1/*-
2 * Copyright (C) 1995-1997 Wolfgang Solfrank.
3 * Copyright (C) 1995-1997 TooLs GmbH.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by TooLs GmbH.
17 * 4. The name of TooLs GmbH may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 * $NetBSD: cpu.h,v 1.11 2000/05/26 21:19:53 thorpej Exp $
| 1/*-
2 * Copyright (C) 1995-1997 Wolfgang Solfrank.
3 * Copyright (C) 1995-1997 TooLs GmbH.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by TooLs GmbH.
17 * 4. The name of TooLs GmbH may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 * $NetBSD: cpu.h,v 1.11 2000/05/26 21:19:53 thorpej Exp $
|
33 */
34
35#ifndef _MACHINE_CPU_H_
36#define _MACHINE_CPU_H_
37
38#include <machine/frame.h>
39#include <machine/pcb.h>
40#include <machine/psl.h>
41
42/*
43 * CPU Feature Attributes
44 *
45 * These are defined in the PowerPC ELF ABI for the AT_HWCAP vector,
46 * and are exported to userland via the machdep.cpu_features
47 * sysctl.
48 */
49
50extern int cpu_features;
51
52#define PPC_FEATURE_32 0x80000000 /* Always true */
53#define PPC_FEATURE_64 0x40000000 /* Defined on a 64-bit CPU */
54#define PPC_FEATURE_HAS_ALTIVEC 0x10000000
55#define PPC_FEATURE_HAS_FPU 0x08000000
56#define PPC_FEATURE_HAS_MMU 0x04000000
57#define PPC_FEATURE_UNIFIED_CACHE 0x01000000
58
59#define PPC_FEATURE_BITMASK \
60 "\20" \
61 "\040PPC32\037PPC64\035ALTIVEC\034FPU\033MMU\031UNIFIEDCACHE"
62
63#define TRAPF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0)
64#define TRAPF_PC(frame) ((frame)->srr0)
65
66#define cpu_swapout(p)
67#define cpu_number() 0
68
69/*
70 * CTL_MACHDEP definitions.
71 */
72#define CPU_CACHELINE 1
73
74static __inline u_int64_t
75get_cyclecount(void)
76{
77 u_int32_t _upper, _lower;
78 u_int64_t _time;
79
80 __asm __volatile(
81 "mftb %0\n"
82 "mftbu %1"
83 : "=r" (_lower), "=r" (_upper));
84
85 _time = (u_int64_t)_upper;
86 _time = (_time << 32) + _lower;
87 return (_time);
88}
89
90#define cpu_getstack(td) ((td)->td_frame->fixreg[1])
91#define cpu_spinwait() /* nothing */
92
93extern char btext[];
94extern char etext[];
95
96void cpu_halt(void);
97void cpu_reset(void);
| 33 */
34
35#ifndef _MACHINE_CPU_H_
36#define _MACHINE_CPU_H_
37
38#include <machine/frame.h>
39#include <machine/pcb.h>
40#include <machine/psl.h>
41
42/*
43 * CPU Feature Attributes
44 *
45 * These are defined in the PowerPC ELF ABI for the AT_HWCAP vector,
46 * and are exported to userland via the machdep.cpu_features
47 * sysctl.
48 */
49
50extern int cpu_features;
51
52#define PPC_FEATURE_32 0x80000000 /* Always true */
53#define PPC_FEATURE_64 0x40000000 /* Defined on a 64-bit CPU */
54#define PPC_FEATURE_HAS_ALTIVEC 0x10000000
55#define PPC_FEATURE_HAS_FPU 0x08000000
56#define PPC_FEATURE_HAS_MMU 0x04000000
57#define PPC_FEATURE_UNIFIED_CACHE 0x01000000
58
59#define PPC_FEATURE_BITMASK \
60 "\20" \
61 "\040PPC32\037PPC64\035ALTIVEC\034FPU\033MMU\031UNIFIEDCACHE"
62
63#define TRAPF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0)
64#define TRAPF_PC(frame) ((frame)->srr0)
65
66#define cpu_swapout(p)
67#define cpu_number() 0
68
69/*
70 * CTL_MACHDEP definitions.
71 */
72#define CPU_CACHELINE 1
73
74static __inline u_int64_t
75get_cyclecount(void)
76{
77 u_int32_t _upper, _lower;
78 u_int64_t _time;
79
80 __asm __volatile(
81 "mftb %0\n"
82 "mftbu %1"
83 : "=r" (_lower), "=r" (_upper));
84
85 _time = (u_int64_t)_upper;
86 _time = (_time << 32) + _lower;
87 return (_time);
88}
89
90#define cpu_getstack(td) ((td)->td_frame->fixreg[1])
91#define cpu_spinwait() /* nothing */
92
93extern char btext[];
94extern char etext[];
95
96void cpu_halt(void);
97void cpu_reset(void);
|