| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright 2022, Athira Rajeev, IBM Corp. |
| */ |
| |
| #include <stdio.h> |
| #include <sys/prctl.h> |
| #include <limits.h> |
| #include "../event.h" |
| #include "../sampling_tests/misc.h" |
| |
| /* The data cache was reloaded from local core's L3 due to a demand load */ |
| #define EventCode_1 0x1340000001c040 |
| /* PM_DATA_RADIX_PROCESS_L2_PTE_FROM_L2 */ |
| #define EventCode_2 0x14242 |
| /* Event code with IFM, EBB, BHRB bits set in event code */ |
| #define EventCode_3 0xf00000000000001e |
| |
| /* |
| * Some of the bits in the event code is |
| * reserved for specific platforms. |
| * Event code bits 52-59 are reserved in power9, |
| * whereas in power10, these are used for programming |
| * Monitor Mode Control Register 3 (MMCR3). |
| * Bit 9 in event code is reserved in power9, |
| * whereas it is used for programming "radix_scope_qual" |
| * bit 18 in Monitor Mode Control Register 1 (MMCR1). |
| * |
| * Testcase to ensure that using reserved bits in |
| * event code should cause event_open to fail. |
| */ |
| |
| static int invalid_event_code(void) |
| { |
| struct event event; |
| |
| /* Check for platform support for the test */ |
| SKIP_IF(platform_check_for_tests()); |
| |
| /* |
| * Events using MMCR3 bits and radix scope qual bits |
| * should fail in power9 and should succeed in power10. |
| * Init the events and check for pass/fail in event open. |
| */ |
| if (have_hwcap2(PPC_FEATURE2_ARCH_3_1)) { |
| event_init(&event, EventCode_1); |
| FAIL_IF(event_open(&event)); |
| event_close(&event); |
| |
| event_init(&event, EventCode_2); |
| FAIL_IF(event_open(&event)); |
| event_close(&event); |
| } else { |
| event_init(&event, EventCode_1); |
| FAIL_IF(!event_open(&event)); |
| |
| event_init(&event, EventCode_2); |
| FAIL_IF(!event_open(&event)); |
| } |
| |
| return 0; |
| } |
| |
| int main(void) |
| { |
| return test_harness(invalid_event_code, "invalid_event_code"); |
| } |