1 /* 2 * Copyright 2008, Dustin Howett, dustin.howett@gmail.com. All rights reserved. 3 * Copyright 2005, Axel Dörfler, axeld@pinc-software.de. All rights reserved. 4 * Distributed under the terms of the MIT License. 5 * 6 * Copyright 2001-2002, Travis Geiselbrecht. All rights reserved. 7 * Distributed under the terms of the NewOS License. 8 */ 9 #ifndef _KERNEL_ARCH_x86_APIC_H 10 #define _KERNEL_ARCH_x86_APIC_H 11 12 #include <boot/kernel_args.h> 13 #include <SupportDefs.h> 14 15 #define APIC_ENABLE 0x100 16 #define APIC_FOCUS (~(1 << 9)) 17 #define APIC_SIV (0xff) 18 19 // offsets to APIC register 20 #define APIC_ID 0x020 21 #define APIC_VERSION 0x030 22 #define APIC_TASK_PRIORITY 0x080 23 #define APIC_ARBITRATION_PRIORITY 0x090 24 #define APIC_PROCESSOR_PRIORITY 0x0a0 25 #define APIC_EOI 0x0b0 26 #define APIC_LOGICAL_DEST 0x0d0 27 #define APIC_DEST_FORMAT 0x0e0 28 #define APIC_SPURIOUS_INTR_VECTOR 0x0f0 29 #define APIC_ERROR_STATUS 0x280 30 #define APIC_INTR_COMMAND_1 0x300 // bits 0-31 31 #define APIC_INTR_COMMAND_2 0x310 // bits 32-63 32 #define APIC_LVT_TIMER 0x320 33 #define APIC_LVT_THERMAL_SENSOR 0x330 34 #define APIC_LVT_PERFMON_COUNTERS 0x340 35 #define APIC_LVT_LINT0 0x350 36 #define APIC_LVT_LINT1 0x360 37 #define APIC_LVT_ERROR 0x370 38 #define APIC_INITIAL_TIMER_COUNT 0x380 39 #define APIC_CURRENT_TIMER_COUNT 0x390 40 #define APIC_TIMER_DIVIDE_CONFIG 0x3e0 41 42 /* standard APIC interrupt defines */ 43 #define APIC_DELIVERY_MODE_FIXED 0 44 #define APIC_DELIVERY_MODE_LOWESTPRI (1 << 8) // ICR1 only 45 #define APIC_DELIVERY_MODE_SMI (2 << 8) 46 #define APIC_DELIVERY_MODE_NMI (4 << 8) 47 #define APIC_DELIVERY_MODE_INIT (5 << 8) 48 #define APIC_DELIVERY_MODE_STARTUP (6 << 8) // ICR1 only 49 #define APIC_DELIVERY_MODE_ExtINT (7 << 8) // LINT0/1 only 50 51 #define APIC_DELIVERY_STATUS (1 << 12) 52 #define APIC_TRIGGER_MODE_LEVEL (1 << 15) 53 54 /* Interrupt Command defines */ 55 #define APIC_INTR_COMMAND_1_MASK 0xfff32000 56 #define APIC_INTR_COMMAND_2_MASK 0x00ffffff 57 58 #define APIC_INTR_COMMAND_1_DEST_MODE_PHYSICAL 0 59 #define APIC_INTR_COMMAND_1_DEST_MODE_LOGICAL (1 << 11) 60 61 #define APIC_INTR_COMMAND_1_ASSERT (1 << 14) 62 63 #define APIC_INTR_COMMAND_1_DEST_FIELD 0 64 #define APIC_INTR_COMMAND_1_DEST_SELF (1 << 18) 65 #define APIC_INTR_COMMAND_1_DEST_ALL (2 << 18) 66 #define APIC_INTR_COMMAND_1_DEST_ALL_BUT_SELF (3 << 18) 67 68 /* Local Vector Table defines */ 69 #define APIC_LVT_MASKED (1 << 16) 70 71 // timer defines 72 #define APIC_LVT_TIMER_MASK 0xfffcef00 73 74 // LINT0/1 defines 75 #define APIC_LVT_LINT_MASK 0xfffe0800 76 #define APIC_LVT_LINT_INPUT_POLARITY (1 << 13) 77 78 // Timer Divide Config Divisors 79 #define APIC_TIMER_DIVIDE_CONFIG_1 0x0b 80 #define APIC_TIMER_DIVIDE_CONFIG_2 0x00 81 #define APIC_TIMER_DIVIDE_CONFIG_4 0x01 82 #define APIC_TIMER_DIVIDE_CONFIG_8 0x02 83 #define APIC_TIMER_DIVIDE_CONFIG_16 0x03 84 #define APIC_TIMER_DIVIDE_CONFIG_32 0x08 85 #define APIC_TIMER_DIVIDE_CONFIG_64 0x09 86 #define APIC_TIMER_DIVIDE_CONFIG_128 0x0a 87 88 /* 89 #define APIC_LVT_DM 0x00000700 90 #define APIC_LVT_DM_ExtINT 0x00000700 91 #define APIC_LVT_DM_NMI 0x00000400 92 #define APIC_LVT_IIPP 0x00002000 93 #define APIC_LVT_TM 0x00008000 94 #define APIC_LVT_M 0x00010000 95 #define APIC_LVT_OS 0x00020000 96 97 #define APIC_TPR_PRIO 0x000000ff 98 #define APIC_TPR_INT 0x000000f0 99 #define APIC_TPR_SUB 0x0000000f 100 101 #define APIC_SVR_SWEN 0x00000100 102 #define APIC_SVR_FOCUS 0x00000200 103 104 #define IOAPIC_ID 0x0 105 #define IOAPIC_VERSION 0x1 106 #define IOAPIC_ARB 0x2 107 #define IOAPIC_REDIR_TABLE 0x10 108 */ 109 110 #if !_BOOT_MODE 111 112 bool apic_available(); 113 bool x2apic_available(); 114 uint32 apic_read(uint32 offset); 115 void apic_write(uint32 offset, uint32 data); 116 uint32 apic_local_id(); 117 uint32 apic_local_version(); 118 uint32 apic_task_priority(); 119 void apic_set_task_priority(uint32 config); 120 void apic_end_of_interrupt(); 121 122 void apic_disable_local_ints(); 123 124 uint32 apic_spurious_intr_vector(); 125 void apic_set_spurious_intr_vector(uint32 config); 126 127 void apic_set_interrupt_command(uint32 destination, uint32 mode); 128 bool apic_interrupt_delivered(void); 129 130 uint32 apic_lvt_timer(); 131 void apic_set_lvt_timer(uint32 config); 132 uint32 apic_lvt_error(); 133 void apic_set_lvt_error(uint32 config); 134 uint32 apic_lvt_initial_timer_count(); 135 void apic_set_lvt_initial_timer_count(uint32 config); 136 uint32 apic_lvt_timer_divide_config(); 137 void apic_set_lvt_timer_divide_config(uint32 config); 138 139 status_t apic_init(kernel_args *args); 140 status_t apic_per_cpu_init(kernel_args *args, int32 cpu); 141 142 #endif // !_BOOT_MODE 143 144 #endif /* _KERNEL_ARCH_x86_APIC_H */ 145