diff options
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/chip.c | 8 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h | 6 |
2 files changed, 14 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/chip.c b/src/soc/intel/xeon_sp/cpx/chip.c index f4a9e8282b..3eaf46f1cf 100644 --- a/src/soc/intel/xeon_sp/cpx/chip.c +++ b/src/soc/intel/xeon_sp/cpx/chip.c @@ -167,6 +167,13 @@ static void set_imc_locks(void) pci_or_config32(dev, IMC_M2MEM_TIMEOUT, TIMEOUT_LOCK); } +static void set_upi_locks(void) +{ + struct device *dev = 0; + while ((dev = dev_find_device(PCI_VENDOR_ID_INTEL, UPI_LL_CR_DEVID, dev))) + pci_or_config32(dev, UPI_LL_CR_KTIMISCMODLCK, KTIMISCMODLCK_LOCK); +} + static void chip_final(void *data) { /* Lock SBI */ @@ -186,6 +193,7 @@ static void chip_final(void *data) mp_run_on_all_cpus(set_msr_locks, NULL); set_pcu_locks(); set_imc_locks(); + set_upi_locks(); p2sb_hide(); iio_enable_masks(); diff --git a/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h b/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h index 0f9a1c31fb..ef918c6d00 100644 --- a/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h +++ b/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h @@ -124,6 +124,12 @@ #define IMC_M2MEM_TIMEOUT 0x104 #define TIMEOUT_LOCK BIT(1) +/* UPI Devices */ +/* Bus: B(3), Device: 16,14, Function: 3 (LL_CR) */ +#define UPI_LL_CR_DEVID 0x205B +#define UPI_LL_CR_KTIMISCMODLCK 0x300 +#define KTIMISCMODLCK_LOCK BIT(0) + /* CPU Devices */ #define CBDMA_DEV_NUM 0x04 |