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