| // SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later |
| /* Copyright 2016-2019 IBM Corp. */ |
| /* |
| * In-Memory Collection (IMC) Counters : |
| * Power9 has IMC instrumentation support with which several |
| * metrics of the platform can be monitored. These metrics |
| * are backed by the Performance Monitoring Units (PMUs) and |
| * their counters. IMC counters can be configured to run |
| * continuously from startup to shutdown and data from these |
| * counters are fed directly into a pre-defined memory location. |
| * |
| * Depending on the counters' location and monitoring engines, |
| * they are classified into three domains : |
| * Nest IMC, core IMC and thread IMC. |
| * |
| * Nest Counters : |
| * Nest counters are per-chip counters and can help in providing utilisation |
| * metrics like memory bandwidth, Xlink/Alink bandwidth etc. |
| * A microcode in OCC programs the nest counters and moves counter values to |
| * per chip HOMER region in a fixed offset for each unit. Engine has a |
| * control block structure for communication with Hypervisor(Host OS). |
| */ |
| |
| #ifndef __IMC_H |
| #define __IMC_H |
| |
| /* |
| * Control Block structure offset in HOMER nest Region |
| */ |
| #define P9_CB_STRUCT_OFFSET 0x1BFC00 |
| #define P9_CB_STRUCT_CMD 0x1BFC08 |
| #define P9_CB_STRUCT_SPEED 0x1BFC10 |
| |
| /* Nest microcode Status */ |
| #define NEST_IMC_PAUSE 0x2 |
| #define NEST_IMC_RUNNING 0x1 |
| #define NEST_IMC_NOP 0 |
| |
| /* |
| * Control Block Structure: |
| * |
| * Name Producer Consumer Values Desc |
| * IMCRunStatus IMC Code Hypervisor 0 Initializing |
| * (Host OS) 1 Running |
| * 2 Paused |
| * |
| * IMCCommand Hypervisor IMC Code 0 NOP |
| * 1 Resume |
| * 2 Pause |
| * 3 Clear and Restart |
| * |
| * IMCCollection Hypervisor IMC Code 0 128us |
| * Speed 1 256us |
| * 2 1ms |
| * 3 4ms |
| * 4 16ms |
| * 5 64ms |
| * 6 256ms |
| * 7 1000ms |
| * |
| * IMCAvailability IMC Code Hypervisor - 64-bit value describes |
| * the Vector Nest PMU |
| * availability. |
| * Bits 0-47 denote the |
| * availability of 48 different |
| * nest units. |
| * Rest are reserved. For details |
| * regarding which bit belongs |
| * to which unit, see |
| * include/nest_imc.h. |
| * If a bit is unset (0), |
| * then, the corresponding unit |
| * is unavailable. If its set (1), |
| * then, the unit is available. |
| * |
| * IMCRun Mode Hypervisor IMC Code 0 Normal Mode (Monitor Mode) |
| * 1 Debug Mode 1 (PB) |
| * 2 Debug Mode 2 (MEM) |
| * 3 Debug Mode 3 (PCIE) |
| * 4 Debug Mode 4 (CAPP) |
| * 5 Debug Mode 5 (NPU 1) |
| * 6 Debug Mode 6 (NPU 2) |
| */ |
| struct imc_chip_cb |
| { |
| be64 imc_chip_run_status; |
| be64 imc_chip_command; |
| be64 imc_chip_collection_speed; |
| be64 imc_chip_avl_vector; |
| be64 imc_chip_run_mode; |
| } __packed; |
| |
| /* Size of IMC dtb LID (256KBytes) */ |
| #define MAX_DECOMPRESSED_IMC_DTB_SIZE 0x40000 |
| #define MAX_COMPRESSED_IMC_DTB_SIZE 0x40000 |
| |
| /* IMC device types */ |
| #define IMC_COUNTER_CHIP 0x10 |
| #define IMC_COUNTER_CORE 0x4 |
| #define IMC_COUNTER_THREAD 0x1 |
| #define IMC_COUNTER_TRACE 0x2 |
| |
| /* |
| * Nest IMC operations |
| */ |
| #define NEST_IMC_ENABLE 0x1 |
| #define NEST_IMC_DISABLE 0x2 |
| |
| /* |
| * Core IMC SCOMs |
| */ |
| #define CORE_IMC_EVENT_MASK_ADDR 0x20010AA8ull |
| #define CORE_IMC_EVENT_MASK 0x0402010000000000ull |
| #define CORE_IMC_PDBAR_MASK 0x0003ffffffffe000ull |
| #define CORE_IMC_HTM_MODE_ENABLE 0xE800000000000000ull |
| #define CORE_IMC_HTM_MODE_DISABLE 0xE000000000000000ull |
| |
| /* |
| * Trace IMC SCOMs for IMC trace-mode. |
| * |
| * TRACE_IMC_SCOM layout |
| * |
| * 0 4 8 12 16 20 24 28 |
| * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | |
| * [ ] [ CPMC_LOAD [2:33] |
| * | |
| * *SAMPSEL |
| * |
| * 32 36 40 44 48 52 56 60 |
| * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | |
| * ] [ ] [ ] [ ] [ RESERVED [51:63] ] |
| * | | | |
| * *CPMC1SEL *CPMC2SEL *BUFFERSIZE |
| */ |
| #define TRACE_IMC_ADDR 0x20010AA9ull |
| #define TRACE_IMC_SAMPLESEL(x) ((uint64_t)x << 62) |
| #define TRACE_IMC_CPMC_LOAD(x) ((0xffffffff - (uint64_t)x) << 30) |
| #define TRACE_IMC_CPMC1SEL(x) ((uint64_t)x << 23) |
| #define TRACE_IMC_CPMC2SEL(x) ((uint64_t)x << 16) |
| #define TRACE_IMC_BUFFERSIZE(x) ((uint64_t)x << 13) |
| #define TRACE_IMC_SCOM(a, b, c, d, e) (TRACE_IMC_SAMPLESEL(a) |\ |
| TRACE_IMC_CPMC_LOAD(b) |\ |
| TRACE_IMC_CPMC1SEL(c) |\ |
| TRACE_IMC_CPMC2SEL(d) |\ |
| TRACE_IMC_BUFFERSIZE(e)) |
| |
| void imc_init(void); |
| void imc_catalog_preload(void); |
| void imc_decompress_catalog(void); |
| |
| #define MAX_NEST_COMBINED_UNITS 4 |
| struct combined_units_node { |
| const char *name; |
| u64 unit1; |
| u64 unit2; |
| }; |
| #endif /* __IMC_H */ |
