Commit-ID: f2bffe8a3eef42a1cd3393d56acd9fe598d2119c Gitweb: http://git.kernel.org/tip/f2bffe8a3eef42a1cd3393d56acd9fe598d2119c Author: Thomas Gleixner <t...@linutronix.de> AuthorDate: Wed, 4 Nov 2015 22:57:04 +0000 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Thu, 5 Nov 2015 13:07:53 +0100
x86/apic: Implement single IPI for x2apic_phys Signed-off-by: Thomas Gleixner <t...@linutronix.de> Reviewed-by: Ingo Molnar <mi...@kernel.org> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Borislav Petkov <b...@alien.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/20151104220849.296438...@linutronix.de --- arch/x86/kernel/apic/x2apic_phys.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c index 662e915..a1242e2 100644 --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c @@ -36,6 +36,14 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) return x2apic_enabled() && (x2apic_phys || x2apic_fadt_phys()); } +static void x2apic_send_IPI(int cpu, int vector) +{ + u32 dest = per_cpu(x86_cpu_to_apicid, cpu); + + x2apic_wrmsr_fence(); + __x2apic_send_IPI_dest(dest, vector, APIC_DEST_PHYSICAL); +} + static void __x2apic_send_IPI_mask(const struct cpumask *mask, int vector, int apic_dest) { @@ -122,6 +130,7 @@ static struct apic apic_x2apic_phys = { .cpu_mask_to_apicid_and = default_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/
