Dhyana use no delay in smp_quirk_init_udelay(), and return in mwait_play_dead() as AMD does.
Signed-off-by: Pu Wen <[email protected]> --- arch/x86/kernel/smpboot.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index db9656e..26cb2c9 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -658,6 +658,7 @@ static void __init smp_quirk_init_udelay(void) /* if modern processor, use no delay */ if (((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) && (boot_cpu_data.x86 == 6)) || + ((boot_cpu_data.x86_vendor == X86_VENDOR_HYGON) && (boot_cpu_data.x86 >= 0x18)) || ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && (boot_cpu_data.x86 >= 0xF))) { init_udelay = 0; return; @@ -1574,7 +1575,8 @@ static inline void mwait_play_dead(void) void *mwait_ptr; int i; - if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) + if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD || + boot_cpu_data.x86_vendor == X86_VENDOR_HYGON) return; if (!this_cpu_has(X86_FEATURE_MWAIT)) return; -- 2.7.4 _______________________________________________ Xen-devel mailing list [email protected] https://lists.xenproject.org/mailman/listinfo/xen-devel
