summaryrefslogtreecommitdiff
path: root/arch/x86/kernel/apic/msi.c
diff options
context:
space:
mode:
authorJiang Liu <jiang.liu@linux.intel.com>2015-04-13 06:11:26 (GMT)
committerThomas Gleixner <tglx@linutronix.de>2015-04-24 13:36:48 (GMT)
commit4c8f9960ee497020d0858362c81ece984bc89aa5 (patch)
treecc8db97cff2e53e594f22923d87e8d1e28713c09 /arch/x86/kernel/apic/msi.c
parentbd8eb63f8a3907bb477992145cb6ce0064a1e43f (diff)
downloadlinux-4c8f9960ee497020d0858362c81ece984bc89aa5.tar.xz
x86/MSI: Use new irqdomain interfaces to allocate/free IRQ
Use new irqdomain interfaces to allocate/free IRQ for PCI MSI, so we can remove GENERIC_IRQ_LEGACY_ALLOC_HWIRQ later. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: David Cohen <david.a.cohen@linux.intel.com> Cc: Sander Eikelenboom <linux@eikelenboom.it> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Dimitri Sivanich <sivanich@sgi.com> Link: http://lkml.kernel.org/r/1416894816-23245-5-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/apic/msi.c')
-rw-r--r--arch/x86/kernel/apic/msi.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index d6ba2d6..76cc2c9 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -14,6 +14,7 @@
#include <linux/dmar.h>
#include <linux/hpet.h>
#include <linux/msi.h>
+#include <linux/irqdomain.h>
#include <asm/msidef.h>
#include <asm/hpet.h>
#include <asm/hw_irq.h>
@@ -146,23 +147,20 @@ int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc,
int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
{
struct msi_desc *msidesc;
- unsigned int irq;
- int node, ret;
+ int irq, ret;
/* Multiple MSI vectors only supported with interrupt remapping */
if (type == PCI_CAP_ID_MSI && nvec > 1)
return 1;
- node = dev_to_node(&dev->dev);
-
list_for_each_entry(msidesc, &dev->msi_list, list) {
- irq = irq_alloc_hwirq(node);
- if (!irq)
+ irq = irq_domain_alloc_irqs(NULL, 1, NUMA_NO_NODE, NULL);
+ if (irq <= 0)
return -ENOSPC;
ret = setup_msi_irq(dev, msidesc, irq, 0);
if (ret < 0) {
- irq_free_hwirq(irq);
+ irq_domain_free_irqs(irq, 1);
return ret;
}
@@ -172,7 +170,7 @@ int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
void native_teardown_msi_irq(unsigned int irq)
{
- irq_free_hwirq(irq);
+ irq_domain_free_irqs(irq, 1);
}
#ifdef CONFIG_DMAR_TABLE