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NetBSD/sys/arch/mips/include/locore.h

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Changes for configuring both MIPS1 and MIPS3, from a merge of similar design and code by Jason Thorpe and Jonathan Stone. NOTE: the kernel-stack-switching code and cacheflush() calls in locore.S still use #ifdef MIPS3 and need more work. mips/include/cpu.h: Add CPUISMIPS3 for run-time tests of what CPU architecture level we're running on. mips/include/locore.h: Add declarations of locore cache-size variables for ref/def toolchain. mips/include/mips1_pte.h: mips1 TLB bit definitions. mips/include/mips3_pte.h: mips3 TLB bit definitions. mips/include/pte.h: define accesor macros for TLB bits (e.g., mips_pg_m_bit(), that expand to CPU constants if only one CPU arch is configured, or to inline functions if both MIPS1 and MIPS3 are configured. mips/mips/locore_r2000.S: Use MIPS1_PG_xxx constants inside mips1-specific code. mips/mips/locore_r4000.S: Use MIPS3_PG_xxx constants inside mips3-specific code. mips/mips/locore.S: Use MIPS1_PG_xxx constants inside mips3-specific code. Use MIPS1_PG_xxx constants inside mips1-specific code. (Needs more work!) mips/mips/{pmap.c,vm_machdep.c,trap.c}, pmax/pmax/machdep.c: Use MIPS3_PG_xxx constants inside mips3-specific functions, and MIPS1_PG_XXX inside mips1-specific code. Otherwise, use mips_pg_XXX_bit() macros where they apply, and use "if (CPUISMIPS3) { ... } else {... }" where they don't. mips/mips/mips_machdep.c: Import Michael Hitch's fixes from the pmax locore-init code into mips_vector_init(). pmax/pmax/machdep.c: Use generic mips_vector_init() locore vector-init function.
1997-06-17 03:41:40 +04:00
/* $NetBSD: locore.h,v 1.8 1997/06/16 23:41:43 jonathan Exp $ */
Define the conventional pmax locore entry-point names to be calls through an vector (struct) of function pointers. Add prototype declarations for each vector entry. Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore versions of the relevant functions.
1996-05-19 05:32:56 +04:00
/*
* Copyright 1996 The Board of Trustees of The Leland Stanford
* Junior University. All Rights Reserved.
*
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies. Stanford University
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
/*
* Jump table for MIPS cpu locore functions that are implemented
* differently on different generations, or instruction-level
* archtecture (ISA) level, the Mips family.
* The following functions must be provided for each mips ISA level:
*
*
* MachConfigCache
* MachFlushCache
* MachFlushDCache
* MachFlushICache
* MachForceCacheUpdate
* MachSetPID
* MachTLBFlush
* MachTLBFlushAddr __P()
* MachTLBUpdate (u_int, (pt_entry_t?) u_int);
* MachTLBWriteIndexed
DECstation MIPS3 support: wbflush() is cpu-dependent, need declaration from machine/locore.h. From Toru Nishimura: _FORKBRAINDAMAGE is gone, user process entered through proc_trampoline() [also cpu-dependent].
1997-06-15 21:33:53 +04:00
* wbflush
* proc_trampoline()
Define the conventional pmax locore entry-point names to be calls through an vector (struct) of function pointers. Add prototype declarations for each vector entry. Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore versions of the relevant functions.
1996-05-19 05:32:56 +04:00
*
* We currently provide support for:
*
* r2000 and r3000 (mips ISA-I)
* r4000 and r4400 in 32-bit mode (mips ISA-III?)
*/
#ifndef _MIPS_LOCORE_H
#define _MIPS_LOCORE_H
* Move the declarations of mips locore functions from the pmax tree to the mips tree. * Add declarations of functions used by vm_machdep.c. * Add declarations of functions printed by name in stack tracebacks. * Add declarations of functions used by the model-independnet mips machdep.c code.
1996-05-21 03:38:26 +04:00
/*
* locore service routine for exeception vectors. Used outside locore
* only to print them by name in stack tracebacks
*/
Rename mips CPU-family locore prefixes for case-consistency: mips_r2000_, mips_R2000_ -> mips1_ mips_r4000_, mips_R4000_ -> mips3_ (which are also, for mnemonic reasons, consistent with gcc flag usage, rather than using mipsI_ and mipsIII_).
1996-10-14 01:37:35 +04:00
extern void mips1_ConfigCache __P((void));
extern void mips1_FlushCache __P((void));
extern void mips1_FlushDCache __P((vm_offset_t addr, vm_offset_t len));
extern void mips1_FlushICache __P((vm_offset_t addr, vm_offset_t len));
extern void mips1_ForceCacheUpdate __P((void));
extern void mips1_SetPID __P((int pid));
extern void mips1_TLBFlush __P((void));
extern void mips1_TLBFlushAddr __P( /* XXX Really pte highpart ? */
Define the conventional pmax locore entry-point names to be calls through an vector (struct) of function pointers. Add prototype declarations for each vector entry. Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore versions of the relevant functions.
1996-05-19 05:32:56 +04:00
(vm_offset_t addr));
DECstation MIPS3 support: wbflush() is cpu-dependent, need declaration from machine/locore.h. From Toru Nishimura: _FORKBRAINDAMAGE is gone, user process entered through proc_trampoline() [also cpu-dependent].
1997-06-15 21:33:53 +04:00
extern int mips1_TLBUpdate __P((u_int, /*pt_entry_t*/ u_int));
Rename mips CPU-family locore prefixes for case-consistency: mips_r2000_, mips_R2000_ -> mips1_ mips_r4000_, mips_R4000_ -> mips3_ (which are also, for mnemonic reasons, consistent with gcc flag usage, rather than using mipsI_ and mipsIII_).
1996-10-14 01:37:35 +04:00
extern void mips1_TLBWriteIndexed __P((u_int index, u_int high,
Define the conventional pmax locore entry-point names to be calls through an vector (struct) of function pointers. Add prototype declarations for each vector entry. Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore versions of the relevant functions.
1996-05-19 05:32:56 +04:00
u_int low));
DECstation MIPS3 support: wbflush() is cpu-dependent, need declaration from machine/locore.h. From Toru Nishimura: _FORKBRAINDAMAGE is gone, user process entered through proc_trampoline() [also cpu-dependent].
1997-06-15 21:33:53 +04:00
extern void mips1_wbflush __P((void));
extern void mips1_proc_trampoline __P((void));
Define the conventional pmax locore entry-point names to be calls through an vector (struct) of function pointers. Add prototype declarations for each vector entry. Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore versions of the relevant functions.
1996-05-19 05:32:56 +04:00
Rename mips CPU-family locore prefixes for case-consistency: mips_r2000_, mips_R2000_ -> mips1_ mips_r4000_, mips_R4000_ -> mips3_ (which are also, for mnemonic reasons, consistent with gcc flag usage, rather than using mipsI_ and mipsIII_).
1996-10-14 01:37:35 +04:00
extern void mips3_ConfigCache __P((void));
extern void mips3_FlushCache __P((void));
extern void mips3_FlushDCache __P((vm_offset_t addr, vm_offset_t len));
extern void mips3_FlushICache __P((vm_offset_t addr, vm_offset_t len));
extern void mips3_ForceCacheUpdate __P((void));
Garbage-collect redundant declarations: mips/include/locore.h: Add prototypes for HitFlushDCache() functions. Moe cpu_prid definition here. mips/include/cpu.h: remove cpu_prid definition. pmax/pmax/machdep.c: remove local protoypes of HitFlushDCache() functions. mips/mips/vm_machdep.c, mips/mips/vm_machdep.c:: remove local protoypes of HitFlushDCache() functions.
1997-06-16 13:50:26 +04:00
extern void mips3_HitFlushDCache __P((vm_offset_t, int));
Rename mips CPU-family locore prefixes for case-consistency: mips_r2000_, mips_R2000_ -> mips1_ mips_r4000_, mips_R4000_ -> mips3_ (which are also, for mnemonic reasons, consistent with gcc flag usage, rather than using mipsI_ and mipsIII_).
1996-10-14 01:37:35 +04:00
extern void mips3_SetPID __P((int pid));
extern void mips3_TLBFlush __P((void));
extern void mips3_TLBFlushAddr __P( /* XXX Really pte highpart ? */
Define the conventional pmax locore entry-point names to be calls through an vector (struct) of function pointers. Add prototype declarations for each vector entry. Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore versions of the relevant functions.
1996-05-19 05:32:56 +04:00
(vm_offset_t addr));
DECstation MIPS3 support: wbflush() is cpu-dependent, need declaration from machine/locore.h. From Toru Nishimura: _FORKBRAINDAMAGE is gone, user process entered through proc_trampoline() [also cpu-dependent].
1997-06-15 21:33:53 +04:00
extern int mips3_TLBUpdate __P((u_int, /*pt_entry_t*/ u_int));
extern void mips3_TLBWriteIndexedVPS __P((u_int index, void *tlb));
Rename mips CPU-family locore prefixes for case-consistency: mips_r2000_, mips_R2000_ -> mips1_ mips_r4000_, mips_R4000_ -> mips3_ (which are also, for mnemonic reasons, consistent with gcc flag usage, rather than using mipsI_ and mipsIII_).
1996-10-14 01:37:35 +04:00
extern void mips3_TLBWriteIndexed __P((u_int index, u_int high,
DECstation MIPS3 support: wbflush() is cpu-dependent, need declaration from machine/locore.h. From Toru Nishimura: _FORKBRAINDAMAGE is gone, user process entered through proc_trampoline() [also cpu-dependent].
1997-06-15 21:33:53 +04:00
u_int lo0, u_int lo1));
extern void mips3_wbflush __P((void));
extern void mips3_proc_trampoline __P((void));
Define the conventional pmax locore entry-point names to be calls through an vector (struct) of function pointers. Add prototype declarations for each vector entry. Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore versions of the relevant functions.
1996-05-19 05:32:56 +04:00
Garbage-collect redundant declarations: mips/include/locore.h: Add prototypes for HitFlushDCache() functions. Moe cpu_prid definition here. mips/include/cpu.h: remove cpu_prid definition. pmax/pmax/machdep.c: remove local protoypes of HitFlushDCache() functions. mips/mips/vm_machdep.c, mips/mips/vm_machdep.c:: remove local protoypes of HitFlushDCache() functions.
1997-06-16 13:50:26 +04:00
extern void MachHitFlushDCache __P((caddr_t, int));
extern void mips3_SetWIRED __P((int));
Define the conventional pmax locore entry-point names to be calls through an vector (struct) of function pointers. Add prototype declarations for each vector entry. Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore versions of the relevant functions.
1996-05-19 05:32:56 +04:00
/*
* A vector with an entry for each mips-ISA-level dependent
* locore function, and macros which jump through it.
* XXX the macro names are chosen to be compatible with the old
* Sprite coding-convention names used in 4.4bsd/pmax.
*/
typedef struct {
void (*configCache) __P((void));
void (*flushCache) __P((void));
void (*flushDCache) __P((vm_offset_t addr, vm_offset_t len));
void (*flushICache) __P((vm_offset_t addr, vm_offset_t len));
void (*forceCacheUpdate) __P((void));
void (*setTLBpid) __P((int pid));
void (*tlbFlush) __P((void));
void (*tlbFlushAddr) __P((vm_offset_t)); /* XXX Really pte highpart ? */
DECstation MIPS3 support: wbflush() is cpu-dependent, need declaration from machine/locore.h. From Toru Nishimura: _FORKBRAINDAMAGE is gone, user process entered through proc_trampoline() [also cpu-dependent].
1997-06-15 21:33:53 +04:00
int (*tlbUpdate) __P((u_int highreg, u_int lowreg));
#ifdef MIPS3
void (*tlbWriteIndexed) __P((u_int, u_int, u_int, u_int));
#else
Define the conventional pmax locore entry-point names to be calls through an vector (struct) of function pointers. Add prototype declarations for each vector entry. Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore versions of the relevant functions.
1996-05-19 05:32:56 +04:00
void (*tlbWriteIndexed) __P((u_int, u_int, u_int));
DECstation MIPS3 support: wbflush() is cpu-dependent, need declaration from machine/locore.h. From Toru Nishimura: _FORKBRAINDAMAGE is gone, user process entered through proc_trampoline() [also cpu-dependent].
1997-06-15 21:33:53 +04:00
#endif
void (*wbflush) __P((void));
void (*proc_trampoline) __P((void));
Define the conventional pmax locore entry-point names to be calls through an vector (struct) of function pointers. Add prototype declarations for each vector entry. Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore versions of the relevant functions.
1996-05-19 05:32:56 +04:00
} mips_locore_jumpvec_t;
/*
* The "active" locore-fuction vector, and
*/
extern mips_locore_jumpvec_t mips_locore_jumpvec;
extern mips_locore_jumpvec_t r2000_locore_vec;
extern mips_locore_jumpvec_t r4000_locore_vec;
#define MachConfigCache (*(mips_locore_jumpvec.configCache))
#define MachFlushCache (*(mips_locore_jumpvec.flushCache))
#define MachFlushDCache (*(mips_locore_jumpvec.flushDCache))
#define MachFlushICache (*(mips_locore_jumpvec.flushICache))
#define MachForceCacheUpdate (*(mips_locore_jumpvec.forceCacheUpdate))
#define MachSetPID (*(mips_locore_jumpvec.setTLBpid))
#define MachTLBFlush (*(mips_locore_jumpvec.tlbFlush))
#define MachTLBFlushAddr (*(mips_locore_jumpvec.tlbFlushAddr))
#define MachTLBUpdate (*(mips_locore_jumpvec.tlbUpdate))
#define MachTLBWriteIndexed (*(mips_locore_jumpvec.tlbWriteIndexed))
DECstation MIPS3 support: wbflush() is cpu-dependent, need declaration from machine/locore.h. From Toru Nishimura: _FORKBRAINDAMAGE is gone, user process entered through proc_trampoline() [also cpu-dependent].
1997-06-15 21:33:53 +04:00
#define wbflush (*(mips_locore_jumpvec.wbflush))
#define proc_trampoline (mips_locore_jumpvec.proc_trampoline)
Define the conventional pmax locore entry-point names to be calls through an vector (struct) of function pointers. Add prototype declarations for each vector entry. Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore versions of the relevant functions.
1996-05-19 05:32:56 +04:00
Garbage-collect redundant declarations: mips/include/locore.h: Add prototypes for HitFlushDCache() functions. Moe cpu_prid definition here. mips/include/cpu.h: remove cpu_prid definition. pmax/pmax/machdep.c: remove local protoypes of HitFlushDCache() functions. mips/mips/vm_machdep.c, mips/mips/vm_machdep.c:: remove local protoypes of HitFlushDCache() functions.
1997-06-16 13:50:26 +04:00
/*
* CPU identification, from PRID register.
*/
union cpuprid {
int cpuprid;
struct {
#if BYTE_ORDER == BIG_ENDIAN
u_int pad1:16; /* reserved */
u_int cp_imp:8; /* implementation identifier */
u_int cp_majrev:4; /* major revision identifier */
u_int cp_minrev:4; /* minor revision identifier */
#else
u_int cp_minrev:4; /* minor revision identifier */
u_int cp_majrev:4; /* major revision identifier */
u_int cp_imp:8; /* implementation identifier */
u_int pad1:16; /* reserved */
#endif
} cpu;
};
Yet more merging: * Move declaration of locore communcation variables (CPU family, cache sizes, etc) to mips/include/locore.h. Delete from pmax/include/cpu.h and older versions from pica/include/cpu.h. * Move definitions of CLKF_BASEPRI, CLKF_USERMODE to mips/include/cpu. * Delete duplicate definitions in pica/include/cpu.h, pmax/include/cpu.h.
1997-06-16 10:17:25 +04:00
#ifdef _KERNEL
/*
* Global variables used to communicate CPU type, and parameters
* such as cache size, from locore to higher-level code (e.g., pmap).
*/
Changes for configuring both MIPS1 and MIPS3, from a merge of similar design and code by Jason Thorpe and Jonathan Stone. NOTE: the kernel-stack-switching code and cacheflush() calls in locore.S still use #ifdef MIPS3 and need more work. mips/include/cpu.h: Add CPUISMIPS3 for run-time tests of what CPU architecture level we're running on. mips/include/locore.h: Add declarations of locore cache-size variables for ref/def toolchain. mips/include/mips1_pte.h: mips1 TLB bit definitions. mips/include/mips3_pte.h: mips3 TLB bit definitions. mips/include/pte.h: define accesor macros for TLB bits (e.g., mips_pg_m_bit(), that expand to CPU constants if only one CPU arch is configured, or to inline functions if both MIPS1 and MIPS3 are configured. mips/mips/locore_r2000.S: Use MIPS1_PG_xxx constants inside mips1-specific code. mips/mips/locore_r4000.S: Use MIPS3_PG_xxx constants inside mips3-specific code. mips/mips/locore.S: Use MIPS1_PG_xxx constants inside mips3-specific code. Use MIPS1_PG_xxx constants inside mips1-specific code. (Needs more work!) mips/mips/{pmap.c,vm_machdep.c,trap.c}, pmax/pmax/machdep.c: Use MIPS3_PG_xxx constants inside mips3-specific functions, and MIPS1_PG_XXX inside mips1-specific code. Otherwise, use mips_pg_XXX_bit() macros where they apply, and use "if (CPUISMIPS3) { ... } else {... }" where they don't. mips/mips/mips_machdep.c: Import Michael Hitch's fixes from the pmax locore-init code into mips_vector_init(). pmax/pmax/machdep.c: Use generic mips_vector_init() locore vector-init function.
1997-06-17 03:41:40 +04:00
extern union cpuprid cpu_id;
extern union cpuprid fpu_id;
extern int cpu_arch;
extern u_int machDataCacheSize;
extern u_int machInstCacheSize;
extern u_int machPrimaryDataCacheSize;
extern u_int machPrimaryInstCacheSize;
extern u_int machPrimaryDataCacheLSize;
extern u_int machPrimaryInstCacheLSize;
extern u_int machSecondaryCacheSize;
extern u_int machSecondaryCacheLSize;
extern u_int machCacheAliasMask;
Yet more merging: * Move declaration of locore communcation variables (CPU family, cache sizes, etc) to mips/include/locore.h. Delete from pmax/include/cpu.h and older versions from pica/include/cpu.h. * Move definitions of CLKF_BASEPRI, CLKF_USERMODE to mips/include/cpu. * Delete duplicate definitions in pica/include/cpu.h, pmax/include/cpu.h.
1997-06-16 10:17:25 +04:00
extern struct intr_tab intr_tab[];
#endif
Define the conventional pmax locore entry-point names to be calls through an vector (struct) of function pointers. Add prototype declarations for each vector entry. Add declarations for the r2000 (MIPS-I) and r4000 (MIPS-III) locore versions of the relevant functions.
1996-05-19 05:32:56 +04:00
#endif /* _MIPS_LOCORE_H */