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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> |
| 1849 | jermar | 38 | #include <arch/drivers/fhc.h> |
| 1896 | jermar | 39 | #include <arch/drivers/kbd.h> |
| 1861 | jermar | 40 | #include <typedefs.h> |
| 747 | jermar | 41 | #include <arch/types.h> |
| 664 | jermar | 42 | #include <debug.h> |
| 1265 | jermar | 43 | #include <ipc/sysipc.h> |
| 1849 | jermar | 44 | #include <arch/asm.h> |
| 45 | #include <arch/barrier.h> |
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| 1875 | jermar | 46 | #include <print.h> |
| 1849 | jermar | 47 | #include <genarch/kbd/z8530.h> |
| 1904 | jermar | 48 | #include <arch.h> |
| 49 | #include <mm/tlb.h> |
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| 50 | #include <config.h> |
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| 1849 | jermar | 51 | |
| 664 | jermar | 52 | /** Register Interrupt Level Handler. |
| 53 | * |
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| 54 | * @param n Interrupt Level (1 - 15). |
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| 55 | * @param name Short descriptive string. |
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| 56 | * @param f Handler. |
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| 57 | */ |
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| 58 | void interrupt_register(int n, const char *name, iroutine f) |
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| 59 | { |
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| 60 | ASSERT(n >= IVT_FIRST && n <= IVT_ITEMS); |
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| 61 | |||
| 62 | exc_register(n - 1, name, f); |
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| 63 | } |
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| 1265 | jermar | 64 | |
| 65 | /* Reregister irq to be IPC-ready */ |
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| 1780 | jermar | 66 | void irq_ipc_bind_arch(unative_t irq) |
| 1265 | jermar | 67 | { |
| 1875 | jermar | 68 | #ifdef CONFIG_Z8530 |
| 1896 | jermar | 69 | if (kbd_type == KBD_Z8530) |
| 70 | z8530_belongs_to_kernel = false; |
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| 1875 | jermar | 71 | #endif |
| 1265 | jermar | 72 | } |
| 1702 | cejka | 73 | |
| 1861 | jermar | 74 | void interrupt(int n, istate_t *istate) |
| 1849 | jermar | 75 | { |
| 76 | uint64_t intrcv; |
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| 77 | uint64_t data0; |
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| 78 | |||
| 79 | intrcv = asi_u64_read(ASI_INTR_RECEIVE, 0); |
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| 80 | data0 = asi_u64_read(ASI_UDB_INTR_R, ASI_UDB_INTR_R_DATA_0); |
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| 81 | |||
| 82 | switch (data0) { |
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| 83 | #ifdef CONFIG_Z8530 |
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| 84 | case Z8530_INTRCV_DATA0: |
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| 1896 | jermar | 85 | if (kbd_type != KBD_Z8530) |
| 86 | break; |
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| 1849 | jermar | 87 | /* |
| 88 | * So far, we know we got this interrupt through the FHC. |
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| 89 | * Since we don't have enough information about the FHC and |
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| 90 | * because the interrupt looks like level sensitive, |
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| 91 | * we cannot handle it by scheduling one of the level |
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| 92 | * interrupt traps. Call the interrupt handler directly. |
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| 93 | */ |
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| 1875 | jermar | 94 | |
| 95 | if (z8530_belongs_to_kernel) |
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| 96 | z8530_interrupt(); |
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| 97 | else |
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| 98 | ipc_irq_send_notif(0); |
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| 1849 | jermar | 99 | fhc_uart_reset(); |
| 100 | break; |
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| 1875 | jermar | 101 | |
| 1849 | jermar | 102 | #endif |
| 1904 | jermar | 103 | default: |
| 104 | if (data0 > config.base) { |
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| 105 | /* |
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| 106 | * This is a cross-call. |
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| 107 | * data0 contains address of kernel function. |
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| 108 | * We call the function only after we verify |
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| 109 | * it is on of the supported ones. |
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| 110 | */ |
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| 111 | #ifdef CONFIG_SMP |
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| 112 | if (data0 == (uintptr_t) tlb_shootdown_ipi_recv) { |
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| 113 | tlb_shootdown_ipi_recv(); |
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| 114 | break; |
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| 115 | } |
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| 116 | #endif |
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| 117 | } |
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| 118 | |||
| 119 | printf("cpu%d: spurious interrupt (intrcv=%#llx, data0=%#llx)\n", CPU->id, intrcv, data0); |
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| 120 | break; |
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| 1849 | jermar | 121 | } |
| 122 | |||
| 123 | membar(); |
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| 124 | asi_u64_write(ASI_INTR_RECEIVE, 0, 0); |
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| 125 | } |
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| 126 | |||
| 1703 | jermar | 127 | /** @} |
| 1702 | cejka | 128 | */ |