a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync/*
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync * Memory range attribute operations, peformed on /dev/mem
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#ifdef HAVE_XORG_CONFIG_H
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#include <xorg-config.h>
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#endif
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#ifndef _MEMRANGE_H
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define _MEMRANGE_H
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync/* Memory range attributes */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_UNCACHEABLE (1<<0) /* region not cached */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_WRITECOMBINE (1<<1) /* region supports "write combine"
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync * action */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_WRITETHROUGH (1<<2) /* write-through cached */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_WRITEBACK (1<<3) /* write-back cached */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_WRITEPROTECT (1<<4) /* read-only region */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_ATTRMASK (0x00ffffff)
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_FIXBASE (1<<24) /* fixed base */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_FIXLEN (1<<25) /* fixed length */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_FIRMWARE (1<<26) /* set by firmware (XXX not useful?) */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_ACTIVE (1<<27) /* currently active */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_BOGUS (1<<28) /* we don't like it */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_FIXACTIVE (1<<29) /* can't be turned off */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MDF_BUSY (1<<30) /* range is in use */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsyncstruct mem_range_desc {
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync u_int64_t mr_base;
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync u_int64_t mr_len;
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync int mr_flags;
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync char mr_owner[8];
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync};
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsyncstruct mem_range_op {
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync struct mem_range_desc *mo_desc;
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync int mo_arg[2];
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MEMRANGE_SET_UPDATE 0
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MEMRANGE_SET_REMOVE 1
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync /* XXX want a flag that says "set and undo when I exit" */
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync};
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MEMRANGE_GET _IOWR('m', 50, struct mem_range_op)
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#define MEMRANGE_SET _IOW('m', 51, struct mem_range_op)
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#ifdef _KERNEL
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsyncstruct mem_range_softc;
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsyncstruct mem_range_ops {
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync void (*init) __P((struct mem_range_softc * sc));
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync int (*set)
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync __P((struct mem_range_softc * sc, struct mem_range_desc * mrd,
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync int *arg));
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync void (*initAP) __P((struct mem_range_softc * sc));
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync};
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsyncstruct mem_range_softc {
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync struct mem_range_ops *mr_op;
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync int mr_cap;
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync int mr_ndesc;
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync struct mem_range_desc *mr_desc;
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync};
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsyncextern struct mem_range_softc mem_range_softc;
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsyncextern int mem_range_attr_get __P((struct mem_range_desc * mrd, int *arg));
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsyncextern int mem_range_attr_set __P((struct mem_range_desc * mrd, int *arg));
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsyncextern void mem_range_AP_init __P((void));
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#endif
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync
a3f3701cea1ba388e7c877955252bb7375eedebdvboxsync#endif