/* Copyright 2017 IBM 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. */ #include /* OCC Functions */ extern void occ_pstates_init(void); extern void occ_fsp_init(void); /* OCC interrupt for P8 */ extern void occ_p8_interrupt(uint32_t chip_id); extern void occ_send_dummy_interrupt(void); /* OCC interrupt for P9 */ extern void occ_p9_interrupt(uint32_t chip_id); /* OCC load support */ extern void occ_poke_load_queue(void); /* OCC/Host PNOR ownership */ enum pnor_owner { PNOR_OWNER_HOST, PNOR_OWNER_EXTERNAL, }; extern void occ_pnor_set_owner(enum pnor_owner owner); /* GPU presence detection */ bool occ_get_gpu_presence(struct proc_chip *chip, int gpu_num); /* OCC Inband Sensors */ extern bool occ_sensors_init(void); extern int occ_sensor_read(u32 handle, u64 *data); extern int occ_sensor_group_clear(u32 group_hndl, int token); extern void occ_add_sensor_groups(struct dt_node *sg, u32 *phandles, u32 *ptype, int nr_phandles, int chipid); extern int occ_sensor_group_enable(u32 group_hndl, int token, bool enable); /* * OCC Sensor Data * * OCC sensor data will use BAR2 (OCC Common is per physical drawer). * Starting address is at offset 0x00580000 from BAR2 base address. * Maximum size is 1.5MB. * * ------------------------------------------------------------------------- * | Start (Offset from | End | Size |Description | * | BAR2 base address) | | | | * ------------------------------------------------------------------------- * | 0x00580000 | 0x005A57FF |150kB |OCC 0 Sensor Data Block| * | 0x005A5800 | 0x005CAFFF |150kB |OCC 1 Sensor Data Block| * | : | : | : | : | * | 0x00686800 | 0x006ABFFF |150kB |OCC 7 Sensor Data Block| * | 0x006AC000 | 0x006FFFFF |336kB |Reserved | * ------------------------------------------------------------------------- * * * OCC N Sensor Data Block Layout (150kB) * * The sensor data block layout is the same for each OCC N. It contains * sensor-header-block, sensor-names buffer, sensor-readings-ping buffer and * sensor-readings-pong buffer. * * ---------------------------------------------------------------------------- * | Start (Offset from OCC | End | Size |Description | * | N Sensor Data Block) | | | | * ---------------------------------------------------------------------------- * | 0x00000000 | 0x000003FF |1kB |Sensor Data Header Block | * | 0x00000400 | 0x0000CBFF |50kB |Sensor Names | * | 0x0000CC00 | 0x0000DBFF |4kB |Reserved | * | 0x0000DC00 | 0x00017BFF |40kB |Sensor Readings ping buffer| * | 0x00017C00 | 0x00018BFF |4kB |Reserved | * | 0x00018C00 | 0x00022BFF |40kB |Sensor Readings pong buffer| * | 0x00022C00 | 0x000257FF |11kB |Reserved | * ---------------------------------------------------------------------------- * * Sensor Data Header Block : This is written once by the OCC during * initialization after a load or reset. Layout is defined in 'struct * occ_sensor_data_header' * * Sensor Names : This is written once by the OCC during initialization after a * load or reset. It contains static information for each sensor. The number of * sensors, format version and length of each sensor is defined in * 'Sensor Data Header Block'. Format of each sensor name is defined in * 'struct occ_sensor_name'. The first sensor starts at offset 0 followed * immediately by the next sensor. * * Sensor Readings Ping/Pong Buffer: * There are two 40kB buffers to store the sensor readings. One buffer that * is currently being updated by the OCC and one that is available to be read. * Each of these buffers will be of the same format. The number of sensors and * the format version of the ping and pong buffers is defined in the * 'Sensor Data Header Block'. * * Each sensor within the ping and pong buffers may be of a different format * and length. For each sensor the length and format is determined by its * 'struct occ_sensor_name.structure_type' in the Sensor Names buffer. * * -------------------------------------------------------------------------- * | Offset | Byte0 | Byte1 | Byte2 | Byte3 | Byte4 | Byte5 | Byte6 | Byte7 | * -------------------------------------------------------------------------- * | 0x0000 |Valid | Reserved | * | |(0x01) | | * -------------------------------------------------------------------------- * | 0x0008 | Sensor Readings | * -------------------------------------------------------------------------- * | : | : | * -------------------------------------------------------------------------- * | 0xA000 | End of Data | * -------------------------------------------------------------------------- * */ #define MAX_OCCS 8 #define MAX_CHARS_SENSOR_NAME 16 #define MAX_CHARS_SENSOR_UNIT 4 #define OCC_SENSOR_DATA_BLOCK_OFFSET 0x00580000 #define OCC_SENSOR_DATA_BLOCK_SIZE 0x00025800 /* * These should match the definitions inside the OCC source: * occ/src/occ_405/sensor/sensor_info.c */ enum occ_sensor_type { OCC_SENSOR_TYPE_GENERIC = 0x0001, OCC_SENSOR_TYPE_CURRENT = 0x0002, OCC_SENSOR_TYPE_VOLTAGE = 0x0004, OCC_SENSOR_TYPE_TEMPERATURE = 0x0008, OCC_SENSOR_TYPE_UTILIZATION = 0x0010, OCC_SENSOR_TYPE_TIME = 0x0020, OCC_SENSOR_TYPE_FREQUENCY = 0x0040, OCC_SENSOR_TYPE_POWER = 0x0080, OCC_SENSOR_TYPE_PERFORMANCE = 0x0200, }; #define OCC_ENABLED_SENSOR_MASK (OCC_SENSOR_TYPE_GENERIC | \ OCC_SENSOR_TYPE_CURRENT | \ OCC_SENSOR_TYPE_VOLTAGE | \ OCC_SENSOR_TYPE_TIME | \ OCC_SENSOR_TYPE_TEMPERATURE | \ OCC_SENSOR_TYPE_POWER | \ OCC_SENSOR_TYPE_UTILIZATION | \ OCC_SENSOR_TYPE_FREQUENCY | \ OCC_SENSOR_TYPE_PERFORMANCE); enum occ_sensor_location { OCC_SENSOR_LOC_SYSTEM = 0x0001, OCC_SENSOR_LOC_PROCESSOR = 0x0002, OCC_SENSOR_LOC_PARTITION = 0x0004, OCC_SENSOR_LOC_MEMORY = 0x0008, OCC_SENSOR_LOC_VRM = 0x0010, OCC_SENSOR_LOC_OCC = 0x0020, OCC_SENSOR_LOC_CORE = 0x0040, OCC_SENSOR_LOC_GPU = 0x0080, OCC_SENSOR_LOC_QUAD = 0x0100, }; enum sensor_struct_type { OCC_SENSOR_READING_FULL = 0x01, OCC_SENSOR_READING_COUNTER = 0x02, }; /** * struct occ_sensor_data_header - Sensor Data Header Block * @valid: When the value is 0x01 it indicates * that this header block and the sensor * names buffer are ready * @version: Format version of this block * @nr_sensors: Number of sensors in names, ping and * pong buffer * @reading_version: Format version of the Ping/Pong buffer * @names_offset: Offset to the location of names buffer * @names_version: Format version of names buffer * @names_length: Length of each sensor in names buffer * @reading_ping_offset: Offset to the location of Ping buffer * @reading_pong_offset: Offset to the location of Pong buffer * @pad/reserved: Unused data */ struct occ_sensor_data_header { u8 valid; u8 version; u16 nr_sensors; u8 reading_version; u8 pad[3]; u32 names_offset; u8 names_version; u8 name_length; u16 reserved; u32 reading_ping_offset; u32 reading_pong_offset; } __attribute__((__packed__)); /** * struct occ_sensor_name - Format of Sensor Name * @name: Sensor name * @units: Sensor units of measurement * @gsid: Global sensor id (OCC) * @freq: Update frequency * @scale_factor: Scaling factor * @type: Sensor type as defined in * 'enum occ_sensor_type' * @location: Sensor location as defined in * 'enum occ_sensor_location' * @structure_type: Indicates type of data structure used * for the sensor readings in the ping and * pong buffers for this sensor as defined * in 'enum sensor_struct_type' * @reading_offset: Offset from the start of the ping/pong * reading buffers for this sensor * @sensor_data: Sensor specific info * @pad: Padding to fit the size of 48 bytes. */ struct occ_sensor_name { char name[MAX_CHARS_SENSOR_NAME]; char units[MAX_CHARS_SENSOR_UNIT]; u16 gsid; u32 freq; u32 scale_factor; u16 type; u16 location; u8 structure_type; u32 reading_offset; u8 sensor_data; u8 pad[8]; } __attribute__((__packed__)); /** * struct occ_sensor_record - Sensor Reading Full * @gsid: Global sensor id (OCC) * @timestamp: Time base counter value while updating * the sensor * @sample: Latest sample of this sensor * @sample_min: Minimum value since last OCC reset * @sample_max: Maximum value since last OCC reset * @csm_min: Minimum value since last reset request * by CSM (CORAL) * @csm_max: Maximum value since last reset request * by CSM (CORAL) * @profiler_min: Minimum value since last reset request * by profiler (CORAL) * @profiler_max: Maximum value since last reset request * by profiler (CORAL) * @job_scheduler_min: Minimum value since last reset request * by job scheduler(CORAL) * @job_scheduler_max: Maximum value since last reset request * by job scheduler (CORAL) * @accumulator: Accumulator for this sensor * @update_tag: Count of the number of ticks that have * passed between updates * @pad: Padding to fit the size of 48 bytes */ struct occ_sensor_record { u16 gsid; u64 timestamp; u16 sample; u16 sample_min; u16 sample_max; u16 csm_min; u16 csm_max; u16 profiler_min; u16 profiler_max; u16 job_scheduler_min; u16 job_scheduler_max; u64 accumulator; u32 update_tag; u8 pad[8]; } __attribute__((__packed__)); /** * struct occ_sensor_counter - Sensor Reading Counter * @gsid: Global sensor id (OCC) * @timestamp: Time base counter value while updating * the sensor * @accumulator: Accumulator/Counter * @sample: Latest sample of this sensor (0/1) * @pad: Padding to fit the size of 24 bytes */ struct occ_sensor_counter { u16 gsid; u64 timestamp; u64 accumulator; u8 sample; u8 pad[5]; } __attribute__((__packed__));