xref: /openbmc/linux/drivers/gpu/drm/radeon/rv770_dpm.h (revision 2a598d0b)
1 /*
2  * Copyright 2011 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  */
23 #ifndef __RV770_DPM_H__
24 #define __RV770_DPM_H__
25 
26 #include "radeon.h"
27 #include "rv770_smc.h"
28 
29 struct rv770_clock_registers {
30 	u32 cg_spll_func_cntl;
31 	u32 cg_spll_func_cntl_2;
32 	u32 cg_spll_func_cntl_3;
33 	u32 cg_spll_spread_spectrum;
34 	u32 cg_spll_spread_spectrum_2;
35 	u32 mpll_ad_func_cntl;
36 	u32 mpll_ad_func_cntl_2;
37 	u32 mpll_dq_func_cntl;
38 	u32 mpll_dq_func_cntl_2;
39 	u32 mclk_pwrmgt_cntl;
40 	u32 dll_cntl;
41 	u32 mpll_ss1;
42 	u32 mpll_ss2;
43 };
44 
45 struct rv730_clock_registers {
46 	u32 cg_spll_func_cntl;
47 	u32 cg_spll_func_cntl_2;
48 	u32 cg_spll_func_cntl_3;
49 	u32 cg_spll_spread_spectrum;
50 	u32 cg_spll_spread_spectrum_2;
51 	u32 mclk_pwrmgt_cntl;
52 	u32 dll_cntl;
53 	u32 mpll_func_cntl;
54 	u32 mpll_func_cntl2;
55 	u32 mpll_func_cntl3;
56 	u32 mpll_ss;
57 	u32 mpll_ss2;
58 };
59 
60 union r7xx_clock_registers {
61 	struct rv770_clock_registers rv770;
62 	struct rv730_clock_registers rv730;
63 };
64 
65 struct vddc_table_entry {
66 	u16 vddc;
67 	u8 vddc_index;
68 	u8 high_smio;
69 	u32 low_smio;
70 };
71 
72 #define MAX_NO_OF_MVDD_VALUES 2
73 #define MAX_NO_VREG_STEPS 32
74 
75 struct rv7xx_power_info {
76 	/* flags */
77 	bool mem_gddr5;
78 	bool pcie_gen2;
79 	bool dynamic_pcie_gen2;
80 	bool acpi_pcie_gen2;
81 	bool boot_in_gen2;
82 	bool voltage_control; /* vddc */
83 	bool mvdd_control;
84 	bool sclk_ss;
85 	bool mclk_ss;
86 	bool dynamic_ss;
87 	bool gfx_clock_gating;
88 	bool mg_clock_gating;
89 	bool mgcgtssm;
90 	bool power_gating;
91 	bool thermal_protection;
92 	bool display_gap;
93 	bool dcodt;
94 	bool ulps;
95 	/* registers */
96 	union r7xx_clock_registers clk_regs;
97 	u32 s0_vid_lower_smio_cntl;
98 	/* voltage */
99 	u32 vddc_mask_low;
100 	u32 mvdd_mask_low;
101 	u32 mvdd_split_frequency;
102 	u32 mvdd_low_smio[MAX_NO_OF_MVDD_VALUES];
103 	u16 max_vddc;
104 	u16 max_vddc_in_table;
105 	u16 min_vddc_in_table;
106 	struct vddc_table_entry vddc_table[MAX_NO_VREG_STEPS];
107 	u8 valid_vddc_entries;
108 	/* dc odt */
109 	u32 mclk_odt_threshold;
110 	u8 odt_value_0[2];
111 	u8 odt_value_1[2];
112 	/* stored values */
113 	u32 boot_sclk;
114 	u16 acpi_vddc;
115 	u32 ref_div;
116 	u32 active_auto_throttle_sources;
117 	u32 mclk_stutter_mode_threshold;
118 	u32 mclk_strobe_mode_threshold;
119 	u32 mclk_edc_enable_threshold;
120 	u32 bsp;
121 	u32 bsu;
122 	u32 pbsp;
123 	u32 pbsu;
124 	u32 dsp;
125 	u32 psp;
126 	u32 asi;
127 	u32 pasi;
128 	u32 vrc;
129 	u32 restricted_levels;
130 	u32 rlp;
131 	u32 rmp;
132 	u32 lhp;
133 	u32 lmp;
134 	/* smc offsets */
135 	u16 state_table_start;
136 	u16 soft_regs_start;
137 	u16 sram_end;
138 	/* scratch structs */
139 	RV770_SMC_STATETABLE smc_statetable;
140 };
141 
142 struct rv7xx_pl {
143 	u32 sclk;
144 	u32 mclk;
145 	u16 vddc;
146 	u16 vddci; /* eg+ only */
147 	u32 flags;
148 	enum radeon_pcie_gen pcie_gen; /* si+ only */
149 };
150 
151 struct rv7xx_ps {
152 	struct rv7xx_pl high;
153 	struct rv7xx_pl medium;
154 	struct rv7xx_pl low;
155 	bool dc_compatible;
156 };
157 
158 #define RV770_RLP_DFLT                                10
159 #define RV770_RMP_DFLT                                25
160 #define RV770_LHP_DFLT                                25
161 #define RV770_LMP_DFLT                                10
162 #define RV770_VRC_DFLT                                0x003f
163 #define RV770_ASI_DFLT                                1000
164 #define RV770_HASI_DFLT                               200000
165 #define RV770_MGCGTTLOCAL0_DFLT                       0x00100000
166 #define RV7XX_MGCGTTLOCAL0_DFLT                       0
167 #define RV770_MGCGTTLOCAL1_DFLT                       0xFFFF0000
168 #define RV770_MGCGCGTSSMCTRL_DFLT                     0x55940000
169 
170 #define MVDD_LOW_INDEX  0
171 #define MVDD_HIGH_INDEX 1
172 
173 #define MVDD_LOW_VALUE  0
174 #define MVDD_HIGH_VALUE 0xffff
175 
176 #define RV770_DEFAULT_VCLK_FREQ  53300 /* 10 khz */
177 #define RV770_DEFAULT_DCLK_FREQ  40000 /* 10 khz */
178 
179 /* rv730/rv710 */
180 int rv730_populate_sclk_value(struct radeon_device *rdev,
181 			      u32 engine_clock,
182 			      RV770_SMC_SCLK_VALUE *sclk);
183 int rv730_populate_mclk_value(struct radeon_device *rdev,
184 			      u32 engine_clock, u32 memory_clock,
185 			      LPRV7XX_SMC_MCLK_VALUE mclk);
186 void rv730_read_clock_registers(struct radeon_device *rdev);
187 int rv730_populate_smc_acpi_state(struct radeon_device *rdev,
188 				  RV770_SMC_STATETABLE *table);
189 int rv730_populate_smc_initial_state(struct radeon_device *rdev,
190 				     struct radeon_ps *radeon_initial_state,
191 				     RV770_SMC_STATETABLE *table);
192 void rv730_program_memory_timing_parameters(struct radeon_device *rdev,
193 					    struct radeon_ps *radeon_state);
194 void rv730_power_gating_enable(struct radeon_device *rdev,
195 			       bool enable);
196 void rv730_start_dpm(struct radeon_device *rdev);
197 void rv730_stop_dpm(struct radeon_device *rdev);
198 void rv730_program_dcodt(struct radeon_device *rdev, bool use_dcodt);
199 void rv730_get_odt_values(struct radeon_device *rdev);
200 
201 /* rv740 */
202 int rv740_populate_sclk_value(struct radeon_device *rdev, u32 engine_clock,
203 			      RV770_SMC_SCLK_VALUE *sclk);
204 int rv740_populate_mclk_value(struct radeon_device *rdev,
205 			      u32 engine_clock, u32 memory_clock,
206 			      RV7XX_SMC_MCLK_VALUE *mclk);
207 void rv740_read_clock_registers(struct radeon_device *rdev);
208 int rv740_populate_smc_acpi_state(struct radeon_device *rdev,
209 				  RV770_SMC_STATETABLE *table);
210 void rv740_enable_mclk_spread_spectrum(struct radeon_device *rdev,
211 				       bool enable);
212 u8 rv740_get_mclk_frequency_ratio(u32 memory_clock);
213 u32 rv740_get_dll_speed(bool is_gddr5, u32 memory_clock);
214 u32 rv740_get_decoded_reference_divider(u32 encoded_ref);
215 
216 /* rv770 */
217 u32 rv770_map_clkf_to_ibias(struct radeon_device *rdev, u32 clkf);
218 int rv770_populate_vddc_value(struct radeon_device *rdev, u16 vddc,
219 			      RV770_SMC_VOLTAGE_VALUE *voltage);
220 int rv770_populate_mvdd_value(struct radeon_device *rdev, u32 mclk,
221 			      RV770_SMC_VOLTAGE_VALUE *voltage);
222 u8 rv770_get_seq_value(struct radeon_device *rdev,
223 		       struct rv7xx_pl *pl);
224 int rv770_populate_initial_mvdd_value(struct radeon_device *rdev,
225 				      RV770_SMC_VOLTAGE_VALUE *voltage);
226 u32 rv770_calculate_memory_refresh_rate(struct radeon_device *rdev,
227 					u32 engine_clock);
228 void rv770_program_response_times(struct radeon_device *rdev);
229 int rv770_populate_smc_sp(struct radeon_device *rdev,
230 			  struct radeon_ps *radeon_state,
231 			  RV770_SMC_SWSTATE *smc_state);
232 int rv770_populate_smc_t(struct radeon_device *rdev,
233 			 struct radeon_ps *radeon_state,
234 			 RV770_SMC_SWSTATE *smc_state);
235 void rv770_read_voltage_smio_registers(struct radeon_device *rdev);
236 void rv770_get_memory_type(struct radeon_device *rdev);
237 void r7xx_start_smc(struct radeon_device *rdev);
238 u8 rv770_get_memory_module_index(struct radeon_device *rdev);
239 void rv770_get_max_vddc(struct radeon_device *rdev);
240 void rv770_get_pcie_gen2_status(struct radeon_device *rdev);
241 void rv770_enable_acpi_pm(struct radeon_device *rdev);
242 void rv770_restore_cgcg(struct radeon_device *rdev);
243 bool rv770_dpm_enabled(struct radeon_device *rdev);
244 void rv770_enable_voltage_control(struct radeon_device *rdev,
245 				  bool enable);
246 void rv770_enable_backbias(struct radeon_device *rdev,
247 			   bool enable);
248 void rv770_enable_thermal_protection(struct radeon_device *rdev,
249 				     bool enable);
250 void rv770_enable_auto_throttle_source(struct radeon_device *rdev,
251 				       enum radeon_dpm_auto_throttle_src source,
252 				       bool enable);
253 void rv770_setup_bsp(struct radeon_device *rdev);
254 void rv770_program_git(struct radeon_device *rdev);
255 void rv770_program_tp(struct radeon_device *rdev);
256 void rv770_program_tpp(struct radeon_device *rdev);
257 void rv770_program_sstp(struct radeon_device *rdev);
258 void rv770_program_engine_speed_parameters(struct radeon_device *rdev);
259 void rv770_program_vc(struct radeon_device *rdev);
260 void rv770_clear_vc(struct radeon_device *rdev);
261 int rv770_upload_firmware(struct radeon_device *rdev);
262 void rv770_stop_dpm(struct radeon_device *rdev);
263 void r7xx_stop_smc(struct radeon_device *rdev);
264 void rv770_reset_smio_status(struct radeon_device *rdev);
265 int rv770_restrict_performance_levels_before_switch(struct radeon_device *rdev);
266 int rv770_dpm_force_performance_level(struct radeon_device *rdev,
267 				      enum radeon_dpm_forced_level level);
268 int rv770_halt_smc(struct radeon_device *rdev);
269 int rv770_resume_smc(struct radeon_device *rdev);
270 int rv770_set_sw_state(struct radeon_device *rdev);
271 int rv770_set_boot_state(struct radeon_device *rdev);
272 int rv7xx_parse_power_table(struct radeon_device *rdev);
273 void rv770_set_uvd_clock_before_set_eng_clock(struct radeon_device *rdev,
274 					      struct radeon_ps *new_ps,
275 					      struct radeon_ps *old_ps);
276 void rv770_set_uvd_clock_after_set_eng_clock(struct radeon_device *rdev,
277 					     struct radeon_ps *new_ps,
278 					     struct radeon_ps *old_ps);
279 void rv770_get_engine_memory_ss(struct radeon_device *rdev);
280 
281 /* smc */
282 int rv770_write_smc_soft_register(struct radeon_device *rdev,
283 				  u16 reg_offset, u32 value);
284 
285 #endif
286