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  • TabularUnified kernel/arch/sparc64/src/trap/interrupt.c

    r6cd9aa6 r214ec25c  
    11/*
    22 * Copyright (c) 2005 Jakub Jermar
     3 * Copyright (c) 2009 Pavel Rimsky
    34 * All rights reserved.
    45 *
    … …  
    3435
    3536#include <arch/interrupt.h>
     37#include <arch/trap/interrupt.h>
    3638#include <arch/sparc64.h>
    37 #include <arch/trap/interrupt.h>
    3839#include <interrupt.h>
    3940#include <ddi/irq.h>
    40 #include <arch/types.h>
     41#include <typedefs.h>
    4142#include <debug.h>
    4243#include <arch/asm.h>
    … …  
    5051/** Register Interrupt Level Handler.
    5152 *
    52  * @param n Interrupt Level (1 - 15).
    53  * @param name Short descriptive string.
    54  * @param f Handler.
     53 * @param n       Interrupt Level (1 - 15).
     54 * @param name    Short descriptive string.
     55 * @param handler Handler.
     56 *
    5557 */
    56 void interrupt_register(int n, const char *name, iroutine f)
     58void interrupt_register(unsigned int n, const char *name, iroutine_t handler)
    5759{
    58         ASSERT(n >= IVT_FIRST && n <= IVT_ITEMS);
     60        ASSERT(n >= IVT_FIRST);
     61        ASSERT(n <= IVT_ITEMS);
    5962       
    60         exc_register(n - 1, name, f);
    61 }
    62 
    63 /** Process hardware interrupt.
    64  *
    65  * @param n Ignored.
    66  * @param istate Ignored.
    67  */
    68 void interrupt(int n, istate_t *istate)
    69 {
    70         uint64_t status;
    71         uint64_t intrcv;
    72         uint64_t data0;
    73         status = asi_u64_read(ASI_INTR_DISPATCH_STATUS, 0);
    74         if (status & (!INTR_DISPATCH_STATUS_BUSY))
    75                 panic("Interrupt Dispatch Status busy bit not set.");
    76 
    77         intrcv = asi_u64_read(ASI_INTR_RECEIVE, 0);
    78 #if defined (US)
    79         data0 = asi_u64_read(ASI_INTR_R, ASI_UDB_INTR_R_DATA_0);
    80 #elif defined (US3)
    81         data0 = asi_u64_read(ASI_INTR_R, VA_INTR_R_DATA_0);
    82 #endif
    83 
    84         irq_t *irq = irq_dispatch_and_lock(data0);
    85         if (irq) {
    86                 /*
    87                  * The IRQ handler was found.
    88                  */
    89                 irq->handler(irq);
    90                 /*
    91                  * See if there is a clear-interrupt-routine and call it.
    92                  */
    93                 if (irq->cir) {
    94                         irq->cir(irq->cir_arg, irq->inr);
    95                 }
    96                 spinlock_unlock(&irq->lock);
    97         } else if (data0 > config.base) {
    98                 /*
    99                  * This is a cross-call.
    100                  * data0 contains address of the kernel function.
    101                  * We call the function only after we verify
    102                  * it is one of the supported ones.
    103                  */
    104 #ifdef CONFIG_SMP
    105                 if (data0 == (uintptr_t) tlb_shootdown_ipi_recv) {
    106                         tlb_shootdown_ipi_recv();
    107                 }
    108 #endif
    109         } else {
    110                 /*
    111                  * Spurious interrupt.
    112                  */
    113 #ifdef CONFIG_DEBUG
    114                 printf("cpu%u: spurious interrupt (intrcv=%#" PRIx64
    115                     ", data0=%#" PRIx64 ")\n", CPU->id, intrcv, data0);
    116 #endif
    117         }
    118 
    119         membar();
    120         asi_u64_write(ASI_INTR_RECEIVE, 0, 0);
     63        exc_register(n - IVT_FIRST, name, true, handler);
    12164}
    12265
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