From bdce57e7ae9cac56cda958029104c752afaf0894 Mon Sep 17 00:00:00 2001 From: Prarit Bhargava Date: Fri, 3 Mar 2017 09:44:11 -0500 Subject: tools/power/acpi: Add .gitignore file Add a .gitignore file so that git commands do not pick up the resulting binaries and directories. Signed-off-by: Prarit Bhargava Acked-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- tools/power/acpi/.gitignore | 4 ++++ 1 file changed, 4 insertions(+) create mode 100644 tools/power/acpi/.gitignore (limited to 'tools') diff --git a/tools/power/acpi/.gitignore b/tools/power/acpi/.gitignore new file mode 100644 index 0000000..cba3d99 --- /dev/null +++ b/tools/power/acpi/.gitignore @@ -0,0 +1,4 @@ +acpidbg +acpidump +ec +include -- cgit v1.1 From cde97f8492ac4425c4d0647a308e15e78cb4c218 Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Mon, 8 May 2017 17:16:27 +1000 Subject: selftests/powerpc: Test TM and VMX register state Test that the VMX checkpointed register state is maintained when a VMX unavailable exception is taken during a transaction. Thanks to Breno Leitao and Gustavo Bueno Romero for the original test this is based heavily on. Signed-off-by: Michael Neuling Reviewed-by: Cyril Bur [mpe: Add to .gitignore, always build it 64-bit to fix build errors] Signed-off-by: Michael Ellerman --- tools/testing/selftests/powerpc/tm/.gitignore | 1 + tools/testing/selftests/powerpc/tm/Makefile | 4 +- .../testing/selftests/powerpc/tm/tm-vmx-unavail.c | 118 +++++++++++++++++++++ 3 files changed, 122 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c (limited to 'tools') diff --git a/tools/testing/selftests/powerpc/tm/.gitignore b/tools/testing/selftests/powerpc/tm/.gitignore index 4276217..2f1f7b01 100644 --- a/tools/testing/selftests/powerpc/tm/.gitignore +++ b/tools/testing/selftests/powerpc/tm/.gitignore @@ -11,3 +11,4 @@ tm-signal-context-chk-fpu tm-signal-context-chk-gpr tm-signal-context-chk-vmx tm-signal-context-chk-vsx +tm-vmx-unavail diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile index 5576ee6..958c11c 100644 --- a/tools/testing/selftests/powerpc/tm/Makefile +++ b/tools/testing/selftests/powerpc/tm/Makefile @@ -2,7 +2,8 @@ SIGNAL_CONTEXT_CHK_TESTS := tm-signal-context-chk-gpr tm-signal-context-chk-fpu tm-signal-context-chk-vmx tm-signal-context-chk-vsx TEST_GEN_PROGS := tm-resched-dscr tm-syscall tm-signal-msr-resv tm-signal-stack \ - tm-vmxcopy tm-fork tm-tar tm-tmspr $(SIGNAL_CONTEXT_CHK_TESTS) + tm-vmxcopy tm-fork tm-tar tm-tmspr tm-vmx-unavail \ + $(SIGNAL_CONTEXT_CHK_TESTS) include ../../lib.mk @@ -13,6 +14,7 @@ CFLAGS += -mhtm $(OUTPUT)/tm-syscall: tm-syscall-asm.S $(OUTPUT)/tm-syscall: CFLAGS += -I../../../../../usr/include $(OUTPUT)/tm-tmspr: CFLAGS += -pthread +$(OUTPUT)/tm-vmx-unavail: CFLAGS += -pthread -m64 SIGNAL_CONTEXT_CHK_TESTS := $(patsubst %,$(OUTPUT)/%,$(SIGNAL_CONTEXT_CHK_TESTS)) $(SIGNAL_CONTEXT_CHK_TESTS): tm-signal.S diff --git a/tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c b/tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c new file mode 100644 index 0000000..137185b --- /dev/null +++ b/tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c @@ -0,0 +1,118 @@ +/* + * Copyright 2017, Michael Neuling, IBM Corp. + * Licensed under GPLv2. + * Original: Breno Leitao & + * Gustavo Bueno Romero + * Edited: Michael Neuling + * + * Force VMX unavailable during a transaction and see if it corrupts + * the checkpointed VMX register state after the abort. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "tm.h" +#include "utils.h" + +int passed; + +void *worker(void *unused) +{ + __int128 vmx0; + uint64_t texasr; + + asm goto ( + "li 3, 1;" /* Stick non-zero value in VMX0 */ + "std 3, 0(%[vmx0_ptr]);" + "lvx 0, 0, %[vmx0_ptr];" + + /* Wait here a bit so we get scheduled out 255 times */ + "lis 3, 0x3fff;" + "1: ;" + "addi 3, 3, -1;" + "cmpdi 3, 0;" + "bne 1b;" + + /* Kernel will hopefully turn VMX off now */ + + "tbegin. ;" + "beq failure;" + + /* Cause VMX unavail. Any VMX instruction */ + "vaddcuw 0,0,0;" + + "tend. ;" + "b %l[success];" + + /* Check VMX0 sanity after abort */ + "failure: ;" + "lvx 1, 0, %[vmx0_ptr];" + "vcmpequb. 2, 0, 1;" + "bc 4, 24, %l[value_mismatch];" + "b %l[value_match];" + : + : [vmx0_ptr] "r"(&vmx0) + : "r3" + : success, value_match, value_mismatch + ); + + /* HTM aborted and VMX0 is corrupted */ +value_mismatch: + texasr = __builtin_get_texasr(); + + printf("\n\n==============\n\n"); + printf("Failure with error: %lx\n", _TEXASR_FAILURE_CODE(texasr)); + printf("Summary error : %lx\n", _TEXASR_FAILURE_SUMMARY(texasr)); + printf("TFIAR exact : %lx\n\n", _TEXASR_TFIAR_EXACT(texasr)); + + passed = 0; + return NULL; + + /* HTM aborted but VMX0 is correct */ +value_match: +// printf("!"); + return NULL; + +success: +// printf("."); + return NULL; +} + +int tm_vmx_unavail_test() +{ + int threads; + pthread_t *thread; + + SKIP_IF(!have_htm()); + + passed = 1; + + threads = sysconf(_SC_NPROCESSORS_ONLN) * 4; + thread = malloc(sizeof(pthread_t)*threads); + if (!thread) + return EXIT_FAILURE; + + for (uint64_t i = 0; i < threads; i++) + pthread_create(&thread[i], NULL, &worker, NULL); + + for (uint64_t i = 0; i < threads; i++) + pthread_join(thread[i], NULL); + + free(thread); + + return passed ? EXIT_SUCCESS : EXIT_FAILURE; +} + + +int main(int argc, char **argv) +{ + return test_harness(tm_vmx_unavail_test, "tm_vmx_unavail_test"); +} -- cgit v1.1 From d2ffb8d3cc3458e2102b2f067a2e82c84947deea Mon Sep 17 00:00:00 2001 From: "Naveen N. Rao" Date: Tue, 16 May 2017 23:21:27 +0530 Subject: selftests/ftrace: Fix bashisms Fix a few bashisms in ftrace selftests. Link: http://lkml.kernel.org/r/5fbf4613eef0766918fa04e3ff537cae271223ee.1494956770.git.naveen.n.rao@linux.vnet.ibm.com Acked-by: Masami Hiramatsu Signed-off-by: Naveen N. Rao Signed-off-by: Steven Rostedt (VMware) --- tools/testing/selftests/ftrace/ftracetest | 2 +- tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc | 2 +- tools/testing/selftests/ftrace/test.d/functions | 4 ++-- 3 files changed, 4 insertions(+), 4 deletions(-) (limited to 'tools') diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest index 32e6211..7175811 100755 --- a/tools/testing/selftests/ftrace/ftracetest +++ b/tools/testing/selftests/ftrace/ftracetest @@ -58,7 +58,7 @@ parse_opts() { # opts ;; --verbose|-v|-vv) VERBOSE=$((VERBOSE + 1)) - [ $1 == '-vv' ] && VERBOSE=$((VERBOSE + 1)) + [ $1 = '-vv' ] && VERBOSE=$((VERBOSE + 1)) shift 1 ;; --debug|-d) diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc index 07bb3e5..aa31368 100644 --- a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc @@ -48,7 +48,7 @@ test_event_enabled() { e=`cat $EVENT_ENABLE` if [ "$e" != $val ]; then echo "Expected $val but found $e" - exit -1 + exit 1 fi } diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index 9aec6fc..f2019b3 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -34,10 +34,10 @@ reset_ftrace_filter() { # reset all triggers in set_ftrace_filter echo > set_ftrace_filter grep -v '^#' set_ftrace_filter | while read t; do tr=`echo $t | cut -d: -f2` - if [ "$tr" == "" ]; then + if [ "$tr" = "" ]; then continue fi - if [ $tr == "enable_event" -o $tr == "disable_event" ]; then + if [ $tr = "enable_event" -o $tr = "disable_event" ]; then tr=`echo $t | cut -d: -f1-4` limit=`echo $t | cut -d: -f5` else -- cgit v1.1 From b172296b90b799c8b634521c248e9316581c8154 Mon Sep 17 00:00:00 2001 From: "Naveen N. Rao" Date: Tue, 16 May 2017 23:21:28 +0530 Subject: selftests/ftrace: Add test to remove instance with active event triggers Add a test to ensure we clean up properly when removing an instance with active event triggers. Link: http://lkml.kernel.org/r/c479465b2009397708d6c52c8561e1523c22cd31.1494956770.git.naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Naveen N. Rao Signed-off-by: Steven Rostedt (VMware) --- tools/testing/selftests/ftrace/test.d/instances/instance-event.tc | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'tools') diff --git a/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc b/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc index 4c5a061..c73db78 100644 --- a/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc +++ b/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc @@ -75,9 +75,13 @@ rmdir foo if [ -d foo ]; then fail "foo still exists" fi -exit 0 - +mkdir foo +echo "schedule:enable_event:sched:sched_switch" > foo/set_ftrace_filter +rmdir foo +if [ -d foo ]; then + fail "foo still exists" +fi instance_slam() { -- cgit v1.1