Commit Graph

11 Commits

Author SHA1 Message Date
Jung-uk Kim
9a179dd8be Merge ACPICA 20100121. 2010-01-21 21:14:28 +00:00
Jung-uk Kim
129d3046ef Import ACPICA 20090521. 2009-06-05 18:44:36 +00:00
Nate Lawson
907b6777c1 Re-work Cx handling to be per-cpu and asymmetrical, fixing support on
modern dual-core systems as well.

- Parse the _CST packages for each cpu and track all the states individually,
on a per-cpu basis.

- Revert to generic FADT/P_BLK based Cx control if the _CST package
is not present on all cpus. In that case, the new driver will
still support per-cpu Cx state handling. The driver will determine the
highest Cx level that can be supported by all the cpus and configure the
available Cx state based on that.

- Fixed the case where multiple cpus in the system share the same
registers for Cx state handling. To do that, added a new flag
parameter to the acpi_PkgGas and acpi_bus_alloc_gas functions that
enable the caller to add the RF_SHAREABLE flag.  This flag could also be
useful to other callers (acpi_throttle?) in the tree but this change is
not yet made.

- For Core Duo cpus, both cores seems to be taken out of C3 state when
any one of the cores need to transition out. This broke the short sleep
detection logic.  It is disabled now if there is more than one cpu in
the system for now as it fixed it in my case.  This quirk may need to
be re-enabled later differently.

- Added support to control cx_lowest on a per-cpu basis. There is still
a generic cx_lowest to enable changing cx_lowest for all cpus with a single
sysctl and for ease of use.  Sample output for the new sysctl:

dev.cpu.0.cx_supported: C1/1 C2/1 C3/57
dev.cpu.0.cx_lowest: C3
dev.cpu.0.cx_usage: 0.00% 43.16% 56.83%
dev.cpu.1.cx_supported: C1/1 C2/1 C3/57
dev.cpu.1.cx_lowest: C3
dev.cpu.1.cx_usage: 0.00% 45.65% 54.34%
hw.acpi.cpu.cx_lowest: C3

This work was done by Stephane E. Potvin with some simple reworking by
myself.  Thank you.

Submitted by:	Stephane E. Potvin <sepotvin / videotron.ca>
MFC after:	2 weeks
2007-01-07 21:53:42 +00:00
David E. O'Brien
2a191126de Canonize the include of acpi.h. 2005-09-11 18:39:03 +00:00
Nate Lawson
a3ab9d1e3e Standardize __FBSDID identifiers.
MFC after:	2 days
2005-07-22 23:10:02 +00:00
Yoshihiro Takahashi
d4fcf3cba5 Remove bus_{mem,p}io.h and related code for a micro-optimization on i386
and amd64.  The optimization is a trivial on recent machines.

Reviewed by:	-arch (imp, marcel, dfr)
2005-05-29 04:42:30 +00:00
Nate Lawson
e1c4bf3f42 Convert the acpi_bus_alloc_gas() and acpi_PkgGas() APIs to output the memory
type.  This is needed if the resource is to be released later.  The RID is
still also present, though less necessary since rman_get_rid() can be used
to obtain it from the resource.
2005-02-05 22:28:36 +00:00
Nate Lawson
b68b14adaf Return a special status of "not supported" for functional fixed hardware
since this type of register should be handled by another driver.
2005-02-04 18:07:03 +00:00
Nate Lawson
074a57f560 Add support for packages as the first element of _PRW. This may allow
some machines to enable wake events for more devices although I haven't
seen a system yet that uses this form.  Also, introduce acpi_GetReference()
which retrieves an object reference from various types.
2004-04-09 06:40:03 +00:00
Nate Lawson
21cea91f6e Remove the device_t parameter from package routines that only used it to
print an error message.  Update all callers of the package routines.
2003-12-23 18:26:53 +00:00
Nate Lawson
b5049ddbf0 Add acpi_package.c with routines for validating packages and pulling
various data types from them.  This is loosely based on the acpi_cmbat
macros (by Mike Smith) and will eventually replace them.
2003-11-15 19:20:46 +00:00