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- /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @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.
- *
- * This 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.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
- /*
- * @OSF_COPYRIGHT@
- */
-
- #ifndef _MACH_PPC_THREAD_STATUS_H_
- #define _MACH_PPC_THREAD_STATUS_H_
-
- /*
- * ppc_thread_state is the structure that is exported to user threads for
- * use in status/mutate calls. This structure should never change.
- *
- */
-
- #define PPC_THREAD_STATE 1
- #define PPC_FLOAT_STATE 2
- #define PPC_EXCEPTION_STATE 3
- #define PPC_VECTOR_STATE 4
- #define THREAD_STATE_NONE 7
-
- /*
- * VALID_THREAD_STATE_FLAVOR is a platform specific macro that when passed
- * an exception flavor will return whether that is a defined flavor for
- * that platform.
- * The macro must be manually updated to include all of the valid exception
- * flavors as defined above.
- */
- #define VALID_THREAD_STATE_FLAVOR(x) \
- ((x == PPC_THREAD_STATE) || \
- (x == PPC_FLOAT_STATE) || \
- (x == PPC_EXCEPTION_STATE) || \
- (x == PPC_VECTOR_STATE) || \
- (x == THREAD_STATE_NONE))
-
- typedef struct ppc_thread_state {
- unsigned int srr0; /* Instruction address register (PC) */
- unsigned int srr1; /* Machine state register (supervisor) */
- unsigned int r0;
- unsigned int r1;
- unsigned int r2;
- unsigned int r3;
- unsigned int r4;
- unsigned int r5;
- unsigned int r6;
- unsigned int r7;
- unsigned int r8;
- unsigned int r9;
- unsigned int r10;
- unsigned int r11;
- unsigned int r12;
- unsigned int r13;
- unsigned int r14;
- unsigned int r15;
- unsigned int r16;
- unsigned int r17;
- unsigned int r18;
- unsigned int r19;
- unsigned int r20;
- unsigned int r21;
- unsigned int r22;
- unsigned int r23;
- unsigned int r24;
- unsigned int r25;
- unsigned int r26;
- unsigned int r27;
- unsigned int r28;
- unsigned int r29;
- unsigned int r30;
- unsigned int r31;
-
- unsigned int cr; /* Condition register */
- unsigned int xer; /* User's integer exception register */
- unsigned int lr; /* Link register */
- unsigned int ctr; /* Count register */
- unsigned int mq; /* MQ register (601 only) */
-
- unsigned int vrsave; /* Vector Save Register */
- } ppc_thread_state_t;
-
- /* This structure should be double-word aligned for performance */
-
- typedef struct ppc_float_state {
- double fpregs[32];
-
- unsigned int fpscr_pad; /* fpscr is 64 bits, 32 bits of rubbish */
- unsigned int fpscr; /* floating point status register */
- } ppc_float_state_t;
-
- typedef struct ppc_vector_state {
- unsigned long save_vr[32][4];
- unsigned long save_vscr[4];
- unsigned int save_pad5[4];
- unsigned int save_vrvalid; /* VRs that have been saved */
- unsigned int save_pad6[7];
- } ppc_vector_state_t;
-
- /*
- * saved state structure
- *
- * This structure corresponds to the state of the user registers as saved
- * on the stack upon kernel entry (saved in pcb). On interrupts and exceptions
- * we save all registers. On system calls we only save the registers not
- * saved by the caller.
- *
- */
-
- typedef struct ppc_saved_state {
- unsigned int srr0; /* Instruction address register (PC) */
- unsigned int srr1; /* Machine state register (supervisor) */
- unsigned int r0;
- unsigned int r1;
- unsigned int r2;
- unsigned int r3;
- unsigned int r4;
- unsigned int r5;
- unsigned int r6;
- unsigned int r7;
- unsigned int r8;
- unsigned int r9;
- unsigned int r10;
- unsigned int r11;
- unsigned int r12;
- unsigned int r13;
- unsigned int r14;
- unsigned int r15;
- unsigned int r16;
- unsigned int r17;
- unsigned int r18;
- unsigned int r19;
- unsigned int r20;
- unsigned int r21;
- unsigned int r22;
- unsigned int r23;
- unsigned int r24;
- unsigned int r25;
- unsigned int r26;
- unsigned int r27;
- unsigned int r28;
- unsigned int r29;
- unsigned int r30;
- unsigned int r31;
-
- unsigned int cr; /* Condition register */
- unsigned int xer; /* User's integer exception register */
- unsigned int lr; /* Link register */
- unsigned int ctr; /* Count register */
- unsigned int mq; /* MQ register (601 only) */
- unsigned int vrsave; /* Vector Register Save */
-
- /* These are extra. Remove them from the count */
-
- unsigned int sr_copyin; /* SR_COPYIN is used for remapping */
- unsigned int pad2[7]; /* struct alignment */
- } ppc_saved_state_t;
-
- /*
- * ppc_exception_state
- *
- * This structure corresponds to some additional state of the user
- * registers as saved in the PCB upon kernel entry. They are only
- * available if an exception is passed out of the kernel, and even
- * then not all are guaranteed to be updated.
- *
- * Some padding is included in this structure which allows space for
- * servers to store temporary values if need be, to maintain binary
- * compatiblity.
- */
-
- typedef struct ppc_exception_state {
- unsigned long dar; /* Fault registers for coredump */
- unsigned long dsisr;
- unsigned long exception;/* number of powerpc exception taken */
- unsigned long pad0; /* align to 16 bytes */
-
- unsigned long pad1[4]; /* space in PCB "just in case" */
- } ppc_exception_state_t;
-
- /*
- * Save State Flags
- */
-
- #define PPC_THREAD_STATE_COUNT \
- (sizeof(struct ppc_thread_state) / sizeof(int))
-
- #define PPC_EXCEPTION_STATE_COUNT \
- (sizeof(struct ppc_exception_state) / sizeof(int))
-
- #define PPC_FLOAT_STATE_COUNT \
- (sizeof(struct ppc_float_state) / sizeof(int))
-
- #define PPC_VECTOR_STATE_COUNT \
- (sizeof(struct ppc_vector_state) / sizeof(int))
-
- /*
- * Machine-independent way for servers and Mach's exception mechanism to
- * choose the most efficient state flavor for exception RPC's:
- */
- #define MACHINE_THREAD_STATE PPC_THREAD_STATE
- #define MACHINE_THREAD_STATE_COUNT PPC_THREAD_STATE_COUNT
-
- /*
- * Largest state on this machine:
- */
- #define THREAD_MACHINE_STATE_MAX PPC_VECTOR_STATE_COUNT
-
- #endif /* _MACH_PPC_THREAD_STATUS_H_ */
-