AcoSail/kernel_optimize_test
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x86/msi: Consolidate HPET allocation

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None of the magic HPET fields are required in any way.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20200826112331.943993771@linutronix.de
This commit is contained in:
Thomas Gleixner 2020-08-26 13:16:41 +02:00
parent 874d9b3a95
commit 2bf1e7bced
4 changed files with 10 additions and 17 deletions
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7
arch/x86/include/asm/hw_irq.h
View File

@ -65,13 +65,6 @@ struct irq_alloc_info {
union {
int unused;
#ifdef CONFIG_HPET_TIMER
struct {
int hpet_id;
int hpet_index;
void *hpet_data;
};
#endif
#ifdef CONFIG_PCI_MSI
struct {
struct pci_dev *msi_dev;

14
arch/x86/kernel/apic/msi.c
View File

@ -423,7 +423,7 @@ static struct irq_chip hpet_msi_controller __ro_after_init = {
static irq_hw_number_t hpet_msi_get_hwirq(struct msi_domain_info *info,
msi_alloc_info_t *arg)
{
return arg->hpet_index;
return arg->hwirq;
}
static int hpet_msi_init(struct irq_domain *domain,
@ -431,8 +431,8 @@ static int hpet_msi_init(struct irq_domain *domain,
irq_hw_number_t hwirq, msi_alloc_info_t *arg)
{
irq_set_status_flags(virq, IRQ_MOVE_PCNTXT);
irq_domain_set_info(domain, virq, arg->hpet_index, info->chip, NULL,
handle_edge_irq, arg->hpet_data, "edge");
irq_domain_set_info(domain, virq, arg->hwirq, info->chip, NULL,
handle_edge_irq, arg->data, "edge");
return 0;
}
@ -473,7 +473,7 @@ struct irq_domain *hpet_create_irq_domain(int hpet_id)
init_irq_alloc_info(&info, NULL);
info.type = X86_IRQ_ALLOC_TYPE_HPET_GET_PARENT;
info.hpet_id = hpet_id;
info.devid = hpet_id;
parent = irq_remapping_get_irq_domain(&info);
if (parent == NULL)
parent = x86_vector_domain;
@ -502,9 +502,9 @@ int hpet_assign_irq(struct irq_domain *domain, struct hpet_channel *hc,
init_irq_alloc_info(&info, NULL);
info.type = X86_IRQ_ALLOC_TYPE_HPET;
info.hpet_data = hc;
info.hpet_id = hpet_dev_id(domain);
info.hpet_index = dev_num;
info.data = hc;
info.devid = hpet_dev_id(domain);
info.hwirq = dev_num;
return irq_domain_alloc_irqs(domain, 1, NUMA_NO_NODE, &info);
}

2
drivers/iommu/amd/iommu.c
View File

@ -3525,7 +3525,7 @@ static int get_devid(struct irq_alloc_info *info)
return get_ioapic_devid(info->ioapic_id);
case X86_IRQ_ALLOC_TYPE_HPET:
case X86_IRQ_ALLOC_TYPE_HPET_GET_PARENT:
return get_hpet_devid(info->hpet_id);
return get_hpet_devid(info->devid);
case X86_IRQ_ALLOC_TYPE_PCI_MSI:
case X86_IRQ_ALLOC_TYPE_PCI_MSIX:
return get_device_id(&info->msi_dev->dev);

4
drivers/iommu/intel/irq_remapping.c
View File

@ -1121,7 +1121,7 @@ static struct irq_domain *intel_get_irq_domain(struct irq_alloc_info *info)
case X86_IRQ_ALLOC_TYPE_IOAPIC_GET_PARENT:
return map_ioapic_to_ir(info->ioapic_id);
case X86_IRQ_ALLOC_TYPE_HPET_GET_PARENT:
return map_hpet_to_ir(info->hpet_id);
return map_hpet_to_ir(info->devid);
case X86_IRQ_ALLOC_TYPE_PCI_MSI:
case X86_IRQ_ALLOC_TYPE_PCI_MSIX:
return map_dev_to_ir(info->msi_dev);
@ -1291,7 +1291,7 @@ static void intel_irq_remapping_prepare_irte(struct intel_ir_data *data,
case X86_IRQ_ALLOC_TYPE_PCI_MSI:
case X86_IRQ_ALLOC_TYPE_PCI_MSIX:
if (info->type == X86_IRQ_ALLOC_TYPE_HPET)
set_hpet_sid(irte, info->hpet_id);
set_hpet_sid(irte, info->devid);
else
set_msi_sid(irte, info->msi_dev);