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freebsd-nq/sys/sparc64/include/asmacros.h

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Flesh out the sparc64 port considerably. This contains: - mostly complete kernel pmap support, and tested but currently turned off userland pmap support - low level assembly language trap, context switching and support code - fully implemented atomic.h and supporting cpufunc.h - some support for kernel debugging with ddb - various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
/*-
* Copyright (c) 2001 Jake Burkholder.
* 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.
*
The author isn't a [UC] Regents. Correct the copyright language.
2001-08-09 02:09:34 +00:00
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
Flesh out the sparc64 port considerably. This contains: - mostly complete kernel pmap support, and tested but currently turned off userland pmap support - low level assembly language trap, context switching and support code - fully implemented atomic.h and supporting cpufunc.h - some support for kernel debugging with ddb - various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
The author isn't a [UC] Regents. Correct the copyright language.
2001-08-09 02:09:34 +00:00
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
Flesh out the sparc64 port considerably. This contains: - mostly complete kernel pmap support, and tested but currently turned off userland pmap support - low level assembly language trap, context switching and support code - fully implemented atomic.h and supporting cpufunc.h - some support for kernel debugging with ddb - various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
* 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.
*
* $FreeBSD$
*/
#ifndef _MACHINE_ASMACROS_H_
#define _MACHINE_ASMACROS_H_
#ifdef _KERNEL
Add macros for dedicated register variables, for use in assmebler. Add a PUTS macro.
2001-12-29 06:47:50 +00:00
/*
* Normal and alternate %g7 point to per-cpu data.
*/
#define PCPU_REG %g7
/*
* Alternate %g5 points to a per-cpu stack for temporarily saving alternate
* globals, alternate %g6 points to the pcb of the current process.
*/
#define ASP_REG %g5
#define PCB_REG %g6
/*
* Interrupt %g6 points to a per-cpu interrupt queue, %g7 points to the
* interrupt vector table.
*/
#define IQ_REG %g6
#define IV_REG %g7
/*
* MMU %g7 points to the user tsb.
*/
#define TSB_REG %g7
Gcc 3.0 requires a .register pseudo-op for certain global registers when used in assembly language. Tell it to ignore the registers for now.
2001-08-18 18:05:24 +00:00
Overhaul the per-CPU support a bit: - The MI portions of struct globaldata have been consolidated into a MI struct pcpu. The MD per-CPU data are specified via a macro defined in machine/pcpu.h. A macro was chosen over a struct mdpcpu so that the interface would be cleaner (PCPU_GET(my_md_field) vs. PCPU_GET(md.md_my_md_field)). - All references to globaldata are changed to pcpu instead. In a UP kernel, this data was stored as global variables which is where the original name came from. In an SMP world this data is per-CPU and ideally private to each CPU outside of the context of debuggers. This also included combining machine/globaldata.h and machine/globals.h into machine/pcpu.h. - The pointer to the thread using the FPU on i386 was renamed from npxthread to fpcurthread to be identical with other architectures. - Make the show pcpu ddb command MI with a MD callout to display MD fields. - The globaldata_register() function was renamed to pcpu_init() and now init's MI fields of a struct pcpu in addition to registering it with the internal array and list. - A pcpu_destroy() function was added to remove a struct pcpu from the internal array and list. Tested on: alpha, i386 Reviewed by: peter, jake
2001-12-11 23:33:44 +00:00
#define PCPU(member) %g7 + PC_ ## member
#define PCPU_ADDR(member, reg) add %g7, PC_ ## member, reg
Implement PCPU_ADDR. Align functions on 16 bytes boundaries.
2001-09-30 18:41:57 +00:00
Flesh out the sparc64 port considerably. This contains: - mostly complete kernel pmap support, and tested but currently turned off userland pmap support - low level assembly language trap, context switching and support code - fully implemented atomic.h and supporting cpufunc.h - some support for kernel debugging with ddb - various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
#define DEBUGGER() ta %xcc, 1
Implement PCPU_ADDR. Align functions on 16 bytes boundaries.
2001-09-30 18:41:57 +00:00
Add macros for dedicated register variables, for use in assmebler. Add a PUTS macro.
2001-12-29 06:47:50 +00:00
#define PANIC(msg, r1) \
Flesh out the sparc64 port considerably. This contains: - mostly complete kernel pmap support, and tested but currently turned off userland pmap support - low level assembly language trap, context switching and support code - fully implemented atomic.h and supporting cpufunc.h - some support for kernel debugging with ddb - various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
.sect .rodata ; \
9: .asciz msg ; \
.previous ; \
Add macros for dedicated register variables, for use in assmebler. Add a PUTS macro.
2001-12-29 06:47:50 +00:00
SET(9b, r1, %o0) ; \
Flesh out the sparc64 port considerably. This contains: - mostly complete kernel pmap support, and tested but currently turned off userland pmap support - low level assembly language trap, context switching and support code - fully implemented atomic.h and supporting cpufunc.h - some support for kernel debugging with ddb - various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
call panic ; \
nop
Add macros for dedicated register variables, for use in assmebler. Add a PUTS macro.
2001-12-29 06:47:50 +00:00
#define PUTS(msg, r1) \
.sect .rodata ; \
9: .asciz msg ; \
.previous ; \
SET(9b, r1, %o0) ; \
call printf ; \
nop
Flesh out the sparc64 port considerably. This contains: - mostly complete kernel pmap support, and tested but currently turned off userland pmap support - low level assembly language trap, context switching and support code - fully implemented atomic.h and supporting cpufunc.h - some support for kernel debugging with ddb - various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
#endif
#define DATA(name) \
.data ; \
.globl name ; \
.type name, @object ; \
name ## :
#define EMPTY
#define ENTRY(name) \
.text ; \
Implement PCPU_ADDR. Align functions on 16 bytes boundaries.
2001-09-30 18:41:57 +00:00
.align 16 ; \
Flesh out the sparc64 port considerably. This contains: - mostly complete kernel pmap support, and tested but currently turned off userland pmap support - low level assembly language trap, context switching and support code - fully implemented atomic.h and supporting cpufunc.h - some support for kernel debugging with ddb - various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
.globl name ; \
.type name, @function ; \
name ## :
#define END(name) \
.size name, . - name
Implement SET. Set execption.s 1.12. Submitted by: tmm
2001-11-18 03:31:01 +00:00
/*
* If the kernel can be located above 4G, setx needs to be used to load
* symbol values, otherwise set is sufficient.
*/
#ifdef HIGH_KERNEL
#define SET(sym, tmp, dst) \
setx sym, tmp, dst
#else
#define SET(sym, tmp, dst) \
set sym, dst
#endif
Flesh out the sparc64 port considerably. This contains: - mostly complete kernel pmap support, and tested but currently turned off userland pmap support - low level assembly language trap, context switching and support code - fully implemented atomic.h and supporting cpufunc.h - some support for kernel debugging with ddb - various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00
#endif /* !_MACHINE_ASMACROS_H_ */
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