61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/*
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * Memory range attribute operations, peformed on /dev/mem
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#ifdef HAVE_XORG_CONFIG_H
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#include <xorg-config.h>
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#endif
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#ifndef _MEMRANGE_H
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define _MEMRANGE_H
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/* Memory range attributes */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_UNCACHEABLE (1<<0) /* region not cached */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_WRITECOMBINE (1<<1) /* region supports "write combine"
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * action */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_WRITETHROUGH (1<<2) /* write-through cached */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_WRITEBACK (1<<3) /* write-back cached */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_WRITEPROTECT (1<<4) /* read-only region */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_ATTRMASK (0x00ffffff)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_FIXBASE (1<<24) /* fixed base */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_FIXLEN (1<<25) /* fixed length */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_FIRMWARE (1<<26) /* set by firmware (XXX not useful?) */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_ACTIVE (1<<27) /* currently active */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_BOGUS (1<<28) /* we don't like it */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_FIXACTIVE (1<<29) /* can't be turned off */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MDF_BUSY (1<<30) /* range is in use */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstruct mem_range_desc {
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync u_int64_t mr_base;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync u_int64_t mr_len;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync int mr_flags;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync char mr_owner[8];
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync};
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstruct mem_range_op {
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync struct mem_range_desc *mo_desc;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync int mo_arg[2];
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MEMRANGE_SET_UPDATE 0
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MEMRANGE_SET_REMOVE 1
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* XXX want a flag that says "set and undo when I exit" */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync};
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MEMRANGE_GET _IOWR('m', 50, struct mem_range_op)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define MEMRANGE_SET _IOW('m', 51, struct mem_range_op)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#ifdef _KERNEL
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstruct mem_range_softc;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstruct mem_range_ops {
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync void (*init) __P((struct mem_range_softc * sc));
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync int (*set)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync __P((struct mem_range_softc * sc, struct mem_range_desc * mrd,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync int *arg));
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync void (*initAP) __P((struct mem_range_softc * sc));
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync};
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncstruct mem_range_softc {
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync struct mem_range_ops *mr_op;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync int mr_cap;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync int mr_ndesc;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync struct mem_range_desc *mr_desc;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync};
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern struct mem_range_softc mem_range_softc;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern int mem_range_attr_get __P((struct mem_range_desc * mrd, int *arg));
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern int mem_range_attr_set __P((struct mem_range_desc * mrd, int *arg));
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsyncextern void mem_range_AP_init __P((void));
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#endif
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#endif