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/*-
* Copyright (c) 2001 Jake Burkholder.
* 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_SMP_H_
#define _MACHINE_SMP_H_
#include <machine/intr_machdep.h>
#define CPU_INITING 1
#define CPU_INITED 2
#define CPU_REJECT 3
#define CPU_STARTING 4
#define CPU_STARTED 5
#define CPU_BOOTSTRAPING 6
#define CPU_BOOTSTRAPPED 7
#ifndef LOCORE
#define IDR_BUSY (1<<0)
#define IDR_NACK (1<<1)
#define IPI_AST PIL_AST
#define IPI_RENDEZVOUS PIL_RENDEZVOUS
#define IPI_STOP PIL_STOP
#define IPI_RETRIES 100
struct cpu_start_args {
u_int csa_mid;
u_int csa_state;
u_long csa_data;
vm_offset_t csa_va;
};
struct ipi_level_args {
u_int ila_count;
u_int ila_level;
};
struct ipi_tlb_args {
u_int ita_count;
u_long ita_tlb;
u_long ita_ctx;
u_long ita_start;
u_long ita_end;
};
#define ita_va ita_start
struct pcpu;
void cpu_mp_bootstrap(struct pcpu *pc);
void cpu_ipi_selected(u_int cpus, u_long d0, u_long d1, u_long d2);
void cpu_ipi_send(u_int mid, u_long d0, u_long d1, u_long d2);
void ipi_selected(u_int cpus, u_int ipi);
void ipi_all(u_int ipi);
void ipi_all_but_self(u_int ipi);
struct ipi_level_args ipi_level_args;
struct ipi_tlb_args ipi_tlb_args;
extern int mp_ncpus;
extern char tl_ipi_level[];
extern char tl_ipi_test[];
extern char tl_ipi_tlb_context_demap[];
extern char tl_ipi_tlb_page_demap[];
extern char tl_ipi_tlb_range_demap[];
#ifdef SMP
static __inline void *
ipi_tlb_context_demap(u_int ctx)
{
struct ipi_tlb_args *ita;
if (mp_ncpus == 1)
return (NULL);
ita = &ipi_tlb_args;
ita->ita_count = mp_ncpus;
ita->ita_ctx = ctx;
cpu_ipi_selected(PCPU_GET(other_cpus), 0,
(u_long)tl_ipi_tlb_context_demap, (u_long)ita);
return (&ita->ita_count);
}
static __inline void *
ipi_tlb_page_demap(u_int tlb, u_int ctx, vm_offset_t va)
{
struct ipi_tlb_args *ita;
if (mp_ncpus == 1)
return (NULL);
ita = &ipi_tlb_args;
ita->ita_count = mp_ncpus;
ita->ita_tlb = tlb;
ita->ita_ctx = ctx;
ita->ita_va = va;
cpu_ipi_selected(PCPU_GET(other_cpus), 0,
(u_long)tl_ipi_tlb_page_demap, (u_long)ita);
return (&ita->ita_count);
}
static __inline void *
ipi_tlb_range_demap(u_int ctx, vm_offset_t start, vm_offset_t end)
{
struct ipi_tlb_args *ita;
if (mp_ncpus == 1)
return (NULL);
ita = &ipi_tlb_args;
ita->ita_count = mp_ncpus;
ita->ita_ctx = ctx;
ita->ita_start = start;
ita->ita_end = end;
cpu_ipi_selected(PCPU_GET(other_cpus), 0,
(u_long)tl_ipi_tlb_range_demap, (u_long)ita);
return (&ita->ita_count);
}
static __inline void
ipi_wait(void *cookie)
{
u_int *count;
if ((count = cookie) != NULL) {
atomic_subtract_int(count, 1);
while (*count != 0)
membar(LoadStore);
}
}
#else
static __inline void *
ipi_tlb_context_demap(u_int ctx)
{
return (NULL);
}
static __inline void *
ipi_tlb_page_demap(u_int tlb, u_int ctx, vm_offset_t va)
{
return (NULL);
}
static __inline void *
ipi_tlb_range_demap(u_int ctx, vm_offset_t start, vm_offset_t end)
{
return (NULL);
}
static __inline void
ipi_wait(void *cookie)
{
}
#endif /* SMP */
#endif /* !LOCORE */
#endif /* !_MACHINE_SMP_H_ */
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