1 #ifndef _XSEG_SYS_UTIL_H
2 #define _XSEG_SYS_UTIL_H
5 #include <sys/domain.h>
7 #define FMTARG(fmt, arg, format, ...) fmt format "%s", arg, ## __VA_ARGS__
8 #define XSEGLOG(...) (xseg_snprintf(__xseg_errbuf, 4096, FMTARG("%s: ", __func__, ## __VA_ARGS__, "")), \
9 __xseg_errbuf[4095] = 0, __xseg_log(__xseg_errbuf))
11 /* general purpose xflags */
12 #define X_ALLOC ((uint32_t) (1 << 0))
13 #define X_LOCAL ((uint32_t) (1 << 1))
16 typedef uint64_t xpointer;
18 /* type to be used as absolute pointer
19 * this should be the same as xqindex
20 * and must fit into a pointer type
22 typedef uint64_t xptr;
24 #define Noneidx ((xqindex)-1)
25 #define Null ((xpointer)-1)
27 #define __align(x, shift) (((((x) -1) >> (shift)) +1) << (shift))
29 #define XPTR_TYPE(ptrtype) \
35 #define XPTRI(xptraddr) \
36 ( (xpointer)(unsigned long)(xptraddr) + \
39 #define XPTRISET(xptraddr, ptrval) \
40 ((xptraddr)->x = (xpointer)(ptrval) - \
41 (xpointer)(unsigned long)(xptraddr) )
43 #define XPTR(xptraddr) \
44 ( (typeof((xptraddr)->t)) \
46 ( (xpointer)(unsigned long)(xptraddr) + \
49 #define XPTRSET(xptraddr, ptrval) \
50 ((xptraddr)->x = (xpointer)(unsigned long)(ptrval) - \
51 (xpointer)(unsigned long)(xptraddr) )
55 #define XPTR_OFFSET(base, ptr) ((unsigned long)(ptr) - (unsigned long)(base))
57 #define XPTR_MAKE(ptrval, base) ((xptr) XPTR_OFFSET(base, ptrval))
59 #define XPTR_TAKE(xptrval, base) \
60 ( (void *) ( (unsigned long) base + (unsigned long) xptrval))