[tip:x86/apic] x86/apic: Implement single target IPI function for x2apic_cluster

[tip-bot for Linus Torvalds]

Commit-ID:  7b6ce46cb3d096831dea3accacee4717c66abac8
Gitweb: http://git.kernel.org/tip/7b6ce46cb3d096831dea3accacee4717c66abac8
Author: Linus Torvalds 
AuthorDate: Wed, 4 Nov 2015 22:57:00 +
Committer:  Thomas Gleixner 
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 
Reviewed-by: Ingo Molnar 
Cc: Borislav Petkov 
Cc: Peter Zijlstra 
Cc: Mike Travis 
Cc: Daniel J Blueman 
Link: http://lkml.kernel.org/r/20151104220848.817975...@linutronix.de
Signed-off-by: Thomas Gleixner 
---
 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,
--
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[tip:x86/apic] x86/apic: Implement single target IPI function for x2apic_cluster

[tip-bot for Linus Torvalds]

Commit-ID:  7b6ce46cb3d096831dea3accacee4717c66abac8
Gitweb: http://git.kernel.org/tip/7b6ce46cb3d096831dea3accacee4717c66abac8
Author: Linus Torvalds 
AuthorDate: Wed, 4 Nov 2015 22:57:00 +
Committer:  Thomas Gleixner 
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 
Reviewed-by: Ingo Molnar 
Cc: Borislav Petkov 
Cc: Peter Zijlstra 
Cc: Mike Travis 
Cc: Daniel J Blueman 
Link: http://lkml.kernel.org/r/20151104220848.817975...@linutronix.de
Signed-off-by: Thomas Gleixner 
---
 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,
--
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Please read the FAQ at  http://www.tux.org/lkml/