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 2018 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 extern void patch_sse(void);
  59 extern void patch_sse2(void);
  60 #endif
  61 
  62 extern void patch_xsave(void);
  63 extern kmem_cache_t *fpsave_cachep;
  64 
  65 extern void cli(void);
  66 extern void sti(void);
  67 
  68 extern void tenmicrosec(void);
  69 
  70 extern void restore_int_flag(ulong_t);
  71 extern void intr_restore(ulong_t);
  72 extern ulong_t clear_int_flag(void);
  73 extern ulong_t intr_clear(void);
  74 extern ulong_t getflags(void);
  75 extern int interrupts_enabled(void);
  76 
  77 extern void int3(void);
  78 extern void int18(void);
  79 extern void int20(void);
  80 extern void int_cmci(void);
  81 
  82 #if defined(__amd64)
  83 extern void sys_syscall(), tr_sys_syscall();
  84 extern void sys_syscall32(), tr_sys_syscall32();
  85 extern void sys_lcall32();
  86 extern void sys_syscall_int();
  87 extern void tr_sys_syscall_int();
  88 extern void brand_sys_syscall(), tr_brand_sys_syscall();
  89 extern void brand_sys_syscall32(), tr_brand_sys_syscall32();
  90 extern void brand_sys_syscall_int(), tr_brand_sys_syscall_int();
  91 extern int update_sregs();
  92 extern void reset_sregs();
  93 #elif defined(__i386)
  94 extern void sys_call();
  95 extern void tr_sys_call();
  96 extern void brand_sys_call();
  97 #endif
  98 extern void sys_sysenter();
  99 extern void tr_sys_sysenter();
 100 extern void _sys_sysenter_post_swapgs();
 101 extern void brand_sys_sysenter();
 102 extern void tr_brand_sys_sysenter();
 103 extern void _brand_sys_sysenter_post_swapgs();
 104 
 105 extern void dosyscall(void);
 106 
 107 extern void bind_hwcap(void);
 108 
 109 extern uint16_t inw(int port);
 110 extern uint32_t inl(int port);
 111 extern void outw(int port, uint16_t value);
 112 extern void outl(int port, uint32_t value);
 113 
 114 extern void pc_reset(void) __NORETURN;
 115 extern void efi_reset(void) __NORETURN;
 116 extern void reset(void) __NORETURN;
 117 extern int goany(void);
 118 
 119 extern void setgregs(klwp_t *, gregset_t);
 120 extern void getgregs(klwp_t *, gregset_t);
 121 extern void setfpregs(klwp_t *, fpregset_t *);
 122 extern void getfpregs(klwp_t *, fpregset_t *);
 123 
 124 #if defined(_SYSCALL32_IMPL)
 125 extern void getgregs32(klwp_t *, gregset32_t);
 126 extern void setfpregs32(klwp_t *, fpregset32_t *);
 127 extern void getfpregs32(klwp_t *, fpregset32_t *);
 128 #endif
 129 
 130 struct fpu_ctx;
 131 
 132 extern void fp_free(struct fpu_ctx *, int);
 133 extern void fp_save(struct fpu_ctx *);
 134 extern void fp_restore(struct fpu_ctx *);
 135 
 136 extern int fpu_pentium_fdivbug;
 137 
 138 extern void sep_save(void *);
 139 extern void sep_restore(void *);
 140 
 141 extern void brand_interpositioning_enable(void);
 142 extern void brand_interpositioning_disable(void);
 143 
 144 struct regs;
 145 
 146 extern int instr_size(struct regs *, caddr_t *, enum seg_rw);
 147 
 148 extern int enable_cbcp; /* patchable in /etc/system */
 149 
 150 extern uint_t cpu_hwcap_flags;
 151 extern uint_t cpu_freq;
 152 extern uint64_t cpu_freq_hz;
 153 
 154 extern int use_sse_pagecopy;
 155 extern int use_sse_pagezero;
 156 extern int use_sse_copy;
 157 
 158 extern caddr_t i86devmap(pfn_t, pgcnt_t, uint_t);
 159 extern page_t *page_numtopp_alloc(pfn_t pfnum);
 160 
 161 extern void hwblkclr(void *, size_t);
 162 extern void hwblkpagecopy(const void *, void *);
 163 extern void page_copy_no_xmm(void *dst, void *src);
 164 extern void block_zero_no_xmm(void *dst, int len);
 165 #define BLOCKZEROALIGN (4 * sizeof (void *))
 166 
 167 extern void (*kcpc_hw_enable_cpc_intr)(void);
 168 
 169 extern void init_desctbls(void);
 170 
 171 extern user_desc_t *cpu_get_gdt(void);
 172 
 173 extern void switch_sp_and_call(void *, void (*)(uint_t, uint_t), uint_t,
 174         uint_t);
 175 extern hrtime_t (*gethrtimef)(void);
 176 extern hrtime_t (*gethrtimeunscaledf)(void);
 177 extern void (*scalehrtimef)(hrtime_t *);
 178 extern uint64_t (*unscalehrtimef)(hrtime_t);
 179 extern void (*gethrestimef)(timestruc_t *);
 180 
 181 extern void av_dispatch_softvect(uint_t);
 182 extern void av_dispatch_autovect(uint_t);
 183 extern uint_t atomic_btr32(uint32_t *, uint_t);
 184 extern uint_t bsrw_insn(uint16_t);
 185 extern int sys_rtt_common(struct regs *);
 186 extern void fakesoftint(void);
 187 
 188 extern void *plat_traceback(void *);
 189 
 190 /*
 191  * The following two macros are the four byte instruction sequence of stac, ret
 192  * and clac, ret. These are used in startup_smap() as a part of properly setting
 193  * up the valid instructions. For more information on SMAP, see
 194  * uts/intel/ia32/ml/copy.s.
 195  */
 196 #define SMAP_CLAC_INSTR 0xc3ca010f
 197 #define SMAP_STAC_INSTR 0xc3cb010f
 198 extern void smap_disable(void);
 199 extern void smap_enable(void);
 200 
 201 #if defined(__xpv)
 202 extern void xen_init_callbacks(void);
 203 extern void xen_set_callback(void (*)(void), uint_t, uint_t);
 204 extern void xen_printf(const char *, ...);
 205 #define cpr_dprintf xen_printf
 206 extern int xpv_panicking;
 207 #define IN_XPV_PANIC() (xpv_panicking > 0)
 208 #else
 209 extern void setup_mca(void);
 210 extern void pat_sync(void);
 211 extern void patch_tsc_read(int);
 212 #if defined(__amd64) && !defined(__xpv)
 213 extern void patch_memops(uint_t);
 214 #endif  /* defined(__amd64) && !defined(__xpv) */
 215 extern void setup_xfem(void);
 216 #define cpr_dprintf prom_printf
 217 #define IN_XPV_PANIC() (__lintzero)
 218 #endif
 219 
 220 #endif /* _KERNEL */
 221 
 222 #if defined(_KERNEL) || defined(_BOOT)
 223 extern uint8_t inb(int port);
 224 extern void outb(int port, uint8_t value);
 225 #endif
 226 
 227 #ifdef __cplusplus
 228 }
 229 #endif
 230 
 231 #endif  /* _SYS_ARCHSYSTM_H */