/*
* Copyright (c) 1988 University of Utah.
- * Copyright (c) 1982, 1990 The Regents of the University of California.
- * All rights reserved.
+ * 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.
*
- * %sccs.include.redist.c%
+ * 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.
*
- * from: Utah $Hdr: cpu.h 1.13 89/06/23$
+ * 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.
*
- * @(#)cpu.h 7.4 (Berkeley) %G%
+ * from: Utah $Hdr: cpu.h 1.16 91/03/25$
+ *
+ * @(#)cpu.h 8.5 (Berkeley) 5/17/95
*/
-#ifdef notyet
-#include "../hp300/psl.h"
-#else
-#include "machine/psl.h"
-#endif
-
/*
* Exported definitions unique to hp300/68k cpu support.
*/
*/
#define COPY_SIGCODE /* copy sigcode above user stack in exec */
-/*
- * function vs. inline configuration;
- * these are defined to get generic functions
- * rather than inline or machine-dependent implementations
- */
-#define NEED_MINMAX /* need {,i,l,ul}{min,max} functions */
-#undef NEED_FFS /* don't need ffs function */
-#undef NEED_BCMP /* don't need bcmp function */
-#undef NEED_STRLEN /* don't need strlen function */
-
-#define cpu_exec(p) /* nothing */
+#define cpu_exec(p) /* nothing */
+#define cpu_swapin(p) /* nothing */
+#define cpu_wait(p) /* nothing */
+#define cpu_setstack(p, ap) (p)->p_md.md_regs[SP] = ap
+#define cpu_set_init_frame(p, fp) (p)->p_md.md_regs = fp
+#define BACKTRACE(p) backtrace(p)
/*
- * Arguments to hardclock, softclock and gatherstats
- * encapsulate the previous machine state in an opaque
- * clockframe; for hp300, use just what the hardware
- * leaves on the stack.
+ * 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).
*/
-typedef struct intrframe {
- int pc;
- int ps;
-} clockframe;
-
-#define CLKF_USERMODE(framep) USERMODE((framep)->ps)
-#define CLKF_BASEPRI(framep) BASEPRI((framep)->ps)
+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
/*
*/
#define need_resched() { want_resched++; aston(); }
+/*
+ * Give a profiling tick to the current process when the user profiling
+ * buffer pages are invalid. On the hp300, 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(); }
/*
- * Give a profiling tick to the current process from the softclock
- * interrupt. On hp300, request an ast to send us through trap(),
- * marking the proc as needing a profiling tick.
+ * Notify the current process (p) that it has a signal pending,
+ * process as soon as possible.
*/
-#define profile_tick(p, framep) { (p)->p_flag |= SOWEUPC; aston(); }
+#define signotify(p) aston()
+#define aston() (astpending++)
+
+int astpending; /* need to trap before returning to user mode */
int want_resched; /* resched() was called */
#define setsoftnet() ssir |= SIR_NET
#define setsoftclock() ssir |= SIR_CLOCK
+/*
+ * CTL_MACHDEP definitions.
+ */
+#define CPU_CONSDEV 1 /* dev_t: console terminal device */
+#define CPU_MAXID 2 /* number of valid machdep ids */
+#define CTL_MACHDEP_NAMES { \
+ { 0, 0 }, \
+ { "console_device", CTLTYPE_STRUCT }, \
+}
/*
* The rest of this should probably be moved to ../hp300/hp300cpu.h,
#define HP_370 4 /* 33Mhz 68030+64K external cache */
#define HP_340 5 /* 16Mhz 68030 */
#define HP_375 6 /* 50Mhz 68030+32K external cache */
+#define HP_380 7 /* 25Mhz 68040 */
+#define HP_433 8 /* 33Mhz 68040 */
/* values for mmutype (assigned for quick testing) */
+#define MMU_68040 -2 /* 68040 on-chip MMU */
#define MMU_68030 -1 /* 68030 on-chip subset of 68851 */
#define MMU_HP 0 /* HP proprietary */
#define MMU_68851 1 /* Motorola 68851 */
#ifdef KERNEL
extern int machineid, mmutype, ectype;
-extern unsigned long DIObase;
+extern char *intiobase, *intiolimit;
/* what is this supposed to do? i.e. how is it different than startrtclock? */
#define enablertclock()
/* physical memory sections */
#define ROMBASE (0x00000000)
-#define IOBASE (0x00200000)
-#define IOTOP (0x01000000)
+#define INTIOBASE (0x00400000)
+#define INTIOTOP (0x00600000)
+#define EXTIOBASE (0x00600000)
+#define EXTIOTOP (0x20000000)
#define MAXADDR (0xFFFFF000)
-/* DIO space stuff */
-#define INTERNALHPIB (0x00478000)
-#define EXTIOBASE (0x00600000)
-#define IOCARDSIZE (0x10000)
-#define IOMAPSIZE (btoc(IOTOP-IOBASE))
-#define IOP(x) ((x) - IOBASE)
-#define IOV(x) (((x) - IOBASE) + DIObase)
-#define UNIOV(x) ((x) - DIObase + IOBASE)
+/*
+ * 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 */
-/* DIO II uncached address space */
+/*
+ * External IO space:
+ *
+ * DIO ranges from select codes 0-63 at physical addresses given by:
+ * 0x600000 + (sc - 32) * 0x10000
+ * DIO cards are addressed in the range 0-31 [0x600000-0x800000) for
+ * their control space and the remaining areas, [0x200000-0x400000) and
+ * [0x800000-0x1000000), are for additional space required by a card;
+ * e.g. a display framebuffer.
+ *
+ * DIO-II ranges from select codes 132-255 at physical addresses given by:
+ * 0x1000000 + (sc - 132) * 0x400000
+ * The address range of DIO-II space is thus [0x1000000-0x20000000).
+ *
+ * DIO/DIO-II space is too large to map in its entirety, instead devices
+ * are mapped into kernel virtual address space allocated from a range
+ * of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''.
+ */
+#define DIOBASE (0x600000)
+#define DIOTOP (0x1000000)
+#define DIOCSIZE (0x10000)
#define DIOIIBASE (0x01000000)
#define DIOIITOP (0x20000000)
#define DIOIICSIZE (0x00400000)
-/* base/offsets for longword read/write (for locore.s) */
-#define MMUBASE IOP(0x5F4000)
+/*
+ * HP MMU
+ */
+#define MMUBASE IIOPOFF(0x5F4000)
#define MMUSSTP 0x0
#define MMUUSTP 0x4
#define MMUTBINVAL 0x8
#define MMU_FAULT (MMU_PTF|MMU_PF|MMU_WPF|MMU_BERR)
#define MMU_ENAB (MMU_UMEN|MMU_SMEN|MMU_IEN|MMU_FPE)
+/*
+ * 68851 and 68030 MMU
+ */
#define PMMU_LVLMASK 0x0007
#define PMMU_INV 0x0400
#define PMMU_WP 0x0800
#define PMMU_SO 0x2000
#define PMMU_LV 0x4000
#define PMMU_BE 0x8000
-
#define PMMU_FAULT (PMMU_WP|PMMU_INV)
+/*
+ * 68040 MMU
+ */
+#define MMU4_RES 0x001
+#define MMU4_TTR 0x002
+#define MMU4_WP 0x004
+#define MMU4_MOD 0x010
+#define MMU4_CMMASK 0x060
+#define MMU4_SUP 0x080
+#define MMU4_U0 0x100
+#define MMU4_U1 0x200
+#define MMU4_GLB 0x400
+#define MMU4_BE 0x800
+
/* 680X0 function codes */
#define FC_USERD 1 /* user data space */
#define FC_USERP 2 /* user program space */
#define CACHE_CLR (CACHE_ON)
#define IC_CLEAR (DC_WA|DC_BE|DC_ENABLE|IC_BE|IC_CLR|IC_ENABLE)
#define DC_CLEAR (DC_WA|DC_BE|DC_CLR|DC_ENABLE|IC_BE|IC_ENABLE)
+
+/* 68040 cache control register */
+#define IC4_ENABLE 0x8000 /* instruction cache enable bit */
+#define DC4_ENABLE 0x80000000 /* data cache enable bit */
+
+#define CACHE4_ON (IC4_ENABLE|DC4_ENABLE)
+#define CACHE4_OFF (0)