Merge branch 'for-6.7/cxl-rch-eh' into cxl/next

Restricted CXL Host (RCH) Error Handling undoes the topology munging of
CXL 1.1 to enabled some AER recovery, and lands some base infrastructure
for handling Root-Complex-Event-Collectors (RCECs) with CXL. Include
this long running series finally for v6.7.

10 files changed, 48 insertions, 25 deletions

diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c
index 75acc721c763..ee61fa3a2411 100644
--- a/tools/testing/cxl/test/mem.c
+++ b/tools/testing/cxl/test/mem.c
@@ -1457,10 +1457,8 @@ static int cxl_mock_mem_probe(struct platform_device *pdev)
 
 	cxlds = &mds->cxlds;
 	cxlds->serial = pdev->id;
-	if (is_rcd(pdev)) {
+	if (is_rcd(pdev))
 		cxlds->rcd = true;
-		cxlds->component_reg_phys = CXL_RESOURCE_NONE;
-	}
 
 	rc = cxl_enumerate_cmds(mds);
 	if (rc)
diff --git a/tools/testing/selftests/mm/charge_reserved_hugetlb.sh b/tools/testing/selftests/mm/charge_reserved_hugetlb.sh
index a5cb4b09a46c..0899019a7fcb 100755
--- a/tools/testing/selftests/mm/charge_reserved_hugetlb.sh
+++ b/tools/testing/selftests/mm/charge_reserved_hugetlb.sh
@@ -25,7 +25,7 @@ if [[ "$1" == "-cgroup-v2" ]]; then
 fi
 
 if [[ $cgroup2 ]]; then
-  cgroup_path=$(mount -t cgroup2 | head -1 | awk -e '{print $3}')
+  cgroup_path=$(mount -t cgroup2 | head -1 | awk '{print $3}')
   if [[ -z "$cgroup_path" ]]; then
     cgroup_path=/dev/cgroup/memory
     mount -t cgroup2 none $cgroup_path
@@ -33,7 +33,7 @@ if [[ $cgroup2 ]]; then
   fi
   echo "+hugetlb" >$cgroup_path/cgroup.subtree_control
 else
-  cgroup_path=$(mount -t cgroup | grep ",hugetlb" | awk -e '{print $3}')
+  cgroup_path=$(mount -t cgroup | grep ",hugetlb" | awk '{print $3}')
   if [[ -z "$cgroup_path" ]]; then
     cgroup_path=/dev/cgroup/memory
     mount -t cgroup memory,hugetlb $cgroup_path
diff --git a/tools/testing/selftests/mm/hugetlb_reparenting_test.sh b/tools/testing/selftests/mm/hugetlb_reparenting_test.sh
index bf2d2a684edf..14d26075c863 100755
--- a/tools/testing/selftests/mm/hugetlb_reparenting_test.sh
+++ b/tools/testing/selftests/mm/hugetlb_reparenting_test.sh
@@ -20,7 +20,7 @@ fi
 
 
 if [[ $cgroup2 ]]; then
-  CGROUP_ROOT=$(mount -t cgroup2 | head -1 | awk -e '{print $3}')
+  CGROUP_ROOT=$(mount -t cgroup2 | head -1 | awk '{print $3}')
   if [[ -z "$CGROUP_ROOT" ]]; then
     CGROUP_ROOT=/dev/cgroup/memory
     mount -t cgroup2 none $CGROUP_ROOT
@@ -28,7 +28,7 @@ if [[ $cgroup2 ]]; then
   fi
   echo "+hugetlb +memory" >$CGROUP_ROOT/cgroup.subtree_control
 else
-  CGROUP_ROOT=$(mount -t cgroup | grep ",hugetlb" | awk -e '{print $3}')
+  CGROUP_ROOT=$(mount -t cgroup | grep ",hugetlb" | awk '{print $3}')
   if [[ -z "$CGROUP_ROOT" ]]; then
     CGROUP_ROOT=/dev/cgroup/memory
     mount -t cgroup memory,hugetlb $CGROUP_ROOT
diff --git a/tools/testing/selftests/powerpc/Makefile b/tools/testing/selftests/powerpc/Makefile
index 49f2ad1793fd..7ea42fa02eab 100644
--- a/tools/testing/selftests/powerpc/Makefile
+++ b/tools/testing/selftests/powerpc/Makefile
@@ -59,12 +59,11 @@ override define INSTALL_RULE
 	done;
 endef
 
-override define EMIT_TESTS
+emit_tests:
 	+@for TARGET in $(SUB_DIRS); do \
 		BUILD_TARGET=$(OUTPUT)/$$TARGET;	\
-		$(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests;\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET $@;\
 	done;
-endef
 
 override define CLEAN
 	+@for TARGET in $(SUB_DIRS); do \
@@ -77,4 +76,4 @@ endef
 tags:
 	find . -name '*.c' -o -name '*.h' | xargs ctags
 
-.PHONY: tags $(SUB_DIRS)
+.PHONY: tags $(SUB_DIRS) emit_tests
diff --git a/tools/testing/selftests/powerpc/pmu/Makefile b/tools/testing/selftests/powerpc/pmu/Makefile
index 2b95e44d20ff..a284fa874a9f 100644
--- a/tools/testing/selftests/powerpc/pmu/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/Makefile
@@ -30,13 +30,14 @@ override define RUN_TESTS
 	+TARGET=event_code_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests
 endef
 
-DEFAULT_EMIT_TESTS := $(EMIT_TESTS)
-override define EMIT_TESTS
-	$(DEFAULT_EMIT_TESTS)
+emit_tests:
+	for TEST in $(TEST_GEN_PROGS); do \
+		BASENAME_TEST=`basename $$TEST`;	\
+		echo "$(COLLECTION):$$BASENAME_TEST";	\
+	done
 	+TARGET=ebb; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests
 	+TARGET=sampling_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests
 	+TARGET=event_code_tests; BUILD_TARGET=$$OUTPUT/$$TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -s -C $$TARGET emit_tests
-endef
 
 DEFAULT_INSTALL_RULE := $(INSTALL_RULE)
 override define INSTALL_RULE
@@ -64,4 +65,4 @@ sampling_tests:
 event_code_tests:
 	TARGET=$@; BUILD_TARGET=$$OUTPUT/$$TARGET; mkdir -p $$BUILD_TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -k -C $$TARGET all
 
-.PHONY: all run_tests ebb sampling_tests event_code_tests
+.PHONY: all run_tests ebb sampling_tests event_code_tests emit_tests
diff --git a/tools/testing/selftests/user_events/abi_test.c b/tools/testing/selftests/user_events/abi_test.c
index 22374d29ffdd..8202f1327c39 100644
--- a/tools/testing/selftests/user_events/abi_test.c
+++ b/tools/testing/selftests/user_events/abi_test.c
@@ -91,16 +91,18 @@ static int reg_disable(long *enable, int bit)
 
 FIXTURE(user) {
 	long check;
+	bool umount;
 };
 
 FIXTURE_SETUP(user) {
-	USER_EVENT_FIXTURE_SETUP(return);
+	USER_EVENT_FIXTURE_SETUP(return, self->umount);
 
 	change_event(false);
 	self->check = 0;
 }
 
 FIXTURE_TEARDOWN(user) {
+	USER_EVENT_FIXTURE_TEARDOWN(self->umount);
 }
 
 TEST_F(user, enablement) {
diff --git a/tools/testing/selftests/user_events/dyn_test.c b/tools/testing/selftests/user_events/dyn_test.c
index 32c827a52d7d..a85980190bea 100644
--- a/tools/testing/selftests/user_events/dyn_test.c
+++ b/tools/testing/selftests/user_events/dyn_test.c
@@ -144,13 +144,16 @@ do { \
 
 FIXTURE(user) {
 	int check;
+	bool umount;
 };
 
 FIXTURE_SETUP(user) {
-	USER_EVENT_FIXTURE_SETUP(return);
+	USER_EVENT_FIXTURE_SETUP(return, self->umount);
 }
 
 FIXTURE_TEARDOWN(user) {
+	USER_EVENT_FIXTURE_TEARDOWN(self->umount);
+
 	wait_for_delete();
 }
 
diff --git a/tools/testing/selftests/user_events/ftrace_test.c b/tools/testing/selftests/user_events/ftrace_test.c
index 6a260caeeddc..dcd7509fe2e0 100644
--- a/tools/testing/selftests/user_events/ftrace_test.c
+++ b/tools/testing/selftests/user_events/ftrace_test.c
@@ -204,10 +204,11 @@ FIXTURE(user) {
 	int data_fd;
 	int enable_fd;
 	int check;
+	bool umount;
 };
 
 FIXTURE_SETUP(user) {
-	USER_EVENT_FIXTURE_SETUP(return);
+	USER_EVENT_FIXTURE_SETUP(return, self->umount);
 
 	self->status_fd = open(status_file, O_RDONLY);
 	ASSERT_NE(-1, self->status_fd);
@@ -219,6 +220,8 @@ FIXTURE_SETUP(user) {
 }
 
 FIXTURE_TEARDOWN(user) {
+	USER_EVENT_FIXTURE_TEARDOWN(self->umount);
+
 	close(self->status_fd);
 	close(self->data_fd);
 
diff --git a/tools/testing/selftests/user_events/perf_test.c b/tools/testing/selftests/user_events/perf_test.c
index f893398cda05..5288e768b207 100644
--- a/tools/testing/selftests/user_events/perf_test.c
+++ b/tools/testing/selftests/user_events/perf_test.c
@@ -111,16 +111,19 @@ static int clear(int *check)
 FIXTURE(user) {
 	int data_fd;
 	int check;
+	bool umount;
 };
 
 FIXTURE_SETUP(user) {
-	USER_EVENT_FIXTURE_SETUP(return);
+	USER_EVENT_FIXTURE_SETUP(return, self->umount);
 
 	self->data_fd = open(data_file, O_RDWR);
 	ASSERT_NE(-1, self->data_fd);
 }
 
 FIXTURE_TEARDOWN(user) {
+	USER_EVENT_FIXTURE_TEARDOWN(self->umount);
+
 	close(self->data_fd);
 
 	if (clear(&self->check) != 0)
diff --git a/tools/testing/selftests/user_events/user_events_selftests.h b/tools/testing/selftests/user_events/user_events_selftests.h
index 690378942f82..e1c3c063c031 100644
--- a/tools/testing/selftests/user_events/user_events_selftests.h
+++ b/tools/testing/selftests/user_events/user_events_selftests.h
@@ -11,13 +11,19 @@
 
 #include "../kselftest.h"
 
-static inline bool tracefs_enabled(char **message, bool *fail)
+static inline void tracefs_unmount(void)
+{
+	umount("/sys/kernel/tracing");
+}
+
+static inline bool tracefs_enabled(char **message, bool *fail, bool *umount)
 {
 	struct stat buf;
 	int ret;
 
 	*message = "";
 	*fail = false;
+	*umount = false;
 
 	/* Ensure tracefs is installed */
 	ret = stat("/sys/kernel/tracing", &buf);
@@ -37,6 +43,8 @@ static inline bool tracefs_enabled(char **message, bool *fail)
 			return false;
 		}
 
+		*umount = true;
+
 		ret = stat("/sys/kernel/tracing/README", &buf);
 	}
 
@@ -49,13 +57,14 @@ static inline bool tracefs_enabled(char **message, bool *fail)
 	return true;
 }
 
-static inline bool user_events_enabled(char **message, bool *fail)
+static inline bool user_events_enabled(char **message, bool *fail, bool *umount)
 {
 	struct stat buf;
 	int ret;
 
 	*message = "";
 	*fail = false;
+	*umount = false;
 
 	if (getuid() != 0) {
 		*message = "Must be run as root";
@@ -63,7 +72,7 @@ static inline bool user_events_enabled(char **message, bool *fail)
 		return false;
 	}
 
-	if (!tracefs_enabled(message, fail))
+	if (!tracefs_enabled(message, fail, umount))
 		return false;
 
 	/* Ensure user_events is installed */
@@ -85,10 +94,10 @@ static inline bool user_events_enabled(char **message, bool *fail)
 	return true;
 }
 
-#define USER_EVENT_FIXTURE_SETUP(statement) do { \
+#define USER_EVENT_FIXTURE_SETUP(statement, umount) do { \
 	char *message; \
 	bool fail; \
-	if (!user_events_enabled(&message, &fail)) { \
+	if (!user_events_enabled(&message, &fail, &(umount))) { \
 		if (fail) { \
 			TH_LOG("Setup failed due to: %s", message); \
 			ASSERT_FALSE(fail); \
@@ -97,4 +106,9 @@ static inline bool user_events_enabled(char **message, bool *fail)
 	} \
 } while (0)
 
+#define USER_EVENT_FIXTURE_TEARDOWN(umount) do { \
+	if ((umount))  \
+		tracefs_unmount(); \
+} while (0)
+
 #endif /* _USER_EVENTS_SELFTESTS_H */