1/*
2 * Copyright 2020 Mauro Rossi <issor.oruam@gmail.com>
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 "dm_services.h"
27
28/* include DCE6 register header files */
29#include "dce/dce_6_0_d.h"
30#include "dce/dce_6_0_sh_mask.h"
31
32#include "dc_types.h"
33
34#include "include/grph_object_id.h"
35#include "include/logger_interface.h"
36#include "../dce110/dce110_timing_generator.h"
37#include "dce60_timing_generator.h"
38
39#include "timing_generator.h"
40
41enum black_color_format {
42 BLACK_COLOR_FORMAT_RGB_FULLRANGE = 0, /* used as index in array */
43 BLACK_COLOR_FORMAT_RGB_LIMITED,
44 BLACK_COLOR_FORMAT_YUV_TV,
45 BLACK_COLOR_FORMAT_YUV_CV,
46 BLACK_COLOR_FORMAT_YUV_SUPER_AA,
47
48 BLACK_COLOR_FORMAT_COUNT
49};
50
51static const struct dce110_timing_generator_offsets reg_offsets[] = {
52{
53 .crtc = (mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL - mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL),
54 .dcp = (mmDCP0_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
55},
56{
57 .crtc = (mmCRTC1_DCFE_MEM_LIGHT_SLEEP_CNTL - mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL),
58 .dcp = (mmDCP1_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
59},
60{
61 .crtc = (mmCRTC2_DCFE_MEM_LIGHT_SLEEP_CNTL - mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL),
62 .dcp = (mmDCP2_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
63},
64{
65 .crtc = (mmCRTC3_DCFE_MEM_LIGHT_SLEEP_CNTL - mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL),
66 .dcp = (mmDCP3_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
67},
68{
69 .crtc = (mmCRTC4_DCFE_MEM_LIGHT_SLEEP_CNTL - mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL),
70 .dcp = (mmDCP4_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
71},
72{
73 .crtc = (mmCRTC5_DCFE_MEM_LIGHT_SLEEP_CNTL - mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL),
74 .dcp = (mmDCP5_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
75}
76};
77
78#define NUMBER_OF_FRAME_TO_WAIT_ON_TRIGGERED_RESET 10
79
80#define MAX_H_TOTAL (CRTC_H_TOTAL__CRTC_H_TOTAL_MASK + 1)
81#define MAX_V_TOTAL (CRTC_V_TOTAL__CRTC_V_TOTAL_MASKhw + 1)
82
83#define CRTC_REG(reg) (reg + tg110->offsets.crtc)
84#define DCP_REG(reg) (reg + tg110->offsets.dcp)
85#define DMIF_REG(reg) (reg + tg110->offsets.dmif)
86
87static void program_pix_dur(struct timing_generator *tg, uint32_t pix_clk_100hz)
88{
89 uint64_t pix_dur;
90 uint32_t addr = mmDMIF_PG0_DPG_PIPE_ARBITRATION_CONTROL1
91 + DCE110TG_FROM_TG(tg)->offsets.dmif;
92 uint32_t value = dm_read_reg(tg->ctx, addr);
93
94 if (pix_clk_100hz == 0)
95 return;
96
97 pix_dur = div_u64(dividend: 10000000000ull, divisor: pix_clk_100hz);
98
99 set_reg_field_value(
100 value,
101 pix_dur,
102 DPG_PIPE_ARBITRATION_CONTROL1,
103 PIXEL_DURATION);
104
105 dm_write_reg(tg->ctx, addr, value);
106}
107
108static void program_timing(struct timing_generator *tg,
109 const struct dc_crtc_timing *timing,
110 int vready_offset,
111 int vstartup_start,
112 int vupdate_offset,
113 int vupdate_width,
114 const enum signal_type signal,
115 bool use_vbios)
116{
117 if (!use_vbios)
118 program_pix_dur(tg, pix_clk_100hz: timing->pix_clk_100hz);
119
120 dce110_tg_program_timing(tg, timing, vready_offset: 0, vstartup_start: 0, vupdate_offset: 0, vupdate_width: 0, signal: 0, use_vbios);
121}
122
123static void dce60_timing_generator_enable_advanced_request(
124 struct timing_generator *tg,
125 bool enable,
126 const struct dc_crtc_timing *timing)
127{
128 struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg);
129 uint32_t addr = CRTC_REG(mmCRTC_START_LINE_CONTROL);
130 uint32_t value = dm_read_reg(tg->ctx, addr);
131 /* DCE6 has CRTC_PREFETCH_EN bit in CRTC_CONTROL register */
132 uint32_t addr2 = CRTC_REG(mmCRTC_CONTROL);
133 uint32_t value2 = dm_read_reg(tg->ctx, addr2);
134
135 /* DCE6 does not support CRTC_LEGACY_REQUESTOR_EN bit
136 so here is not possible to set bit based on enable argument */
137
138 if ((timing->v_sync_width + timing->v_front_porch) <= 3) {
139 set_reg_field_value(
140 value,
141 3,
142 CRTC_START_LINE_CONTROL,
143 CRTC_ADVANCED_START_LINE_POSITION);
144 set_reg_field_value(
145 value2,
146 0,
147 CRTC_CONTROL,
148 CRTC_PREFETCH_EN);
149 } else {
150 set_reg_field_value(
151 value,
152 4,
153 CRTC_START_LINE_CONTROL,
154 CRTC_ADVANCED_START_LINE_POSITION);
155 set_reg_field_value(
156 value2,
157 1,
158 CRTC_CONTROL,
159 CRTC_PREFETCH_EN);
160 }
161
162 set_reg_field_value(
163 value,
164 1,
165 CRTC_START_LINE_CONTROL,
166 CRTC_PROGRESSIVE_START_LINE_EARLY);
167
168 set_reg_field_value(
169 value,
170 1,
171 CRTC_START_LINE_CONTROL,
172 CRTC_INTERLACE_START_LINE_EARLY);
173
174 dm_write_reg(tg->ctx, addr, value);
175 dm_write_reg(tg->ctx, addr2, value2);
176}
177
178static bool dce60_is_tg_enabled(struct timing_generator *tg)
179{
180 uint32_t addr = 0;
181 uint32_t value = 0;
182 uint32_t field = 0;
183 struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg);
184
185 addr = CRTC_REG(mmCRTC_CONTROL);
186 value = dm_read_reg(tg->ctx, addr);
187 field = get_reg_field_value(value, CRTC_CONTROL,
188 CRTC_CURRENT_MASTER_EN_STATE);
189 return field == 1;
190}
191
192static bool dce60_configure_crc(struct timing_generator *tg,
193 const struct crc_params *params)
194{
195 /* Cannot configure crc on a CRTC that is disabled */
196 if (!dce60_is_tg_enabled(tg))
197 return false;
198
199 /* DCE6 has no CRTC_CRC_CNTL register, nothing to do */
200
201 return true;
202}
203
204static const struct timing_generator_funcs dce60_tg_funcs = {
205 .validate_timing = dce110_tg_validate_timing,
206 .program_timing = program_timing,
207 .enable_crtc = dce110_timing_generator_enable_crtc,
208 .disable_crtc = dce110_timing_generator_disable_crtc,
209 .is_counter_moving = dce110_timing_generator_is_counter_moving,
210 .get_position = dce110_timing_generator_get_position,
211 .get_frame_count = dce110_timing_generator_get_vblank_counter,
212 .get_scanoutpos = dce110_timing_generator_get_crtc_scanoutpos,
213 .set_early_control = dce110_timing_generator_set_early_control,
214 .wait_for_state = dce110_tg_wait_for_state,
215 .set_blank = dce110_tg_set_blank,
216 .is_blanked = dce110_tg_is_blanked,
217 .set_colors = dce110_tg_set_colors,
218 .set_overscan_blank_color =
219 dce110_timing_generator_set_overscan_color_black,
220 .set_blank_color = dce110_timing_generator_program_blank_color,
221 .disable_vga = dce110_timing_generator_disable_vga,
222 .did_triggered_reset_occur =
223 dce110_timing_generator_did_triggered_reset_occur,
224 .setup_global_swap_lock =
225 dce110_timing_generator_setup_global_swap_lock,
226 .enable_reset_trigger = dce110_timing_generator_enable_reset_trigger,
227 .disable_reset_trigger = dce110_timing_generator_disable_reset_trigger,
228 .tear_down_global_swap_lock =
229 dce110_timing_generator_tear_down_global_swap_lock,
230 .set_drr = dce110_timing_generator_set_drr,
231 .set_static_screen_control =
232 dce110_timing_generator_set_static_screen_control,
233 .set_test_pattern = dce110_timing_generator_set_test_pattern,
234 .arm_vert_intr = dce110_arm_vert_intr,
235
236 /* DCE6.0 overrides */
237 .enable_advanced_request =
238 dce60_timing_generator_enable_advanced_request,
239 .configure_crc = dce60_configure_crc,
240 .get_crc = dce110_get_crc,
241};
242
243void dce60_timing_generator_construct(
244 struct dce110_timing_generator *tg110,
245 struct dc_context *ctx,
246 uint32_t instance,
247 const struct dce110_timing_generator_offsets *offsets)
248{
249 tg110->controller_id = CONTROLLER_ID_D0 + instance;
250 tg110->base.inst = instance;
251 tg110->offsets = *offsets;
252 tg110->derived_offsets = reg_offsets[instance];
253
254 tg110->base.funcs = &dce60_tg_funcs;
255
256 tg110->base.ctx = ctx;
257 tg110->base.bp = ctx->dc_bios;
258
259 tg110->max_h_total = CRTC_H_TOTAL__CRTC_H_TOTAL_MASK + 1;
260 tg110->max_v_total = CRTC_V_TOTAL__CRTC_V_TOTAL_MASK + 1;
261
262 tg110->min_h_blank = 56;
263 tg110->min_h_front_porch = 4;
264 tg110->min_h_back_porch = 4;
265}
266
267

source code of linux/drivers/gpu/drm/amd/display/dc/dce60/dce60_timing_generator.c