466 lines
14 KiB
C
466 lines
14 KiB
C
/*
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* Copyright (c) 1996, by Peter Wemm and Steve Passe
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. The name of the developer may NOT be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_APIC_H_
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#define _MACHINE_APIC_H_
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/*
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* Local && I/O APIC definitions.
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*/
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/*
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* Pentium P54C+ Build-in APIC
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* (Advanced programmable Interrupt Controller)
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*
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* Base Address of Build-in APIC in memory location
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* is 0xfee00000.
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*
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* Map of APIC REgisters:
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*
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* Offset (hex) Description Read/Write state
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* 000 Reserved
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* 010 Reserved
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* 020 ID Local APIC ID R/W
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* 030 VER Local APIC Version R
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* 040 Reserved
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* 050 Reserved
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* 060 Reserved
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* 070 Reserved
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* 080 Task Priority Register R/W
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* 090 Arbitration Priority Register R
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* 0A0 Processor Priority Register R
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* 0B0 EOI Register W
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* 0C0 RRR Remote read R
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* 0D0 Logical Destination R/W
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* 0E0 Destination Format Register 0..27 R; 28..31 R/W
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* 0F0 SVR Spurious Interrupt Vector Reg. 0..3 R; 4..9 R/W
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* 100 ISR 000-031 R
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* 110 ISR 032-063 R
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* 120 ISR 064-095 R
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* 130 ISR 095-128 R
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* 140 ISR 128-159 R
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* 150 ISR 160-191 R
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* 160 ISR 192-223 R
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* 170 ISR 224-255 R
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* 180 TMR 000-031 R
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* 190 TMR 032-063 R
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* 1A0 TMR 064-095 R
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* 1B0 TMR 095-128 R
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* 1C0 TMR 128-159 R
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* 1D0 TMR 160-191 R
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* 1E0 TMR 192-223 R
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* 1F0 TMR 224-255 R
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* 200 IRR 000-031 R
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* 210 IRR 032-063 R
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* 220 IRR 064-095 R
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* 230 IRR 095-128 R
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* 240 IRR 128-159 R
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* 250 IRR 160-191 R
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* 260 IRR 192-223 R
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* 270 IRR 224-255 R
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* 280 Error Status Register R
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* 290 Reserved
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* 2A0 Reserved
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* 2B0 Reserved
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* 2C0 Reserved
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* 2D0 Reserved
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* 2E0 Reserved
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* 2F0 Reserved
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* 300 ICR_LOW Interrupt Command Reg. (0-31) R/W
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* 310 ICR_HI Interrupt Command Reg. (32-63) R/W
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* 320 Local Vector Table (Timer) R/W
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* 330 Reserved
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* 340 Reserved
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* 350 LVT1 Local Vector Table (LINT0) R/W
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* 360 LVT2 Local Vector Table (LINT1) R/W
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* 370 LVT3 Local Vector Table (ERROR) R/W
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* 380 Initial Count Reg. for Timer R/W
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* 390 Current Count of Timer R
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* 3A0 Reserved
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* 3B0 Reserved
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* 3C0 Reserved
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* 3D0 Reserved
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* 3E0 Timer Divide Configuration Reg. R/W
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* 3F0 Reserved
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*/
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/******************************************************************************
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* global defines, etc.
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*/
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/******************************************************************************
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* LOCAL APIC structure
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*/
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#ifndef LOCORE
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#include <sys/types.h>
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#define PAD3 int : 32; int : 32; int : 32
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#define PAD4 int : 32; int : 32; int : 32; int : 32
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struct LAPIC {
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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u_int32_t id; PAD3;
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u_int32_t version; PAD3;
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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u_int32_t tpr; PAD3;
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u_int32_t apr; PAD3;
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u_int32_t ppr; PAD3;
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u_int32_t eoi; PAD3;
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/* reserved */ PAD4;
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u_int32_t ldr; PAD3;
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u_int32_t dfr; PAD3;
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u_int32_t svr; PAD3;
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u_int32_t isr0; PAD3;
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u_int32_t isr1; PAD3;
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u_int32_t isr2; PAD3;
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u_int32_t isr3; PAD3;
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u_int32_t isr4; PAD3;
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u_int32_t isr5; PAD3;
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u_int32_t isr6; PAD3;
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u_int32_t isr7; PAD3;
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u_int32_t tmr0; PAD3;
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u_int32_t tmr1; PAD3;
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u_int32_t tmr2; PAD3;
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u_int32_t tmr3; PAD3;
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u_int32_t tmr4; PAD3;
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u_int32_t tmr5; PAD3;
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u_int32_t tmr6; PAD3;
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u_int32_t tmr7; PAD3;
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u_int32_t irr0; PAD3;
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u_int32_t irr1; PAD3;
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u_int32_t irr2; PAD3;
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u_int32_t irr3; PAD3;
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u_int32_t irr4; PAD3;
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u_int32_t irr5; PAD3;
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u_int32_t irr6; PAD3;
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u_int32_t irr7; PAD3;
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u_int32_t esr; PAD3;
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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u_int32_t icr_lo; PAD3;
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u_int32_t icr_hi; PAD3;
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u_int32_t lvt_timer; PAD3;
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/* reserved */ PAD4;
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u_int32_t lvt_pcint; PAD3;
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u_int32_t lvt_lint0; PAD3;
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u_int32_t lvt_lint1; PAD3;
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u_int32_t lvt_error; PAD3;
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u_int32_t icr_timer; PAD3;
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u_int32_t ccr_timer; PAD3;
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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/* reserved */ PAD4;
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u_int32_t dcr_timer; PAD3;
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/* reserved */ PAD4;
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};
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typedef struct LAPIC lapic_t;
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/******************************************************************************
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* I/O APIC structure
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*/
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struct IOAPIC {
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u_int32_t ioregsel; PAD3;
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u_int32_t iowin; PAD3;
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};
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typedef struct IOAPIC ioapic_t;
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#undef PAD4
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#undef PAD3
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#endif /* !LOCORE */
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/******************************************************************************
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* various code 'logical' values
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*/
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/* default level for TPR */
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#define LOPRIO_LEVEL 0x00000010 /* TPR of CPU accepting INTs */
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#ifdef GRAB_LOPRIO
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#define ALLHWI_LEVEL 0x00000000 /* TPR of CPU grabbing INTs */
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#endif /** GRAB_LOPRIO */
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/* XXX these 2 don't really belong here... */
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#define COUNT_FIELD 0x00ffffff /* count portion of the lock */
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#define FREE_LOCK 0xffffffff /* value of lock when free */
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/*
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* XXX This code assummes that the reserved field of the
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* local APIC TPR can be written with all 0s.
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* This saves quite a few memory accesses.
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* If the silicon ever changes then things will break!
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* It affects mplock.s, swtch.s, and possibly other files.
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*/
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#define CHEAP_TPR
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/******************************************************************************
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* LOCAL APIC defines
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*/
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/* default physical locations of LOCAL (CPU) APICs */
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#define DEFAULT_APIC_BASE 0xfee00000
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/* fields in VER */
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#define APIC_VER_VERSION 0x000000ff
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#define APIC_VER_MAXLVT 0x00ff0000
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#define MAXLVTSHIFT 16
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/* fields in SVR */
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#define APIC_SVR_VECTOR 0x000000ff
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#define APIC_SVR_VEC_PROG 0x000000f0
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#define APIC_SVR_VEC_FIX 0x0000000f
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#define APIC_SVR_ENABLE 0x00000100
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# define APIC_SVR_SWDIS 0x00000000
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# define APIC_SVR_SWEN 0x00000100
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#define APIC_SVR_FOCUS 0x00000200
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# define APIC_SVR_FEN 0x00000000
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# define APIC_SVR_FDIS 0x00000200
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/* fields in TPR */
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#define APIC_TPR_PRIO 0x000000ff
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# define APIC_TPR_INT 0x000000f0
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# define APIC_TPR_SUB 0x0000000f
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/* fields in ICR_LOW */
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#define APIC_VECTOR_MASK 0x000000ff
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#define APIC_DELMODE_MASK 0x00000700
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# define APIC_DELMODE_FIXED 0x00000000
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# define APIC_DELMODE_LOWPRIO 0x00000100
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# define APIC_DELMODE_SMI 0x00000200
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# define APIC_DELMODE_RR 0x00000300
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# define APIC_DELMODE_NMI 0x00000400
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# define APIC_DELMODE_INIT 0x00000500
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# define APIC_DELMODE_STARTUP 0x00000600
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# define APIC_DELMODE_RESV 0x00000700
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#define APIC_DESTMODE_MASK 0x00000800
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# define APIC_DESTMODE_PHY 0x00000000
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# define APIC_DESTMODE_LOG 0x00000800
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#define APIC_DELSTAT_MASK 0x00001000
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# define APIC_DELSTAT_IDLE 0x00000000
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# define APIC_DELSTAT_PEND 0x00001000
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#define APIC_RESV1_MASK 0x00002000
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#define APIC_LEVEL_MASK 0x00004000
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# define APIC_LEVEL_DEASSERT 0x00000000
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# define APIC_LEVEL_ASSERT 0x00004000
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#define APIC_TRIGMOD_MASK 0x00008000
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# define APIC_TRIGMOD_EDGE 0x00000000
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# define APIC_TRIGMOD_LEVEL 0x00008000
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#define APIC_RRSTAT_MASK 0x00030000
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# define APIC_RRSTAT_INVALID 0x00000000
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# define APIC_RRSTAT_INPROG 0x00010000
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# define APIC_RRSTAT_VALID 0x00020000
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# define APIC_RRSTAT_RESV 0x00030000
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#define APIC_DEST_MASK 0x000c0000
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# define APIC_DEST_DESTFLD 0x00000000
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# define APIC_DEST_SELF 0x00040000
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# define APIC_DEST_ALLISELF 0x00080000
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# define APIC_DEST_ALLESELF 0x000c0000
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#define APIC_RESV2_MASK 0xfff00000
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/* fields in ICR_HIGH */
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#define APIC_ID_MASK 0x0f000000
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/* fields in LVT1/2 */
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#define APIC_LVT_VECTOR 0x000000ff
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#define APIC_LVT_DM 0x00000700
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# define APIC_LVT_DM_FIXED 0x00000000
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# define APIC_LVT_DM_NMI 0x00000400
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# define APIC_LVT_DM_EXTINT 0x00000700
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#define APIC_LVT_DS 0x00001000
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#define APIC_LVT_IIPP 0x00002000
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#define APIC_LVT_IIPP_INTALO 0x00002000
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#define APIC_LVT_IIPP_INTAHI 0x00000000
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#define APIC_LVT_RIRR 0x00004000
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#define APIC_LVT_TM 0x00008000
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#define APIC_LVT_M 0x00010000
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/* fields in LVT Timer */
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#define APIC_LVTT_VECTOR 0x000000ff
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#define APIC_LVTT_DS 0x00001000
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#define APIC_LVTT_M 0x00010000
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#define APIC_LVTT_TM 0x00020000
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/* fields in TDCR */
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#define APIC_TDCR_2 0x00
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#define APIC_TDCR_4 0x01
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#define APIC_TDCR_8 0x02
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#define APIC_TDCR_16 0x03
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#define APIC_TDCR_32 0x08
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#define APIC_TDCR_64 0x09
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#define APIC_TDCR_128 0x0a
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#define APIC_TDCR_1 0x0b
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/*
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* fields in IRR
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* ISA INTerrupts are in bits 16-31 of the 1st IRR register.
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* these masks DON'T EQUAL the isa IRQs of the same name.
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*/
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#define APIC_IRQ0 0x00000001
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#define APIC_IRQ1 0x00000002
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#define APIC_IRQ2 0x00000004
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#define APIC_IRQ3 0x00000008
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#define APIC_IRQ4 0x00000010
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#define APIC_IRQ5 0x00000020
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#define APIC_IRQ6 0x00000040
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#define APIC_IRQ7 0x00000080
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#define APIC_IRQ8 0x00000100
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#define APIC_IRQ9 0x00000200
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#define APIC_IRQ10 0x00000400
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#define APIC_IRQ11 0x00000800
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#define APIC_IRQ12 0x00001000
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#define APIC_IRQ13 0x00002000
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#define APIC_IRQ14 0x00004000
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#define APIC_IRQ15 0x00008000
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#define APIC_IRQ16 0x00010000
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#define APIC_IRQ17 0x00020000
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#define APIC_IRQ18 0x00040000
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#define APIC_IRQ19 0x00080000
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#define APIC_IRQ20 0x00100000
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#define APIC_IRQ21 0x00200000
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#define APIC_IRQ22 0x00400000
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#define APIC_IRQ23 0x00800000
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/******************************************************************************
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* I/O APIC defines
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*/
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/* default physical locations of an IO APIC */
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#define DEFAULT_IO_APIC_BASE 0xfec00000
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/* window register offset */
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#define IOAPIC_WINDOW 0x10
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/* indexes into IO APIC */
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#define IOAPIC_ID 0x00
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#define IOAPIC_VER 0x01
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#define IOAPIC_ARB 0x02
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#define IOAPIC_REDTBL 0x10
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#define IOAPIC_REDTBL0 IOAPIC_REDTBL
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#define IOAPIC_REDTBL1 (IOAPIC_REDTBL+0x02)
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#define IOAPIC_REDTBL2 (IOAPIC_REDTBL+0x04)
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#define IOAPIC_REDTBL3 (IOAPIC_REDTBL+0x06)
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#define IOAPIC_REDTBL4 (IOAPIC_REDTBL+0x08)
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#define IOAPIC_REDTBL5 (IOAPIC_REDTBL+0x0a)
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#define IOAPIC_REDTBL6 (IOAPIC_REDTBL+0x0c)
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#define IOAPIC_REDTBL7 (IOAPIC_REDTBL+0x0e)
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#define IOAPIC_REDTBL8 (IOAPIC_REDTBL+0x10)
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#define IOAPIC_REDTBL9 (IOAPIC_REDTBL+0x12)
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#define IOAPIC_REDTBL10 (IOAPIC_REDTBL+0x14)
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#define IOAPIC_REDTBL11 (IOAPIC_REDTBL+0x16)
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#define IOAPIC_REDTBL12 (IOAPIC_REDTBL+0x18)
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#define IOAPIC_REDTBL13 (IOAPIC_REDTBL+0x1a)
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#define IOAPIC_REDTBL14 (IOAPIC_REDTBL+0x1c)
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#define IOAPIC_REDTBL15 (IOAPIC_REDTBL+0x1e)
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#define IOAPIC_REDTBL16 (IOAPIC_REDTBL+0x20)
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#define IOAPIC_REDTBL17 (IOAPIC_REDTBL+0x22)
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#define IOAPIC_REDTBL18 (IOAPIC_REDTBL+0x24)
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#define IOAPIC_REDTBL19 (IOAPIC_REDTBL+0x26)
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#define IOAPIC_REDTBL20 (IOAPIC_REDTBL+0x28)
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#define IOAPIC_REDTBL21 (IOAPIC_REDTBL+0x2a)
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#define IOAPIC_REDTBL22 (IOAPIC_REDTBL+0x2c)
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#define IOAPIC_REDTBL23 (IOAPIC_REDTBL+0x2e)
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/* fields in VER */
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#define IOART_VER_VERSION 0x000000ff
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#define IOART_VER_MAXREDIR 0x00ff0000
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#define MAXREDIRSHIFT 16
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/*
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* fields in the IO APIC's redirection table entries
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*/
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#define IOART_DEST APIC_ID_MASK /* broadcast addr: all APICs */
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#define IOART_RESV 0x00fe0000 /* reserved */
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#define IOART_INTMASK 0x00010000 /* R/W: INTerrupt mask */
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# define IOART_INTMCLR 0x00000000 /* clear, allow INTs */
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# define IOART_INTMSET 0x00010000 /* set, inhibit INTs */
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#define IOART_TRGRMOD 0x00008000 /* R/W: trigger mode */
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# define IOART_TRGREDG 0x00000000 /* edge */
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# define IOART_TRGRLVL 0x00008000 /* level */
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#define IOART_REM_IRR 0x00004000 /* RO: remote IRR */
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#define IOART_INTPOL 0x00002000 /* R/W: INT input pin polarity */
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# define IOART_INTAHI 0x00000000 /* active high */
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# define IOART_INTALO 0x00002000 /* active low */
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#define IOART_DELIVS 0x00001000 /* RO: delivery status */
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#define IOART_DESTMOD 0x00000800 /* R/W: destination mode */
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# define IOART_DESTPHY 0x00000000 /* physical */
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# define IOART_DESTLOG 0x00000800 /* logical */
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#define IOART_DELMOD 0x00000700 /* R/W: delivery mode */
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# define IOART_DELFIXED 0x00000000 /* fixed */
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# define IOART_DELLOPRI 0x00000100 /* lowest priority */
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# define IOART_DELSMI 0x00000200 /* System Management INT */
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# define IOART_DELRSV1 0x00000300 /* reserved */
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# define IOART_DELNMI 0x00000400 /* NMI signal */
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# define IOART_DELINIT 0x00000500 /* INIT signal */
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# define IOART_DELRSV2 0x00000600 /* reserved */
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# define IOART_DELEXINT 0x00000700 /* External INTerrupt */
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#define IOART_INTVEC 0x000000ff /* R/W: INTerrupt vector field */
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#endif /* _MACHINE_APIC_H_ */
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