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authorSumeet Pawnikar <sumeet.r.pawnikar@intel.com>2021-09-30 09:38:49 +0530
committerFelix Held <felix-coreboot@felixheld.de>2021-10-01 18:42:46 +0000
commite06e43a83fe91639c5d7c54641bb67fb9950b47e (patch)
treedcb4be9a30a42edadbd89c9e08a866f8c0ca0be0 /src
parente2e0a6b5974b945e9c921292559647cc3fe0151d (diff)
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mb/intel/adlrvp: set power limits dynamically for thermal
Set power limit values dynamically based on CPU TDP and PCI ID of SKU. These values are as per platform design specification. BUG=None BRANCH=None TEST=Build FW and test on adlrvp board Change-Id: I8ba901fe7c978aad43b85a860c71b33bfbff2ff5 Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/57462 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/intel/adlrvp/include/baseboard/variants.h1
-rw-r--r--src/mainboard/intel/adlrvp/ramstage.c16
2 files changed, 11 insertions, 6 deletions
diff --git a/src/mainboard/intel/adlrvp/include/baseboard/variants.h b/src/mainboard/intel/adlrvp/include/baseboard/variants.h
index bc2a57e98f17..bd67192452f5 100644
--- a/src/mainboard/intel/adlrvp/include/baseboard/variants.h
+++ b/src/mainboard/intel/adlrvp/include/baseboard/variants.h
@@ -40,6 +40,7 @@ const struct mb_cfg *variant_memory_params(void);
void variant_devtree_update(void);
struct cpu_power_limits {
uint16_t mchid;
+ u8 cpu_tdp;
unsigned int pl1_min_power;
unsigned int pl1_max_power;
unsigned int pl2_min_power;
diff --git a/src/mainboard/intel/adlrvp/ramstage.c b/src/mainboard/intel/adlrvp/ramstage.c
index 99ce52eb26af..76cf53a63c44 100644
--- a/src/mainboard/intel/adlrvp/ramstage.c
+++ b/src/mainboard/intel/adlrvp/ramstage.c
@@ -10,14 +10,16 @@
#include <soc/soc_chip.h>
#include <drivers/intel/dptf/chip.h>
#include "board_id.h"
+#include <intelblocks/power_limit.h>
const struct cpu_power_limits limits[] = {
- /* SKU_ID, pl1_min, pl1_max, pl2_min, pl2_max */
+ /* SKU_ID, TDP (Watts), pl1_min, pl1_max, pl2_min, pl2_max */
/* PL2 values are for performance configuration */
- { PCI_DEVICE_ID_INTEL_ADL_P_ID_7, 3000, 15000, 55000, 55000 },
- { PCI_DEVICE_ID_INTEL_ADL_P_ID_6, 3000, 15000, 55000, 55000 },
- { PCI_DEVICE_ID_INTEL_ADL_P_ID_5, 4000, 28000, 64000, 64000 },
- { PCI_DEVICE_ID_INTEL_ADL_P_ID_3, 5000, 45000, 115000, 115000 },
+ { PCI_DEVICE_ID_INTEL_ADL_P_ID_7, 15, 3000, 15000, 55000, 55000 },
+ { PCI_DEVICE_ID_INTEL_ADL_P_ID_6, 15, 3000, 15000, 55000, 55000 },
+ { PCI_DEVICE_ID_INTEL_ADL_P_ID_5, 28, 4000, 28000, 64000, 64000 },
+ { PCI_DEVICE_ID_INTEL_ADL_P_ID_3, 28, 4000, 28000, 64000, 64000 },
+ { PCI_DEVICE_ID_INTEL_ADL_P_ID_3, 45, 5000, 45000, 115000, 115000 },
};
WEAK_DEV_PTR(dptf_policy);
@@ -31,8 +33,10 @@ void variant_update_power_limits(void)
uint16_t mchid = pci_s_read_config16(PCI_DEV(0, 0, 0), PCI_DEVICE_ID);
+ u8 tdp = get_cpu_tdp();
+
for (size_t i = 0; i < ARRAY_SIZE(limits); i++) {
- if (mchid == limits[i].mchid) {
+ if (mchid == limits[i].mchid && tdp == limits[i].cpu_tdp) {
struct dptf_power_limits *settings = &config->controls.power_limits;
settings->pl1.min_power = limits[i].pl1_min_power;
settings->pl1.max_power = limits[i].pl1_max_power;