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/*-
* Copyright (c) 1995 Bruce D. Evans.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _X86_X86_VAR_H_
#define _X86_X86_VAR_H_
/*
* Miscellaneous machine-dependent declarations.
*/
extern long Maxmem;
extern u_int basemem;
extern int busdma_swi_pending;
extern u_int cpu_exthigh;
extern u_int cpu_feature;
extern u_int cpu_feature2;
extern u_int amd_feature;
extern u_int amd_feature2;
extern u_int amd_pminfo;
extern u_int via_feature_rng;
extern u_int via_feature_xcrypt;
extern u_int cpu_clflush_line_size;
extern u_int cpu_stdext_feature;
extern u_int cpu_stdext_feature2;
extern u_int cpu_stdext_feature3;
extern uint64_t cpu_ia32_arch_caps;
extern u_int cpu_fxsr;
extern u_int cpu_high;
extern u_int cpu_id;
extern u_int cpu_max_ext_state_size;
extern u_int cpu_mxcsr_mask;
extern u_int cpu_procinfo;
extern u_int cpu_procinfo2;
extern char cpu_vendor[];
extern u_int cpu_vendor_id;
extern u_int cpu_mon_mwait_flags;
extern u_int cpu_mon_min_size;
extern u_int cpu_mon_max_size;
extern u_int cpu_maxphyaddr;
extern char ctx_switch_xsave[];
extern u_int hv_high;
extern char hv_vendor[];
extern char kstack[];
extern char sigcode[];
extern int szsigcode;
extern int vm_page_dump_size;
extern int workaround_erratum383;
extern int _udatasel;
extern int _ucodesel;
extern int _ucode32sel;
extern int _ufssel;
extern int _ugssel;
extern int use_xsave;
extern uint64_t xsave_mask;
extern int pti;
struct pcb;
struct thread;
struct reg;
struct fpreg;
struct dbreg;
struct dumperinfo;
struct trapframe;
/*
* The interface type of the interrupt handler entry point cannot be
* expressed in C. Use simplest non-variadic function type as an
* approximation.
*/
typedef void alias_for_inthand_t(void);
/*
* Returns the maximum physical address that can be used with the
* current system.
*/
static __inline vm_paddr_t
cpu_getmaxphyaddr(void)
{
#if defined(__i386__) && !defined(PAE)
return (0xffffffff);
#else
return ((1ULL << cpu_maxphyaddr) - 1);
#endif
}
void *alloc_fpusave(int flags);
void busdma_swi(void);
bool cpu_mwait_usable(void);
void cpu_probe_amdc1e(void);
void cpu_setregs(void);
void dump_add_page(vm_paddr_t);
void dump_drop_page(vm_paddr_t);
void finishidentcpu(void);
void identify_cpu1(void);
void identify_cpu2(void);
void initializecpu(void);
void initializecpucache(void);
bool fix_cpuid(void);
void fillw(int /*u_short*/ pat, void *base, size_t cnt);
int is_physical_memory(vm_paddr_t addr);
int isa_nmi(int cd);
void handle_ibrs_entry(void);
void handle_ibrs_exit(void);
void hw_ibrs_recalculate(void);
void nmi_call_kdb(u_int cpu, u_int type, struct trapframe *frame);
void nmi_call_kdb_smp(u_int type, struct trapframe *frame);
void nmi_handle_intr(u_int type, struct trapframe *frame);
void pagecopy(void *from, void *to);
void printcpuinfo(void);
int pti_get_default(void);
int user_dbreg_trap(void);
int minidumpsys(struct dumperinfo *);
struct pcb *get_pcb_td(struct thread *td);
#endif
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