Merge tag 'pm+acpi-4.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management and ACPI updates from Rafael Wysocki:
 "The only new feature in this batch is support for the ACPI _CCA device
  configuration object, which it a pre-requisite for future ACPI PCI
  support on ARM64, but should not affect the other architectures.

  The rest is fixes and cleanups, mostly in cpufreq (including
  intel_pstate), the Operating Performace Points (OPP) framework and
  tools (cpupower and turbostat).

  Specifics:

   - Support for the ACPI _CCA configuration object intended to tell the
     OS whether or not a bus master device supports hardware managed
     cache coherency and a new set of functions to allow drivers to
     check the cache coherency support for devices in a platform
     firmware interface agnostic way (Suravee Suthikulpanit, Jeremy
     Linton).

   - ACPI backlight quirks for ESPRIMO Mobile M9410 and Dell XPS L421X
     (Aaron Lu, Hans de Goede).

   - Fixes for the arm_big_little and s5pv210-cpufreq cpufreq drivers
     (Jon Medhurst, Nicolas Pitre).

   - kfree()-related fixup for the recently introduced CPPC cpufreq
     frontend (Markus Elfring).

   - intel_pstate fix reducing kernel log noise on systems where
     P-states are managed by hardware (Prarit Bhargava).

   - intel_pstate maintainers information update (Srinivas Pandruvada).

   - cpufreq core optimization related to the handling of delayed work
     items used by governors (Viresh Kumar).

   - Locking fixes and cleanups of the Operating Performance Points
     (OPP) framework (Viresh Kumar).

   - Generic power domains framework cleanups (Lina Iyer).

   - cpupower tool updates (Jacob Tanenbaum, Sriram Raghunathan, Thomas
     Renninger).

   - turbostat tool updates (Len Brown)"

* tag 'pm+acpi-4.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  PCI: ACPI: Add support for PCI device DMA coherency
  PCI: OF: Move of_pci_dma_configure() to pci_dma_configure()
  of/pci: Fix pci_get_host_bridge_device leak
  device property: ACPI: Remove unused DMA APIs
  device property: ACPI: Make use of the new DMA Attribute APIs
  device property: Adding DMA Attribute APIs for Generic Devices
  ACPI: Adding DMA Attribute APIs for ACPI Device
  device property: Introducing enum dev_dma_attr
  ACPI: Honor ACPI _CCA attribute setting
  cpufreq: CPPC: Delete an unnecessary check before the function call kfree()
  PM / OPP: Add opp_rcu_lockdep_assert() to _find_device_opp()
  PM / OPP: Hold dev_opp_list_lock for writers
  PM / OPP: Protect updates to list_dev with mutex
  PM / OPP: Propagate error properly from dev_pm_opp_set_sharing_cpus()
  cpufreq: s5pv210-cpufreq: fix wrong do_div() usage
  MAINTAINERS: update for intel P-state driver
  Creating a common structure initialization pattern for struct option
  cpupower: Enable disabled Cstates if they are below max latency
  cpupower: Remove debug message when using cpupower idle-set -D switch
  cpupower: cpupower monitor reports uninitialized values for offline cpus
  ...

11 files changed, 88 insertions, 63 deletions

diff --git a/tools/power/cpupower/debug/i386/dump_psb.c b/tools/power/cpupower/debug/i386/dump_psb.c
index 8d6a47514253..2c768cf70128 100644
--- a/tools/power/cpupower/debug/i386/dump_psb.c
+++ b/tools/power/cpupower/debug/i386/dump_psb.c
@@ -134,7 +134,7 @@ next_one:
 }
 
 static struct option info_opts[] = {
-	{.name = "numpst",	.has_arg=no_argument,	.flag=NULL, .val='n'},
+     {"numpst", no_argument, NULL, 'n'},
 };
 
 void print_help(void)
diff --git a/tools/power/cpupower/man/cpupower-idle-set.1 b/tools/power/cpupower/man/cpupower-idle-set.1
index 3e6799d7a79f..580c4e3ea92a 100644
--- a/tools/power/cpupower/man/cpupower-idle-set.1
+++ b/tools/power/cpupower/man/cpupower-idle-set.1
@@ -20,7 +20,9 @@ Disable a specific processor sleep state.
 Enable a specific processor sleep state.
 .TP
 \fB\-D\fR \fB\-\-disable-by-latency\fR <LATENCY>
-Disable all idle states with a equal or higher latency than <LATENCY>
+Disable all idle states with a equal or higher latency than <LATENCY>.
+
+Enable all idle states with a latency lower than <LATENCY>.
 .TP
 \fB\-E\fR \fB\-\-enable-all\fR
 Enable all idle states if not enabled already.
diff --git a/tools/power/cpupower/utils/cpufreq-info.c b/tools/power/cpupower/utils/cpufreq-info.c
index b4b90a97662c..0e6764330241 100644
--- a/tools/power/cpupower/utils/cpufreq-info.c
+++ b/tools/power/cpupower/utils/cpufreq-info.c
@@ -536,21 +536,21 @@ static int get_latency(unsigned int cpu, unsigned int human)
 }
 
 static struct option info_opts[] = {
-	{ .name = "debug",	.has_arg = no_argument,		.flag = NULL,	.val = 'e'},
-	{ .name = "boost",	.has_arg = no_argument,		.flag = NULL,	.val = 'b'},
-	{ .name = "freq",	.has_arg = no_argument,		.flag = NULL,	.val = 'f'},
-	{ .name = "hwfreq",	.has_arg = no_argument,		.flag = NULL,	.val = 'w'},
-	{ .name = "hwlimits",	.has_arg = no_argument,		.flag = NULL,	.val = 'l'},
-	{ .name = "driver",	.has_arg = no_argument,		.flag = NULL,	.val = 'd'},
-	{ .name = "policy",	.has_arg = no_argument,		.flag = NULL,	.val = 'p'},
-	{ .name = "governors",	.has_arg = no_argument,		.flag = NULL,	.val = 'g'},
-	{ .name = "related-cpus", .has_arg = no_argument,	.flag = NULL,	.val = 'r'},
-	{ .name = "affected-cpus",.has_arg = no_argument,	.flag = NULL,	.val = 'a'},
-	{ .name = "stats",	.has_arg = no_argument,		.flag = NULL,	.val = 's'},
-	{ .name = "latency",	.has_arg = no_argument,		.flag = NULL,	.val = 'y'},
-	{ .name = "proc",	.has_arg = no_argument,		.flag = NULL,	.val = 'o'},
-	{ .name = "human",	.has_arg = no_argument,		.flag = NULL,	.val = 'm'},
-	{ .name = "no-rounding", .has_arg = no_argument,	.flag = NULL,	.val = 'n'},
+	{"debug",	 no_argument,		 NULL,	 'e'},
+	{"boost",	 no_argument,		 NULL,	 'b'},
+	{"freq",	 no_argument,		 NULL,	 'f'},
+	{"hwfreq",	 no_argument,		 NULL,	 'w'},
+	{"hwlimits",	 no_argument,		 NULL,	 'l'},
+	{"driver",	 no_argument,		 NULL,	 'd'},
+	{"policy",	 no_argument,		 NULL,	 'p'},
+	{"governors",	 no_argument,		 NULL,	 'g'},
+	{"related-cpus",  no_argument,	 NULL,	 'r'},
+	{"affected-cpus", no_argument,	 NULL,	 'a'},
+	{"stats",	 no_argument,		 NULL,	 's'},
+	{"latency",	 no_argument,		 NULL,	 'y'},
+	{"proc",	 no_argument,		 NULL,	 'o'},
+	{"human",	 no_argument,		 NULL,	 'm'},
+	{"no-rounding", no_argument,	 NULL,	 'n'},
 	{ },
 };
 
diff --git a/tools/power/cpupower/utils/cpufreq-set.c b/tools/power/cpupower/utils/cpufreq-set.c
index 4e213576381e..0fbd1a22c0a9 100644
--- a/tools/power/cpupower/utils/cpufreq-set.c
+++ b/tools/power/cpupower/utils/cpufreq-set.c
@@ -22,11 +22,11 @@
 #define NORM_FREQ_LEN 32
 
 static struct option set_opts[] = {
-	{ .name = "min",	.has_arg = required_argument,	.flag = NULL,	.val = 'd'},
-	{ .name = "max",	.has_arg = required_argument,	.flag = NULL,	.val = 'u'},
-	{ .name = "governor",	.has_arg = required_argument,	.flag = NULL,	.val = 'g'},
-	{ .name = "freq",	.has_arg = required_argument,	.flag = NULL,	.val = 'f'},
-	{ .name = "related",	.has_arg = no_argument,		.flag = NULL,	.val='r'},
+	{"min",		required_argument,	NULL, 'd'},
+	{"max",		required_argument,	NULL, 'u'},
+	{"governor",	required_argument,	NULL, 'g'},
+	{"freq",	required_argument,	NULL, 'f'},
+	{"related",	no_argument,		NULL, 'r'},
 	{ },
 };
 
diff --git a/tools/power/cpupower/utils/cpuidle-info.c b/tools/power/cpupower/utils/cpuidle-info.c
index 75e66de7e7a7..750c1d82c3f7 100644
--- a/tools/power/cpupower/utils/cpuidle-info.c
+++ b/tools/power/cpupower/utils/cpuidle-info.c
@@ -126,8 +126,8 @@ static void proc_cpuidle_cpu_output(unsigned int cpu)
 }
 
 static struct option info_opts[] = {
-	{ .name = "silent",	.has_arg = no_argument,	.flag = NULL,	.val = 's'},
-	{ .name = "proc",	.has_arg = no_argument,	.flag = NULL,	.val = 'o'},
+	{"silent", no_argument, NULL, 's'},
+	{"proc", no_argument, NULL, 'o'},
 	{ },
 };
 
diff --git a/tools/power/cpupower/utils/cpuidle-set.c b/tools/power/cpupower/utils/cpuidle-set.c
index d45d8d775c02..d6b6ae44b8c2 100644
--- a/tools/power/cpupower/utils/cpuidle-set.c
+++ b/tools/power/cpupower/utils/cpuidle-set.c
@@ -13,15 +13,11 @@
 #include "helpers/sysfs.h"
 
 static struct option info_opts[] = {
-	{ .name = "disable",
-	  .has_arg = required_argument,	.flag = NULL,	.val = 'd'},
-	{ .name = "enable",
-	  .has_arg = required_argument,	.flag = NULL,	.val = 'e'},
-	{ .name = "disable-by-latency",
-	  .has_arg = required_argument,	.flag = NULL,	.val = 'D'},
-	{ .name = "enable-all",
-	  .has_arg = no_argument,	.flag = NULL,	.val = 'E'},
-	{ },
+     {"disable",	required_argument,		NULL, 'd'},
+     {"enable",		required_argument,		NULL, 'e'},
+     {"disable-by-latency", required_argument,		NULL, 'D'},
+     {"enable-all",	no_argument,			NULL, 'E'},
+     { },
 };
 
 
@@ -148,14 +144,21 @@ int cmd_idle_set(int argc, char **argv)
 					(cpu, idlestate);
 				state_latency = sysfs_get_idlestate_latency
 					(cpu, idlestate);
-				printf("CPU: %u - idlestate %u - state_latency: %llu - latency: %llu\n",
-				       cpu, idlestate, state_latency, latency);
-				if (disabled == 1 || latency > state_latency)
+				if (disabled == 1) {
+					if (latency > state_latency){
+						ret = sysfs_idlestate_disable
+							(cpu, idlestate, 0);
+						if (ret == 0)
+		printf(_("Idlestate %u enabled on CPU %u\n"),  idlestate, cpu);
+					}
 					continue;
-				ret = sysfs_idlestate_disable
-					(cpu, idlestate, 1);
-				if (ret == 0)
+				}
+				if (latency <= state_latency){
+					ret = sysfs_idlestate_disable
+						(cpu, idlestate, 1);
+					if (ret == 0)
 		printf(_("Idlestate %u disabled on CPU %u\n"), idlestate, cpu);
+				}
 			}
 			break;
 		case 'E':
diff --git a/tools/power/cpupower/utils/cpupower-info.c b/tools/power/cpupower/utils/cpupower-info.c
index 136d979e9586..10299f2e9d2a 100644
--- a/tools/power/cpupower/utils/cpupower-info.c
+++ b/tools/power/cpupower/utils/cpupower-info.c
@@ -17,8 +17,8 @@
 #include "helpers/sysfs.h"
 
 static struct option set_opts[] = {
-	{ .name = "perf-bias",	.has_arg = optional_argument,	.flag = NULL,	.val = 'b'},
-	{ },
+     {"perf-bias", optional_argument, NULL, 'b'},
+     { },
 };
 
 static void print_wrong_arg_exit(void)
diff --git a/tools/power/cpupower/utils/cpupower-set.c b/tools/power/cpupower/utils/cpupower-set.c
index 573c75f8e3f5..3e6f374f8dd7 100644
--- a/tools/power/cpupower/utils/cpupower-set.c
+++ b/tools/power/cpupower/utils/cpupower-set.c
@@ -18,7 +18,7 @@
 #include "helpers/bitmask.h"
 
 static struct option set_opts[] = {
-	{ .name = "perf-bias",	.has_arg = required_argument,	.flag = NULL,	.val = 'b'},
+	{"perf-bias", required_argument, NULL, 'b'},
 	{ },
 };
 
diff --git a/tools/power/cpupower/utils/helpers/topology.c b/tools/power/cpupower/utils/helpers/topology.c
index cea398c176e7..9cbb7fd75171 100644
--- a/tools/power/cpupower/utils/helpers/topology.c
+++ b/tools/power/cpupower/utils/helpers/topology.c
@@ -73,18 +73,22 @@ int get_cpu_topology(struct cpupower_topology *cpu_top)
 	for (cpu = 0; cpu < cpus; cpu++) {
 		cpu_top->core_info[cpu].cpu = cpu;
 		cpu_top->core_info[cpu].is_online = sysfs_is_cpu_online(cpu);
-		if (!cpu_top->core_info[cpu].is_online)
-			continue;
 		if(sysfs_topology_read_file(
 			cpu,
 			"physical_package_id",
-			&(cpu_top->core_info[cpu].pkg)) < 0)
-			return -1;
+			&(cpu_top->core_info[cpu].pkg)) < 0) {
+			cpu_top->core_info[cpu].pkg = -1;
+			cpu_top->core_info[cpu].core = -1;
+			continue;
+		}
 		if(sysfs_topology_read_file(
 			cpu,
 			"core_id",
-			&(cpu_top->core_info[cpu].core)) < 0)
-			return -1;
+			&(cpu_top->core_info[cpu].core)) < 0) {
+			cpu_top->core_info[cpu].pkg = -1;
+			cpu_top->core_info[cpu].core = -1;
+			continue;
+		}
 	}
 
 	qsort(cpu_top->core_info, cpus, sizeof(struct cpuid_core_info),
@@ -95,12 +99,15 @@ int get_cpu_topology(struct cpupower_topology *cpu_top)
 	   done by pkg value. */
 	last_pkg = cpu_top->core_info[0].pkg;
 	for(cpu = 1; cpu < cpus; cpu++) {
-		if(cpu_top->core_info[cpu].pkg != last_pkg) {
+		if (cpu_top->core_info[cpu].pkg != last_pkg &&
+				cpu_top->core_info[cpu].pkg != -1) {
+
 			last_pkg = cpu_top->core_info[cpu].pkg;
 			cpu_top->pkgs++;
 		}
 	}
-	cpu_top->pkgs++;
+	if (!cpu_top->core_info[0].pkg == -1)
+		cpu_top->pkgs++;
 
 	/* Intel's cores count is not consecutively numbered, there may
 	 * be a core_id of 3, but none of 2. Assume there always is 0
diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c
index c4bae9203a69..05f953f0f0a0 100644
--- a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c
+++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c
@@ -143,6 +143,9 @@ void print_results(int topology_depth, int cpu)
 	/* Be careful CPUs may got resorted for pkg value do not just use cpu */
 	if (!bitmask_isbitset(cpus_chosen, cpu_top.core_info[cpu].cpu))
 		return;
+	if (!cpu_top.core_info[cpu].is_online &&
+	    cpu_top.core_info[cpu].pkg == -1)
+		return;
 
 	if (topology_depth > 2)
 		printf("%4d|", cpu_top.core_info[cpu].pkg);
@@ -191,7 +194,8 @@ void print_results(int topology_depth, int cpu)
 	 * It's up to the monitor plug-in to check .is_online, this one
 	 * is just for additional info.
 	 */
-	if (!cpu_top.core_info[cpu].is_online) {
+	if (!cpu_top.core_info[cpu].is_online &&
+	    cpu_top.core_info[cpu].pkg != -1) {
 		printf(_(" *is offline\n"));
 		return;
 	} else
@@ -388,6 +392,9 @@ int cmd_monitor(int argc, char **argv)
 		return EXIT_FAILURE;
 	}
 
+	if (!cpu_top.core_info[0].is_online)
+		printf("WARNING: at least one cpu is offline\n");
+
 	/* Default is: monitor all CPUs */
 	if (bitmask_isallclear(cpus_chosen))
 		bitmask_setall(cpus_chosen);
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index bde0ef1a63df..d8e4b20b6d54 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -75,6 +75,7 @@ unsigned int aperf_mperf_multiplier = 1;
 int do_smi;
 double bclk;
 double base_hz;
+unsigned int has_base_hz;
 double tsc_tweak = 1.0;
 unsigned int show_pkg;
 unsigned int show_core;
@@ -96,6 +97,7 @@ unsigned int do_ring_perf_limit_reasons;
 unsigned int crystal_hz;
 unsigned long long tsc_hz;
 int base_cpu;
+double discover_bclk(unsigned int family, unsigned int model);
 
 #define RAPL_PKG		(1 << 0)
 					/* 0x610 MSR_PKG_POWER_LIMIT */
@@ -511,9 +513,13 @@ int format_counters(struct thread_data *t, struct core_data *c,
 	}
 
 	/* Bzy_MHz */
-	if (has_aperf)
-		outp += sprintf(outp, "%8.0f",
-			1.0 * t->tsc * tsc_tweak / units * t->aperf / t->mperf / interval_float);
+	if (has_aperf) {
+		if (has_base_hz)
+			outp += sprintf(outp, "%8.0f", base_hz / units * t->aperf / t->mperf);
+		else
+			outp += sprintf(outp, "%8.0f",
+				1.0 * t->tsc / units * t->aperf / t->mperf / interval_float);
+	}
 
 	/* TSC_MHz */
 	outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float);
@@ -1158,12 +1164,6 @@ int phi_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCLRSV, PCLRSV,
 static void
 calculate_tsc_tweak()
 {
-	unsigned long long msr;
-	unsigned int base_ratio;
-
-	get_msr(base_cpu, MSR_NHM_PLATFORM_INFO, &msr);
-	base_ratio = (msr >> 8) & 0xFF;
-	base_hz = base_ratio * bclk * 1000000;
 	tsc_tweak = base_hz / tsc_hz;
 }
 
@@ -1440,7 +1440,7 @@ dump_config_tdp(void)
 	
 	get_msr(base_cpu, MSR_TURBO_ACTIVATION_RATIO, &msr);
 	fprintf(stderr, "cpu%d: MSR_TURBO_ACTIVATION_RATIO: 0x%08llx (", base_cpu, msr);
-	fprintf(stderr, "MAX_NON_TURBO_RATIO=%d", (unsigned int)(msr) & 0xEF);
+	fprintf(stderr, "MAX_NON_TURBO_RATIO=%d", (unsigned int)(msr) & 0x7F);
 	fprintf(stderr, " lock=%d", (unsigned int)(msr >> 31) & 1);
 	fprintf(stderr, ")\n");
 }
@@ -1821,6 +1821,7 @@ void check_permissions()
 int probe_nhm_msrs(unsigned int family, unsigned int model)
 {
 	unsigned long long msr;
+	unsigned int base_ratio;
 	int *pkg_cstate_limits;
 
 	if (!genuine_intel)
@@ -1829,6 +1830,8 @@ int probe_nhm_msrs(unsigned int family, unsigned int model)
 	if (family != 6)
 		return 0;
 
+	bclk = discover_bclk(family, model);
+
 	switch (model) {
 	case 0x1A:	/* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */
 	case 0x1E:	/* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */
@@ -1871,9 +1874,13 @@ int probe_nhm_msrs(unsigned int family, unsigned int model)
 		return 0;
 	}
 	get_msr(base_cpu, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
-
 	pkg_cstate_limit = pkg_cstate_limits[msr & 0xF];
 
+	get_msr(base_cpu, MSR_NHM_PLATFORM_INFO, &msr);
+	base_ratio = (msr >> 8) & 0xFF;
+
+	base_hz = base_ratio * bclk * 1000000;
+	has_base_hz = 1;
 	return 1;
 }
 int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model)
@@ -2780,7 +2787,6 @@ void process_cpuid()
 	do_skl_residency = has_skl_msrs(family, model);
 	do_slm_cstates = is_slm(family, model);
 	do_knl_cstates  = is_knl(family, model);
-	bclk = discover_bclk(family, model);
 
 	rapl_probe(family, model);
 	perf_limit_reasons_probe(family, model);