Commit-ID:  232d47f45baeb4a6784503b9bffd7c8e78b400b1
Gitweb:     http://git.kernel.org/tip/232d47f45baeb4a6784503b9bffd7c8e78b400b1
Author:     Jiang Liu <jiang....@linux.intel.com>
AuthorDate: Tue, 25 Nov 2014 13:53:35 +0800
Committer:  Thomas Gleixner <t...@linutronix.de>
CommitDate: Wed, 26 Nov 2014 18:59:26 +0100

x86, irq: Implement irq_chip.irq_write_msi_msg for MSI/DMAR/HPET irq_chips

Implement irq_chip.irq_write_msi_msg for MSI/DMAR/HPET irq_chips, they
will be used to share common code later.

Signed-off-by: Jiang Liu <jiang....@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
Cc: Tony Luck <tony.l...@intel.com>
Cc: Joerg Roedel <j...@8bytes.org>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: Bjorn Helgaas <bhelg...@google.com>
Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Cc: Rafael J. Wysocki <r...@rjwysocki.net>
Cc: Randy Dunlap <rdun...@infradead.org>
Cc: Yinghai Lu <ying...@kernel.org>
Cc: Borislav Petkov <b...@alien8.de>
Link: 
http://lkml.kernel.org/r/1416894816-23245-27-git-send-email-jiang....@linux.intel.com
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
---
 arch/x86/kernel/apic/msi.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index 15429aa..f5b8995 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -192,6 +192,11 @@ dmar_msi_set_affinity(struct irq_data *data, const struct 
cpumask *mask,
        return ret;
 }
 
+static void dmar_msi_write_msg(struct irq_data *data, struct msi_msg *msg)
+{
+       dmar_msi_write(data->irq, msg);
+}
+
 static struct irq_chip dmar_msi_controller = {
        .name                   = "DMAR-MSI",
        .irq_unmask             = dmar_msi_unmask,
@@ -200,6 +205,7 @@ static struct irq_chip dmar_msi_controller = {
        .irq_set_affinity       = dmar_msi_set_affinity,
        .irq_retrigger          = irq_chip_retrigger_hierarchy,
        .irq_compose_msi_msg    = irq_msi_compose_msg,
+       .irq_write_msi_msg      = dmar_msi_write_msg,
        .flags                  = IRQCHIP_SKIP_SET_WAKE,
 };
 
@@ -322,6 +328,11 @@ static int hpet_msi_set_affinity(struct irq_data *data,
        return ret;
 }
 
+static void hpet_msi_write_msg(struct irq_data *data, struct msi_msg *msg)
+{
+       hpet_msi_write(data->handler_data, msg);
+}
+
 static struct irq_chip hpet_msi_controller = {
        .name = "HPET-MSI",
        .irq_unmask = hpet_msi_unmask,
@@ -330,6 +341,7 @@ static struct irq_chip hpet_msi_controller = {
        .irq_set_affinity = hpet_msi_set_affinity,
        .irq_retrigger = irq_chip_retrigger_hierarchy,
        .irq_compose_msi_msg = irq_msi_compose_msg,
+       .irq_write_msi_msg = hpet_msi_write_msg,
        .flags = IRQCHIP_SKIP_SET_WAKE,
 };
 
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