Merge tag 'v4.17-rc5' into irq/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

34 files changed, 245 insertions, 107 deletions

diff --git a/tools/arch/arm/include/uapi/asm/kvm.h b/tools/arch/arm/include/uapi/asm/kvm.h
index 2ba95d6fe852..caae4843cb70 100644
--- a/tools/arch/arm/include/uapi/asm/kvm.h
+++ b/tools/arch/arm/include/uapi/asm/kvm.h
@@ -195,6 +195,12 @@ struct kvm_arch_memory_slot {
 #define KVM_REG_ARM_VFP_FPINST          0x1009
 #define KVM_REG_ARM_VFP_FPINST2         0x100A
 
+/* KVM-as-firmware specific pseudo-registers */
+#define KVM_REG_ARM_FW                  (0x0014 << KVM_REG_ARM_COPROC_SHIFT)
+#define KVM_REG_ARM_FW_REG(r)           (KVM_REG_ARM | KVM_REG_SIZE_U64 | \
+                                         KVM_REG_ARM_FW | ((r) & 0xffff))
+#define KVM_REG_ARM_PSCI_VERSION        KVM_REG_ARM_FW_REG(0)
+
 /* Device Control API: ARM VGIC */
 #define KVM_DEV_ARM_VGIC_GRP_ADDR       0
 #define KVM_DEV_ARM_VGIC_GRP_DIST_REGS  1
diff --git a/tools/arch/arm64/include/uapi/asm/kvm.h b/tools/arch/arm64/include/uapi/asm/kvm.h
index 9abbf3044654..04b3256f8e6d 100644
--- a/tools/arch/arm64/include/uapi/asm/kvm.h
+++ b/tools/arch/arm64/include/uapi/asm/kvm.h
@@ -206,6 +206,12 @@ struct kvm_arch_memory_slot {
 #define KVM_REG_ARM_TIMER_CNT           ARM64_SYS_REG(3, 3, 14, 3, 2)
 #define KVM_REG_ARM_TIMER_CVAL          ARM64_SYS_REG(3, 3, 14, 0, 2)
 
+/* KVM-as-firmware specific pseudo-registers */
+#define KVM_REG_ARM_FW                  (0x0014 << KVM_REG_ARM_COPROC_SHIFT)
+#define KVM_REG_ARM_FW_REG(r)           (KVM_REG_ARM64 | KVM_REG_SIZE_U64 | \
+                                         KVM_REG_ARM_FW | ((r) & 0xffff))
+#define KVM_REG_ARM_PSCI_VERSION        KVM_REG_ARM_FW_REG(0)
+
 /* Device Control API: ARM VGIC */
 #define KVM_DEV_ARM_VGIC_GRP_ADDR       0
 #define KVM_DEV_ARM_VGIC_GRP_DIST_REGS  1
diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h
index d554c11e01ff..578793e97431 100644
--- a/tools/arch/x86/include/asm/cpufeatures.h
+++ b/tools/arch/x86/include/asm/cpufeatures.h
@@ -320,6 +320,7 @@
 #define X86_FEATURE_AVX512_VPOPCNTDQ    (16*32+14) /* POPCNT for vectors of DW/QW */
 #define X86_FEATURE_LA57                (16*32+16) /* 5-level page tables */
 #define X86_FEATURE_RDPID               (16*32+22) /* RDPID instruction */
+#define X86_FEATURE_CLDEMOTE            (16*32+25) /* CLDEMOTE instruction */
 
 /* AMD-defined CPU features, CPUID level 0x80000007 (EBX), word 17 */
 #define X86_FEATURE_OVERFLOW_RECOV      (17*32+ 0) /* MCA overflow recovery support */
diff --git a/tools/bpf/Makefile b/tools/bpf/Makefile
index 1ea545965ee3..53b60ad452f5 100644
--- a/tools/bpf/Makefile
+++ b/tools/bpf/Makefile
@@ -76,6 +76,8 @@ $(OUTPUT)bpf_asm: $(OUTPUT)bpf_asm.o $(OUTPUT)bpf_exp.yacc.o $(OUTPUT)bpf_exp.le
         $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^
 
 $(OUTPUT)bpf_exp.lex.c: $(OUTPUT)bpf_exp.yacc.c
+$(OUTPUT)bpf_exp.yacc.o: $(OUTPUT)bpf_exp.yacc.c
+$(OUTPUT)bpf_exp.lex.o: $(OUTPUT)bpf_exp.lex.c
 
 clean: bpftool_clean
         $(call QUIET_CLEAN, bpf-progs)
diff --git a/tools/bpf/bpf_dbg.c b/tools/bpf/bpf_dbg.c
index 4f254bcc4423..61b9aa5d6415 100644
--- a/tools/bpf/bpf_dbg.c
+++ b/tools/bpf/bpf_dbg.c
@@ -1063,7 +1063,7 @@ static int cmd_load_pcap(char *file)
 
 static int cmd_load(char *arg)
 {
-        char *subcmd, *cont, *tmp = strdup(arg);
+        char *subcmd, *cont = NULL, *tmp = strdup(arg);
         int ret = CMD_OK;
 
         subcmd = strtok_r(tmp, " ", &cont);
@@ -1073,7 +1073,10 @@ static int cmd_load(char *arg)
                 bpf_reset();
                 bpf_reset_breakpoints();
 
-                ret = cmd_load_bpf(cont);
+                if (!cont)
+                        ret = CMD_ERR;
+                else
+                        ret = cmd_load_bpf(cont);
         } else if (matches(subcmd, "pcap") == 0) {
                 ret = cmd_load_pcap(cont);
         } else {
diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
index 1065006c9bf5..b02c41e53d56 100644
--- a/tools/include/uapi/linux/kvm.h
+++ b/tools/include/uapi/linux/kvm.h
@@ -676,6 +676,13 @@ struct kvm_ioeventfd {
         __u8  pad[36];
 };
 
+#define KVM_X86_DISABLE_EXITS_MWAIT          (1 << 0)
+#define KVM_X86_DISABLE_EXITS_HTL            (1 << 1)
+#define KVM_X86_DISABLE_EXITS_PAUSE          (1 << 2)
+#define KVM_X86_DISABLE_VALID_EXITS          (KVM_X86_DISABLE_EXITS_MWAIT | \
+                                              KVM_X86_DISABLE_EXITS_HTL | \
+                                              KVM_X86_DISABLE_EXITS_PAUSE)
+
 /* for KVM_ENABLE_CAP */
 struct kvm_enable_cap {
         /* in */
diff --git a/tools/perf/Documentation/perf-mem.txt b/tools/perf/Documentation/perf-mem.txt
index 8806ed5f3802..f8d2167cf3e7 100644
--- a/tools/perf/Documentation/perf-mem.txt
+++ b/tools/perf/Documentation/perf-mem.txt
@@ -28,29 +28,46 @@ OPTIONS
 <command>...::
         Any command you can specify in a shell.
 
+-i::
+--input=<file>::
+        Input file name.
+
 -f::
 --force::
         Don't do ownership validation
 
 -t::
---type=::
+--type=<type>::
         Select the memory operation type: load or store (default: load,store)
 
 -D::
---dump-raw-samples=::
+--dump-raw-samples::
         Dump the raw decoded samples on the screen in a format that is easy to parse with
         one sample per line.
 
 -x::
---field-separator::
+--field-separator=<separator>::
         Specify the field separator used when dump raw samples (-D option). By default,
         The separator is the space character.
 
 -C::
---cpu-list::
-        Restrict dump of raw samples to those provided via this option. Note that the same
-        option can be passed in record mode. It will be interpreted the same way as perf
-        record.
+--cpu=<cpu>::
+        Monitor only on the list of CPUs provided. Multiple CPUs can be provided as a
+        comma-separated list with no space: 0,1. Ranges of CPUs are specified with -: 0-2. Default
+        is to monitor all CPUS.
+-U::
+--hide-unresolved::
+        Only display entries resolved to a symbol.
+
+-p::
+--phys-data::
+        Record/Report sample physical addresses
+
+RECORD OPTIONS
+--------------
+-e::
+--event <event>::
+        Event selector. Use 'perf mem record -e list' to list available events.
 
 -K::
 --all-kernel::
@@ -60,12 +77,12 @@ OPTIONS
 --all-user::
         Configure all used events to run in user space.
 
---ldload::
-        Specify desired latency for loads event.
+-v::
+--verbose::
+        Be more verbose (show counter open errors, etc)
 
--p::
---phys-data::
-        Record/Report sample physical addresses
+--ldlat <n>::
+        Specify desired latency for loads event.
 
 In addition, for report all perf report options are valid, and for record
 all perf record options.
diff --git a/tools/perf/arch/s390/util/auxtrace.c b/tools/perf/arch/s390/util/auxtrace.c
index 6cb48e4cffd9..3afe8256eff2 100644
--- a/tools/perf/arch/s390/util/auxtrace.c
+++ b/tools/perf/arch/s390/util/auxtrace.c
@@ -87,6 +87,7 @@ struct auxtrace_record *auxtrace_record__init(struct perf_evlist *evlist,
         struct perf_evsel *pos;
         int diagnose = 0;
 
+        *err = 0;
         if (evlist->nr_entries == 0)
                 return NULL;
 
diff --git a/tools/perf/arch/s390/util/header.c b/tools/perf/arch/s390/util/header.c
index a4c30f1c70be..163b92f33998 100644
--- a/tools/perf/arch/s390/util/header.c
+++ b/tools/perf/arch/s390/util/header.c
@@ -146,21 +146,3 @@ char *get_cpuid_str(struct perf_pmu *pmu __maybe_unused)
                 zfree(&buf);
         return buf;
 }
-
-/*
- * Compare the cpuid string returned by get_cpuid() function
- * with the name generated by the jevents file read from
- * pmu-events/arch/s390/mapfile.csv.
- *
- * Parameter mapcpuid is the cpuid as stored in the
- * pmu-events/arch/s390/mapfile.csv. This is just the type number.
- * Parameter cpuid is the cpuid returned by function get_cpuid().
- */
-int strcmp_cpuid_str(const char *mapcpuid, const char *cpuid)
-{
-        char *cp = strchr(cpuid, ',');
-
-        if (cp == NULL)
-                return -1;
-        return strncmp(cp + 1, mapcpuid, strlen(mapcpuid));
-}
diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index 944070e98a2c..63eb49082774 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -175,7 +175,7 @@ static const struct option options[] = {
         OPT_UINTEGER('s', "nr_secs"     , &p0.nr_secs,          "max number of seconds to run (default: 5 secs)"),
         OPT_UINTEGER('u', "usleep"      , &p0.sleep_usecs,      "usecs to sleep per loop iteration"),
 
-        OPT_BOOLEAN('R', "data_reads"   , &p0.data_reads,       "access the data via writes (can be mixed with -W)"),
+        OPT_BOOLEAN('R', "data_reads"   , &p0.data_reads,       "access the data via reads (can be mixed with -W)"),
         OPT_BOOLEAN('W', "data_writes"  , &p0.data_writes,      "access the data via writes (can be mixed with -R)"),
         OPT_BOOLEAN('B', "data_backwards", &p0.data_backwards,  "access the data backwards as well"),
         OPT_BOOLEAN('Z', "data_zero_memset", &p0.data_zero_memset,"access the data via glibc bzero only"),
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 147a27e8c937..f17dc601b0f3 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -172,6 +172,7 @@ static bool			interval_count;
 static const char               *output_name;
 static int                      output_fd;
 static int                      print_free_counters_hint;
+static int                      print_mixed_hw_group_error;
 
 struct perf_stat {
         bool                     record;
@@ -1126,6 +1127,30 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
                 fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
 }
 
+static bool is_mixed_hw_group(struct perf_evsel *counter)
+{
+        struct perf_evlist *evlist = counter->evlist;
+        u32 pmu_type = counter->attr.type;
+        struct perf_evsel *pos;
+
+        if (counter->nr_members < 2)
+                return false;
+
+        evlist__for_each_entry(evlist, pos) {
+                /* software events can be part of any hardware group */
+                if (pos->attr.type == PERF_TYPE_SOFTWARE)
+                        continue;
+                if (pmu_type == PERF_TYPE_SOFTWARE) {
+                        pmu_type = pos->attr.type;
+                        continue;
+                }
+                if (pmu_type != pos->attr.type)
+                        return true;
+        }
+
+        return false;
+}
+
 static void printout(int id, int nr, struct perf_evsel *counter, double uval,
                      char *prefix, u64 run, u64 ena, double noise,
                      struct runtime_stat *st)
@@ -1178,8 +1203,11 @@ static void printout(int id, int nr, struct perf_evsel *counter, double uval,
                         counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
                         csv_sep);
 
-                if (counter->supported)
+                if (counter->supported) {
                         print_free_counters_hint = 1;
+                        if (is_mixed_hw_group(counter))
+                                print_mixed_hw_group_error = 1;
+                }
 
                 fprintf(stat_config.output, "%-*s%s",
                         csv_output ? 0 : unit_width,
@@ -1256,7 +1284,8 @@ static void uniquify_event_name(struct perf_evsel *counter)
         char *new_name;
         char *config;
 
-        if (!counter->pmu_name || !strncmp(counter->name, counter->pmu_name,
+        if (counter->uniquified_name ||
+            !counter->pmu_name || !strncmp(counter->name, counter->pmu_name,
                                            strlen(counter->pmu_name)))
                 return;
 
@@ -1274,6 +1303,8 @@ static void uniquify_event_name(struct perf_evsel *counter)
                         counter->name = new_name;
                 }
         }
+
+        counter->uniquified_name = true;
 }
 
 static void collect_all_aliases(struct perf_evsel *counter,
@@ -1757,6 +1788,11 @@ static void print_footer(void)
 "       echo 0 > /proc/sys/kernel/nmi_watchdog\n"
 "       perf stat ...\n"
 "       echo 1 > /proc/sys/kernel/nmi_watchdog\n");
+
+        if (print_mixed_hw_group_error)
+                fprintf(output,
+                        "The events in group usually have to be from "
+                        "the same PMU. Try reorganizing the group.\n");
 }
 
 static void print_counters(struct timespec *ts, int argc, const char **argv)
diff --git a/tools/perf/pmu-events/arch/s390/mapfile.csv b/tools/perf/pmu-events/arch/s390/mapfile.csv
index ca7682748a4b..78bcf7f8e206 100644
--- a/tools/perf/pmu-events/arch/s390/mapfile.csv
+++ b/tools/perf/pmu-events/arch/s390/mapfile.csv
@@ -1,6 +1,6 @@
 Family-model,Version,Filename,EventType
-209[78],1,cf_z10,core
-281[78],1,cf_z196,core
-282[78],1,cf_zec12,core
-296[45],1,cf_z13,core
-3906,3,cf_z14,core
+^IBM.209[78].*[13]\.[1-5].[[:xdigit:]]+$,1,cf_z10,core
+^IBM.281[78].*[13]\.[1-5].[[:xdigit:]]+$,1,cf_z196,core
+^IBM.282[78].*[13]\.[1-5].[[:xdigit:]]+$,1,cf_zec12,core
+^IBM.296[45].*[13]\.[1-5].[[:xdigit:]]+$,1,cf_z13,core
+^IBM.390[67].*[13]\.[1-5].[[:xdigit:]]+$,3,cf_z14,core
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 93656f2fd53a..7e3cce3bcf3b 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -29,7 +29,6 @@ GenuineIntel-6-4D,v13,silvermont,core
 GenuineIntel-6-4C,v13,silvermont,core
 GenuineIntel-6-2A,v15,sandybridge,core
 GenuineIntel-6-2C,v2,westmereep-dp,core
-GenuineIntel-6-2C,v2,westmereep-dp,core
 GenuineIntel-6-25,v2,westmereep-sp,core
 GenuineIntel-6-2F,v2,westmereex,core
 GenuineIntel-6-55,v1,skylakex,core
diff --git a/tools/perf/tests/attr/test-record-group-sampling b/tools/perf/tests/attr/test-record-group-sampling
index f906b793196f..8a33ca4f9e1f 100644
--- a/tools/perf/tests/attr/test-record-group-sampling
+++ b/tools/perf/tests/attr/test-record-group-sampling
@@ -35,3 +35,6 @@ inherit=0
 # sampling disabled
 sample_freq=0
 sample_period=0
+freq=0
+write_backward=0
+sample_id_all=0
diff --git a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
index 1ecc1f0ff84a..016882dbbc16 100755
--- a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
+++ b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
@@ -19,12 +19,10 @@ trace_libc_inet_pton_backtrace() {
         expected[1]=".*inet_pton[[:space:]]\($libc\)$"
         case "$(uname -m)" in
         s390x)
-                eventattr='call-graph=dwarf'
+                eventattr='call-graph=dwarf,max-stack=4'
                 expected[2]="gaih_inet.*[[:space:]]\($libc|inlined\)$"
-                expected[3]="__GI_getaddrinfo[[:space:]]\($libc|inlined\)$"
+                expected[3]="(__GI_)?getaddrinfo[[:space:]]\($libc|inlined\)$"
                 expected[4]="main[[:space:]]\(.*/bin/ping.*\)$"
-                expected[5]="__libc_start_main[[:space:]]\($libc\)$"
-                expected[6]="_start[[:space:]]\(.*/bin/ping.*\)$"
                 ;;
         *)
                 eventattr='max-stack=3'
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 3e87486c28fe..4cd2cf93f726 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -930,8 +930,11 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts,
          * than leader in case leader 'leads' the sampling.
          */
         if ((leader != evsel) && leader->sample_read) {
-                attr->sample_freq   = 0;
-                attr->sample_period = 0;
+                attr->freq           = 0;
+                attr->sample_freq    = 0;
+                attr->sample_period  = 0;
+                attr->write_backward = 0;
+                attr->sample_id_all  = 0;
         }
 
         if (opts->no_samples)
@@ -1922,7 +1925,8 @@ try_fallback:
                 goto fallback_missing_features;
         } else if (!perf_missing_features.group_read &&
                     evsel->attr.inherit &&
-                   (evsel->attr.read_format & PERF_FORMAT_GROUP)) {
+                   (evsel->attr.read_format & PERF_FORMAT_GROUP) &&
+                   perf_evsel__is_group_leader(evsel)) {
                 perf_missing_features.group_read = true;
                 pr_debug2("switching off group read\n");
                 goto fallback_missing_features;
@@ -2754,8 +2758,14 @@ bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
                    (paranoid = perf_event_paranoid()) > 1) {
                 const char *name = perf_evsel__name(evsel);
                 char *new_name;
+                const char *sep = ":";
 
-                if (asprintf(&new_name, "%s%su", name, strchr(name, ':') ? "" : ":") < 0)
+                /* Is there already the separator in the name. */
+                if (strchr(name, '/') ||
+                    strchr(name, ':'))
+                        sep = "";
+
+                if (asprintf(&new_name, "%s%su", name, sep) < 0)
                         return false;
 
                 if (evsel->name)
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index d3ee3af618ef..92ec009a292d 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -115,6 +115,7 @@ struct perf_evsel {
         unsigned int            sample_size;
         int                     id_pos;
         int                     is_pos;
+        bool                    uniquified_name;
         bool                    snapshot;
         bool                    supported;
         bool                    needs_swap;
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 2eca8478e24f..32d50492505d 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1019,13 +1019,6 @@ int machine__load_vmlinux_path(struct machine *machine, enum map_type type)
         return ret;
 }
 
-static void map_groups__fixup_end(struct map_groups *mg)
-{
-        int i;
-        for (i = 0; i < MAP__NR_TYPES; ++i)
-                __map_groups__fixup_end(mg, i);
-}
-
 static char *get_kernel_version(const char *root_dir)
 {
         char version[PATH_MAX];
@@ -1233,6 +1226,7 @@ int machine__create_kernel_maps(struct machine *machine)
 {
         struct dso *kernel = machine__get_kernel(machine);
         const char *name = NULL;
+        struct map *map;
         u64 addr = 0;
         int ret;
 
@@ -1259,13 +1253,25 @@ int machine__create_kernel_maps(struct machine *machine)
                         machine__destroy_kernel_maps(machine);
                         return -1;
                 }
-                machine__set_kernel_mmap(machine, addr, 0);
+
+                /* we have a real start address now, so re-order the kmaps */
+                map = machine__kernel_map(machine);
+
+                map__get(map);
+                map_groups__remove(&machine->kmaps, map);
+
+                /* assume it's the last in the kmaps */
+                machine__set_kernel_mmap(machine, addr, ~0ULL);
+
+                map_groups__insert(&machine->kmaps, map);
+                map__put(map);
         }
 
-        /*
-         * Now that we have all the maps created, just set the ->end of them:
-         */
-        map_groups__fixup_end(&machine->kmaps);
+        /* update end address of the kernel map using adjacent module address */
+        map = map__next(machine__kernel_map(machine));
+        if (map)
+                machine__set_kernel_mmap(machine, addr, map->start);
+
         return 0;
 }
 
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 61a5e5027338..d2fb597c9a8c 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -539,9 +539,10 @@ static bool pmu_is_uncore(const char *name)
 
 /*
  *  PMU CORE devices have different name other than cpu in sysfs on some
- *  platforms. looking for possible sysfs files to identify as core device.
+ *  platforms.
+ *  Looking for possible sysfs files to identify the arm core device.
  */
-static int is_pmu_core(const char *name)
+static int is_arm_pmu_core(const char *name)
 {
         struct stat st;
         char path[PATH_MAX];
@@ -550,12 +551,6 @@ static int is_pmu_core(const char *name)
         if (!sysfs)
                 return 0;
 
-        /* Look for cpu sysfs (x86 and others) */
-        scnprintf(path, PATH_MAX, "%s/bus/event_source/devices/cpu", sysfs);
-        if ((stat(path, &st) == 0) &&
-                        (strncmp(name, "cpu", strlen("cpu")) == 0))
-                return 1;
-
         /* Look for cpu sysfs (specific to arm) */
         scnprintf(path, PATH_MAX, "%s/bus/event_source/devices/%s/cpus",
                                 sysfs, name);
@@ -586,7 +581,7 @@ char * __weak get_cpuid_str(struct perf_pmu *pmu __maybe_unused)
  * cpuid string generated on this platform.
  * Otherwise return non-zero.
  */
-int __weak strcmp_cpuid_str(const char *mapcpuid, const char *cpuid)
+int strcmp_cpuid_str(const char *mapcpuid, const char *cpuid)
 {
         regex_t re;
         regmatch_t pmatch[1];
@@ -668,6 +663,7 @@ static void pmu_add_cpu_aliases(struct list_head *head, struct perf_pmu *pmu)
         struct pmu_events_map *map;
         struct pmu_event *pe;
         const char *name = pmu->name;
+        const char *pname;
 
         map = perf_pmu__find_map(pmu);
         if (!map)
@@ -686,11 +682,9 @@ static void pmu_add_cpu_aliases(struct list_head *head, struct perf_pmu *pmu)
                         break;
                 }
 
-                if (!is_pmu_core(name)) {
-                        /* check for uncore devices */
-                        if (pe->pmu == NULL)
-                                continue;
-                        if (strncmp(pe->pmu, name, strlen(pe->pmu)))
+                if (!is_arm_pmu_core(name)) {
+                        pname = pe->pmu ? pe->pmu : "cpu";
+                        if (strncmp(pname, name, strlen(pname)))
                                 continue;
                 }
 
diff --git a/tools/power/acpi/Makefile.config b/tools/power/acpi/Makefile.config
index 2cccbba64418..f304be71c278 100644
--- a/tools/power/acpi/Makefile.config
+++ b/tools/power/acpi/Makefile.config
@@ -56,6 +56,7 @@ INSTALL_SCRIPT = ${INSTALL_PROGRAM}
 # to compile vs uClibc, that can be done here as well.
 CROSS = #/usr/i386-linux-uclibc/usr/bin/i386-uclibc-
 CROSS_COMPILE ?= $(CROSS)
+LD = $(CC)
 HOSTCC = gcc
 
 # check if compiler option is supported
diff --git a/tools/testing/selftests/bpf/.gitignore b/tools/testing/selftests/bpf/.gitignore
index 9cf83f895d98..5e1ab2f0eb79 100644
--- a/tools/testing/selftests/bpf/.gitignore
+++ b/tools/testing/selftests/bpf/.gitignore
@@ -12,3 +12,6 @@ test_tcpbpf_user
 test_verifier_log
 feature
 test_libbpf_open
+test_sock
+test_sock_addr
+urandom_read
diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index faadbe233966..4123d0ab90ba 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -1108,7 +1108,7 @@ static void test_stacktrace_build_id(void)
 
         assert(system("dd if=/dev/urandom of=/dev/zero count=4 2> /dev/null")
                == 0);
-        assert(system("./urandom_read if=/dev/urandom of=/dev/zero count=4 2> /dev/null") == 0);
+        assert(system("./urandom_read") == 0);
         /* disable stack trace collection */
         key = 0;
         val = 1;
@@ -1158,7 +1158,7 @@ static void test_stacktrace_build_id(void)
         } while (bpf_map_get_next_key(stackmap_fd, &previous_key, &key) == 0);
 
         CHECK(build_id_matches < 1, "build id match",
-              "Didn't find expected build ID from the map");
+              "Didn't find expected build ID from the map\n");
 
 disable_pmu:
         ioctl(pmu_fd, PERF_EVENT_IOC_DISABLE);
diff --git a/tools/testing/selftests/bpf/test_sock.c b/tools/testing/selftests/bpf/test_sock.c
index 73bb20cfb9b7..f4d99fabc56d 100644
--- a/tools/testing/selftests/bpf/test_sock.c
+++ b/tools/testing/selftests/bpf/test_sock.c
@@ -13,6 +13,7 @@
 #include <bpf/bpf.h>
 
 #include "cgroup_helpers.h"
+#include "bpf_rlimit.h"
 
 #ifndef ARRAY_SIZE
 # define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
diff --git a/tools/testing/selftests/bpf/test_sock_addr.c b/tools/testing/selftests/bpf/test_sock_addr.c
index d488f20926e8..2950f80ba7fb 100644
--- a/tools/testing/selftests/bpf/test_sock_addr.c
+++ b/tools/testing/selftests/bpf/test_sock_addr.c
@@ -15,6 +15,7 @@
 #include <bpf/libbpf.h>
 
 #include "cgroup_helpers.h"
+#include "bpf_rlimit.h"
 
 #define CG_PATH "/foo"
 #define CONNECT4_PROG_PATH      "./connect4_prog.o"
diff --git a/tools/testing/selftests/bpf/test_sock_addr.sh b/tools/testing/selftests/bpf/test_sock_addr.sh
index c6e1dcf992c4..9832a875a828 100755
--- a/tools/testing/selftests/bpf/test_sock_addr.sh
+++ b/tools/testing/selftests/bpf/test_sock_addr.sh
@@ -4,7 +4,7 @@ set -eu
 
 ping_once()
 {
-        ping -q -c 1 -W 1 ${1%%/*} >/dev/null 2>&1
+        ping -${1} -q -c 1 -W 1 ${2%%/*} >/dev/null 2>&1
 }
 
 wait_for_ip()
@@ -13,7 +13,7 @@ wait_for_ip()
         echo -n "Wait for testing IPv4/IPv6 to become available "
         for _i in $(seq ${MAX_PING_TRIES}); do
                 echo -n "."
-                if ping_once ${TEST_IPv4} && ping_once ${TEST_IPv6}; then
+                if ping_once 4 ${TEST_IPv4} && ping_once 6 ${TEST_IPv6}; then
                         echo " OK"
                         return
                 fi
diff --git a/tools/testing/selftests/firmware/Makefile b/tools/testing/selftests/firmware/Makefile
index 826f38d5dd19..261c81f08606 100644
--- a/tools/testing/selftests/firmware/Makefile
+++ b/tools/testing/selftests/firmware/Makefile
@@ -4,6 +4,7 @@
 all:
 
 TEST_PROGS := fw_run_tests.sh
+TEST_FILES := fw_fallback.sh fw_filesystem.sh fw_lib.sh
 
 include ../lib.mk
 
diff --git a/tools/testing/selftests/firmware/fw_lib.sh b/tools/testing/selftests/firmware/fw_lib.sh
index 9ea31b57d71a..962d7f4ac627 100755
--- a/tools/testing/selftests/firmware/fw_lib.sh
+++ b/tools/testing/selftests/firmware/fw_lib.sh
@@ -154,11 +154,13 @@ test_finish()
         if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
                 echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout
         fi
-        if [ "$OLD_FWPATH" = "" ]; then
-                OLD_FWPATH=" "
-        fi
         if [ "$TEST_REQS_FW_SET_CUSTOM_PATH" = "yes" ]; then
-                echo -n "$OLD_FWPATH" >/sys/module/firmware_class/parameters/path
+                if [ "$OLD_FWPATH" = "" ]; then
+                        # A zero-length write won't work; write a null byte
+                        printf '\000' >/sys/module/firmware_class/parameters/path
+                else
+                        echo -n "$OLD_FWPATH" >/sys/module/firmware_class/parameters/path
+                fi
         fi
         if [ -f $FW ]; then
                 rm -f "$FW"
diff --git a/tools/testing/selftests/firmware/fw_run_tests.sh b/tools/testing/selftests/firmware/fw_run_tests.sh
index 06d638e9dc62..cffdd4eb0a57 100755
--- a/tools/testing/selftests/firmware/fw_run_tests.sh
+++ b/tools/testing/selftests/firmware/fw_run_tests.sh
@@ -66,5 +66,5 @@ if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then
         run_test_config_0003
 else
         echo "Running basic kernel configuration, working with your config"
-        run_test
+        run_tests
 fi
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-extended-error-support.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-extended-error-support.tc
index 786dce7e48be..2aabab363cfb 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-extended-error-support.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-extended-error-support.tc
@@ -29,7 +29,7 @@ do_reset
 
 echo "Test extended error support"
 echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger
-echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_wakeup/trigger &>/dev/null
+! echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_wakeup/trigger 2> /dev/null
 if ! grep -q "ERROR:" events/sched/sched_wakeup/hist; then
     fail "Failed to generate extended error in histogram"
 fi
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-multi-actions-accept.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-multi-actions-accept.tc
new file mode 100644
index 000000000000..c193dce611a2
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-multi-actions-accept.tc
@@ -0,0 +1,44 @@
+#!/bin/sh
+# description: event trigger - test multiple actions on hist trigger
+
+
+do_reset() {
+    reset_trigger
+    echo > set_event
+    clear_trace
+}
+
+fail() { #msg
+    do_reset
+    echo $1
+    exit_fail
+}
+
+if [ ! -f set_event ]; then
+    echo "event tracing is not supported"
+    exit_unsupported
+fi
+
+if [ ! -f synthetic_events ]; then
+    echo "synthetic event is not supported"
+    exit_unsupported
+fi
+
+clear_synthetic_events
+reset_tracer
+do_reset
+
+echo "Test multiple actions on hist trigger"
+echo 'wakeup_latency u64 lat; pid_t pid' >> synthetic_events
+TRIGGER1=events/sched/sched_wakeup/trigger
+TRIGGER2=events/sched/sched_switch/trigger
+
+echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="cyclictest"' > $TRIGGER1
+echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0 if next_comm=="cyclictest"' >> $TRIGGER2
+echo 'hist:keys=next_pid:onmatch(sched.sched_wakeup).wakeup_latency(sched.sched_switch.$wakeup_lat,next_pid) if next_comm=="cyclictest"' >> $TRIGGER2
+echo 'hist:keys=next_pid:onmatch(sched.sched_wakeup).wakeup_latency(sched.sched_switch.$wakeup_lat,prev_pid) if next_comm=="cyclictest"' >> $TRIGGER2
+echo 'hist:keys=next_pid if next_comm=="cyclictest"' >> $TRIGGER2
+
+do_reset
+
+exit 0
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 195e9d4739a9..c1b1a4dc6a96 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -20,10 +20,10 @@ all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
 
 .ONESHELL:
 define RUN_TESTS
-        @export KSFT_TAP_LEVEL=`echo 1`;
-        @test_num=`echo 0`;
-        @echo "TAP version 13";
-        @for TEST in $(1); do                           \
+        @export KSFT_TAP_LEVEL=`echo 1`;                \
+        test_num=`echo 0`;                              \
+        echo "TAP version 13";                          \
+        for TEST in $(1); do                            \
                 BASENAME_TEST=`basename $$TEST`;        \
                 test_num=`echo $$test_num+1 | bc`;      \
                 echo "selftests: $$BASENAME_TEST";      \
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index 8f1e13d2e547..3ff81a478dbe 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -5,7 +5,8 @@ CFLAGS =  -Wall -Wl,--no-as-needed -O2 -g
 CFLAGS += -I../../../../usr/include/
 
 TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh netdevice.sh rtnetlink.sh
-TEST_PROGS += fib_tests.sh fib-onlink-tests.sh in_netns.sh pmtu.sh
+TEST_PROGS += fib_tests.sh fib-onlink-tests.sh pmtu.sh
+TEST_PROGS_EXTENDED := in_netns.sh
 TEST_GEN_FILES =  socket
 TEST_GEN_FILES += psock_fanout psock_tpacket msg_zerocopy
 TEST_GEN_PROGS = reuseport_bpf reuseport_bpf_cpu reuseport_bpf_numa
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/bpf.json b/tools/testing/selftests/tc-testing/tc-tests/actions/bpf.json
index 5b012f4981d4..6f289a49e5ec 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/actions/bpf.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/bpf.json
@@ -66,7 +66,7 @@
         "cmdUnderTest": "$TC action add action bpf object-file _b.o index 667",
         "expExitCode": "0",
         "verifyCmd": "$TC action get action bpf index 667",
-        "matchPattern": "action order [0-9]*: bpf _b.o:\\[action\\] id [0-9]* tag 3b185187f1855c4c default-action pipe.*index 667 ref",
+        "matchPattern": "action order [0-9]*: bpf _b.o:\\[action\\] id [0-9]* tag 3b185187f1855c4c( jited)? default-action pipe.*index 667 ref",
         "matchCount": "1",
         "teardown": [
             "$TC action flush action bpf",
@@ -92,10 +92,15 @@
         "cmdUnderTest": "$TC action add action bpf object-file _c.o index 667",
         "expExitCode": "255",
         "verifyCmd": "$TC action get action bpf index 667",
-        "matchPattern": "action order [0-9]*: bpf _b.o:\\[action\\] id [0-9].*index 667 ref",
+        "matchPattern": "action order [0-9]*: bpf _c.o:\\[action\\] id [0-9].*index 667 ref",
         "matchCount": "0",
         "teardown": [
-            "$TC action flush action bpf",
+            [
+                "$TC action flush action bpf",
+                0,
+                1,
+                255
+            ],
             "rm -f _c.o"
         ]
     },
diff --git a/tools/testing/selftests/x86/test_syscall_vdso.c b/tools/testing/selftests/x86/test_syscall_vdso.c
index 40370354d4c1..c9c3281077bc 100644
--- a/tools/testing/selftests/x86/test_syscall_vdso.c
+++ b/tools/testing/selftests/x86/test_syscall_vdso.c
@@ -100,12 +100,19 @@ asm (
         "       shl     $32, %r8\n"
         "       orq     $0x7f7f7f7f, %r8\n"
         "       movq    %r8, %r9\n"
-        "       movq    %r8, %r10\n"
-        "       movq    %r8, %r11\n"
-        "       movq    %r8, %r12\n"
-        "       movq    %r8, %r13\n"
-        "       movq    %r8, %r14\n"
-        "       movq    %r8, %r15\n"
+        "       incq    %r9\n"
+        "       movq    %r9, %r10\n"
+        "       incq    %r10\n"
+        "       movq    %r10, %r11\n"
+        "       incq    %r11\n"
+        "       movq    %r11, %r12\n"
+        "       incq    %r12\n"
+        "       movq    %r12, %r13\n"
+        "       incq    %r13\n"
+        "       movq    %r13, %r14\n"
+        "       incq    %r14\n"
+        "       movq    %r14, %r15\n"
+        "       incq    %r15\n"
         "       ret\n"
         "       .code32\n"
         "       .popsection\n"
@@ -128,12 +135,13 @@ int check_regs64(void)
         int err = 0;
         int num = 8;
         uint64_t *r64 = &regs64.r8;
+        uint64_t expected = 0x7f7f7f7f7f7f7f7fULL;
 
         if (!kernel_is_64bit)
                 return 0;
 
         do {
-                if (*r64 == 0x7f7f7f7f7f7f7f7fULL)
+                if (*r64 == expected++)
                         continue; /* register did not change */
                 if (syscall_addr != (long)&int80) {
                         /*
@@ -147,18 +155,17 @@ int check_regs64(void)
                                 continue;
                         }
                 } else {
-                        /* INT80 syscall entrypoint can be used by
+                        /*
+                         * INT80 syscall entrypoint can be used by
                          * 64-bit programs too, unlike SYSCALL/SYSENTER.
                          * Therefore it must preserve R12+
                          * (they are callee-saved registers in 64-bit C ABI).
                          *
-                         * This was probably historically not intended,
-                         * but R8..11 are clobbered (cleared to 0).
-                         * IOW: they are the only registers which aren't
-                         * preserved across INT80 syscall.
+                         * Starting in Linux 4.17 (and any kernel that
+                         * backports the change), R8..11 are preserved.
+                         * Historically (and probably unintentionally), they
+                         * were clobbered or zeroed.
                          */
-                        if (*r64 == 0 && num <= 11)
-                                continue;
                 }
                 printf("[FAIL]\tR%d has changed:%016llx\n", num, *r64);
                 err++;