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NetBSD/sys/arch/next68k/include/cpu.h

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/* $NetBSD: cpu.h,v 1.22 2003/01/18 06:09:54 thorpej Exp $ */
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah $Hdr: cpu.h 1.16 91/03/25$
*
* @(#)cpu.h 8.4 (Berkeley) 1/5/94
*/
#ifndef _MACHINE_CPU_H_
#define _MACHINE_CPU_H_
#if defined(_KERNEL_OPT)
#include "opt_lockdebug.h"
#endif
/*
* Exported definitions unique to next68k/68k cpu support.
*/
/*
* Get common m68k definitions.
*/
#include <m68k/cpu.h>
#define M68K_MMU_MOTOROLA
/*
* Get interrupt glue.
*/
#include <machine/intr.h>
#include <sys/sched.h>
struct cpu_info {
struct schedstate_percpu ci_schedstate; /* scheduler state */
#if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
u_long ci_spin_locks; /* # of spin locks held */
u_long ci_simple_locks; /* # of simple locks held */
#endif
};
#ifdef _KERNEL
extern struct cpu_info cpu_info_store;
#define curcpu() (&cpu_info_store)
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define cpu_swapin(p) /* nothing */
#define cpu_wait(p) /* nothing */
#define cpu_swapout(p) /* nothing */
#define cpu_number() 0
void cpu_proc_fork(struct proc *, struct proc *);
/*
* Arguments to hardclock and gatherstats encapsulate the previous
* machine state in an opaque clockframe. One the hp300, we use
* what the hardware pushes on an interrupt (frame format 0).
*/
struct clockframe {
u_short sr; /* sr at time of interrupt */
u_long pc; /* pc at time of interrupt */
u_short fmt:4,
vec:12; /* vector offset (4-word frame) */
} __attribute__((packed));
#define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0)
#define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0)
#define CLKF_PC(framep) ((framep)->pc)
/*
* The clock interrupt handler can determine if it's a nested
* interrupt by checking for interrupt_depth > 1.
* (Remember, the clock interrupt handler itself will cause the
* depth counter to be incremented).
*/
extern volatile unsigned int interrupt_depth;
#define CLKF_INTR(framep) (interrupt_depth > 1)
/*
* Preempt the current process if in interrupt from user mode,
* or after the current trap/syscall if in system mode.
*/
extern int want_resched; /* resched() was called */
#define need_resched(ci) { want_resched = 1; aston(); }
/*
* Give a profiling tick to the current process when the user profiling
* buffer pages are invalid. On the sun3, request an ast to send us
* through trap, marking the proc as needing a profiling tick.
*/
#define need_proftick(p) ((p)->p_flag |= P_OWEUPC, aston())
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) aston()
#define aston() (astpending++)
extern int astpending; /* need to trap before returning to user mode */
extern int want_resched; /* resched() was called */
extern void (*vectab[]) __P((void));
struct frame;
struct fpframe;
struct pcb;
/* locore.s functions */
void m68881_save __P((struct fpframe *));
void m68881_restore __P((struct fpframe *));
int suline __P((caddr_t, caddr_t));
void savectx __P((struct pcb *));
void switch_exit __P((struct lwp *));
void switch_lwp_exit __P((struct lwp *));
void proc_trampoline __P((void));
void loadustp __P((int));
void doboot __P((void)) __attribute__((__noreturn__));
int nmihand __P((void *));
/* sys_machdep.c functions */
int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *));
/* vm_machdep.c functions */
void physaccess __P((caddr_t, caddr_t, int, int));
void physunaccess __P((caddr_t, int));
int kvtop __P((caddr_t));
/* clock.c functions */
void next68k_calibrate_delay __P((void));
#endif /* _KERNEL */
#define NEXT_RAMBASE (0x4000000) /* really depends on slot, but... */
#define NEXT_BANKSIZE (0x1000000) /* Size of a memory bank in physical address */
#if 0
/* @@@ this needs to be fixed to work on 030's */
#define NEXT_SLOT_ID 0x0
#ifdef M68030
#define NEXT_SLOT_ID_BMAP 0x0
#endif /* M68030 */
#endif
#ifdef M68040
#ifdef DISABLE_NEXT_BMAP_CHIP /* @@@ For turbo testing */
#define NEXT_SLOT_ID_BMAP 0x0
#else
#define NEXT_SLOT_ID_BMAP 0x00100000
#endif
#define NEXT_SLOT_ID 0x0
#endif /* M68040 */
/****************************************************************/
/* Eventually, I'd like to move these defines off into
* configure somewhere
* Darrin B Jewell <jewell@mit.edu> Thu Feb 5 03:50:58 1998
*/
/* ROM */
#define NEXT_P_EPROM (NEXT_SLOT_ID+0x00000000)
#define NEXT_P_EPROM_BMAP (NEXT_SLOT_ID+0x01000000)
#define NEXT_P_EPROM_SIZE (128 * 1024)
/* device space */
#define NEXT_P_DEV_SPACE (NEXT_SLOT_ID+0x02000000)
#define NEXT_P_DEV_BMAP (NEXT_SLOT_ID+0x02100000)
#define NEXT_DEV_SPACE_SIZE 0x0001c000
/* DMA control/status (writes MUST be 32-bit) */
#define NEXT_P_SCSI_CSR (NEXT_SLOT_ID+0x02000010)
#define NEXT_P_SOUNDOUT_CSR (NEXT_SLOT_ID+0x02000040)
#define NEXT_P_DISK_CSR (NEXT_SLOT_ID+0x02000050)
#define NEXT_P_SOUNDIN_CSR (NEXT_SLOT_ID+0x02000080)
#define NEXT_P_PRINTER_CSR (NEXT_SLOT_ID+0x02000090)
#define NEXT_P_SCC_CSR (NEXT_SLOT_ID+0x020000c0)
#define NEXT_P_DSP_CSR (NEXT_SLOT_ID+0x020000d0)
#define NEXT_P_ENETX_CSR (NEXT_SLOT_ID+0x02000110)
#define NEXT_P_ENETR_CSR (NEXT_SLOT_ID+0x02000150)
#define NEXT_P_VIDEO_CSR (NEXT_SLOT_ID+0x02000180)
#define NEXT_P_M2R_CSR (NEXT_SLOT_ID+0x020001d0)
#define NEXT_P_R2M_CSR (NEXT_SLOT_ID+0x020001c0)
/* DMA scratch pad (writes MUST be 32-bit) */
#define NEXT_P_VIDEO_SPAD (NEXT_SLOT_ID+0x02004180)
#define NEXT_P_EVENT_SPAD (NEXT_SLOT_ID+0x0200418c)
#define NEXT_P_M2M_SPAD (NEXT_SLOT_ID+0x020041e0)
/* device registers */
#define NEXT_P_ENET (NEXT_SLOT_ID_BMAP+0x02006000)
#define NEXT_P_DSP (NEXT_SLOT_ID_BMAP+0x02008000)
#define NEXT_P_MON (NEXT_SLOT_ID+0x0200e000)
#define NEXT_P_PRINTER (NEXT_SLOT_ID+0x0200f000)
#define NEXT_P_DISK (NEXT_SLOT_ID_BMAP+0x02012000)
#define NEXT_P_SCSI (NEXT_SLOT_ID_BMAP+0x02014000)
#define NEXT_P_FLOPPY (NEXT_SLOT_ID_BMAP+0x02014100)
#define NEXT_P_TIMER (NEXT_SLOT_ID_BMAP+0x02016000)
#define NEXT_P_TIMER_CSR (NEXT_SLOT_ID_BMAP+0x02016004)
#define NEXT_P_SCC (NEXT_SLOT_ID_BMAP+0x02018000)
#define NEXT_P_SCC_CLK (NEXT_SLOT_ID_BMAP+0x02018004)
#define NEXT_P_EVENTC (NEXT_SLOT_ID_BMAP+0x0201a000)
#define NEXT_P_BMAP (NEXT_SLOT_ID+0x020c0000)
/* All COLOR_FB registers are 1 byte wide */
#define NEXT_P_C16_DAC_0 (NEXT_SLOT_ID_BMAP+0x02018100) /* COLOR_FB - RAMDAC */
#define NEXT_P_C16_DAC_1 (NEXT_SLOT_ID_BMAP+0x02018101)
#define NEXT_P_C16_DAC_2 (NEXT_SLOT_ID_BMAP+0x02018102)
#define NEXT_P_C16_DAC_3 (NEXT_SLOT_ID_BMAP+0x02018103)
#define NEXT_P_C16_CMD_REG (NEXT_SLOT_ID_BMAP+0x02018180) /* COLOR_FB - CSR */
/* system control registers */
#define NEXT_P_MEMTIMING (NEXT_SLOT_ID_BMAP+0x02006010)
#define NEXT_P_INTRSTAT (NEXT_SLOT_ID+0x02007000)
#define NEXT_P_INTRSTAT_CON 0x02007000
/* #define NEXT_P_INTRSTAT_0 (NEXT_SLOT_ID+0x02008000) */
#define NEXT_P_INTRMASK (NEXT_SLOT_ID+0x02007800)
#define NEXT_P_INTRMASK_CON 0x02007800
/* #define NEXT_P_INTRMASK_0 (NEXT_SLOT_ID+0x0200a000) */
#define NEXT_P_SCR1 (NEXT_SLOT_ID+0x0200c000)
#define NEXT_P_SCR1_CON 0x0200c000
#define NEXT_P_SID 0x0200c800 /* NOT slot-relative */
#define NEXT_P_SCR2 (NEXT_SLOT_ID+0x0200d000)
#define NEXT_P_SCR2_CON 0x0200d000
#define NEXT_P_RMTINT (NEXT_SLOT_ID+0x0200d800)
#define NEXT_P_BRIGHTNESS (NEXT_SLOT_ID_BMAP+0x02010000)
#define NEXT_P_DRAM_TIMING (NEXT_SLOT_ID_BMAP+0x02018190) /* Warp 9C memory ctlr */
#define NEXT_P_VRAM_TIMING (NEXT_SLOT_ID_BMAP+0x02018198) /* Warp 9C memory ctlr */
/* memory */
#define NEXT_P_MAINMEM (NEXT_SLOT_ID+0x04000000)
#define NEXT_P_MEMSIZE 0x04000000
#define NEXT_P_VIDEOMEM (NEXT_SLOT_ID+0x0b000000)
#define NEXT_P_VIDEOSIZE 0x0003a800
#if 0
#define NEXT_P_C16_VIDEOMEM (NEXT_SLOT_ID+0x06000000) /* COLOR_FB */
#endif
#define NEXT_P_C16_VIDEOMEM (0x2c000000)
#define NEXT_P_C16_VIDEOSIZE 0x001D4000 /* COLOR_FB */
#define NEXT_P_WF4VIDEO (NEXT_SLOT_ID+0x0c000000) /* w A+B-AB function */
#define NEXT_P_WF3VIDEO (NEXT_SLOT_ID+0x0d000000) /* w (1-A)B function */
#define NEXT_P_WF2VIDEO (NEXT_SLOT_ID+0x0e000000) /* w ceil(A+B) function */
#define NEXT_P_WF1VIDEO (NEXT_SLOT_ID+0x0f000000) /* w AB function */
#define NEXT_P_WF4MEM (NEXT_SLOT_ID+0x10000000) /* w A+B-AB function */
#define NEXT_P_WF3MEM (NEXT_SLOT_ID+0x14000000) /* w (1-A)B function */
#define NEXT_P_WF2MEM (NEXT_SLOT_ID+0x18000000) /* w ceil(A+B) function */
#define NEXT_P_WF1MEM (NEXT_SLOT_ID+0x1c000000) /* w AB function */
#define NEXT_NMWF 4 /* # of memory write funcs */
/*
* Interrupt structure.
* BASE and BITS define the origin and length of the bit field in the
* interrupt status/mask register for the particular interrupt level.
* The first component of the interrupt device name indicates the bit
* position in the interrupt status and mask registers; the second is the
* interrupt level; the third is the bit index relative to the start of the
* bit field.
*/
#define NEXT_I(l,i,b) (((b) << 8) | ((l) << 4) | (i))
#define NEXT_I_INDEX(i) ((i) & 0xf)
#define NEXT_I_IPL(i) (((i) >> 4) & 7)
#define NEXT_I_BIT(i) ( 1 << (((i) >> 8) & 0x1f))
#define NEXT_I_IPL7_BASE 0
#define NEXT_I_IPL7_BITS 2
#define NEXT_I_NMI NEXT_I(7,0,31)
#define NEXT_I_PFAIL NEXT_I(7,1,30)
#define NEXT_I_IPL6_BASE 2
#define NEXT_I_IPL6_BITS 12
#define NEXT_I_TIMER NEXT_I(6,0,29)
#define NEXT_I_ENETX_DMA NEXT_I(6,1,28)
#define NEXT_I_ENETR_DMA NEXT_I(6,2,27)
#define NEXT_I_SCSI_DMA NEXT_I(6,3,26)
#define NEXT_I_DISK_DMA NEXT_I(6,4,25)
#define NEXT_I_PRINTER_DMA NEXT_I(6,5,24)
#define NEXT_I_SOUND_OUT_DMA NEXT_I(6,6,23)
#define NEXT_I_SOUND_IN_DMA NEXT_I(6,7,22)
#define NEXT_I_SCC_DMA NEXT_I(6,8,21)
#define NEXT_I_DSP_DMA NEXT_I(6,9,20)
#define NEXT_I_M2R_DMA NEXT_I(6,10,19)
#define NEXT_I_R2M_DMA NEXT_I(6,11,18)
#define NEXT_I_IPL5_BASE 14
#define NEXT_I_IPL5_BITS 3
#define NEXT_I_SCC NEXT_I(5,0,17)
#define NEXT_I_REMOTE NEXT_I(5,1,16)
#define NEXT_I_BUS NEXT_I(5,2,15)
#define NEXT_I_IPL4_BASE 17
#define NEXT_I_IPL4_BITS 1
#define NEXT_I_DSP_4 NEXT_I(4,0,14)
#define NEXT_I_IPL3_BASE 18
#define NEXT_I_IPL3_BITS 12
#define NEXT_I_DISK NEXT_I(3,0,13)
#define NEXT_I_C16_VIDEO NEXT_I(3,0,13) /* COLOR_FB - Steals old ESDI interrupt */
#define NEXT_I_SCSI NEXT_I(3,1,12)
#define NEXT_I_PRINTER NEXT_I(3,2,11)
#define NEXT_I_ENETX NEXT_I(3,3,10)
#define NEXT_I_ENETR NEXT_I(3,4,9)
#define NEXT_I_SOUND_OVRUN NEXT_I(3,5,8)
#define NEXT_I_PHONE NEXT_I(3,6,7)
#define NEXT_I_DSP_3 NEXT_I(3,7,6)
#define NEXT_I_VIDEO NEXT_I(3,8,5)
#define NEXT_I_MONITOR NEXT_I(3,9,4)
#define NEXT_I_KYBD_MOUSE NEXT_I(3,10,3)
#define NEXT_I_POWER NEXT_I(3,11,2)
#define NEXT_I_IPL2_BASE 30
#define NEXT_I_IPL2_BITS 1
#define NEXT_I_SOFTINT1 NEXT_I(2,0,1)
#define NEXT_I_IPL1_BASE 31
#define NEXT_I_IPL1_BITS 1
#define NEXT_I_SOFTINT0 NEXT_I(1,0,0)
/****************************************************************/
/* physical memory sections */
#if 0
#define ROMBASE (0x00000000)
#endif
#define INTIOBASE (0x02000000)
#define INTIOTOP (0x02120000)
#define MONOBASE (0x0b000000)
#define MONOTOP (0x0b03a800)
#define COLORBASE (0x2c000000)
#define COLORTOP (0x2c1D4000)
#define NEXT_INTR_BITS \
"\20\40NMI\37PFAIL\36TIMER\35ENETX_DMA\34ENETR_DMA\33SCSI_DMA\32DISK_DMA\31PRINTER_DMA\30SOUND_OUT_DMA\27SOUND_IN_DMA\26SCC_DMA\25DSP_DMA\24M2R_DMA\23R2M_DMA\22SCC\21REMOTE\20BUS\17DSP_4\16DISK|C16_VIDEO\15SCSI\14PRINTER\13ENETX\12ENETR\11SOUND_OVRUN\10PHONE\07DSP_3\06VIDEO\05MONITOR\04KYBD_MOUSE\03POWER\02SOFTINT1\01SOFTINT0"
/*
* Internal IO space:
*
* Ranges from 0x400000 to 0x600000 (IIOMAPSIZE).
*
* Internal IO space is mapped in the kernel from ``intiobase'' to
* ``intiolimit'' (defined in locore.s). Since it is always mapped,
* conversion between physical and kernel virtual addresses is easy.
*/
#define ISIIOVA(va) \
((char *)(va) >= intiobase && (char *)(va) < intiolimit)
#define IIOV(pa) ((int)(pa)-INTIOBASE+(int)intiobase)
#define IIOP(va) ((int)(va)-(int)intiobase+INTIOBASE)
#define IIOPOFF(pa) ((int)(pa)-INTIOBASE)
#define IIOMAPSIZE btoc(INTIOTOP-INTIOBASE) /* 2mb */
/* mono fb space */
#define ISMONOVA(va) \
((char *)(va) >= monobase && (char *)(va) < monolimit)
#define MONOV(pa) ((int)(pa)-MONOBASE+(int)monobase)
#define MONOP(va) ((int)(va)-(int)monobase+MONOBASE)
#define MONOPOFF(pa) ((int)(pa)-MONOBASE)
#define MONOMAPSIZE btoc(MONOTOP-MONOBASE) /* who cares */
/* color fb space */
#define ISCOLORVA(va) \
((char *)(va) >= colorbase && (char *)(va) < colorlimit)
#define COLORV(pa) ((int)(pa)-COLORBASE+(int)colorbase)
#define COLORP(va) ((int)(va)-(int)colorbase+COLORBASE)
#define COLORPOFF(pa) ((int)(pa)-COLORBASE)
#define COLORMAPSIZE btoc(COLORTOP-COLORBASE) /* who cares */
#endif /* _MACHINE_CPU_H_ */
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