1 /* 2 * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef __MCE_H__ 8 #define __MCE_H__ 9 10 #include <mmio.h> 11 #include <tegra_def.h> 12 13 /******************************************************************************* 14 * MCE commands 15 ******************************************************************************/ 16 typedef enum mce_cmd { 17 MCE_CMD_ENTER_CSTATE = 0U, 18 MCE_CMD_UPDATE_CSTATE_INFO = 1U, 19 MCE_CMD_UPDATE_CROSSOVER_TIME = 2U, 20 MCE_CMD_READ_CSTATE_STATS = 3U, 21 MCE_CMD_WRITE_CSTATE_STATS = 4U, 22 MCE_CMD_IS_SC7_ALLOWED = 5U, 23 MCE_CMD_ONLINE_CORE = 6U, 24 MCE_CMD_CC3_CTRL = 7U, 25 MCE_CMD_ECHO_DATA = 8U, 26 MCE_CMD_READ_VERSIONS = 9U, 27 MCE_CMD_ENUM_FEATURES = 10U, 28 MCE_CMD_ROC_FLUSH_CACHE_TRBITS = 11U, 29 MCE_CMD_ENUM_READ_MCA = 12U, 30 MCE_CMD_ENUM_WRITE_MCA = 13U, 31 MCE_CMD_ROC_FLUSH_CACHE = 14U, 32 MCE_CMD_ROC_CLEAN_CACHE = 15U, 33 MCE_CMD_ENABLE_LATIC = 16U, 34 MCE_CMD_UNCORE_PERFMON_REQ = 17U, 35 MCE_CMD_MISC_CCPLEX = 18U, 36 MCE_CMD_IS_CCX_ALLOWED = 0xFEU, 37 MCE_CMD_MAX = 0xFFU, 38 } mce_cmd_t; 39 40 #define MCE_CMD_MASK 0xFFU 41 42 /******************************************************************************* 43 * Timeout value used to powerdown a core 44 ******************************************************************************/ 45 #define MCE_CORE_SLEEP_TIME_INFINITE 0xFFFFFFFFU 46 47 /******************************************************************************* 48 * Struct to prepare UPDATE_CSTATE_INFO request 49 ******************************************************************************/ 50 typedef struct mce_cstate_info { 51 /* cluster cstate value */ 52 uint32_t cluster; 53 /* ccplex cstate value */ 54 uint32_t ccplex; 55 /* system cstate value */ 56 uint32_t system; 57 /* force system state? */ 58 uint8_t system_state_force; 59 /* wake mask value */ 60 uint32_t wake_mask; 61 /* update the wake mask? */ 62 uint8_t update_wake_mask; 63 } mce_cstate_info_t; 64 65 /* public interfaces */ 66 int mce_command_handler(uint64_t cmd, uint64_t arg0, uint64_t arg1, 67 uint64_t arg2); 68 int mce_update_reset_vector(void); 69 int mce_update_gsc_videomem(void); 70 int mce_update_gsc_tzdram(void); 71 int mce_update_gsc_tzram(void); 72 __dead2 void mce_enter_ccplex_state(uint32_t state_idx); 73 void mce_update_cstate_info(const mce_cstate_info_t *cstate); 74 void mce_verify_firmware_version(void); 75 76 #endif /* __MCE_H__ */ 77
