xnu-344.49.tar.gz

[apple/xnu.git] / osfmk / ppc / thread_act.h

diff --git a/osfmk/ppc/thread_act.h b/osfmk/ppc/thread_act.h
index 30bf02c8e7158839861f33b11d573203022be9f1..46642ba3bb3fc6d1d37fabf7c51b6bf4d9e09f78 100644 (file)
--- a/osfmk/ppc/thread_act.h
+++ b/osfmk/ppc/thread_act.h
@@ -3,19 +3,22 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
  *
  * @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,
  * 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@
  */
  * 
  * @APPLE_LICENSE_HEADER_END@
  */


@@ -33,48 +36,47 @@
 #include <mach/thread_status.h>
 #include <kern/lock.h>
 #include <kern/clock.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
 
 /*
  * 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
  *
  */
 
 /*
  * 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[];
 
 
 /*
  * 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)
 
 
 #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.
         */
         * 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 */
        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    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 */
        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 ignoreZeroFaultbit             0
 #define floatUsedbit                   1
 #define vectorUsedbit                  2

-#define bbNoMachSCbit                  3

 #define runningVMbit                   4
 #define floatCngbit                            5
 #define vectorCngbit                   6
 #define timerPopbit                            7
 #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 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 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 */
 
 #ifdef MACH_BSD
        unsigned long   cthread_self;   /* for use of cthread package */


@@ -129,7 +147,16 @@ typedef struct MachineThrAct {
 
 } MachineThrAct, *MachineThrAct_t;
 
 
 } 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_ */
 
 #endif /* _PPC_THREAD_ACT_H_ */