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Linux Kernel
3.7.1
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All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
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Linux Kernel
3.7.1
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#include <linux/types.h>#include <linux/init.h>#include <linux/kernel.h>#include <linux/interrupt.h>#include <linux/irq.h>#include <linux/io.h>#include <asm/traps.h>#include <asm/coldfire.h>#include <asm/mcfsim.h>Go to the source code of this file.
Macros | |
| #define | EIRQ1 25 |
| #define | EIRQ7 31 |
Functions | |
| void | mcf_setimr (int index) |
| void | mcf_clrimr (int index) |
| void | mcf_maskimr (unsigned int mask) |
| void | mcf_autovector (int irq) |
| void __init | init_IRQ (void) |
Variables | |
| unsigned char | mcf_irq2imr [NR_IRQS] |
The hexagon core comes with a first-level interrupt controller with 32 total possible interrupts. When the core is embedded into different systems/platforms, it is typically wrapped by macro cells that provide one or more second-level interrupt controllers that are cascaded into one or more of the first-level interrupts handled here. The precise wiring of these other irqs varies from platform to platform, and are set up & configured in the platform-specific files.
The first-level interrupt controller is wrapped by the VM, which virtualizes the interrupt controller for us. It provides a very simple, fast & efficient API, and so the fasteoi handler is appropriate for this case.
1.8.2