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1 | /* |
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2 | * LSAPIC Interrupt Controller |
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3 | * |
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4 | * This takes care of interrupts that are generated by the CPU's |
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5 | * internal Streamlined Advanced Programmable Interrupt Controller |
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6 | * (LSAPIC), such as the ITC and IPI interrupts. |
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7 | * |
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8 | * Copyright (C) 1999 VA Linux Systems |
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9 | * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> |
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10 | * Copyright (C) 2000 Hewlett-Packard Co |
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11 | * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com> |
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12 | */ |
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13 | |
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14 | #include <linux/sched.h> |
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15 | #include <linux/irq.h> |
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16 | |
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17 | static unsigned int |
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18 | lsapic_noop_startup (unsigned int irq) |
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19 | { |
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20 | return 0; |
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21 | } |
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22 | |
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23 | static void |
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24 | lsapic_noop (unsigned int irq) |
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25 | { |
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26 | /* nuthing to do... */ |
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27 | } |
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28 | |
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29 | struct hw_interrupt_type irq_type_ia64_lsapic = { |
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30 | .typename = "LSAPIC", |
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31 | .startup = lsapic_noop_startup, |
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32 | .shutdown = lsapic_noop, |
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33 | .enable = lsapic_noop, |
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34 | .disable = lsapic_noop, |
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35 | .ack = lsapic_noop, |
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36 | .end = lsapic_noop |
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37 | }; |
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