diff options
Diffstat (limited to 'src/cpu/amd/family_10h-family_15h/model_10xxx_init.c')
| -rw-r--r-- | src/cpu/amd/family_10h-family_15h/model_10xxx_init.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/cpu/amd/family_10h-family_15h/model_10xxx_init.c b/src/cpu/amd/family_10h-family_15h/model_10xxx_init.c index 0a86966537..3bda14c95a 100644 --- a/src/cpu/amd/family_10h-family_15h/model_10xxx_init.c +++ b/src/cpu/amd/family_10h-family_15h/model_10xxx_init.c @@ -132,6 +132,50 @@ static void model_10xxx_init(device_t dev) printk(BIOS_DEBUG, "siblings = %02d, ", siblings); #endif + /* Set bus unit configuration */ + if (is_fam15h()) { + uint32_t f5x80; + uint8_t enabled; + uint8_t compute_unit_count = 0; + f5x80 = pci_read_config32(dev_find_slot(0, PCI_DEVFN(0x18 + id.nodeid, 5)), 0x80); + enabled = f5x80 & 0xf; + if (enabled == 0x1) + compute_unit_count = 1; + if (enabled == 0x3) + compute_unit_count = 2; + if (enabled == 0x7) + compute_unit_count = 3; + if (enabled == 0xf) + compute_unit_count = 4; + msr = rdmsr(BU_CFG2_MSR); + msr.lo &= ~(0x3 << 6); /* ThrottleNbInterface[1:0] */ + msr.lo |= (((compute_unit_count - 1) & 0x3) << 6); + wrmsr(BU_CFG2_MSR, msr); + } else { + uint32_t f0x60; + uint32_t f0x160; + uint8_t core_count = 0; + uint8_t node_count = 0; + f0x60 = pci_read_config32(dev_find_slot(0, PCI_DEVFN(0x18 + id.nodeid, 0)), 0x60); + core_count = (f0x60 >> 16) & 0x1f; + node_count = ((f0x60 >> 4) & 0x7) + 1; + if (is_gt_rev_d()) { + f0x160 = pci_read_config32(dev_find_slot(0, PCI_DEVFN(0x18 + id.nodeid, 0)), 0x160); + core_count |= ((f0x160 >> 16) & 0x7) << 5; + } + core_count++; + core_count /= node_count; + msr = rdmsr(BU_CFG2_MSR); + if (is_gt_rev_d()) { + msr.hi &= ~(0x3 << (36 - 32)); /* ThrottleNbInterface[3:2] */ + msr.hi |= ((((core_count - 1) >> 2) & 0x3) << (36 - 32)); + } + msr.lo &= ~(0x3 << 6); /* ThrottleNbInterface[1:0] */ + msr.lo |= (((core_count - 1) & 0x3) << 6); + msr.lo &= ~(0x1 << 24); /* WcPlusDis = 0 */ + wrmsr(BU_CFG2_MSR, msr); + } + /* Disable Cf8ExtCfg */ msr = rdmsr(NB_CFG_MSR); msr.hi &= ~(1 << (46 - 32)); |