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irqchip/loongson-pch-msi: Prepare get_pch_msi_handle() for AVECINTC

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On Loongson-3C6000 and higher systems with AVECINTC irqchip, there may
be multiple PCI segments, but only one PCH-MSI irq domain. In this case,
let get_pch_msi_handle() return the first domain handle.

Co-developed-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Co-developed-by: Liupu Wang <wangliupu@loongson.cn>
Signed-off-by: Liupu Wang <wangliupu@loongson.cn>
Co-developed-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Tianyang Zhang <zhangtianyang@loongson.cn>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240823104337.25577-1-zhangtianyang@loongson.cn
This commit is contained in:
Tianyang Zhang
2024-08-23 18:43:36 +08:00
committed by Thomas Gleixner
parent 9e83dd3ebb
commit a1d4646d34
1 changed files with 5 additions and 5 deletions
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10
drivers/irqchip/irq-loongson-pch-msi.c
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@@ -255,17 +255,17 @@ IRQCHIP_DECLARE(pch_msi, "loongson,pch-msi-1.0", pch_msi_of_init);
#ifdef CONFIG_ACPI
struct fwnode_handle *get_pch_msi_handle(int pci_segment)
{
int i;
if (cpu_has_avecint)
return pch_msi_handle[0];
for (i = 0; i < MAX_IO_PICS; i++) {
for (int i = 0; i < MAX_IO_PICS; i++) {
if (msi_group[i].pci_segment == pci_segment)
return pch_msi_handle[i];
}
return NULL;
return pch_msi_handle[0];
}
int __init pch_msi_acpi_init(struct irq_domain *parent,
struct acpi_madt_msi_pic *acpi_pchmsi)
int __init pch_msi_acpi_init(struct irq_domain *parent, struct acpi_madt_msi_pic *acpi_pchmsi)
{
int ret;
struct fwnode_handle *domain_handle;