diff options
Diffstat (limited to 'xorg-server/hw/xfree86/os-support/bsd/memrange.h')
-rw-r--r-- | xorg-server/hw/xfree86/os-support/bsd/memrange.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/os-support/bsd/memrange.h b/xorg-server/hw/xfree86/os-support/bsd/memrange.h new file mode 100644 index 000000000..03c479144 --- /dev/null +++ b/xorg-server/hw/xfree86/os-support/bsd/memrange.h @@ -0,0 +1,69 @@ +/* + * Memory range attribute operations, peformed on /dev/mem + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#ifndef _MEMRANGE_H +#define _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_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 */ + +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 + +struct mem_range_softc; +struct mem_range_ops { + void (*init) __P((struct mem_range_softc * sc)); + int (*set) __P((struct mem_range_softc * sc, struct mem_range_desc * mrd, int *arg)); + void (*initAP) __P((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 int mem_range_attr_get __P((struct mem_range_desc * mrd, int *arg)); +extern int mem_range_attr_set __P((struct mem_range_desc * mrd, int *arg)); +extern void mem_range_AP_init __P((void)); +#endif + +#endif |