1/*
2 * Copyright 2020 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
26#include "../dmub_srv.h"
27#include "dmub_reg.h"
28#include "dmub_dcn20.h"
29#include "dmub_dcn30.h"
30
31#include "sienna_cichlid_ip_offset.h"
32#include "dcn/dcn_3_0_0_offset.h"
33#include "dcn/dcn_3_0_0_sh_mask.h"
34
35#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg
36#define CTX dmub
37#define REGS dmub->regs
38
39/* Registers. */
40
41const struct dmub_srv_common_regs dmub_srv_dcn30_regs = {
42#define DMUB_SR(reg) REG_OFFSET(reg),
43 {
44 DMUB_COMMON_REGS()
45 DMCUB_INTERNAL_REGS()
46 },
47#undef DMUB_SR
48
49#define DMUB_SF(reg, field) FD_MASK(reg, field),
50 { DMUB_COMMON_FIELDS() },
51#undef DMUB_SF
52
53#define DMUB_SF(reg, field) FD_SHIFT(reg, field),
54 { DMUB_COMMON_FIELDS() },
55#undef DMUB_SF
56};
57
58/* Shared functions. */
59
60static void dmub_dcn30_get_fb_base_offset(struct dmub_srv *dmub,
61 uint64_t *fb_base,
62 uint64_t *fb_offset)
63{
64 uint32_t tmp;
65
66 if (dmub->fb_base || dmub->fb_offset) {
67 *fb_base = dmub->fb_base;
68 *fb_offset = dmub->fb_offset;
69 return;
70 }
71
72 REG_GET(DCN_VM_FB_LOCATION_BASE, FB_BASE, &tmp);
73 *fb_base = (uint64_t)tmp << 24;
74
75 REG_GET(DCN_VM_FB_OFFSET, FB_OFFSET, &tmp);
76 *fb_offset = (uint64_t)tmp << 24;
77}
78
79static inline void dmub_dcn30_translate_addr(const union dmub_addr *addr_in,
80 uint64_t fb_base,
81 uint64_t fb_offset,
82 union dmub_addr *addr_out)
83{
84 addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset;
85}
86
87void dmub_dcn30_backdoor_load(struct dmub_srv *dmub,
88 const struct dmub_window *cw0,
89 const struct dmub_window *cw1)
90{
91 union dmub_addr offset;
92 uint64_t fb_base, fb_offset;
93
94 dmub_dcn30_get_fb_base_offset(dmub, fb_base: &fb_base, fb_offset: &fb_offset);
95
96 REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1);
97
98 /* MEM_CTNL read/write space doesn't exist. */
99
100 dmub_dcn30_translate_addr(addr_in: &cw0->offset, fb_base, fb_offset, addr_out: &offset);
101
102 REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part);
103 REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part);
104 REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base);
105 REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0,
106 DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top,
107 DMCUB_REGION3_CW0_ENABLE, 1);
108
109 dmub_dcn30_translate_addr(addr_in: &cw1->offset, fb_base, fb_offset, addr_out: &offset);
110
111 REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part);
112 REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part);
113 REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base);
114 REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0,
115 DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top,
116 DMCUB_REGION3_CW1_ENABLE, 1);
117
118 REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID,
119 0x20);
120}
121
122void dmub_dcn30_setup_windows(struct dmub_srv *dmub,
123 const struct dmub_window *cw2,
124 const struct dmub_window *cw3,
125 const struct dmub_window *cw4,
126 const struct dmub_window *cw5,
127 const struct dmub_window *cw6,
128 const struct dmub_window *region6)
129{
130 union dmub_addr offset;
131
132 /* sienna_cichlid has hardwired virtual addressing for CW2-CW7 */
133
134 offset = cw2->offset;
135
136 if (cw2->region.base != cw2->region.top) {
137 REG_WRITE(DMCUB_REGION3_CW2_OFFSET, offset.u.low_part);
138 REG_WRITE(DMCUB_REGION3_CW2_OFFSET_HIGH, offset.u.high_part);
139 REG_WRITE(DMCUB_REGION3_CW2_BASE_ADDRESS, cw2->region.base);
140 REG_SET_2(DMCUB_REGION3_CW2_TOP_ADDRESS, 0,
141 DMCUB_REGION3_CW2_TOP_ADDRESS, cw2->region.top,
142 DMCUB_REGION3_CW2_ENABLE, 1);
143 } else {
144 REG_WRITE(DMCUB_REGION3_CW2_OFFSET, 0);
145 REG_WRITE(DMCUB_REGION3_CW2_OFFSET_HIGH, 0);
146 REG_WRITE(DMCUB_REGION3_CW2_BASE_ADDRESS, 0);
147 REG_WRITE(DMCUB_REGION3_CW2_TOP_ADDRESS, 0);
148 }
149
150 offset = cw3->offset;
151
152 REG_WRITE(DMCUB_REGION3_CW3_OFFSET, offset.u.low_part);
153 REG_WRITE(DMCUB_REGION3_CW3_OFFSET_HIGH, offset.u.high_part);
154 REG_WRITE(DMCUB_REGION3_CW3_BASE_ADDRESS, cw3->region.base);
155 REG_SET_2(DMCUB_REGION3_CW3_TOP_ADDRESS, 0,
156 DMCUB_REGION3_CW3_TOP_ADDRESS, cw3->region.top,
157 DMCUB_REGION3_CW3_ENABLE, 1);
158
159 offset = cw4->offset;
160
161 /* New firmware can support CW4. */
162 if (dmub_dcn20_use_cached_inbox(dmub)) {
163 REG_WRITE(DMCUB_REGION3_CW4_OFFSET, offset.u.low_part);
164 REG_WRITE(DMCUB_REGION3_CW4_OFFSET_HIGH, offset.u.high_part);
165 REG_WRITE(DMCUB_REGION3_CW4_BASE_ADDRESS, cw4->region.base);
166 REG_SET_2(DMCUB_REGION3_CW4_TOP_ADDRESS, 0,
167 DMCUB_REGION3_CW4_TOP_ADDRESS, cw4->region.top,
168 DMCUB_REGION3_CW4_ENABLE, 1);
169 } else {
170 REG_WRITE(DMCUB_REGION4_OFFSET, offset.u.low_part);
171 REG_WRITE(DMCUB_REGION4_OFFSET_HIGH, offset.u.high_part);
172 REG_SET_2(DMCUB_REGION4_TOP_ADDRESS, 0,
173 DMCUB_REGION4_TOP_ADDRESS,
174 cw4->region.top - cw4->region.base - 1,
175 DMCUB_REGION4_ENABLE, 1);
176 }
177
178 offset = cw5->offset;
179
180 REG_WRITE(DMCUB_REGION3_CW5_OFFSET, offset.u.low_part);
181 REG_WRITE(DMCUB_REGION3_CW5_OFFSET_HIGH, offset.u.high_part);
182 REG_WRITE(DMCUB_REGION3_CW5_BASE_ADDRESS, cw5->region.base);
183 REG_SET_2(DMCUB_REGION3_CW5_TOP_ADDRESS, 0,
184 DMCUB_REGION3_CW5_TOP_ADDRESS, cw5->region.top,
185 DMCUB_REGION3_CW5_ENABLE, 1);
186
187 REG_WRITE(DMCUB_REGION5_OFFSET, offset.u.low_part);
188 REG_WRITE(DMCUB_REGION5_OFFSET_HIGH, offset.u.high_part);
189 REG_SET_2(DMCUB_REGION5_TOP_ADDRESS, 0,
190 DMCUB_REGION5_TOP_ADDRESS,
191 cw5->region.top - cw5->region.base - 1,
192 DMCUB_REGION5_ENABLE, 1);
193
194 offset = cw6->offset;
195
196 REG_WRITE(DMCUB_REGION3_CW6_OFFSET, offset.u.low_part);
197 REG_WRITE(DMCUB_REGION3_CW6_OFFSET_HIGH, offset.u.high_part);
198 REG_WRITE(DMCUB_REGION3_CW6_BASE_ADDRESS, cw6->region.base);
199 REG_SET_2(DMCUB_REGION3_CW6_TOP_ADDRESS, 0,
200 DMCUB_REGION3_CW6_TOP_ADDRESS, cw6->region.top,
201 DMCUB_REGION3_CW6_ENABLE, 1);
202}
203

source code of linux/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.c