2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (C) 1995-1997 Wolfgang Solfrank.
5 * Copyright (C) 1995-1997 TooLs GmbH.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by TooLs GmbH.
19 * 4. The name of TooLs GmbH may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 * $NetBSD: cpu.h,v 1.11 2000/05/26 21:19:53 thorpej Exp $
37 #ifndef _MACHINE_CPU_H_
38 #define _MACHINE_CPU_H_
40 #include <machine/frame.h>
41 #include <machine/pcb.h>
42 #include <machine/psl.h>
45 * CPU Feature Attributes
47 * These are defined in the PowerPC ELF ABI for the AT_HWCAP vector,
48 * and are exported to userland via the machdep.cpu_features
52 extern int cpu_features;
53 extern int cpu_features2;
55 #define PPC_FEATURE_32 0x80000000 /* Always true */
56 #define PPC_FEATURE_64 0x40000000 /* Defined on a 64-bit CPU */
57 #define PPC_FEATURE_HAS_ALTIVEC 0x10000000
58 #define PPC_FEATURE_HAS_FPU 0x08000000
59 #define PPC_FEATURE_HAS_MMU 0x04000000
60 #define PPC_FEATURE_UNIFIED_CACHE 0x01000000
61 #define PPC_FEATURE_HAS_SPE 0x00800000
62 #define PPC_FEATURE_HAS_EFP_SINGLE 0x00400000
63 #define PPC_FEATURE_HAS_EFP_DOUBLE 0x00200000
64 #define PPC_FEATURE_BOOKE 0x00008000
65 #define PPC_FEATURE_SMT 0x00004000
66 #define PPC_FEATURE_ARCH_2_05 0x00001000
67 #define PPC_FEATURE_HAS_DFP 0x00000400
68 #define PPC_FEATURE_ARCH_2_06 0x00000100
69 #define PPC_FEATURE_HAS_VSX 0x00000080
71 #define PPC_FEATURE2_ARCH_2_07 0x80000000
72 #define PPC_FEATURE2_HAS_HTM 0x40000000
73 #define PPC_FEATURE2_ISEL 0x08000000
74 #define PPC_FEATURE2_HAS_VCRYPTO 0x02000000
76 #define PPC_FEATURE_BITMASK \
78 "\040PPC32\037PPC64\035ALTIVEC\034FPU\033MMU\031UNIFIEDCACHE" \
79 "\030SPE\027SPESFP\026DPESFP\020BOOKE\017SMT\015ARCH205\013DFP" \
81 #define PPC_FEATURE2_BITMASK \
83 "\040ARCH207\037HTM\034ISEL\032VCRYPTO"
85 #define TRAPF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0)
86 #define TRAPF_PC(frame) ((frame)->srr0)
89 * CTL_MACHDEP definitions.
91 #define CPU_CACHELINE 1
93 static __inline u_int64_t
96 u_int32_t _upper, _lower;
102 : "=r" (_lower), "=r" (_upper));
104 _time = (u_int64_t)_upper;
105 _time = (_time << 32) + _lower;
109 #define cpu_getstack(td) ((td)->td_frame->fixreg[1])
110 #define cpu_spinwait() __asm __volatile("or 27,27,27") /* yield */
116 extern void enter_idle_powerx(void);
117 extern uint64_t can_wakeup;
121 void cpu_reset(void);
122 void cpu_sleep(void);
123 void flush_disable_caches(void);
124 void fork_trampoline(void);
127 #endif /* _MACHINE_CPU_H_ */