Merge tag 'asoc-v6.10' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v6.10

This is a very big update, in large part due to extensive work the Intel
people have been doing in their drivers though it's also been busy
elsewhere.  There's also a big overhaul of the DAPM documentation from
Luca Ceresoli arising from the work he did putting together his recent
ELC talk, and he also contributed a new tool for visualising the DAPM
state.

 - A new tool dapm-graph for visualising the DAPM state.
 - Substantial fixes and clarifications for the DAPM documentation.
 - Very large updates throughout the Intel audio drivers.
 - Cleanups of accessors for driver data, module labelling, and for
   constification.
 - Modernsation and cleanup work in the Mediatek drivers.
 - Several fixes and features for the DaVinci I2S driver.
 - New drivers for several AMD and Intel platforms, Nuvoton NAU8325,
   Rockchip RK3308 and Texas Instruments PCM6240.

tools/testing/cxl/test/cxl.c

@@ -986,10 +986,12 @@ static void dpa_perf_setup(struct cxl_port *endpoint, struct range *range,
 {
 	dpa_perf->qos_class = FAKE_QTG_ID;
 	dpa_perf->dpa_range = *range;
-	dpa_perf->coord.read_latency = 500;
-	dpa_perf->coord.write_latency = 500;
-	dpa_perf->coord.read_bandwidth = 1000;
-	dpa_perf->coord.write_bandwidth = 1000;
+	for (int i = 0; i < ACCESS_COORDINATE_MAX; i++) {
+		dpa_perf->coord[i].read_latency = 500;
+		dpa_perf->coord[i].write_latency = 500;
+		dpa_perf->coord[i].read_bandwidth = 1000;
+		dpa_perf->coord[i].write_bandwidth = 1000;
+	}
 }
 
 static void mock_cxl_endpoint_parse_cdat(struct cxl_port *port)

tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc

@@ -18,7 +18,7 @@ echo 'sched:*' > set_event
 
 yield
 
-count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
+count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
 if [ $count -lt 3 ]; then
     fail "at least fork, exec and exit events should be recorded"
 fi
@@ -29,7 +29,7 @@ echo 1 > events/sched/enable
 
 yield
 
-count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
+count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
 if [ $count -lt 3 ]; then
     fail "at least fork, exec and exit events should be recorded"
 fi
@@ -40,7 +40,7 @@ echo 0 > events/sched/enable
 
 yield
 
-count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
+count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
 if [ $count -ne 0 ]; then
     fail "any of scheduler events should not be recorded"
 fi

tools/testing/selftests/iommu/config

@@ -1,3 +1,5 @@
 CONFIG_IOMMUFD=y
+CONFIG_FAULT_INJECTION_DEBUG_FS=y
 CONFIG_FAULT_INJECTION=y
 CONFIG_IOMMUFD_TEST=y
+CONFIG_FAILSLAB=y

tools/testing/selftests/kselftest.h

@@ -51,6 +51,7 @@
 #include <stdarg.h>
 #include <string.h>
 #include <stdio.h>
+#include <sys/utsname.h>
 #endif
 
 #ifndef ARRAY_SIZE
@@ -79,6 +80,9 @@
 #define KSFT_XPASS 3
 #define KSFT_SKIP  4
 
+#ifndef __noreturn
+#define __noreturn       __attribute__((__noreturn__))
+#endif
 #define __printf(a, b)   __attribute__((format(printf, a, b)))
 
 /* counters */
@@ -288,24 +292,26 @@ void ksft_test_result_code(int exit_code, const char *test_name,
 	}
 
 	/* Docs seem to call for double space if directive is absent */
-	if (!directive[0] && msg[0])
+	if (!directive[0] && msg)
 		directive = " #  ";
 
-	va_start(args, msg);
 	printf("%s %u %s%s", tap_code, ksft_test_num(), test_name, directive);
 	errno = saved_errno;
-	vprintf(msg, args);
+	if (msg) {
+		va_start(args, msg);
+		vprintf(msg, args);
+		va_end(args);
+	}
 	printf("\n");
-	va_end(args);
 }
 
-static inline int ksft_exit_pass(void)
+static inline __noreturn int ksft_exit_pass(void)
 {
 	ksft_print_cnts();
 	exit(KSFT_PASS);
 }
 
-static inline int ksft_exit_fail(void)
+static inline __noreturn int ksft_exit_fail(void)
 {
 	ksft_print_cnts();
 	exit(KSFT_FAIL);
@@ -332,7 +338,7 @@ static inline int ksft_exit_fail(void)
 		  ksft_cnt.ksft_xfail +	\
 		  ksft_cnt.ksft_xskip)
 
-static inline __printf(1, 2) int ksft_exit_fail_msg(const char *msg, ...)
+static inline __noreturn __printf(1, 2) int ksft_exit_fail_msg(const char *msg, ...)
 {
 	int saved_errno = errno;
 	va_list args;
@@ -347,19 +353,19 @@ static inline __printf(1, 2) int ksft_exit_fail_msg(const char *msg, ...)
 	exit(KSFT_FAIL);
 }
 
-static inline int ksft_exit_xfail(void)
+static inline __noreturn int ksft_exit_xfail(void)
 {
 	ksft_print_cnts();
 	exit(KSFT_XFAIL);
 }
 
-static inline int ksft_exit_xpass(void)
+static inline __noreturn int ksft_exit_xpass(void)
 {
 	ksft_print_cnts();
 	exit(KSFT_XPASS);
 }
 
-static inline __printf(1, 2) int ksft_exit_skip(const char *msg, ...)
+static inline __noreturn __printf(1, 2) int ksft_exit_skip(const char *msg, ...)
 {
 	int saved_errno = errno;
 	va_list args;
@@ -388,4 +394,21 @@ static inline __printf(1, 2) int ksft_exit_skip(const char *msg, ...)
 	exit(KSFT_SKIP);
 }
 
+static inline int ksft_min_kernel_version(unsigned int min_major,
+					  unsigned int min_minor)
+{
+#ifdef NOLIBC
+	ksft_print_msg("NOLIBC: Can't check kernel version: Function not implemented\n");
+	return 0;
+#else
+	unsigned int major, minor;
+	struct utsname info;
+
+	if (uname(&info) || sscanf(info.release, "%u.%u.", &major, &minor) != 2)
+		ksft_exit_fail_msg("Can't parse kernel version\n");
+
+	return major > min_major || (major == min_major && minor >= min_minor);
+#endif
+}
+
 #endif /* __KSELFTEST_H */

tools/testing/selftests/kselftest_harness.h

@@ -383,6 +383,7 @@
 		FIXTURE_DATA(fixture_name) self; \
 		pid_t child = 1; \
 		int status = 0; \
+		bool jmp = false; \
 		memset(&self, 0, sizeof(FIXTURE_DATA(fixture_name))); \
 		if (setjmp(_metadata->env) == 0) { \
 			/* Use the same _metadata. */ \
@@ -399,8 +400,10 @@
 				_metadata->exit_code = KSFT_FAIL; \
 			} \
 		} \
+		else \
+			jmp = true; \
 		if (child == 0) { \
-			if (_metadata->setup_completed && !_metadata->teardown_parent) \
+			if (_metadata->setup_completed && !_metadata->teardown_parent && !jmp) \
 				fixture_name##_teardown(_metadata, &self, variant->data); \
 			_exit(0); \
 		} \
@@ -1202,7 +1205,7 @@ void __run_test(struct __fixture_metadata *f,
 		diagnostic = "unknown";
 
 	ksft_test_result_code(t->exit_code, test_name,
-			      diagnostic ? "%s" : "", diagnostic);
+			      diagnostic ? "%s" : NULL, diagnostic);
 }
 
 static int test_harness_run(int argc, char **argv)

tools/testing/selftests/kvm/max_guest_memory_test.c

@@ -22,10 +22,11 @@ static void guest_code(uint64_t start_gpa, uint64_t end_gpa, uint64_t stride)
 {
 	uint64_t gpa;
 
-	for (gpa = start_gpa; gpa < end_gpa; gpa += stride)
-		*((volatile uint64_t *)gpa) = gpa;
-
-	GUEST_DONE();
+	for (;;) {
+		for (gpa = start_gpa; gpa < end_gpa; gpa += stride)
+			*((volatile uint64_t *)gpa) = gpa;
+		GUEST_SYNC(0);
+	}
 }
 
 struct vcpu_info {
@@ -55,7 +56,7 @@ static void rendezvous_with_boss(void)
 static void run_vcpu(struct kvm_vcpu *vcpu)
 {
 	vcpu_run(vcpu);
-	TEST_ASSERT_EQ(get_ucall(vcpu, NULL), UCALL_DONE);
+	TEST_ASSERT_EQ(get_ucall(vcpu, NULL), UCALL_SYNC);
 }
 
 static void *vcpu_worker(void *data)
@@ -64,17 +65,13 @@ static void *vcpu_worker(void *data)
 	struct kvm_vcpu *vcpu = info->vcpu;
 	struct kvm_vm *vm = vcpu->vm;
 	struct kvm_sregs sregs;
-	struct kvm_regs regs;
 
 	vcpu_args_set(vcpu, 3, info->start_gpa, info->end_gpa, vm->page_size);
 
-	/* Snapshot regs before the first run. */
-	vcpu_regs_get(vcpu, &regs);
 	rendezvous_with_boss();
 
 	run_vcpu(vcpu);
 	rendezvous_with_boss();
-	vcpu_regs_set(vcpu, &regs);
 	vcpu_sregs_get(vcpu, &sregs);
 #ifdef __x86_64__
 	/* Toggle CR0.WP to trigger a MMU context reset. */

tools/testing/selftests/kvm/set_memory_region_test.c

@@ -333,7 +333,7 @@ static void test_invalid_memory_region_flags(void)
 	struct kvm_vm *vm;
 	int r, i;
 
-#if defined __aarch64__ || defined __x86_64__
+#if defined __aarch64__ || defined __riscv || defined __x86_64__
 	supported_flags |= KVM_MEM_READONLY;
 #endif
 

tools/testing/selftests/kvm/x86_64/pmu_counters_test.c

@@ -416,12 +416,30 @@ static void guest_rd_wr_counters(uint32_t base_msr, uint8_t nr_possible_counters
 
 static void guest_test_gp_counters(void)
 {
+	uint8_t pmu_version = guest_get_pmu_version();
 	uint8_t nr_gp_counters = 0;
 	uint32_t base_msr;
 
-	if (guest_get_pmu_version())
+	if (pmu_version)
 		nr_gp_counters = this_cpu_property(X86_PROPERTY_PMU_NR_GP_COUNTERS);
 
+	/*
+	 * For v2+ PMUs, PERF_GLOBAL_CTRL's architectural post-RESET value is
+	 * "Sets bits n-1:0 and clears the upper bits", where 'n' is the number
+	 * of GP counters.  If there are no GP counters, require KVM to leave
+	 * PERF_GLOBAL_CTRL '0'.  This edge case isn't covered by the SDM, but
+	 * follow the spirit of the architecture and only globally enable GP
+	 * counters, of which there are none.
+	 */
+	if (pmu_version > 1) {
+		uint64_t global_ctrl = rdmsr(MSR_CORE_PERF_GLOBAL_CTRL);
+
+		if (nr_gp_counters)
+			GUEST_ASSERT_EQ(global_ctrl, GENMASK_ULL(nr_gp_counters - 1, 0));
+		else
+			GUEST_ASSERT_EQ(global_ctrl, 0);
+	}
+
 	if (this_cpu_has(X86_FEATURE_PDCM) &&
 	    rdmsr(MSR_IA32_PERF_CAPABILITIES) & PMU_CAP_FW_WRITES)
 		base_msr = MSR_IA32_PMC0;

tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c

@@ -28,16 +28,16 @@
 #define NESTED_TEST_MEM1		0xc0001000
 #define NESTED_TEST_MEM2		0xc0002000
 
-static void l2_guest_code(void)
+static void l2_guest_code(u64 *a, u64 *b)
 {
-	*(volatile uint64_t *)NESTED_TEST_MEM1;
-	*(volatile uint64_t *)NESTED_TEST_MEM1 = 1;
+	READ_ONCE(*a);
+	WRITE_ONCE(*a, 1);
 	GUEST_SYNC(true);
 	GUEST_SYNC(false);
 
-	*(volatile uint64_t *)NESTED_TEST_MEM2 = 1;
+	WRITE_ONCE(*b, 1);
 	GUEST_SYNC(true);
-	*(volatile uint64_t *)NESTED_TEST_MEM2 = 1;
+	WRITE_ONCE(*b, 1);
 	GUEST_SYNC(true);
 	GUEST_SYNC(false);
 
@@ -45,17 +45,33 @@ static void l2_guest_code(void)
 	vmcall();
 }
 
+static void l2_guest_code_ept_enabled(void)
+{
+	l2_guest_code((u64 *)NESTED_TEST_MEM1, (u64 *)NESTED_TEST_MEM2);
+}
+
+static void l2_guest_code_ept_disabled(void)
+{
+	/* Access the same L1 GPAs as l2_guest_code_ept_enabled() */
+	l2_guest_code((u64 *)GUEST_TEST_MEM, (u64 *)GUEST_TEST_MEM);
+}
+
 void l1_guest_code(struct vmx_pages *vmx)
 {
 #define L2_GUEST_STACK_SIZE 64
 	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	void *l2_rip;
 
 	GUEST_ASSERT(vmx->vmcs_gpa);
 	GUEST_ASSERT(prepare_for_vmx_operation(vmx));
 	GUEST_ASSERT(load_vmcs(vmx));
 
-	prepare_vmcs(vmx, l2_guest_code,
-		     &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+	if (vmx->eptp_gpa)
+		l2_rip = l2_guest_code_ept_enabled;
+	else
+		l2_rip = l2_guest_code_ept_disabled;
+
+	prepare_vmcs(vmx, l2_rip, &l2_guest_stack[L2_GUEST_STACK_SIZE]);
 
 	GUEST_SYNC(false);
 	GUEST_ASSERT(!vmlaunch());
@@ -64,7 +80,7 @@ void l1_guest_code(struct vmx_pages *vmx)
 	GUEST_DONE();
 }
 
-int main(int argc, char *argv[])
+static void test_vmx_dirty_log(bool enable_ept)
 {
 	vm_vaddr_t vmx_pages_gva = 0;
 	struct vmx_pages *vmx;
@@ -76,8 +92,7 @@ int main(int argc, char *argv[])
 	struct ucall uc;
 	bool done = false;
 
-	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
-	TEST_REQUIRE(kvm_cpu_has_ept());
+	pr_info("Nested EPT: %s\n", enable_ept ? "enabled" : "disabled");
 
 	/* Create VM */
 	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
@@ -103,11 +118,16 @@ int main(int argc, char *argv[])
 	 *
 	 * Note that prepare_eptp should be called only L1's GPA map is done,
 	 * meaning after the last call to virt_map.
+	 *
+	 * When EPT is disabled, the L2 guest code will still access the same L1
+	 * GPAs as the EPT enabled case.
 	 */
-	prepare_eptp(vmx, vm, 0);
-	nested_map_memslot(vmx, vm, 0);
-	nested_map(vmx, vm, NESTED_TEST_MEM1, GUEST_TEST_MEM, 4096);
-	nested_map(vmx, vm, NESTED_TEST_MEM2, GUEST_TEST_MEM, 4096);
+	if (enable_ept) {
+		prepare_eptp(vmx, vm, 0);
+		nested_map_memslot(vmx, vm, 0);
+		nested_map(vmx, vm, NESTED_TEST_MEM1, GUEST_TEST_MEM, 4096);
+		nested_map(vmx, vm, NESTED_TEST_MEM2, GUEST_TEST_MEM, 4096);
+	}
 
 	bmap = bitmap_zalloc(TEST_MEM_PAGES);
 	host_test_mem = addr_gpa2hva(vm, GUEST_TEST_MEM);
@@ -148,3 +168,15 @@ int main(int argc, char *argv[])
 		}
 	}
 }
+
+int main(int argc, char *argv[])
+{
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
+
+	test_vmx_dirty_log(/*enable_ept=*/false);
+
+	if (kvm_cpu_has_ept())
+		test_vmx_dirty_log(/*enable_ept=*/true);
+
+	return 0;
+}

tools/testing/selftests/net/tcp_ao/lib/proc.c

@@ -86,7 +86,7 @@ static void netstat_read_type(FILE *fnetstat, struct netstat **dest, char *line)
 
 	pos = strchr(line, ' ') + 1;
 
-	if (fscanf(fnetstat, type->header_name) == EOF)
+	if (fscanf(fnetstat, "%[^ :]", type->header_name) == EOF)
 		test_error("fscanf(%s)", type->header_name);
 	if (fread(&tmp, 1, 1, fnetstat) != 1 || tmp != ':')
 		test_error("Unexpected netstat format (%c)", tmp);

tools/testing/selftests/net/tcp_ao/lib/setup.c

@@ -17,37 +17,37 @@ static pthread_mutex_t ksft_print_lock = PTHREAD_MUTEX_INITIALIZER;
 void __test_msg(const char *buf)
 {
 	pthread_mutex_lock(&ksft_print_lock);
-	ksft_print_msg(buf);
+	ksft_print_msg("%s", buf);
 	pthread_mutex_unlock(&ksft_print_lock);
 }
 void __test_ok(const char *buf)
 {
 	pthread_mutex_lock(&ksft_print_lock);
-	ksft_test_result_pass(buf);
+	ksft_test_result_pass("%s", buf);
 	pthread_mutex_unlock(&ksft_print_lock);
 }
 void __test_fail(const char *buf)
 {
 	pthread_mutex_lock(&ksft_print_lock);
-	ksft_test_result_fail(buf);
+	ksft_test_result_fail("%s", buf);
 	pthread_mutex_unlock(&ksft_print_lock);
 }
 void __test_xfail(const char *buf)
 {
 	pthread_mutex_lock(&ksft_print_lock);
-	ksft_test_result_xfail(buf);
+	ksft_test_result_xfail("%s", buf);
 	pthread_mutex_unlock(&ksft_print_lock);
 }
 void __test_error(const char *buf)
 {
 	pthread_mutex_lock(&ksft_print_lock);
-	ksft_test_result_error(buf);
+	ksft_test_result_error("%s", buf);
 	pthread_mutex_unlock(&ksft_print_lock);
 }
 void __test_skip(const char *buf)
 {
 	pthread_mutex_lock(&ksft_print_lock);
-	ksft_test_result_skip(buf);
+	ksft_test_result_skip("%s", buf);
 	pthread_mutex_unlock(&ksft_print_lock);
 }
 

tools/testing/selftests/net/tcp_ao/rst.c

@@ -256,8 +256,6 @@ static int test_wait_fds(int sk[], size_t nr, bool is_writable[],
 
 static void test_client_active_rst(unsigned int port)
 {
-	/* one in queue, another accept()ed */
-	unsigned int wait_for = backlog + 2;
 	int i, sk[3], err;
 	bool is_writable[ARRAY_SIZE(sk)] = {false};
 	unsigned int last = ARRAY_SIZE(sk) - 1;
@@ -275,16 +273,20 @@ static void test_client_active_rst(unsigned int port)
 	for (i = 0; i < last; i++) {
 		err = _test_connect_socket(sk[i], this_ip_dest, port,
 					       (i == 0) ? TEST_TIMEOUT_SEC : -1);
-
 		if (err < 0)
 			test_error("failed to connect()");
 	}
 
-	synchronize_threads(); /* 2: connection accept()ed, another queued */
-	err = test_wait_fds(sk, last, is_writable, wait_for, TEST_TIMEOUT_SEC);
+	synchronize_threads(); /* 2: two connections: one accept()ed, another queued */
+	err = test_wait_fds(sk, last, is_writable, last, TEST_TIMEOUT_SEC);
 	if (err < 0)
 		test_error("test_wait_fds(): %d", err);
 
+	/* async connect() with third sk to get into request_sock_queue */
+	err = _test_connect_socket(sk[last], this_ip_dest, port, -1);
+	if (err < 0)
+		test_error("failed to connect()");
+
 	synchronize_threads(); /* 3: close listen socket */
 	if (test_client_verify(sk[0], packet_sz, quota / packet_sz, TEST_TIMEOUT_SEC))
 		test_fail("Failed to send data on connected socket");
@@ -292,13 +294,14 @@ static void test_client_active_rst(unsigned int port)
 		test_ok("Verified established tcp connection");
 
 	synchronize_threads(); /* 4: finishing up */
-	err = _test_connect_socket(sk[last], this_ip_dest, port, -1);
-	if (err < 0)
-		test_error("failed to connect()");
 
 	synchronize_threads(); /* 5: closed active sk */
-	err = test_wait_fds(sk, ARRAY_SIZE(sk), NULL,
-			    wait_for, TEST_TIMEOUT_SEC);
+	/*
+	 * Wait for 2 connections: one accepted, another in the accept queue,
+	 * the one in request_sock_queue won't get fully established, so
+	 * doesn't receive an active RST, see inet_csk_listen_stop().
+	 */
+	err = test_wait_fds(sk, last, NULL, last, TEST_TIMEOUT_SEC);
 	if (err < 0)
 		test_error("select(): %d", err);
 

tools/testing/selftests/net/tcp_ao/setsockopt-closed.c

@@ -21,7 +21,7 @@ static void make_listen(int sk)
 static void test_vefify_ao_info(int sk, struct tcp_ao_info_opt *info,
 				const char *tst)
 {
-	struct tcp_ao_info_opt tmp;
+	struct tcp_ao_info_opt tmp = {};
 	socklen_t len = sizeof(tmp);
 
 	if (getsockopt(sk, IPPROTO_TCP, TCP_AO_INFO, &tmp, &len))

tools/testing/selftests/net/udpgso.c

@@ -34,7 +34,7 @@
 #endif
 
 #ifndef UDP_MAX_SEGMENTS
-#define UDP_MAX_SEGMENTS	(1 << 6UL)
+#define UDP_MAX_SEGMENTS	(1 << 7UL)
 #endif
 
 #define CONST_MTU_TEST	1500

tools/testing/selftests/powerpc/papr_vpd/papr_vpd.c

@@ -154,7 +154,7 @@ static int dev_papr_vpd_null_handle(void)
 static int papr_vpd_close_handle_without_reading(void)
 {
 	const int devfd = open(DEVPATH, O_RDONLY);
-	struct papr_location_code lc;
+	struct papr_location_code lc = { .str = "", };
 	int fd;
 
 	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,

tools/testing/selftests/timers/posix_timers.c

@@ -66,7 +66,7 @@ static int check_diff(struct timeval start, struct timeval end)
 	diff = end.tv_usec - start.tv_usec;
 	diff += (end.tv_sec - start.tv_sec) * USECS_PER_SEC;
 
-	if (abs(diff - DELAY * USECS_PER_SEC) > USECS_PER_SEC / 2) {
+	if (llabs(diff - DELAY * USECS_PER_SEC) > USECS_PER_SEC / 2) {
 		printf("Diff too high: %lld..", diff);
 		return -1;
 	}
@@ -184,80 +184,71 @@ static int check_timer_create(int which)
 	return 0;
 }
 
-int remain;
-__thread int got_signal;
+static pthread_t ctd_thread;
+static volatile int ctd_count, ctd_failed;
 
-static void *distribution_thread(void *arg)
+static void ctd_sighandler(int sig)
 {
-	while (__atomic_load_n(&remain, __ATOMIC_RELAXED));
-	return NULL;
+	if (pthread_self() != ctd_thread)
+		ctd_failed = 1;
+	ctd_count--;
 }
 
-static void distribution_handler(int nr)
+static void *ctd_thread_func(void *arg)
 {
-	if (!__atomic_exchange_n(&got_signal, 1, __ATOMIC_RELAXED))
-		__atomic_fetch_sub(&remain, 1, __ATOMIC_RELAXED);
-}
-
-/*
- * Test that all running threads _eventually_ receive CLOCK_PROCESS_CPUTIME_ID
- * timer signals. This primarily tests that the kernel does not favour any one.
- */
-static int check_timer_distribution(void)
-{
-	int err, i;
-	timer_t id;
-	const int nthreads = 10;
-	pthread_t threads[nthreads];
 	struct itimerspec val = {
 		.it_value.tv_sec = 0,
 		.it_value.tv_nsec = 1000 * 1000,
 		.it_interval.tv_sec = 0,
 		.it_interval.tv_nsec = 1000 * 1000,
 	};
+	timer_t id;
 
-	remain = nthreads + 1;  /* worker threads + this thread */
-	signal(SIGALRM, distribution_handler);
-	err = timer_create(CLOCK_PROCESS_CPUTIME_ID, NULL, &id);
-	if (err < 0) {
-		ksft_perror("Can't create timer");
-		return -1;
-	}
-	err = timer_settime(id, 0, &val, NULL);
-	if (err < 0) {
-		ksft_perror("Can't set timer");
-		return -1;
-	}
+	/* 1/10 seconds to ensure the leader sleeps */
+	usleep(10000);
 
-	for (i = 0; i < nthreads; i++) {
-		err = pthread_create(&threads[i], NULL, distribution_thread,
-				     NULL);
-		if (err) {
-			ksft_print_msg("Can't create thread: %s (%d)\n",
-				       strerror(errno), errno);
-			return -1;
-		}
-	}
+	ctd_count = 100;
+	if (timer_create(CLOCK_PROCESS_CPUTIME_ID, NULL, &id))
+		return "Can't create timer\n";
+	if (timer_settime(id, 0, &val, NULL))
+		return "Can't set timer\n";
 
-	/* Wait for all threads to receive the signal. */
-	while (__atomic_load_n(&remain, __ATOMIC_RELAXED));
+	while (ctd_count > 0 && !ctd_failed)
+		;
 
-	for (i = 0; i < nthreads; i++) {
-		err = pthread_join(threads[i], NULL);
-		if (err) {
-			ksft_print_msg("Can't join thread: %s (%d)\n",
-				       strerror(errno), errno);
-			return -1;
-		}
-	}
+	if (timer_delete(id))
+		return "Can't delete timer\n";
 
-	if (timer_delete(id)) {
-		ksft_perror("Can't delete timer");
-		return -1;
-	}
+	return NULL;
+}
 
-	ksft_test_result_pass("check_timer_distribution\n");
+/*
+ * Test that only the running thread receives the timer signal.
+ */
+static int check_timer_distribution(void)
+{
+	const char *errmsg;
+
+	signal(SIGALRM, ctd_sighandler);
+
+	errmsg = "Can't create thread\n";
+	if (pthread_create(&ctd_thread, NULL, ctd_thread_func, NULL))
+		goto err;
+
+	errmsg = "Can't join thread\n";
+	if (pthread_join(ctd_thread, (void **)&errmsg) || errmsg)
+		goto err;
+
+	if (!ctd_failed)
+		ksft_test_result_pass("check signal distribution\n");
+	else if (ksft_min_kernel_version(6, 3))
+		ksft_test_result_fail("check signal distribution\n");
+	else
+		ksft_test_result_skip("check signal distribution (old kernel)\n");
 	return 0;
+err:
+	ksft_print_msg("%s", errmsg);
+	return -1;
 }
 
 int main(int argc, char **argv)

tools/testing/selftests/timers/valid-adjtimex.c

@@ -21,9 +21,6 @@
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  */
-
-
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
@@ -62,45 +59,47 @@ int clear_time_state(void)
 #define NUM_FREQ_OUTOFRANGE 4
 #define NUM_FREQ_INVALID 2
 
+#define SHIFTED_PPM (1 << 16)
+
 long valid_freq[NUM_FREQ_VALID] = {
-	-499<<16,
-	-450<<16,
-	-400<<16,
-	-350<<16,
-	-300<<16,
-	-250<<16,
-	-200<<16,
-	-150<<16,
-	-100<<16,
-	-75<<16,
-	-50<<16,
-	-25<<16,
-	-10<<16,
-	-5<<16,
-	-1<<16,
+	 -499 * SHIFTED_PPM,
+	 -450 * SHIFTED_PPM,
+	 -400 * SHIFTED_PPM,
+	 -350 * SHIFTED_PPM,
+	 -300 * SHIFTED_PPM,
+	 -250 * SHIFTED_PPM,
+	 -200 * SHIFTED_PPM,
+	 -150 * SHIFTED_PPM,
+	 -100 * SHIFTED_PPM,
+	  -75 * SHIFTED_PPM,
+	  -50 * SHIFTED_PPM,
+	  -25 * SHIFTED_PPM,
+	  -10 * SHIFTED_PPM,
+	   -5 * SHIFTED_PPM,
+	   -1 * SHIFTED_PPM,
 	-1000,
-	1<<16,
-	5<<16,
-	10<<16,
-	25<<16,
-	50<<16,
-	75<<16,
-	100<<16,
-	150<<16,
-	200<<16,
-	250<<16,
-	300<<16,
-	350<<16,
-	400<<16,
-	450<<16,
-	499<<16,
+	    1 * SHIFTED_PPM,
+	    5 * SHIFTED_PPM,
+	   10 * SHIFTED_PPM,
+	   25 * SHIFTED_PPM,
+	   50 * SHIFTED_PPM,
+	   75 * SHIFTED_PPM,
+	  100 * SHIFTED_PPM,
+	  150 * SHIFTED_PPM,
+	  200 * SHIFTED_PPM,
+	  250 * SHIFTED_PPM,
+	  300 * SHIFTED_PPM,
+	  350 * SHIFTED_PPM,
+	  400 * SHIFTED_PPM,
+	  450 * SHIFTED_PPM,
+	  499 * SHIFTED_PPM,
 };
 
 long outofrange_freq[NUM_FREQ_OUTOFRANGE] = {
-	-1000<<16,
-	-550<<16,
-	550<<16,
-	1000<<16,
+	-1000 * SHIFTED_PPM,
+	 -550 * SHIFTED_PPM,
+	  550 * SHIFTED_PPM,
+	 1000 * SHIFTED_PPM,
 };
 
 #define LONG_MAX (~0UL>>1)

tools/testing/selftests/turbostat/defcolumns.py

@@ -0,0 +1,60 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import subprocess
+from shutil import which
+
+turbostat = which('turbostat')
+if turbostat is None:
+	print('Could not find turbostat binary')
+	exit(1)
+
+timeout = which('timeout')
+if timeout is None:
+	print('Could not find timeout binary')
+	exit(1)
+
+proc_turbostat = subprocess.run([turbostat, '--list'], capture_output = True)
+if proc_turbostat.returncode != 0:
+	print(f'turbostat failed with {proc_turbostat.returncode}')
+	exit(1)
+
+#
+# By default --list reports also "usec" and "Time_Of_Day_Seconds" columns
+# which are only visible when running with --debug.
+#
+expected_columns_debug = proc_turbostat.stdout.replace(b',', b'\t').strip()
+expected_columns = expected_columns_debug.replace(b'usec\t', b'').replace(b'Time_Of_Day_Seconds\t', b'').replace(b'X2APIC\t', b'').replace(b'APIC\t', b'')
+
+#
+# Run turbostat with no options for 10 seconds and send SIGINT
+#
+timeout_argv = [timeout, '--preserve-status', '-s', 'SIGINT', '-k', '3', '1s']
+turbostat_argv = [turbostat, '-i', '0.250']
+
+print(f'Running turbostat with {turbostat_argv=}... ', end = '', flush = True)
+proc_turbostat = subprocess.run(timeout_argv + turbostat_argv, capture_output = True)
+if proc_turbostat.returncode != 0:
+	print(f'turbostat failed with {proc_turbostat.returncode}')
+	exit(1)
+actual_columns = proc_turbostat.stdout.split(b'\n')[0]
+if expected_columns != actual_columns:
+	print(f'turbostat column check failed\n{expected_columns=}\n{actual_columns=}')
+	exit(1)
+print('OK')
+
+#
+# Same, but with --debug
+#
+turbostat_argv.append('--debug')
+
+print(f'Running turbostat with {turbostat_argv=}... ', end = '', flush = True)
+proc_turbostat = subprocess.run(timeout_argv + turbostat_argv, capture_output = True)
+if proc_turbostat.returncode != 0:
+	print(f'turbostat failed with {proc_turbostat.returncode}')
+	exit(1)
+actual_columns = proc_turbostat.stdout.split(b'\n')[0]
+if expected_columns_debug != actual_columns:
+	print(f'turbostat column check failed\n{expected_columns_debug=}\n{actual_columns=}')
+	exit(1)
+print('OK')