CVS log for src/sys/dev/acpi/acpivar.h

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Pull up following revision(s) (requested by riastradh in ticket #639):

	sys/dev/acpi/acpivar.h: revision 1.90
	sys/dev/acpi/files.acpi: revision 1.129
	sys/dev/acpi/acpi.c: revision 1.299
	sys/dev/acpi/files.acpi: revision 1.130

acpi(4): New iattr `apeibus' for attaching an APEI driver.

APEI is the ACPI Platform Error Interface, a standard (if very
complicated) interface for reporting hardware errors to the OS.
Firmware support for APEI is presented through the ACPI tables BERT
(Boot Error Record Table), ERST (Error Record Serialization Table),
EINJ (Error Injection Table), and HEST (Hardware Error Source Table),
rather than through nodes in the ACPI device tree, so it can't just
attach through the existing acpinodebus iattr and instead requires a
special pseudo-bus like acpiwdrt(4).

No driver yet -- this is just the hook to attach one in a module.

The new member sc_apei of struct acpi_softc is placed at the end of
the structure so that this change can be safely pulled up to release
branches without risk to ABI compatibility in existing modules such
as acpiverbose.kmod which may rely on the layout (but not size) of
struct acpi_softc.

PR kern/58046

acpi(4): Make apeibus actually work as an iattr.
PR kern/58046

acpi(4): New iattr `apeibus' for attaching an APEI driver.

APEI is the ACPI Platform Error Interface, a standard (if very
complicated) interface for reporting hardware errors to the OS.

Firmware support for APEI is presented through the ACPI tables BERT
(Boot Error Record Table), ERST (Error Record Serialization Table),
EINJ (Error Injection Table), and HEST (Hardware Error Source Table),
rather than through nodes in the ACPI device tree, so it can't just
attach through the existing acpinodebus iattr and instead requires a
special pseudo-bus like acpiwdrt(4).

No driver yet -- this is just the hook to attach one in a module.

The new member sc_apei of struct acpi_softc is placed at the end of
the structure so that this change can be safely pulled up to release
branches without risk to ABI compatibility in existing modules such
as acpiverbose.kmod which may rely on the layout (but not size) of
struct acpi_softc.

PR kern/58046

acpi: Support DT link device ID

The PRP0001 device ID is used to tell the OS to match a driver against
the "compatible" _DSD property. Make acpi_compatible_match aware of this
special device ID and match device compatible entries against the
compatible property when applicable.

Fix struct member prefix to be consistent.  same code before and after.

acpi: Add acpi_resource_parse_any().

Like acpi_resource_parse(), but doesn't exclude "produced" resources.

sync with head

Sync with HEAD.

- Define a device call for PCI bus instances to fetch a direct child's
  device handle given the device's device/function #s (extracted from
  a pcitag_t).  Use it to associate the handle with the child device
  at config_found() time.
- Implement this device call for ACPI and OpenFirmware.
- Enable the OpenFirmware variant for evbarm FDT, macppc, ofppc, sparc64.
- Obsolete acpi_device_register(); it is no longer needed.
- Obsolete setting the OpenFirmware handle in PCI devices in the
  sparc64 device_register(); it is no longer needed.

Sync with HEAD.

Add acpi_device_register().  Just a placeholder for now.

Introduce weighted matching for ACPI autoconfiguration, and provide
acpi_compatible_match() based around device_compatible_entry.  Matches
against _HID score big, matches against _CID are weighted in the
standard most-to-least-specific ordering, less than _HID.

Also provide a maching value for _CLS, that's always less than _HID
and _CID matches, and use that in acpi_match_class().

Also provide acpi_compatible_lookup(), that returing the matching
entry based on the same criteria.

Sync w/ HEAD.

acpi: remove unused acpi_quirks_osi_* functions

Merge changes from current as of 20200406

Sync with head.

Add support for Arm N1 SDP PCIe host controller.

The N1 SDP has a few bugs that we need to work around:
 - PCIe root port config space lives in a non-standard location.
 - Access to PCIe config space of devices that do not exist results in
   an sync SError. Firmware creates a "known devices" table at a fixed
   physical address that we use to filter PCI conf access to only known
   devices.

This change splits the Arm ACPI PCI quirks into separate files for each
host controller, and allows per-segment quirks to be applied.

These changes exposed some bugs in the MI ACPI layer related to
multi-segment support. The MI ACPI PCI code was using a shared PCI
chipset tag to access devices, and these accesses can happen before our
PCI host bridge drivers are attached! The global chipset tag is now gone,
and an MD callback can provide a custom tag on a per-segment basis.

Rely on 32/64-bit overflow to calculate translation offsets. Store this
as a separate ar_xbase field in acpi_mem instead of having separate
ar_offset and ar_decode fields.

Include device decoding type in acpi_mem resources

Fetch bus_dma tags when acpi devnodes are created. They do not change
and this allows MD code to create more complex tags without being
concerned with the tag being destroyed later. While here, capture
translations offsets for address32/address64 resources.

Allow MD code to provide custom bus_dma tags on a per-node basis. On Arm
this is required to return non-coherent bus_dma tags for device nodes with
_CCA=0

Sync with HEAD

Sync with HEAD, resolve a couple of conflicts

Add support for 64-bit memory resources.

Sync with head

Add helper functions for walking GTDT subtables.

Sync with HEAD

introduce acpi_device_present() to replace the previous _STA checks.

update from HEAD

Sync with HEAD

Pass bus_dma(9) tag to allow for porting sdhc(4) at acpi.

add support for reset registers in PCI config space

Catchup with rmind-uvmplock merge.

Rename acpi_get_node() to acpi_match_node() for consistency.

Do not entirely bypass the printfs during resource parsing, as many drivers
rely on those for their autoconf(9) messages. Instead add a "quiet" option.

Try to attach hpet(4) also via a specific HPET table. Fixes PR kern/43702.

Sync with HEAD.

sync with head

Sync with HEAD

Add quirk support for _OSI strings introduced in ACPICA 20110211. While
here, clean up acpi_probe() and the quirk code. Remove #ifdef ACPI_DEBUGGER.

As explained in the new ACPICA documentation, as of ACPICA 20101207, the
_PRW methods are no longer automatically executed as part of the ACPICA
initialization. Refactor and rewrite the wake-device code to account this.

Add a driver for ACPI "Watchdog Resource Table" devices.

  acpiwdrt0 at acpi0: mem 0xfed01000,0xfed01004
  acpiwdrt0: PCI 0:000:00:0 vendor 0x1106 product 0x3337
  acpiwdrt0: watchdog interval 1-1023 sec.

Scan for docking stations.

Sync with HEAD.

An _ADR object is not required for PCI root bridges.  To solve
this, the structure acpi_pciinfo now tells whether the ACPI
device node is a PCI bridge, a regular PCI device, or both.

Problem reported by jmcneill@, who also suggested the solution.

ok jmcneill@, jruoho@

Simplify acpi_enter_sleep_state() and guard it against NULL pointer
dereferences. Try to avoid referencing the global acpi_softc, which should
really be static or at least internal to acpi(4).

Sync with HEAD (-D20101022).

sync with head

Do not discard ACPI PCI addresses with function number 0xFFFF: the
ACPI specification allows them (ACPI 4.0a, p. 200).

ok jruoho@

Add support for blacklisting ACPI BIOS implementations by year. By default,
don't use ACPI on BIOS which advertise release years <= 2000. This
can be changed by setting option ACPI_BLACKLIST_YEAR=0 or by setting
acpi_force_load=1.

Sync with HEAD.

sync with head.

Do not try to disable ACPI if we can not enter to legacy mode. While it is
safe to call AcpiDisable() even if a system operates only in ACPI mode, this
leads to unpleasantly verbose error messages in ACPICA.

Reorganize: also the APIC tables will be dumped in ACPIVERBOSE, and the
callback functions will be modified to be suitable also with other tables.

Simplify the acpiverbose module.

Remove the acpiwmi(4) dump from the ACPIVERBOSE module. Instead of this
complex solution, just use aprint_debug(9) in the driver.

sync with head

Add and organize some comments. Add also ACPI_DEVICE_EJECT constant to
indicate "ejectable" devices such as docking stations.

Update acpiverbose module to use module_autoload() rather than module_load().
Load the module right before each attempt to use its features, and let the
module subsystem handle unloading.

Remove trailing white space.

Extract ACPIVERBOSE into a kernel module.  The module can be builtin
by defining 'options ACPIVERBOSE' in the kernel config file (no change
from current behavior), or it can be loaded at boot time on those
architectures that support the boot loader's "load" command.

ACPIVERBOSE also includes code to dump acpi/wmi data.

sync with head

Sync with HEAD.

Include the new prototype for acpi_enter_sleep_state().

Remove a redundant prototype. A leftover from the previous commit.

Merge new code for ACPI power resources.

The old code served us well, but a major overhaul would have been needed for
it to cope with the increased demands of the code -- and the specifications.

ok jmcneill@, pgoyette@

From Gregoire Sutre: rework the ACPI PCI support. This makes ACPI to
correctly pick PCI segment groups, PCI bus numbers, PCI root bridges,
PCI-to-PCI bridges, and PCI devices, among other things. In short: it is
more robust than the old code or anything in sys/arch/x86/x86/mpacpi.c.

ok cegger@, jmcneill@

From Gregoire Sutre:

  Modify the main ACPI namespace scan by including a parent-child
  relationship for each node. The result is a bi-directional tree.

ok jmcneill@

As discussed with jmcneill@, install a global "bus notification handler"
that receives all notifications and deliver notifications to drivers via it.

Reorganize the main file: add several missing prototypes, move the functions
around so that they appear in their logical order and place, etc. In
addition, split the utility functions to a separate file.

No functional change. Ok jmcneill@.

Remove some unused and global variables. Make the code more readable. Deny
invalid writes to machdep.sleep_state. Cosmetics. No functional change.

Rework the sysctl-support.

Changes:

	hw.wake			->	hw.acpi.wake
	hw.acpi.debug_layer	->	hw.acpi.debug.layer
	hw.acpi.debug_level	->	hw.acpi.debug.level

Additions:

	hw.acpi.stat.gpe	# Number of dispatched GPEs
	hw.acpi.stat.sci	# Number of SCI interrupts
	hw.acpi.stat.fixed	# Number of fixed events
	hw.acpi.stat.method	# Number of executed methods

ok jmcneill@

With the intent of making 'struct acpi_devnode' as the central place for
information related to ACPI device nodes: (a) introduce a generic scan
function for ACPI device driver "capabilities", and (b) eliminate local data
structures from ACPI wake-devices. Discussed with jmcneill@.

sync with head

Move the ACPI_ACTIVATE_DEV block to one place. While there, provide missing
prototype for a function, try to make the code more simple, guard against a
potential NULL pointer dereference, and improve printing.

No functional change intended.

Remove the namespace scopes.

These are neither used nor useful beyond the parser and interpreter.

ok jmcneill@, joerg@

Protect all header files against multiple inclusions.

Add dynamic debug options for ACPI_DEBUG kernels.

ok jmcneill@, pooka@, pgoyette@

Introduce acpi_eval_reference_handle() --

an utility function to evaluate reference handles from package elements.

ok jmcneill@, pgoyette@

Introduce acpi_eval_set_integer().
Use it in various acpi drivers to simplify code.
Patch presented on tech-kern@:
http://mail-index.netbsd.org/tech-kern/2009/11/28/msg006552.html

No comments.

XXX Is there an acpi(9) manpage?

u_int32_t -> uint32_t
struct device * -> device_t

sync with head

Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.

struct device * -> device_t, no functional changes intended.

sync with head.

Sync with HEAD.

Refactor slightly to create acpi_rescan(), a hook for rescanning the
devices that attach at acpi(4).

Begin deriving an acpi(4) device-detachment hook, acpi_detach(), from
acpi_attach().  The code between #if 0 and #endif still needs to be
turned to the opposite calls (enables to disables, maps to unmaps,
attaches to detaches), which should be run in the opposite order.
Somebody with deep ACPI knowledge can probably finish this off without
too much trouble.

Sync with HEAD.

Sync with HEAD.

Update haad-dm branch to haad-dm-base2.

Pull up following revision(s) (requested by joerg in ticket #125):
	sys/arch/x86/acpi/acpi_wakeup.c: revision 1.11
	sys/dev/acpi/acpi_pci_link.c: revision 1.14
	sys/dev/acpi/acpivar.h: revision 1.34
On resum-from-RAM explicitly restore PCI link device state before
reenabling interrupts. At least one BIOS doesn't do this automatically
as reported by Christoph Egger.

On resum-from-RAM explicitly restore PCI link device state before
reenabling interrupts. At least one BIOS doesn't do this automatically
as reported by Christoph Egger.

Sync with HEAD.

Sync with HEAD.

Sync with wrstuden-revivesa-base-2.

Sync with head.

Introduce acpi_clear_wake_gpe() to undo acpi_set_wake_gpe().
Extract common code from acpi_clear_wake_gpe() and acpi_set_wake_gpe(),
creating acpi_wake_gpe_helper().

Sync with HEAD.

Split device_t and softc

sync with head

sync with HEAD

Sync with head.

sync with head.

Merge jmcneill-pm branch.

sync with HEAD

sync with head.

Sync with HEAD.

Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.

Sync with HEAD.

Sync with head.

machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

Update to ACPI-CA 20070320

Rewrite the ACPI Embedded Controller handler to use pure event driven
operation. On suspend a special flag is set to force explicit polling
as AcpiLeaveSleep accesses the interrupt before GPE handling is
restored. The driver uses a kernel thread to handle GPE queries and
mutex/condvar for synchronisation.

Split the ACPI EC into two drivers, one that is attached directly by
acpi.c for the ECDT driven attachment and the normal acpiec for late
attachment. Share almost all code between this two drivers. If acpiecdt
is attached, acpiec is returning. This was discussed with cube@ and is
the best solution so far.

sync with head.

Sync with HEAD.

Sync with HEAD.

Sync with HEAD.

Print ACPI device name in a way that Jared McNeill and I find prettier.
I like it better because I get to see the name of the device as it appears
in the DSDT, which sometimes makes sense and that way it's easier to locate
the relevant code when debugging.

E.g.:

PIC (PNP0000) [AT Interrupt Controller] at acpipcib0 not configured
DMAD (PNP0200) [AT DMA Controller] at acpipcib0 not configured
attimer0 at acpipcib0 (TMR, PNP0100): AT Timer
RTC0 (PNP0B00) [AT Real-Time Clock] at acpipcib0 not configured
pckbc0 at acpipcib0 (PS2K, PNP0303): kbd port
acpibat0 at acpi0 (BAT0, PNP0C0A-0): ACPI Battery (Control Method)

Sync with head.

sync with head.

sync with head.

Introduce acpi_check() to inform the caller whether the acpi driver is
still enabled, as it could have been disabled through USERCONF.

Use it in amd64 and i386 mainbus code and skip all ACPI processing in case
it is disabled.

Sync with head.

sync with head

Define the "broken IRQ0 override" quirk, and add it for one type of ACPI
BIOS.

sync with head

sync with head

Merge from HEAD.

Apply fvdl's acpi pci interrupt configuration code.
- MPACPI is no more.
- MPACPI_SCANPCI -> ACPI_SCANPCI

sync with head.

Move the (one liner) logic of AcpiOsGetRootPointer() out of acpica/Osd to
acpi.c and take the opportunity to create a sysctl node that contains the
address of the main ACPI table.

The name of the node, "machdep.acpi_root", is questionable but matches the
one FreeBSD has, which will make it easier to port their acpidump(8)
program.

merge ktrace-lwp.

Sync with HEAD. Here we go again...

kill the "busname" attach arg, it is not really needed

Sprinkle const freely and delete unnecessary casts.

Merge changes for ACPI-CA 20050408

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

ThermalZone improvement work by lha at stacken.kth.se, inspired from
FreeBSD thermal zone code.  Minor style fixes and bugfixes by me.

Pullup rev 1.17 (requested by kochi in ticket #191)

Add ACPI ECDT (Embedded Controller Description Table) support.
This will enable usage of EC in early stage of ACPI initialization.

Pullup rev 1.16 (requested by kochi in ticket #191)

Add ACPI ECDT (Embedded Controller Description Table) support.
This will enable usage of EC in early stage of ACPI initialization.

Clean up memory allocated during autoconfiguration

change acpi_resource_parse API to support _PRS parsing as well as _CRS

Only call acpiec_early_attach() in "acpi.c" if the kernel is configured
to include the "acpiec" device.

Add ACPI ECDT (Embedded Controller Description Table) support.
This will enable usage of EC in early stage of ACPI initialization.

some int->ACPI_INTEGER to make it compile on amd64 again

* now the size of ACPI_DEVICE_INFO is variable:
  it can now accomodate multiple _CIDs
  sizeof(ACPI_DEVICE_INFO) should not be used
* make ad_devinfo member in acpi_devnode a pointer
* implement acpi_match_hid() to simplify matching devices;
  _CIDs are also taken into account now as well as _HID

Catch up with ABI changes in ACPI-CA.  Some additional changes to acpi_bat to
set the VALID bits correctly, so we don't report garbage for missing batteries.

function prototype must not have variable name

Add quirk handling to ACPI. First quirk entry is "PTLTD " rev 0x06040000,
which gives problems with PCI bus finding; the object hierarchy doesn't
match the real world for some systems, most notably SuperMicro boards.
Linux has this one blacklisted as well.

* Don't do the ACPI_PCI_FIXUP unless it is explicitly enabled in
  the kernel config file.  That code makes a total mess of any
  system with multiple PCI busses.
* Rework the way buttons are handled; register them with sysmon,
  and let it take the appropriate action.  This lets us gracefully
  shut down when the power button is pressed.

- add acpi_acquire_global_lock()/acpi_release_global_lock()/
  acpi_is_global_locked() functions.
  AcpiGlobalLock() API should be used to acquire lock between BIOS and OS.
  This API cannot be used to lock between threads of the OS side,
  because this function immediately returns if the lock is already acquired
  by the OS.  c.f. AcpiEvAcquireGlobalLock()@evmisc.c

- make sure that acpiec driver uses above functions.

- use ACPI_ALLOCATE_BUFFER instead of twice calls of AcpiEvaluateObject(),
  in acpi_eval_string()/acpi_eval_struct().
  Twice AcpiEvaluateObject() calls may cause twice side effects
  to ACPI machine / hardware and this may be wrong in some cases.

Sync with HEAD.

Make sure we record the type of irq as well as its number.

Pass ISA chipset information through to ACPI devices, to allow for porting
of pnpbios(4) glue to acpi(4).

sync kqueue branch with HEAD

catch up with -current.

Catch up to -current.

Another part of the PCI fixup change.

catch up with -current.

catch up with -current on kqueue branch

Catch up to -current.

add MI part of ACPI sleep state transition code.
However, we have no interface to use it, and we also need device driver
support. (e.g. D2/D3 support for PCI)

Catch up to -current.
(CVS: It's not just a program. It's an adventure!)

Add acpi_eval_struct, to evaluate a complex data structure.

#if 0-out a half-fixed acpi_eval_string() and #if 0 the only call to it.
(Previous code referenced an uninitialized local variable and couldn't
have possibly worked).

Sync kqueue branch with -current.

Catch up to -current.

Catch up with -current.

file acpivar.h was added on branch kqueue on 2002-01-10 19:52:54 +0000

file acpivar.h was added on branch nathanw_sa on 2001-10-08 21:18:06 +0000

file acpivar.h was added on branch thorpej-devvp on 2001-10-01 12:44:17 +0000

- Add an acpi_evaluate_string() to evaluate string objects.
- In acpi_print(), try to evaluate the _STR object, and print
  it if the device is not configured.
- Make this compile without ACPI_DEBUG, from Masanori Kanaoka.

Add code to parse ACPI bus resources.

Add some basic ACPI probing framework.  This is far from complete,
it is merely a work in progress.