Merge branches 'pm-devfreq' and 'pm-tools'

* pm-devfreq:
  PM / devfreq: remove redundant null pointer check before kfree
  PM / devfreq: stopping the governor before device_unregister()
  PM / devfreq: Convert to using %pOFn instead of device_node.name
  PM / devfreq: Make update_devfreq() public
  PM / devfreq: Don't adjust to user limits in governors
  PM / devfreq: Fix handling of min/max_freq == 0
  PM / devfreq: Drop custom MIN/MAX macros
  PM / devfreq: Fix devfreq_add_device() when drivers are built as modules.

* pm-tools:
  PM / tools: sleepgraph and bootgraph: upgrade to v5.2
  PM / tools: sleepgraph: first batch of v5.2 changes
  cpupower: Fix coredump on VMWare
  cpupower: Fix AMD Family 0x17 msr_pstate size
  cpupower: remove stringop-truncation waring

drivers/devfreq/devfreq.c

@@ -11,6 +11,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/kmod.h>
 #include <linux/sched.h>
 #include <linux/errno.h>
 #include <linux/err.h>
@@ -28,9 +29,6 @@
 #include <linux/of.h>
 #include "governor.h"
 
-#define MAX(a,b)	((a > b) ? a : b)
-#define MIN(a,b)	((a < b) ? a : b)
-
 static struct class *devfreq_class;
 
 /*
@@ -221,6 +219,49 @@ static struct devfreq_governor *find_devfreq_governor(const char *name)
 	return ERR_PTR(-ENODEV);
 }
 
+/**
+ * try_then_request_governor() - Try to find the governor and request the
+ *                               module if is not found.
+ * @name:	name of the governor
+ *
+ * Search the list of devfreq governors and request the module and try again
+ * if is not found. This can happen when both drivers (the governor driver
+ * and the driver that call devfreq_add_device) are built as modules.
+ * devfreq_list_lock should be held by the caller. Returns the matched
+ * governor's pointer.
+ */
+static struct devfreq_governor *try_then_request_governor(const char *name)
+{
+	struct devfreq_governor *governor;
+	int err = 0;
+
+	if (IS_ERR_OR_NULL(name)) {
+		pr_err("DEVFREQ: %s: Invalid parameters\n", __func__);
+		return ERR_PTR(-EINVAL);
+	}
+	WARN(!mutex_is_locked(&devfreq_list_lock),
+	     "devfreq_list_lock must be locked.");
+
+	governor = find_devfreq_governor(name);
+	if (IS_ERR(governor)) {
+		mutex_unlock(&devfreq_list_lock);
+
+		if (!strncmp(name, DEVFREQ_GOV_SIMPLE_ONDEMAND,
+			     DEVFREQ_NAME_LEN))
+			err = request_module("governor_%s", "simpleondemand");
+		else
+			err = request_module("governor_%s", name);
+		/* Restore previous state before return */
+		mutex_lock(&devfreq_list_lock);
+		if (err)
+			return NULL;
+
+		governor = find_devfreq_governor(name);
+	}
+
+	return governor;
+}
+
 static int devfreq_notify_transition(struct devfreq *devfreq,
 		struct devfreq_freqs *freqs, unsigned int state)
 {
@@ -280,14 +321,14 @@ int update_devfreq(struct devfreq *devfreq)
 	 * max_freq
 	 * min_freq
 	 */
-	max_freq = MIN(devfreq->scaling_max_freq, devfreq->max_freq);
-	min_freq = MAX(devfreq->scaling_min_freq, devfreq->min_freq);
+	max_freq = min(devfreq->scaling_max_freq, devfreq->max_freq);
+	min_freq = max(devfreq->scaling_min_freq, devfreq->min_freq);
 
-	if (min_freq && freq < min_freq) {
+	if (freq < min_freq) {
 		freq = min_freq;
 		flags &= ~DEVFREQ_FLAG_LEAST_UPPER_BOUND; /* Use GLB */
 	}
-	if (max_freq && freq > max_freq) {
+	if (freq > max_freq) {
 		freq = max_freq;
 		flags |= DEVFREQ_FLAG_LEAST_UPPER_BOUND; /* Use LUB */
 	}
@@ -534,10 +575,6 @@ static void devfreq_dev_release(struct device *dev)
 	list_del(&devfreq->node);
 	mutex_unlock(&devfreq_list_lock);
 
-	if (devfreq->governor)
-		devfreq->governor->event_handler(devfreq,
-						 DEVFREQ_GOV_STOP, NULL);
-
 	if (devfreq->profile->exit)
 		devfreq->profile->exit(devfreq->dev.parent);
 
@@ -646,9 +683,8 @@ struct devfreq *devfreq_add_device(struct device *dev,
 	mutex_unlock(&devfreq->lock);
 
 	mutex_lock(&devfreq_list_lock);
-	list_add(&devfreq->node, &devfreq_list);
 
-	governor = find_devfreq_governor(devfreq->governor_name);
+	governor = try_then_request_governor(devfreq->governor_name);
 	if (IS_ERR(governor)) {
 		dev_err(dev, "%s: Unable to find governor for the device\n",
 			__func__);
@@ -664,19 +700,20 @@ struct devfreq *devfreq_add_device(struct device *dev,
 			__func__);
 		goto err_init;
 	}
+
+	list_add(&devfreq->node, &devfreq_list);
+
 	mutex_unlock(&devfreq_list_lock);
 
 	return devfreq;
 
 err_init:
-	list_del(&devfreq->node);
 	mutex_unlock(&devfreq_list_lock);
 
-	device_unregister(&devfreq->dev);
+	devfreq_remove_device(devfreq);
 	devfreq = NULL;
 err_dev:
-	if (devfreq)
-		kfree(devfreq);
+	kfree(devfreq);
 err_out:
 	return ERR_PTR(err);
 }
@@ -693,6 +730,9 @@ int devfreq_remove_device(struct devfreq *devfreq)
 	if (!devfreq)
 		return -EINVAL;
 
+	if (devfreq->governor)
+		devfreq->governor->event_handler(devfreq,
+						 DEVFREQ_GOV_STOP, NULL);
 	device_unregister(&devfreq->dev);
 
 	return 0;
@@ -991,7 +1031,7 @@ static ssize_t governor_store(struct device *dev, struct device_attribute *attr,
 		return -EINVAL;
 
 	mutex_lock(&devfreq_list_lock);
-	governor = find_devfreq_governor(str_governor);
+	governor = try_then_request_governor(str_governor);
 	if (IS_ERR(governor)) {
 		ret = PTR_ERR(governor);
 		goto out;
@@ -1126,17 +1166,26 @@ static ssize_t min_freq_store(struct device *dev, struct device_attribute *attr,
 	struct devfreq *df = to_devfreq(dev);
 	unsigned long value;
 	int ret;
-	unsigned long max;
 
 	ret = sscanf(buf, "%lu", &value);
 	if (ret != 1)
 		return -EINVAL;
 
 	mutex_lock(&df->lock);
-	max = df->max_freq;
-	if (value && max && value > max) {
-		ret = -EINVAL;
-		goto unlock;
+
+	if (value) {
+		if (value > df->max_freq) {
+			ret = -EINVAL;
+			goto unlock;
+		}
+	} else {
+		unsigned long *freq_table = df->profile->freq_table;
+
+		/* Get minimum frequency according to sorting order */
+		if (freq_table[0] < freq_table[df->profile->max_state - 1])
+			value = freq_table[0];
+		else
+			value = freq_table[df->profile->max_state - 1];
 	}
 
 	df->min_freq = value;
@@ -1152,7 +1201,7 @@ static ssize_t min_freq_show(struct device *dev, struct device_attribute *attr,
 {
 	struct devfreq *df = to_devfreq(dev);
 
-	return sprintf(buf, "%lu\n", MAX(df->scaling_min_freq, df->min_freq));
+	return sprintf(buf, "%lu\n", max(df->scaling_min_freq, df->min_freq));
 }
 
 static ssize_t max_freq_store(struct device *dev, struct device_attribute *attr,
@@ -1161,17 +1210,26 @@ static ssize_t max_freq_store(struct device *dev, struct device_attribute *attr,
 	struct devfreq *df = to_devfreq(dev);
 	unsigned long value;
 	int ret;
-	unsigned long min;
 
 	ret = sscanf(buf, "%lu", &value);
 	if (ret != 1)
 		return -EINVAL;
 
 	mutex_lock(&df->lock);
-	min = df->min_freq;
-	if (value && min && value < min) {
-		ret = -EINVAL;
-		goto unlock;
+
+	if (value) {
+		if (value < df->min_freq) {
+			ret = -EINVAL;
+			goto unlock;
+		}
+	} else {
+		unsigned long *freq_table = df->profile->freq_table;
+
+		/* Get maximum frequency according to sorting order */
+		if (freq_table[0] < freq_table[df->profile->max_state - 1])
+			value = freq_table[df->profile->max_state - 1];
+		else
+			value = freq_table[0];
 	}
 
 	df->max_freq = value;
@@ -1188,7 +1246,7 @@ static ssize_t max_freq_show(struct device *dev, struct device_attribute *attr,
 {
 	struct devfreq *df = to_devfreq(dev);
 
-	return sprintf(buf, "%lu\n", MIN(df->scaling_max_freq, df->max_freq));
+	return sprintf(buf, "%lu\n", min(df->scaling_max_freq, df->max_freq));
 }
 static DEVICE_ATTR_RW(max_freq);
 

drivers/devfreq/event/exynos-ppmu.c

@@ -535,8 +535,8 @@ static int of_get_devfreq_events(struct device_node *np,
 
 		if (i == ARRAY_SIZE(ppmu_events)) {
 			dev_warn(dev,
-				"don't know how to configure events : %s\n",
-				node->name);
+				"don't know how to configure events : %pOFn\n",
+				node);
 			continue;
 		}
 

drivers/devfreq/governor.h

@@ -25,6 +25,9 @@
 #define DEVFREQ_GOV_SUSPEND			0x4
 #define DEVFREQ_GOV_RESUME			0x5
 
+#define DEVFREQ_MIN_FREQ			0
+#define DEVFREQ_MAX_FREQ			ULONG_MAX
+
 /**
  * struct devfreq_governor - Devfreq policy governor
  * @node:		list node - contains registered devfreq governors
@@ -54,9 +57,6 @@ struct devfreq_governor {
 				unsigned int event, void *data);
 };
 
-/* Caution: devfreq->lock must be locked before calling update_devfreq */
-extern int update_devfreq(struct devfreq *devfreq);
-
 extern void devfreq_monitor_start(struct devfreq *devfreq);
 extern void devfreq_monitor_stop(struct devfreq *devfreq);
 extern void devfreq_monitor_suspend(struct devfreq *devfreq);

drivers/devfreq/governor_performance.c

@@ -20,10 +20,7 @@ static int devfreq_performance_func(struct devfreq *df,
 	 * target callback should be able to get floor value as
 	 * said in devfreq.h
 	 */
-	if (!df->max_freq)
-		*freq = UINT_MAX;
-	else
-		*freq = df->max_freq;
+	*freq = DEVFREQ_MAX_FREQ;
 	return 0;
 }
 

drivers/devfreq/governor_powersave.c

@@ -20,7 +20,7 @@ static int devfreq_powersave_func(struct devfreq *df,
 	 * target callback should be able to get ceiling value as
 	 * said in devfreq.h
 	 */
-	*freq = df->min_freq;
+	*freq = DEVFREQ_MIN_FREQ;
 	return 0;
 }
 

drivers/devfreq/governor_simpleondemand.c

@@ -27,7 +27,6 @@ static int devfreq_simple_ondemand_func(struct devfreq *df,
 	unsigned int dfso_upthreshold = DFSO_UPTHRESHOLD;
 	unsigned int dfso_downdifferential = DFSO_DOWNDIFFERENCTIAL;
 	struct devfreq_simple_ondemand_data *data = df->data;
-	unsigned long max = (df->max_freq) ? df->max_freq : UINT_MAX;
 
 	err = devfreq_update_stats(df);
 	if (err)
@@ -47,7 +46,7 @@ static int devfreq_simple_ondemand_func(struct devfreq *df,
 
 	/* Assume MAX if it is going to be divided by zero */
 	if (stat->total_time == 0) {
-		*freq = max;
+		*freq = DEVFREQ_MAX_FREQ;
 		return 0;
 	}
 
@@ -60,13 +59,13 @@ static int devfreq_simple_ondemand_func(struct devfreq *df,
 	/* Set MAX if it's busy enough */
 	if (stat->busy_time * 100 >
 	    stat->total_time * dfso_upthreshold) {
-		*freq = max;
+		*freq = DEVFREQ_MAX_FREQ;
 		return 0;
 	}
 
 	/* Set MAX if we do not know the initial frequency */
 	if (stat->current_frequency == 0) {
-		*freq = max;
+		*freq = DEVFREQ_MAX_FREQ;
 		return 0;
 	}
 
@@ -85,11 +84,6 @@ static int devfreq_simple_ondemand_func(struct devfreq *df,
 	b = div_u64(b, (dfso_upthreshold - dfso_downdifferential / 2));
 	*freq = (unsigned long) b;
 
-	if (df->min_freq && *freq < df->min_freq)
-		*freq = df->min_freq;
-	if (df->max_freq && *freq > df->max_freq)
-		*freq = df->max_freq;
-
 	return 0;
 }
 

drivers/devfreq/governor_userspace.c

@@ -26,19 +26,11 @@ static int devfreq_userspace_func(struct devfreq *df, unsigned long *freq)
 {
 	struct userspace_data *data = df->data;
 
-	if (data->valid) {
-		unsigned long adjusted_freq = data->user_frequency;
-
-		if (df->max_freq && adjusted_freq > df->max_freq)
-			adjusted_freq = df->max_freq;
-
-		if (df->min_freq && adjusted_freq < df->min_freq)
-			adjusted_freq = df->min_freq;
-
-		*freq = adjusted_freq;
-	} else {
+	if (data->valid)
+		*freq = data->user_frequency;
+	else
 		*freq = df->previous_freq; /* No user freq specified yet */
-	}
+
 	return 0;
 }
 

include/linux/devfreq.h

@@ -198,6 +198,14 @@ extern void devm_devfreq_remove_device(struct device *dev,
 extern int devfreq_suspend_device(struct devfreq *devfreq);
 extern int devfreq_resume_device(struct devfreq *devfreq);
 
+/**
+ * update_devfreq() - Reevaluate the device and configure frequency
+ * @devfreq:	the devfreq device
+ *
+ * Note: devfreq->lock must be held
+ */
+extern int update_devfreq(struct devfreq *devfreq);
+
 /* Helper functions for devfreq user device driver with OPP. */
 extern struct dev_pm_opp *devfreq_recommended_opp(struct device *dev,
 					   unsigned long *freq, u32 flags);

tools/power/cpupower/bench/parse.c

@@ -145,7 +145,7 @@ struct config *prepare_default_config()
 	config->cpu = 0;
 	config->prio = SCHED_HIGH;
 	config->verbose = 0;
-	strncpy(config->governor, "ondemand", 8);
+	strncpy(config->governor, "ondemand", sizeof(config->governor));
 
 	config->output = stdout;
 

tools/power/cpupower/utils/cpufreq-info.c

@@ -200,6 +200,8 @@ static int get_boost_mode(unsigned int cpu)
 		printf(_("    Boost States: %d\n"), b_states);
 		printf(_("    Total States: %d\n"), pstate_no);
 		for (i = 0; i < pstate_no; i++) {
+			if (!pstates[i])
+				continue;
 			if (i < b_states)
 				printf(_("    Pstate-Pb%d: %luMHz (boost state)"
 					 "\n"), i, pstates[i]);

tools/power/cpupower/utils/helpers/amd.c

@@ -33,7 +33,7 @@ union msr_pstate {
 		unsigned vid:8;
 		unsigned iddval:8;
 		unsigned idddiv:2;
-		unsigned res1:30;
+		unsigned res1:31;
 		unsigned en:1;
 	} fam17h_bits;
 	unsigned long long val;
@@ -119,6 +119,11 @@ int decode_pstates(unsigned int cpu, unsigned int cpu_family,
 		}
 		if (read_msr(cpu, MSR_AMD_PSTATE + i, &pstate.val))
 			return -1;
+		if ((cpu_family == 0x17) && (!pstate.fam17h_bits.en))
+			continue;
+		else if (!pstate.bits.en)
+			continue;
+
 		pstates[i] = get_cof(cpu_family, pstate);
 	}
 	*no = i;

tools/power/pm-graph/Makefile

@@ -23,8 +23,8 @@ install : uninstall
 	install -m 644 config/suspend-x2-proc.cfg $(DESTDIR)$(PREFIX)/lib/pm-graph/config
 
 	install -d  $(DESTDIR)$(PREFIX)/bin
-	ln -s $(DESTDIR)$(PREFIX)/lib/pm-graph/bootgraph.py $(DESTDIR)$(PREFIX)/bin/bootgraph
-	ln -s $(DESTDIR)$(PREFIX)/lib/pm-graph/sleepgraph.py $(DESTDIR)$(PREFIX)/bin/sleepgraph
+	ln -s ../lib/pm-graph/bootgraph.py $(DESTDIR)$(PREFIX)/bin/bootgraph
+	ln -s ../lib/pm-graph/sleepgraph.py $(DESTDIR)$(PREFIX)/bin/sleepgraph
 
 	install -d  $(DESTDIR)$(PREFIX)/share/man/man8
 	install bootgraph.8 $(DESTDIR)$(PREFIX)/share/man/man8

tools/power/pm-graph/bootgraph.py

@@ -34,6 +34,10 @@ from datetime import datetime, timedelta
 from subprocess import call, Popen, PIPE
 import sleepgraph as aslib
 
+def pprint(msg):
+	print(msg)
+	sys.stdout.flush()
+
 # ----------------- CLASSES --------------------
 
 # Class: SystemValues
@@ -157,11 +161,11 @@ class SystemValues(aslib.SystemValues):
 		return cmdline
 	def manualRebootRequired(self):
 		cmdline = self.kernelParams()
-		print 'To generate a new timeline manually, follow these steps:\n'
-		print '1. Add the CMDLINE string to your kernel command line.'
-		print '2. Reboot the system.'
-		print '3. After reboot, re-run this tool with the same arguments but no command (w/o -reboot or -manual).\n'
-		print 'CMDLINE="%s"' % cmdline
+		pprint('To generate a new timeline manually, follow these steps:\n\n'\
+		'1. Add the CMDLINE string to your kernel command line.\n'\
+		'2. Reboot the system.\n'\
+		'3. After reboot, re-run this tool with the same arguments but no command (w/o -reboot or -manual).\n\n'\
+		'CMDLINE="%s"' % cmdline)
 		sys.exit()
 	def blGrub(self):
 		blcmd = ''
@@ -431,7 +435,7 @@ def parseTraceLog(data):
 			if len(cg.list) < 1 or cg.invalid or (cg.end - cg.start == 0):
 				continue
 			if(not cg.postProcess()):
-				print('Sanity check failed for %s-%d' % (proc, pid))
+				pprint('Sanity check failed for %s-%d' % (proc, pid))
 				continue
 			# match cg data to devices
 			devname = data.deviceMatch(pid, cg)
@@ -442,8 +446,8 @@ def parseTraceLog(data):
 				sysvals.vprint('%s callgraph found for %s %s-%d [%f - %f]' %\
 					(kind, cg.name, proc, pid, cg.start, cg.end))
 			elif len(cg.list) > 1000000:
-				print 'WARNING: the callgraph found for %s is massive! (%d lines)' %\
-					(devname, len(cg.list))
+				pprint('WARNING: the callgraph found for %s is massive! (%d lines)' %\
+					(devname, len(cg.list)))
 
 # Function: retrieveLogs
 # Description:
@@ -528,7 +532,7 @@ def createBootGraph(data):
 	tMax = data.end
 	tTotal = tMax - t0
 	if(tTotal == 0):
-		print('ERROR: No timeline data')
+		pprint('ERROR: No timeline data')
 		return False
 	user_mode = '%.0f'%(data.tUserMode*1000)
 	last_init = '%.0f'%(tTotal*1000)
@@ -734,7 +738,7 @@ def updateCron(restore=False):
 		op.close()
 		res = call([cmd, cronfile])
 	except Exception, e:
-		print 'Exception: %s' % str(e)
+		pprint('Exception: %s' % str(e))
 		shutil.move(backfile, cronfile)
 		res = -1
 	if res != 0:
@@ -750,7 +754,7 @@ def updateGrub(restore=False):
 			call(sysvals.blexec, stderr=PIPE, stdout=PIPE,
 				env={'PATH': '.:/sbin:/usr/sbin:/usr/bin:/sbin:/bin'})
 		except Exception, e:
-			print 'Exception: %s\n' % str(e)
+			pprint('Exception: %s\n' % str(e))
 		return
 	# extract the option and create a grub config without it
 	sysvals.rootUser(True)
@@ -797,7 +801,7 @@ def updateGrub(restore=False):
 		res = call(sysvals.blexec)
 		os.remove(grubfile)
 	except Exception, e:
-		print 'Exception: %s' % str(e)
+		pprint('Exception: %s' % str(e))
 		res = -1
 	# cleanup
 	shutil.move(tempfile, grubfile)
@@ -821,7 +825,7 @@ def updateKernelParams(restore=False):
 def doError(msg, help=False):
 	if help == True:
 		printHelp()
-	print 'ERROR: %s\n' % msg
+	pprint('ERROR: %s\n' % msg)
 	sysvals.outputResult({'error':msg})
 	sys.exit()
 
@@ -829,52 +833,51 @@ def doError(msg, help=False):
 # Description:
 #	 print out the help text
 def printHelp():
-	print('')
-	print('%s v%s' % (sysvals.title, sysvals.version))
-	print('Usage: bootgraph <options> <command>')
-	print('')
-	print('Description:')
-	print('  This tool reads in a dmesg log of linux kernel boot and')
-	print('  creates an html representation of the boot timeline up to')
-	print('  the start of the init process.')
-	print('')
-	print('  If no specific command is given the tool reads the current dmesg')
-	print('  and/or ftrace log and creates a timeline')
-	print('')
-	print('  Generates output files in subdirectory: boot-yymmdd-HHMMSS')
-	print('   HTML output:                    <hostname>_boot.html')
-	print('   raw dmesg output:               <hostname>_boot_dmesg.txt')
-	print('   raw ftrace output:              <hostname>_boot_ftrace.txt')
-	print('')
-	print('Options:')
-	print('  -h            Print this help text')
-	print('  -v            Print the current tool version')
-	print('  -verbose      Print extra information during execution and analysis')
-	print('  -addlogs      Add the dmesg log to the html output')
-	print('  -result fn    Export a results table to a text file for parsing.')
-	print('  -o name       Overrides the output subdirectory name when running a new test')
-	print('                default: boot-{date}-{time}')
-	print(' [advanced]')
-	print('  -fstat        Use ftrace to add function detail and statistics (default: disabled)')
-	print('  -f/-callgraph Add callgraph detail, can be very large (default: disabled)')
-	print('  -maxdepth N   limit the callgraph data to N call levels (default: 2)')
-	print('  -mincg ms     Discard all callgraphs shorter than ms milliseconds (e.g. 0.001 for us)')
-	print('  -timeprec N   Number of significant digits in timestamps (0:S, 3:ms, [6:us])')
-	print('  -expandcg     pre-expand the callgraph data in the html output (default: disabled)')
-	print('  -func list    Limit ftrace to comma-delimited list of functions (default: do_one_initcall)')
-	print('  -cgfilter S   Filter the callgraph output in the timeline')
-	print('  -cgskip file  Callgraph functions to skip, off to disable (default: cgskip.txt)')
-	print('  -bl name      Use the following boot loader for kernel params (default: grub)')
-	print('  -reboot       Reboot the machine automatically and generate a new timeline')
-	print('  -manual       Show the steps to generate a new timeline manually (used with -reboot)')
-	print('')
-	print('Other commands:')
-	print('  -flistall     Print all functions capable of being captured in ftrace')
-	print('  -sysinfo      Print out system info extracted from BIOS')
-	print(' [redo]')
-	print('  -dmesg file   Create HTML output using dmesg input (used with -ftrace)')
-	print('  -ftrace file  Create HTML output using ftrace input (used with -dmesg)')
-	print('')
+	pprint('\n%s v%s\n'\
+	'Usage: bootgraph <options> <command>\n'\
+	'\n'\
+	'Description:\n'\
+	'  This tool reads in a dmesg log of linux kernel boot and\n'\
+	'  creates an html representation of the boot timeline up to\n'\
+	'  the start of the init process.\n'\
+	'\n'\
+	'  If no specific command is given the tool reads the current dmesg\n'\
+	'  and/or ftrace log and creates a timeline\n'\
+	'\n'\
+	'  Generates output files in subdirectory: boot-yymmdd-HHMMSS\n'\
+	'   HTML output:                    <hostname>_boot.html\n'\
+	'   raw dmesg output:               <hostname>_boot_dmesg.txt\n'\
+	'   raw ftrace output:              <hostname>_boot_ftrace.txt\n'\
+	'\n'\
+	'Options:\n'\
+	'  -h            Print this help text\n'\
+	'  -v            Print the current tool version\n'\
+	'  -verbose      Print extra information during execution and analysis\n'\
+	'  -addlogs      Add the dmesg log to the html output\n'\
+	'  -result fn    Export a results table to a text file for parsing.\n'\
+	'  -o name       Overrides the output subdirectory name when running a new test\n'\
+	'                default: boot-{date}-{time}\n'\
+	' [advanced]\n'\
+	'  -fstat        Use ftrace to add function detail and statistics (default: disabled)\n'\
+	'  -f/-callgraph Add callgraph detail, can be very large (default: disabled)\n'\
+	'  -maxdepth N   limit the callgraph data to N call levels (default: 2)\n'\
+	'  -mincg ms     Discard all callgraphs shorter than ms milliseconds (e.g. 0.001 for us)\n'\
+	'  -timeprec N   Number of significant digits in timestamps (0:S, 3:ms, [6:us])\n'\
+	'  -expandcg     pre-expand the callgraph data in the html output (default: disabled)\n'\
+	'  -func list    Limit ftrace to comma-delimited list of functions (default: do_one_initcall)\n'\
+	'  -cgfilter S   Filter the callgraph output in the timeline\n'\
+	'  -cgskip file  Callgraph functions to skip, off to disable (default: cgskip.txt)\n'\
+	'  -bl name      Use the following boot loader for kernel params (default: grub)\n'\
+	'  -reboot       Reboot the machine automatically and generate a new timeline\n'\
+	'  -manual       Show the steps to generate a new timeline manually (used with -reboot)\n'\
+	'\n'\
+	'Other commands:\n'\
+	'  -flistall     Print all functions capable of being captured in ftrace\n'\
+	'  -sysinfo      Print out system info extracted from BIOS\n'\
+	' [redo]\n'\
+	'  -dmesg file   Create HTML output using dmesg input (used with -ftrace)\n'\
+	'  -ftrace file  Create HTML output using ftrace input (used with -dmesg)\n'\
+	'' % (sysvals.title, sysvals.version))
 	return True
 
 # ----------------- MAIN --------------------
@@ -895,7 +898,7 @@ if __name__ == '__main__':
 			printHelp()
 			sys.exit()
 		elif(arg == '-v'):
-			print("Version %s" % sysvals.version)
+			pprint("Version %s" % sysvals.version)
 			sys.exit()
 		elif(arg == '-verbose'):
 			sysvals.verbose = True
@@ -1016,7 +1019,7 @@ if __name__ == '__main__':
 				print f
 		elif cmd == 'checkbl':
 			sysvals.getBootLoader()
-			print 'Boot Loader: %s\n%s' % (sysvals.bootloader, sysvals.blexec)
+			pprint('Boot Loader: %s\n%s' % (sysvals.bootloader, sysvals.blexec))
 		elif(cmd == 'sysinfo'):
 			sysvals.printSystemInfo(True)
 		sys.exit()

tools/power/pm-graph/config/cgskip.txt

@@ -27,6 +27,7 @@ ktime_get
 # console calls
 printk
 dev_printk
+__dev_printk
 console_unlock
 
 # memory handling

tools/power/pm-graph/config/custom-timeline-functions.cfg

@@ -105,7 +105,7 @@ override-dev-timeline-functions: true
 #       example: [color=#CC00CC]
 #
 #   arglist: A list of arguments from registers/stack addresses. See URL:
-#            https://www.kernel.org/doc/Documentation/trace/kprobetrace.rst
+#            https://www.kernel.org/doc/Documentation/trace/kprobetrace.txt
 #
 #       example: cpu=%di:s32
 #
@@ -170,7 +170,7 @@ pm_restore_console:
 #       example: [color=#CC00CC]
 #
 #   arglist: A list of arguments from registers/stack addresses. See URL:
-#            https://www.kernel.org/doc/Documentation/trace/kprobetrace.rst
+#            https://www.kernel.org/doc/Documentation/trace/kprobetrace.txt
 #
 #       example: port=+36(%di):s32
 #

tools/power/pm-graph/sleepgraph.8

@@ -65,9 +65,9 @@ During test, enable/disable runtime suspend for all devices. The test is delayed
 by 5 seconds to allow runtime suspend changes to occur. The settings are restored
 after the test is complete.
 .TP
-\fB-display \fIon/off\fR
-Turn the display on or off for the test using the xset command. This helps
-maintain the consistecy of test data for better comparison.
+\fB-display \fIon/off/standby/suspend\fR
+Switch the display to the requested mode for the test using the xset command.
+This helps maintain the consistency of test data for better comparison.
 .TP
 \fB-skiphtml\fR
 Run the test and capture the trace logs, but skip the timeline generation.
@@ -183,6 +183,13 @@ Print out the contents of the ACPI Firmware Performance Data Table.
 \fB-battery\fR
 Print out battery status and current charge.
 .TP
+\fB-xon/-xoff/-xstandby/-xsuspend\fR
+Test xset by attempting to switch the display to the given mode. This
+is the same command which will be issued by \fB-display \fImode\fR.
+.TP
+\fB-xstat\fR
+Get the current DPMS display mode.
+.TP
 \fB-sysinfo\fR
 Print out system info extracted from BIOS. Reads /dev/mem directly instead of going through dmidecode.
 .TP