diff options
Diffstat (limited to 'arch/x86/kernel/smpboot.c')
| -rw-r--r-- | arch/x86/kernel/smpboot.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index d720b7e0cf3..a25eeec0008 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -47,6 +47,7 @@ #include <linux/bootmem.h> #include <linux/err.h> #include <linux/nmi.h> +#include <linux/tboot.h> #include <asm/acpi.h> #include <asm/desc.h> @@ -434,7 +435,8 @@ const struct cpumask *cpu_coregroup_mask(int cpu) * For perf, we return last level cache shared map. * And for power savings, we return cpu_core_map */ - if (sched_mc_power_savings || sched_smt_power_savings) + if ((sched_mc_power_savings || sched_smt_power_savings) && + !(cpu_has(c, X86_FEATURE_AMD_DCM))) return cpu_core_mask(cpu); else return c->llc_shared_map; @@ -1331,6 +1333,7 @@ void play_dead_common(void) void native_play_dead(void) { play_dead_common(); + tboot_shutdown(TB_SHUTDOWN_WFS); wbinvd_halt(); } |