fde15c3a3a
The external interrupt handlers have a parameter called ext_int_code. Besides the name this paramter does not only contain the ext_int_code but in addition also the "cpu address" (POP) which caused the external interrupt. To make the code a bit more obvious pass a struct instead so the called function can easily distinguish between external interrupt code and cpu address. The cpu address field however is named "subcode" since some external interrupt sources do not pass a cpu address but a different parameter (or none at all). Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
49 lines
869 B
C
49 lines
869 B
C
#ifndef _ASM_IRQ_H
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#define _ASM_IRQ_H
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#include <linux/hardirq.h>
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#include <linux/types.h>
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enum interruption_class {
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EXTERNAL_INTERRUPT,
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IO_INTERRUPT,
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EXTINT_CLK,
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EXTINT_EXC,
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EXTINT_EMS,
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EXTINT_TMR,
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EXTINT_TLA,
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EXTINT_PFL,
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EXTINT_DSD,
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EXTINT_VRT,
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EXTINT_SCP,
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EXTINT_IUC,
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EXTINT_CPM,
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IOINT_CIO,
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IOINT_QAI,
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IOINT_DAS,
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IOINT_C15,
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IOINT_C70,
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IOINT_TAP,
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IOINT_VMR,
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IOINT_LCS,
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IOINT_CLW,
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IOINT_CTC,
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IOINT_APB,
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IOINT_CSC,
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NMI_NMI,
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NR_IRQS,
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};
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struct ext_code {
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unsigned short subcode;
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unsigned short code;
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};
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typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);
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int register_external_interrupt(u16 code, ext_int_handler_t handler);
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int unregister_external_interrupt(u16 code, ext_int_handler_t handler);
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void service_subclass_irq_register(void);
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void service_subclass_irq_unregister(void);
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#endif /* _ASM_IRQ_H */
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