| 0,0 → 1,111 |
|---|
| /* |
| * Copyright (c) 2005 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup sparc64interrupt |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #include <arch/interrupt.h> |
| #include <arch/sparc64.h> |
| #include <arch/trap/interrupt.h> |
| #include <interrupt.h> |
| #include <ddi/irq.h> |
| #include <arch/types.h> |
| #include <debug.h> |
| #include <arch/asm.h> |
| #include <arch/barrier.h> |
| #include <print.h> |
| #include <arch.h> |
| #include <mm/tlb.h> |
| #include <config.h> |
| #include <synch/spinlock.h> |
| |
| /** Process hardware interrupt. |
| * |
| * @param n Ignored. |
| * @param istate Ignored. |
| */ |
| void interrupt(int n, istate_t *istate) |
| { |
| uint64_t status; |
| uint64_t intrcv; |
| uint64_t data0; |
| status = asi_u64_read(ASI_INTR_DISPATCH_STATUS, 0); |
| if (status & (!INTR_DISPATCH_STATUS_BUSY)) |
| panic("Interrupt Dispatch Status busy bit not set\n"); |
| |
| intrcv = asi_u64_read(ASI_INTR_RECEIVE, 0); |
| #if defined (US) |
| data0 = asi_u64_read(ASI_INTR_R, ASI_UDB_INTR_R_DATA_0); |
| #elif defined (US3) |
| data0 = asi_u64_read(ASI_INTR_R, VA_INTR_R_DATA_0); |
| #endif |
| |
| irq_t *irq = irq_dispatch_and_lock(data0); |
| if (irq) { |
| /* |
| * The IRQ handler was found. |
| */ |
| irq->handler(irq, irq->arg); |
| /* |
| * See if there is a clear-interrupt-routine and call it. |
| */ |
| if (irq->cir) { |
| irq->cir(irq->cir_arg, irq->inr); |
| } |
| spinlock_unlock(&irq->lock); |
| } else if (data0 > config.base) { |
| /* |
| * This is a cross-call. |
| * data0 contains address of the kernel function. |
| * We call the function only after we verify |
| * it is one of the supported ones. |
| */ |
| #ifdef CONFIG_SMP |
| if (data0 == (uintptr_t) tlb_shootdown_ipi_recv) { |
| tlb_shootdown_ipi_recv(); |
| } |
| #endif |
| } else { |
| /* |
| * Spurious interrupt. |
| */ |
| #ifdef CONFIG_DEBUG |
| printf("cpu%u: spurious interrupt (intrcv=%#" PRIx64 |
| ", data0=%#" PRIx64 ")\n", CPU->id, intrcv, data0); |
| #endif |
| } |
| |
| membar(); |
| asi_u64_write(ASI_INTR_RECEIVE, 0, 0); |
| } |
| |
| /** @} |
| */ |