Felix Singer submitted this change.

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Approvals: build bot (Jenkins): Verified Matt DeVillier: Looks good to me, approved
soc/intel/cannonlake: Report correct latencies for C states

The C_STATE_LATENCY_FROM_LAT_REG() macro uses values that we also
write into the respective MSRs in configure_c_states(). Match the
indices to those used there.

Change-Id: Ie01a53d6f06bc02a53d95e390e16e9963f4c65ee
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80167
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
---
M src/soc/intel/cannonlake/acpi.c
1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/src/soc/intel/cannonlake/acpi.c b/src/soc/intel/cannonlake/acpi.c
index 1545d19..1bd81c4 100644
--- a/src/soc/intel/cannonlake/acpi.c
+++ b/src/soc/intel/cannonlake/acpi.c
@@ -53,47 +53,47 @@
.resource = MWAIT_RES(0, 1),
},
[C_STATE_C6_SHORT_LAT] = {
- .latency = C_STATE_LATENCY_FROM_LAT_REG(0),
+ .latency = C_STATE_LATENCY_FROM_LAT_REG(1),
.power = C6_POWER,
.resource = MWAIT_RES(2, 0),
},
[C_STATE_C6_LONG_LAT] = {
- .latency = C_STATE_LATENCY_FROM_LAT_REG(0),
+ .latency = C_STATE_LATENCY_FROM_LAT_REG(2),
.power = C6_POWER,
.resource = MWAIT_RES(2, 1),
},
[C_STATE_C7_SHORT_LAT] = {
- .latency = C_STATE_LATENCY_FROM_LAT_REG(0),
+ .latency = C_STATE_LATENCY_FROM_LAT_REG(1),
.power = C7_POWER,
.resource = MWAIT_RES(3, 0),
},
[C_STATE_C7_LONG_LAT] = {
- .latency = C_STATE_LATENCY_FROM_LAT_REG(0),
+ .latency = C_STATE_LATENCY_FROM_LAT_REG(2),
.power = C7_POWER,
.resource = MWAIT_RES(3, 1),
},
[C_STATE_C7S_SHORT_LAT] = {
- .latency = C_STATE_LATENCY_FROM_LAT_REG(0),
+ .latency = C_STATE_LATENCY_FROM_LAT_REG(1),
.power = C7_POWER,
.resource = MWAIT_RES(3, 2),
},
[C_STATE_C7S_LONG_LAT] = {
- .latency = C_STATE_LATENCY_FROM_LAT_REG(0),
+ .latency = C_STATE_LATENCY_FROM_LAT_REG(2),
.power = C7_POWER,
.resource = MWAIT_RES(3, 3),
},
[C_STATE_C8] = {
- .latency = C_STATE_LATENCY_FROM_LAT_REG(0),
+ .latency = C_STATE_LATENCY_FROM_LAT_REG(3),
.power = C8_POWER,
.resource = MWAIT_RES(4, 0),
},
[C_STATE_C9] = {
- .latency = C_STATE_LATENCY_FROM_LAT_REG(0),
+ .latency = C_STATE_LATENCY_FROM_LAT_REG(4),
.power = C9_POWER,
.resource = MWAIT_RES(5, 0),
},
[C_STATE_C10] = {
- .latency = C_STATE_LATENCY_FROM_LAT_REG(0),
+ .latency = C_STATE_LATENCY_FROM_LAT_REG(5),
.power = C10_POWER,
.resource = MWAIT_RES(6, 0),
},

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Gerrit-Project: coreboot
Gerrit-Branch: main
Gerrit-Change-Id: Ie01a53d6f06bc02a53d95e390e16e9963f4c65ee
Gerrit-Change-Number: 80167
Gerrit-PatchSet: 3
Gerrit-Owner: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Gerrit-Reviewer: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Gerrit-Reviewer: Matt DeVillier <matt.devillier@gmail.com>
Gerrit-Reviewer: Nico Huber <nico.h@gmx.de>
Gerrit-Reviewer: build bot (Jenkins) <no-reply@coreboot.org>
Gerrit-MessageType: merged