Commit-ID: 7b6ce46cb3d096831dea3accacee4717c66abac8 Gitweb: http://git.kernel.org/tip/7b6ce46cb3d096831dea3accacee4717c66abac8 Author: Linus Torvalds <torva...@linux-foundation.org> AuthorDate: Wed, 4 Nov 2015 22:57:00 +0000 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Thu, 5 Nov 2015 13:07:52 +0100
x86/apic: Implement single target IPI function for x2apic_cluster [ tglx: Split it out from the patch which provides the new callback ] Signed-off-by: Linus Torvalds <torva...@linux-foundation.org> Reviewed-by: Ingo Molnar <mi...@kernel.org> Cc: Borislav Petkov <b...@alien8.de> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Mike Travis <tra...@sgi.com> Cc: Daniel J Blueman <dan...@numascale.com> Link: http://lkml.kernel.org/r/20151104220848.817975...@linutronix.de Signed-off-by: Thomas Gleixner <t...@linutronix.de> --- arch/x86/kernel/apic/x2apic_cluster.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c index cc8311c..aca8b75 100644 --- a/arch/x86/kernel/apic/x2apic_cluster.c +++ b/arch/x86/kernel/apic/x2apic_cluster.c @@ -23,6 +23,14 @@ static inline u32 x2apic_cluster(int cpu) return per_cpu(x86_cpu_to_logical_apicid, cpu) >> 16; } +static void x2apic_send_IPI(int cpu, int vector) +{ + u32 dest = per_cpu(x86_cpu_to_logical_apicid, cpu); + + x2apic_wrmsr_fence(); + __x2apic_send_IPI_dest(dest, vector, APIC_DEST_LOGICAL); +} + static void __x2apic_send_IPI_mask(const struct cpumask *mask, int vector, int apic_dest) { @@ -266,6 +274,7 @@ static struct apic apic_x2apic_cluster = { .cpu_mask_to_apicid_and = x2apic_cpu_mask_to_apicid_and, + .send_IPI = x2apic_send_IPI, .send_IPI_mask = x2apic_send_IPI_mask, .send_IPI_mask_allbutself = x2apic_send_IPI_mask_allbutself, .send_IPI_allbutself = x2apic_send_IPI_allbutself, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
