This change generates the DPTF TCHG.PPSS table in the SSDT. This table
describes different charging rates which are available to use. DPTF
can pick different rates in order to passively cool (or not) the
system.
BUG=b:143539650
TEST=compiles
Change-Id: I6df6bfbac628fa4e4d313e38b8e6c53fce70a7f2
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41888
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
This patch adds support for DPTF Critical Policies, which are consist
of Method definitions only. They are `_CRT` and `_HOT`, which are
defined as temperature thresholds that, when exceeded, will execute a
graceful suspend or a graceful shutdown, respectively.
BUG=b:143539650
TEST=compiles
Change-Id: I711ecdcf17ae8f6e653f33069201da4515ace85e
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41887
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
This patch adds support for emitting the Thermal Relationship Table, as
well as _PSV Methods, which together form the basis for DPTF Passive
Policies.
BUG=b:143539650
TEST=compiles
Change-Id: I82e1c9022999b0a2a733aa6cd9c98a850e6f5408
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41886
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
In this DPTF implementation, the participant device objects are written
into the DSDT with only minimal Names attached (_HID/_ADR, _STA, _UID,
PTYP, and _STR). All other Methods & Names will be written into the
SSDT. If a device is not used in any policy, then its _STA is set to
return 0 ("off").
BUG=b:143539650
TEST=Compiles.
Change-Id: Ief69a57adce9ee0b19056ce6a11ed8a5b51b3f87
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41884
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Currently, configuring and reviewing DPTF parameters is difficult
because DPTF tables and methods are defined in static ASL files, and are
littered with #ifdefs which both define parameters and influence
behavior (e.g., whether a method is included or not). This patch train
is an effort to bring DPTF support to our ACPI DSDT/SSDT generation
framework.
This first patch is very minimal, and includes only creation of the
DPTF device (in the DSDT).
BUG=b:143539650
TEST=compiles (later tests get more comprehensive).
Change-Id: I14df9f422c911677aeea25552ac1822a9462c58a
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41883
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
