/* * 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