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/*
* Copyright (c) 2008 Kip Macy
* 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 ``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 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 XENVAR_H_
#define XENVAR_H_
#define XBOOTUP 0x1
#define XPMAP 0x2
extern int xendebug_flags;
#ifndef NOXENDEBUG
#define XENPRINTF printk
#else
#define XENPRINTF printf
#endif
#include <machine/xen/features.h>
extern xen_pfn_t *xen_phys_machine;
#if 0
#define TRACE_ENTER XENPRINTF("(file=%s, line=%d) entered %s\n", __FILE__, __LINE__, __FUNCTION__)
#define TRACE_EXIT XENPRINTF("(file=%s, line=%d) exiting %s\n", __FILE__, __LINE__, __FUNCTION__)
#define TRACE_DEBUG(argflags, _f, _a...) \
if (xendebug_flags & argflags) XENPRINTF("(file=%s, line=%d) " _f "\n", __FILE__, __LINE__, ## _a);
#else
#define TRACE_ENTER
#define TRACE_EXIT
#define TRACE_DEBUG(argflags, _f, _a...)
#endif
extern xen_pfn_t *xen_machine_phys;
/* Xen starts physical pages after the 4MB ISA hole -
* FreeBSD doesn't
*/
#undef ADD_ISA_HOLE /* XXX */
#ifdef ADD_ISA_HOLE
#define ISA_INDEX_OFFSET 1024
#define ISA_PDR_OFFSET 1
#else
#define ISA_INDEX_OFFSET 0
#define ISA_PDR_OFFSET 0
#endif
#define PFNTOMFN(i) (xen_phys_machine[((xen_pfn_t)i)])
#define MFNTOPFN(i) (xen_machine_phys[((xen_pfn_t)i)])
#define VTOP(x) ((uintptr_t)(((uint8_t *)(x)) - KERNBASE))
#define PTOV(x) ((x) + KERNBASE)
#define VTOPFN(x) (VTOP(x) >> PAGE_SHIFT)
#define PFNTOV(x) PTOV((vm_paddr_t)(x) << PAGE_SHIFT)
#define VTOMFN(va) (vtomach(va) >> PAGE_SHIFT)
#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
#define phystomach(pa) (PFNTOMFN((pa) >> PAGE_SHIFT) << PAGE_SHIFT)
#define machtophys(ma) (MFNTOPFN((ma) >> PAGE_SHIFT) << PAGE_SHIFT)
void xpq_init(void);
#define BITS_PER_LONG 32
#define NR_CPUS MAX_VIRT_CPUS
#define BITS_TO_LONGS(bits) \
(((bits)+BITS_PER_LONG-1)/BITS_PER_LONG)
#define DECLARE_BITMAP(name,bits) \
unsigned long name[BITS_TO_LONGS(bits)]
typedef struct { DECLARE_BITMAP(bits, NR_CPUS); } xen_cpumask_t;
int xen_create_contiguous_region(vm_page_t pages, int npages);
void xen_destroy_contiguous_region(void * addr, int npages);
#endif
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