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| Rev | Author | Line No. | Line |
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| 664 | jermar | 1 | /* |
| 2 | * Copyright (C) 2005 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 1705 | cejka | 29 | /** @addtogroup sparc64interrupt |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 664 | jermar | 35 | #include <arch/interrupt.h> |
| 1849 | jermar | 36 | #include <arch/trap/interrupt.h> |
| 664 | jermar | 37 | #include <interrupt.h> |
| 1920 | jermar | 38 | #include <ddi/irq.h> |
| 1861 | jermar | 39 | #include <typedefs.h> |
| 747 | jermar | 40 | #include <arch/types.h> |
| 664 | jermar | 41 | #include <debug.h> |
| 1265 | jermar | 42 | #include <ipc/sysipc.h> |
| 1849 | jermar | 43 | #include <arch/asm.h> |
| 44 | #include <arch/barrier.h> |
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| 1875 | jermar | 45 | #include <print.h> |
| 1904 | jermar | 46 | #include <arch.h> |
| 47 | #include <mm/tlb.h> |
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| 48 | #include <config.h> |
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| 1922 | jermar | 49 | #include <synch/spinlock.h> |
| 1849 | jermar | 50 | |
| 1919 | jermar | 51 | /* |
| 52 | * To be removed once we get rid of the dependency in ipc_irq_bind_arch(). |
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| 53 | */ |
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| 54 | #include <arch/drivers/kbd.h> |
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| 55 | #include <genarch/kbd/z8530.h> |
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| 56 | |||
| 664 | jermar | 57 | /** Register Interrupt Level Handler. |
| 58 | * |
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| 59 | * @param n Interrupt Level (1 - 15). |
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| 60 | * @param name Short descriptive string. |
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| 61 | * @param f Handler. |
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| 62 | */ |
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| 63 | void interrupt_register(int n, const char *name, iroutine f) |
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| 64 | { |
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| 65 | ASSERT(n >= IVT_FIRST && n <= IVT_ITEMS); |
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| 66 | |||
| 67 | exc_register(n - 1, name, f); |
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| 68 | } |
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| 1265 | jermar | 69 | |
| 70 | /* Reregister irq to be IPC-ready */ |
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| 1780 | jermar | 71 | void irq_ipc_bind_arch(unative_t irq) |
| 1265 | jermar | 72 | { |
| 1875 | jermar | 73 | #ifdef CONFIG_Z8530 |
| 1896 | jermar | 74 | if (kbd_type == KBD_Z8530) |
| 75 | z8530_belongs_to_kernel = false; |
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| 1875 | jermar | 76 | #endif |
| 1265 | jermar | 77 | } |
| 1702 | cejka | 78 | |
| 1919 | jermar | 79 | /** Process hardware interrupt. |
| 80 | * |
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| 81 | * @param n Ignored. |
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| 82 | * @param istate Ignored. |
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| 83 | */ |
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| 1861 | jermar | 84 | void interrupt(int n, istate_t *istate) |
| 1849 | jermar | 85 | { |
| 86 | uint64_t intrcv; |
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| 87 | uint64_t data0; |
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| 88 | |||
| 89 | intrcv = asi_u64_read(ASI_INTR_RECEIVE, 0); |
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| 90 | data0 = asi_u64_read(ASI_UDB_INTR_R, ASI_UDB_INTR_R_DATA_0); |
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| 91 | |||
| 1922 | jermar | 92 | irq_t *irq = irq_dispatch_and_lock(data0); |
| 1919 | jermar | 93 | if (irq) { |
| 1849 | jermar | 94 | /* |
| 1919 | jermar | 95 | * The IRQ handler was found. |
| 1849 | jermar | 96 | */ |
| 1919 | jermar | 97 | irq->handler(irq, irq->arg); |
| 1922 | jermar | 98 | spinlock_unlock(&irq->lock); |
| 1919 | jermar | 99 | } else if (data0 > config.base) { |
| 100 | /* |
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| 101 | * This is a cross-call. |
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| 102 | * data0 contains address of kernel function. |
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| 103 | * We call the function only after we verify |
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| 104 | * it is on of the supported ones. |
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| 105 | */ |
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| 1904 | jermar | 106 | #ifdef CONFIG_SMP |
| 1919 | jermar | 107 | if (data0 == (uintptr_t) tlb_shootdown_ipi_recv) { |
| 108 | tlb_shootdown_ipi_recv(); |
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| 109 | } |
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| 1904 | jermar | 110 | #endif |
| 1919 | jermar | 111 | } else { |
| 112 | /* |
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| 113 | * Spurious interrupt. |
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| 114 | */ |
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| 115 | #ifdef CONFIG_DEBUG |
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| 1904 | jermar | 116 | printf("cpu%d: spurious interrupt (intrcv=%#llx, data0=%#llx)\n", CPU->id, intrcv, data0); |
| 1919 | jermar | 117 | #endif |
| 1849 | jermar | 118 | } |
| 119 | |||
| 120 | membar(); |
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| 121 | asi_u64_write(ASI_INTR_RECEIVE, 0, 0); |
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| 122 | } |
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| 123 | |||
| 1703 | jermar | 124 | /** @} |
| 1702 | cejka | 125 | */ |