b9a21c3c91c47e090316e28d759194e46628ed49vboxsync/*
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * Memory range attribute operations, peformed on /dev/mem
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#ifdef HAVE_XORG_CONFIG_H
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#include <xorg-config.h>
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#endif
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#ifndef _MEMRANGE_H
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define _MEMRANGE_H
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync/* Memory range attributes */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_UNCACHEABLE (1<<0) /* region not cached */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_WRITECOMBINE (1<<1) /* region supports "write combine"
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * action */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_WRITETHROUGH (1<<2) /* write-through cached */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_WRITEBACK (1<<3) /* write-back cached */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_WRITEPROTECT (1<<4) /* read-only region */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_ATTRMASK (0x00ffffff)
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_FIXBASE (1<<24) /* fixed base */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_FIXLEN (1<<25) /* fixed length */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_FIRMWARE (1<<26) /* set by firmware (XXX not useful?) */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_ACTIVE (1<<27) /* currently active */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_BOGUS (1<<28) /* we don't like it */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_FIXACTIVE (1<<29) /* can't be turned off */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MDF_BUSY (1<<30) /* range is in use */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncstruct mem_range_desc {
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync u_int64_t mr_base;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync u_int64_t mr_len;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync int mr_flags;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync char mr_owner[8];
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync};
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncstruct mem_range_op {
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync struct mem_range_desc *mo_desc;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync int mo_arg[2];
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MEMRANGE_SET_UPDATE 0
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MEMRANGE_SET_REMOVE 1
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* XXX want a flag that says "set and undo when I exit" */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync};
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MEMRANGE_GET _IOWR('m', 50, struct mem_range_op)
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define MEMRANGE_SET _IOW('m', 51, struct mem_range_op)
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#ifdef _KERNEL
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncstruct mem_range_softc;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncstruct mem_range_ops {
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync void (*init) __P((struct mem_range_softc * sc));
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync int (*set) __P((struct mem_range_softc * sc, struct mem_range_desc * mrd, int *arg));
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync void (*initAP) __P((struct mem_range_softc * sc));
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync};
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncstruct mem_range_softc {
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync struct mem_range_ops *mr_op;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync int mr_cap;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync int mr_ndesc;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync struct mem_range_desc *mr_desc;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync};
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncextern struct mem_range_softc mem_range_softc;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncextern int mem_range_attr_get __P((struct mem_range_desc * mrd, int *arg));
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncextern int mem_range_attr_set __P((struct mem_range_desc * mrd, int *arg));
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncextern void mem_range_AP_init __P((void));
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#endif
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#endif