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freebsd-dev/sys/sparc64/include/param.h

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Add skeleton machine dependent headers and c files for a port of freebsd to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +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.
*
* 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.
*
* from: @(#)param.h 5.8 (Berkeley) 6/28/91
* $FreeBSD$
*/
/*
* Machine dependent constants for sparc64.
*/
/*
* Round p (pointer or byte index) up to a correctly-aligned value
* for all data types (int, long, ...). The result is unsigned int
* and must be cast to any desired pointer type.
*/
#ifndef _ALIGNBYTES
#define _ALIGNBYTES 0xf
#endif
#ifndef _ALIGN
#define _ALIGN(p) (((u_long)(p) + _ALIGNBYTES) & ~_ALIGNBYTES)
#endif
#ifndef _NO_NAMESPACE_POLLUTION
#ifndef _MACHINE_PARAM_H_
#define _MACHINE_PARAM_H_
#ifndef MACHINE
#define MACHINE "sparc64"
#endif
#ifndef MACHINE_ARCH
#define MACHINE_ARCH "sparc64"
#endif
#define MID_MACHINE MID_SPARC64
#ifdef SMP
#define MAXCPU 16
#else
#define MAXCPU 1
#endif /* SMP */
Add a macro for shift of an integer (1 << shift == sizeof). Move the pointer define to live alongside it. For kicks assert at compile time that they are correct. Use these instead of magic numbers.
2002-02-27 00:21:04 +00:00
#define INT_SHIFT 2
#define PTR_SHIFT 3
Add skeleton machine dependent headers and c files for a port of freebsd to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +00:00
#define ALIGNBYTES _ALIGNBYTES
#define ALIGN(p) _ALIGN(p)
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 PAGE_SHIFT_8K 13
Make PAGE_SIZE and related quantities signed on sparc64. (They are signed quantities on every other architecture.) This change is required in order to move pmap_prefault() out of the pmap and into the machine-independent layer.
2003-10-03 19:49:08 +00:00
#define PAGE_SIZE_8K (1L<<PAGE_SHIFT_8K)
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 PAGE_MASK_8K (PAGE_SIZE_8K-1)
Add skeleton machine dependent headers and c files for a port of freebsd to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +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 PAGE_SHIFT_64K 16
Make PAGE_SIZE and related quantities signed on sparc64. (They are signed quantities on every other architecture.) This change is required in order to move pmap_prefault() out of the pmap and into the machine-independent layer.
2003-10-03 19:49:08 +00:00
#define PAGE_SIZE_64K (1L<<PAGE_SHIFT_64K)
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 PAGE_MASK_64K (PAGE_SIZE_64K-1)
#define PAGE_SHIFT_512K 19
Make PAGE_SIZE and related quantities signed on sparc64. (They are signed quantities on every other architecture.) This change is required in order to move pmap_prefault() out of the pmap and into the machine-independent layer.
2003-10-03 19:49:08 +00:00
#define PAGE_SIZE_512K (1L<<PAGE_SHIFT_512K)
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 PAGE_MASK_512K (PAGE_SIZE_512K-1)
#define PAGE_SHIFT_4M 22
Make PAGE_SIZE and related quantities signed on sparc64. (They are signed quantities on every other architecture.) This change is required in order to move pmap_prefault() out of the pmap and into the machine-independent layer.
2003-10-03 19:49:08 +00:00
#define PAGE_SIZE_4M (1L<<PAGE_SHIFT_4M)
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 PAGE_MASK_4M (PAGE_SIZE_4M-1)
add new large page sizes for use by shared loader
2006-12-18 07:28:59 +00:00
#define PAGE_SHIFT_32M 25
#define PAGE_SIZE_32M (1L<<PAGE_SHIFT_32M)
#define PAGE_MASK_32M (PAGE_SIZE_32M-1)
#define PAGE_SHIFT_256M 28
#define PAGE_SIZE_256M (1L<<PAGE_SHIFT_256M)
#define PAGE_MASK_256M (PAGE_SIZE_256M-1)
Header file updates needed for the cache code: add/correct some ASI definitions and add PAGE_*_MIN and -_MAX macros.
2001-11-09 19:37:52 +00:00
#define PAGE_SHIFT_MIN PAGE_SHIFT_8K
#define PAGE_SIZE_MIN PAGE_SIZE_8K
#define PAGE_MASK_MIN PAGE_MASK_8K
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 PAGE_SHIFT PAGE_SHIFT_8K /* LOG2(PAGE_SIZE) */
#define PAGE_SIZE PAGE_SIZE_8K /* bytes/page */
#define PAGE_MASK PAGE_MASK_8K
Header file updates needed for the cache code: add/correct some ASI definitions and add PAGE_*_MIN and -_MAX macros.
2001-11-09 19:37:52 +00:00
#define PAGE_SHIFT_MAX PAGE_SHIFT_4M
#define PAGE_SIZE_MAX PAGE_SIZE_4M
#define PAGE_MASK_MAX PAGE_MASK_4M
Add skeleton machine dependent headers and c files for a port of freebsd to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +00:00
Deal with 'options KSTACK_PAGES' being a global option.
2003-07-31 01:31:32 +00:00
#ifndef KSTACK_PAGES
Add a panic stack, which is used as a known good stack when there is something wrong with the kernel stack. Add code to check the kernel stack pointer in various important places and try hard not to go down in flames if its wrong.
2002-01-01 20:26:46 +00:00
#define KSTACK_PAGES 4 /* pages of kernel stack (with pcb) */
Deal with 'options KSTACK_PAGES' being a global option.
2003-07-31 01:31:32 +00:00
#endif
Migrate the thread stack management functions from the machine-dependent to the machine-independent parts of the VM. At the same time, this introduces vm object locking for the non-i386 platforms. Two details: 1. KSTACK_GUARD has been removed in favor of KSTACK_GUARD_PAGES. The different machine-dependent implementations used various combinations of KSTACK_GUARD and KSTACK_GUARD_PAGES. To disable guard page, set KSTACK_GUARD_PAGES to 0. 2. Remove the (unnecessary) clearing of PG_ZERO in vm_thread_new. In 5.x, (but not 4.x,) PG_ZERO can only be set if VM_ALLOC_ZERO is passed to vm_page_alloc() or vm_page_grab().
2003-06-14 23:23:55 +00:00
#define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */
Parameterize the number of pages to allocate for the per-cpu area on PCPU_PAGES.
2002-02-27 06:08:13 +00:00
#define PCPU_PAGES 1
Add a panic stack, which is used as a known good stack when there is something wrong with the kernel stack. Add code to check the kernel stack pointer in various important places and try hard not to go down in flames if its wrong.
2002-01-01 20:26:46 +00:00
Add a default value for VM_BCACHE_SIZE_MAX of 400MB. This is copied from amd64, and is a factor of 3 less than the value previously auto-sized on a 12GB machine, which would cause an overflow in calculations involving the maxbcache int, causing bufinit() to loop forever at boot. Reviewed by: mlaier, peter
2005-10-14 20:31:12 +00:00
/*
* Ceiling on size of buffer cache (really only effects write queueing,
* the VM page cache is not effected), can be changed via
* the kern.maxbcache /boot/loader.conf variable.
*/
#ifndef VM_BCACHE_SIZE_MAX
#define VM_BCACHE_SIZE_MAX (400 * 1024 * 1024)
#endif
Add skeleton machine dependent headers and c files for a port of freebsd to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +00:00
/*
* Mach derived conversion macros
*/
#define round_page(x) (((unsigned long)(x) + PAGE_MASK) & ~PAGE_MASK)
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 trunc_page(x) ((unsigned long)(x) & ~PAGE_MASK)
Add skeleton machine dependent headers and c files for a port of freebsd to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
2001-07-31 05:45:16 +00:00
#define atop(x) ((unsigned long)(x) >> PAGE_SHIFT)
#define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT)
#define sparc64_btop(x) ((unsigned long)(x) >> PAGE_SHIFT)
#define sparc64_ptob(x) ((unsigned long)(x) << PAGE_SHIFT)
#define pgtok(x) ((unsigned long)(x) * (PAGE_SIZE / 1024))
#endif /* !_MACHINE_PARAM_H_ */
#endif /* !_NO_NAMESPACE_POLLUTION */
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