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1060029f JZ |
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 | */ | |
23 | #include <linux/types.h> | |
24 | #include <linux/kernel.h> | |
25 | #include <linux/slab.h> | |
26 | #include <linux/gfp.h> | |
27 | ||
28 | #include "smumgr.h" | |
29 | #include "tonga_smumgr.h" | |
30 | #include "pp_debug.h" | |
31 | #include "smu_ucode_xfer_vi.h" | |
32 | #include "tonga_ppsmc.h" | |
33 | #include "smu/smu_7_1_2_d.h" | |
34 | #include "smu/smu_7_1_2_sh_mask.h" | |
35 | #include "cgs_common.h" | |
14860220 | 36 | #include "tonga_smc.h" |
ac43f080 | 37 | #include "smu7_smumgr.h" |
1060029f | 38 | |
1060029f JZ |
39 | |
40 | static int tonga_start_in_protection_mode(struct pp_smumgr *smumgr) | |
41 | { | |
42 | int result; | |
43 | ||
44 | /* Assert reset */ | |
45 | SMUM_WRITE_VFPF_INDIRECT_FIELD(smumgr->device, CGS_IND_REG__SMC, | |
46 | SMC_SYSCON_RESET_CNTL, rst_reg, 1); | |
47 | ||
ac43f080 | 48 | result = smu7_upload_smu_firmware_image(smumgr); |
1060029f JZ |
49 | if (result) |
50 | return result; | |
51 | ||
52 | /* Clear status */ | |
53 | cgs_write_ind_register(smumgr->device, CGS_IND_REG__SMC, | |
54 | ixSMU_STATUS, 0); | |
55 | ||
56 | /* Enable clock */ | |
57 | SMUM_WRITE_VFPF_INDIRECT_FIELD(smumgr->device, CGS_IND_REG__SMC, | |
58 | SMC_SYSCON_CLOCK_CNTL_0, ck_disable, 0); | |
59 | ||
60 | /* De-assert reset */ | |
61 | SMUM_WRITE_VFPF_INDIRECT_FIELD(smumgr->device, CGS_IND_REG__SMC, | |
62 | SMC_SYSCON_RESET_CNTL, rst_reg, 0); | |
63 | ||
64 | /* Set SMU Auto Start */ | |
65 | SMUM_WRITE_VFPF_INDIRECT_FIELD(smumgr->device, CGS_IND_REG__SMC, | |
66 | SMU_INPUT_DATA, AUTO_START, 1); | |
67 | ||
68 | /* Clear firmware interrupt enable flag */ | |
69 | cgs_write_ind_register(smumgr->device, CGS_IND_REG__SMC, | |
70 | ixFIRMWARE_FLAGS, 0); | |
71 | ||
72 | SMUM_WAIT_VFPF_INDIRECT_FIELD(smumgr, SMC_IND, | |
73 | RCU_UC_EVENTS, INTERRUPTS_ENABLED, 1); | |
74 | ||
75 | /** | |
76 | * Call Test SMU message with 0x20000 offset to trigger SMU start | |
77 | */ | |
ac43f080 | 78 | smu7_send_msg_to_smc_offset(smumgr); |
1060029f JZ |
79 | |
80 | /* Wait for done bit to be set */ | |
81 | SMUM_WAIT_VFPF_INDIRECT_FIELD_UNEQUAL(smumgr, SMC_IND, | |
82 | SMU_STATUS, SMU_DONE, 0); | |
83 | ||
84 | /* Check pass/failed indicator */ | |
85 | if (1 != SMUM_READ_VFPF_INDIRECT_FIELD(smumgr->device, | |
86 | CGS_IND_REG__SMC, SMU_STATUS, SMU_PASS)) { | |
87 | printk(KERN_ERR "[ powerplay ] SMU Firmware start failed\n"); | |
88 | return -EINVAL; | |
89 | } | |
90 | ||
91 | /* Wait for firmware to initialize */ | |
92 | SMUM_WAIT_VFPF_INDIRECT_FIELD(smumgr, SMC_IND, | |
93 | FIRMWARE_FLAGS, INTERRUPTS_ENABLED, 1); | |
94 | ||
95 | return 0; | |
96 | } | |
97 | ||
98 | ||
99 | static int tonga_start_in_non_protection_mode(struct pp_smumgr *smumgr) | |
100 | { | |
101 | int result = 0; | |
102 | ||
103 | /* wait for smc boot up */ | |
104 | SMUM_WAIT_VFPF_INDIRECT_FIELD_UNEQUAL(smumgr, SMC_IND, | |
105 | RCU_UC_EVENTS, boot_seq_done, 0); | |
106 | ||
107 | /*Clear firmware interrupt enable flag*/ | |
108 | cgs_write_ind_register(smumgr->device, CGS_IND_REG__SMC, | |
109 | ixFIRMWARE_FLAGS, 0); | |
110 | ||
111 | ||
112 | SMUM_WRITE_VFPF_INDIRECT_FIELD(smumgr->device, CGS_IND_REG__SMC, | |
113 | SMC_SYSCON_RESET_CNTL, rst_reg, 1); | |
114 | ||
ac43f080 | 115 | result = smu7_upload_smu_firmware_image(smumgr); |
1060029f JZ |
116 | |
117 | if (result != 0) | |
118 | return result; | |
119 | ||
120 | /* Set smc instruct start point at 0x0 */ | |
ac43f080 | 121 | smu7_program_jump_on_start(smumgr); |
1060029f JZ |
122 | |
123 | ||
124 | SMUM_WRITE_VFPF_INDIRECT_FIELD(smumgr->device, CGS_IND_REG__SMC, | |
125 | SMC_SYSCON_CLOCK_CNTL_0, ck_disable, 0); | |
126 | ||
127 | /*De-assert reset*/ | |
128 | SMUM_WRITE_VFPF_INDIRECT_FIELD(smumgr->device, CGS_IND_REG__SMC, | |
129 | SMC_SYSCON_RESET_CNTL, rst_reg, 0); | |
130 | ||
131 | /* Wait for firmware to initialize */ | |
132 | SMUM_WAIT_VFPF_INDIRECT_FIELD(smumgr, SMC_IND, | |
133 | FIRMWARE_FLAGS, INTERRUPTS_ENABLED, 1); | |
134 | ||
135 | return result; | |
136 | } | |
137 | ||
138 | static int tonga_start_smu(struct pp_smumgr *smumgr) | |
139 | { | |
140 | int result; | |
141 | ||
142 | /* Only start SMC if SMC RAM is not running */ | |
ac43f080 | 143 | if (!smu7_is_smc_ram_running(smumgr)) { |
1060029f JZ |
144 | /*Check if SMU is running in protected mode*/ |
145 | if (0 == SMUM_READ_VFPF_INDIRECT_FIELD(smumgr->device, CGS_IND_REG__SMC, | |
146 | SMU_FIRMWARE, SMU_MODE)) { | |
147 | result = tonga_start_in_non_protection_mode(smumgr); | |
148 | if (result) | |
149 | return result; | |
150 | } else { | |
151 | result = tonga_start_in_protection_mode(smumgr); | |
152 | if (result) | |
153 | return result; | |
154 | } | |
155 | } | |
156 | ||
ac43f080 | 157 | result = smu7_request_smu_load_fw(smumgr); |
1060029f JZ |
158 | |
159 | return result; | |
160 | } | |
161 | ||
162 | /** | |
163 | * Write a 32bit value to the SMC SRAM space. | |
164 | * ALL PARAMETERS ARE IN HOST BYTE ORDER. | |
165 | * @param smumgr the address of the powerplay hardware manager. | |
166 | * @param smcAddress the address in the SMC RAM to access. | |
167 | * @param value to write to the SMC SRAM. | |
168 | */ | |
169 | static int tonga_smu_init(struct pp_smumgr *smumgr) | |
170 | { | |
ac43f080 RZ |
171 | struct tonga_smumgr *smu_data = (struct tonga_smumgr *)(smumgr->backend); |
172 | ||
14860220 RZ |
173 | int i; |
174 | ||
ac43f080 RZ |
175 | if (smu7_init(smumgr)) |
176 | return -EINVAL; | |
1060029f | 177 | |
14860220 | 178 | for (i = 0; i < SMU72_MAX_LEVELS_GRAPHICS; i++) |
ac43f080 | 179 | smu_data->activity_target[i] = 30; |
14860220 | 180 | |
1060029f JZ |
181 | return 0; |
182 | } | |
183 | ||
184 | static const struct pp_smumgr_func tonga_smu_funcs = { | |
185 | .smu_init = &tonga_smu_init, | |
ac43f080 | 186 | .smu_fini = &smu7_smu_fini, |
1060029f | 187 | .start_smu = &tonga_start_smu, |
ac43f080 RZ |
188 | .check_fw_load_finish = &smu7_check_fw_load_finish, |
189 | .request_smu_load_fw = &smu7_request_smu_load_fw, | |
190 | .request_smu_load_specific_fw = NULL, | |
191 | .send_msg_to_smc = &smu7_send_msg_to_smc, | |
192 | .send_msg_to_smc_with_parameter = &smu7_send_msg_to_smc_with_parameter, | |
1060029f JZ |
193 | .download_pptable_settings = NULL, |
194 | .upload_pptable_settings = NULL, | |
14860220 RZ |
195 | .update_smc_table = tonga_update_smc_table, |
196 | .get_offsetof = tonga_get_offsetof, | |
197 | .process_firmware_header = tonga_process_firmware_header, | |
198 | .init_smc_table = tonga_init_smc_table, | |
199 | .update_sclk_threshold = tonga_update_sclk_threshold, | |
200 | .thermal_setup_fan_table = tonga_thermal_setup_fan_table, | |
201 | .populate_all_graphic_levels = tonga_populate_all_graphic_levels, | |
202 | .populate_all_memory_levels = tonga_populate_all_memory_levels, | |
203 | .get_mac_definition = tonga_get_mac_definition, | |
204 | .initialize_mc_reg_table = tonga_initialize_mc_reg_table, | |
205 | .is_dpm_running = tonga_is_dpm_running, | |
1060029f JZ |
206 | }; |
207 | ||
208 | int tonga_smum_init(struct pp_smumgr *smumgr) | |
209 | { | |
210 | struct tonga_smumgr *tonga_smu = NULL; | |
211 | ||
212 | tonga_smu = kzalloc(sizeof(struct tonga_smumgr), GFP_KERNEL); | |
213 | ||
214 | if (tonga_smu == NULL) | |
c15c8d70 | 215 | return -ENOMEM; |
1060029f JZ |
216 | |
217 | smumgr->backend = tonga_smu; | |
218 | smumgr->smumgr_funcs = &tonga_smu_funcs; | |
219 | ||
220 | return 0; | |
221 | } |