1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright (c) 1993, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Copyright 2019 Joyent, Inc.
  25  */
  26 
  27 #ifndef _SYS_ARCHSYSTM_H
  28 #define _SYS_ARCHSYSTM_H
  29 
  30 /*
  31  * A selection of ISA-dependent interfaces
  32  */
  33 
  34 #include <vm/seg_enum.h>
  35 #include <vm/page.h>
  36 
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif
  40 
  41 #ifdef _KERNEL
  42 
  43 extern greg_t getfp(void);
  44 extern int getpil(void);
  45 
  46 extern ulong_t getcr0(void);
  47 extern void setcr0(ulong_t);
  48 extern ulong_t getcr8(void);
  49 extern void setcr8(ulong_t);
  50 extern ulong_t getcr2(void);
  51 extern void clflush_insn(caddr_t addr);
  52 extern void mfence_insn(void);
  53 
  54 #if defined(__i386)
  55 extern uint16_t getgs(void);
  56 extern void setgs(uint16_t);
  57 
  58 #endif
  59 
  60 extern kmem_cache_t *fpsave_cachep;
  61 
  62 extern void cli(void);
  63 extern void sti(void);
  64 
  65 extern void tenmicrosec(void);
  66 
  67 extern void restore_int_flag(ulong_t);
  68 extern void intr_restore(ulong_t);
  69 extern ulong_t clear_int_flag(void);
  70 extern ulong_t intr_clear(void);
  71 extern ulong_t getflags(void);
  72 extern int interrupts_enabled(void);
  73 
  74 extern void int3(void);
  75 extern void int18(void);
  76 extern void int20(void);
  77 extern void int_cmci(void);
  78 
  79 #if defined(__amd64)
  80 extern void sys_syscall(), tr_sys_syscall();
  81 extern void sys_syscall32(), tr_sys_syscall32();
  82 extern void sys_lcall32();
  83 extern void sys_syscall_int();
  84 extern void tr_sys_syscall_int();
  85 extern void brand_sys_syscall(), tr_brand_sys_syscall();
  86 extern void brand_sys_syscall32(), tr_brand_sys_syscall32();
  87 extern void brand_sys_syscall_int(), tr_brand_sys_syscall_int();
  88 extern int update_sregs();
  89 extern void reset_sregs();
  90 #elif defined(__i386)
  91 extern void sys_call();
  92 extern void tr_sys_call();
  93 extern void brand_sys_call();
  94 #endif
  95 extern void sys_sysenter();
  96 extern void tr_sys_sysenter();
  97 extern void brand_sys_sysenter();
  98 extern void tr_brand_sys_sysenter();
  99 
 100 extern void dosyscall(void);
 101 
 102 extern void bind_hwcap(void);
 103 
 104 extern uint16_t inw(int port);
 105 extern uint32_t inl(int port);
 106 extern void outw(int port, uint16_t value);
 107 extern void outl(int port, uint32_t value);
 108 
 109 extern void pc_reset(void) __NORETURN;
 110 extern void efi_reset(void) __NORETURN;
 111 extern void reset(void) __NORETURN;
 112 extern int goany(void);
 113 
 114 extern void setgregs(klwp_t *, gregset_t);
 115 extern void getgregs(klwp_t *, gregset_t);
 116 extern void setfpregs(klwp_t *, fpregset_t *);
 117 extern void getfpregs(klwp_t *, fpregset_t *);
 118 
 119 #if defined(_SYSCALL32_IMPL)
 120 extern void getgregs32(klwp_t *, gregset32_t);
 121 extern void setfpregs32(klwp_t *, fpregset32_t *);
 122 extern void getfpregs32(klwp_t *, fpregset32_t *);
 123 #endif
 124 
 125 struct fpu_ctx;
 126 
 127 extern void fp_free(struct fpu_ctx *, int);
 128 extern void fp_save(struct fpu_ctx *);
 129 extern void fp_restore(struct fpu_ctx *);
 130 
 131 extern int fpu_pentium_fdivbug;
 132 
 133 extern void sep_save(void *);
 134 extern void sep_restore(void *);
 135 
 136 extern void brand_interpositioning_enable(void);
 137 extern void brand_interpositioning_disable(void);
 138 
 139 struct regs;
 140 
 141 extern int instr_size(struct regs *, caddr_t *, enum seg_rw);
 142 
 143 extern int enable_cbcp; /* patchable in /etc/system */
 144 
 145 extern uint_t cpu_hwcap_flags;
 146 extern uint_t cpu_freq;
 147 extern uint64_t cpu_freq_hz;
 148 
 149 extern int use_sse_pagecopy;
 150 extern int use_sse_pagezero;
 151 extern int use_sse_copy;
 152 
 153 extern caddr_t i86devmap(pfn_t, pgcnt_t, uint_t);
 154 extern page_t *page_numtopp_alloc(pfn_t pfnum);
 155 
 156 extern void hwblkclr(void *, size_t);
 157 extern void hwblkpagecopy(const void *, void *);
 158 extern void page_copy_no_xmm(void *dst, void *src);
 159 extern void block_zero_no_xmm(void *dst, int len);
 160 #define BLOCKZEROALIGN (4 * sizeof (void *))
 161 
 162 extern void (*kcpc_hw_enable_cpc_intr)(void);
 163 
 164 extern void init_desctbls(void);
 165 
 166 extern user_desc_t *cpu_get_gdt(void);
 167 
 168 extern void switch_sp_and_call(void *, void (*)(uint_t, uint_t), uint_t,
 169         uint_t);
 170 extern hrtime_t (*gethrtimef)(void);
 171 extern hrtime_t (*gethrtimeunscaledf)(void);
 172 extern void (*scalehrtimef)(hrtime_t *);
 173 extern uint64_t (*unscalehrtimef)(hrtime_t);
 174 extern void (*gethrestimef)(timestruc_t *);
 175 
 176 extern void av_dispatch_softvect(uint_t);
 177 extern void av_dispatch_autovect(uint_t);
 178 extern uint_t atomic_btr32(uint32_t *, uint_t);
 179 extern uint_t bsrw_insn(uint16_t);
 180 extern int sys_rtt_common(struct regs *);
 181 extern void fakesoftint(void);
 182 
 183 extern void *plat_traceback(void *);
 184 
 185 /*
 186  * The following two macros are the four byte instruction sequence of stac, ret
 187  * and clac, ret. These are used in startup_smap() as a part of properly setting
 188  * up the valid instructions. For more information on SMAP, see
 189  * uts/intel/ia32/ml/copy.s.
 190  */
 191 #define SMAP_CLAC_INSTR 0xc3ca010f
 192 #define SMAP_STAC_INSTR 0xc3cb010f
 193 extern void smap_disable(void);
 194 extern void smap_enable(void);
 195 
 196 #if defined(__xpv)
 197 extern void xen_init_callbacks(void);
 198 extern void xen_set_callback(void (*)(void), uint_t, uint_t);
 199 extern void xen_printf(const char *, ...);
 200 #define cpr_dprintf xen_printf
 201 extern int xpv_panicking;
 202 #define IN_XPV_PANIC() (xpv_panicking > 0)
 203 #else
 204 extern void setup_mca(void);
 205 extern void pat_sync(void);
 206 extern void patch_tsc_read(int);
 207 #if defined(__amd64) && !defined(__xpv)
 208 extern void patch_memops(uint_t);
 209 #endif  /* defined(__amd64) && !defined(__xpv) */
 210 extern void setup_xfem(void);
 211 #define cpr_dprintf prom_printf
 212 #define IN_XPV_PANIC() (__lintzero)
 213 #endif
 214 
 215 #endif /* _KERNEL */
 216 
 217 #if defined(_KERNEL) || defined(_BOOT)
 218 extern uint8_t inb(int port);
 219 extern void outb(int port, uint8_t value);
 220 #endif
 221 
 222 #ifdef __cplusplus
 223 }
 224 #endif
 225 
 226 #endif  /* _SYS_ARCHSYSTM_H */