BSD 4_4_Lite2 release

[unix-history] / usr / src / sys / hp300 / include / cpu.h

diff --git a/usr/src/sys/hp300/include/cpu.h b/usr/src/sys/hp300/include/cpu.h
index 0ad4009..08cce27 100644 (file)
--- a/usr/src/sys/hp300/include/cpu.h
+++ b/usr/src/sys/hp300/include/cpu.h
@@ -1,17 +1,43 @@
 /*
  * Copyright (c) 1988 University of Utah.
 /*
  * 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.
  *
  *
  * 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       7.5 (Berkeley) %G%
+ * from: Utah $Hdr: cpu.h 1.16 91/03/25$
+ *
+ *     @(#)cpu.h       8.5 (Berkeley) 5/17/95

  */
 
 /*
  */
 
 /*


@@ -24,32 +50,34 @@
  */
 #define        COPY_SIGCODE            /* copy sigcode above user stack in exec */
 
  */
 #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)   (((framep)->ps & PSL_S) == 0)
-#define        CLKF_BASEPRI(framep)    (((framep)->ps & PSL_IPL7) == 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)
 #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

 
 
 /*
 
 
 /*


@@ -59,11 +87,11 @@ typedef struct intrframe {
 #define        need_resched()  { want_resched++; aston(); }
 
 /*
 #define        need_resched()  { want_resched++; 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.
+ * 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        profile_tick(p, framep) { (p)->p_flag |= SOWEUPC; aston(); }
+#define        need_proftick(p)        { (p)->p_flag |= P_OWEUPC; aston(); }

 
 /*
  * Notify the current process (p) that it has a signal pending,
 
 /*
  * Notify the current process (p) that it has a signal pending,


@@ -89,7 +117,16 @@ extern unsigned char ssir;
 #define setsoftnet()   ssir |= SIR_NET
 #define setsoftclock() ssir |= SIR_CLOCK
 
 #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,
 
 /*
  * The rest of this should probably be moved to ../hp300/hp300cpu.h,


@@ -104,8 +141,11 @@ extern unsigned char ssir;
 #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_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) */
 
 /* 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 */
 #define        MMU_68030       -1      /* 68030 on-chip subset of 68851 */
 #define        MMU_HP          0       /* HP proprietary */
 #define        MMU_68851       1       /* Motorola 68851 */


@@ -124,7 +164,7 @@ extern unsigned char ssir;
 
 #ifdef KERNEL
 extern int machineid, mmutype, ectype;
 
 #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()
 
 /* what is this supposed to do? i.e. how is it different than startrtclock? */
 #define        enablertclock()


@@ -133,26 +173,57 @@ extern    unsigned long DIObase;
 
 /* physical memory sections */
 #define        ROMBASE         (0x00000000)
 
 /* 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)
 
 #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)
 
 #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        MMUSSTP         0x0
 #define        MMUUSTP         0x4
 #define        MMUTBINVAL      0x8


@@ -172,6 +243,9 @@ extern      unsigned long DIObase;
 #define        MMU_FAULT       (MMU_PTF|MMU_PF|MMU_WPF|MMU_BERR)
 #define        MMU_ENAB        (MMU_UMEN|MMU_SMEN|MMU_IEN|MMU_FPE)
 
 #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_LVLMASK    0x0007
 #define        PMMU_INV        0x0400
 #define        PMMU_WP         0x0800


@@ -179,9 +253,22 @@ extern     unsigned long DIObase;
 #define        PMMU_SO         0x2000
 #define        PMMU_LV         0x4000
 #define        PMMU_BE         0x8000
 #define        PMMU_SO         0x2000
 #define        PMMU_LV         0x4000
 #define        PMMU_BE         0x8000

-

 #define        PMMU_FAULT      (PMMU_WP|PMMU_INV)
 
 #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 */
 /* 680X0 function codes */
 #define        FC_USERD        1       /* user data space */
 #define        FC_USERP        2       /* user program space */


@@ -210,3 +297,10 @@ extern     unsigned long DIObase;
 #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)
 #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)