2 * Copyright (c) 1990 The Regents of the University of California.
3 * Copyright (c) 2014 The FreeBSD Foundation
6 * This code is derived from software contributed to Berkeley by
9 * Portions of this software were developed by Andrew Turner
10 * under sponsorship from the FreeBSD Foundation
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * from: @(#)cpu.h 5.4 (Berkeley) 5/9/91
37 * from: FreeBSD: src/sys/i386/include/cpu.h,v 1.62 2001/06/29
41 #ifndef _MACHINE_CPU_H_
42 #define _MACHINE_CPU_H_
44 #include <machine/atomic.h>
45 #include <machine/frame.h>
46 #include <machine/armreg.h>
48 #define TRAPF_PC(tfp) ((tfp)->tf_lr)
49 #define TRAPF_USERMODE(tfp) (((tfp)->tf_elr & (1ul << 63)) == 0)
51 #define cpu_getstack(td) ((td)->td_frame->tf_sp)
52 #define cpu_setstack(td, sp) ((td)->td_frame->tf_sp = (sp))
53 #define cpu_spinwait() /* nothing */
55 /* Extract CPU affinity levels 0-3 */
56 #define CPU_AFF0(mpidr) (u_int)(((mpidr) >> 0) & 0xff)
57 #define CPU_AFF1(mpidr) (u_int)(((mpidr) >> 8) & 0xff)
58 #define CPU_AFF2(mpidr) (u_int)(((mpidr) >> 16) & 0xff)
59 #define CPU_AFF3(mpidr) (u_int)(((mpidr) >> 32) & 0xff)
60 #define CPU_AFF_MASK 0xff00ffffffUL /* Mask affinity fields in MPIDR_EL1 */
64 #define CPU_IMPL_ARM 0x41
65 #define CPU_IMPL_BROADCOM 0x42
66 #define CPU_IMPL_CAVIUM 0x43
67 #define CPU_IMPL_DEC 0x44
68 #define CPU_IMPL_INFINEON 0x49
69 #define CPU_IMPL_FREESCALE 0x4D
70 #define CPU_IMPL_NVIDIA 0x4E
71 #define CPU_IMPL_APM 0x50
72 #define CPU_IMPL_QUALCOMM 0x51
73 #define CPU_IMPL_MARVELL 0x56
74 #define CPU_IMPL_INTEL 0x69
76 #define CPU_PART_THUNDER 0x0A1
77 #define CPU_PART_FOUNDATION 0xD00
78 #define CPU_PART_CORTEX_A53 0xD03
79 #define CPU_PART_CORTEX_A57 0xD07
81 #define CPU_REV_THUNDER_1_0 0x00
82 #define CPU_REV_THUNDER_1_1 0x01
84 #define CPU_IMPL(midr) (((midr) >> 24) & 0xff)
85 #define CPU_PART(midr) (((midr) >> 4) & 0xfff)
86 #define CPU_VAR(midr) (((midr) >> 20) & 0xf)
87 #define CPU_REV(midr) (((midr) >> 0) & 0xf)
89 #define CPU_IMPL_TO_MIDR(val) (((val) & 0xff) << 24)
90 #define CPU_PART_TO_MIDR(val) (((val) & 0xfff) << 4)
91 #define CPU_VAR_TO_MIDR(val) (((val) & 0xf) << 20)
92 #define CPU_REV_TO_MIDR(val) (((val) & 0xf) << 0)
94 #define CPU_IMPL_MASK (0xff << 24)
95 #define CPU_PART_MASK (0xfff << 4)
96 #define CPU_VAR_MASK (0xf << 20)
97 #define CPU_REV_MASK (0xf << 0)
99 #define CPU_ID_RAW(impl, part, var, rev) \
100 (CPU_IMPL_TO_MIDR((impl)) | \
101 CPU_PART_TO_MIDR((part)) | CPU_VAR_TO_MIDR((var)) | \
102 CPU_REV_TO_MIDR((rev)))
104 #define CPU_MATCH(mask, impl, part, var, rev) \
105 (((mask) & PCPU_GET(midr)) == \
106 ((mask) & CPU_ID_RAW((impl), (part), (var), (rev))))
108 #define CPU_MATCH_RAW(mask, devid) \
109 (((mask) & PCPU_GET(midr)) == ((mask) & (devid)))
112 * Chip-specific errata. This defines are intended to be
113 * booleans used within if statements. When an appropriate
114 * kernel option is disabled, these defines must be defined
115 * as 0 to allow the compiler to remove a dead code thus
116 * produce better optimized kernel image.
121 * Revision(s): Pass 1.0, Pass 1.1
123 #ifdef THUNDERX_PASS_1_1_ERRATA
124 #define CPU_MATCH_ERRATA_CAVIUM_THUNDER_1_1 \
125 (CPU_MATCH(CPU_IMPL_MASK | CPU_PART_MASK | CPU_REV_MASK, \
126 CPU_IMPL_CAVIUM, CPU_PART_THUNDER, 0, CPU_REV_THUNDER_1_0) || \
127 CPU_MATCH(CPU_IMPL_MASK | CPU_PART_MASK | CPU_REV_MASK, \
128 CPU_IMPL_CAVIUM, CPU_PART_THUNDER, 0, CPU_REV_THUNDER_1_1))
130 #define CPU_MATCH_ERRATA_CAVIUM_THUNDER_1_1 0
137 extern uint64_t __cpu_affinity[];
139 void cpu_halt(void) __dead2;
140 void cpu_reset(void) __dead2;
141 void fork_trampoline(void);
142 void identify_cpu(void);
143 void swi_vm(void *v);
145 #define CPU_AFFINITY(cpu) __cpu_affinity[(cpu)]
147 static __inline uint64_t
152 ret = READ_SPECIALREG(cntvct_el0);
157 #define ADDRESS_TRANSLATE_FUNC(stage) \
158 static inline uint64_t \
159 arm64_address_translate_ ##stage (uint64_t addr) \
164 "at " __STRING(stage) ", %1 \n" \
165 "mrs %0, par_el1" : "=r"(ret) : "r"(addr)); \
170 ADDRESS_TRANSLATE_FUNC(s1e0r)
171 ADDRESS_TRANSLATE_FUNC(s1e0w)
172 ADDRESS_TRANSLATE_FUNC(s1e1r)
173 ADDRESS_TRANSLATE_FUNC(s1e1w)
177 #endif /* !_MACHINE_CPU_H_ */