1 /* $NetBSD: amdgpu_fiji_baco.c,v 1.2 2021/12/18 23:45:26 riastradh Exp $ */
2
3 /*
4 * Copyright 2019 Advanced Micro Devices, Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 */
25 #include <sys/cdefs.h>
26 __KERNEL_RCSID(0, "$NetBSD: amdgpu_fiji_baco.c,v 1.2 2021/12/18 23:45:26 riastradh Exp $");
27
28 #include "amdgpu.h"
29 #include "fiji_baco.h"
30
31 #include "gmc/gmc_8_1_d.h"
32 #include "gmc/gmc_8_1_sh_mask.h"
33
34 #include "bif/bif_5_0_d.h"
35 #include "bif/bif_5_0_sh_mask.h"
36
37 #include "dce/dce_10_0_d.h"
38 #include "dce/dce_10_0_sh_mask.h"
39
40 #include "smu/smu_7_1_3_d.h"
41 #include "smu/smu_7_1_3_sh_mask.h"
42
43
44 static const struct baco_cmd_entry gpio_tbl[] =
45 {
46 { CMD_WRITE, mmGPIOPAD_EN, 0, 0, 0, 0x0 },
47 { CMD_WRITE, mmGPIOPAD_PD_EN, 0, 0, 0, 0x0 },
48 { CMD_WRITE, mmGPIOPAD_PU_EN, 0, 0, 0, 0x0 },
49 { CMD_WRITE, mmGPIOPAD_MASK, 0, 0, 0, 0xff77ffff },
50 { CMD_WRITE, mmDC_GPIO_DVODATA_EN, 0, 0, 0, 0x0 },
51 { CMD_WRITE, mmDC_GPIO_DVODATA_MASK, 0, 0, 0, 0xffffffff },
52 { CMD_WRITE, mmDC_GPIO_GENERIC_EN, 0, 0, 0, 0x0 },
53 { CMD_READMODIFYWRITE, mmDC_GPIO_GENERIC_MASK, 0, 0, 0, 0x03333333 },
54 { CMD_WRITE, mmDC_GPIO_SYNCA_EN, 0, 0, 0, 0x0 },
55 { CMD_READMODIFYWRITE, mmDC_GPIO_SYNCA_MASK, 0, 0, 0, 0x00001111 }
56 };
57
58 static const struct baco_cmd_entry enable_fb_req_rej_tbl[] =
59 {
60 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, 0xC0300024 },
61 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, 0x1, 0x0, 0, 0x1 },
62 { CMD_WRITE, mmBIF_FB_EN, 0, 0, 0, 0x0 }
63 };
64
65 static const struct baco_cmd_entry use_bclk_tbl[] =
66 {
67 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_FUNC_CNTL },
68 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL__SPLL_BYPASS_EN_MASK, CG_SPLL_FUNC_CNTL__SPLL_BYPASS_EN__SHIFT, 0, 0x1 },
69 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_FUNC_CNTL_2 },
70 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL_2__SPLL_BYPASS_CHG_MASK, CG_SPLL_FUNC_CNTL_2__SPLL_BYPASS_CHG__SHIFT, 0, 0x1 },
71 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_STATUS },
72 { CMD_WAITFOR, mmGCK_SMC_IND_DATA, CG_SPLL_STATUS__SPLL_CHG_STATUS_MASK, 0, 0xffffffff, 0x2 },
73 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_FUNC_CNTL_2 },
74 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL_2__SPLL_BYPASS_CHG_MASK, CG_SPLL_FUNC_CNTL_2__SPLL_BYPASS_CHG__SHIFT, 0, 0x0 },
75 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL_2__SPLL_CTLREQ_CHG_MASK, CG_SPLL_FUNC_CNTL_2__SPLL_CTLREQ_CHG__SHIFT, 0, 0x1 },
76 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_STATUS },
77 { CMD_WAITFOR, mmGCK_SMC_IND_DATA, CG_SPLL_STATUS__SPLL_CHG_STATUS_MASK, 0, 0xffffffff, 0x2 },
78 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_FUNC_CNTL_2 },
79 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL_2__SPLL_CTLREQ_CHG_MASK, CG_SPLL_FUNC_CNTL_2__SPLL_CTLREQ_CHG__SHIFT, 0, 0x0 },
80 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, 0xC0500170 },
81 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, 0x4000000, 0x1a, 0, 0x1 },
82 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixMPLL_BYPASSCLK_SEL },
83 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, MPLL_BYPASSCLK_SEL__MPLL_CLKOUT_SEL_MASK, MPLL_BYPASSCLK_SEL__MPLL_CLKOUT_SEL__SHIFT, 0, 0x2 }
84 };
85
86 static const struct baco_cmd_entry turn_off_plls_tbl[] =
87 {
88 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_SPLL_FUNC_CNTL },
89 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL__SPLL_RESET_MASK, CG_SPLL_FUNC_CNTL__SPLL_RESET__SHIFT, 0, 0x1 },
90 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_SPLL_FUNC_CNTL__SPLL_PWRON_MASK, CG_SPLL_FUNC_CNTL__SPLL_PWRON__SHIFT, 0, 0x0 },
91 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, 0xC0500170 },
92 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, 0x2000000, 0x19, 0, 0x1 },
93 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, 0x8000000, 0x1b, 0, 0x0 }
94 };
95
96 static const struct baco_cmd_entry clk_req_b_tbl[] =
97 {
98 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_CLKPIN_CNTL_2 },
99 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_CLKPIN_CNTL_2__FORCE_BIF_REFCLK_EN_MASK, CG_CLKPIN_CNTL_2__FORCE_BIF_REFCLK_EN__SHIFT, 0, 0x0 },
100 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixMPLL_BYPASSCLK_SEL },
101 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, MPLL_BYPASSCLK_SEL__MPLL_CLKOUT_SEL_MASK, MPLL_BYPASSCLK_SEL__MPLL_CLKOUT_SEL__SHIFT, 0, 0x4 },
102 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixMISC_CLK_CTRL },
103 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, MISC_CLK_CTRL__DEEP_SLEEP_CLK_SEL_MASK, MISC_CLK_CTRL__DEEP_SLEEP_CLK_SEL__SHIFT, 0, 0x1 },
104 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, MISC_CLK_CTRL__ZCLK_SEL_MASK, MISC_CLK_CTRL__ZCLK_SEL__SHIFT, 0, 0x1 },
105 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixCG_CLKPIN_CNTL },
106 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, CG_CLKPIN_CNTL__BCLK_AS_XCLK_MASK, CG_CLKPIN_CNTL__BCLK_AS_XCLK__SHIFT, 0, 0x0 },
107 { CMD_WRITE, mmGCK_SMC_IND_INDEX, 0, 0, 0, ixTHM_CLK_CNTL },
108 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, THM_CLK_CNTL__CMON_CLK_SEL_MASK, THM_CLK_CNTL__CMON_CLK_SEL__SHIFT, 0, 0x1 },
109 { CMD_READMODIFYWRITE, mmGCK_SMC_IND_DATA, THM_CLK_CNTL__TMON_CLK_SEL_MASK, THM_CLK_CNTL__TMON_CLK_SEL__SHIFT, 0, 0x1 }
110 };
111
112 static const struct baco_cmd_entry enter_baco_tbl[] =
113 {
114 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_EN_MASK, BACO_CNTL__BACO_EN__SHIFT, 0, 0x01 },
115 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_BIF_SCLK_SWITCH_MASK, BACO_CNTL__BACO_BIF_SCLK_SWITCH__SHIFT, 0, 0x01 },
116 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_BIF_SCLK_SWITCH_MASK, 0, 5, 0x40000 },
117 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_BCLK_OFF_MASK, BACO_CNTL__BACO_BCLK_OFF__SHIFT, 0, 0x01 },
118 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_BCLK_OFF_MASK, 0, 5, 0x02 },
119 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_ISO_DIS_MASK, BACO_CNTL__BACO_ISO_DIS__SHIFT, 0, 0x00 },
120 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_ISO_DIS_MASK, 0, 5, 0x00 },
121 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_ANA_ISO_DIS_MASK, BACO_CNTL__BACO_ANA_ISO_DIS__SHIFT, 0, 0x00 },
122 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_ANA_ISO_DIS_MASK, 0, 5, 0x00 },
123 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_POWER_OFF_MASK, BACO_CNTL__BACO_POWER_OFF__SHIFT, 0, 0x01 },
124 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_POWER_OFF_MASK, 0, 5, 0x08 },
125 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_MODE_MASK, 0, 0xffffffff, 0x40 }
126 };
127
128 #define BACO_CNTL__PWRGOOD_MASK BACO_CNTL__PWRGOOD_GPIO_MASK+BACO_CNTL__PWRGOOD_MEM_MASK+BACO_CNTL__PWRGOOD_DVO_MASK
129
130 static const struct baco_cmd_entry exit_baco_tbl[] =
131 {
132 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_RESET_EN_MASK, BACO_CNTL__BACO_RESET_EN__SHIFT, 0, 0x01 },
133 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_BCLK_OFF_MASK, BACO_CNTL__BACO_BCLK_OFF__SHIFT, 0, 0x00 },
134 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_POWER_OFF_MASK, BACO_CNTL__BACO_POWER_OFF__SHIFT, 0, 0x00 },
135 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__PWRGOOD_BF_MASK, 0, 0xffffffff, 0x200 },
136 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_ISO_DIS_MASK, BACO_CNTL__BACO_ISO_DIS__SHIFT, 0, 0x01 },
137 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__PWRGOOD_MASK, 0, 5, 0x1c00 },
138 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_ANA_ISO_DIS_MASK, BACO_CNTL__BACO_ANA_ISO_DIS__SHIFT, 0, 0x01 },
139 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_BIF_SCLK_SWITCH_MASK, BACO_CNTL__BACO_BIF_SCLK_SWITCH__SHIFT, 0, 0x00 },
140 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_RESET_EN_MASK, BACO_CNTL__BACO_RESET_EN__SHIFT, 0, 0x00 },
141 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__RCU_BIF_CONFIG_DONE_MASK, 0, 5, 0x100 },
142 { CMD_READMODIFYWRITE, mmBACO_CNTL, BACO_CNTL__BACO_EN_MASK, BACO_CNTL__BACO_EN__SHIFT, 0, 0x00 },
143 { CMD_WAITFOR, mmBACO_CNTL, BACO_CNTL__BACO_MODE_MASK, 0, 0xffffffff, 0x00 }
144 };
145
146 static const struct baco_cmd_entry clean_baco_tbl[] =
147 {
148 { CMD_WRITE, mmBIOS_SCRATCH_0, 0, 0, 0, 0 },
149 { CMD_WRITE, mmBIOS_SCRATCH_1, 0, 0, 0, 0 },
150 { CMD_WRITE, mmBIOS_SCRATCH_2, 0, 0, 0, 0 },
151 { CMD_WRITE, mmBIOS_SCRATCH_3, 0, 0, 0, 0 },
152 { CMD_WRITE, mmBIOS_SCRATCH_4, 0, 0, 0, 0 },
153 { CMD_WRITE, mmBIOS_SCRATCH_5, 0, 0, 0, 0 },
154 { CMD_WRITE, mmBIOS_SCRATCH_6, 0, 0, 0, 0 },
155 { CMD_WRITE, mmBIOS_SCRATCH_7, 0, 0, 0, 0 },
156 { CMD_WRITE, mmBIOS_SCRATCH_8, 0, 0, 0, 0 },
157 { CMD_WRITE, mmBIOS_SCRATCH_9, 0, 0, 0, 0 },
158 { CMD_WRITE, mmBIOS_SCRATCH_10, 0, 0, 0, 0 },
159 { CMD_WRITE, mmBIOS_SCRATCH_11, 0, 0, 0, 0 },
160 { CMD_WRITE, mmBIOS_SCRATCH_12, 0, 0, 0, 0 },
161 { CMD_WRITE, mmBIOS_SCRATCH_13, 0, 0, 0, 0 },
162 { CMD_WRITE, mmBIOS_SCRATCH_14, 0, 0, 0, 0 },
163 { CMD_WRITE, mmBIOS_SCRATCH_15, 0, 0, 0, 0 }
164 };
165
fiji_baco_set_state(struct pp_hwmgr * hwmgr,enum BACO_STATE state)166 int fiji_baco_set_state(struct pp_hwmgr *hwmgr, enum BACO_STATE state)
167 {
168 enum BACO_STATE cur_state;
169
170 smu7_baco_get_state(hwmgr, &cur_state);
171
172 if (cur_state == state)
173 /* aisc already in the target state */
174 return 0;
175
176 if (state == BACO_STATE_IN) {
177 baco_program_registers(hwmgr, gpio_tbl, ARRAY_SIZE(gpio_tbl));
178 baco_program_registers(hwmgr, enable_fb_req_rej_tbl,
179 ARRAY_SIZE(enable_fb_req_rej_tbl));
180 baco_program_registers(hwmgr, use_bclk_tbl, ARRAY_SIZE(use_bclk_tbl));
181 baco_program_registers(hwmgr, turn_off_plls_tbl,
182 ARRAY_SIZE(turn_off_plls_tbl));
183 baco_program_registers(hwmgr, clk_req_b_tbl, ARRAY_SIZE(clk_req_b_tbl));
184 if (baco_program_registers(hwmgr, enter_baco_tbl,
185 ARRAY_SIZE(enter_baco_tbl)))
186 return 0;
187
188 } else if (state == BACO_STATE_OUT) {
189 /* HW requires at least 20ms between regulator off and on */
190 msleep(20);
191 /* Execute Hardware BACO exit sequence */
192 if (baco_program_registers(hwmgr, exit_baco_tbl,
193 ARRAY_SIZE(exit_baco_tbl))) {
194 if (baco_program_registers(hwmgr, clean_baco_tbl,
195 ARRAY_SIZE(clean_baco_tbl)))
196 return 0;
197 }
198 }
199
200 return -EINVAL;
201 }
202