| 1 | /*
|
|---|
| 2 | * Memory range attribute operations, peformed on /dev/mem
|
|---|
| 3 | *
|
|---|
| 4 | * $FreeBSD: src/sys/sys/memrange.h,v 1.4 1999/12/29 04:24:44 peter Exp $
|
|---|
| 5 | */
|
|---|
| 6 | /* $XFree86$ */
|
|---|
| 7 |
|
|---|
| 8 | #ifdef HAVE_XORG_CONFIG_H
|
|---|
| 9 | #include <xorg-config.h>
|
|---|
| 10 | #endif
|
|---|
| 11 |
|
|---|
| 12 | #ifndef _MEMRANGE_H
|
|---|
| 13 | #define _MEMRANGE_H
|
|---|
| 14 |
|
|---|
| 15 | /* Memory range attributes */
|
|---|
| 16 | #define MDF_UNCACHEABLE (1<<0) /* region not cached */
|
|---|
| 17 | #define MDF_WRITECOMBINE (1<<1) /* region supports "write combine"
|
|---|
| 18 | * action */
|
|---|
| 19 | #define MDF_WRITETHROUGH (1<<2) /* write-through cached */
|
|---|
| 20 | #define MDF_WRITEBACK (1<<3) /* write-back cached */
|
|---|
| 21 | #define MDF_WRITEPROTECT (1<<4) /* read-only region */
|
|---|
| 22 | #define MDF_ATTRMASK (0x00ffffff)
|
|---|
| 23 |
|
|---|
| 24 | #define MDF_FIXBASE (1<<24) /* fixed base */
|
|---|
| 25 | #define MDF_FIXLEN (1<<25) /* fixed length */
|
|---|
| 26 | #define MDF_FIRMWARE (1<<26) /* set by firmware (XXX not useful?) */
|
|---|
| 27 | #define MDF_ACTIVE (1<<27) /* currently active */
|
|---|
| 28 | #define MDF_BOGUS (1<<28) /* we don't like it */
|
|---|
| 29 | #define MDF_FIXACTIVE (1<<29) /* can't be turned off */
|
|---|
| 30 | #define MDF_BUSY (1<<30) /* range is in use */
|
|---|
| 31 |
|
|---|
| 32 | struct mem_range_desc {
|
|---|
| 33 | u_int64_t mr_base;
|
|---|
| 34 | u_int64_t mr_len;
|
|---|
| 35 | int mr_flags;
|
|---|
| 36 | char mr_owner[8];
|
|---|
| 37 | };
|
|---|
| 38 |
|
|---|
| 39 | struct mem_range_op {
|
|---|
| 40 | struct mem_range_desc *mo_desc;
|
|---|
| 41 | int mo_arg[2];
|
|---|
| 42 | #define MEMRANGE_SET_UPDATE 0
|
|---|
| 43 | #define MEMRANGE_SET_REMOVE 1
|
|---|
| 44 | /* XXX want a flag that says "set and undo when I exit" */
|
|---|
| 45 | };
|
|---|
| 46 | #define MEMRANGE_GET _IOWR('m', 50, struct mem_range_op)
|
|---|
| 47 | #define MEMRANGE_SET _IOW('m', 51, struct mem_range_op)
|
|---|
| 48 |
|
|---|
| 49 | #ifdef _KERNEL
|
|---|
| 50 |
|
|---|
| 51 | struct mem_range_softc;
|
|---|
| 52 | struct mem_range_ops {
|
|---|
| 53 | void (*init) __P((struct mem_range_softc * sc));
|
|---|
| 54 | int (*set) __P((struct mem_range_softc * sc, struct mem_range_desc * mrd, int *arg));
|
|---|
| 55 | void (*initAP) __P((struct mem_range_softc * sc));
|
|---|
| 56 | };
|
|---|
| 57 |
|
|---|
| 58 | struct mem_range_softc {
|
|---|
| 59 | struct mem_range_ops *mr_op;
|
|---|
| 60 | int mr_cap;
|
|---|
| 61 | int mr_ndesc;
|
|---|
| 62 | struct mem_range_desc *mr_desc;
|
|---|
| 63 | };
|
|---|
| 64 |
|
|---|
| 65 | extern struct mem_range_softc mem_range_softc;
|
|---|
| 66 |
|
|---|
| 67 | extern int mem_range_attr_get __P((struct mem_range_desc * mrd, int *arg));
|
|---|
| 68 | extern int mem_range_attr_set __P((struct mem_range_desc * mrd, int *arg));
|
|---|
| 69 | extern void mem_range_AP_init __P((void));
|
|---|
| 70 | #endif
|
|---|
| 71 |
|
|---|
| 72 | #endif
|
|---|
