diff options
| author | Timothy Pearson <tpearson@raptorengineeringinc.com> | 2015-11-24 14:11:53 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-01-29 00:42:21 +0100 |
| commit | 71f864191ff6f9c8afe9acf0706b6fe07c5cf68d (patch) | |
| tree | 05f15968e2bc0af722b7367add2a1a4eb2a64eee /src/cpu | |
| parent | 9253ce60c4bce74854938c22008829da48ae97a9 (diff) | |
cpu/amd/fam10h-fam15h: Correctly create APIC ID on single node systems
The existing code generated an incorrect boot APIC ID from node and
core number for single node packages, leading to a boot failure when
the second node was installed.
Properly generate the boot APIC ID from node and core number.
Change-Id: I7a00e216a6841c527b0a016fa07befb42162414a
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/13149
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/amd/family_10h-family_15h/init_cpus.c | 6 |
1 files changed, 5 insertions, 1 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 1794072a64..5a676015ee 100644 --- a/src/cpu/amd/family_10h-family_15h/init_cpus.c +++ b/src/cpu/amd/family_10h-family_15h/init_cpus.c @@ -127,13 +127,17 @@ uint32_t get_boot_apic_id(uint8_t node, uint32_t core) { } } else { if (fam15h) { - ap_apicid = (node * (siblings + 1)) + core; + ap_apicid = 0; + ap_apicid |= (node & 0x7) << 4; /* Node ID */ + ap_apicid |= core & 0xf; /* Core ID */ } else { ap_apicid = node * (nb_cfg_54 ? (siblings + 1) : 1) + core * (nb_cfg_54 ? 1 : 64); } } + printk(BIOS_DEBUG, "%s: using %d as APIC ID for node %d, core %d\n", __func__, ap_apicid, node, core); + return ap_apicid; } |