Vanshidhar Konda 3ecf2249e6 ACPI: CPPC: Fix access width used for PCC registers ... commit f489c948028b69cea235d9c0de1cc10eeb26a172 upstream. commit 2f4a4d63a193 ("ACPI: CPPC: Use access_width over bit_width for system memory accesses") modified cpc_read()/cpc_write() to use access_width to read CPC registers. However, for PCC registers the access width field in the ACPI register macro specifies the PCC subspace ID. For non-zero PCC subspace ID it is incorrectly treated as access width. This causes errors when reading from PCC registers in the CPPC driver. For PCC registers, base the size of read/write on the bit width field. The debug message in cpc_read()/cpc_write() is updated to print relevant information for the address space type used to read the register. Fixes: 2f4a4d63a193 ("ACPI: CPPC: Use access_width over bit_width for system memory accesses") Signed-off-by: Vanshidhar Konda <vanshikonda@os.amperecomputing.com> Tested-by: Jarred White <jarredwhite@linux.microsoft.com> Reviewed-by: Jarred White <jarredwhite@linux.microsoft.com> Reviewed-by: Easwar Hariharan <eahariha@linux.microsoft.com> Cc: 5.15+ <stable@vger.kernel.org> # 5.15+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-05-02 16:32:46 +02:00
..
acpica	ACPICA: debugger: check status of acpi_evaluate_object() in acpi_db_walk_for_fields()	2024-04-10 16:35:42 +02:00
apei	ACPI: APEI: set memory failure flags as MF_ACTION_REQUIRED on synchronous events	2024-02-05 20:14:15 +00:00
arm64	Char/Misc driver changes for 6.6-rc1	2023-09-01 09:53:54 -07:00
dptf	ACPI: DPTF: Drop stale link from Kconfig help	2022-09-28 17:26:25 +02:00
nfit	ACPI: NFIT: Install Notify() handler before getting NFIT table	2023-10-22 12:47:43 +02:00
numa	ACPI: NUMA: Fix the logic of getting the fake_pxm value	2024-02-05 20:14:15 +00:00
pmic	ACPI: PMIC: Add comments with DSDT power opregion field names	2023-01-30 16:47:13 +01:00
riscv	drivers/acpi: RISC-V: Add RHCT related code	2023-06-01 08:45:04 -07:00
x86	ACPI: x86: Move acpi_quirk_skip_serdev_enumeration() out of CONFIG_X86_ANDROID_TABLETS	2024-04-13 13:07:31 +02:00
Kconfig	acpi/prmt: Use EFI runtime sandbox to invoke PRM handlers	2023-08-22 10:39:26 +02:00
Makefile	ACPI: Move AMBA bus scan handling into arm64 specific directory	2023-08-01 13:59:25 +02:00
ac.c	ACPI: AC: Install Notify() handler directly	2023-07-14 18:58:34 +02:00
acpi_adxl.c	…
acpi_apd.c	ACPI: processor: Check for null return of devm_kzalloc() in fch_misc_setup()	2023-03-20 18:04:58 +01:00
acpi_cmos_rtc.c	ACPI: TAD: Install SystemCMOS address space handler for ACPI000E	2023-08-17 20:01:24 +02:00
acpi_configfs.c	ACPI: configfs: Make get_header() to return error pointer	2021-07-16 19:20:28 +02:00
acpi_dbg.c	…
acpi_extlog.c	ACPI: extlog: fix NULL pointer dereference check	2024-02-05 20:14:15 +00:00
acpi_ffh.c	ACPI: FFH: Drop the inclusion of linux/arm-smccc.h	2023-06-12 19:28:20 +02:00
acpi_fpdt.c	ACPI: FPDT: properly handle invalid FPDT subtables	2023-11-28 17:20:03 +00:00
acpi_ipmi.c	ACPI: IPMI: replace usage of found with dedicated list iterator variable	2022-03-25 18:01:40 +01:00
acpi_lpat.c	…
acpi_lpit.c	ACPI: LPIT: Avoid u32 multiplication overflow	2024-01-25 15:35:14 -08:00
acpi_lpss.c	ACPI: LPSS: Fix the fractional clock divider flags	2024-01-25 15:35:15 -08:00
acpi_memhotplug.c	mm/memory_hotplug: allow memmap on memory hotplug request to fallback	2023-08-21 13:37:48 -07:00
acpi_pad.c	ACPI: PAD: mark Zhaoxin CPUs NONSTOP TSC correctly	2023-06-12 19:25:55 +02:00
acpi_pcc.c	ACPI: PCC: Setup PCC Opregion handler only if platform interrupt is available	2022-11-23 19:06:56 +01:00
acpi_platform.c	ACPI: platform: Move SMB0001 HID to the header and reuse	2023-07-04 19:28:20 +02:00
acpi_pnp.c	ACPI: PNP: Introduce list of known non-PNP devices	2023-01-17 12:52:11 +01:00
acpi_processor.c	cpu-hotplug: Provide prototypes for arch CPU registration	2023-10-11 14:27:37 +02:00
acpi_tad.c	ACPI: TAD: Install SystemCMOS address space handler for ACPI000E	2023-08-17 20:01:24 +02:00
acpi_video.c	ACPI: video: Add quirk for the Colorful X15 AT 23 Laptop	2024-02-05 20:14:15 +00:00
acpi_watchdog.c	…
battery.c	ACPI: battery: Install Notify() handler directly	2023-07-14 18:58:34 +02:00
bgrt.c	ACPI: BGRT: use static for BGRT_SHOW kobj_attribute defines	2022-04-22 16:55:33 +02:00
blacklist.c	…
bus.c	ACPI: bus: Move acpi_arm_init() to the place of after acpi_ghes_init()	2023-10-18 13:26:30 +02:00
button.c	Merge branches 'acpi-thermal' and 'acpi-button'	2023-06-26 17:20:28 +02:00
container.c	ACPI: container: Use acpi_dev_for_each_child()	2022-06-20 20:33:05 +02:00
cppc_acpi.c	ACPI: CPPC: Fix access width used for PCC registers	2024-05-02 16:32:46 +02:00
custom_method.c	…
debugfs.c	…
device_pm.c	ACPI: PM: Add acpi_device_fix_up_power_children() function	2023-12-03 07:33:07 +01:00
device_sysfs.c	ACPI: sysfs: Fix create_pnp_modalias() and create_of_modalias()	2023-11-20 11:59:03 +01:00
dock.c	ACPI: Use acpi_fetch_acpi_dev() instead of acpi_bus_get_device()	2021-12-17 18:45:51 +01:00
ec.c	ACPI: EC: Add quirk for HP 250 G7 Notebook PC	2023-11-28 17:19:38 +00:00
ec_sys.c	ACPI: EC: Mark the ec_sys write_support param as module_param_hw()	2021-12-01 20:19:30 +01:00
event.c	Merge branches 'acpi-ec', 'acpi-apei', 'acpi-soc' and 'acpi-misc'	2021-06-29 15:51:25 +02:00
evged.c	…
fan.h	ACPI: DPTF: Support Meteor Lake	2022-05-25 15:37:07 +02:00
fan_attr.c	ACPI: fan: Convert to use sysfs_emit_at() API	2022-12-06 12:44:14 +01:00
fan_core.c	ACPI: fan: Bail out if extract package failed	2022-11-23 19:31:57 +01:00
glue.c	ACPI: Fix selecting wrong ACPI fwnode for the iGPU on some Dell laptops	2023-01-10 20:23:48 +01:00
hed.c	ACPI: HED: Install Notify() handler directly	2023-07-14 18:58:34 +02:00
internal.h	Merge branches 'acpi-scan', 'acpi-tad', 'acpi-extlog' and 'acpi-misc'	2023-08-25 20:49:52 +02:00
ioapic.c	ACPI: Silence missing prototype warnings	2022-12-30 19:12:30 +01:00
irq.c	ACPI: irq: Fix incorrect return value in acpi_register_gsi()	2023-10-18 13:11:04 +02:00
nvs.c	Merge branches 'acpi-ec', 'acpi-apei', 'acpi-soc' and 'acpi-misc'	2021-06-29 15:51:25 +02:00
osi.c	ACPI: OSI: Remove Linux-HPI-Hybrid-Graphics _OSI string	2022-08-25 20:18:17 +02:00
osl.c	ACPI: OSL: Make should_use_kmap() 0 for RISC-V	2023-06-01 08:45:00 -07:00
pci_irq.c	ACPI / PCI: fix LPIC IRQ model default PCI IRQ polarity	2022-11-26 12:57:18 +00:00
pci_link.c	ACPI/PCI: Remove useless NULL pointer checks	2022-07-27 21:21:27 +02:00
pci_mcfg.c	PCI: loongson: Add ACPI init support	2022-07-14 15:25:36 -05:00
pci_root.c	PCI/CXL: Export native CXL error reporting control	2023-01-05 13:31:27 -08:00
pci_slot.c	…
pfr_telemetry.c	mm: replace vma->vm_flags direct modifications with modifier calls	2023-02-09 16:51:39 -08:00
pfr_update.c	iov_iter work; most of that is about getting rid of	2022-12-12 18:29:54 -08:00
platform_profile.c	ACPI: platform-profile: call sysfs_notify() from platform_profile_store()	2021-08-16 18:32:02 +02:00
power.c	ACPI: PM: Do not turn of unused power resources on the Toshiba Click Mini	2023-04-27 18:44:43 +02:00
pptt.c	ACPI: PPTT: Fix to avoid sleep in the atomic context when PPTT is absent	2023-03-14 20:34:38 +01:00
prmt.c	acpi/prmt: Use EFI runtime sandbox to invoke PRM handlers	2023-08-22 10:39:26 +02:00
proc.c	proc: remove PDE_DATA() completely	2022-01-22 08:33:37 +02:00
processor_core.c	ACPI: processor: LoongArch: Get physical ID from MADT	2023-08-17 18:39:28 +02:00
processor_driver.c	ACPI: processor: Reorder acpi_processor_driver_init()	2023-03-22 15:20:38 +01:00
processor_idle.c	ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()	2024-03-26 18:19:30 -04:00
processor_pdc.c	ACPI: processor: Fix uninitialized access of buf in acpi_set_pdc_bits()	2023-09-18 12:16:16 +02:00
processor_perflib.c	ACPI: processor: perflib: Avoid updating frequency QoS unnecessarily	2022-12-30 19:10:02 +01:00
processor_thermal.c	ACPI: processor: thermal: Update CPU cooling devices on cpufreq policy changes	2023-03-22 15:20:38 +01:00
processor_throttling.c	ACPI: processor: throttling: remove variable count	2022-10-28 19:02:45 +02:00
property.c	acpi: property: Let args be NULL in __acpi_node_get_property_reference	2024-01-25 15:35:51 -08:00
reboot.c	ACPI: reboot: Unify the message printing	2021-06-07 15:36:46 +02:00
resource.c	ACPI: resource: Add MAIBENBEN X577 to irq1_edge_low_force_override	2024-03-26 18:19:35 -04:00
sbs.c	ACPI: SBS: Fix handling of Smart Battery Selectors	2023-03-30 19:01:05 +02:00
sbshc.c	ACPI: make remove callback of ACPI driver void	2022-11-23 19:11:22 +01:00
sbshc.h	…
scan.c	ACPI: scan: Do not increase dep_unmet for already met dependencies	2024-04-17 11:19:26 +02:00
sleep.c	Revert "ACPI: PM: Block ASUS B1400CEAE from suspend to idle by default"	2024-04-13 13:07:36 +02:00
sleep.h	ACPI: s2idle: Add a new ->check() callback for platform_s2idle_ops	2022-09-09 17:37:40 +02:00
spcr.c	ACPI: SPCR: Amend indentation	2023-03-27 20:50:28 +02:00
sysfs.c	ACPI: sysfs: Enable ACPI sysfs support for CCEL records	2023-03-27 20:43:58 +02:00
tables.c	ACPI: tables: Print RINTC information when MADT is parsed	2023-06-01 08:44:59 -07:00
thermal.c	ACPI: thermal: Fix acpi_thermal_unregister_thermal_zone() cleanup	2024-01-10 17:16:55 +01:00
tiny-power-button.c	ACPI: tiny-power-button: Eliminate the driver notify callback	2023-06-16 19:48:09 +02:00
utils.c	Merge branch 'acpi-uid'	2022-10-03 20:09:22 +02:00
video_detect.c	ACPI: video: Add acpi_backlight=vendor quirk for Toshiba Portégé R100	2023-11-20 11:58:59 +01:00
viot.c	ACPI: VIOT: Initialize the correct IOMMU fwspec	2023-03-30 19:20:42 +02:00
wakeup.c	…