Commit-ID:  654eda5170093e5dc6fe63c044be390b933b172c
Gitweb:     http://git.kernel.org/tip/654eda5170093e5dc6fe63c044be390b933b172c
Author:     Jiang Liu <[email protected]>
AuthorDate: Tue, 25 Nov 2014 13:53:12 +0800
Committer:  Thomas Gleixner <[email protected]>
CommitDate: Wed, 26 Nov 2014 18:59:24 +0100

x86, hpet: Use new irqdomain interfaces to allocate/free IRQ

Use new irqdomain interfaces to allocate/free IRQ for HPET, so we could
kill GENERIC_IRQ_LEGACY_ALLOC_HWIRQ later.

Signed-off-by: Jiang Liu <[email protected]>
Cc: Konrad Rzeszutek Wilk <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Joerg Roedel <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Bjorn Helgaas <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: Yinghai Lu <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Srivatsa S. Bhat <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
---
 arch/x86/kernel/hpet.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 319bcb9..24db2d3 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -11,6 +11,7 @@
 #include <linux/cpu.h>
 #include <linux/pm.h>
 #include <linux/io.h>
+#include <linux/irqdomain.h>
 
 #include <asm/fixmap.h>
 #include <asm/hpet.h>
@@ -476,7 +477,7 @@ static int hpet_msi_next_event(unsigned long delta,
 static int hpet_setup_msi_irq(unsigned int irq)
 {
        if (x86_msi.setup_hpet_msi(irq, hpet_blockid)) {
-               irq_free_hwirq(irq);
+               irq_domain_free_irqs(irq, 1);
                return -EINVAL;
        }
        return 0;
@@ -484,9 +485,10 @@ static int hpet_setup_msi_irq(unsigned int irq)
 
 static int hpet_assign_irq(struct hpet_dev *dev)
 {
-       unsigned int irq = irq_alloc_hwirq(-1);
+       int irq;
 
-       if (!irq)
+       irq = irq_domain_alloc_irqs(NULL, 1, NUMA_NO_NODE, NULL);
+       if (irq <= 0)
                return -EINVAL;
 
        irq_set_handler_data(irq, dev);
--
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