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freebsd-dev/sys/sparc64/include/frame.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) 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
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
* 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
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
* 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_FRAME_H_
#define _MACHINE_FRAME_H_
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 SPOFF 2047
style(9) the structure names
2001-09-04 09:23:23 +00:00
struct trapframe {
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
u_long tf_global[8];
u_long tf_out[8];
Add a field to trapframe for saving the pil.
2001-08-10 04:18:13 +00:00
u_long tf_pil;
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
u_long tf_tnpc;
u_long tf_tpc;
u_long tf_tstate;
u_long tf_type;
Implement a slightly different window spill/fill algorithm for dealing with user windows in kernel mode. We split the windows using %otherwin, but instead of spilling user window directly to the pcb, we attempt to spill to user space. If this fails because a stack page is not resident (or the stack is smashed), the fault handler at tl 2 will detect the situation and resume at tl 1 again where recovery code can spill to the pcb. Any windows that have been saved to the pcb will be copied out to the user stack on return from kernel mode. Add a first stab at 32 bit window handling. This uses much of the same recovery code as above because the alignment of the stack pointer is used to detect 32 bit code. Attempting to spill a 32 bit window to a 64 bit stack, or vice versa, will cause an alignment fault. The recovery code then changes the window state to vector to a 32 bit spill/fill handler and retries the faulting instruction. Add ktr traces in useful places during trap processing. Adjust comments to reflect new code and add many more.
2001-09-03 23:10:45 +00:00
u_long tf_wstate;
uintptr_t tf_arg;
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 tf_sp tf_out[6]
Add code to emulate unimplemented (non-fp) instructions and to fixup unaligned accesses, and instr.h, which contrains definitions for the sparc64 instruction set (partly from NetBSD). Make use of some definitions from instr.h in db_disasm.c.
2001-11-06 20:13:44 +00:00
#define TF_DONE(tf) do { \
tf->tf_tpc = tf->tf_tnpc; \
tf->tf_tnpc += 4; \
} while (0)
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
1. Remove kdbframe. Bad idea. 2. Add a TF_DONE macro, which fiddles a trapframe to make the retry on return from traps act like a done (advance past the trapping instruction instead of re-executing). 3. Flush the windows before entering the debugger, since it is no longer done in the breakpoint trap vector. 4. Print a warning if trace <pid> is attempted, it is not yet implemented. 5. Print traps better and decode system calls in traces. Submitted by: rwatson (4)
2001-11-18 03:41:12 +00:00
#define TF_DONE(tf) do { \
tf->tf_tpc = tf->tf_tnpc; \
tf->tf_tnpc += 4; \
} while (0)
style(9) the structure names
2001-09-04 09:23:23 +00:00
struct mmuframe {
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
u_long mf_sfar;
u_long mf_sfsr;
u_long mf_tar;
};
style(9) the structure names
2001-09-04 09:23:23 +00:00
struct clockframe {
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
struct trapframe cf_tf;
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
};
style(9) the structure names
2001-09-04 09:23:23 +00:00
struct frame {
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
u_long f_local[8];
u_long f_in[8];
u_long f_pad[8];
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 f_fp f_in[6]
#define f_pc f_in[7]
Add support for splitting the register windows on entry to the kernel from usermode. The remaining user windows are spilled to the pcb as necessary. The user land window fault handlers fill directly from the pcb on return. Add system call entry points. Submitted by: tmm
2001-08-20 23:40:31 +00:00
/*
* Frame used for pcb_wscratch.
*/
style(9) the structure names
2001-09-04 09:23:23 +00:00
struct rwindow {
Implement a slightly different window spill/fill algorithm for dealing with user windows in kernel mode. We split the windows using %otherwin, but instead of spilling user window directly to the pcb, we attempt to spill to user space. If this fails because a stack page is not resident (or the stack is smashed), the fault handler at tl 2 will detect the situation and resume at tl 1 again where recovery code can spill to the pcb. Any windows that have been saved to the pcb will be copied out to the user stack on return from kernel mode. Add a first stab at 32 bit window handling. This uses much of the same recovery code as above because the alignment of the stack pointer is used to detect 32 bit code. Attempting to spill a 32 bit window to a 64 bit stack, or vice versa, will cause an alignment fault. The recovery code then changes the window state to vector to a 32 bit spill/fill handler and retries the faulting instruction. Add ktr traces in useful places during trap processing. Adjust comments to reflect new code and add many more.
2001-09-03 23:10:45 +00:00
u_long rw_local[8];
u_long rw_in[8];
Add support for splitting the register windows on entry to the kernel from usermode. The remaining user windows are spilled to the pcb as necessary. The user land window fault handlers fill directly from the pcb on return. Add system call entry points. Submitted by: tmm
2001-08-20 23:40:31 +00:00
};
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;
Implement a slightly different window spill/fill algorithm for dealing with user windows in kernel mode. We split the windows using %otherwin, but instead of spilling user window directly to the pcb, we attempt to spill to user space. If this fails because a stack page is not resident (or the stack is smashed), the fault handler at tl 2 will detect the situation and resume at tl 1 again where recovery code can spill to the pcb. Any windows that have been saved to the pcb will be copied out to the user stack on return from kernel mode. Add a first stab at 32 bit window handling. This uses much of the same recovery code as above because the alignment of the stack pointer is used to detect 32 bit code. Attempting to spill a 32 bit window to a 64 bit stack, or vice versa, will cause an alignment fault. The recovery code then changes the window state to vector to a 32 bit spill/fill handler and retries the faulting instruction. Add ktr traces in useful places during trap processing. Adjust comments to reflect new code and add many more.
2001-09-03 23:10:45 +00:00
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
int rwindow_save(struct thread *td);
int rwindow_load(struct thread *td, struct trapframe *tf, int n);
Implement a slightly different window spill/fill algorithm for dealing with user windows in kernel mode. We split the windows using %otherwin, but instead of spilling user window directly to the pcb, we attempt to spill to user space. If this fails because a stack page is not resident (or the stack is smashed), the fault handler at tl 2 will detect the situation and resume at tl 1 again where recovery code can spill to the pcb. Any windows that have been saved to the pcb will be copied out to the user stack on return from kernel mode. Add a first stab at 32 bit window handling. This uses much of the same recovery code as above because the alignment of the stack pointer is used to detect 32 bit code. Attempting to spill a 32 bit window to a 64 bit stack, or vice versa, will cause an alignment fault. The recovery code then changes the window state to vector to a 32 bit spill/fill handler and retries the faulting instruction. Add ktr traces in useful places during trap processing. Adjust comments to reflect new code and add many more.
2001-09-03 23:10:45 +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
int kdb_trap(struct trapframe *tf);
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
#endif /* !_MACHINE_FRAME_H_ */
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