1 /*
2  * Copyright 2015 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 /**
27  * This file defines external dependencies of Display Core.
28  */
29 
30 #ifndef __DM_SERVICES_H__
31 
32 #define __DM_SERVICES_H__
33 
34 /* TODO: remove when DC is complete. */
35 #include "dm_services_types.h"
36 #include "logger_interface.h"
37 #include "link_service_types.h"
38 
39 #undef DEPRECATED
40 
41 struct dmub_srv;
42 struct dc_dmub_srv;
43 union dmub_rb_cmd;
44 
45 irq_handler_idx dm_register_interrupt(
46 	struct dc_context *ctx,
47 	struct dc_interrupt_params *int_params,
48 	interrupt_handler ih,
49 	void *handler_args);
50 
51 /*
52  *
53  * GPU registers access
54  *
55  */
56 uint32_t dm_read_reg_func(const struct dc_context *ctx, uint32_t address,
57 			  const char *func_name);
58 
59 /* enable for debugging new code, this adds 50k to the driver size. */
60 /* #define DM_CHECK_ADDR_0 */
61 
62 void dm_write_reg_func(const struct dc_context *ctx, uint32_t address,
63 		       uint32_t value, const char *func_name);
64 
65 #define dm_read_reg(ctx, address)	\
66 	dm_read_reg_func(ctx, address, __func__)
67 
68 #define dm_write_reg(ctx, address, value)	\
69 	dm_write_reg_func(ctx, address, value, __func__)
70 
dm_read_index_reg(const struct dc_context * ctx,enum cgs_ind_reg addr_space,uint32_t index)71 static inline uint32_t dm_read_index_reg(
72 	const struct dc_context *ctx,
73 	enum cgs_ind_reg addr_space,
74 	uint32_t index)
75 {
76 	return cgs_read_ind_register(ctx->cgs_device, addr_space, index);
77 }
78 
dm_write_index_reg(const struct dc_context * ctx,enum cgs_ind_reg addr_space,uint32_t index,uint32_t value)79 static inline void dm_write_index_reg(
80 	const struct dc_context *ctx,
81 	enum cgs_ind_reg addr_space,
82 	uint32_t index,
83 	uint32_t value)
84 {
85 	cgs_write_ind_register(ctx->cgs_device, addr_space, index, value);
86 }
87 
get_reg_field_value_ex(uint32_t reg_value,uint32_t mask,uint8_t shift)88 static inline uint32_t get_reg_field_value_ex(
89 	uint32_t reg_value,
90 	uint32_t mask,
91 	uint8_t shift)
92 {
93 	return (mask & reg_value) >> shift;
94 }
95 
96 #define get_reg_field_value(reg_value, reg_name, reg_field)\
97 	get_reg_field_value_ex(\
98 		(reg_value),\
99 		reg_name ## __ ## reg_field ## _MASK,\
100 		reg_name ## __ ## reg_field ## __SHIFT)
101 
set_reg_field_value_ex(uint32_t reg_value,uint32_t value,uint32_t mask,uint8_t shift)102 static inline uint32_t set_reg_field_value_ex(
103 	uint32_t reg_value,
104 	uint32_t value,
105 	uint32_t mask,
106 	uint8_t shift)
107 {
108 	ASSERT(mask != 0);
109 	return (reg_value & ~mask) | (mask & (value << shift));
110 }
111 
112 #define set_reg_field_value(reg_value, value, reg_name, reg_field)\
113 	(reg_value) = set_reg_field_value_ex(\
114 		(reg_value),\
115 		(value),\
116 		reg_name ## __ ## reg_field ## _MASK,\
117 		reg_name ## __ ## reg_field ## __SHIFT)
118 
119 uint32_t generic_reg_set_ex(const struct dc_context *ctx,
120 		uint32_t addr, uint32_t reg_val, int n,
121 		uint8_t shift1, uint32_t mask1, uint32_t field_value1, ...);
122 
123 uint32_t generic_reg_update_ex(const struct dc_context *ctx,
124 		uint32_t addr, int n,
125 		uint8_t shift1, uint32_t mask1, uint32_t field_value1, ...);
126 
127 struct dc_dmub_srv *dc_dmub_srv_create(struct dc *dc, struct dmub_srv *dmub);
128 void dc_dmub_srv_destroy(struct dc_dmub_srv **dmub_srv);
129 
130 void reg_sequence_start_gather(const struct dc_context *ctx);
131 void reg_sequence_start_execute(const struct dc_context *ctx);
132 void reg_sequence_wait_done(const struct dc_context *ctx);
133 
134 #define FD(reg_field)	reg_field ## __SHIFT, \
135 						reg_field ## _MASK
136 
137 /*
138  * return number of poll before condition is met
139  * return 0 if condition is not meet after specified time out tries
140  */
141 void generic_reg_wait(const struct dc_context *ctx,
142 	uint32_t addr, uint32_t mask, uint32_t shift, uint32_t condition_value,
143 	unsigned int delay_between_poll_us, unsigned int time_out_num_tries,
144 	const char *func_name, int line);
145 
146 unsigned int snprintf_count(char *pBuf, unsigned int bufSize, char *fmt, ...);
147 
148 /* These macros need to be used with soc15 registers in order to retrieve
149  * the actual offset.
150  */
151 #define dm_write_reg_soc15(ctx, reg, inst_offset, value)	\
152 		dm_write_reg_func(ctx, reg + DCE_BASE.instance[0].segment[reg##_BASE_IDX] + inst_offset, value, __func__)
153 
154 #define dm_read_reg_soc15(ctx, reg, inst_offset)	\
155 		dm_read_reg_func(ctx, reg + DCE_BASE.instance[0].segment[reg##_BASE_IDX] + inst_offset, __func__)
156 
157 #define generic_reg_update_soc15(ctx, inst_offset, reg_name, n, ...)\
158 		generic_reg_update_ex(ctx, DCE_BASE.instance[0].segment[mm##reg_name##_BASE_IDX] +  mm##reg_name + inst_offset, \
159 		n, __VA_ARGS__)
160 
161 #define generic_reg_set_soc15(ctx, inst_offset, reg_name, n, ...)\
162 		generic_reg_set_ex(ctx, DCE_BASE.instance[0].segment[mm##reg_name##_BASE_IDX] + mm##reg_name + inst_offset, 0, \
163 		n, __VA_ARGS__)
164 
165 #define get_reg_field_value_soc15(reg_value, block, reg_num, reg_name, reg_field)\
166 	get_reg_field_value_ex(\
167 		(reg_value),\
168 		block ## reg_num ## _ ## reg_name ## __ ## reg_field ## _MASK,\
169 		block ## reg_num ## _ ## reg_name ## __ ## reg_field ## __SHIFT)
170 
171 #define set_reg_field_value_soc15(reg_value, value, block, reg_num, reg_name, reg_field)\
172 	(reg_value) = set_reg_field_value_ex(\
173 		(reg_value),\
174 		(value),\
175 		block ## reg_num ## _ ## reg_name ## __ ## reg_field ## _MASK,\
176 		block ## reg_num ## _ ## reg_name ## __ ## reg_field ## __SHIFT)
177 
178 /**************************************
179  * Power Play (PP) interfaces
180  **************************************/
181 
182 /* Gets valid clocks levels from pplib
183  *
184  * input: clk_type - display clk / sclk / mem clk
185  *
186  * output: array of valid clock levels for given type in ascending order,
187  * with invalid levels filtered out
188  *
189  */
190 bool dm_pp_get_clock_levels_by_type(
191 	const struct dc_context *ctx,
192 	enum dm_pp_clock_type clk_type,
193 	struct dm_pp_clock_levels *clk_level_info);
194 
195 bool dm_pp_get_clock_levels_by_type_with_latency(
196 	const struct dc_context *ctx,
197 	enum dm_pp_clock_type clk_type,
198 	struct dm_pp_clock_levels_with_latency *clk_level_info);
199 
200 bool dm_pp_get_clock_levels_by_type_with_voltage(
201 	const struct dc_context *ctx,
202 	enum dm_pp_clock_type clk_type,
203 	struct dm_pp_clock_levels_with_voltage *clk_level_info);
204 
205 bool dm_pp_notify_wm_clock_changes(
206 	const struct dc_context *ctx,
207 	struct dm_pp_wm_sets_with_clock_ranges *wm_with_clock_ranges);
208 
209 void dm_pp_get_funcs(struct dc_context *ctx,
210 		struct pp_smu_funcs *funcs);
211 
212 /* DAL calls this function to notify PP about completion of Mode Set.
213  * For PP it means that current DCE clocks are those which were returned
214  * by dc_service_pp_pre_dce_clock_change(), in the 'output' parameter.
215  *
216  * If the clocks are higher than before, then PP does nothing.
217  *
218  * If the clocks are lower than before, then PP reduces the voltage.
219  *
220  * \returns	true - call is successful
221  *		false - call failed
222  */
223 bool dm_pp_apply_display_requirements(
224 	const struct dc_context *ctx,
225 	const struct dm_pp_display_configuration *pp_display_cfg);
226 
227 bool dm_pp_apply_power_level_change_request(
228 	const struct dc_context *ctx,
229 	struct dm_pp_power_level_change_request *level_change_req);
230 
231 bool dm_pp_apply_clock_for_voltage_request(
232 	const struct dc_context *ctx,
233 	struct dm_pp_clock_for_voltage_req *clock_for_voltage_req);
234 
235 bool dm_pp_get_static_clocks(
236 	const struct dc_context *ctx,
237 	struct dm_pp_static_clock_info *static_clk_info);
238 
239 /****** end of PP interfaces ******/
240 
241 struct persistent_data_flag {
242 	bool save_per_link;
243 	bool save_per_edid;
244 };
245 
246 bool dm_query_extended_brightness_caps
247 	(struct dc_context *ctx, enum dm_acpi_display_type display,
248 			struct dm_acpi_atif_backlight_caps *pCaps);
249 
250 bool dm_dmcu_set_pipe(struct dc_context *ctx, unsigned int controller_id);
251 
252 /*
253  *
254  * print-out services
255  *
256  */
257 #define dm_log_to_buffer(buffer, size, fmt, args)\
258 	vsnprintf(buffer, size, fmt, args)
259 
dm_get_timestamp(struct dc_context * ctx)260 static inline unsigned long long dm_get_timestamp(struct dc_context *ctx)
261 {
262 	return ktime_get_raw_ns();
263 }
264 
265 unsigned long long dm_get_elapse_time_in_ns(struct dc_context *ctx,
266 		unsigned long long current_time_stamp,
267 		unsigned long long last_time_stamp);
268 
269 /*
270  * performance tracing
271  */
272 void dm_perf_trace_timestamp(const char *func_name, unsigned int line, struct dc_context *ctx);
273 
274 #define PERF_TRACE()	dm_perf_trace_timestamp(__func__, __LINE__, CTX)
275 #define PERF_TRACE_CTX(__CTX)	dm_perf_trace_timestamp(__func__, __LINE__, __CTX)
276 
277 /*
278  * DMUB Interfaces
279  */
280 bool dm_execute_dmub_cmd(const struct dc_context *ctx, union dmub_rb_cmd *cmd, enum dm_dmub_wait_type wait_type);
281 bool dm_execute_dmub_cmd_list(const struct dc_context *ctx, unsigned int count, union dmub_rb_cmd *cmd, enum dm_dmub_wait_type wait_type);
282 
283 /*
284  * Debug and verification hooks
285  */
286 
287 void dm_dtn_log_begin(struct dc_context *ctx,
288 	struct dc_log_buffer_ctx *log_ctx);
289 void dm_dtn_log_append_v(struct dc_context *ctx,
290 	struct dc_log_buffer_ctx *log_ctx,
291 	const char *msg, ...);
292 void dm_dtn_log_end(struct dc_context *ctx,
293 	struct dc_log_buffer_ctx *log_ctx);
294 
295 char *dce_version_to_string(const int version);
296 
297 #endif /* __DM_SERVICES_H__ */
298