leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
9c4aa1eecb
linux/drivers/acpi
History
Lv Zheng 9c4aa1eecb ACPI / sysfs: Provide quirk mechanism to prevent GPE flooding 
Sometimes, the users may require a quirk to be provided from ACPI subsystem
core to prevent a GPE from flooding.
Normally, if a GPE cannot be dispatched, ACPICA core automatically prevents
the GPE from firing. But there are cases the GPE is dispatched by _Lxx/_Exx
provided via AML table, and OSPM is lacking of the knowledge to get
_Lxx/_Exx correctly executed to handle the GPE, thus the GPE flooding may
still occur.

The existing quirk mechanism can be enabled/disabled using the following
commands to prevent such kind of GPE flooding during runtime:
 # echo mask > /sys/firmware/acpi/interrupts/gpe00
 # echo unmask > /sys/firmware/acpi/interrupts/gpe00
To avoid GPE flooding during boot, we need a boot stage mechanism.

This patch provides such a boot stage quirk mechanism to stop this kind of
GPE flooding. This patch doesn't fix any feature gap but since the new
feature gaps could be found in the future endlessly, and can disappear if
the feature gaps are filled, providing a boot parameter rather than a DMI
table should suffice.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=53071
Link: https://bugzilla.kernel.org/show_bug.cgi?id=117481
Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/887793
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-12-26 23:16:39 +01:00
..
acpica ACPICA: Tables: Allow FADT to be customized with virtual address 2016-12-21 02:36:38 +01:00
apei ACPI / APEI / ARM64: APEI initial support for ARM64 2016-12-02 00:24:34 +01:00
arm64 ACPI/IORT: Make dma masks set-up IORT specific 2016-12-06 16:57:33 +01:00
dptf ACPI / platform: Add support for build-in properties 2016-11-10 00:30:29 +01:00
nfit Merge branches 'acpica' and 'acpi-scan' 2016-12-22 14:34:24 +01:00
pmic ACPI / PMIC: remove modular references from non-modular code 2016-07-16 03:03:14 +02:00
ac.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
acpi_amba.c ACPI / amba: Remove CLK_IS_ROOT 2016-04-27 23:42:57 +02:00
acpi_apd.c Merge branches 'acpi-soc', 'acpi-battery', 'acpi-video', 'acpi-cppc' and 'acpi-apei' 2016-12-12 20:48:01 +01:00
acpi_cmos_rtc.c char/genrtc: x86: remove remnants of asm/rtc.h 2016-06-04 00:20:07 +02:00
acpi_configfs.c ACPI: Rename configfs.c to acpi_configfs.c to prevent link error 2016-07-11 15:13:36 +02:00
acpi_dbg.c ACPI / debugger: Fix regression introduced by IS_ERR_VALUE() removal 2016-07-05 23:02:34 +02:00
acpi_extlog.c
acpi_ipmi.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
acpi_lpat.c ACPI / lpat: make it explicitly non-modular 2016-07-16 03:08:10 +02:00
acpi_lpss.c Merge branches 'acpi-soc', 'acpi-battery', 'acpi-video', 'acpi-cppc' and 'acpi-apei' 2016-12-12 20:48:01 +01:00
acpi_memhotplug.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
acpi_pad.c ACPI / PAD: don't register acpi_pad driver if running as Xen dom0 2016-10-12 21:44:04 +02:00
acpi_platform.c Merge branch 'device-properties' 2016-11-11 23:23:02 +01:00
acpi_pnp.c ACPI / PNP: constify device IDs 2016-01-04 22:10:30 +01:00
acpi_processor.c acpi: Validate processor id when mapping the processor 2016-09-21 21:18:40 +02:00
acpi_video.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
acpi_watchdog.c ACPI / watchdog: Add support for WDAT hardware watchdog 2016-09-24 02:10:04 +02:00
battery.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
battery.h
bgrt.c drivers/acpi: make bgrt driver explicitly non-modular 2016-03-09 23:46:07 +01:00
blacklist.c ACPI / blacklist: Make Dell Latitude 3350 ethernet work 2016-11-16 23:01:29 +01:00
bus.c Merge branches 'acpica' and 'acpi-scan' 2016-12-22 14:34:24 +01:00
button.c ACPI / button: Fix an issue in button.lid_init_state=ignore mode 2016-08-31 01:06:20 +02:00
cm_sbs.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
container.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
cppc_acpi.c ACPI / CPPC: Fix per-CPU pointer management in acpi_cppc_processor_probe() 2016-12-12 23:52:34 +01:00
custom_method.c
debugfs.c ACPI: fix acpi_debugfs_init prototype 2015-08-07 02:55:18 +02:00
device_pm.c ACPI / PM: Export acpi_device_fix_up_power() 2016-05-20 15:54:01 +02:00
device_sysfs.c ACPI / property: Hierarchical properties support update 2016-11-24 02:43:47 +01:00
dock.c ACPI / dock: make dock explicitly non-modular 2016-07-16 03:08:08 +02:00
ec_sys.c ACPI / EC: Deny write access unless requested by module param 2016-03-09 23:26:15 +01:00
ec.c ACPI / EC: Fix unused function warning when CONFIG_PM_SLEEP=n 2016-10-10 02:22:20 +02:00
event.c genetlink: mark families as __ro_after_init 2016-10-27 16:16:09 -04:00
evged.c ACPI / GED: make evged.c explicitly non-modular 2016-05-09 22:59:25 +02:00
fan.c ACPI / fan: Fix error reading cur_state 2016-10-10 02:20:43 +02:00
glue.c ACPI: Implement acpi_dma_configure 2016-11-29 15:57:44 +00:00
gsi.c ACPI: Rename acpi_gsi_get_irq_type to acpi_dev_get_irq_type and export symbol 2016-01-01 03:20:25 +01:00
hed.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
internal.h ACPI / sysfs: Provide quirk mechanism to prevent GPE flooding 2016-12-26 23:16:39 +01:00
ioapic.c x86/ioapic: Fix IOAPIC failing to request resource 2016-08-18 11:45:19 +02:00
Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2016-12-14 11:12:25 -08:00
Makefile TTY/Serial patches for 4.9-rc1 2016-10-03 20:11:49 -07:00
numa.c ACPI/NUMA: Do not map pxm to node when NUMA is turned off 2016-12-15 11:32:32 +01:00
nvs.c
osi.c ACPI / osi: Collect _OSI handling into one single file 2016-05-05 00:13:53 +02:00
osl.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
pci_irq.c ACPI / PCI: fix GIC irq model default PCI IRQ polarity 2016-09-10 02:50:50 +02:00
pci_link.c ACPI/PCI: pci_link: Include PIRQ_PENALTY_PCI_USING for ISA IRQs 2016-10-24 14:18:14 +02:00
pci_mcfg.c PCI: Add MCFG quirks for X-Gene host controller 2016-12-06 13:45:50 -06:00
pci_root.c x86/ioapic: Support hot-removal of IOAPICs present during boot 2016-08-18 11:45:18 +02:00
pci_slot.c ACPI / PCI: make pci_slot explicitly non-modular 2016-07-16 03:05:29 +02:00
power.c Merge branch 'acpi-pm' 2015-09-01 03:38:43 +02:00
proc.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
processor_core.c ACPI / osl: Remove acpi_get_table_with_size()/early_acpi_os_unmap_memory() users 2016-12-21 02:36:38 +01:00
processor_driver.c Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-10-03 19:43:08 -07:00
processor_idle.c x86/amd: Simplify AMD E400 aware idle routine 2016-12-09 21:23:21 +01:00
processor_pdc.c
processor_perflib.c ACPI / processor: Make acpi_processor_ppc_has_changed() void 2016-11-21 14:35:42 +01:00
processor_thermal.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
processor_throttling.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
property.c ACPI / property: Hierarchical properties support update 2016-11-24 02:43:47 +01:00
reboot.c
resource.c ACPI: Add acpi_resource_consumer() to find device that claims a resource 2016-12-01 14:59:32 -06:00
sbs.c ACPI / SBS: fix inconsistent indenting inside if statement 2016-01-04 22:14:27 +01:00
sbshc.c Revert "ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook" 2015-11-16 23:26:45 +01:00
sbshc.h
scan.c ACPI / sysfs: Provide quirk mechanism to prevent GPE flooding 2016-12-26 23:16:39 +01:00
sleep.c Merge branches 'pm-sleep' and 'powercap' 2016-12-12 20:46:35 +01:00
sleep.h ACPICA: Drop Linux-specific waking vector functions 2016-01-04 22:05:20 +01:00
spcr.c ACPI / osl: Remove acpi_get_table_with_size()/early_acpi_os_unmap_memory() users 2016-12-21 02:36:38 +01:00
sysfs.c ACPI / sysfs: Provide quirk mechanism to prevent GPE flooding 2016-12-26 23:16:39 +01:00
tables.c ACPI / osl: Remove acpi_get_table_with_size()/early_acpi_os_unmap_memory() users 2016-12-21 02:36:38 +01:00
thermal.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
utils.c nfit: make DIMM DSMs optional 2016-07-19 12:32:39 -07:00
video_detect.c ACPI / video: Add force_native quirk for HP Pavilion dv6 2016-11-29 23:27:17 +01:00
wakeup.c