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| author | Huacai Chen <chenhuacai@loongson.cn> | 2022-07-20 13:51:28 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-07-20 14:09:21 +0300 |
| commit | 023087324000ae704cf3cfd0abf1fc30c6e0e8d5 (patch) | |
| tree | a6d42f34e72107d6bec9afcbf05dafab558451f5 /arch/loongarch | |
| parent | bcdd75c596c89d7925a3438fde2578ca23a62b06 (diff) | |
| download | linux-023087324000ae704cf3cfd0abf1fc30c6e0e8d5.tar.xz | |
irqchip/loongson-pch-msi: Add ACPI init support
PCH-PIC/PCH-MSI stands for "Interrupt Controller" that described in
Section 5 of "Loongson 7A1000 Bridge User Manual". For more information
please refer Documentation/loongarch/irq-chip-model.rst.
Co-developed-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1658314292-35346-10-git-send-email-lvjianmin@loongson.cn
Diffstat (limited to 'arch/loongarch')
| -rw-r--r-- | arch/loongarch/include/asm/irq.h | 12 | ||||
| -rw-r--r-- | arch/loongarch/kernel/irq.c | 1 |
2 files changed, 10 insertions, 3 deletions
diff --git a/arch/loongarch/include/asm/irq.h b/arch/loongarch/include/asm/irq.h index 9549806858bd..e9039f2322a4 100644 --- a/arch/loongarch/include/asm/irq.h +++ b/arch/loongarch/include/asm/irq.h @@ -114,11 +114,20 @@ struct irq_domain *htvec_acpi_init(struct irq_domain *parent, struct acpi_madt_ht_pic *acpi_htvec); int pch_lpc_acpi_init(struct irq_domain *parent, struct acpi_madt_lpc_pic *acpi_pchlpc); -struct irq_domain *pch_msi_acpi_init(struct irq_domain *parent, +#if IS_ENABLED(CONFIG_LOONGSON_PCH_MSI) +int pch_msi_acpi_init(struct irq_domain *parent, struct acpi_madt_msi_pic *acpi_pchmsi); +#else +static inline int pch_msi_acpi_init(struct irq_domain *parent, + struct acpi_madt_msi_pic *acpi_pchmsi) +{ + return 0; +} +#endif int pch_pic_acpi_init(struct irq_domain *parent, struct acpi_madt_bio_pic *acpi_pchpic); int find_pch_pic(u32 gsi); +struct fwnode_handle *get_pch_msi_handle(int pci_segment); extern struct acpi_madt_lio_pic *acpi_liointc; extern struct acpi_madt_eio_pic *acpi_eiointc[MAX_IO_PICS]; @@ -131,7 +140,6 @@ extern struct acpi_madt_bio_pic *acpi_pchpic[MAX_IO_PICS]; extern struct irq_domain *cpu_domain; extern struct irq_domain *liointc_domain; extern struct fwnode_handle *pch_lpc_handle; -extern struct irq_domain *pch_msi_domain[MAX_IO_PICS]; extern struct fwnode_handle *pch_pic_handle[MAX_IO_PICS]; extern irqreturn_t loongson3_ipi_interrupt(int irq, void *dev); diff --git a/arch/loongarch/kernel/irq.c b/arch/loongarch/kernel/irq.c index 575b8de08289..066f892943fe 100644 --- a/arch/loongarch/kernel/irq.c +++ b/arch/loongarch/kernel/irq.c @@ -27,7 +27,6 @@ EXPORT_PER_CPU_SYMBOL(irq_stat); struct irq_domain *cpu_domain; struct irq_domain *liointc_domain; -struct irq_domain *pch_msi_domain[MAX_IO_PICS]; struct acpi_vector_group pch_group[MAX_IO_PICS]; struct acpi_vector_group msi_group[MAX_IO_PICS]; |