1 /*
2  * Copyright 2016 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 "dm_services.h"
27 #include "dm_helpers.h"
28 #include "core_types.h"
29 #include "resource.h"
30 #include "dce/dce_hwseq.h"
31 #include "dce110/dce110_hw_sequencer.h"
32 #include "dcn21_hwseq.h"
33 #include "vmid.h"
34 #include "reg_helper.h"
35 #include "hw/clk_mgr.h"
36 #include "dc_dmub_srv.h"
37 #include "abm.h"
38 #include "link.h"
39 
40 #define DC_LOGGER_INIT(logger)
41 
42 #define CTX \
43 	hws->ctx
44 #define REG(reg)\
45 	hws->regs->reg
46 
47 #undef FN
48 #define FN(reg_name, field_name) \
49 	hws->shifts->field_name, hws->masks->field_name
50 
51 /* Temporary read settings, future will get values from kmd directly */
52 static void mmhub_update_page_table_config(struct dcn_hubbub_phys_addr_config *config,
53 		struct dce_hwseq *hws)
54 {
55 	uint32_t page_table_base_hi;
56 	uint32_t page_table_base_lo;
57 
58 	REG_GET(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
59 			PAGE_DIRECTORY_ENTRY_HI32, &page_table_base_hi);
60 	REG_GET(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
61 			PAGE_DIRECTORY_ENTRY_LO32, &page_table_base_lo);
62 
63 	config->gart_config.page_table_base_addr = ((uint64_t)page_table_base_hi << 32) | page_table_base_lo;
64 
65 }
66 
67 int dcn21_init_sys_ctx(struct dce_hwseq *hws, struct dc *dc, struct dc_phy_addr_space_config *pa_config)
68 {
69 	struct dcn_hubbub_phys_addr_config config;
70 
71 	config.system_aperture.fb_top = pa_config->system_aperture.fb_top;
72 	config.system_aperture.fb_offset = pa_config->system_aperture.fb_offset;
73 	config.system_aperture.fb_base = pa_config->system_aperture.fb_base;
74 	config.system_aperture.agp_top = pa_config->system_aperture.agp_top;
75 	config.system_aperture.agp_bot = pa_config->system_aperture.agp_bot;
76 	config.system_aperture.agp_base = pa_config->system_aperture.agp_base;
77 	config.gart_config.page_table_start_addr = pa_config->gart_config.page_table_start_addr;
78 	config.gart_config.page_table_end_addr = pa_config->gart_config.page_table_end_addr;
79 	config.gart_config.page_table_base_addr = pa_config->gart_config.page_table_base_addr;
80 
81 	mmhub_update_page_table_config(&config, hws);
82 
83 	return dc->res_pool->hubbub->funcs->init_dchub_sys_ctx(dc->res_pool->hubbub, &config);
84 }
85 
86 // work around for Renoir s0i3, if register is programmed, bypass golden init.
87 
88 bool dcn21_s0i3_golden_init_wa(struct dc *dc)
89 {
90 	struct dce_hwseq *hws = dc->hwseq;
91 	uint32_t value = 0;
92 
93 	value = REG_READ(MICROSECOND_TIME_BASE_DIV);
94 
95 	return value != 0x00120464;
96 }
97 
98 void dcn21_exit_optimized_pwr_state(
99 		const struct dc *dc,
100 		struct dc_state *context)
101 {
102 	dc->clk_mgr->funcs->update_clocks(
103 			dc->clk_mgr,
104 			context,
105 			false);
106 }
107 
108 void dcn21_optimize_pwr_state(
109 		const struct dc *dc,
110 		struct dc_state *context)
111 {
112 	dc->clk_mgr->funcs->update_clocks(
113 			dc->clk_mgr,
114 			context,
115 			true);
116 }
117 
118 /* If user hotplug a HDMI monitor while in monitor off,
119  * OS will do a mode set (with output timing) but keep output off.
120  * In this case DAL will ask vbios to power up the pll in the PHY.
121  * If user unplug the monitor (while we are on monitor off) or
122  * system attempt to enter modern standby (which we will disable PLL),
123  * PHY will hang on the next mode set attempt.
124  * if enable PLL follow by disable PLL (without executing lane enable/disable),
125  * RDPCS_PHY_DP_MPLLB_STATE remains 1,
126  * which indicate that PLL disable attempt actually didn't go through.
127  * As a workaround, insert PHY lane enable/disable before PLL disable.
128  */
129 void dcn21_PLAT_58856_wa(struct dc_state *context, struct pipe_ctx *pipe_ctx)
130 {
131 	if (!pipe_ctx->stream->dpms_off)
132 		return;
133 
134 	pipe_ctx->stream->dpms_off = false;
135 	pipe_ctx->stream->ctx->dc->link_srv->set_dpms_on(context, pipe_ctx);
136 	pipe_ctx->stream->ctx->dc->link_srv->set_dpms_off(pipe_ctx);
137 	pipe_ctx->stream->dpms_off = true;
138 }
139 
140 static bool dmub_abm_set_pipe(struct abm *abm, uint32_t otg_inst,
141 		uint32_t option, uint32_t panel_inst, uint32_t pwrseq_inst)
142 {
143 	union dmub_rb_cmd cmd;
144 	struct dc_context *dc = abm->ctx;
145 	uint32_t ramping_boundary = 0xFFFF;
146 
147 	memset(&cmd, 0, sizeof(cmd));
148 	cmd.abm_set_pipe.header.type = DMUB_CMD__ABM;
149 	cmd.abm_set_pipe.header.sub_type = DMUB_CMD__ABM_SET_PIPE;
150 	cmd.abm_set_pipe.abm_set_pipe_data.otg_inst = otg_inst;
151 	cmd.abm_set_pipe.abm_set_pipe_data.pwrseq_inst = pwrseq_inst;
152 	cmd.abm_set_pipe.abm_set_pipe_data.set_pipe_option = option;
153 	cmd.abm_set_pipe.abm_set_pipe_data.panel_inst = panel_inst;
154 	cmd.abm_set_pipe.abm_set_pipe_data.ramping_boundary = ramping_boundary;
155 	cmd.abm_set_pipe.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_pipe_data);
156 
157 	dm_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
158 
159 	return true;
160 }
161 
162 static void dmub_abm_set_backlight(struct dc_context *dc, uint32_t backlight_pwm_u16_16,
163 									uint32_t frame_ramp, uint32_t panel_inst)
164 {
165 	union dmub_rb_cmd cmd;
166 
167 	memset(&cmd, 0, sizeof(cmd));
168 	cmd.abm_set_backlight.header.type = DMUB_CMD__ABM;
169 	cmd.abm_set_backlight.header.sub_type = DMUB_CMD__ABM_SET_BACKLIGHT;
170 	cmd.abm_set_backlight.abm_set_backlight_data.frame_ramp = frame_ramp;
171 	cmd.abm_set_backlight.abm_set_backlight_data.backlight_user_level = backlight_pwm_u16_16;
172 	cmd.abm_set_backlight.abm_set_backlight_data.version = DMUB_CMD_ABM_CONTROL_VERSION_1;
173 	cmd.abm_set_backlight.abm_set_backlight_data.panel_mask = (0x01 << panel_inst);
174 	cmd.abm_set_backlight.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_backlight_data);
175 
176 	dm_execute_dmub_cmd(dc, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
177 }
178 
179 void dcn21_set_abm_immediate_disable(struct pipe_ctx *pipe_ctx)
180 {
181 	struct abm *abm = pipe_ctx->stream_res.abm;
182 	uint32_t otg_inst = pipe_ctx->stream_res.tg->inst;
183 	struct panel_cntl *panel_cntl = pipe_ctx->stream->link->panel_cntl;
184 	struct dmcu *dmcu = pipe_ctx->stream->ctx->dc->res_pool->dmcu;
185 
186 	if (dmcu) {
187 		dce110_set_abm_immediate_disable(pipe_ctx);
188 		return;
189 	}
190 
191 	if (abm && panel_cntl) {
192 		if (abm->funcs && abm->funcs->set_pipe_ex) {
193 			abm->funcs->set_pipe_ex(abm, otg_inst, SET_ABM_PIPE_IMMEDIATELY_DISABLE,
194 					panel_cntl->inst, panel_cntl->pwrseq_inst);
195 		} else {
196 				dmub_abm_set_pipe(abm,
197 						otg_inst,
198 						SET_ABM_PIPE_IMMEDIATELY_DISABLE,
199 						panel_cntl->inst,
200 						panel_cntl->pwrseq_inst);
201 		}
202 		panel_cntl->funcs->store_backlight_level(panel_cntl);
203 	}
204 }
205 
206 void dcn21_set_pipe(struct pipe_ctx *pipe_ctx)
207 {
208 	struct abm *abm = pipe_ctx->stream_res.abm;
209 	uint32_t otg_inst = pipe_ctx->stream_res.tg->inst;
210 	struct panel_cntl *panel_cntl = pipe_ctx->stream->link->panel_cntl;
211 	struct dmcu *dmcu = pipe_ctx->stream->ctx->dc->res_pool->dmcu;
212 
213 	if (dmcu) {
214 		dce110_set_pipe(pipe_ctx);
215 		return;
216 	}
217 
218 	if (abm && panel_cntl) {
219 		if (abm->funcs && abm->funcs->set_pipe_ex) {
220 			abm->funcs->set_pipe_ex(abm,
221 					otg_inst,
222 					SET_ABM_PIPE_NORMAL,
223 					panel_cntl->inst,
224 					panel_cntl->pwrseq_inst);
225 		} else {
226 				dmub_abm_set_pipe(abm, otg_inst,
227 						SET_ABM_PIPE_NORMAL,
228 						panel_cntl->inst,
229 						panel_cntl->pwrseq_inst);
230 		}
231 	}
232 }
233 
234 bool dcn21_set_backlight_level(struct pipe_ctx *pipe_ctx,
235 		uint32_t backlight_pwm_u16_16,
236 		uint32_t frame_ramp)
237 {
238 	struct dc_context *dc = pipe_ctx->stream->ctx;
239 	struct abm *abm = pipe_ctx->stream_res.abm;
240 	struct panel_cntl *panel_cntl = pipe_ctx->stream->link->panel_cntl;
241 
242 	if (dc->dc->res_pool->dmcu) {
243 		dce110_set_backlight_level(pipe_ctx, backlight_pwm_u16_16, frame_ramp);
244 		return true;
245 	}
246 
247 	if (abm != NULL) {
248 		uint32_t otg_inst = pipe_ctx->stream_res.tg->inst;
249 
250 		if (abm && panel_cntl) {
251 			if (abm->funcs && abm->funcs->set_pipe_ex) {
252 				abm->funcs->set_pipe_ex(abm,
253 						otg_inst,
254 						SET_ABM_PIPE_NORMAL,
255 						panel_cntl->inst,
256 						panel_cntl->pwrseq_inst);
257 			} else {
258 					dmub_abm_set_pipe(abm,
259 							otg_inst,
260 							SET_ABM_PIPE_NORMAL,
261 							panel_cntl->inst,
262 							panel_cntl->pwrseq_inst);
263 			}
264 		}
265 	}
266 
267 	if (abm && abm->funcs && abm->funcs->set_backlight_level_pwm)
268 		abm->funcs->set_backlight_level_pwm(abm, backlight_pwm_u16_16,
269 			frame_ramp, 0, panel_cntl->inst);
270 	else
271 		dmub_abm_set_backlight(dc, backlight_pwm_u16_16, frame_ramp, panel_cntl->inst);
272 
273 	return true;
274 }
275 
276 bool dcn21_is_abm_supported(struct dc *dc,
277 		struct dc_state *context, struct dc_stream_state *stream)
278 {
279 	int i;
280 
281 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
282 		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
283 
284 		if (pipe_ctx->stream == stream &&
285 				(pipe_ctx->prev_odm_pipe == NULL && pipe_ctx->next_odm_pipe == NULL))
286 			return true;
287 	}
288 	return false;
289 }
290 
291