developer | 451d49d | 2022-11-16 21:52:21 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2023, MediaTek Inc. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <common/debug.h> |
| 8 | #include <drivers/spm/mt_spm_resource_req.h> |
| 9 | #include <lib/pm/mtk_pm.h> |
| 10 | #include <lpm/mt_lpm_smc.h> |
| 11 | #include <mt_spm.h> |
| 12 | #include <mt_spm_cond.h> |
| 13 | #include <mt_spm_conservation.h> |
| 14 | #include <mt_spm_constraint.h> |
| 15 | #include <mt_spm_idle.h> |
| 16 | #include <mt_spm_internal.h> |
| 17 | #include <mt_spm_notifier.h> |
| 18 | #include "mt_spm_rc_api.h" |
| 19 | #include "mt_spm_rc_internal.h" |
| 20 | #include <mt_spm_reg.h> |
| 21 | #include <mt_spm_suspend.h> |
| 22 | |
| 23 | #define CONSTRAINT_CPU_BUCK_PCM_FLAG (SPM_FLAG_DISABLE_INFRA_PDN | \ |
| 24 | SPM_FLAG_DISABLE_VCORE_DVS | \ |
| 25 | SPM_FLAG_DISABLE_VCORE_DFS | \ |
| 26 | SPM_FLAG_SRAM_SLEEP_CTRL | \ |
| 27 | SPM_FLAG_DISABLE_DRAMC_MCU_SRAM_SLEEP | \ |
| 28 | SPM_FLAG_KEEP_CSYSPWRACK_HIGH) |
| 29 | |
| 30 | #define CONSTRAINT_CPU_BUCK_PCM_FLAG1 (0) |
| 31 | |
| 32 | #define CONSTRAINT_CPU_BUCK_RESOURCE_REQ (MT_SPM_DRAM_S1 | \ |
| 33 | MT_SPM_DRAM_S0 | \ |
| 34 | MT_SPM_SYSPLL | \ |
| 35 | MT_SPM_INFRA | \ |
| 36 | MT_SPM_26M | \ |
| 37 | MT_SPM_XO_FPM) |
| 38 | |
| 39 | static unsigned int cpubuckldo_status = (MT_SPM_RC_VALID_SW | MT_SPM_RC_VALID_TRACE_TIME); |
| 40 | static unsigned int cpubuckldo_enter_cnt; |
| 41 | |
| 42 | int spm_cpu_bcuk_ldo_conduct(int state_id, |
| 43 | struct spm_lp_scen *spm_lp, |
| 44 | unsigned int *resource_req) |
| 45 | { |
| 46 | unsigned int res_req = CONSTRAINT_CPU_BUCK_RESOURCE_REQ; |
| 47 | |
| 48 | if ((spm_lp == NULL) || (resource_req == NULL)) { |
| 49 | return -1; |
| 50 | } |
| 51 | |
| 52 | spm_lp->pwrctrl->pcm_flags = (uint32_t)CONSTRAINT_CPU_BUCK_PCM_FLAG; |
| 53 | spm_lp->pwrctrl->pcm_flags1 = (uint32_t)CONSTRAINT_CPU_BUCK_PCM_FLAG1; |
| 54 | |
| 55 | *resource_req |= res_req; |
| 56 | return 0; |
| 57 | } |
| 58 | |
| 59 | bool spm_is_valid_rc_cpu_buck_ldo(unsigned int cpu, int state_id) |
| 60 | { |
| 61 | return IS_MT_RM_RC_READY(cpubuckldo_status); |
| 62 | } |
| 63 | |
| 64 | static void update_rc_status(const void *val) |
| 65 | { |
| 66 | const struct rc_common_state *st = (const struct rc_common_state *)val; |
| 67 | |
| 68 | if (st == NULL) { |
| 69 | return; |
| 70 | } |
| 71 | |
| 72 | if ((st->type == CONSTRAINT_UPDATE_VALID) && st->value) { |
| 73 | if ((st->id == MT_RM_CONSTRAINT_ID_ALL) || |
| 74 | (st->id == MT_RM_CONSTRAINT_ID_CPU_BUCK_LDO)) { |
| 75 | struct constraint_status *con = (struct constraint_status *)st->value; |
| 76 | |
| 77 | if ((st->act & MT_LPM_SMC_ACT_CLR) > 0U) { |
| 78 | SPM_RC_BITS_CLR(cpubuckldo_status, con->is_valid); |
| 79 | } else { |
| 80 | SPM_RC_BITS_SET(cpubuckldo_status, con->is_valid); |
| 81 | } |
| 82 | } |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | int spm_update_rc_cpu_buck_ldo(int state_id, int type, const void *val) |
| 87 | { |
| 88 | if (type == PLAT_RC_STATUS) { |
| 89 | update_rc_status(val); |
| 90 | } |
| 91 | return MT_RM_STATUS_OK; |
| 92 | } |
| 93 | |
| 94 | unsigned int spm_allow_rc_cpu_buck_ldo(int state_id) |
| 95 | { |
| 96 | return MT_RM_CONSTRAINT_ALLOW_CPU_BUCK_OFF; |
| 97 | } |
| 98 | |
| 99 | int spm_run_rc_cpu_buck_ldo(unsigned int cpu, int state_id) |
| 100 | { |
| 101 | (void)cpu; |
| 102 | unsigned int ext_op = 0U; |
| 103 | |
| 104 | #ifndef MTK_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT |
| 105 | mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_ENTER, |
| 106 | (IS_PLAT_SUSPEND_ID(state_id) ? |
| 107 | MT_RM_CONSTRAINT_ALLOW_AP_SUSPEND : (0U))); |
| 108 | #endif |
| 109 | if (cpubuckldo_status & MT_SPM_RC_VALID_TRACE_TIME) { |
| 110 | ext_op |= MT_SPM_EX_OP_TRACE_TIMESTAMP_EN; |
| 111 | } |
| 112 | |
| 113 | if (IS_PLAT_SUSPEND_ID(state_id)) { |
| 114 | mt_spm_suspend_enter(state_id, |
| 115 | (MT_SPM_EX_OP_CLR_26M_RECORD | |
| 116 | MT_SPM_EX_OP_SET_SUSPEND_MODE | |
| 117 | MT_SPM_EX_OP_SET_WDT), |
| 118 | CONSTRAINT_CPU_BUCK_RESOURCE_REQ); |
| 119 | } else { |
| 120 | mt_spm_idle_generic_enter(state_id, ext_op, spm_cpu_bcuk_ldo_conduct); |
| 121 | } |
| 122 | |
| 123 | cpubuckldo_enter_cnt++; |
| 124 | |
| 125 | return 0; |
| 126 | } |
| 127 | |
| 128 | int spm_reset_rc_cpu_buck_ldo(unsigned int cpu, int state_id) |
| 129 | { |
| 130 | (void)cpu; |
| 131 | unsigned int ext_op = 0U; |
| 132 | |
| 133 | #ifndef MTK_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT |
| 134 | mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_LEAVE, 0U); |
| 135 | #endif |
| 136 | if (cpubuckldo_status & MT_SPM_RC_VALID_TRACE_TIME) { |
| 137 | ext_op |= MT_SPM_EX_OP_TRACE_TIMESTAMP_EN; |
| 138 | } |
| 139 | |
| 140 | if (IS_PLAT_SUSPEND_ID(state_id)) { |
| 141 | mt_spm_suspend_resume(state_id, MT_SPM_EX_OP_SET_WDT, NULL); |
| 142 | } else { |
| 143 | mt_spm_idle_generic_resume(state_id, ext_op, NULL, NULL); |
| 144 | } |
| 145 | |
| 146 | return 0; |
| 147 | } |
| 148 | |
| 149 | int spm_get_status_rc_cpu_buck_ldo(unsigned int type, void *priv) |
| 150 | { |
| 151 | int ret = MT_RM_STATUS_OK; |
| 152 | |
| 153 | if (type != PLAT_RC_STATUS) { |
| 154 | return ret; |
| 155 | } |
| 156 | |
| 157 | struct rc_common_state *st = (struct rc_common_state *)priv; |
| 158 | |
| 159 | if (st == NULL) { |
| 160 | return MT_RM_STATUS_BAD; |
| 161 | } |
| 162 | |
| 163 | if ((st->id == MT_RM_CONSTRAINT_ID_ALL) || |
| 164 | (st->id == MT_RM_CONSTRAINT_ID_CPU_BUCK_LDO)) { |
| 165 | struct constraint_status *dest; |
| 166 | |
| 167 | dest = (struct constraint_status *)st->value; |
| 168 | do { |
| 169 | if (dest == NULL) { |
| 170 | break; |
| 171 | } |
| 172 | if (st->type == CONSTRAINT_GET_VALID) { |
| 173 | dest->is_valid = cpubuckldo_status; |
| 174 | } else if (st->type == CONSTRAINT_COND_BLOCK) { |
| 175 | dest->is_cond_block = 0; |
| 176 | } else if (st->type == CONSTRAINT_GET_ENTER_CNT) { |
| 177 | if (st->id == MT_RM_CONSTRAINT_ID_ALL) { |
| 178 | dest->enter_cnt += cpubuckldo_enter_cnt; |
| 179 | } else { |
| 180 | dest->enter_cnt = cpubuckldo_enter_cnt; |
| 181 | } |
| 182 | } else { |
| 183 | break; |
| 184 | } |
| 185 | if (st->id != MT_RM_CONSTRAINT_ID_ALL) { |
| 186 | ret = MT_RM_STATUS_STOP; |
| 187 | } |
| 188 | } while (0); |
| 189 | } |
| 190 | return ret; |
| 191 | } |