[75] | 1 | /* |
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| 2 | * soclib_xcu.c - soclib XCU driver API implementation. |
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| 3 | * |
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| 4 | * Authors Alain Greiner (2016) |
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| 5 | * |
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| 6 | * Copyright (c) UPMC Sorbonne Universites |
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| 7 | * |
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| 8 | * This file is part of ALMOS-MKH. |
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| 9 | * |
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| 10 | * ALMOS-MKH.is free software; you can redistribute it and/or modify it |
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| 11 | * under the terms of the GNU General Public License as published by |
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| 12 | * the Free Software Foundation; version 2.0 of the License. |
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| 13 | * |
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| 14 | * ALMOS-MKH.is distributed in the hope that it will be useful, but |
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| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 17 | * General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with ALMOS-kernel; if not, write to the Free Software Foundation, |
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| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | */ |
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| 23 | |
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| 24 | #include <soclib_xcu.h> |
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| 25 | #include <hal_types.h> |
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| 26 | #include <core.h> |
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| 27 | #include <chdev.h> |
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| 28 | |
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[135] | 29 | #include <hal_apic.h> |
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[129] | 30 | #include <hal_internal.h> |
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| 31 | |
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[135] | 32 | extern size_t ioapic_pins; |
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| 33 | |
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[137] | 34 | uint64_t apic_fake_status __in_kdata = 0; |
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| 35 | |
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| 36 | /* |
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| 37 | * These indexes are used to translate a type::idx to a pin on the IOAPIC. |
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| 38 | */ |
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| 39 | uint32_t hwi_baseidx __in_kdata = 0; |
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| 40 | uint32_t wti_baseidx __in_kdata = 0; |
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| 41 | uint32_t pti_baseidx __in_kdata = 0; |
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| 42 | |
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[135] | 43 | void soclib_xcu_init(chdev_t *icu, lid_t lid) |
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[75] | 44 | { |
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[135] | 45 | size_t i; |
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| 46 | |
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| 47 | /* disable all IRQs */ |
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| 48 | for (i = 0; i < ioapic_pins; i++) { |
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[137] | 49 | hal_ioapic_disable_entry(i); |
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[135] | 50 | } |
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| 51 | |
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[129] | 52 | x86_panic((char *)__func__); |
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[75] | 53 | } |
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| 54 | |
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[137] | 55 | void soclib_xcu_enable_irq(chdev_t *icu, uint32_t idx, uint32_t type, |
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| 56 | lid_t lid) |
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[75] | 57 | { |
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[137] | 58 | uint32_t pin; |
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| 59 | |
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| 60 | switch (type) { |
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| 61 | case HWI_TYPE: |
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| 62 | pin = hwi_baseidx + idx; |
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| 63 | case WTI_TYPE: |
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| 64 | pin = wti_baseidx + idx; |
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| 65 | case PTI_TYPE: |
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| 66 | pin = pti_baseidx + idx; |
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| 67 | default: |
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| 68 | x86_panic("enabling wrong irq"); |
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| 69 | } |
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| 70 | |
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[129] | 71 | x86_panic((char *)__func__); |
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[75] | 72 | } |
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| 73 | |
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[137] | 74 | void soclib_xcu_disable_irq(chdev_t *icu, uint32_t idx, uint32_t type, |
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| 75 | lid_t lid) |
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[75] | 76 | { |
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[129] | 77 | x86_panic((char *)__func__); |
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[75] | 78 | } |
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| 79 | |
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| 80 | void soclib_xcu_get_masks( chdev_t * icu, |
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| 81 | lid_t lid, |
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| 82 | uint32_t * hwi_mask, |
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| 83 | uint32_t * wti_mask, |
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| 84 | uint32_t * pti_mask ) |
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| 85 | { |
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[129] | 86 | x86_panic((char *)__func__); |
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[75] | 87 | } |
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| 88 | |
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| 89 | void soclib_xcu_set_period( chdev_t * icu, |
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| 90 | uint32_t index, |
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| 91 | uint32_t period ) |
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| 92 | { |
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[129] | 93 | x86_panic((char *)__func__); |
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[75] | 94 | } |
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| 95 | |
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| 96 | uint32_t soclib_xcu_ack_timer( chdev_t * icu, |
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| 97 | uint32_t index ) |
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| 98 | { |
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[129] | 99 | x86_panic((char *)__func__); |
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[81] | 100 | return 0; |
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[75] | 101 | } |
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| 102 | |
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[137] | 103 | |
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| 104 | |
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| 105 | |
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| 106 | |
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| 107 | void soclib_xcu_get_status(chdev_t *icu, lid_t lid, uint32_t *hwi_status, |
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| 108 | uint32_t *wti_status, uint32_t *pti_status) |
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[75] | 109 | { |
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[137] | 110 | if (lid != 0) { |
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| 111 | x86_panic("xcu_get_status should have lid==0"); |
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| 112 | } |
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| 113 | |
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[129] | 114 | x86_panic((char *)__func__); |
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[75] | 115 | } |
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| 116 | |
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[137] | 117 | |
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| 118 | |
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| 119 | |
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| 120 | |
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| 121 | |
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[75] | 122 | void soclib_xcu_send_ipi( xptr_t icu_xp, |
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| 123 | lid_t lid ) |
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| 124 | { |
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[129] | 125 | x86_panic((char *)__func__); |
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[75] | 126 | } |
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| 127 | |
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| 128 | uint32_t * soclib_xcu_wti_ptr( chdev_t * icu, |
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| 129 | uint32_t index ) |
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| 130 | { |
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[129] | 131 | x86_panic((char *)__func__); |
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[81] | 132 | return NULL; |
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[75] | 133 | } |
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