[Patch Part2 v5 09/31] x86, MSI: Use new irqdomain interfaces to allocate/free IRQ
Use new irqdomain interfaces to allocate/free IRQ for MSI, so we could
kill GENERIC_IRQ_LEGACY_ALLOC_HWIRQ later.
Signed-off-by: Jiang Liu
---
arch/x86/kernel/apic/msi.c | 14 ++
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index 75f4f560f4c2..d5def489ca5b 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -14,6 +14,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -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);
-
list_for_each_entry(msidesc, >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
--
1.7.10.4
--
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[Patch Part2 v5 09/31] x86, MSI: Use new irqdomain interfaces to allocate/free IRQ
Use new irqdomain interfaces to allocate/free IRQ for MSI, so we could
kill GENERIC_IRQ_LEGACY_ALLOC_HWIRQ later.
Signed-off-by: Jiang Liu jiang@linux.intel.com
---
arch/x86/kernel/apic/msi.c | 14 ++
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index 75f4f560f4c2..d5def489ca5b 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
--
1.7.10.4
--
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