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| author | Tianyang Zhang <zhangtianyang@loongson.cn> | 2024-08-23 12:43:36 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-08-23 20:40:27 +0200 |
| commit | a1d4646d34c6642194a421ca9afbd060b0f9aa00 (patch) | |
| tree | 0c43161aacc1759f33e08c33769f3c1203865d44 /drivers/irqchip | |
| parent | irqchip/loongson-eiointc: Rename CPUHP_AP_IRQ_LOONGARCH_STARTING (diff) | |
| download | linux-a1d4646d34c6642194a421ca9afbd060b0f9aa00.tar.xz linux-a1d4646d34c6642194a421ca9afbd060b0f9aa00.zip | |
irqchip/loongson-pch-msi: Prepare get_pch_msi_handle() for AVECINTC
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
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-loongson-pch-msi.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/irqchip/irq-loongson-pch-msi.c b/drivers/irqchip/irq-loongson-pch-msi.c index d43731878800..0dc14550791d 100644 --- a/drivers/irqchip/irq-loongson-pch-msi.c +++ b/drivers/irqchip/irq-loongson-pch-msi.c @@ -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; |