| 1 | // SPDX-License-Identifier: GPL-2.0-only |
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| 2 | /* |
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| 3 | * Copyright 2022, Athira Rajeev, IBM Corp. |
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| 4 | */ |
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| 5 | |
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| 6 | #include <stdio.h> |
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| 7 | #include "../event.h" |
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| 8 | #include "../sampling_tests/misc.h" |
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| 9 | |
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| 10 | /* |
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| 11 | * Testcase for reserved bits in Monitor Mode |
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| 12 | * Control Register A (MMCRA) thresh_ctl bits. |
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| 13 | * For MMCRA[48:51]/[52:55]) Threshold Start/Stop, |
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| 14 | * 0b11110000/0b00001111 is reserved. |
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| 15 | */ |
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| 16 | |
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| 17 | static int reserved_bits_mmcra_thresh_ctl(void) |
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| 18 | { |
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| 19 | struct event event; |
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| 20 | |
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| 21 | /* Check for platform support for the test */ |
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| 22 | SKIP_IF(platform_check_for_tests()); |
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| 23 | |
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| 24 | /* Skip for Generic compat PMU */ |
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| 25 | SKIP_IF(check_for_generic_compat_pmu()); |
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| 26 | |
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| 27 | /* |
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| 28 | * MMCRA[48:51]/[52:55]) Threshold Start/Stop |
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| 29 | * events Selection. 0b11110000/0b00001111 is reserved. |
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| 30 | * Expected to fail when using these reserved values. |
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| 31 | */ |
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| 32 | event_init(e: &event, config: 0xf0340401e0); |
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| 33 | FAIL_IF(!event_open(e: &event)); |
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| 34 | |
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| 35 | event_init(e: &event, config: 0x0f340401e0); |
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| 36 | FAIL_IF(!event_open(e: &event)); |
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| 37 | |
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| 38 | return 0; |
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| 39 | } |
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| 40 | |
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| 41 | int main(void) |
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| 42 | { |
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| 43 | return test_harness(reserved_bits_mmcra_thresh_ctl, "reserved_bits_mmcra_thresh_ctl" ); |
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| 44 | } |
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| 45 | |
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