LEVEL, 60 * refclk_mhz);
70 REG_UPDATE(DCHUBBUB_ARB_DF_REQ_OUTSTAND,
71 DCHUBBUB_ARB_MIN_REQ_OUTSTAND, 68);
72
73 hubbub1_allow_self_refresh_control(hubbub, allow: !hubbub->ctx->dc->debug.disable_stutter);
74
75 return wm_pending;
76}
77
78static const struct hubbub_funcs hubbub201_funcs = {
79 .update_dchub = hubbub2_update_dchub,
80 .init_dchub_sys_ctx = NULL,
81 .init_vm_ctx = NULL,
82 .dcc_support_swizzle = hubbub2_dcc_support_swizzle,
83 .dcc_support_pixel_format = hubbub2_dcc_support_pixel_format,
84 .get_dcc_compression_cap = hubbub2_get_dcc_compression_cap,
85 .wm_read_state = hubbub2_wm_read_state,
86 .get_dchub_ref_freq = hubbub2_get_dchub_ref_freq,
87 .program_watermarks = hubbub201_program_watermarks,
88 .hubbub_read_state = hubbub2_read_state,
89};
90
91void hubbub201_construct(struct dcn20_hubbub *hubbub,
92 struct dc_context *ctx,
93 const struct dcn_hubbub_registers *hubbub_regs,
94 const struct dcn_hubbub_shift *hubbub_shift,
95 const struct dcn_hubbub_mask *hubbub_mask)
96{
97 hubbub->base.ctx = ctx;
98
99 hubbub->base.funcs = &hubbub201_funcs;
100
101 hubbub->regs = hubbub_regs;
102 hubbub->shifts = hubbub_shift;
103 hubbub->masks = hubbub_mask;
104
105 hubbub->debug_test_index_pstate = 0xB;
106 hubbub->detile_buf_size = 164 * 1024;
107}
108

source code of linux/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_hubbub.c