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Vanshidhar Konda 3ecf2249e6 ACPI: CPPC: Fix access width used for PCC registers 
commit f489c94802 upstream.

commit 2f4a4d63a1 ("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: 2f4a4d63a1 ("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_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_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
…
ec.c ACPI: EC: Add quirk for HP 250 G7 Notebook PC 2023-11-28 17:19:38 +00:00
ec_sys.c
…
event.c
…
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
…
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
…
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
…
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
…
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
…