diff options
Diffstat (limited to 'arch/x86/kernel/amd_nb.c')
| -rw-r--r-- | arch/x86/kernel/amd_nb.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c index 63c8b4f2c1ad..affacb5e0065 100644 --- a/arch/x86/kernel/amd_nb.c +++ b/arch/x86/kernel/amd_nb.c @@ -68,6 +68,16 @@ int amd_cache_northbridges(void) boot_cpu_data.x86 == 0x15) amd_northbridges.flags |= AMD_NB_GART; + /* + * Some CPU families support L3 Cache Index Disable. There are some + * limitations because of E382 and E388 on family 0x10. + */ + if (boot_cpu_data.x86 == 0x10 && + boot_cpu_data.x86_model >= 0x8 && + (boot_cpu_data.x86_model > 0x9 || + boot_cpu_data.x86_mask >= 0x1)) + amd_northbridges.flags |= AMD_NB_L3_INDEX_DISABLE; + return 0; } EXPORT_SYMBOL_GPL(amd_cache_northbridges); |