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-rw-r--r--arch/i386/kernel/io_apic.c17
-rw-r--r--arch/ia64/kernel/msi_ia64.c19
-rw-r--r--arch/ia64/sn/kernel/msi_sn.c20
-rw-r--r--arch/x86_64/kernel/io_apic.c17
4 files changed, 50 insertions, 23 deletions
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 6a3875f81a0a..5592fa6e1fa1 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -2606,25 +2606,32 @@ static struct irq_chip msi_chip = {
.retrigger = ioapic_retrigger_irq,
};
-int arch_setup_msi_irq(unsigned int irq, struct pci_dev *dev)
+int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
{
struct msi_msg msg;
- int ret;
+ int irq, ret;
+ irq = create_irq();
+ if (irq < 0)
+ return irq;
+
+ set_irq_msi(irq, desc);
ret = msi_compose_msg(dev, irq, &msg);
- if (ret < 0)
+ if (ret < 0) {
+ destroy_irq(irq);
return ret;
+ }
write_msi_msg(irq, &msg);
set_irq_chip_and_handler_name(irq, &msi_chip, handle_edge_irq,
"edge");
- return 0;
+ return irq;
}
void arch_teardown_msi_irq(unsigned int irq)
{
- return;
+ destroy_irq(irq);
}
#endif /* CONFIG_PCI_MSI */
diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c
index 822e59a1b822..0d05450c91c4 100644
--- a/arch/ia64/kernel/msi_ia64.c
+++ b/arch/ia64/kernel/msi_ia64.c
@@ -64,12 +64,17 @@ static void ia64_set_msi_irq_affinity(unsigned int irq, cpumask_t cpu_mask)
}
#endif /* CONFIG_SMP */
-int ia64_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
+int ia64_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
{
struct msi_msg msg;
unsigned long dest_phys_id;
- unsigned int vector;
+ unsigned int irq, vector;
+ irq = create_irq();
+ if (irq < 0)
+ return irq;
+
+ set_irq_msi(irq, desc);
dest_phys_id = cpu_physical_id(first_cpu(cpu_online_map));
vector = irq;
@@ -89,12 +94,12 @@ int ia64_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
write_msi_msg(irq, &msg);
set_irq_chip_and_handler(irq, &ia64_msi_chip, handle_edge_irq);
- return 0;
+ return irq;
}
void ia64_teardown_msi_irq(unsigned int irq)
{
- return; /* no-op */
+ destroy_irq(irq);
}
static void ia64_ack_msi_irq(unsigned int irq)
@@ -126,12 +131,12 @@ static struct irq_chip ia64_msi_chip = {
};
-int arch_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
+int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
{
if (platform_setup_msi_irq)
- return platform_setup_msi_irq(irq, pdev);
+ return platform_setup_msi_irq(pdev, desc);
- return ia64_setup_msi_irq(irq, pdev);
+ return ia64_setup_msi_irq(pdev, desc);
}
void arch_teardown_msi_irq(unsigned int irq)
diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c
index 31fbb859b67e..ea3dc38d73fd 100644
--- a/arch/ia64/sn/kernel/msi_sn.c
+++ b/arch/ia64/sn/kernel/msi_sn.c
@@ -59,13 +59,12 @@ void sn_teardown_msi_irq(unsigned int irq)
sn_intr_free(nasid, widget, sn_irq_info);
sn_msi_info[irq].sn_irq_info = NULL;
- return;
+ destroy_irq(irq);
}
-int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
+int sn_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *entry)
{
struct msi_msg msg;
- struct msi_desc *entry;
int widget;
int status;
nasid_t nasid;
@@ -73,8 +72,8 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
struct sn_irq_info *sn_irq_info;
struct pcibus_bussoft *bussoft = SN_PCIDEV_BUSSOFT(pdev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
+ int irq;
- entry = get_irq_msi(irq);
if (!entry->msi_attrib.is_64)
return -EINVAL;
@@ -84,6 +83,11 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
if (provider == NULL || provider->dma_map_consistent == NULL)
return -EINVAL;
+ irq = create_irq();
+ if (irq < 0)
+ return irq;
+
+ set_irq_msi(irq, entry);
/*
* Set up the vector plumbing. Let the prom (via sn_intr_alloc)
* decide which cpu to direct this msi at by default.
@@ -95,12 +99,15 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
SWIN_WIDGETNUM(bussoft->bs_base);
sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
- if (! sn_irq_info)
+ if (! sn_irq_info) {
+ destroy_irq(irq);
return -ENOMEM;
+ }
status = sn_intr_alloc(nasid, widget, sn_irq_info, irq, -1, -1);
if (status) {
kfree(sn_irq_info);
+ destroy_irq(irq);
return -ENOMEM;
}
@@ -121,6 +128,7 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
if (! bus_addr) {
sn_intr_free(nasid, widget, sn_irq_info);
kfree(sn_irq_info);
+ destroy_irq(irq);
return -ENOMEM;
}
@@ -139,7 +147,7 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev)
write_msi_msg(irq, &msg);
set_irq_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq);
- return 0;
+ return irq;
}
#ifdef CONFIG_SMP
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index d7bad90a5ad8..6be6730acb5c 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -1956,24 +1956,31 @@ static struct irq_chip msi_chip = {
.retrigger = ioapic_retrigger_irq,
};
-int arch_setup_msi_irq(unsigned int irq, struct pci_dev *dev)
+int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
{
struct msi_msg msg;
- int ret;
+ int irq, ret;
+ irq = create_irq();
+ if (irq < 0)
+ return irq;
+
+ set_irq_msi(irq, desc);
ret = msi_compose_msg(dev, irq, &msg);
- if (ret < 0)
+ if (ret < 0) {
+ destroy_irq(irq);
return ret;
+ }
write_msi_msg(irq, &msg);
set_irq_chip_and_handler_name(irq, &msi_chip, handle_edge_irq, "edge");
- return 0;
+ return irq;
}
void arch_teardown_msi_irq(unsigned int irq)
{
- return;
+ destroy_irq(irq);
}
#endif /* CONFIG_PCI_MSI */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 19:52:17 +0000