[Patch Part2 v5 14/31] iommu/vt-d: Change prototypes to prepare for enabling hierarchy irqdomain

Jiang Liu
2014-11-06T14:20:34Z

Prepare for support hierarchy irqdomain by changing function prototypes,
should be no function changes.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
---
drivers/iommu/intel_irq_remapping.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index fd181cf8a589..5acad492701e 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -82,10 +82,10 @@ static int get_irte(int irq, struct irte *entry)
return 0;
}

-static int alloc_irte(struct intel_iommu *iommu, int irq, u16 count)
+static int alloc_irte(struct intel_iommu *iommu, int irq,
+ struct irq_2_iommu *irq_iommu, u16 count)
{
struct ir_table *table = iommu->ir_table;
- struct irq_2_iommu *irq_iommu = irq_2_iommu(irq);
struct irq_cfg *cfg = irq_cfg(irq);
unsigned int mask = 0;
unsigned long flags;
@@ -173,9 +173,9 @@ static int set_irte_irq(int irq, struct intel_iommu *iommu, u16 index, u16 subha
return 0;
}

-static int modify_irte(int irq, struct irte *irte_modified)
+static int modify_irte(struct irq_2_iommu *irq_iommu,
+ struct irte *irte_modified)
{
- struct irq_2_iommu *irq_iommu = irq_2_iommu(irq);
struct intel_iommu *iommu;
unsigned long flags;
struct irte *irte;
@@ -242,7 +242,7 @@ static int clear_entries(struct irq_2_iommu *irq_iommu)
return 0;

iommu = irq_iommu->iommu;
- index = irq_iommu->irte_index + irq_iommu->sub_handle;
+ index = irq_iommu->irte_index;

start = iommu->ir_table->base + index;
end = start + (1 << irq_iommu->irte_mask);
@@ -937,7 +937,7 @@ static int intel_setup_ioapic_entry(int irq,
pr_warn("No mapping iommu for ioapic %d\n", ioapic_id);
index = -ENODEV;
} else {
- index = alloc_irte(iommu, irq, 1);
+ index = alloc_irte(iommu, irq, irq_2_iommu(irq), 1);
if (index < 0) {
pr_warn("Failed to allocate IRTE for ioapic %d\n",
ioapic_id);
@@ -953,7 +953,7 @@ static int intel_setup_ioapic_entry(int irq,
/* Set source-id of interrupt request */
set_ioapic_sid(&irte, ioapic_id);

- modify_irte(irq, &irte);
+ modify_irte(irq_2_iommu(irq), &irte);

apic_printk(APIC_VERBOSE, KERN_DEBUG "IOAPIC[%d]: "
"Set IRTE entry (P:%d FPD:%d Dst_Mode:%d "
@@ -1040,7 +1040,7 @@ intel_ioapic_set_affinity(struct irq_data *data, const struct cpumask *mask,
* Atomically updates the IRTE with the new destination, vector
* and flushes the interrupt entry cache.
*/
- modify_irte(irq, &irte);
+ modify_irte(irq_2_iommu(irq), &irte);

/*
* After this point, all the interrupts will start arriving
@@ -1076,7 +1076,7 @@ static void intel_compose_msi_msg(struct pci_dev *pdev,
else
set_hpet_sid(&irte, hpet_id);

- modify_irte(irq, &irte);
+ modify_irte(irq_2_iommu(irq), &irte);

msg->address_hi = MSI_ADDR_BASE_HI;
msg->data = sub_handle;
@@ -1103,7 +1103,7 @@ static int intel_msi_alloc_irq(struct pci_dev *dev, int irq, int nvec)
"Unable to map PCI %s to iommu\n", pci_name(dev));
index = -ENOENT;
} else {
- index = alloc_irte(iommu, irq, nvec);
+ index = alloc_irte(iommu, irq, irq_2_iommu(irq), nvec);
if (index < 0) {
printk(KERN_ERR
"Unable to allocate %d IRTE for PCI %s\n",
@@ -1147,7 +1147,7 @@ static int intel_alloc_hpet_msi(unsigned int irq, unsigned int id)
down_read(&dmar_global_lock);
iommu = map_hpet_to_ir(id);
if (iommu) {
- index = alloc_irte(iommu, irq, 1);
+ index = alloc_irte(iommu, irq, irq_2_iommu(irq), 1);
if (index >= 0)
ret = 0;
}
--
1.7.10.4