Merge tag 'acpi-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

330235e8 · Linus Torvalds <[email protected]> · 2023-08-28 17:58:39 -07:00

Pull ACPI updates from Rafael Wysocki:
 "These include new ACPICA material, a rework of the ACPI thermal
  driver, a switch-over of the ACPI processor driver to using _OSC
  instead of (long deprecated) _PDC for CPU initialization, a rework of
  firmware notifications handling in several drivers, fixes and cleanups
  for suspend-to-idle handling on AMD systems, ACPI backlight driver
  updates and more.

  Specifics:

   - Update the ACPICA code in the kernel to upstream revision 20230628
     including the following changes:
      - Suppress a GCC 12 dangling-pointer warning (Philip Prindeville)
      - Reformat the ACPI_STATE_COMMON macro and its users (George Guo)
      - Replace the ternary operator with ACPI_MIN() (Jiangshan Yi)
      - Add support for _DSC as per ACPI 6.5 (Saket Dumbre)
      - Remove a duplicate macro from zephyr header (Najumon B.A)
      - Add data structures for GED and _EVT tracking (Jose Marinho)
      - Fix misspelled CDAT DSMAS define (Dave Jiang)
      - Simplify an error message in acpi_ds_result_push() (Christophe
        Jaillet)
      - Add a struct size macro related to SRAT (Dave Jiang)
      - Add AML_NO_OPERAND_RESOLVE flag to Timer (Abhishek Mainkar)
      - Add support for RISC-V external interrupt controllers in MADT
        (Sunil V L)
      - Add RHCT flags, CMO and MMU nodes (Sunil V L)
      - Change ACPICA version to 20230628 (Bob Moore)

   - Introduce new wrappers for ACPICA notify handler install/remove and
     convert multiple drivers to using their own Notify() handlers
     instead of the ACPI bus type .notify() slated for removal (Michal
     Wilczynski)

   - Add backlight=native DMI quirk for Apple iMac12,1 and iMac12,2
     (Hans de Goede)

   - Put ACPI video and its child devices explicitly into D0 on boot to
     avoid platform firmware confusion (Kai-Heng Feng)

   - Add backlight=native DMI quirk for Lenovo Ideapad Z470 (Jiri Slaby)

   - Support obtaining physical CPU ID from MADT on LoongArch (Bibo Mao)

   - Convert ACPI CPU initialization to using _OSC instead of _PDC that
     has been depreceted since 2018 and dropped from the specification
     in ACPI 6.5 (Michal Wilczynski, Rafael Wysocki)

   - Drop non-functional nocrt parameter from ACPI thermal (Mario
     Limonciello)

   - Clean up the ACPI thermal driver, rework the handling of firmware
     notifications in it and make it provide a table of generic trip
     point structures to the core during initialization (Rafael Wysocki)

   - Defer enumeration of devices with _DEP pointing to IVSC (Wentong
     Wu)

   - Install SystemCMOS address space handler for ACPI000E (TAD) to meet
     platform firmware expectations on some platforms (Zhang Rui)

   - Fix finding the generic error data in the ACPi extlog driver for
     compatibility with old and new firmware interface versions
     (Xiaochun Lee)

   - Remove assorted unused declarations of functions (Yue Haibing)

   - Move AMBA bus scan handling into arm64 specific directory (Sudeep
     Holla)

   - Fix and clean up suspend-to-idle interface for AMD systems (Mario
     Limonciello, Andy Shevchenko)

   - Fix string truncation warning in pnpacpi_add_device() (Sunil V L)"

* tag 'acpi-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (66 commits)
  ACPI: x86: s2idle: Add a function to get LPS0 constraint for a device
  ACPI: x86: s2idle: Add for_each_lpi_constraint() helper
  ACPI: x86: s2idle: Add more debugging for AMD constraints parsing
  ACPI: x86: s2idle: Fix a logic error parsing AMD constraints table
  ACPI: x86: s2idle: Catch multiple ACPI_TYPE_PACKAGE objects
  ACPI: x86: s2idle: Post-increment variables when getting constraints
  ACPI: Adjust #ifdef for *_lps0_dev use
  ACPI: TAD: Install SystemCMOS address space handler for ACPI000E
  ACPI: Remove assorted unused declarations of functions
  ACPI: extlog: Fix finding the generic error data for v3 structure
  PNP: ACPI: Fix string truncation warning
  ACPI: Remove unused extern declaration acpi_paddr_to_node()
  ACPI: video: Add backlight=native DMI quirk for Apple iMac12,1 and iMac12,2
  ACPI: video: Put ACPI video and its child devices into D0 on boot
  ACPI: processor: LoongArch: Get physical ID from MADT
  ACPI: scan: Defer enumeration of devices with a _DEP pointing to IVSC device
  ACPI: thermal: Eliminate code duplication from acpi_thermal_notify()
  ACPI: thermal: Drop unnecessary thermal zone callbacks
  ACPI: thermal: Rework thermal_get_trend()
  ACPI: thermal: Use trip point table to register thermal zones
  ...

Commit: 330235e87410349042468b52baff02af7cb7d331
Parents: 2927d226 · b483d3b8

Merge commit. Changes below are compared with the first parent: 2927d226.

Changes

53 files changed · +967 −580

File	Status	Add	Del	Content
Documentation/admin-guide/kernel-parameters.txt	modified	+0	−4	View file
arch/ia64/include/asm/acpi.h	modified	+3	−3	View file
arch/x86/include/asm/acpi.h	modified	+16	−8	View file
arch/x86/xen/enlighten_pv.c	modified	+4	−4	View file
drivers/acpi/Makefile	modified	+0	−1	View file
drivers/acpi/ac.c	modified	+19	−8	View file
drivers/acpi/acpi_cmos_rtc.c	modified	+18	−7	View file
drivers/acpi/acpi_extlog.c	modified	+1	−1	View file
drivers/acpi/acpi_processor.c	modified	+92	−32	View file
drivers/acpi/acpi_tad.c	modified	+22	−5	View file
drivers/acpi/acpi_video.c	modified	+23	−3	View file
drivers/acpi/acpica/acdebug.h	modified	+2	−0	View file
drivers/acpi/acpica/acglobal.h	modified	+1	−0	View file
drivers/acpi/acpica/aclocal.h	modified	+27	−11	View file
drivers/acpi/acpica/acpredef.h	modified	+3	−0	View file
drivers/acpi/acpica/dbcmds.c	modified	+58	−0	View file
drivers/acpi/acpica/dbinput.c	modified	+8	−0	View file
drivers/acpi/acpica/dswstate.c	modified	+2	−2	View file
drivers/acpi/acpica/exserial.c	modified	+1	−2	View file
drivers/acpi/acpica/psopcode.c	modified	+1	−1	View file
drivers/acpi/acpica/utdebug.c	modified	+5	−0	View file
drivers/acpi/arm64/Makefile	modified	+1	−0	View file
drivers/acpi/acpi_amba.c → drivers/acpi/arm64/amba.c	renamed	+1	−1	View file
drivers/acpi/arm64/init.c	modified	+2	−0	View file
drivers/acpi/arm64/init.h	modified	+1	−0	View file
drivers/acpi/battery.c	modified	+19	−5	View file
drivers/acpi/bus.c	modified	+28	−5	View file
drivers/acpi/hed.c	modified	+12	−3	View file
drivers/acpi/internal.h	modified	+4	−12	View file
drivers/acpi/nfit/core.c	modified	+28	−14	View file
drivers/acpi/processor_core.c	modified	+29	−0	View file
drivers/acpi/processor_pdc.c	modified	+2	−95	View file
drivers/acpi/scan.c	modified	+3	−1	View file
drivers/acpi/thermal.c	modified	+219	−251	View file
drivers/acpi/video_detect.c	modified	+27	−0	View file
drivers/acpi/x86/s2idle.c	modified	+65	−34	View file
drivers/acpi/x86/utils.c	modified	+35	−0	View file
drivers/pnp/pnpacpi/core.c	modified	+3	−0	View file
drivers/thermal/thermal_core.c	modified	+21	−1	View file
drivers/thermal/thermal_core.h	modified	+0	−4	View file
drivers/thermal/thermal_trip.c	modified	+8	−10	View file
include/acpi/acnames.h	modified	+1	−0	View file
include/acpi/acpi_bus.h	modified	+15	−2	View file
include/acpi/acpixf.h	modified	+1	−3	View file
include/acpi/actbl1.h	modified	+1	−1	View file
include/acpi/actbl2.h	modified	+74	−2	View file
include/acpi/actbl3.h	modified	+3	−1	View file
include/acpi/pdc_intel.h	deleted	+0	−36	View before deletion
include/acpi/platform/aclinux.h	modified	+1	−0	View file
include/acpi/platform/aczephyr.h	modified	+0	−3	View file
include/acpi/proc_cap_intel.h	added	+40	−0	View file
include/linux/acpi.h	modified	+8	−4	View file
include/linux/thermal.h	modified	+9	−0	View file

Only the first 600 diff lines are shown. Download the complete patch.

Documentation/admin-guide/kernel-parameters.txt

View file

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index d526eba..0c38a8a 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -6333,10 +6333,6 @@
 			-1: disable all critical trip points in all thermal zones
 			<degrees C>: override all critical trip points
 
-	thermal.nocrt=	[HW,ACPI]
-			Set to disable actions on ACPI thermal zone
-			critical and hot trip points.
-
 	thermal.off=	[HW,ACPI]
 			1: disable ACPI thermal control
 

arch/ia64/include/asm/acpi.h

View file

diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index 87927eb..58500a9 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -11,7 +11,7 @@
 
 #ifdef __KERNEL__
 
-#include <acpi/pdc_intel.h>
+#include <acpi/proc_cap_intel.h>
 
 #include <linux/init.h>
 #include <linux/numa.h>
@@ -69,9 +69,9 @@ extern int __initdata nid_to_pxm_map[MAX_NUMNODES];
 #endif
 
 static inline bool arch_has_acpi_pdc(void) { return true; }
-static inline void arch_acpi_set_pdc_bits(u32 *buf)
+static inline void arch_acpi_set_proc_cap_bits(u32 *cap)
 {
-	buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
+	*cap |= ACPI_PROC_CAP_EST_CAPABILITY_SMP;
 }
 
 #ifdef CONFIG_ACPI_NUMA

arch/x86/include/asm/acpi.h

View file

diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 2888c0e..c8a7fc2 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -6,7 +6,7 @@
  *  Copyright (C) 2001 Paul Diefenbaugh <[email protected]>
  *  Copyright (C) 2001 Patrick Mochel <[email protected]>
  */
-#include <acpi/pdc_intel.h>
+#include <acpi/proc_cap_intel.h>
 
 #include <asm/numa.h>
 #include <asm/fixmap.h>
@@ -102,23 +102,31 @@ static inline bool arch_has_acpi_pdc(void)
 		c->x86_vendor == X86_VENDOR_CENTAUR);
 }
 
-static inline void arch_acpi_set_pdc_bits(u32 *buf)
+static inline void arch_acpi_set_proc_cap_bits(u32 *cap)
 {
 	struct cpuinfo_x86 *c = &cpu_data(0);
 
-	buf[2] |= ACPI_PDC_C_CAPABILITY_SMP;
+	*cap |= ACPI_PROC_CAP_C_CAPABILITY_SMP;
+
+	/* Enable coordination with firmware's _TSD info */
+	*cap |= ACPI_PROC_CAP_SMP_T_SWCOORD;
 
 	if (cpu_has(c, X86_FEATURE_EST))
-		buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP;
+		*cap |= ACPI_PROC_CAP_EST_CAPABILITY_SWSMP;
 
 	if (cpu_has(c, X86_FEATURE_ACPI))
-		buf[2] |= ACPI_PDC_T_FFH;
+		*cap |= ACPI_PROC_CAP_T_FFH;
+
+	if (cpu_has(c, X86_FEATURE_HWP))
+		*cap |= ACPI_PROC_CAP_COLLAB_PROC_PERF;
 
 	/*
-	 * If mwait/monitor is unsupported, C2/C3_FFH will be disabled
+	 * If mwait/monitor is unsupported, C_C1_FFH and
+	 * C2/C3_FFH will be disabled.
 	 */
-	if (!cpu_has(c, X86_FEATURE_MWAIT))
-		buf[2] &= ~(ACPI_PDC_C_C2C3_FFH);
+	if (!cpu_has(c, X86_FEATURE_MWAIT) ||
+	    boot_option_idle_override == IDLE_NOMWAIT)
+		*cap &= ~(ACPI_PROC_CAP_C_C1_FFH | ACPI_PROC_CAP_C_C2C3_FFH);
 }
 
 static inline bool acpi_has_cpu_in_madt(void)

arch/x86/xen/enlighten_pv.c

View file

diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 7178976..27fc170 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -79,7 +79,7 @@
 #ifdef CONFIG_ACPI
 #include <linux/acpi.h>
 #include <asm/acpi.h>
-#include <acpi/pdc_intel.h>
+#include <acpi/proc_cap_intel.h>
 #include <acpi/processor.h>
 #include <xen/interface/platform.h>
 #endif
@@ -288,17 +288,17 @@ static bool __init xen_check_mwait(void)
 
 	native_cpuid(&ax, &bx, &cx, &dx);
 
-	/* Ask the Hypervisor whether to clear ACPI_PDC_C_C2C3_FFH. If so,
+	/* Ask the Hypervisor whether to clear ACPI_PROC_CAP_C_C2C3_FFH. If so,
 	 * don't expose MWAIT_LEAF and let ACPI pick the IOPORT version of C3.
 	 */
 	buf[0] = ACPI_PDC_REVISION_ID;
 	buf[1] = 1;
-	buf[2] = (ACPI_PDC_C_CAPABILITY_SMP | ACPI_PDC_EST_CAPABILITY_SWSMP);
+	buf[2] = (ACPI_PROC_CAP_C_CAPABILITY_SMP | ACPI_PROC_CAP_EST_CAPABILITY_SWSMP);
 
 	set_xen_guest_handle(op.u.set_pminfo.pdc, buf);
 
 	if ((HYPERVISOR_platform_op(&op) == 0) &&
-	    (buf[2] & (ACPI_PDC_C_C1_FFH | ACPI_PDC_C_C2C3_FFH))) {
+	    (buf[2] & (ACPI_PROC_CAP_C_C1_FFH | ACPI_PROC_CAP_C_C2C3_FFH))) {
 		cpuid_leaf5_ecx_val = cx;
 		cpuid_leaf5_edx_val = dx;
 	}

drivers/acpi/Makefile

View file

diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 3fc5a0d..eaa09bf 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -50,7 +50,6 @@ acpi-$(CONFIG_PCI)		+= acpi_lpss.o
 acpi-y				+= acpi_apd.o
 acpi-y				+= acpi_platform.o
 acpi-y				+= acpi_pnp.o
-acpi-$(CONFIG_ARM_AMBA)	+= acpi_amba.o
 acpi-y				+= power.o
 acpi-y				+= event.o
 acpi-y				+= evged.o

drivers/acpi/ac.c

View file

diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 1ace70b..225dc68 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -34,7 +34,7 @@ MODULE_LICENSE("GPL");
 
 static int acpi_ac_add(struct acpi_device *device);
 static void acpi_ac_remove(struct acpi_device *device);
-static void acpi_ac_notify(struct acpi_device *device, u32 event);
+static void acpi_ac_notify(acpi_handle handle, u32 event, void *data);
 
 static const struct acpi_device_id ac_device_ids[] = {
 	{"ACPI0003", 0},
@@ -54,11 +54,9 @@ static struct acpi_driver acpi_ac_driver = {
 	.name = "ac",
 	.class = ACPI_AC_CLASS,
 	.ids = ac_device_ids,
-	.flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
 	.ops = {
 		.add = acpi_ac_add,
 		.remove = acpi_ac_remove,
-		.notify = acpi_ac_notify,
 		},
 	.drv.pm = &acpi_ac_pm,
 };
@@ -128,8 +126,9 @@ static enum power_supply_property ac_props[] = {
 };
 
 /* Driver Model */
-static void acpi_ac_notify(struct acpi_device *device, u32 event)
+static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
 {
+	struct acpi_device *device = data;
 	struct acpi_ac *ac = acpi_driver_data(device);
 
 	if (!ac)
@@ -235,7 +234,7 @@ static int acpi_ac_add(struct acpi_device *device)
 
 	result = acpi_ac_get_state(ac);
 	if (result)
-		goto end;
+		goto err_release_ac;
 
 	psy_cfg.drv_data = ac;
 
@@ -248,7 +247,7 @@ static int acpi_ac_add(struct acpi_device *device)
 					    &ac->charger_desc, &psy_cfg);
 	if (IS_ERR(ac->charger)) {
 		result = PTR_ERR(ac->charger);
-		goto end;
+		goto err_release_ac;
 	}
 
 	pr_info("%s [%s] (%s)\n", acpi_device_name(device),
@@ -256,9 +255,19 @@ static int acpi_ac_add(struct acpi_device *device)
 
 	ac->battery_nb.notifier_call = acpi_ac_battery_notify;
 	register_acpi_notifier(&ac->battery_nb);
-end:
+
+	result = acpi_dev_install_notify_handler(device, ACPI_ALL_NOTIFY,
+						 acpi_ac_notify);
 	if (result)
-		kfree(ac);
+		goto err_unregister;
+
+	return 0;
+
+err_unregister:
+	power_supply_unregister(ac->charger);
+	unregister_acpi_notifier(&ac->battery_nb);
+err_release_ac:
+	kfree(ac);
 
 	return result;
 }
@@ -297,6 +306,8 @@ static void acpi_ac_remove(struct acpi_device *device)
 
 	ac = acpi_driver_data(device);
 
+	acpi_dev_remove_notify_handler(device, ACPI_ALL_NOTIFY,
+				       acpi_ac_notify);
 	power_supply_unregister(ac->charger);
 	unregister_acpi_notifier(&ac->battery_nb);
 

drivers/acpi/acpi_cmos_rtc.c

View file

diff --git a/drivers/acpi/acpi_cmos_rtc.c b/drivers/acpi/acpi_cmos_rtc.c
index 4cf4aef..9b55d15 100644
--- a/drivers/acpi/acpi_cmos_rtc.c
+++ b/drivers/acpi/acpi_cmos_rtc.c
@@ -51,12 +51,11 @@ acpi_cmos_rtc_space_handler(u32 function, acpi_physical_address address,
 	return AE_OK;
 }
 
-static int acpi_install_cmos_rtc_space_handler(struct acpi_device *adev,
-		const struct acpi_device_id *id)
+int acpi_install_cmos_rtc_space_handler(acpi_handle handle)
 {
 	acpi_status status;
 
-	status = acpi_install_address_space_handler(adev->handle,
+	status = acpi_install_address_space_handler(handle,
 			ACPI_ADR_SPACE_CMOS,
 			&acpi_cmos_rtc_space_handler,
 			NULL, NULL);
@@ -67,18 +66,30 @@ static int acpi_install_cmos_rtc_space_handler(struct acpi_device *adev,
 
 	return 1;
 }
+EXPORT_SYMBOL_GPL(acpi_install_cmos_rtc_space_handler);
 
-static void acpi_remove_cmos_rtc_space_handler(struct acpi_device *adev)
+void acpi_remove_cmos_rtc_space_handler(acpi_handle handle)
 {
-	if (ACPI_FAILURE(acpi_remove_address_space_handler(adev->handle,
+	if (ACPI_FAILURE(acpi_remove_address_space_handler(handle,
 			ACPI_ADR_SPACE_CMOS, &acpi_cmos_rtc_space_handler)))
 		pr_err("Error removing CMOS-RTC region handler\n");
 }
+EXPORT_SYMBOL_GPL(acpi_remove_cmos_rtc_space_handler);
+
+static int acpi_cmos_rtc_attach_handler(struct acpi_device *adev, const struct acpi_device_id *id)
+{
+	return acpi_install_cmos_rtc_space_handler(adev->handle);
+}
+
+static void acpi_cmos_rtc_detach_handler(struct acpi_device *adev)
+{
+	acpi_remove_cmos_rtc_space_handler(adev->handle);
+}
 
 static struct acpi_scan_handler cmos_rtc_handler = {
 	.ids = acpi_cmos_rtc_ids,
-	.attach = acpi_install_cmos_rtc_space_handler,
-	.detach = acpi_remove_cmos_rtc_space_handler,
+	.attach = acpi_cmos_rtc_attach_handler,
+	.detach = acpi_cmos_rtc_detach_handler,
 };
 
 void __init acpi_cmos_rtc_init(void)

drivers/acpi/acpi_extlog.c

View file

diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c
index e648158..e120a96 100644
--- a/drivers/acpi/acpi_extlog.c
+++ b/drivers/acpi/acpi_extlog.c
@@ -172,7 +172,7 @@ static int extlog_print(struct notifier_block *nb, unsigned long val,
 			fru_text = "";
 		sec_type = (guid_t *)gdata->section_type;
 		if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) {
-			struct cper_sec_mem_err *mem = (void *)(gdata + 1);
+			struct cper_sec_mem_err *mem = acpi_hest_get_payload(gdata);
 
 			if (gdata->error_data_length >= sizeof(*mem))
 				trace_extlog_mem_event(mem, err_seq, fru_id, fru_text,

drivers/acpi/acpi_processor.c

View file

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index f9aa02c..c711db8 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -9,9 +9,11 @@
  * Copyright (C) 2013, Intel Corporation
  *                     Rafael J. Wysocki <[email protected]>
  */
+#define pr_fmt(fmt) "ACPI: " fmt
 
 #include <linux/acpi.h>
 #include <linux/device.h>
+#include <linux/dmi.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/pci.h>
@@ -21,6 +23,8 @@
 
 #include <asm/cpu.h>
 
+#include <xen/xen.h>
+
 #include "internal.h"
 
 DEFINE_PER_CPU(struct acpi_processor *, processors);
@@ -508,54 +512,110 @@ static void acpi_processor_remove(struct acpi_device *device)
 }
 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 
-#ifdef CONFIG_X86
-static bool acpi_hwp_native_thermal_lvt_set;
-static acpi_status __init acpi_hwp_native_thermal_lvt_osc(acpi_handle handle,
-							  u32 lvl,
-							  void *context,
-							  void **rv)
+#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC
+bool __init processor_physically_present(acpi_handle handle)
+{
+	int cpuid, type;
+	u32 acpi_id;
+	acpi_status status;
+	acpi_object_type acpi_type;
+	unsigned long long tmp;
+	union acpi_object object = {};
+	struct acpi_buffer buffer = { sizeof(union acpi_object), &object };
+
+	status = acpi_get_type(handle, &acpi_type);
+	if (ACPI_FAILURE(status))
+		return false;
+
+	switch (acpi_type) {
+	case ACPI_TYPE_PROCESSOR:
+		status = acpi_evaluate_object(handle, NULL, NULL, &buffer);
+		if (ACPI_FAILURE(status))
+			return false;
+		acpi_id = object.processor.proc_id;
+		break;
+	case ACPI_TYPE_DEVICE:
+		status = acpi_evaluate_integer(handle, METHOD_NAME__UID,
+					       NULL, &tmp);
+		if (ACPI_FAILURE(status))
+			return false;
+		acpi_id = tmp;
+		break;
+	default:
+		return false;
+	}
+
+	if (xen_initial_domain())
+		/*
+		 * When running as a Xen dom0 the number of processors Linux
+		 * sees can be different from the real number of processors on
+		 * the system, and we still need to execute _PDC or _OSC for
+		 * all of them.
+		 */
+		return xen_processor_present(acpi_id);
+
+	type = (acpi_type == ACPI_TYPE_DEVICE) ? 1 : 0;
+	cpuid = acpi_get_cpuid(handle, type, acpi_id);
+
+	return !invalid_logical_cpuid(cpuid);
+}
+
+/* vendor specific UUID indicating an Intel platform */
+static u8 sb_uuid_str[] = "4077A616-290C-47BE-9EBD-D87058713953";
+
+static acpi_status __init acpi_processor_osc(acpi_handle handle, u32 lvl,
+					     void *context, void **rv)
 {
-	u8 sb_uuid_str[] = "4077A616-290C-47BE-9EBD-D87058713953";
-	u32 capbuf[2];
+	u32 capbuf[2] = {};
 	struct acpi_osc_context osc_context = {
 		.uuid_str = sb_uuid_str,
 		.rev = 1,
 		.cap.length = 8,
 		.cap.pointer = capbuf,
 	};
+	acpi_status status;
 
-	if (acpi_hwp_native_thermal_lvt_set)
-		return AE_CTRL_TERMINATE;
+	if (!processor_physically_present(handle))
+		return AE_OK;
 
-	capbuf[0] = 0x0000;
-	capbuf[1] = 0x1000; /* set bit 12 */
+	arch_acpi_set_proc_cap_bits(&capbuf[OSC_SUPPORT_DWORD]);
 
-	if (ACPI_SUCCESS(acpi_run_osc(handle, &osc_context))) {
-		if (osc_context.ret.pointer && osc_context.ret.length > 1) {
-			u32 *capbuf_ret = osc_context.ret.pointer;
+	status = acpi_run_osc(handle, &osc_context);
+	if (ACPI_FAILURE(status))
+		return status;
 
-			if (capbuf_ret[1] & 0x1000) {
-				acpi_handle_info(handle,
-					"_OSC native thermal LVT Acked\n");
-				acpi_hwp_native_thermal_lvt_set = true;
-			}
-		}
-		kfree(osc_context.ret.pointer);
-	}
+	kfree(osc_context.ret.pointer);
 
 	return AE_OK;
 }
 
-void __init acpi_early_processor_osc(void)
+static bool __init acpi_early_processor_osc(void)
 {
-	if (boot_cpu_has(X86_FEATURE_HWP)) {
-		acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
-				    ACPI_UINT32_MAX,
-				    acpi_hwp_native_thermal_lvt_osc,
-				    NULL, NULL, NULL);
-		acpi_get_devices(ACPI_PROCESSOR_DEVICE_HID,
-				 acpi_hwp_native_thermal_lvt_osc,
-				 NULL, NULL);
+	acpi_status status;
+
+	acpi_proc_quirk_mwait_check();
+
+	status = acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
+				     ACPI_UINT32_MAX, acpi_processor_osc, NULL,
+				     NULL, NULL);
+	if (ACPI_FAILURE(status))
+		return false;
+
+	status = acpi_get_devices(ACPI_PROCESSOR_DEVICE_HID, acpi_processor_osc,
+				  NULL, NULL);
+	if (ACPI_FAILURE(status))
+		return false;
+
+	return true;
+}
+
+void __init acpi_early_processor_control_setup(void)
+{
+	if (acpi_early_processor_osc()) {
+		pr_info("_OSC evaluated successfully for all CPUs\n");
+	} else {
+		pr_info("_OSC evaluation for CPUs failed, trying _PDC\n");
+		acpi_early_processor_set_pdc();
 	}
 }
 #endif

drivers/acpi/acpi_tad.c

View file

diff --git a/drivers/acpi/acpi_tad.c b/drivers/acpi/acpi_tad.c
index e9b8e83..33c3b16 100644
--- a/drivers/acpi/acpi_tad.c
+++ b/drivers/acpi/acpi_tad.c
@@ -557,6 +557,7 @@ static int acpi_tad_disable_timer(struct device *dev, u32 timer_id)
 static int acpi_tad_remove(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
+	acpi_handle handle = ACPI_HANDLE(dev);
 	struct acpi_tad_driver_data *dd = dev_get_drvdata(dev);
 
 	device_init_wakeup(dev, false);
@@ -577,6 +578,7 @@ static int acpi_tad_remove(struct platform_device *pdev)
 
 	pm_runtime_put_sync(dev);
 	pm_runtime_disable(dev);
+	acpi_remove_cmos_rtc_space_handler(handle);
 	return 0;
 }
 
@@ -589,6 +591,11 @@ static int acpi_tad_probe(struct platform_device *pdev)
 	unsigned long long caps;
 	int ret;
 
+	ret = acpi_install_cmos_rtc_space_handler(handle);
+	if (ret < 0) {
+		dev_info(dev, "Unable to install space handler\n");
+		return -ENODEV;
+	}
 	/*
 	 * Initialization failure messages are mostly about firmware issues, so
 	 * print them at the "info" level.
@@ -596,22 +603,27 @@ static int acpi_tad_probe(struct platform_device *pdev)
 	status = acpi_evaluate_integer(handle, "_GCP", NULL, &caps);
 	if (ACPI_FAILURE(status)) {
 		dev_info(dev, "Unable to get capabilities\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto remove_handler;
 	}
 
 	if (!(caps & ACPI_TAD_AC_WAKE)) {
 		dev_info(dev, "Unsupported capabilities\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto remove_handler;
 	}
 
 	if (!acpi_has_method(handle, "_PRW")) {
 		dev_info(dev, "Missing _PRW\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto remove_handler;
 	}
 
 	dd = devm_kzalloc(dev, sizeof(*dd), GFP_KERNEL);
-	if (!dd)
-		return -ENOMEM;
+	if (!dd) {
+		ret = -ENOMEM;
+		goto remove_handler;
+	}
 
 	dd->capabilities = caps;
 	dev_set_drvdata(dev, dd);
@@ -653,6 +665,11 @@ static int acpi_tad_probe(struct platform_device *pdev)
 
 fail:
 	acpi_tad_remove(pdev);
+	/* Don't fallthrough because cmos rtc space handler is removed in acpi_tad_remove() */
+	return ret;
+
+remove_handler:
+	acpi_remove_cmos_rtc_space_handler(handle);
 	return ret;
 }
 

drivers/acpi/acpi_video.c

View file

diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 62f4364..948e31f 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -77,7 +77,7 @@ static DEFINE_MUTEX(video_list_lock);
 static LIST_HEAD(video_bus_head);
 static int acpi_video_bus_add(struct acpi_device *device);
 static void acpi_video_bus_remove(struct acpi_device *device);
-static void acpi_video_bus_notify(struct acpi_device *device, u32 event);
+static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data);
 
 /*
  * Indices in the _BCL method response: the first two items are special,
@@ -104,7 +104,6 @@ static struct acpi_driver acpi_video_bus = {
 	.ops = {
 		.add = acpi_video_bus_add,
 		.remove = acpi_video_bus_remove,
-		.notify = acpi_video_bus_notify,
 		},
 };
 
@@ -1527,8 +1526,9 @@ static int acpi_video_bus_stop_devices(struct acpi_video_bus *video)
 				  acpi_osi_is_win8() ? 0 : 1);
 }
 
-static void acpi_video_bus_notify(struct acpi_device *device, u32 event)
+static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
 {
+	struct acpi_device *device = data;
 	struct acpi_video_bus *video = acpi_driver_data(device);
 	struct input_dev *input;
 	int keycode = 0;
@@ -2027,6 +2027,12 @@ static int acpi_video_bus_add(struct acpi_device *device)
 	if (error)
 		goto err_put_video;
 
+	/*
+	 * HP ZBook Fury 16 G10 requires ACPI video's child devices have _PS0
+	 * evaluated to have functional panel brightness control.
+	 */
+	acpi_device_fix_up_power_extended(device);
+
 	pr_info("%s [%s] (multi-head: %s  rom: %s  post: %s)\n",
 	       ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device),
 	       video->flags.multihead ? "yes" : "no",
@@ -2053,8 +2059,19 @@ static int acpi_video_bus_add(struct acpi_device *device)
 
 	acpi_video_bus_add_notify_handler(video);
 
+	error = acpi_dev_install_notify_handler(device, ACPI_DEVICE_NOTIFY,
+						acpi_video_bus_notify);
+	if (error)
+		goto err_remove;
+
 	return 0;
 
+err_remove:
+	mutex_lock(&video_list_lock);
+	list_del(&video->entry);
+	mutex_unlock(&video_list_lock);
+	acpi_video_bus_remove_notify_handler(video);
+	acpi_video_bus_unregister_backlight(video);
 err_put_video:
 	acpi_video_bus_put_devices(video);
 	kfree(video->attached_array);