45e9809aff7304721fddb95654901b32195c9c7avboxsync/*
45e9809aff7304721fddb95654901b32195c9c7avboxsync * Memory range attribute operations, peformed on /dev/mem
45e9809aff7304721fddb95654901b32195c9c7avboxsync */
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsync#ifdef HAVE_XORG_CONFIG_H
45e9809aff7304721fddb95654901b32195c9c7avboxsync#include <xorg-config.h>
45e9809aff7304721fddb95654901b32195c9c7avboxsync#endif
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsync#ifndef _MEMRANGE_H
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define _MEMRANGE_H
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsync/* Memory range attributes */
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_UNCACHEABLE (1<<0) /* region not cached */
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_WRITECOMBINE (1<<1) /* region supports "write combine"
45e9809aff7304721fddb95654901b32195c9c7avboxsync * action */
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_WRITETHROUGH (1<<2) /* write-through cached */
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_WRITEBACK (1<<3) /* write-back cached */
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_WRITEPROTECT (1<<4) /* read-only region */
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_ATTRMASK (0x00ffffff)
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_FIXBASE (1<<24) /* fixed base */
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_FIXLEN (1<<25) /* fixed length */
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_FIRMWARE (1<<26) /* set by firmware (XXX not useful?) */
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_ACTIVE (1<<27) /* currently active */
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_BOGUS (1<<28) /* we don't like it */
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_FIXACTIVE (1<<29) /* can't be turned off */
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MDF_BUSY (1<<30) /* range is in use */
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsyncstruct mem_range_desc {
45e9809aff7304721fddb95654901b32195c9c7avboxsync u_int64_t mr_base;
45e9809aff7304721fddb95654901b32195c9c7avboxsync u_int64_t mr_len;
45e9809aff7304721fddb95654901b32195c9c7avboxsync int mr_flags;
45e9809aff7304721fddb95654901b32195c9c7avboxsync char mr_owner[8];
45e9809aff7304721fddb95654901b32195c9c7avboxsync};
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsyncstruct mem_range_op {
45e9809aff7304721fddb95654901b32195c9c7avboxsync struct mem_range_desc *mo_desc;
45e9809aff7304721fddb95654901b32195c9c7avboxsync int mo_arg[2];
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MEMRANGE_SET_UPDATE 0
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MEMRANGE_SET_REMOVE 1
45e9809aff7304721fddb95654901b32195c9c7avboxsync /* XXX want a flag that says "set and undo when I exit" */
45e9809aff7304721fddb95654901b32195c9c7avboxsync};
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MEMRANGE_GET _IOWR('m', 50, struct mem_range_op)
45e9809aff7304721fddb95654901b32195c9c7avboxsync#define MEMRANGE_SET _IOW('m', 51, struct mem_range_op)
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsync#ifdef _KERNEL
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsyncstruct mem_range_softc;
45e9809aff7304721fddb95654901b32195c9c7avboxsyncstruct mem_range_ops {
45e9809aff7304721fddb95654901b32195c9c7avboxsync void (*init) __P((struct mem_range_softc * sc));
45e9809aff7304721fddb95654901b32195c9c7avboxsync int (*set) __P((struct mem_range_softc * sc, struct mem_range_desc * mrd, int *arg));
45e9809aff7304721fddb95654901b32195c9c7avboxsync void (*initAP) __P((struct mem_range_softc * sc));
45e9809aff7304721fddb95654901b32195c9c7avboxsync};
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsyncstruct mem_range_softc {
45e9809aff7304721fddb95654901b32195c9c7avboxsync struct mem_range_ops *mr_op;
45e9809aff7304721fddb95654901b32195c9c7avboxsync int mr_cap;
45e9809aff7304721fddb95654901b32195c9c7avboxsync int mr_ndesc;
45e9809aff7304721fddb95654901b32195c9c7avboxsync struct mem_range_desc *mr_desc;
45e9809aff7304721fddb95654901b32195c9c7avboxsync};
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsyncextern struct mem_range_softc mem_range_softc;
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsyncextern int mem_range_attr_get __P((struct mem_range_desc * mrd, int *arg));
45e9809aff7304721fddb95654901b32195c9c7avboxsyncextern int mem_range_attr_set __P((struct mem_range_desc * mrd, int *arg));
45e9809aff7304721fddb95654901b32195c9c7avboxsyncextern void mem_range_AP_init __P((void));
45e9809aff7304721fddb95654901b32195c9c7avboxsync#endif
45e9809aff7304721fddb95654901b32195c9c7avboxsync
45e9809aff7304721fddb95654901b32195c9c7avboxsync#endif