arch/mips/include/asm/mach-cavium-octeon/irq.h

Source file repositories/reference/linux-study-clean/arch/mips/include/asm/mach-cavium-octeon/irq.h

File Facts

System
Linux kernel
Corpus path
arch/mips/include/asm/mach-cavium-octeon/irq.h
Extension
.h
Size
1352 bytes
Lines
59
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

#ifndef __OCTEON_IRQ_H__
#define __OCTEON_IRQ_H__

#define NR_IRQS OCTEON_IRQ_LAST
#define MIPS_CPU_IRQ_BASE OCTEON_IRQ_SW0

enum octeon_irq {
/* 1 - 8 represent the 8 MIPS standard interrupt sources */
	OCTEON_IRQ_SW0 = 1,
	OCTEON_IRQ_SW1,
/* CIU0, CUI2, CIU4 are 3, 4, 5 */
	OCTEON_IRQ_5 = 6,
	OCTEON_IRQ_PERF,
	OCTEON_IRQ_TIMER,
/* sources in CIU_INTX_EN0 */
	OCTEON_IRQ_WORKQ0,
	OCTEON_IRQ_WDOG0 = OCTEON_IRQ_WORKQ0 + 64,
	OCTEON_IRQ_MBOX0 = OCTEON_IRQ_WDOG0 + 32,
	OCTEON_IRQ_MBOX1,
	OCTEON_IRQ_MBOX2,
	OCTEON_IRQ_MBOX3,
	OCTEON_IRQ_PCI_INT0,
	OCTEON_IRQ_PCI_INT1,
	OCTEON_IRQ_PCI_INT2,
	OCTEON_IRQ_PCI_INT3,
	OCTEON_IRQ_PCI_MSI0,
	OCTEON_IRQ_PCI_MSI1,
	OCTEON_IRQ_PCI_MSI2,
	OCTEON_IRQ_PCI_MSI3,

	OCTEON_IRQ_TWSI,
	OCTEON_IRQ_TWSI2,
	OCTEON_IRQ_RML,
	OCTEON_IRQ_TIMER0,
	OCTEON_IRQ_TIMER1,
	OCTEON_IRQ_TIMER2,
	OCTEON_IRQ_TIMER3,
#ifndef CONFIG_PCI_MSI
	OCTEON_IRQ_LAST = 127
#endif
};

#ifdef CONFIG_PCI_MSI
/* 256 - 511 represent the MSI interrupts 0-255 */
#define OCTEON_IRQ_MSI_BIT0	(256)

#define OCTEON_IRQ_MSI_LAST	 (OCTEON_IRQ_MSI_BIT0 + 255)
#define OCTEON_IRQ_LAST		 (OCTEON_IRQ_MSI_LAST + 1)
#endif

#endif

Annotation

Implementation Notes