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| author | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-05-29 14:19:15 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-07-07 17:21:07 +0000 |
| commit | 3a9cde9ab630fa34240b16f7e6ae10b5a61aa67e (patch) | |
| tree | b85c33d30756850725c2866e8394b442a5faca5c /src/acpi | |
| parent | 7eb1136c27a839a18a4224b970b5a61587e29bd7 (diff) | |
| download | coreboot-3a9cde9ab630fa34240b16f7e6ae10b5a61aa67e.tar.xz | |
dptf: Add support for Critical Policies
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>
Diffstat (limited to 'src/acpi')
| -rw-r--r-- | src/acpi/acpigen_dptf.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/acpi/acpigen_dptf.c b/src/acpi/acpigen_dptf.c index abd99c1394..88cf386bc8 100644 --- a/src/acpi/acpigen_dptf.c +++ b/src/acpi/acpigen_dptf.c @@ -262,3 +262,21 @@ void dptf_write_passive_policies(const struct dptf_passive_policy *policies, int write_thermal_relationship_table(policies, max_count); write_all_PSV(policies, max_count); } + +void dptf_write_critical_policies(const struct dptf_critical_policy *policies, int max_count) +{ + int i; + + for (i = 0; i < max_count; ++i) { + if (policies[i].source == DPTF_NONE) + break; + + dptf_write_scope(policies[i].source); + + /* Choose _CRT or _HOT */ + write_simple_return_method(policies[i].type == DPTF_CRITICAL_SHUTDOWN ? + "_CRT" : "_HOT", to_acpi_temp(policies[i].temp)); + + acpigen_pop_len(); /* Scope */ + } +} |