379 lines
13 KiB
C
379 lines
13 KiB
C
/* $NetBSD: cpu.h,v 1.4 1998/08/31 21:21:10 dbj 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 _CPU_MACHINE_
|
|
#define _CPU_MACHINE_
|
|
|
|
/*
|
|
* 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>
|
|
|
|
/*
|
|
* definitions of cpu-dependent requirements
|
|
* referenced in generic code
|
|
*/
|
|
#define cpu_swapin(p) /* nothing */
|
|
#define cpu_wait(p) /* nothing */
|
|
#define cpu_swapout(p) /* nothing */
|
|
|
|
/*
|
|
* 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 vo; /* vector offset (4-word frame) */
|
|
};
|
|
|
|
#define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0)
|
|
#define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0)
|
|
#define CLKF_PC(framep) ((framep)->pc)
|
|
#if 0
|
|
/* We would like to do it this way... */
|
|
#define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0)
|
|
#else
|
|
/* but until we start using PSL_M, we have to do this instead */
|
|
#define CLKF_INTR(framep) (0) /* XXX */
|
|
#endif
|
|
|
|
/*
|
|
* 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() { 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++)
|
|
|
|
int astpending; /* need to trap before returning to user mode */
|
|
int want_resched; /* resched() was called */
|
|
|
|
#ifdef _KERNEL
|
|
extern volatile char *intiobase;
|
|
extern volatile char *intiolimit;
|
|
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 *));
|
|
#if 0 /* it's already in m68k/m68k.h */
|
|
u_long getdfc __P((void));
|
|
u_long getsfc __P((void));
|
|
#endif
|
|
void DCIA __P((void));
|
|
void DCIS __P((void));
|
|
void DCIU __P((void));
|
|
void ICIA __P((void));
|
|
void ICPA __P((void));
|
|
void PCIA __P((void));
|
|
void TBIA __P((void));
|
|
void TBIS __P((vm_offset_t));
|
|
void TBIAS __P((void));
|
|
void TBIAU __P((void));
|
|
#if defined(M68040)
|
|
void DCFA __P((void));
|
|
void DCFP __P((vm_offset_t));
|
|
void DCFL __P((vm_offset_t));
|
|
void DCPL __P((vm_offset_t));
|
|
void DCPP __P((vm_offset_t));
|
|
void ICPL __P((vm_offset_t));
|
|
void ICPP __P((vm_offset_t));
|
|
#endif
|
|
int suline __P((caddr_t, caddr_t));
|
|
void savectx __P((struct pcb *));
|
|
void switch_exit __P((struct proc *));
|
|
void proc_trampoline __P((void));
|
|
void loadustp __P((int));
|
|
|
|
void doboot __P((void)) __attribute__((__noreturn__));
|
|
|
|
/* 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_INTRMASK (NEXT_SLOT_ID+0x02007800)
|
|
#define NEXT_P_INTRMASK_CON 0x02007800
|
|
#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
|
|
#define NEXT_P_C16_VIDEOMEM (NEXT_SLOT_ID+0x06000000) /* COLOR_FB */
|
|
#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 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 */
|
|
|
|
#endif /* _CPU_MACHINE_ */
|