On Fri, Jun 15, 2012 at 04:09:53PM +0800, Huacai Chen wrote:
> IRQ routing path of Loongson-3:
> Devices(most) --> I8259 --> HT Controller --> IRQ Routing Table --> CPU
> ^
> |
> Device(legacy devices such as UART) --> Bonito ---|
>
> IRQ Routing Table route 32 INTs to CPU's INT0~INT3(IP2~IP5 of CP0), 32
> INTs include 16 HT INTs(mostly), 4 PCI INTs, 1 LPC INT, etc. IP6 is used
> for IPI and IP7 is used for internal MIPS timer. LOONGSON_INT_ROUTER_*
> are IRQ Routing Table registers.
>
> I8259 IRQs are 1:1 mapped to HT1 INTs. LOONGSON_HT1_* are configuration
> registers of HT1 controller.
>
> Signed-off-by: Huacai Chen <chenhc@xxxxxxxxxx>
> Signed-off-by: Hongliang Tao <taohl@xxxxxxxxxx>
> Signed-off-by: Hua Yan <yanh@xxxxxxxxxx>
> ---
> arch/mips/include/asm/mach-loongson/irq.h | 26 +++++++
> arch/mips/include/asm/mach-loongson/loongson.h | 9 +++
> arch/mips/loongson/Makefile | 6 ++
> arch/mips/loongson/loongson-3/Makefile | 4 +
> arch/mips/loongson/loongson-3/irq.c | 87 ++++++++++++++++++++++++
> 5 files changed, 132 insertions(+), 0 deletions(-)
> create mode 100644 arch/mips/include/asm/mach-loongson/irq.h
> create mode 100644 arch/mips/loongson/loongson-3/Makefile
> create mode 100644 arch/mips/loongson/loongson-3/irq.c
Fix the following compiling warning please:
CC drivers/input/serio/i8042.o
In file included from drivers/input/serio/i8042.h:32,
from drivers/input/serio/i8042.c:91:
drivers/input/serio/i8042-io.h:36:1: warning: "I8042_KBD_IRQ" redefined
In file included from
/home/liuqi/workspace/linux.git/arch/mips/include/asm/irq.h:18,
from include/linux/irq.h:27,
from include/asm-generic/hardirq.h:12,
from
/home/liuqi/workspace/linux.git/arch/mips/include/asm/hardirq.h:16,
from include/linux/hardirq.h:7,
from include/linux/interrupt.h:12,
from drivers/input/serio/i8042.c:18:
/home/liuqi/workspace/linux.git/arch/mips/include/asm/mach-loongson/irq.h:9:1: warning: this is the location of the previous definition
LIU Qi
