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authorTim Wawrzynczak <twawrzynczak@chromium.org>2020-05-29 14:10:53 -0600
committerPatrick Georgi <pgeorgi@google.com>2020-07-07 17:20:33 +0000
commit7eb1136c27a839a18a4224b970b5a61587e29bd7 (patch)
tree6fbc0d9cba8b2f9ccf442af0643326edf663c0d4 /src/drivers/intel/dptf
parentc41f7f15c192d06b5dfdeb1b74f99278cee66110 (diff)
dptf: Add support for Passive Policies
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>
Diffstat (limited to 'src/drivers/intel/dptf')
-rw-r--r--src/drivers/intel/dptf/chip.h1
-rw-r--r--src/drivers/intel/dptf/dptf.c9
2 files changed, 10 insertions, 0 deletions
diff --git a/src/drivers/intel/dptf/chip.h b/src/drivers/intel/dptf/chip.h
index 730d23ed6b..0cd2ad2063 100644
--- a/src/drivers/intel/dptf/chip.h
+++ b/src/drivers/intel/dptf/chip.h
@@ -8,6 +8,7 @@
struct drivers_intel_dptf_config {
struct {
struct dptf_active_policy active[DPTF_MAX_ACTIVE_POLICIES];
+ struct dptf_passive_policy passive[DPTF_MAX_PASSIVE_POLICIES];
} policies;
};
diff --git a/src/drivers/intel/dptf/dptf.c b/src/drivers/intel/dptf/dptf.c
index 20f8d9b4ae..74f481294d 100644
--- a/src/drivers/intel/dptf/dptf.c
+++ b/src/drivers/intel/dptf/dptf.c
@@ -35,6 +35,12 @@ static bool is_participant_used(const struct drivers_intel_dptf_config *config,
if (config->policies.active[i].target == participant)
return true;
+ /* Passive? */
+ for (i = 0; i < DPTF_MAX_PASSIVE_POLICIES; ++i)
+ if (config->policies.passive[i].source == participant ||
+ config->policies.passive[i].target == participant)
+ return true;
+
/* Check fan as well (its use is implicit in the Active policy) */
if (participant == DPTF_FAN && config->policies.active[0].target != DPTF_NONE)
return true;
@@ -55,6 +61,9 @@ static void dptf_fill_ssdt(const struct device *dev)
dptf_write_active_policies(config->policies.active,
DPTF_MAX_ACTIVE_POLICIES);
+ dptf_write_passive_policies(config->policies.passive,
+ DPTF_MAX_PASSIVE_POLICIES);
+
printk(BIOS_INFO, "\\_SB.DPTF: %s at %s\n", dev->chip_ops->name, dev_path(dev));
}