cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync/*
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * Memory range attribute operations, peformed on /dev/mem
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#ifdef HAVE_XORG_CONFIG_H
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#include <xorg-config.h>
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#endif
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#ifndef _MEMRANGE_H
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define _MEMRANGE_H
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync/* Memory range attributes */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_UNCACHEABLE (1<<0) /* region not cached */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_WRITECOMBINE (1<<1) /* region supports "write combine"
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * action */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_WRITETHROUGH (1<<2) /* write-through cached */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_WRITEBACK (1<<3) /* write-back cached */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_WRITEPROTECT (1<<4) /* read-only region */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_ATTRMASK (0x00ffffff)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_FIXBASE (1<<24) /* fixed base */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_FIXLEN (1<<25) /* fixed length */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_FIRMWARE (1<<26) /* set by firmware (XXX not useful?) */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_ACTIVE (1<<27) /* currently active */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_BOGUS (1<<28) /* we don't like it */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_FIXACTIVE (1<<29) /* can't be turned off */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MDF_BUSY (1<<30) /* range is in use */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncstruct mem_range_desc {
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync u_int64_t mr_base;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync u_int64_t mr_len;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int mr_flags;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync char mr_owner[8];
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync};
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncstruct mem_range_op {
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync struct mem_range_desc *mo_desc;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int mo_arg[2];
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MEMRANGE_SET_UPDATE 0
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MEMRANGE_SET_REMOVE 1
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync /* XXX want a flag that says "set and undo when I exit" */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync};
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MEMRANGE_GET _IOWR('m', 50, struct mem_range_op)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define MEMRANGE_SET _IOW('m', 51, struct mem_range_op)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#ifdef _KERNEL
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncstruct mem_range_softc;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncstruct mem_range_ops {
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync void (*init) __P((struct mem_range_softc * sc));
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int (*set) __P((struct mem_range_softc * sc, struct mem_range_desc * mrd, int *arg));
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync void (*initAP) __P((struct mem_range_softc * sc));
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync};
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncstruct mem_range_softc {
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync struct mem_range_ops *mr_op;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int mr_cap;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync int mr_ndesc;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync struct mem_range_desc *mr_desc;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync};
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncextern struct mem_range_softc mem_range_softc;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncextern int mem_range_attr_get __P((struct mem_range_desc * mrd, int *arg));
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncextern int mem_range_attr_set __P((struct mem_range_desc * mrd, int *arg));
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncextern void mem_range_AP_init __P((void));
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#endif
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#endif