Merge tag 'pm-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These add Intel TPMI (Topology Aware Register and PM Capsule
  Interface) support to the power capping subsystem, extend the
  intel_idle driver to work in VM guests where MWAIT is not available,
  extend the system-wide power management diagnostics, fix bugs and
  clean up code.

  Specifics:

   - Introduce power capping core support for Intel TPMI (Topology Aware
     Register and PM Capsule Interface) and a TPMI interface driver for
     Intel RAPL (Zhang Rui, Dan Carpenter)

   - Fix CONFIG_IOSF_MBI dependency in the Intel RAPL power capping
     driver (Zhang Rui)

   - Fix invalid initialization for pl4_supported field in the Intel
     RAPL power capping driver (Sumeet Pawnikar)

   - Clean up the intel_idle driver, make it work with VM guests that
     cannot use the MWAIT instruction and address the case in which the
     host may enter a deep idle state when the guest is idle (Arjan van
     de Ven)

   - Prevent cpufreq drivers that provide the ->adjust_perf() callback
     without a ->fast_switch() one which is used as a fallback from the
     former in some cases (Wyes Karny)

   - Fix some issues related to the AMD P-state cpufreq driver (Mario
     Limonciello, Wyes Karny)

   - Fix the energy_performance_preference attribute handling in the
     intel_pstate driver in passive mode (Tero Kristo)

   - Fix the handling of pm_suspend_target_state when CONFIG_PM is unset
     (Kai-Heng Feng)

   - Correct spelling mistake in a comment in the hibernation code (Wang
     Honghui)

   - Add arch_resume_nosmt() prototype to avoid a "missing prototypes"
     build warning (Arnd Bergmann)

   - Restrict pm_pr_dbg() to system-wide power transitions and use it in
     a few additional places (Mario Limonciello)

   - Drop verification of in-params from genpd_add_device() and ensure
     that all of its callers will do it (Ulf Hansson)

   - Prevent possible integer overflows from occurring in
     genpd_parse_state() (Nikita Zhandarovich)

   - Reorder fieldls in 'struct devfreq_dev_status' to reduce its size
     somewhat (Christophe JAILLET)

   - Ensure that the Exynos PPMU driver is already loaded before the
     Exynos Bus driver starts probing so as to avoid a possible freeze
     loading of the kernel modules (Marek Szyprowski)

   - Fix variable deferencing before NULL check in the mtk-cci devfreq
     driver (Sukrut Bellary)"

* tag 'pm-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (42 commits)
  intel_idle: Add a "Long HLT" C1 state for the VM guest mode
  cpufreq: intel_pstate: Fix energy_performance_preference for passive
  cpufreq: amd-pstate: Add a kernel config option to set default mode
  cpufreq: amd-pstate: Set a fallback policy based on preferred_profile
  ACPI: CPPC: Add definition for undefined FADT preferred PM profile value
  cpufreq: amd-pstate: Set default governor to schedutil
  PM: domains: Move the verification of in-params from genpd_add_device()
  cpufreq: amd-pstate: Make amd-pstate EPP driver name hyphenated
  cpufreq: amd-pstate: Write CPPC enable bit per-socket
  intel_idle: Add support for using intel_idle in a VM guest using just hlt
  cpufreq: Fail driver register if it has adjust_perf without fast_switch
  intel_idle: clean up the (new) state_update_enter_method function
  intel_idle: refactor state->enter manipulation into its own function
  platform/x86/amd: pmc: Use pm_pr_dbg() for suspend related messages
  pinctrl: amd: Use pm_pr_dbg to show debugging messages
  ACPI: x86: Add pm_debug_messages for LPS0 _DSM state tracking
  include/linux/suspend.h: Only show pm_pr_dbg messages at suspend/resume
  powercap: RAPL: Fix a NULL vs IS_ERR() bug
  powercap: RAPL: Fix CONFIG_IOSF_MBI dependency
  powercap: RAPL: fix invalid initialization for pl4_supported field
  ...

1 files changed, 10 insertions, 4 deletions

diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index f16653f7be32..4d0095e8989e 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -202,6 +202,7 @@ struct platform_s2idle_ops {
 };
 
 #ifdef CONFIG_SUSPEND
+extern suspend_state_t pm_suspend_target_state;
 extern suspend_state_t mem_sleep_current;
 extern suspend_state_t mem_sleep_default;
 
@@ -337,6 +338,8 @@ extern bool sync_on_suspend_enabled;
 #else /* !CONFIG_SUSPEND */
 #define suspend_valid_only_mem	NULL
 
+#define pm_suspend_target_state	(PM_SUSPEND_ON)
+
 static inline void pm_suspend_clear_flags(void) {}
 static inline void pm_set_suspend_via_firmware(void) {}
 static inline void pm_set_resume_via_firmware(void) {}
@@ -472,6 +475,8 @@ static inline int hibernate_quiet_exec(int (*func)(void *data), void *data) {
 }
 #endif /* CONFIG_HIBERNATION */
 
+int arch_resume_nosmt(void);
+
 #ifdef CONFIG_HIBERNATION_SNAPSHOT_DEV
 int is_hibernate_resume_dev(dev_t dev);
 #else
@@ -507,7 +512,6 @@ extern void pm_report_max_hw_sleep(u64 t);
 
 /* drivers/base/power/wakeup.c */
 extern bool events_check_enabled;
-extern suspend_state_t pm_suspend_target_state;
 
 extern bool pm_wakeup_pending(void);
 extern void pm_system_wakeup(void);
@@ -555,6 +559,7 @@ static inline void unlock_system_sleep(unsigned int flags) {}
 #ifdef CONFIG_PM_SLEEP_DEBUG
 extern bool pm_print_times_enabled;
 extern bool pm_debug_messages_on;
+extern bool pm_debug_messages_should_print(void);
 static inline int pm_dyn_debug_messages_on(void)
 {
 #ifdef CONFIG_DYNAMIC_DEBUG
@@ -568,14 +573,14 @@ static inline int pm_dyn_debug_messages_on(void)
 #endif
 #define __pm_pr_dbg(fmt, ...)					\
 	do {							\
-		if (pm_debug_messages_on)			\
+		if (pm_debug_messages_should_print())		\
 			printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__);	\
 		else if (pm_dyn_debug_messages_on())		\
 			pr_debug(fmt, ##__VA_ARGS__);	\
 	} while (0)
 #define __pm_deferred_pr_dbg(fmt, ...)				\
 	do {							\
-		if (pm_debug_messages_on)			\
+		if (pm_debug_messages_should_print())		\
 			printk_deferred(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__);	\
 	} while (0)
 #else
@@ -593,7 +598,8 @@ static inline int pm_dyn_debug_messages_on(void)
 /**
  * pm_pr_dbg - print pm sleep debug messages
  *
- * If pm_debug_messages_on is enabled, print message.
+ * If pm_debug_messages_on is enabled and the system is entering/leaving
+ *      suspend, print message.
  * If pm_debug_messages_on is disabled and CONFIG_DYNAMIC_DEBUG is enabled,
  *	print message only from instances explicitly enabled on dynamic debug's
  *	control.