arch/arm/mach-footbridge/include/mach/irqs.h
Source file repositories/reference/linux-study-clean/arch/arm/mach-footbridge/include/mach/irqs.h
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/mach-footbridge/include/mach/irqs.h- Extension
.h- Size
- 3096 bytes
- Lines
- 98
- Domain
- Architecture Layer
- Bucket
- arch/arm
- 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.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
asm/mach-types.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#include <asm/mach-types.h>
#define NR_IRQS 36
#define NR_DC21285_IRQS 16
#define _ISA_IRQ(x) (0 + (x))
#define _ISA_INR(x) ((x) - 0)
#define _DC21285_IRQ(x) (16 + (x))
#define _DC21285_INR(x) ((x) - 16)
/*
* This is a list of all interrupts that the 21285
* can generate and we handle.
*/
#define IRQ_CONRX _DC21285_IRQ(0)
#define IRQ_CONTX _DC21285_IRQ(1)
#define IRQ_TIMER1 _DC21285_IRQ(2)
#define IRQ_TIMER2 _DC21285_IRQ(3)
#define IRQ_TIMER3 _DC21285_IRQ(4)
#define IRQ_IN0 _DC21285_IRQ(5)
#define IRQ_IN1 _DC21285_IRQ(6)
#define IRQ_IN2 _DC21285_IRQ(7)
#define IRQ_IN3 _DC21285_IRQ(8)
#define IRQ_DOORBELLHOST _DC21285_IRQ(9)
#define IRQ_DMA1 _DC21285_IRQ(10)
#define IRQ_DMA2 _DC21285_IRQ(11)
#define IRQ_PCI _DC21285_IRQ(12)
#define IRQ_SDRAMPARITY _DC21285_IRQ(13)
#define IRQ_I2OINPOST _DC21285_IRQ(14)
#define IRQ_PCI_ABORT _DC21285_IRQ(15)
#define IRQ_PCI_SERR _DC21285_IRQ(16)
#define IRQ_DISCARD_TIMER _DC21285_IRQ(17)
#define IRQ_PCI_DPERR _DC21285_IRQ(18)
#define IRQ_PCI_PERR _DC21285_IRQ(19)
#define IRQ_ISA_TIMER _ISA_IRQ(0)
#define IRQ_ISA_KEYBOARD _ISA_IRQ(1)
#define IRQ_ISA_CASCADE _ISA_IRQ(2)
#define IRQ_ISA_UART2 _ISA_IRQ(3)
#define IRQ_ISA_UART _ISA_IRQ(4)
#define IRQ_ISA_FLOPPY _ISA_IRQ(6)
#define IRQ_ISA_PRINTER _ISA_IRQ(7)
#define IRQ_ISA_RTC_ALARM _ISA_IRQ(8)
#define IRQ_ISA_2 _ISA_IRQ(9)
#define IRQ_ISA_PS2MOUSE _ISA_IRQ(12)
#define IRQ_ISA_HARDDISK1 _ISA_IRQ(14)
#define IRQ_ISA_HARDDISK2 _ISA_IRQ(15)
#define IRQ_MASK_UART_RX (1 << 2)
#define IRQ_MASK_UART_TX (1 << 3)
#define IRQ_MASK_TIMER1 (1 << 4)
#define IRQ_MASK_TIMER2 (1 << 5)
#define IRQ_MASK_TIMER3 (1 << 6)
#define IRQ_MASK_IN0 (1 << 8)
#define IRQ_MASK_IN1 (1 << 9)
#define IRQ_MASK_IN2 (1 << 10)
#define IRQ_MASK_IN3 (1 << 11)
#define IRQ_MASK_DOORBELLHOST (1 << 15)
#define IRQ_MASK_DMA1 (1 << 16)
#define IRQ_MASK_DMA2 (1 << 17)
#define IRQ_MASK_PCI (1 << 18)
#define IRQ_MASK_SDRAMPARITY (1 << 24)
#define IRQ_MASK_I2OINPOST (1 << 25)
#define IRQ_MASK_PCI_ABORT ((1 << 29) | (1 << 30))
#define IRQ_MASK_PCI_SERR (1 << 23)
#define IRQ_MASK_DISCARD_TIMER (1 << 27)
#define IRQ_MASK_PCI_DPERR (1 << 28)
#define IRQ_MASK_PCI_PERR (1 << 31)
/*
* Netwinder interrupt allocations
*/
#define IRQ_NETWINDER_ETHER10 IRQ_IN0
#define IRQ_NETWINDER_ETHER100 IRQ_IN1
#define IRQ_NETWINDER_VIDCOMP IRQ_IN2
#define IRQ_NETWINDER_PS2MOUSE _ISA_IRQ(5)
#define IRQ_NETWINDER_IR _ISA_IRQ(6)
#define IRQ_NETWINDER_BUTTON _ISA_IRQ(10)
#define IRQ_NETWINDER_VGA _ISA_IRQ(11)
#define IRQ_NETWINDER_SOUND _ISA_IRQ(12)
#define I8042_KBD_IRQ IRQ_ISA_KEYBOARD
#define I8042_AUX_IRQ (machine_is_netwinder() ? IRQ_NETWINDER_PS2MOUSE : IRQ_ISA_PS2MOUSE)
#define IRQ_FLOPPYDISK IRQ_ISA_FLOPPY
#define irq_canonicalize(_i) (((_i) == IRQ_ISA_CASCADE) ? IRQ_ISA_2 : _i)
Annotation
- Immediate include surface: `asm/mach-types.h`.
- Atlas domain: Architecture Layer / arch/arm.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.