*
* @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@
*/
#include <mach/thread_status.h>
#include <kern/lock.h>
#include <kern/clock.h>
+#include <ppc/savearea.h>
/*
* Kernel state structure
/*
* 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)
* 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 */
#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 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))
} 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_ */
projects / apple / xnu.git / blobdiff