b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync/*
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * Memory range attribute operations, peformed on /dev/mem
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync *
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * $FreeBSD: src/sys/sys/memrange.h,v 1.4 1999/12/29 04:24:44 peter Exp $
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync/* $XFree86$ */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#ifdef HAVE_XORG_CONFIG_H
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#include <xorg-config.h>
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#endif
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#ifndef _MEMRANGE_H
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define _MEMRANGE_H
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync/* Memory range attributes */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_UNCACHEABLE (1<<0) /* region not cached */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_WRITECOMBINE (1<<1) /* region supports "write combine"
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync * action */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_WRITETHROUGH (1<<2) /* write-through cached */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_WRITEBACK (1<<3) /* write-back cached */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_WRITEPROTECT (1<<4) /* read-only region */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_ATTRMASK (0x00ffffff)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_FIXBASE (1<<24) /* fixed base */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_FIXLEN (1<<25) /* fixed length */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_FIRMWARE (1<<26) /* set by firmware (XXX not useful?) */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_ACTIVE (1<<27) /* currently active */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_BOGUS (1<<28) /* we don't like it */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_FIXACTIVE (1<<29) /* can't be turned off */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MDF_BUSY (1<<30) /* range is in use */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncstruct mem_range_desc {
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync u_int64_t mr_base;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync u_int64_t mr_len;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int mr_flags;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync char mr_owner[8];
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync};
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncstruct mem_range_op {
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync struct mem_range_desc *mo_desc;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int mo_arg[2];
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MEMRANGE_SET_UPDATE 0
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MEMRANGE_SET_REMOVE 1
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync /* XXX want a flag that says "set and undo when I exit" */
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync};
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MEMRANGE_GET _IOWR('m', 50, struct mem_range_op)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#define MEMRANGE_SET _IOW('m', 51, struct mem_range_op)
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#ifdef _KERNEL
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncstruct mem_range_softc;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncstruct mem_range_ops {
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync void (*init) __P((struct mem_range_softc * sc));
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int (*set) __P((struct mem_range_softc * sc, struct mem_range_desc * mrd, int *arg));
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync void (*initAP) __P((struct mem_range_softc * sc));
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync};
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncstruct mem_range_softc {
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync struct mem_range_ops *mr_op;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int mr_cap;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync int mr_ndesc;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync struct mem_range_desc *mr_desc;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync};
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncextern struct mem_range_softc mem_range_softc;
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncextern int mem_range_attr_get __P((struct mem_range_desc * mrd, int *arg));
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncextern int mem_range_attr_set __P((struct mem_range_desc * mrd, int *arg));
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsyncextern void mem_range_AP_init __P((void));
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#endif
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync
b8e299dddd091ae24e0c08c45d91b8f937bd14d2vboxsync#endif