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freebsd-skq/sys/i386/include/pcb.h

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Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
/*-
sys: further adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
2017-11-20 19:43:44 +00:00
* SPDX-License-Identifier: BSD-3-Clause
*
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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.
Renumber copyright clause 4 Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00
* 3. Neither the name of the University nor the names of its contributors
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
* 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.
*
All: Remove patch kit headers, and add $Id$ This is mostly to align some more code with NetBSD. cpu.h: Remove the old function vs. include configuration stuff that was ifdefed out when we went to inline functions. Remove the define of resettodr that made it a nop, there is already a function that makes it a nop, no need to #define one. Remove the #defines of processor types, they are now defined in cputypes.h, #include that file. Add struct cpu_nameclass for support of cpu types. frame.h: include sys/signal.h, it will be needed in the future. put the sigframe structure here that was in machdep.c pcb.h: Add multiple inclusion protection. Add pcb_ldt and pcb_ldt_len to pcb structure, this is for the user mode ldt.
1993-10-08 20:51:00 +00:00
* from: @(#)pcb.h 5.10 (Berkeley) 5/12/91
$Id$ -> $FreeBSD$
1999-08-28 01:08:13 +00:00
* $FreeBSD$
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
*/
All: Remove patch kit headers, and add $Id$ This is mostly to align some more code with NetBSD. cpu.h: Remove the old function vs. include configuration stuff that was ifdefed out when we went to inline functions. Remove the define of resettodr that made it a nop, there is already a function that makes it a nop, no need to #define one. Remove the #defines of processor types, they are now defined in cputypes.h, #include that file. Add struct cpu_nameclass for support of cpu types. frame.h: include sys/signal.h, it will be needed in the future. put the sigframe structure here that was in machdep.c pcb.h: Add multiple inclusion protection. Add pcb_ldt and pcb_ldt_len to pcb structure, this is for the user mode ldt.
1993-10-08 20:51:00 +00:00
#ifndef _I386_PCB_H_
#define _I386_PCB_H_
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
/*
* Intel 386 process control block
*/
It seems I introduced a new prerequisite for <machine/pcb.h> on i386, which is included from <sys/user.h>. Add a bandaid for userland.
2005-04-14 04:13:27 +00:00
#ifndef _KERNEL
#include <machine/segments.h>
#endif
Change all #includes to follow the current Berkeley style. Some of these ``changes'' are actually not changes at all, but CVS sometimes has trouble telling the difference. This also includes support for second-directory compiles. This is not quite complete yet, as `config' doesn't yet do the right thing. You can still make it work trivially, however, by doing the following: rm /sys/compile mkdir /usr/obj/sys/compile ln -s M-. /sys/compile cd /sys/i386/conf config MYKERNEL cd ../../compile/MYKERNEL ln -s /sys @ rm machine ln -s @/i386/include machine make depend make
1994-08-13 03:50:34 +00:00
#include <machine/npx.h>
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
Export various helper variables describing the layout and size of certain kernel structures for use by debuggers. This mostly aids in examining cores from a kernel without debug symbols as a debugger can infer these values if debug symbols are available. One set of variables describes the layout of 'struct linker_file' to walk the list of loaded kernel modules. A second set of variables describes the layout of 'struct proc' and 'struct thread' to walk the list of processes in the kernel and the threads in each process. The 'pcb_size' variable is used to index into the stoppcbs[] array. The 'vm_maxuser_address' is used to distinguish kernel virtual addresses from user addresses. This doesn't have to be perfect, and 'vm_maxuser_address' is a cheap and simple way to differentiate kernel pointers from simple values like TIDs and PIDs. While here, annotate the fields in struct pcb used by kgdb on amd64 and i386 to note that their ABI should be preserved. Annotations for other platforms will be added in the future. Reviewed by: kib MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D3773
2015-11-12 22:00:59 +00:00
/*
* NB: The fields marked with (*) are used by kernel debuggers. Their
* ABI should be preserved.
*/
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
struct pcb {
Export various helper variables describing the layout and size of certain kernel structures for use by debuggers. This mostly aids in examining cores from a kernel without debug symbols as a debugger can infer these values if debug symbols are available. One set of variables describes the layout of 'struct linker_file' to walk the list of loaded kernel modules. A second set of variables describes the layout of 'struct proc' and 'struct thread' to walk the list of processes in the kernel and the threads in each process. The 'pcb_size' variable is used to index into the stoppcbs[] array. The 'vm_maxuser_address' is used to distinguish kernel virtual addresses from user addresses. This doesn't have to be perfect, and 'vm_maxuser_address' is a cheap and simple way to differentiate kernel pointers from simple values like TIDs and PIDs. While here, annotate the fields in struct pcb used by kgdb on amd64 and i386 to note that their ABI should be preserved. Annotations for other platforms will be added in the future. Reviewed by: kib MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D3773
2015-11-12 22:00:59 +00:00
int pcb_edi; /* (*) */
int pcb_esi; /* (*) */
int pcb_ebp; /* (*) */
int pcb_esp; /* (*) */
int pcb_ebx; /* (*) */
int pcb_eip; /* (*) */
MFamd64: Add support for extended FPU states on i386. This includes support for AVX on i386. - Similar to amd64, move the FPU save area out of the PCB and instead store saved FPU state in a variable-sized buffer after the PCB on the stack. - To support the variable PCB location, alter the locore code to only use the bottom-most page of proc0stack for init386(). init386() returns the correct stack pointer to locore which adjusts the stack for thread0 before calling mi_startup(). - Don't bother setting cr3 in thread0's pcb in locore before calling init386(). It wasn't used (init386() overwrote it at the end) and it doesn't work with the variable-sized FPU save area. - Remove the new-bus attachment from npx. This was only ever useful for external co-processors using IRQ13, but those have not been supported for several years. npxinit() is now called much earlier during boot (init386()) similar to amd64. - Implement PT_{GET,SET}XSTATE and I386_GET_XFPUSTATE. - npxsave() is now only called from context switch contexts so it can use XSAVEOPT. Differential Revision: https://reviews.freebsd.org/D1058 Reviewed by: kib Tested on: FreeBSD/i386 VM under bhyve on Intel i5-2520
2014-11-02 22:58:30 +00:00
struct segment_descriptor pcb_fsd;
struct segment_descriptor pcb_gsd;
int pcb_ds;
int pcb_es;
int pcb_fs;
int pcb_gs;
int pcb_ss;
int pcb_cr0;
int pcb_cr2;
int pcb_cr3;
int pcb_cr4;
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
int pcb_dr0;
int pcb_dr1;
int pcb_dr2;
int pcb_dr3;
int pcb_dr6;
int pcb_dr7;
MFamd64: Add support for extended FPU states on i386. This includes support for AVX on i386. - Similar to amd64, move the FPU save area out of the PCB and instead store saved FPU state in a variable-sized buffer after the PCB on the stack. - To support the variable PCB location, alter the locore code to only use the bottom-most page of proc0stack for init386(). init386() returns the correct stack pointer to locore which adjusts the stack for thread0 before calling mi_startup(). - Don't bother setting cr3 in thread0's pcb in locore before calling init386(). It wasn't used (init386() overwrote it at the end) and it doesn't work with the variable-sized FPU save area. - Remove the new-bus attachment from npx. This was only ever useful for external co-processors using IRQ13, but those have not been supported for several years. npxinit() is now called much earlier during boot (init386()) similar to amd64. - Implement PT_{GET,SET}XSTATE and I386_GET_XFPUSTATE. - npxsave() is now only called from context switch contexts so it can use XSAVEOPT. Differential Revision: https://reviews.freebsd.org/D1058 Reviewed by: kib Tested on: FreeBSD/i386 VM under bhyve on Intel i5-2520
2014-11-02 22:58:30 +00:00
struct region_descriptor pcb_gdt;
struct region_descriptor pcb_idt;
uint16_t pcb_ldt;
uint16_t pcb_tr;
Changed the type of pcb_flags from u_char to u_int and adjusted things. This removes the only atomic operation on a char type in the entire kernel.
2002-01-17 17:49:23 +00:00
u_int pcb_flags;
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
#define PCB_DBREGS 0x02 /* process using debug registers */
Add kernel support needed for the KSE-aware libpthread: - Maintain fpu state across signals. - Save and restore FPU state properly in ucontext_t's. Reviewed by: deischen, julian Approved by: -arch
2002-09-16 19:25:41 +00:00
#define PCB_NPXINITDONE 0x08 /* fpu state is initialized */
1.Fix smp race between kernel vm86 BIOS calling and userland vm86 mode code, remove global variable in_vm86call, set vm86 calling flag in PCB flags. 2.Fix vm86 BIOS calling preempted problem by changing vm86_lock mutex type from MTX_DEF to MTX_SPIN. vm86pcb is not remembered in thread struct, when the thread calling vm86 BIOS is preempted by interrupt thread, and later switching back to the thread would cause incorrect context be loaded into CPU registers, this leads to kernel crash.
2002-11-07 01:34:23 +00:00
#define PCB_VM86CALL 0x10 /* in vm86 call */
Introduce the x86 kernel interfaces to allow kernel code to use FPU/SSE hardware. Caller should provide a save area that is chained into the stack of the areas; pcb save_area for usermode FPU state is on top. The pcb now contains a pointer to the current FPU saved area, used during FPUDNA handling and context switches. There is also a facility to allow the kernel thread to use pcb save_area. Change the dreaded warnings "npxdna in kernel mode!" into the panics when FPU usage is not registered. KPI discussed with: fabient Tested by: pho, fabient Hardware provided by: Sentex Communications MFC after: 1 month
2010-06-05 15:59:59 +00:00
#define PCB_NPXUSERINITDONE 0x20 /* user fpu state is initialized */
#define PCB_KERNNPX 0x40 /* kernel uses npx */
1.Fix smp race between kernel vm86 BIOS calling and userland vm86 mode code, remove global variable in_vm86call, set vm86 calling flag in PCB flags. 2.Fix vm86 BIOS calling preempted problem by changing vm86_lock mutex type from MTX_DEF to MTX_SPIN. vm86pcb is not remembered in thread struct, when the thread calling vm86 BIOS is preempted by interrupt thread, and later switching back to the thread would cause incorrect context be loaded into CPU registers, this leads to kernel crash.
2002-11-07 01:34:23 +00:00
MFamd64: Add support for extended FPU states on i386. This includes support for AVX on i386. - Similar to amd64, move the FPU save area out of the PCB and instead store saved FPU state in a variable-sized buffer after the PCB on the stack. - To support the variable PCB location, alter the locore code to only use the bottom-most page of proc0stack for init386(). init386() returns the correct stack pointer to locore which adjusts the stack for thread0 before calling mi_startup(). - Don't bother setting cr3 in thread0's pcb in locore before calling init386(). It wasn't used (init386() overwrote it at the end) and it doesn't work with the variable-sized FPU save area. - Remove the new-bus attachment from npx. This was only ever useful for external co-processors using IRQ13, but those have not been supported for several years. npxinit() is now called much earlier during boot (init386()) similar to amd64. - Implement PT_{GET,SET}XSTATE and I386_GET_XFPUSTATE. - npxsave() is now only called from context switch contexts so it can use XSAVEOPT. Differential Revision: https://reviews.freebsd.org/D1058 Reviewed by: kib Tested on: FreeBSD/i386 VM under bhyve on Intel i5-2520
2014-11-02 22:58:30 +00:00
uint16_t pcb_initial_npxcw;
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
caddr_t pcb_onfault; /* copyin/out fault recovery */
VM86 kernel support. Work done by BSDI, Jonathan Lemon <jlemon@americantv.com>, Mike Smith <msmith@gsoft.com.au>, Sean Eric Fagan <sef@kithrup.com>, and probably alot of others. Submitted by: Jnathan Lemon <jlemon@americantv.com>
1997-08-09 00:04:06 +00:00
struct pcb_ext *pcb_ext; /* optional pcb extension */
Remove all kernel uses of pcb_psl, but keep in in the struct to preserve the ABI and API for applications. It was removed in the port to amd64, but was remained as garbage giving a micro-pessimization and spurious single-step traps on i386. pcb_psl was intended to be used just to do a context switch of PSL_I, but this context switch was null in most or all versions, and mis-switching of PSL_T was done instead. Some history: - in 386BSD-0.0, cpu_switch() ran at splhigh() and splhigh() did too much interrupt disabling, so interrupts were hard-disabled across cpu_switch() and too many other places - in 386BSD-0.0-patchkit through FreeBSD-4 and FreeBSD-5 before SMPng, splhigh() did soft interrupt masking, and cpu_switch() was excessively cautious and did a cli at the start and a sti at the end to hard-disable interrupts across the switch - SMPng replaced the spl's and cli's by spinlocks (just sched_lock?), so interrupts were hard-disabled across cpu_switch() and too many other places again - initial attempts to fix this intended to restore some soft interrupt disabling, but to support variations in this cpu_switch() used pushfl/popfl into pcb_psl to avoid hard-coding the assumption that the initial and final states have PSL_I enabled. But the version with soft interrupt disabling wasn't used for long, or was never committed, (except I always used my different version of it for UP) so the pushfl/popl and pcb_psl to hold them have been doing less than nothing for about 14 years.
2016-09-17 14:00:52 +00:00
int pcb_waspsl; /* unused padding for ABI and API compat */
Fix an evil bug that appeared in September 2003. VM86 bios calls use two of the __pcb_spare longs. Except that fields were changed and one of the spare values was used and the __pcb_spare field was reduced from two to one long. Now VM86 bios calls can trash the first 4 bytes of the next page following the kernel stack/pcb. This Is Bad(TM). This bug has been present in 5.2-release and onwards, and is still in RELENG_5. Instead of tempting fate and trying to use "spare" fields, explicitly reserve them.
2005-04-13 18:13:40 +00:00
u_long pcb_vm86[2]; /* vm86bios scratch space */
Introduce the x86 kernel interfaces to allow kernel code to use FPU/SSE hardware. Caller should provide a save area that is chained into the stack of the areas; pcb save_area for usermode FPU state is on top. The pcb now contains a pointer to the current FPU saved area, used during FPUDNA handling and context switches. There is also a facility to allow the kernel thread to use pcb save_area. Change the dreaded warnings "npxdna in kernel mode!" into the panics when FPU usage is not registered. KPI discussed with: fabient Tested by: pho, fabient Hardware provided by: Sentex Communications MFC after: 1 month
2010-06-05 15:59:59 +00:00
union savefpu *pcb_save;
Add SMP/i386 suspend/resume support. Most part is merged from amd64. - i386/acpica/acpi_wakecode.S Replaced with amd64 code (from realmode to paging enabling code). - i386/acpica/acpi_wakeup.c Replaced with amd64 code (except for wakeup_pagetables stuff). - i386/include/pcb.h - i386/i386/genassym.c Added PCB new members (CR0, CR2, CR4, DS, ED, FS, SS, GDT, IDT, LDT and TR) needed for suspend/resume, not for context switch. - i386/i386/swtch.s Added suspendctx() and resumectx(). Note that savectx() was not changed and used for suspending (while amd64 code uses it). BSP and AP execute the same sequence, suspendctx(), acpi_wakecode() and resumectx() for suspend/resume (in case of UP system also). - i386/i386/apic_vector.s Added cpususpend(). - i386/i386/mp_machdep.c - i386/include/smp.h Added cpususpend_handler(). - i386/include/apicvar.h - kern/subr_smp.c - sys/smp.h Added IPI_SUSPEND and suspend_cpus(). - i386/i386/initcpu.c - i386/i386/machdep.c - i386/include/md_var.h - pc98/pc98/machdep.c Moved initializecpu() declarations to md_var.h. MFC after: 3 days
2012-05-18 18:55:58 +00:00
MFamd64: Add support for extended FPU states on i386. This includes support for AVX on i386. - Similar to amd64, move the FPU save area out of the PCB and instead store saved FPU state in a variable-sized buffer after the PCB on the stack. - To support the variable PCB location, alter the locore code to only use the bottom-most page of proc0stack for init386(). init386() returns the correct stack pointer to locore which adjusts the stack for thread0 before calling mi_startup(). - Don't bother setting cr3 in thread0's pcb in locore before calling init386(). It wasn't used (init386() overwrote it at the end) and it doesn't work with the variable-sized FPU save area. - Remove the new-bus attachment from npx. This was only ever useful for external co-processors using IRQ13, but those have not been supported for several years. npxinit() is now called much earlier during boot (init386()) similar to amd64. - Implement PT_{GET,SET}XSTATE and I386_GET_XFPUSTATE. - npxsave() is now only called from context switch contexts so it can use XSAVEOPT. Differential Revision: https://reviews.freebsd.org/D1058 Reviewed by: kib Tested on: FreeBSD/i386 VM under bhyve on Intel i5-2520
2014-11-02 22:58:30 +00:00
uint32_t pcb_pad[10];
Create a separate structure for per-CPU state saved across suspend and resume that is a superset of a pcb. Move the FPU state out of the pcb and into this new structure. As part of this, move the FPU resume code on amd64 into a C function. This allows resumectx() to still operate only on a pcb and more closely mirrors the i386 code. Reviewed by: kib (earlier version)
2014-09-06 15:23:28 +00:00
};
Save and restore FPU state across suspend and resume. In earlier revisions of this patch, resumectx() called npxresume() directly, but that doesn't work because resumectx() runs with a non-standard %cs selector. Instead, all of the FPU suspend/resume handling is done in C. MFC after: 1 week
2014-08-30 17:48:38 +00:00
MFamd64: Add support for extended FPU states on i386. This includes support for AVX on i386. - Similar to amd64, move the FPU save area out of the PCB and instead store saved FPU state in a variable-sized buffer after the PCB on the stack. - To support the variable PCB location, alter the locore code to only use the bottom-most page of proc0stack for init386(). init386() returns the correct stack pointer to locore which adjusts the stack for thread0 before calling mi_startup(). - Don't bother setting cr3 in thread0's pcb in locore before calling init386(). It wasn't used (init386() overwrote it at the end) and it doesn't work with the variable-sized FPU save area. - Remove the new-bus attachment from npx. This was only ever useful for external co-processors using IRQ13, but those have not been supported for several years. npxinit() is now called much earlier during boot (init386()) similar to amd64. - Implement PT_{GET,SET}XSTATE and I386_GET_XFPUSTATE. - npxsave() is now only called from context switch contexts so it can use XSAVEOPT. Differential Revision: https://reviews.freebsd.org/D1058 Reviewed by: kib Tested on: FreeBSD/i386 VM under bhyve on Intel i5-2520
2014-11-02 22:58:30 +00:00
/* Per-CPU state saved during suspend and resume. */
Create a separate structure for per-CPU state saved across suspend and resume that is a superset of a pcb. Move the FPU state out of the pcb and into this new structure. As part of this, move the FPU resume code on amd64 into a C function. This allows resumectx() to still operate only on a pcb and more closely mirrors the i386 code. Reviewed by: kib (earlier version)
2014-09-06 15:23:28 +00:00
struct susppcb {
struct pcb sp_pcb;
MFamd64: Add support for extended FPU states on i386. This includes support for AVX on i386. - Similar to amd64, move the FPU save area out of the PCB and instead store saved FPU state in a variable-sized buffer after the PCB on the stack. - To support the variable PCB location, alter the locore code to only use the bottom-most page of proc0stack for init386(). init386() returns the correct stack pointer to locore which adjusts the stack for thread0 before calling mi_startup(). - Don't bother setting cr3 in thread0's pcb in locore before calling init386(). It wasn't used (init386() overwrote it at the end) and it doesn't work with the variable-sized FPU save area. - Remove the new-bus attachment from npx. This was only ever useful for external co-processors using IRQ13, but those have not been supported for several years. npxinit() is now called much earlier during boot (init386()) similar to amd64. - Implement PT_{GET,SET}XSTATE and I386_GET_XFPUSTATE. - npxsave() is now only called from context switch contexts so it can use XSAVEOPT. Differential Revision: https://reviews.freebsd.org/D1058 Reviewed by: kib Tested on: FreeBSD/i386 VM under bhyve on Intel i5-2520
2014-11-02 22:58:30 +00:00
/* fpu context for suspend/resume */
void *sp_fpususpend;
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
};
Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
1999-12-29 04:46:21 +00:00
#ifdef _KERNEL
Implement makectx(). The makectx() function is used by KDB to create a PCB from a trapframe for purposes of unwinding the stack. The PCB is used as the thread context and all but the thread that entered the debugger has a valid PCB. This function can also be used to create a context for the threads running on the CPUs that have been stopped when the debugger got entered. This however is not done at the time of this commit.
2004-07-10 19:56:00 +00:00
struct trapframe;
void makectx(struct trapframe *, struct pcb *);
Add x86/acpica/acpi_wakeup.c for amd64 and i386. Difference of suspend/resume procedures are minimized among them. common: - Add global cpuset suspended_cpus to indicate APs are suspended/resumed. - Remove acpi_waketag and acpi_wakemap from acpivar.h (no longer used). - Add some variables in acpi_wakecode.S in order to minimize the difference among amd64 and i386. - Disable load_cr3() because now CR3 is restored in resumectx(). amd64: - Add suspend/resume related members (such as MSR) in PCB. - Modify savectx() for above new PCB members. - Merge acpi_switch.S into cpu_switch.S as resumectx(). i386: - Merge(and remove) suspendctx() into savectx() in order to match with amd64 code. Reviewed by: attilio@, acpi@
2012-06-09 00:37:26 +00:00
int savectx(struct pcb *) __returns_twice;
- Fix resumectx() prototypes to reflect reality. - For i386, simply jump to resumectx() with PCB in %ecx. - Fix a style(9) nit while I am here.
2012-06-13 21:03:01 +00:00
void resumectx(struct pcb *) __fastcall;
Initial import, 0.1 + pk 0.2.4-B1
1993-06-12 14:58:17 +00:00
#endif
All: Remove patch kit headers, and add $Id$ This is mostly to align some more code with NetBSD. cpu.h: Remove the old function vs. include configuration stuff that was ifdefed out when we went to inline functions. Remove the define of resettodr that made it a nop, there is already a function that makes it a nop, no need to #define one. Remove the #defines of processor types, they are now defined in cputypes.h, #include that file. Add struct cpu_nameclass for support of cpu types. frame.h: include sys/signal.h, it will be needed in the future. put the sigframe structure here that was in machdep.c pcb.h: Add multiple inclusion protection. Add pcb_ldt and pcb_ldt_len to pcb structure, this is for the user mode ldt.
1993-10-08 20:51:00 +00:00
#endif /* _I386_PCB_H_ */
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