Lines Matching +full:pci +full:- +full:to +full:- +full:cpu

15 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
43 PnP and PCI BIOS), as well as power management (superseding APM) and
57 driver is intended to provide power management without user intervention.
59 used to modify or monitor
65 .Bl -tag -width indent
70 .It Va dev.cpu.N.cx_usage
73 .Va dev.cpu.N.cx_lowest
75 .It Va dev.cpu.N.cx_lowest
76 Lowest Cx state to use for idling the CPU.
81 To enable ACPI CPU idling control,
83 should be set to
87 .It Va dev.cpu.N.cx_supported
88 List of supported CPU idle states and their transition latency
93 is equivalent to the ia32
101 but additionally requires bus mastering to be disabled.
110 .It Va dev.cpu.N.cx_method
111 List of supported CPU idle states and their transition methods, as
118 exiting to legacy mode first.
121 Use the ACPI Reset Register capability to reboot the system.
140 (power-off nicely).
149 system to disk.
150 Otherwise, the OS is responsible for suspending to disk
161 (suspend-to-RAM).
163 Wait this number of seconds between preparing the system to suspend and
170 .Bl -tag -width indent
172 Quick suspend to RAM.
173 The CPU enters a lower power state, but most peripherals are left running.
180 Suspend to RAM.
184 Suspend to disk.
206 .Bl -tag -width indent
210 Name of the DSDT table to load, if loading is enabled.
218 Limiting this to 1 may help work around various BIOSes that cannot
228 Set this to 1 to disable all of ACPI.
229 If ACPI has been disabled on your system due to a blacklist entry for your
230 BIOS, you can set this to 0 to re-enable ACPI for testing.
232 Delay in milliseconds to wait for the EC to respond.
236 Override the assumed memory starting address for PCI host bridges.
238 Install or remove OS interface(s) to control return value of
251 Multiple interfaces can be specified in a comma-separated list and
260 Forces active-lo polarity for edge-triggered ISA interrupts.
261 Some older systems incorrectly specify active-lo polarity for ISA
267 This can fix some graphics cards that have problems such as LCD white-out
280 .It Va hw.pci.link.%s.%d.irq
281 Override the interrupt to use for this link and index.
290 Most PCI links only have one IRQ resource, so the below form should be used.
291 .It Va hw.pci.link.%s.irq
292 Override the interrupt to use.
304 For machines known not to work with
310 In the future, it will have more granularity to control features (the
319 Before trying this, consider updating your BIOS to a more recent version that
328 Some i386 machines totally fail to operate with some or all of ACPI disabled.
330 Disabling all or part of ACPI on non-i386 platforms (i.e., platforms where
331 ACPI support is mandatory) may result in a non-functional system.
337 To disable a sub-driver, list it in the kernel
342 ACPI sub-devices and features that can be disabled:
343 .Bl -tag -width ".Li sysresource"
355 Attaches standard ACPI sub-drivers and devices enumerated in the
357 Disabling this has a similar effect to disabling
366 Control-method batteries device.
367 .It Li cpu
369 Supports CPU power-saving and speed-setting functions.
372 Supports the ACPI Embedded Controller interface, used to communicate
377 typically as a child of a PCI bus.
381 system to sleep.
384 Do not ask firmware for available x86-vendor specific methods to enter
387 Only query and use the generic I/O-based entrance method.
388 The knob is provided to work around inconsistencies in the tables
395 .It Li pci
397 Supports Host to PCI bridges.
400 Performs PCI interrupt routing.
403 Pseudo-devices containing resources which ACPI claims.
409 Implements a timecounter using the ACPI fixed-frequency timer.
419 It is also possible to avoid portions of the ACPI namespace which
421 the region to be avoided in the kernel environment variable
435 Both layers and levels are specified as a whitespace-separated list of
441 The first set of layers is for ACPI-CA components, and the second is for
444 The ACPI-CA layer descriptions include the prefix for the files they
445 refer to.
448 .Bl -tag -compact -width ".Li ACPI_CA_DISASSEMBLER"
474 All the above ACPI-CA components
478 Control-method battery driver
480 ACPI, ISA, and PCI bus drivers
488 Platform-specific driver for hotkeys, LED, etc.
505 .Bl -tag -compact -width ".Li ACPI_LV_AML_DISASSEMBLE"
509 Stores to objects
557 For example, the following configuration is a good way to gather initial
559 It enables debug output for both ACPI-CA and the
562 .Bd -literal -offset indent
570 .Fx Ns -local
580 provides a way to override it with your own AML code to work around
584 In order to load your AML code, you must edit
587 .Bd -literal -offset indent
592 In order to prepare your AML code, you will need the
619 .An -nosplit
623 The following people made notable contributions to the ACPI subsystem
631 the ACPI-jp mailing list at
632 .Aq Mt acpi-jp@jp.FreeBSD.org ,
639 break suspend/resume, or prevent devices from operating properly due to
641 Upgrade your BIOS to the latest version available from the vendor before