| Message ID | 1414915813-2462-2-git-send-email-daniel@numascale.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c index 81d70ba..bd083c0 100644 --- a/arch/x86/kernel/apic/apic_numachip.c +++ b/arch/x86/kernel/apic/apic_numachip.c @@ -145,7 +145,7 @@ static void numachip_send_IPI_all(int vector) static void numachip_send_IPI_self(int vector) { - __default_send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL); + apic_write(APIC_SELF_IPI, vector); } static int __init numachip_probe(void)
The default self-IPI path polls the ICR to delay sending the IPI until there is no IPI in progress. This is redundant on x86-86 APICs, since IPIs are queued. See the AMD64 Architecture Programmer's Manual, vol 2, p525. Signed-off-by: Daniel J Blueman <daniel@numascale.com> --- arch/x86/kernel/apic/apic_numachip.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)