arch/mips/txx9/generic/irq_tx4927.c

Source file repositories/reference/linux-study-clean/arch/mips/txx9/generic/irq_tx4927.c

File Facts

System
Linux kernel
Corpus path
arch/mips/txx9/generic/irq_tx4927.c
Extension
.c
Size
1919 bytes
Lines
50
Domain
Architecture Layer
Bucket
arch/mips
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/irq_cpu.h>
#include <asm/txx9/tx4927.h>

void __init tx4927_irq_init(void)
{
	int i;

	mips_cpu_irq_init();
	txx9_irq_init(TX4927_IRC_REG & 0xfffffffffULL);
	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + TX4927_IRC_INT,
				handle_simple_irq);
	/* raise priority for errors, timers, SIO */
	txx9_irq_set_pri(TX4927_IR_ECCERR, 7);
	txx9_irq_set_pri(TX4927_IR_WTOERR, 7);
	txx9_irq_set_pri(TX4927_IR_PCIERR, 7);
	txx9_irq_set_pri(TX4927_IR_PCIPME, 7);
	for (i = 0; i < TX4927_NUM_IR_TMR; i++)
		txx9_irq_set_pri(TX4927_IR_TMR(i), 6);
	for (i = 0; i < TX4927_NUM_IR_SIO; i++)
		txx9_irq_set_pri(TX4927_IR_SIO(i), 5);
}

Annotation

Implementation Notes