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 | 45 |
1 files changed, 42 insertions, 3 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 530ffd2c6f..5d22c00832 100644 --- a/src/cpu/amd/family_10h-family_15h/init_cpus.c +++ b/src/cpu/amd/family_10h-family_15h/init_cpus.c @@ -844,8 +844,9 @@ static BOOL AMD_CpuFindCapability(u8 node, u8 cap_count, u8 * offset) */ static u32 AMD_checkLinkType(u8 node, u8 link, u8 regoff) { - u32 val; - u32 linktype = 0; + uint32_t val; + uint32_t val2; + uint32_t linktype = 0; /* Check connect, init and coherency */ val = pci_read_config32(NODE_PCI(node, 0), regoff + 0x18); @@ -860,8 +861,13 @@ static u32 AMD_checkLinkType(u8 node, u8 link, u8 regoff) if (linktype) { /* Check gen3 */ val = pci_read_config32(NODE_PCI(node, 0), regoff + 0x08); + val = (val >> 8) & 0xf; + if (is_gt_rev_d()) { + val2 = pci_read_config32(NODE_PCI(node, 0), regoff + 0x1c); + val |= (val2 & 0x1) << 4; + } - if (((val >> 8) & 0x0F) > 6) + if (val > 6) linktype |= HTPHY_LINKTYPE_HT3; else linktype |= HTPHY_LINKTYPE_HT1; @@ -1148,6 +1154,39 @@ static void cpuSetAMDPCI(u8 node) pci_write_config32(NODE_PCI(node, 3), 0xd4, dword); } + if (revision & AMD_FAM15_ALL) { + uint32_t f5x80; + uint8_t cu_enabled; + uint8_t compute_unit_count = 0; + uint8_t compute_unit_buffer_count; + + /* Determine the number of active compute units on this node */ + f5x80 = pci_read_config32(NODE_PCI(node, 5), 0x80); + cu_enabled = f5x80 & 0xf; + if (cu_enabled == 0x1) + compute_unit_count = 1; + if (cu_enabled == 0x3) + compute_unit_count = 2; + if (cu_enabled == 0x7) + compute_unit_count = 3; + if (cu_enabled == 0xf) + compute_unit_count = 4; + + if (compute_unit_count == 1) + compute_unit_buffer_count = 0x1c; + else if (compute_unit_count == 2) + compute_unit_buffer_count = 0x18; + else if (compute_unit_count == 3) + compute_unit_buffer_count = 0x14; + else + compute_unit_buffer_count = 0x10; + + dword = pci_read_config32(NODE_PCI(node, 3), 0x1a0); + dword &= ~(0x1f << 4); /* L3FreeListCBC = compute_unit_buffer_count */ + dword |= (compute_unit_buffer_count << 4); + pci_write_config32(NODE_PCI(node, 3), 0x1a0, dword); + } + printk(BIOS_DEBUG, " done\n"); } |