freebsd-nq/sys/ia64/include/md_var.h
Marcel Moolenaar c94018bcd8 o Deal with unmapped PBVM in the alternate instruction and data TLB fault
handlers.
o   Put the IVT in its own section and keep the supporting code close.
o   Make sure the VHPT is sized so that it can be mapped using a single
    translation.
o   Map the PAL code and VHPT with a translation that has the right size.
    Assume the platform has a PAL code size that can be mapped with a
    single translations.
o   Pass the pointer to the bootinfo structure as an argument to ia64_init().
o   Get rid of LOG2_ID_PAGE_SIZE and IA64_ID_PAGE_SIZE. It was used to map
    the regions 6 & 7 and was as large as possible. The problem is that we
    can't support memory attributes easily if the granuratity is not a page.
    We need to support memory attributes because the new USB stack violates
    the BUS_DMA(9) interface.
o   Update some comments...

NOTE:	this is broken for SMP kernels, because the AP startup code hasn't
	been updated yet.
2011-03-14 05:29:45 +00:00

112 lines
3.6 KiB
C

/*-
* Copyright (c) 1998 Doug Rabson
* 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_MD_VAR_H_
#define _MACHINE_MD_VAR_H_
/*
* Miscellaneous machine-dependent declarations.
*/
struct ia64_fdesc {
uint64_t func;
uint64_t gp;
};
#define FDESC_FUNC(fn) (((struct ia64_fdesc *) fn)->func)
#define FDESC_GP(fn) (((struct ia64_fdesc *) fn)->gp)
/* Convenience macros to decompose CFM & ar.pfs. */
#define IA64_CFM_SOF(x) ((x) & 0x7f)
#define IA64_CFM_SOL(x) (((x) >> 7) & 0x7f)
#define IA64_CFM_SOR(x) (((x) >> 14) & 0x0f)
#define IA64_CFM_RRB_GR(x) (((x) >> 18) & 0x7f)
#define IA64_CFM_RRB_FR(x) (((x) >> 25) & 0x7f)
#define IA64_CFM_RRB_PR(x) (((x) >> 32) & 0x3f)
/* Convenience function (inline) to adjust backingstore pointers. */
static __inline uint64_t
ia64_bsp_adjust(uint64_t bsp, int nslots)
{
int bias = ((unsigned int)bsp & 0x1f8) >> 3;
nslots += (nslots + bias + 63*8) / 63 - 8;
return bsp + (nslots << 3);
}
#ifdef _KERNEL
struct _special;
struct thread;
struct trapframe;
/*
* Return value from ia64_init. Describes stack to switch to.
*/
struct ia64_init_return {
uint64_t bspstore;
uint64_t sp;
};
extern uint64_t ia64_lapic_addr;
extern long Maxmem;
extern u_int busdma_swi_pending;
void *acpi_find_table(const char *sig);
void busdma_swi(void);
int copyout_regstack(struct thread *, uint64_t *, uint64_t *);
void cpu_mp_add(u_int, u_int, u_int);
int do_ast(struct trapframe *);
void ia32_trap(int, struct trapframe *);
int ia64_count_cpus(void);
int ia64_emulate(struct trapframe *, struct thread *);
int ia64_flush_dirty(struct thread *, struct _special *);
uint64_t ia64_get_hcdp(void);
int ia64_highfp_drop(struct thread *);
int ia64_highfp_enable(struct thread *, struct trapframe *);
int ia64_highfp_save(struct thread *);
int ia64_highfp_save_ipi(void);
struct ia64_init_return ia64_init(void);
u_int ia64_itc_freq(void);
void ia64_probe_sapics(void);
void ia64_sync_icache(vm_offset_t, vm_size_t);
void interrupt(struct trapframe *);
void map_gateway_page(void);
void map_pal_code(void);
void map_vhpt(uintptr_t);
void os_boot_rendez(void);
void os_mca(void);
int syscall(struct trapframe *);
void trap(int, struct trapframe *);
void trap_panic(int, struct trapframe *);
int unaligned_fixup(struct trapframe *, struct thread *);
#endif /* _KERNEL */
#endif /* !_MACHINE_MD_VAR_H_ */