f0ab104f070bc7f569404826fea1828ed985638cvboxsync/*
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Memory range attribute operations, peformed on /dev/mem
f0ab104f070bc7f569404826fea1828ed985638cvboxsync */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#ifdef HAVE_XORG_CONFIG_H
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#include <xorg-config.h>
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#endif
f0ab104f070bc7f569404826fea1828ed985638cvboxsync
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#ifndef _MEMRANGE_H
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define _MEMRANGE_H
f0ab104f070bc7f569404826fea1828ed985638cvboxsync
f0ab104f070bc7f569404826fea1828ed985638cvboxsync/* Memory range attributes */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_UNCACHEABLE (1<<0) /* region not cached */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_WRITECOMBINE (1<<1) /* region supports "write combine"
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * action */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_WRITETHROUGH (1<<2) /* write-through cached */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_WRITEBACK (1<<3) /* write-back cached */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_WRITEPROTECT (1<<4) /* read-only region */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_ATTRMASK (0x00ffffff)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_FIXBASE (1<<24) /* fixed base */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_FIXLEN (1<<25) /* fixed length */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_FIRMWARE (1<<26) /* set by firmware (XXX not useful?) */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_ACTIVE (1<<27) /* currently active */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_BOGUS (1<<28) /* we don't like it */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_FIXACTIVE (1<<29) /* can't be turned off */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MDF_BUSY (1<<30) /* range is in use */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncstruct mem_range_desc {
f0ab104f070bc7f569404826fea1828ed985638cvboxsync u_int64_t mr_base;
f0ab104f070bc7f569404826fea1828ed985638cvboxsync u_int64_t mr_len;
f0ab104f070bc7f569404826fea1828ed985638cvboxsync int mr_flags;
f0ab104f070bc7f569404826fea1828ed985638cvboxsync char mr_owner[8];
f0ab104f070bc7f569404826fea1828ed985638cvboxsync};
f0ab104f070bc7f569404826fea1828ed985638cvboxsync
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncstruct mem_range_op {
f0ab104f070bc7f569404826fea1828ed985638cvboxsync struct mem_range_desc *mo_desc;
f0ab104f070bc7f569404826fea1828ed985638cvboxsync int mo_arg[2];
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MEMRANGE_SET_UPDATE 0
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MEMRANGE_SET_REMOVE 1
f0ab104f070bc7f569404826fea1828ed985638cvboxsync /* XXX want a flag that says "set and undo when I exit" */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync};
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MEMRANGE_GET _IOWR('m', 50, struct mem_range_op)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define MEMRANGE_SET _IOW('m', 51, struct mem_range_op)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#ifdef _KERNEL
f0ab104f070bc7f569404826fea1828ed985638cvboxsync
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncstruct mem_range_softc;
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncstruct mem_range_ops {
f0ab104f070bc7f569404826fea1828ed985638cvboxsync void (*init) __P((struct mem_range_softc * sc));
f0ab104f070bc7f569404826fea1828ed985638cvboxsync int (*set) __P((struct mem_range_softc * sc, struct mem_range_desc * mrd, int *arg));
f0ab104f070bc7f569404826fea1828ed985638cvboxsync void (*initAP) __P((struct mem_range_softc * sc));
f0ab104f070bc7f569404826fea1828ed985638cvboxsync};
f0ab104f070bc7f569404826fea1828ed985638cvboxsync
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncstruct mem_range_softc {
f0ab104f070bc7f569404826fea1828ed985638cvboxsync struct mem_range_ops *mr_op;
f0ab104f070bc7f569404826fea1828ed985638cvboxsync int mr_cap;
f0ab104f070bc7f569404826fea1828ed985638cvboxsync int mr_ndesc;
f0ab104f070bc7f569404826fea1828ed985638cvboxsync struct mem_range_desc *mr_desc;
f0ab104f070bc7f569404826fea1828ed985638cvboxsync};
f0ab104f070bc7f569404826fea1828ed985638cvboxsync
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncextern struct mem_range_softc mem_range_softc;
f0ab104f070bc7f569404826fea1828ed985638cvboxsync
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncextern int mem_range_attr_get __P((struct mem_range_desc * mrd, int *arg));
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncextern int mem_range_attr_set __P((struct mem_range_desc * mrd, int *arg));
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncextern void mem_range_AP_init __P((void));
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#endif
f0ab104f070bc7f569404826fea1828ed985638cvboxsync
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#endif