xnu-344.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 09e3097c5e707c6d069dfd459becd6540e92a889..9d0a0cbb10348a2fc941282d738c306c478de413 100644 (file)
--- a/osfmk/ppc/thread_act.h
+++ b/osfmk/ppc/thread_act.h
@@ -33,6 +33,7 @@
 #include <mach/thread_status.h>
 #include <kern/lock.h>
 #include <kern/clock.h>
+#include <ppc/savearea.h>
 
 /*
  * Kernel state structure
@@ -44,33 +45,35 @@
 /*
  * 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)
 
@@ -80,13 +83,10 @@ 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 */
        uint64_t                qactTimer;              /* Time thread needs to interrupt. This is a single-shot timer. Zero is unset */
@@ -109,6 +109,8 @@ typedef struct MachineThrAct {
 #define vectorCngbit                   6
 #define timerPopbit                            7
 #define userProtKeybit                 8
+#define trapUnalignbit                 9
+#define notifyUnalignbit               10
 /*     NOTE: Do not move or assign bit 31 without changing exception vector ultra fast path code */
 #define bbThreadbit                            28
 #define bbNoMachSCbit                  29
@@ -123,6 +125,8 @@ typedef struct MachineThrAct {
 #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 bbThread                       (1<<(31-bbThreadbit))
 #define bbNoMachSC                     (1<<(31-bbNoMachSCbit))
 #define bbPreemptive           (1<<(31-bbPreemptivebit))
@@ -136,11 +140,16 @@ 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_ */