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freebsd-skq/sys/amd64/include/md_var.h

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Add and move declarations to fix all of the warnings from `gcc -Wimplicit' (except in netccitt, netiso and netns) and most of the warnings from `gcc -Wnested-externs'. Fix all the bugs found. There were no serious ones.
1995-03-16 18:17:34 +00:00
/*-
* Copyright (c) 1995 Bruce D. Evans.
* All rights reserved.
*
* 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. Neither the name of the author nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
$Id$ -> $FreeBSD$
1999-08-28 01:08:13 +00:00
* $FreeBSD$
Add and move declarations to fix all of the warnings from `gcc -Wimplicit' (except in netccitt, netiso and netns) and most of the warnings from `gcc -Wnested-externs'. Fix all the bugs found. There were no serious ones.
1995-03-16 18:17:34 +00:00
*/
#ifndef _MACHINE_MD_VAR_H_
#define _MACHINE_MD_VAR_H_
/*
* Miscellaneous machine-dependent declarations.
*/
Remove __P.
2002-03-20 05:48:58 +00:00
extern void (*bcopy_vector)(const void *from, void *to, size_t len);
Define ovbcopy() as a macro which expands to the equivalent bcopy() call, to take care of the KAME IPv6 code which needs ovbcopy() because NetBSD's bcopy() doesn't handle overlap like ours. Remove all implementations of ovbcopy(). Previously, bzero was a function pointer on i386, to save a jmp to bzero_vector. Get rid of this microoptimization as it only confuses things, adds machine-dependent code to an MD header, and doesn't really save all that much. This commit does not add my pagezero() / pagecopy() code.
2003-04-04 17:29:55 +00:00
extern void (*bzero_vector)(void *buf, size_t len);
Fixed some style bugs in the removal of __P(()). The main ones were not removing tabs before "__P((", and not outdenting continuation lines to preserve non-KNF lining up of code with parentheses. Switch to KNF formatting and/or rewrap the whole prototype in some cases.
2002-03-23 15:09:35 +00:00
extern int (*copyin_vector)(const void *udaddr, void *kaddr, size_t len);
extern int (*copyout_vector)(const void *kaddr, void *udaddr, size_t len);
Define ovbcopy() as a macro which expands to the equivalent bcopy() call, to take care of the KAME IPv6 code which needs ovbcopy() because NetBSD's bcopy() doesn't handle overlap like ours. Remove all implementations of ovbcopy(). Previously, bzero was a function pointer on i386, to save a jmp to bzero_vector. Get rid of this microoptimization as it only confuses things, adds machine-dependent code to an MD header, and doesn't really save all that much. This commit does not add my pagezero() / pagecopy() code.
2003-04-04 17:29:55 +00:00
extern long Maxmem;
extern u_int atdevbase; /* offset in virtual memory of ISA io mem */
extern int busdma_swi_pending;
- Add a cpu_exthigh variable to hold the highest extended cpuid value returned from cpuid 0x80000000. - Add a cpu_brand char array to hold the processor name returned by cpuid 0x80000002-0x80000004 on AMD, Intel, Transmeta, and possibly other CPUs. - Use cpuid to set cpu_exthigh and read the processor name if it is present in identify_cpu().
2003-01-08 16:35:59 +00:00
extern u_int cpu_exthigh;
Don't pretend to support ix86's with 16-bit ints by using longs just to ensure 32-bit variables. Doing so mainly bogotified some printf formats. Fixed disorder in md_var.h.
1998-07-11 05:59:35 +00:00
extern u_int cpu_feature;
- Move enable_sse()'s prototype to machine/md_var.h. - Sort definition of cpu_* variables appropriately. - Move cpu_fxsr out of the magic non-BSS set of variables and stick it in the BSS along with hw_instruction_sse (make the latter static as well). Submitted by: bde (partially)
2003-01-22 18:18:45 +00:00
extern u_int cpu_fxsr;
Don't pretend to support ix86's with 16-bit ints by using longs just to ensure 32-bit variables. Doing so mainly bogotified some printf formats. Fixed disorder in md_var.h.
1998-07-11 05:59:35 +00:00
extern u_int cpu_high;
extern u_int cpu_id;
- Move enable_sse()'s prototype to machine/md_var.h. - Sort definition of cpu_* variables appropriately. - Move cpu_fxsr out of the magic non-BSS set of variables and stick it in the BSS along with hw_instruction_sse (make the latter static as well). Submitted by: bde (partially)
2003-01-22 18:18:45 +00:00
extern u_int cpu_procinfo;
Add and move declarations to fix all of the warnings from `gcc -Wimplicit' (except in netccitt, netiso and netns) and most of the warnings from `gcc -Wnested-externs'. Fix all the bugs found. There were no serious ones.
1995-03-16 18:17:34 +00:00
extern char cpu_vendor[];
Don't pretend to support ix86's with 16-bit ints by using longs just to ensure 32-bit variables. Doing so mainly bogotified some printf formats. Fixed disorder in md_var.h.
1998-07-11 05:59:35 +00:00
extern u_int cyrix_did;
The Elan SC520 MMCR is actually 16bit wide, so u_char is inconvenient.
2002-07-31 13:45:44 +00:00
extern uint16_t *elan_mmcr;
Add and move declarations to fix all of the warnings from `gcc -Wimplicit' (except in netccitt, netiso and netns) and most of the warnings from `gcc -Wnested-externs'. Fix all the bugs found. There were no serious ones.
1995-03-16 18:17:34 +00:00
extern char kstack[];
Don't pretend to support ix86's with 16-bit ints by using longs just to ensure 32-bit variables. Doing so mainly bogotified some printf formats. Fixed disorder in md_var.h.
1998-07-11 05:59:35 +00:00
#ifdef PC98
extern int need_pre_dma_flush;
extern int need_post_dma_flush;
#endif
Mega-commit for Linux emulator update.. This has been stress tested under netscape-2.0 for Linux running all the Java stuff. The scrollbars are now working, at least on my machine. (whew! :-) I'm uncomfortable with the size of this commit, but it's too inter-dependant to easily seperate out. The main changes: COMPAT_LINUX is *GONE*. Most of the code has been moved out of the i386 machine dependent section into the linux emulator itself. The int 0x80 syscall code was almost identical to the lcall 7,0 code and a minor tweak allows them to both be used with the same C code. All kernels can now just modload the lkm and it'll DTRT without having to rebuild the kernel first. Like IBCS2, you can statically compile it in with "options LINUX". A pile of new syscalls implemented, including getdents(), llseek(), readv(), writev(), msync(), personality(). The Linux-ELF libraries want to use some of these. linux_select() now obeys Linux semantics, ie: returns the time remaining of the timeout value rather than leaving it the original value. Quite a few bugs removed, including incorrect arguments being used in syscalls.. eg: mixups between passing the sigset as an int, vs passing it as a pointer and doing a copyin(), missing return values, unhandled cases, SIOC* ioctls, etc. The build for the code has changed. i386/conf/files now knows how to build linux_genassym and generate linux_assym.h on the fly. Supporting changes elsewhere in the kernel: The user-mode signal trampoline has moved from the U area to immediately below the top of the stack (below PS_STRINGS). This allows the different binary emulations to have their own signal trampoline code (which gets rid of the hardwired syscall 103 (sigreturn on BSD, syslog on Linux)) and so that the emulator can provide the exact "struct sigcontext *" argument to the program's signal handlers. The sigstack's "ss_flags" now uses SS_DISABLE and SS_ONSTACK flags, which have the same values as the re-used SA_DISABLE and SA_ONSTACK which are intended for sigaction only. This enables the support of a SA_RESETHAND flag to sigaction to implement the gross SYSV and Linux SA_ONESHOT signal semantics where the signal handler is reset when it's triggered. makesyscalls.sh no longer appends the struct sysentvec on the end of the generated init_sysent.c code. It's a lot saner to have it in a seperate file rather than trying to update the structure inside the awk script. :-) At exec time, the dozen bytes or so of signal trampoline code are copied to the top of the user's stack, rather than obtaining the trampoline code the old way by getting a clone of the parent's user area. This allows Linux and native binaries to freely exec each other without getting trampolines mixed up.
1996-03-02 19:38:20 +00:00
extern char sigcode[];
Split 4.x and 5.x signal handling so that we can keep 4.x signal handling clean and functional as 5.x evolves. This allows some of the nasty bandaids in the 5.x codepaths to be unwound. Encapsulate 4.x signal handling under COMPAT_FREEBSD4 (there is an anti-foot-shooting measure in place, 5.x folks need this for a while) and finish encapsulating the older stuff under COMPAT_43. Since the ancient stuff is required on alpha (longjmp(3) passes a 'struct osigcontext *' to the current sigreturn(2), instead of the 'ucontext_t *' that sigreturn is supposed to take), add a compile time check to prevent foot shooting there too. Add uniform COMPAT_43 stubs for ia64/sparc64/powerpc. Tested on: i386, alpha, ia64. Compiled on sparc64 (a few days ago). Approved by: re
2002-10-25 19:10:58 +00:00
extern int szsigcode;
#ifdef COMPAT_FREEBSD4
extern int szfreebsd4_sigcode;
#endif
#ifdef COMPAT_43
extern int szosigcode;
#endif
Commit a partial lazy thread switch mechanism for i386. it isn't as lazy as it could be and can do with some more cleanup. Currently its under options LAZY_SWITCH. What this does is avoid %cr3 reloads for short context switches that do not involve another user process. ie: we can take an interrupt, switch to a kthread and return to the user without explicitly flushing the tlb. However, this isn't as exciting as it could be, the interrupt overhead is still high and too much blocks on Giant still. There are some debug sysctls, for stats and for an on/off switch. The main problem with doing this has been "what if the process that you're running on exits while we're borrowing its address space?" - in this case we use an IPI to give it a kick when we're about to reclaim the pmap. Its not compiled in unless you add the LAZY_SWITCH option. I want to fix a few more things and get some more feedback before turning it on by default. This is NOT a replacement for Bosko's lazy interrupt stuff. This was more meant for the kthread case, while his was for interrupts. Mine helps a little for interrupts, but his helps a lot more. The stats are enabled with options SWTCH_OPTIM_STATS - this has been a pseudo-option for years, I just added a bunch of stuff to it. One non-trivial change was to select a new thread before calling cpu_switch() in the first place. This allows us to catch the silly case of doing a cpu_switch() to the current process. This happens uncomfortably often. This simplifies a bit of the asm code in cpu_switch (no longer have to call choosethread() in the middle). This has been implemented on i386 and (thanks to jake) sparc64. The others will come soon. This is actually seperate to the lazy switch stuff. Glanced at by: jake, jhb
2003-04-02 23:53:30 +00:00
#ifdef SWTCH_OPTIM_STATS
extern int stupid_switch;
extern int swtch_optim_stats;
extern int tlb_flush_count;
extern int lazy_flush_count;
extern int lazy_flush_fixup;
#ifdef SMP
extern int lazy_flush_smpfixup;
extern int lazy_flush_smpipi;
extern int lazy_flush_smpbadcr3;
extern int lazy_flush_smpmiss;
#endif
#endif
#ifdef LAZY_SWITCH
extern int lazy_flush_enable;
#endif
Add and move declarations to fix all of the warnings from `gcc -Wimplicit' (except in netccitt, netiso and netns) and most of the warnings from `gcc -Wnested-externs'. Fix all the bugs found. There were no serious ones.
1995-03-16 18:17:34 +00:00
Remove __P.
2002-03-20 05:48:58 +00:00
typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
KSE Milestone 2 Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
2001-09-12 08:38:13 +00:00
struct thread;
Add and move declarations to fix all of the warnings from `gcc -Wimplicit' (except in netccitt, netiso and netns) and most of the warnings from `gcc -Wnested-externs'. Fix all the bugs found. There were no serious ones.
1995-03-16 18:17:34 +00:00
struct reg;
Add new functions fill_fpregs() and set_fpregs(), like fill_regs() and set_regs() but for the floating point register state. The code is stolen from procfs_machdep.c, and moved out of there into machdep.c. These functions are needed for generating ELF core dumps.
1998-09-14 22:43:40 +00:00
struct fpreg;
Implement support for hardware debug registers on the i386. Submitted by: Brian Dean <brdean@unx.sas.com>
1999-07-09 04:16:00 +00:00
struct dbreg;
Add and move declarations to fix all of the warnings from `gcc -Wimplicit' (except in netccitt, netiso and netns) and most of the warnings from `gcc -Wnested-externs'. Fix all the bugs found. There were no serious ones.
1995-03-16 18:17:34 +00:00
Remove __P.
2002-03-20 05:48:58 +00:00
void bcopyb(const void *from, void *to, size_t len);
void busdma_swi(void);
void cpu_halt(void);
void cpu_reset(void);
void cpu_setregs(void);
void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
void doreti_iret(void) __asm(__STRING(doreti_iret));
void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
void doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
- Move enable_sse()'s prototype to machine/md_var.h. - Sort definition of cpu_* variables appropriately. - Move cpu_fxsr out of the magic non-BSS set of variables and stick it in the BSS along with hw_instruction_sse (make the latter static as well). Submitted by: bde (partially)
2003-01-22 18:18:45 +00:00
void enable_sse(void);
Remove __P.
2002-03-20 05:48:58 +00:00
void fillw(int /*u_short*/ pat, void *base, size_t cnt);
void i486_bzero(void *buf, size_t len);
void i586_bcopy(const void *from, void *to, size_t len);
void i586_bzero(void *buf, size_t len);
int i586_copyin(const void *udaddr, void *kaddr, size_t len);
int i586_copyout(const void *kaddr, void *udaddr, size_t len);
void i686_pagezero(void *addr);
Move a prototype to the least wrong place. Suggested by: bde
2002-08-02 18:45:43 +00:00
void init_AMD_Elan_sc520(void);
Remove __P.
2002-03-20 05:48:58 +00:00
int is_physical_memory(vm_offset_t addr);
- Add vm_paddr_t, a physical address type. This is required for systems where physical addresses larger than virtual addresses, such as i386s with PAE. - Use this to represent physical addresses in the MI vm system and in the i386 pmap code. This also changes the paddr parameter to d_mmap_t. - Fix printf formats to handle physical addresses >4G in the i386 memory detection code, and due to kvtop returning vm_paddr_t instead of u_long. Note that this is a name change only; vm_paddr_t is still the same as vm_offset_t on all currently supported platforms. Sponsored by: DARPA, Network Associates Laboratories Discussed with: re, phk (cdevsw change)
2003-03-25 00:07:06 +00:00
vm_paddr_t kvtop(void *addr);
Fixed some style bugs in the removal of __P(()). The main ones were not removing tabs before "__P((", and not outdenting continuation lines to preserve non-KNF lining up of code with parentheses. Switch to KNF formatting and/or rewrap the whole prototype in some cases.
2002-03-23 15:09:35 +00:00
void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
Remove __P.
2002-03-20 05:48:58 +00:00
void swi_vm(void *);
int user_dbreg_trap(void);
Add and move declarations to fix all of the warnings from `gcc -Wimplicit' (except in netccitt, netiso and netns) and most of the warnings from `gcc -Wnested-externs'. Fix all the bugs found. There were no serious ones.
1995-03-16 18:17:34 +00:00
#endif /* !_MACHINE_MD_VAR_H_ */
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