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      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 2009 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     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 iommu_cpu_nop(void);
     52 extern void clflush_insn(caddr_t addr);
     53 extern void mfence_insn(void);
     54 
     55 #if defined(__i386)
     56 extern uint16_t getgs(void);
     57 extern void setgs(uint16_t);
     58 
     59 extern void patch_sse(void);
     60 extern void patch_sse2(void);
     61 #endif
     62 
     63 extern void cli(void);
     64 extern void sti(void);
     65 
     66 extern void tenmicrosec(void);
     67 
     68 extern void restore_int_flag(ulong_t);
     69 extern void intr_restore(ulong_t);
     70 extern ulong_t clear_int_flag(void);
     71 extern ulong_t intr_clear(void);
     72 extern ulong_t getflags(void);
     73 extern int interrupts_enabled(void);
     74 
     75 extern void int3(void);
     76 extern void int18(void);
     77 extern void int20(void);
     78 extern void int_cmci(void);
     79 
     80 #if defined(__amd64)
     81 extern void sys_syscall();
     82 extern void sys_syscall32();
     83 extern void sys_lcall32();
     84 extern void sys_syscall_int();
     85 extern void brand_sys_syscall();
     86 extern void brand_sys_syscall32();
     87 extern void 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 brand_sys_call();
     93 #endif
     94 extern void sys_sysenter();
     95 extern void _sys_sysenter_post_swapgs();
     96 extern void brand_sys_sysenter();
     97 extern void _brand_sys_sysenter_post_swapgs();
     98 
     99 extern void dosyscall(void);
    100 
    101 extern void bind_hwcap(void);
    102 
    103 extern uint16_t inw(int port);
    104 extern uint32_t inl(int port);
    105 extern void outw(int port, uint16_t value);
    106 extern void outl(int port, uint32_t value);
    107 
    108 extern void pc_reset(void) __NORETURN;
    109 extern void efi_reset(void) __NORETURN;
    110 extern void reset(void) __NORETURN;
    111 extern int goany(void);
    112 
    113 extern void setgregs(klwp_t *, gregset_t);
    114 extern void getgregs(klwp_t *, gregset_t);
    115 extern void setfpregs(klwp_t *, fpregset_t *);
    116 extern void getfpregs(klwp_t *, fpregset_t *);
    117 
    118 #if defined(_SYSCALL32_IMPL)
    119 extern void getgregs32(klwp_t *, gregset32_t);
    120 extern void setfpregs32(klwp_t *, fpregset32_t *);
    121 extern void getfpregs32(klwp_t *, fpregset32_t *);
    122 #endif
    123 
    124 struct fpu_ctx;
    125 
    126 extern void fp_free(struct fpu_ctx *, int);
    127 extern void fp_save(struct fpu_ctx *);
    128 extern void fp_restore(struct fpu_ctx *);
    129 
    130 extern int fpu_pentium_fdivbug;
    131 
    132 extern void sep_save(void *);
    133 extern void sep_restore(void *);
    134 
    135 extern void brand_interpositioning_enable(void);
    136 extern void brand_interpositioning_disable(void);
    137 
    138 struct regs;
    139 
    140 extern int instr_size(struct regs *, caddr_t *, enum seg_rw);
    141 
    142 extern int enable_cbcp; /* patchable in /etc/system */
    143 
    144 extern uint_t cpu_hwcap_flags;
    145 extern uint_t cpu_freq;
    146 extern uint64_t cpu_freq_hz;
    147 
    148 extern int use_sse_pagecopy;
    149 extern int use_sse_pagezero;
    150 extern int use_sse_copy;
    151 
    152 extern caddr_t i86devmap(pfn_t, pgcnt_t, uint_t);
    153 extern page_t *page_numtopp_alloc(pfn_t pfnum);
    154 
    155 extern void hwblkclr(void *, size_t);
    156 extern void hwblkpagecopy(const void *, void *);
    157 extern void page_copy_no_xmm(void *dst, void *src);
    158 extern void block_zero_no_xmm(void *dst, int len);
    159 #define	BLOCKZEROALIGN (4 * sizeof (void *))
    160 
    161 extern void (*kcpc_hw_enable_cpc_intr)(void);
    162 
    163 extern void init_desctbls(void);
    164 
    165 extern user_desc_t *cpu_get_gdt(void);
    166 
    167 extern void switch_sp_and_call(void *, void (*)(uint_t, uint_t), uint_t,
    168 	uint_t);
    169 extern hrtime_t (*gethrtimef)(void);
    170 extern hrtime_t (*gethrtimeunscaledf)(void);
    171 extern void (*scalehrtimef)(hrtime_t *);
    172 extern uint64_t (*unscalehrtimef)(hrtime_t);
    173 extern void (*gethrestimef)(timestruc_t *);
    174 
    175 extern void av_dispatch_softvect(uint_t);
    176 extern void av_dispatch_autovect(uint_t);
    177 extern uint_t atomic_btr32(uint32_t *, uint_t);
    178 extern uint_t bsrw_insn(uint16_t);
    179 extern int sys_rtt_common(struct regs *);
    180 extern void fakesoftint(void);
    181 
    182 extern void *plat_traceback(void *);
    183 
    184 #if defined(__xpv)
    185 extern void xen_init_callbacks(void);
    186 extern void xen_set_callback(void (*)(void), uint_t, uint_t);
    187 extern void xen_printf(const char *, ...);
    188 #define	cpr_dprintf xen_printf
    189 extern int xpv_panicking;
    190 #define	IN_XPV_PANIC() (xpv_panicking > 0)
    191 #else
    192 extern void setup_mca(void);
    193 extern void pat_sync(void);
    194 extern void patch_tsc_read(int);
    195 #if defined(__amd64) && !defined(__xpv)
    196 extern void patch_memops(uint_t);
    197 #endif	/* defined(__amd64) && !defined(__xpv) */
    198 #define	cpr_dprintf prom_printf
    199 #define	IN_XPV_PANIC() (__lintzero)
    200 #endif
    201 
    202 #endif /* _KERNEL */
    203 
    204 #if defined(_KERNEL) || defined(_BOOT)
    205 extern uint8_t inb(int port);
    206 extern void outb(int port, uint8_t value);
    207 #endif
    208 
    209 #ifdef __cplusplus
    210 }
    211 #endif
    212 
    213 #endif	/* _SYS_ARCHSYSTM_H */
    214