| /* |
| * Copyright (c) 2023, MediaTek Inc. All rights reserved. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| #include <common/debug.h> |
| #include <drivers/spm/mt_spm_resource_req.h> |
| #include <lib/pm/mtk_pm.h> |
| #include <lpm/mt_lpm_smc.h> |
| #include <mt_spm.h> |
| #include <mt_spm_cond.h> |
| #include <mt_spm_conservation.h> |
| #include <mt_spm_constraint.h> |
| #include <mt_spm_idle.h> |
| #include <mt_spm_internal.h> |
| #include <mt_spm_notifier.h> |
| #include "mt_spm_rc_api.h" |
| #include "mt_spm_rc_internal.h" |
| #include <mt_spm_reg.h> |
| #include <mt_spm_suspend.h> |
| |
| #define CONSTRAINT_CPU_BUCK_PCM_FLAG (SPM_FLAG_DISABLE_INFRA_PDN | \ |
| SPM_FLAG_DISABLE_VCORE_DVS | \ |
| SPM_FLAG_DISABLE_VCORE_DFS | \ |
| SPM_FLAG_SRAM_SLEEP_CTRL | \ |
| SPM_FLAG_DISABLE_DRAMC_MCU_SRAM_SLEEP | \ |
| SPM_FLAG_KEEP_CSYSPWRACK_HIGH) |
| |
| #define CONSTRAINT_CPU_BUCK_PCM_FLAG1 (0) |
| |
| #define CONSTRAINT_CPU_BUCK_RESOURCE_REQ (MT_SPM_DRAM_S1 | \ |
| MT_SPM_DRAM_S0 | \ |
| MT_SPM_SYSPLL | \ |
| MT_SPM_INFRA | \ |
| MT_SPM_26M | \ |
| MT_SPM_XO_FPM) |
| |
| static unsigned int cpubuckldo_status = (MT_SPM_RC_VALID_SW | MT_SPM_RC_VALID_TRACE_TIME); |
| static unsigned int cpubuckldo_enter_cnt; |
| |
| int spm_cpu_bcuk_ldo_conduct(int state_id, |
| struct spm_lp_scen *spm_lp, |
| unsigned int *resource_req) |
| { |
| unsigned int res_req = CONSTRAINT_CPU_BUCK_RESOURCE_REQ; |
| |
| if ((spm_lp == NULL) || (resource_req == NULL)) { |
| return -1; |
| } |
| |
| spm_lp->pwrctrl->pcm_flags = (uint32_t)CONSTRAINT_CPU_BUCK_PCM_FLAG; |
| spm_lp->pwrctrl->pcm_flags1 = (uint32_t)CONSTRAINT_CPU_BUCK_PCM_FLAG1; |
| |
| *resource_req |= res_req; |
| return 0; |
| } |
| |
| bool spm_is_valid_rc_cpu_buck_ldo(unsigned int cpu, int state_id) |
| { |
| return IS_MT_RM_RC_READY(cpubuckldo_status); |
| } |
| |
| static void update_rc_status(const void *val) |
| { |
| const struct rc_common_state *st = (const struct rc_common_state *)val; |
| |
| if (st == NULL) { |
| return; |
| } |
| |
| if ((st->type == CONSTRAINT_UPDATE_VALID) && st->value) { |
| if ((st->id == MT_RM_CONSTRAINT_ID_ALL) || |
| (st->id == MT_RM_CONSTRAINT_ID_CPU_BUCK_LDO)) { |
| struct constraint_status *con = (struct constraint_status *)st->value; |
| |
| if ((st->act & MT_LPM_SMC_ACT_CLR) > 0U) { |
| SPM_RC_BITS_CLR(cpubuckldo_status, con->is_valid); |
| } else { |
| SPM_RC_BITS_SET(cpubuckldo_status, con->is_valid); |
| } |
| } |
| } |
| } |
| |
| int spm_update_rc_cpu_buck_ldo(int state_id, int type, const void *val) |
| { |
| if (type == PLAT_RC_STATUS) { |
| update_rc_status(val); |
| } |
| return MT_RM_STATUS_OK; |
| } |
| |
| unsigned int spm_allow_rc_cpu_buck_ldo(int state_id) |
| { |
| return MT_RM_CONSTRAINT_ALLOW_CPU_BUCK_OFF; |
| } |
| |
| int spm_run_rc_cpu_buck_ldo(unsigned int cpu, int state_id) |
| { |
| (void)cpu; |
| unsigned int ext_op = 0U; |
| |
| #ifndef MTK_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT |
| mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_ENTER, |
| (IS_PLAT_SUSPEND_ID(state_id) ? |
| MT_RM_CONSTRAINT_ALLOW_AP_SUSPEND : (0U))); |
| #endif |
| if (cpubuckldo_status & MT_SPM_RC_VALID_TRACE_TIME) { |
| ext_op |= MT_SPM_EX_OP_TRACE_TIMESTAMP_EN; |
| } |
| |
| if (IS_PLAT_SUSPEND_ID(state_id)) { |
| mt_spm_suspend_enter(state_id, |
| (MT_SPM_EX_OP_CLR_26M_RECORD | |
| MT_SPM_EX_OP_SET_SUSPEND_MODE | |
| MT_SPM_EX_OP_SET_WDT), |
| CONSTRAINT_CPU_BUCK_RESOURCE_REQ); |
| } else { |
| mt_spm_idle_generic_enter(state_id, ext_op, spm_cpu_bcuk_ldo_conduct); |
| } |
| |
| cpubuckldo_enter_cnt++; |
| |
| return 0; |
| } |
| |
| int spm_reset_rc_cpu_buck_ldo(unsigned int cpu, int state_id) |
| { |
| (void)cpu; |
| unsigned int ext_op = 0U; |
| |
| #ifndef MTK_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT |
| mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_LEAVE, 0U); |
| #endif |
| if (cpubuckldo_status & MT_SPM_RC_VALID_TRACE_TIME) { |
| ext_op |= MT_SPM_EX_OP_TRACE_TIMESTAMP_EN; |
| } |
| |
| if (IS_PLAT_SUSPEND_ID(state_id)) { |
| mt_spm_suspend_resume(state_id, MT_SPM_EX_OP_SET_WDT, NULL); |
| } else { |
| mt_spm_idle_generic_resume(state_id, ext_op, NULL, NULL); |
| } |
| |
| return 0; |
| } |
| |
| int spm_get_status_rc_cpu_buck_ldo(unsigned int type, void *priv) |
| { |
| int ret = MT_RM_STATUS_OK; |
| |
| if (type != PLAT_RC_STATUS) { |
| return ret; |
| } |
| |
| struct rc_common_state *st = (struct rc_common_state *)priv; |
| |
| if (st == NULL) { |
| return MT_RM_STATUS_BAD; |
| } |
| |
| if ((st->id == MT_RM_CONSTRAINT_ID_ALL) || |
| (st->id == MT_RM_CONSTRAINT_ID_CPU_BUCK_LDO)) { |
| struct constraint_status *dest; |
| |
| dest = (struct constraint_status *)st->value; |
| do { |
| if (dest == NULL) { |
| break; |
| } |
| if (st->type == CONSTRAINT_GET_VALID) { |
| dest->is_valid = cpubuckldo_status; |
| } else if (st->type == CONSTRAINT_COND_BLOCK) { |
| dest->is_cond_block = 0; |
| } else if (st->type == CONSTRAINT_GET_ENTER_CNT) { |
| if (st->id == MT_RM_CONSTRAINT_ID_ALL) { |
| dest->enter_cnt += cpubuckldo_enter_cnt; |
| } else { |
| dest->enter_cnt = cpubuckldo_enter_cnt; |
| } |
| } else { |
| break; |
| } |
| if (st->id != MT_RM_CONSTRAINT_ID_ALL) { |
| ret = MT_RM_STATUS_STOP; |
| } |
| } while (0); |
| } |
| return ret; |
| } |