diff options
| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2020-03-25 11:54:57 +0800 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2020-03-25 10:56:43 +0100 |
| commit | a93f1d903fa34fc2c5d9fa450bdb6c28d6fdfe00 (patch) | |
| tree | a222d8d84f4df4cc23a72cf7f8f79b148a801825 /arch/mips | |
| parent | b6280c8bb6f50410a730fa2e07525e371f230230 (diff) | |
irqchip: Add driver for Loongson-3 HyperTransport PIC controller
This controller appeared on Loongson-3 family of chips to receive
interrupts from PCH PIC.
It is a I8259 with optimized interrupt polling flow. We can poll
interrupt number from HT vector directly but still have to follow
standard I8259 routines to mask, unmask and EOI.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Co-developed-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/i8259.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/include/asm/i8259.h b/arch/mips/include/asm/i8259.h index 97a5e41ed1ab..a54b9649de22 100644 --- a/arch/mips/include/asm/i8259.h +++ b/arch/mips/include/asm/i8259.h @@ -36,6 +36,7 @@ extern raw_spinlock_t i8259A_lock; extern void make_8259A_irq(unsigned int irq); extern void init_i8259_irqs(void); +extern struct irq_domain *__init_i8259_irqs(struct device_node *node); /** * i8159_set_poll() - Override the i8259 polling function |