da650ada10
Also based on the RFI and entry flush tests, it counts the L1D misses by doing a syscall that does user access: uname, in this case. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com> [dja: forward port, rename function] Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210225061949.1213404-1-dja@axtens.net
25 lines
638 B
C
25 lines
638 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright 2018 IBM Corporation.
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*/
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#ifndef _SELFTESTS_POWERPC_SECURITY_FLUSH_UTILS_H
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#define _SELFTESTS_POWERPC_SECURITY_FLUSH_UTILS_H
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#define CACHELINE_SIZE 128
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#define PERF_L1D_READ_MISS_CONFIG ((PERF_COUNT_HW_CACHE_L1D) | \
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(PERF_COUNT_HW_CACHE_OP_READ << 8) | \
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(PERF_COUNT_HW_CACHE_RESULT_MISS << 16))
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void syscall_loop(char *p, unsigned long iterations,
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unsigned long zero_size);
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void syscall_loop_uaccess(char *p, unsigned long iterations,
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unsigned long zero_size);
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void set_dscr(unsigned long val);
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#endif /* _SELFTESTS_POWERPC_SECURITY_FLUSH_UTILS_H */
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