+++ /dev/null
-/*
- * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the License
- * may not be used to create, or enable the creation or redistribution of,
- * unlawful or unlicensed copies of an Apple operating system, or to
- * circumvent, violate, or enable the circumvention or violation of, any
- * terms of an Apple operating system software license agreement.
- *
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
- */
-/*
- * @OSF_COPYRIGHT@
- */
-
-/*
- * File: machine/thread.h
- *
- * This file contains the structure definitions for the thread
- * state as applied to PPC processors.
- */
-
-#ifndef _PPC_THREAD_H_
-#define _PPC_THREAD_H_
-
-#include <mach/boolean.h>
-#include <mach/ppc/vm_types.h>
-#include <mach/thread_status.h>
-#include <kern/lock.h>
-#include <kern/clock.h>
-#include <ppc/savearea.h>
-
-/*
- * Kernel state structure
- *
- * This holds the kernel state that is saved and restored across context
- * switches.
- */
-
-/*
- * PPC process control block
- *
- * The PCB holds normal context. It does not contain vector or floating point
- * registers.
- *
- */
-
-typedef struct savearea pcb;
-typedef struct savearea *pcb_t;
-
-struct facility_context {
-
- savearea_fpu *FPUsave; /* The floating point savearea */
- struct savearea *FPUlevel; /* The floating point context level */
- unsigned int FPUcpu; /* The last processor to enable floating point */
- unsigned int FPUsync; /* Sync lock */
- savearea_vec *VMXsave; /* The VMX savearea */
- struct savearea *VMXlevel; /* The VMX context level */
- unsigned int VMXcpu; /* The last processor to enable vector */
- unsigned int VMXsync; /* Sync lock */
- struct thread *facAct;
-};
-
-typedef struct facility_context facility_context;
-
-/*
- * Maps state flavor to number of words in the state:
- */
-__private_extern__ unsigned int _MachineStateCount[];
-
-#define USER_REGS(ThrAct) ((ThrAct)->machine.pcb)
-
-#define user_pc(ThrAct) ((ThrAct)->machine.pcb->save_srr0)
-
-#define act_machine_state_ptr(ThrAct) (thread_state_t)USER_REGS(ThrAct)
-
-struct machine_thread {
- /*
- * pointer to process control block control blocks. Potentially
- * one for each active facility context. They may point to the
- * same saveareas.
- */
- struct savearea *pcb; /* The "normal" savearea */
- struct savearea *upcb; /* The "normal" user savearea */
- facility_context *curctx; /* Current facility context */
- facility_context *deferctx; /* Deferred facility context */
- facility_context facctx; /* "Normal" facility context */
- struct vmmCntrlEntry *vmmCEntry; /* Pointer current emulation context or 0 */
- struct vmmCntrlTable *vmmControl; /* Pointer to virtual machine monitor control table */
- uint64_t qactTimer; /* Time thread needs to interrupt. This is a single-shot timer. Zero is unset */
- unsigned int umwSpace; /* Address space ID for user memory window */
-#define umwSwitchAway 0x80000000 /* Context switched away from thread since MapUserAddressWindow */
-#define umwSwitchAwayb 0
- addr64_t umwRelo; /* Relocation value for user memory window */
- unsigned int ksp; /* points to TOP OF STACK or zero */
- unsigned int preemption_count; /* preemption count */
- struct per_proc_info *PerProc; /* current per processor data */
- unsigned int bbDescAddr; /* Points to Blue Box Trap descriptor area in kernel (page aligned) */
- unsigned int bbUserDA; /* Points to Blue Box Trap descriptor area in user (page aligned) */
- unsigned int bbTableStart; /* Points to Blue Box Trap dispatch area in user */
- unsigned int emPendRupts; /* Number of pending emulated interruptions */
- unsigned int bbTaskID; /* Opaque task ID for Blue Box threads */
- unsigned int bbTaskEnv; /* Opaque task data reference for Blue Box threads */
- unsigned int specFlags; /* Special flags */
- unsigned int pmcovfl[8]; /* PMC overflow count */
- unsigned int perfmonFlags; /* Perfmon facility flags */
- unsigned int bbTrap; /* Blue Box trap vector */
- unsigned int bbSysCall; /* Blue Box syscall vector */
- unsigned int bbInterrupt; /* Blue Box interrupt vector */
- unsigned int bbPending; /* Blue Box pending interrupt vector */
-
-/* special flags bits */
-
-#define ignoreZeroFaultbit 0
-#define floatUsedbit 1
-#define vectorUsedbit 2
-#define runningVMbit 4
-#define floatCngbit 5
-#define vectorCngbit 6
-#define timerPopbit 7
-#define userProtKeybit 8
-#define FamVMenabit 11
-#define FamVMmodebit 12
-#define perfMonitorbit 13
-#define OnProcbit 14
-/* NOTE: Do not move or assign bit 31 without changing exception vector ultra fast path code */
-#define bbThreadbit 28
-#define bbNoMachSCbit 29
-#define bbPreemptivebit 30
-#define spfReserved1 31 /* See note above */
-
-#define ignoreZeroFault 0x80000000 /* (1<<(31-ignoreZeroFaultbit)) */
-#define floatUsed 0x40000000 /* (1<<(31-floatUsedbit)) */
-#define vectorUsed 0x20000000 /* (1<<(31-vectorUsedbit)) */
-
-#define runningVM 0x08000000 /* (1<<(31-runningVMbit)) */
-#define floatCng 0x04000000 /* (1<<(31-floatCngbit)) */
-#define vectorCng 0x02000000 /* (1<<(31-vectorCngbit)) */
-#define timerPop 0x01000000 /* (1<<(31-timerPopbit)) */
-
-#define userProtKey 0x00800000 /* (1<<(31-userProtKeybit)) */
-
-#define FamVMena 0x00100000 /* (1<<(31-FamVMenabit)) */
-#define FamVMmode 0x00080000 /* (1<<(31-FamVMmodebit)) */
-#define perfMonitor 0x00040000 /* (1<<(31-perfMonitorbit)) */
-#define OnProc 0x00020000 /* (1<<(31-OnProcbit)) */
-
-#define bbThread 0x00000008 /* (1<<(31-bbThreadbit)) */
-#define bbNoMachSC 0x00000004 /* (1<<(31-bbNoMachSCbit)) */
-#define bbPreemptive 0x00000002 /* (1<<(31-bbPreemptivebit)) */
-
-#define fvChkb 0
-#define fvChk 0x80000000
-
-#ifdef MACH_BSD
- uint64_t cthread_self; /* for use of cthread package */
-#endif
-
-};
-
-extern struct savearea *find_user_regs(thread_t);
-extern struct savearea *get_user_regs(thread_t);
-extern struct savearea_fpu *find_user_fpu(thread_t);
-extern struct savearea_vec *find_user_vec(thread_t);
-extern struct savearea_vec *find_user_vec_curr(void);
-extern int thread_enable_fpe(thread_t act, int onoff);
-
-extern struct savearea *find_kern_regs(thread_t);
-
-extern void *act_thread_csave(void);
-extern void act_thread_catt(void *ctx);
-extern void act_thread_cfree(void *ctx);
-
-/*
- * Return address of the function that called current function, given
- * address of the first parameter of current function. We can't
- * do it this way, since parameter was copied from a register
- * into a local variable. Call an assembly sub-function to
- * return this.
- */
-
-extern vm_offset_t getrpc(void);
-#define GET_RETURN_PC(addr) getrpc()
-
-#define STACK_IKS(stack) \
- ((vm_offset_t)(((vm_offset_t)stack)+KERNEL_STACK_SIZE)-FM_SIZE)
-
-/*
- * Defining this indicates that MD code will supply an exception()
- * routine, conformant with kern/exception.c (dependency alert!)
- * but which does wonderfully fast, machine-dependent magic.
- */
-
-#define MACHINE_FAST_EXCEPTION 1
-
-#endif /* _PPC_THREAD_H_ */
projects / apple / xnu.git / blobdiff