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Diffstat (limited to 'powerpc/pmu/ebb/close_clears_pmcc_test.c')
-rw-r--r--powerpc/pmu/ebb/close_clears_pmcc_test.c59
1 files changed, 0 insertions, 59 deletions
diff --git a/powerpc/pmu/ebb/close_clears_pmcc_test.c b/powerpc/pmu/ebb/close_clears_pmcc_test.c
deleted file mode 100644
index 0f0423d..0000000
--- a/powerpc/pmu/ebb/close_clears_pmcc_test.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <setjmp.h>
-#include <signal.h>
-
-#include "ebb.h"
-
-
-/*
- * Test that closing the EBB event clears MMCR0_PMCC, preventing further access
- * by userspace to the PMU hardware.
- */
-
-int close_clears_pmcc(void)
-{
- struct event event;
-
- event_init_named(&event, 0x1001e, "cycles");
- event_leader_ebb_init(&event);
-
- FAIL_IF(event_open(&event));
-
- ebb_enable_pmc_counting(1);
- setup_ebb_handler(standard_ebb_callee);
- ebb_global_enable();
- FAIL_IF(ebb_event_enable(&event));
-
- mtspr(SPRN_PMC1, pmc_sample_period(sample_period));
-
- while (ebb_state.stats.ebb_count < 1)
- FAIL_IF(core_busy_loop());
-
- ebb_global_disable();
- event_close(&event);
-
- FAIL_IF(ebb_state.stats.ebb_count == 0);
-
- /* The real test is here, do we take a SIGILL when writing PMU regs now
- * that we have closed the event. We expect that we will. */
-
- FAIL_IF(catch_sigill(write_pmc1));
-
- /* We should still be able to read EBB regs though */
- mfspr(SPRN_EBBHR);
- mfspr(SPRN_EBBRR);
- mfspr(SPRN_BESCR);
-
- return 0;
-}
-
-int main(void)
-{
- return test_harness(close_clears_pmcc, "close_clears_pmcc");
-}