2fea643112
Compile sys/dev/mem/memutil.c for all supported platforms and remove now unnecessary dev_mem_md_init(). Consistently define mem_range_softc from mem.c for all platforms. Add missing #include guards for machine/memdev.h and sys/memrange.h. Clean up some nearby style(9) nits. MFC after: 1 month
80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/*
|
|
* Memory range attribute operations, peformed on /dev/mem
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _SYS_MEMRANGE_H_
|
|
#define _SYS_MEMRANGE_H_
|
|
|
|
/* Memory range attributes */
|
|
#define MDF_UNCACHEABLE (1<<0) /* region not cached */
|
|
#define MDF_WRITECOMBINE (1<<1) /* region supports "write combine" action */
|
|
#define MDF_WRITETHROUGH (1<<2) /* write-through cached */
|
|
#define MDF_WRITEBACK (1<<3) /* write-back cached */
|
|
#define MDF_WRITEPROTECT (1<<4) /* read-only region */
|
|
#define MDF_UNKNOWN (1<<5) /* any state we don't understand */
|
|
#define MDF_ATTRMASK (0x00ffffff)
|
|
|
|
#define MDF_FIXBASE (1<<24) /* fixed base */
|
|
#define MDF_FIXLEN (1<<25) /* fixed length */
|
|
#define MDF_FIRMWARE (1<<26) /* set by firmware (XXX not useful?) */
|
|
#define MDF_ACTIVE (1<<27) /* currently active */
|
|
#define MDF_BOGUS (1<<28) /* we don't like it */
|
|
#define MDF_FIXACTIVE (1<<29) /* can't be turned off */
|
|
#define MDF_BUSY (1<<30) /* range is in use */
|
|
#define MDF_FORCE (1<<31) /* force risky changes */
|
|
|
|
struct mem_range_desc
|
|
{
|
|
u_int64_t mr_base;
|
|
u_int64_t mr_len;
|
|
int mr_flags;
|
|
char mr_owner[8];
|
|
};
|
|
|
|
struct mem_range_op
|
|
{
|
|
struct mem_range_desc *mo_desc;
|
|
int mo_arg[2];
|
|
#define MEMRANGE_SET_UPDATE 0
|
|
#define MEMRANGE_SET_REMOVE 1
|
|
/* XXX want a flag that says "set and undo when I exit" */
|
|
};
|
|
|
|
#define MEMRANGE_GET _IOWR('m', 50, struct mem_range_op)
|
|
#define MEMRANGE_SET _IOW('m', 51, struct mem_range_op)
|
|
|
|
#ifdef _KERNEL
|
|
|
|
MALLOC_DECLARE(M_MEMDESC);
|
|
|
|
struct mem_range_softc;
|
|
struct mem_range_ops
|
|
{
|
|
void (*init)(struct mem_range_softc *sc);
|
|
int (*set)(struct mem_range_softc *sc, struct mem_range_desc *mrd, int *arg);
|
|
void (*initAP)(struct mem_range_softc *sc);
|
|
void (*reinit)(struct mem_range_softc *sc);
|
|
};
|
|
|
|
struct mem_range_softc
|
|
{
|
|
struct mem_range_ops *mr_op;
|
|
int mr_cap;
|
|
int mr_ndesc;
|
|
struct mem_range_desc *mr_desc;
|
|
};
|
|
|
|
extern struct mem_range_softc mem_range_softc;
|
|
|
|
extern void mem_range_init(void);
|
|
extern void mem_range_destroy(void);
|
|
|
|
extern int mem_range_attr_get(struct mem_range_desc *mrd, int *arg);
|
|
extern int mem_range_attr_set(struct mem_range_desc *mrd, int *arg);
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _SYS_MEMRANGE_H_ */
|