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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/occ_405/proc/proc_pstate.h $ */
/* */
/* OpenPOWER OnChipController Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2011,2018 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
#ifndef PROC_PSTATE_H
#define PROC_PSTATE_H
#include "ssx.h"
#include "cmdh_service_codes.h"
#include "errl.h"
#include "trac.h"
#include "rtls.h"
#include "occ_common.h"
#include "p9_pstates_common.h"
#include "state.h"
#include "cmdh_fsp_cmds.h"
#include "cmdh_dbug_cmd.h"
//#include "gpsm.h"
//#include "pstates.h"
// The pstate associated with highest possible frequency
// is always 0 in POWER9.
#define PMAX 0
typedef enum
{
PSTATES_IN_TRANSITION = -1,
PSTATES_DISABLED = 0,
PSTATES_ENABLED = 1,
PSTATES_FAILED = 2,
} pstateStatus;
typedef enum
{
OPAL_STATIC = 0,
OPAL_DYNAMIC = 1,
} opalDataType;
typedef struct __attribute__ ((packed))
{
uint8_t valid;
uint8_t version;
uint8_t occ_role;
uint8_t pmin;
uint8_t pnominal;
uint8_t pturbo;
uint8_t puturbo;
uint8_t reserved;
} opal_config_t;
typedef struct __attribute__ ((packed))
{
int8_t pstate;
uint8_t flag;
uint16_t reserved;
uint32_t freq_khz;
} opal_pstate_data_t;
typedef struct __attribute__ ((packed))
{
uint8_t occ_state;
uint8_t dynamic_major_version;
uint8_t dynamic_minor_version;
uint8_t gpus_present;
uint8_t reserved[1];
uint8_t proc_throt_status;
uint8_t mem_throt_status;
uint8_t quick_power_drop;
uint8_t power_shift_ratio;
uint8_t power_cap_type;
uint16_t min_power_cap;
uint16_t max_power_cap;
uint16_t current_power_cap;
uint16_t soft_min_power_cap;
} opal_dynamic_t;
// This size must be a multiple of 128
typedef struct __attribute__ ((packed))
{
opal_dynamic_t dynamic; // Dynamic OPAL parameters: 18B
uint8_t pad[110]; // Reserved dynamic space: 110B
} opal_dynamic_table_t __attribute__ ((aligned (128)));
#define PSTATE_ENTRIES 256 // number of generated PSTATES entries in OPAL table
#define DYNAMIC_MINOR_V_GPU_PRESENCE 1 // OPAL Dynamic minor version for GPU support
// This size must be a multiple of 128
typedef struct __attribute__ ((packed))
{
opal_config_t config; // Static OPAL config parameters: 8B
uint8_t reserved[16]; // Reserved static space: 16B
opal_pstate_data_t pstates[PSTATE_ENTRIES]; // Generated Pstates Table: 2048B
uint8_t max_pstate[24]; // Maximum Pstate with N active cores is max_pstate[N-1]: 24B
uint8_t pad[80]; // Padding in reserved static space: 80B
} opal_static_table_t __attribute__ ((aligned (128)));
extern uint32_t G_mhz_per_pstate;
// Per quad pstate
extern uint8_t G_desired_pstate[MAXIMUM_QUADS];
extern opal_dynamic_table_t G_opal_dynamic_table;
extern opal_static_table_t G_opal_static_table;
// States for updating opal data in main memory
typedef enum
{
OPAL_TABLE_UPDATE_IDLE = 0x00, // No dynmaic table update in process
OPAL_TABLE_UPDATE_DYNAMIC_COPY = 0x01, // BCE scheduled to copy dynamic date to main memory
OPAL_TABLE_UPDATE_NOTIFY_HOST = 0x02, // BCE copy finished notify host
OPAL_TABLE_UPDATE_BCE_FAIL = 0x03, // BCE failed, retry
OPAL_TABLE_UPDATE_CRITICAL_ERROR = 0x04, // Critical BCE error, stop trying to update dynamic data
} OPAL_TABLE_UPDATE_STATE;
extern volatile uint8_t G_opal_table_update_state;
// Helper function to translate from Frequency to nearest Pstate
Pstate proc_freq2pstate(uint32_t i_freq_mhz);
// Helper function to translate from Pstate to nearest Frequency
uint32_t proc_pstate2freq(Pstate i_pstate);
// Helper function to determine if we are in HW Pstate mode
inline bool proc_is_hwpstate_enabled(void);
// Copy pstate data to opal table
void populate_opal_dynamic_data(void);
// Copy all opal static data to opal table
void populate_opal_static_data(void);
// Copy pstates sections of opal static data to opal table
void populate_opal_static_pstates_data(void);
// Copy config section of opal static data to opal table
void populate_opal_static_config_data(void);
// Copy opal static/dynamic table to mainstore memory at OPAL_OFFSET_HOMER
void populate_opal_tbl_to_mem(opalDataType opal_data_type);
// Check if opal table needs update
void check_for_opal_updates(void);
// update dynamic opal data in SRAM & main memory
void update_dynamic_opal_data (void);
void proc_pstate_kvm_setup(void);
#endif
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