Adding upstream version 6.10.3.upstream/6.10.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 70 insertions, 63 deletions

diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c
index 178a41d4bb..55315ed695 100644
--- a/tools/testing/selftests/resctrl/cat_test.c
+++ b/tools/testing/selftests/resctrl/cat_test.c
@@ -128,7 +128,7 @@ static int check_results(struct resctrl_val_param *param, const char *cache_type
 	return fail;
 }
 
-void cat_test_cleanup(void)
+static void cat_test_cleanup(void)
 {
 	remove(RESULT_FILE_NAME);
 }
@@ -284,13 +284,10 @@ static int cat_run_test(const struct resctrl_test *test, const struct user_param
 
 	ret = cat_test(test, uparams, &param, span, start_mask);
 	if (ret)
-		goto out;
+		return ret;
 
 	ret = check_results(&param, test->resource,
 			    cache_total_size, full_cache_mask, start_mask);
-out:
-	cat_test_cleanup();
-
 	return ret;
 }
 
@@ -385,6 +382,7 @@ struct resctrl_test l3_cat_test = {
 	.resource = "L3",
 	.feature_check = test_resource_feature_check,
 	.run_test = cat_run_test,
+	.cleanup = cat_test_cleanup,
 };
 
 struct resctrl_test l3_noncont_cat_test = {
diff --git a/tools/testing/selftests/resctrl/cmt_test.c b/tools/testing/selftests/resctrl/cmt_test.c
index a81f91222a..0105afec61 100644
--- a/tools/testing/selftests/resctrl/cmt_test.c
+++ b/tools/testing/selftests/resctrl/cmt_test.c
@@ -40,11 +40,11 @@ static int show_results_info(unsigned long sum_llc_val, int no_of_bits,
 	int ret;
 
 	avg_llc_val = sum_llc_val / num_of_runs;
-	avg_diff = (long)abs(cache_span - avg_llc_val);
+	avg_diff = (long)(cache_span - avg_llc_val);
 	diff_percent = ((float)cache_span - avg_llc_val) / cache_span * 100;
 
 	ret = platform && abs((int)diff_percent) > max_diff_percent &&
-	      abs(avg_diff) > max_diff;
+	      labs(avg_diff) > max_diff;
 
 	ksft_print_msg("%s Check cache miss rate within %lu%%\n",
 		       ret ? "Fail:" : "Pass:", max_diff_percent);
@@ -91,7 +91,7 @@ static int check_results(struct resctrl_val_param *param, size_t span, int no_of
 				 MAX_DIFF, MAX_DIFF_PERCENT, runs - 1, true);
 }
 
-void cmt_test_cleanup(void)
+static void cmt_test_cleanup(void)
 {
 	remove(RESULT_FILE_NAME);
 }
@@ -161,7 +161,6 @@ static int cmt_run_test(const struct resctrl_test *test, const struct user_param
 		ksft_print_msg("Intel CMT may be inaccurate when Sub-NUMA Clustering is enabled. Check BIOS configuration.\n");
 
 out:
-	cmt_test_cleanup();
 	free(span_str);
 
 	return ret;
@@ -178,4 +177,5 @@ struct resctrl_test cmt_test = {
 	.resource = "L3",
 	.feature_check = cmt_feature_check,
 	.run_test = cmt_run_test,
+	.cleanup = cmt_test_cleanup,
 };
diff --git a/tools/testing/selftests/resctrl/mba_test.c b/tools/testing/selftests/resctrl/mba_test.c
index 7946e32e85..a6ad39aae1 100644
--- a/tools/testing/selftests/resctrl/mba_test.c
+++ b/tools/testing/selftests/resctrl/mba_test.c
@@ -60,8 +60,8 @@ static bool show_mba_info(unsigned long *bw_imc, unsigned long *bw_resc)
 	/* Memory bandwidth from 100% down to 10% */
 	for (allocation = 0; allocation < ALLOCATION_MAX / ALLOCATION_STEP;
 	     allocation++) {
-		unsigned long avg_bw_imc, avg_bw_resc;
 		unsigned long sum_bw_imc = 0, sum_bw_resc = 0;
+		long avg_bw_imc, avg_bw_resc;
 		int avg_diff_per;
 		float avg_diff;
 
@@ -137,7 +137,7 @@ static int check_results(void)
 	return show_mba_info(bw_imc, bw_resc);
 }
 
-void mba_test_cleanup(void)
+static void mba_test_cleanup(void)
 {
 	remove(RESULT_FILE_NAME);
 }
@@ -158,13 +158,10 @@ static int mba_run_test(const struct resctrl_test *test, const struct user_param
 
 	ret = resctrl_val(test, uparams, uparams->benchmark_cmd, &param);
 	if (ret)
-		goto out;
+		return ret;
 
 	ret = check_results();
 
-out:
-	mba_test_cleanup();
-
 	return ret;
 }
 
@@ -180,4 +177,5 @@ struct resctrl_test mba_test = {
 	.vendor_specific = ARCH_INTEL,
 	.feature_check = mba_feature_check,
 	.run_test = mba_run_test,
+	.cleanup = mba_test_cleanup,
 };
diff --git a/tools/testing/selftests/resctrl/mbm_test.c b/tools/testing/selftests/resctrl/mbm_test.c
index d67ffa3ec6..6fec51e1ff 100644
--- a/tools/testing/selftests/resctrl/mbm_test.c
+++ b/tools/testing/selftests/resctrl/mbm_test.c
@@ -17,8 +17,8 @@
 static int
 show_bw_info(unsigned long *bw_imc, unsigned long *bw_resc, size_t span)
 {
-	unsigned long avg_bw_imc = 0, avg_bw_resc = 0;
 	unsigned long sum_bw_imc = 0, sum_bw_resc = 0;
+	long avg_bw_imc = 0, avg_bw_resc = 0;
 	int runs, ret, avg_diff_per;
 	float avg_diff = 0;
 
@@ -105,7 +105,7 @@ static int mbm_setup(const struct resctrl_test *test,
 	return ret;
 }
 
-void mbm_test_cleanup(void)
+static void mbm_test_cleanup(void)
 {
 	remove(RESULT_FILE_NAME);
 }
@@ -126,15 +126,12 @@ static int mbm_run_test(const struct resctrl_test *test, const struct user_param
 
 	ret = resctrl_val(test, uparams, uparams->benchmark_cmd, &param);
 	if (ret)
-		goto out;
+		return ret;
 
 	ret = check_results(DEFAULT_SPAN);
 	if (ret && (get_vendor() == ARCH_INTEL))
 		ksft_print_msg("Intel MBM may be inaccurate when Sub-NUMA Clustering is enabled. Check BIOS configuration.\n");
 
-out:
-	mbm_test_cleanup();
-
 	return ret;
 }
 
@@ -150,4 +147,5 @@ struct resctrl_test mbm_test = {
 	.vendor_specific = ARCH_INTEL,
 	.feature_check = mbm_feature_check,
 	.run_test = mbm_run_test,
+	.cleanup = mbm_test_cleanup,
 };
diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h
index 2051bd135e..00d51fa753 100644
--- a/tools/testing/selftests/resctrl/resctrl.h
+++ b/tools/testing/selftests/resctrl/resctrl.h
@@ -72,6 +72,7 @@ struct user_params {
  * @disabled:		Test is disabled
  * @feature_check:	Callback to check required resctrl features
  * @run_test:		Callback to run the test
+ * @cleanup:		Callback to cleanup after the test
  */
 struct resctrl_test {
 	const char	*name;
@@ -82,6 +83,7 @@ struct resctrl_test {
 	bool		(*feature_check)(const struct resctrl_test *test);
 	int		(*run_test)(const struct resctrl_test *test,
 				    const struct user_params *uparams);
+	void		(*cleanup)(void);
 };
 
 /*
@@ -156,9 +158,6 @@ int resctrl_val(const struct resctrl_test *test,
 		const struct user_params *uparams,
 		const char * const *benchmark_cmd,
 		struct resctrl_val_param *param);
-void tests_cleanup(void);
-void mbm_test_cleanup(void);
-void mba_test_cleanup(void);
 unsigned long create_bit_mask(unsigned int start, unsigned int len);
 unsigned int count_contiguous_bits(unsigned long val, unsigned int *start);
 int get_full_cbm(const char *cache_type, unsigned long *mask);
@@ -166,11 +165,9 @@ int get_mask_no_shareable(const char *cache_type, unsigned long *mask);
 int get_cache_size(int cpu_no, const char *cache_type, unsigned long *cache_size);
 int resource_info_unsigned_get(const char *resource, const char *filename, unsigned int *val);
 void ctrlc_handler(int signum, siginfo_t *info, void *ptr);
-int signal_handler_register(void);
+int signal_handler_register(const struct resctrl_test *test);
 void signal_handler_unregister(void);
-void cat_test_cleanup(void);
 unsigned int count_bits(unsigned long n);
-void cmt_test_cleanup(void);
 
 void perf_event_attr_initialize(struct perf_event_attr *pea, __u64 config);
 void perf_event_initialize_read_format(struct perf_event_read *pe_read);
diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c
index f3dc1b9696..ecbb7605a9 100644
--- a/tools/testing/selftests/resctrl/resctrl_tests.c
+++ b/tools/testing/selftests/resctrl/resctrl_tests.c
@@ -81,19 +81,11 @@ static void cmd_help(void)
 	printf("\t-h: help\n");
 }
 
-void tests_cleanup(void)
-{
-	mbm_test_cleanup();
-	mba_test_cleanup();
-	cmt_test_cleanup();
-	cat_test_cleanup();
-}
-
-static int test_prepare(void)
+static int test_prepare(const struct resctrl_test *test)
 {
 	int res;
 
-	res = signal_handler_register();
+	res = signal_handler_register(test);
 	if (res) {
 		ksft_print_msg("Failed to register signal handler\n");
 		return res;
@@ -108,8 +100,10 @@ static int test_prepare(void)
 	return 0;
 }
 
-static void test_cleanup(void)
+static void test_cleanup(const struct resctrl_test *test)
 {
+	if (test->cleanup)
+		test->cleanup();
 	umount_resctrlfs();
 	signal_handler_unregister();
 }
@@ -136,7 +130,7 @@ static void run_single_test(const struct resctrl_test *test, const struct user_p
 
 	ksft_print_msg("Starting %s test ...\n", test->name);
 
-	if (test_prepare()) {
+	if (test_prepare(test)) {
 		ksft_exit_fail_msg("Abnormal failure when preparing for the test\n");
 		return;
 	}
@@ -151,7 +145,7 @@ static void run_single_test(const struct resctrl_test *test, const struct user_p
 	ksft_test_result(!ret, "%s: test\n", test->name);
 
 cleanup:
-	test_cleanup();
+	test_cleanup(test);
 }
 
 static void init_user_params(struct user_params *uparams)
@@ -253,13 +247,13 @@ last_arg:
 	 * 2. We execute perf commands
 	 */
 	if (geteuid() != 0)
-		return ksft_exit_skip("Not running as root. Skipping...\n");
+		ksft_exit_skip("Not running as root. Skipping...\n");
 
 	if (!check_resctrlfs_support())
-		return ksft_exit_skip("resctrl FS does not exist. Enable X86_CPU_RESCTRL config option.\n");
+		ksft_exit_skip("resctrl FS does not exist. Enable X86_CPU_RESCTRL config option.\n");
 
 	if (umount_resctrlfs())
-		return ksft_exit_skip("resctrl FS unmount failed.\n");
+		ksft_exit_skip("resctrl FS unmount failed.\n");
 
 	filter_dmesg();
 
diff --git a/tools/testing/selftests/resctrl/resctrl_val.c b/tools/testing/selftests/resctrl/resctrl_val.c
index 5a49f07a6c..f55f5989de 100644
--- a/tools/testing/selftests/resctrl/resctrl_val.c
+++ b/tools/testing/selftests/resctrl/resctrl_val.c
@@ -62,6 +62,7 @@ struct imc_counter_config {
 static char mbm_total_path[1024];
 static int imcs;
 static struct imc_counter_config imc_counters_config[MAX_IMCS][2];
+static const struct resctrl_test *current_test;
 
 void membw_initialize_perf_event_attr(int i, int j)
 {
@@ -292,6 +293,18 @@ static int initialize_mem_bw_imc(void)
 	return 0;
 }
 
+static void perf_close_imc_mem_bw(void)
+{
+	int mc;
+
+	for (mc = 0; mc < imcs; mc++) {
+		if (imc_counters_config[mc][READ].fd != -1)
+			close(imc_counters_config[mc][READ].fd);
+		if (imc_counters_config[mc][WRITE].fd != -1)
+			close(imc_counters_config[mc][WRITE].fd);
+	}
+}
+
 /*
  * get_mem_bw_imc:	Memory band width as reported by iMC counters
  * @cpu_no:		CPU number that the benchmark PID is binded to
@@ -305,26 +318,33 @@ static int initialize_mem_bw_imc(void)
 static int get_mem_bw_imc(int cpu_no, char *bw_report, float *bw_imc)
 {
 	float reads, writes, of_mul_read, of_mul_write;
-	int imc, j, ret;
+	int imc, ret;
+
+	for (imc = 0; imc < imcs; imc++) {
+		imc_counters_config[imc][READ].fd = -1;
+		imc_counters_config[imc][WRITE].fd = -1;
+	}
 
 	/* Start all iMC counters to log values (both read and write) */
 	reads = 0, writes = 0, of_mul_read = 1, of_mul_write = 1;
 	for (imc = 0; imc < imcs; imc++) {
-		for (j = 0; j < 2; j++) {
-			ret = open_perf_event(imc, cpu_no, j);
-			if (ret)
-				return -1;
-		}
-		for (j = 0; j < 2; j++)
-			membw_ioctl_perf_event_ioc_reset_enable(imc, j);
+		ret = open_perf_event(imc, cpu_no, READ);
+		if (ret)
+			goto close_fds;
+		ret = open_perf_event(imc, cpu_no, WRITE);
+		if (ret)
+			goto close_fds;
+
+		membw_ioctl_perf_event_ioc_reset_enable(imc, READ);
+		membw_ioctl_perf_event_ioc_reset_enable(imc, WRITE);
 	}
 
 	sleep(1);
 
 	/* Stop counters after a second to get results (both read and write) */
 	for (imc = 0; imc < imcs; imc++) {
-		for (j = 0; j < 2; j++)
-			membw_ioctl_perf_event_ioc_disable(imc, j);
+		membw_ioctl_perf_event_ioc_disable(imc, READ);
+		membw_ioctl_perf_event_ioc_disable(imc, WRITE);
 	}
 
 	/*
@@ -340,15 +360,13 @@ static int get_mem_bw_imc(int cpu_no, char *bw_report, float *bw_imc)
 		if (read(r->fd, &r->return_value,
 			 sizeof(struct membw_read_format)) == -1) {
 			ksft_perror("Couldn't get read b/w through iMC");
-
-			return -1;
+			goto close_fds;
 		}
 
 		if (read(w->fd, &w->return_value,
 			 sizeof(struct membw_read_format)) == -1) {
 			ksft_perror("Couldn't get write bw through iMC");
-
-			return -1;
+			goto close_fds;
 		}
 
 		__u64 r_time_enabled = r->return_value.time_enabled;
@@ -368,10 +386,7 @@ static int get_mem_bw_imc(int cpu_no, char *bw_report, float *bw_imc)
 		writes += w->return_value.value * of_mul_write * SCALE;
 	}
 
-	for (imc = 0; imc < imcs; imc++) {
-		close(imc_counters_config[imc][READ].fd);
-		close(imc_counters_config[imc][WRITE].fd);
-	}
+	perf_close_imc_mem_bw();
 
 	if (strcmp(bw_report, "reads") == 0) {
 		*bw_imc = reads;
@@ -385,6 +400,10 @@ static int get_mem_bw_imc(int cpu_no, char *bw_report, float *bw_imc)
 
 	*bw_imc = reads + writes;
 	return 0;
+
+close_fds:
+	perf_close_imc_mem_bw();
+	return -1;
 }
 
 void set_mbm_path(const char *ctrlgrp, const char *mongrp, int domain_id)
@@ -472,7 +491,8 @@ void ctrlc_handler(int signum, siginfo_t *info, void *ptr)
 	if (bm_pid)
 		kill(bm_pid, SIGKILL);
 	umount_resctrlfs();
-	tests_cleanup();
+	if (current_test && current_test->cleanup)
+		current_test->cleanup();
 	ksft_print_msg("Ending\n\n");
 
 	exit(EXIT_SUCCESS);
@@ -482,13 +502,14 @@ void ctrlc_handler(int signum, siginfo_t *info, void *ptr)
  * Register CTRL-C handler for parent, as it has to kill
  * child process before exiting.
  */
-int signal_handler_register(void)
+int signal_handler_register(const struct resctrl_test *test)
 {
 	struct sigaction sigact = {};
 	int ret = 0;
 
 	bm_pid = 0;
 
+	current_test = test;
 	sigact.sa_sigaction = ctrlc_handler;
 	sigemptyset(&sigact.sa_mask);
 	sigact.sa_flags = SA_SIGINFO;
@@ -510,6 +531,7 @@ void signal_handler_unregister(void)
 {
 	struct sigaction sigact = {};
 
+	current_test = NULL;
 	sigact.sa_handler = SIG_DFL;
 	sigemptyset(&sigact.sa_mask);
 	if (sigaction(SIGINT, &sigact, NULL) ||