/*-
* Copyright (c) 2014 Andrew Turner
* 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.
*
* 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 _MACHINE_CPUFUNC_H_
#define _MACHINE_CPUFUNC_H_
static __inline void
breakpoint(void)
{
__asm("brk #0");
}
#ifdef _KERNEL
#include <machine/armreg.h>
void pan_enable(void);
static __inline register_t
dbg_disable(void)
{
uint32_t ret;
__asm __volatile(
"mrs %x0, daif \n"
"msr daifset, #8 \n"
: "=&r" (ret));
return (ret);
}
static __inline void
dbg_enable(void)
{
__asm __volatile("msr daifclr, #8");
}
static __inline register_t
intr_disable(void)
{
/* DAIF is a 32-bit register */
uint32_t ret;
__asm __volatile(
"mrs %x0, daif \n"
"msr daifset, #2 \n"
: "=&r" (ret));
return (ret);
}
static __inline void
intr_restore(register_t s)
{
WRITE_SPECIALREG(daif, s);
}
static __inline void
intr_enable(void)
{
__asm __volatile("msr daifclr, #2");
}
static __inline register_t
get_midr(void)
{
uint64_t midr;
midr = READ_SPECIALREG(midr_el1);
return (midr);
}
static __inline register_t
get_mpidr(void)
{
uint64_t mpidr;
mpidr = READ_SPECIALREG(mpidr_el1);
return (mpidr);
}
static __inline void
clrex(void)
{
/*
* Ensure compiler barrier, otherwise the monitor clear might
* occur too late for us ?
*/
__asm __volatile("clrex" : : : "memory");
}
extern int64_t dcache_line_size;
extern int64_t icache_line_size;
extern int64_t idcache_line_size;
extern int64_t dczva_line_size;
#define cpu_nullop() arm64_nullop()
#define cpufunc_nullop() arm64_nullop()
#define cpu_setttb(a) arm64_setttb(a)
#define cpu_tlb_flushID() arm64_tlb_flushID()
#define cpu_dcache_wbinv_range(a, s) arm64_dcache_wbinv_range((a), (s))
#define cpu_dcache_inv_range(a, s) arm64_dcache_inv_range((a), (s))
#define cpu_dcache_wb_range(a, s) arm64_dcache_wb_range((a), (s))
#define cpu_idcache_wbinv_range(a, s) arm64_idcache_wbinv_range((a), (s))
#define cpu_icache_sync_range(a, s) arm64_icache_sync_range((a), (s))
void arm64_nullop(void);
void arm64_setttb(vm_offset_t);
void arm64_tlb_flushID(void);
void arm64_tlb_flushID_SE(vm_offset_t);
void arm64_icache_sync_range(vm_offset_t, vm_size_t);
void arm64_idcache_wbinv_range(vm_offset_t, vm_size_t);
void arm64_dcache_wbinv_range(vm_offset_t, vm_size_t);
void arm64_dcache_inv_range(vm_offset_t, vm_size_t);
void arm64_dcache_wb_range(vm_offset_t, vm_size_t);
#endif /* _KERNEL */
#endif /* _MACHINE_CPUFUNC_H_ */
