// 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"); }