X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..43866e378188c25dd1e2208016ab3cbeb086ae6c:/osfmk/ppc/thread_act.h?ds=sidebyside diff --git a/osfmk/ppc/thread_act.h b/osfmk/ppc/thread_act.h index 30bf02c8e..46642ba3b 100644 --- a/osfmk/ppc/thread_act.h +++ b/osfmk/ppc/thread_act.h @@ -3,19 +3,22 @@ * * @APPLE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * 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. 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 OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * 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_LICENSE_HEADER_END@ */ @@ -33,48 +36,47 @@ #include #include #include - +#include /* * Kernel state structure * * This holds the kernel state that is saved and restored across context - * switches. This is kept at the top of the kernel stack. - * - * XXX Some state is saved only because it is not saved on entry to the - * kernel from user mode. This needs to be straightened out. + * switches. */ /* * PPC process control block * - * In the continuation model, the PCB holds the user context. It is used - * on entry to the kernel from user mode, either by system call or trap, - * to store the necessary user registers and other state. + * The PCB holds normal context. It does not contain vector or floating point + * registers. * - * Note that this structure overlays a savearea. Make sure that these - * guys are updated in concert with that. */ -struct pcb -{ - struct ppc_saved_state ss; - struct ppc_exception_state es; - struct ppc_float_state fs; - unsigned int gas1[6]; /* Force alignment with savearea */ - struct ppc_vector_state vec; +typedef struct savearea pcb; +typedef struct savearea *pcb_t; + +struct facility_context { + + savearea_fpu *FPUsave; /* The floating point savearea */ + savearea *FPUlevel; /* The floating point context level */ + unsigned int FPUcpu; /* The last processor to enable floating point */ + savearea_vec *VMXsave; /* The VMX savearea */ + savearea *VMXlevel; /* The VMX context level */ + unsigned int VMXcpu; /* The last processor to enable vector */ + struct thread_activation *facAct; /* Activation associated with context */ }; -typedef struct pcb *pcb_t; +typedef struct facility_context facility_context; /* * Maps state flavor to number of words in the state: */ extern unsigned int state_count[]; -#define USER_REGS(ThrAct) (&(ThrAct)->mact.pcb->ss) +#define USER_REGS(ThrAct) ((ThrAct)->mact.pcb) -#define user_pc(ThrAct) ((ThrAct)->mact.pcb->ss.srr0) +#define user_pc(ThrAct) ((ThrAct)->mact.pcb->save_srr0) #define act_machine_state_ptr(ThrAct) (thread_state_t)USER_REGS(ThrAct) @@ -84,21 +86,18 @@ typedef struct MachineThrAct { * one for each active facility context. They may point to the * same saveareas. */ - pcb_t pcb; /* The "normal" savearea */ - pcb_t FPU_pcb; /* The floating point savearea */ - pcb_t FPU_lvl; /* The floating point context level */ - unsigned int FPU_cpu; /* The last processor to enable floating point */ - pcb_t VMX_pcb; /* The VMX savearea */ - pcb_t VMX_lvl; /* The VMX context level */ - unsigned int VMX_cpu; /* The last processor to enable vector */ + savearea *pcb; /* The "normal" 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 */ - AbsoluteTime qactTimer; /* Time thread needs to interrupt. This is a single-shot timer. Zero is unset */ + uint64_t qactTimer; /* Time thread needs to interrupt. This is a single-shot timer. Zero is unset */ unsigned int ksp; /* points to TOP OF STACK or zero */ 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 bbPendRupt; /* Number of pending Blue Box interruptions */ + 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 */ @@ -108,20 +107,39 @@ typedef struct MachineThrAct { #define ignoreZeroFaultbit 0 #define floatUsedbit 1 #define vectorUsedbit 2 -#define bbNoMachSCbit 3 #define runningVMbit 4 #define floatCngbit 5 #define vectorCngbit 6 #define timerPopbit 7 +#define userProtKeybit 8 +#define trapUnalignbit 9 +#define notifyUnalignbit 10 +#define FamVMenabit 11 +#define FamVMmodebit 12 +/* 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 (1<<(31-ignoreZeroFaultbit)) #define floatUsed (1<<(31-floatUsedbit)) #define vectorUsed (1<<(31-vectorUsedbit)) -#define bbNoMachSC (1<<(31-bbNoMachSCbit)) #define runningVM (1<<(31-runningVMbit)) #define floatCng (1<<(31-floatCngbit)) #define vectorCng (1<<(31-vectorCngbit)) #define timerPop (1<<(31-timerPopbit)) +#define userProtKey (1<<(31-userProtKeybit)) +#define trapUnalign (1<<(31-trapUnalignbit)) +#define notifyUnalign (1<<(31-notifyUnalignbit)) +#define FamVMena (1<<(31-FamVMenabit)) +#define FamVMmode (1<<(31-FamVMmodebit)) +#define bbThread (1<<(31-bbThreadbit)) +#define bbNoMachSC (1<<(31-bbNoMachSCbit)) +#define bbPreemptive (1<<(31-bbPreemptivebit)) + +#define fvChkb 0 +#define fvChk 0x80000000 #ifdef MACH_BSD unsigned long cthread_self; /* for use of cthread package */ @@ -129,7 +147,16 @@ typedef struct MachineThrAct { } MachineThrAct, *MachineThrAct_t; -extern struct ppc_saved_state * find_user_regs(thread_act_t act); -extern struct ppc_float_state * find_user_fpu(thread_act_t act); +extern struct savearea *find_user_regs(thread_act_t act); +extern struct savearea *get_user_regs(thread_act_t); +extern struct savearea_fpu *find_user_fpu(thread_act_t act); +extern struct savearea_vec *find_user_vec(thread_act_t act); +extern int thread_enable_fpe(thread_act_t act, int onoff); + +extern void *act_thread_csave(void); +extern void act_thread_catt(void *ctx); +extern void act_thread_cfree(void *ctx); + +#define current_act_fast() current_act() #endif /* _PPC_THREAD_ACT_H_ */