2005-04-17 06:20:36 +08:00
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#
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# Makefile for the Linux ACPI interpreter
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2007-03-08 03:28:00 +08:00
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#
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2005-04-17 06:20:36 +08:00
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2009-01-09 13:13:17 +08:00
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ccflags-y := -Os
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ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT
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2005-04-17 06:20:36 +08:00
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#
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# ACPI Boot-Time Table Parsing
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#
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2005-08-25 00:07:20 +08:00
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obj-y += tables.o
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2005-09-22 13:15:57 +08:00
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obj-$(CONFIG_X86) += blacklist.o
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2005-04-17 06:20:36 +08:00
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#
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# ACPI Core Subsystem (Interpreter)
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#
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2009-03-12 06:37:19 +08:00
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obj-y += acpi.o \
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2009-01-09 13:13:17 +08:00
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acpica/
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2009-03-12 06:37:19 +08:00
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# All the builtin files are in the "acpi." module_param namespace.
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acpi-y += osl.o utils.o reboot.o
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PCI: PCIe AER: honor ACPI HEST FIRMWARE FIRST mode
Feedback from Hidetoshi Seto and Kenji Kaneshige incorporated. This
correctly handles PCI-X bridges, PCIe root ports and endpoints, and
prints debug messages when invalid/reserved types are found in the
HEST. PCI devices not in domain/segment 0 are not represented in
HEST, thus will be ignored.
Today, the PCIe Advanced Error Reporting (AER) driver attaches itself
to every PCIe root port for which BIOS reports it should, via ACPI
_OSC.
However, _OSC alone is insufficient for newer BIOSes. Part of ACPI
4.0 is the new APEI (ACPI Platform Error Interfaces) which is a way
for OS and BIOS to handshake over which errors for which components
each will handle. One table in ACPI 4.0 is the Hardware Error Source
Table (HEST), where BIOS can define that errors for certain PCIe
devices (or all devices), should be handled by BIOS ("Firmware First
mode"), rather than be handled by the OS.
Dell PowerEdge 11G server BIOS defines Firmware First mode in HEST, so
that it may manage such errors, log them to the System Event Log, and
possibly take other actions. The aer driver should honor this, and
not attach itself to devices noted as such.
Furthermore, Kenji Kaneshige reminded us to disallow changing the AER
registers when respecting Firmware First mode. Platform firmware is
expected to manage these, and if changes to them are allowed, it could
break that firmware's behavior.
The HEST parsing code may be replaced in the future by a more
feature-rich implementation. This patch provides the minimum needed
to prevent breakage until that implementation is available.
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Reviewed-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-11-03 01:51:24 +08:00
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acpi-y += hest.o
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2009-03-12 06:37:19 +08:00
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2009-01-09 13:13:17 +08:00
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# sleep related files
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2009-03-12 06:37:19 +08:00
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acpi-y += wakeup.o
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acpi-y += sleep.o
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acpi-$(CONFIG_ACPI_SLEEP) += proc.o
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2009-01-09 13:13:17 +08:00
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2005-04-17 06:20:36 +08:00
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#
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# ACPI Bus and Device Drivers
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#
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2009-03-12 06:37:19 +08:00
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acpi-y += bus.o glue.o
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acpi-y += scan.o
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2009-12-21 03:19:09 +08:00
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acpi-y += processor_pdc.o
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2009-03-12 06:37:19 +08:00
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acpi-y += ec.o
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acpi-$(CONFIG_ACPI_DOCK) += dock.o
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acpi-y += pci_root.o pci_link.o pci_irq.o pci_bind.o
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acpi-y += power.o
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acpi-y += system.o event.o
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acpi-$(CONFIG_ACPI_DEBUG) += debug.o
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acpi-$(CONFIG_ACPI_NUMA) += numa.o
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acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
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ifdef CONFIG_ACPI_VIDEO
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acpi-y += video_detect.o
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2005-04-17 06:20:36 +08:00
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endif
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2009-03-12 06:37:19 +08:00
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# These are (potentially) separate modules
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2005-04-17 06:20:36 +08:00
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obj-$(CONFIG_ACPI_AC) += ac.o
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obj-$(CONFIG_ACPI_BUTTON) += button.o
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obj-$(CONFIG_ACPI_FAN) += fan.o
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2006-10-21 05:30:25 +08:00
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obj-$(CONFIG_ACPI_VIDEO) += video.o
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2008-06-11 05:30:42 +08:00
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obj-$(CONFIG_ACPI_PCI_SLOT) += pci_slot.o
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2005-04-17 06:20:36 +08:00
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obj-$(CONFIG_ACPI_PROCESSOR) += processor.o
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obj-$(CONFIG_ACPI_CONTAINER) += container.o
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obj-$(CONFIG_ACPI_THERMAL) += thermal.o
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2009-03-12 06:37:19 +08:00
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obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o
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2009-01-11 03:19:05 +08:00
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obj-$(CONFIG_ACPI_BATTERY) += battery.o
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2007-09-26 23:43:28 +08:00
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obj-$(CONFIG_ACPI_SBS) += sbshc.o
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2008-02-09 16:22:13 +08:00
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obj-$(CONFIG_ACPI_SBS) += sbs.o
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2009-09-19 03:41:09 +08:00
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obj-$(CONFIG_ACPI_POWER_METER) += power_meter.o
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2009-03-12 06:37:19 +08:00
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2009-04-03 10:49:43 +08:00
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# processor has its own "processor." module_param namespace
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2010-02-23 03:11:08 +08:00
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processor-y := processor_driver.o processor_throttling.o
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2009-04-03 10:49:43 +08:00
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processor-y += processor_idle.o processor_thermal.o
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processor-$(CONFIG_CPU_FREQ) += processor_perflib.o
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ACPI: create Processor Aggregator Device driver
ACPI 4.0 created the logical "processor aggregator device" as
a mechinism for platforms to ask the OS to force otherwise busy
processors to enter (power saving) idle.
The intent is to lower power consumption to ride-out
transient electrical and thermal emergencies,
rather than powering off the server.
On platforms that can save more power/performance via P-states,
the platform will first exhaust P-states before forcing idle.
However, the relative benefit of P-states vs. idle states
is platform dependent, and thus this driver need not know
or care about it.
This driver does not use the kernel's CPU hot-plug mechanism
because after the transient emergency is over, the system must
be returned to its normal state, and hotplug would permanently
break both cpusets and binding.
So to force idle, the driver creates a power saving thread.
The scheduler will migrate the thread to the preferred CPU.
The thread has max priority and has SCHED_RR policy,
so it can occupy one CPU. To save power, the thread will
invoke the deep C-state entry instructions.
To avoid starvation, the thread will sleep 5% of the time
time for every second (current RT scheduler has threshold
to avoid starvation, but if other CPUs are idle,
the CPU can borrow CPU timer from other,
which makes the mechanism not work here)
Vaidyanathan Srinivasan has proposed scheduler enhancements
to allow injecting idle time into the system. This driver doesn't
depend on those enhancements, but could cut over to them
when they are available.
Peter Z. does not favor upstreaming this driver until
the those scheduler enhancements are in place. However,
we favor upstreaming this driver now because it is useful
now, and can be enhanced over time.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
NACKed-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-07-28 06:11:02 +08:00
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obj-$(CONFIG_ACPI_PROCESSOR_AGGREGATOR) += acpi_pad.o
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