diff options
Diffstat (limited to 'src/cpu/amd/family_10h-family_15h/init_cpus.c')
| -rw-r--r-- | src/cpu/amd/family_10h-family_15h/init_cpus.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/src/cpu/amd/family_10h-family_15h/init_cpus.c b/src/cpu/amd/family_10h-family_15h/init_cpus.c index 14d8642083..530ffd2c6f 100644 --- a/src/cpu/amd/family_10h-family_15h/init_cpus.c +++ b/src/cpu/amd/family_10h-family_15h/init_cpus.c @@ -347,9 +347,11 @@ static void STOP_CAR_AND_CPU(uint8_t skip_sharedc_config, uint32_t apicid) static u32 init_cpus(u32 cpu_init_detectedx, struct sys_info *sysinfo) { - u32 bsp_apicid = 0; - u32 apicid; + uint32_t bsp_apicid = 0; + uint32_t apicid; + uint32_t dword; uint8_t set_mtrrs; + uint8_t node_count; struct node_core_id id; /* Please refer to the calculations and explaination in cache_as_ram.inc before modifying these values */ @@ -441,6 +443,18 @@ static u32 init_cpus(u32 cpu_init_detectedx, struct sys_info *sysinfo) cpuSetAMDMSR(id.nodeid); + /* Set up HyperTransport probe filter support */ + if (is_gt_rev_d()) { + dword = pci_read_config32(NODE_PCI(id.nodeid, 0), 0x60); + node_count = ((dword >> 4) & 0x7) + 1; + + if (node_count > 1) { + msr_t msr = rdmsr(BU_CFG2_MSR); + msr.hi |= 1 << (42 - 32); + wrmsr(BU_CFG2_MSR, msr); + } + } + #if CONFIG_SET_FIDVID #if CONFIG_LOGICAL_CPUS && CONFIG_SET_FIDVID_CORE0_ONLY // Run on all AP for proper FID/VID setup. |