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53ca89f8ae
* Add a file containing useful macro definitions, currently a single top-level macro for obtaining the size of an array; use it to replace a sizeof(x) / sizeof(x[0]) construct in system/smbus.c . This requires switching the GCC build mode from C11 to C11 with GCC extensions. * Initial NUMA awareness (#12) support: parse the ACPI SRAT to build up new internal structures related to proximity domains and affinity; use these structures in setup_vm_map() and calculate_chunk() to skip the work on the processors which don't belong to the proximity domain currently being tested. Tested on a number of 1S single-domain, 2S multi-domain and 4S multi-domain platforms. SKIP_RANGE(iterations) trick by Martin Whitaker.
136 lines
2.8 KiB
C
136 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#ifndef TEST_H
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#define TEST_H
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/**
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* \file
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*
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* Provides types and variables used when performing the memory tests.
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*
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*//*
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* Copyright (C) 2020-2022 Martin Whitaker.
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include "pmem.h"
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#include "smp.h"
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#include "barrier.h"
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#include "spinlock.h"
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/**
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* A mapping from a CPU core number to the index number of the memory chunk
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* it operates on when performing a memory test in parallel across all the
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* enabled cores (in the current proximity domain, when NUMA awareness is
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* enabled).
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*/
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extern uint8_t chunk_index[MAX_CPUS];
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/**
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* An array where the count of used CPUs in the current proximity domain.
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*/
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extern uint8_t used_cpus_in_proximity_domain[MAX_PROXIMITY_DOMAINS];
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/*
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* The number of CPU cores being used for the current test. This is always
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* either 1 or the full number of enabled CPU cores.
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*/
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extern int num_active_cpus;
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/**
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* The current master CPU core.
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*/
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extern int master_cpu;
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/**
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* A barrier used when running tests.
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*/
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extern barrier_t *run_barrier;
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/**
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* A mutex used when reporting errors or printing trace information.
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*/
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extern spinlock_t *error_mutex;
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#ifdef __x86_64__
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/**
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* The word width (in bits) used for memory testing.
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*/
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#define TESTWORD_WIDTH 64
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/**
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* The number of hex digits needed to display a memory test word.
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*/
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#define TESTWORD_DIGITS 16
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/**
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* The string representation of TESTWORDS_DIGITS
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*/
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#define TESTWORD_DIGITS_STR "16"
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#else
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/**
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* The word width (in bits) used for memory testing.
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*/
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#define TESTWORD_WIDTH 32
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/**
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* The number of hex digits needed to display a memory test word.
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*/
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#define TESTWORD_DIGITS 8
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/**
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* The string representation of TESTWORDS_DIGITS
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*/
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#define TESTWORD_DIGITS_STR "8"
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#endif
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/**
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* The word type used for memory testing.
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*/
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typedef uintptr_t testword_t;
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/**
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* A virtual memory segment descriptor.
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*/
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typedef struct {
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uintptr_t pm_base_addr;
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testword_t *start;
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testword_t *end;
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uint32_t proximity_domain_idx;
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} vm_map_t;
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/**
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* The list of memory segments currently mapped into virtual memory.
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*/
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extern vm_map_t vm_map[MAX_MEM_SEGMENTS];
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/**
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* The number of memory segments currently mapped into virtual memory.
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*/
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extern int vm_map_size;
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/**
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* The number of completed test passes.
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*/
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extern int pass_num;
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/**
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* The current test number.
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*/
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extern int test_num;
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/**
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* The current window number.
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*/
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extern int window_num;
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/**
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* A flag indicating that testing should be restarted due to a configuration
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* change.
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*/
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extern bool restart;
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/**
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* A flag indicating that the current test should be aborted.
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*/
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extern bool bail;
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/**
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* The base address of the block of memory currently being tested.
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*/
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extern uintptr_t test_addr[MAX_CPUS];
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#endif // TEST_H
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