list_for_each_entry(entry, &dev->maplist, head) {
/*
* Because the kernel-userspace ABI is fixed at a 32-bit offset
- * while PCI resources may live above that, we ignore the map
- * offset for maps of type _DRM_FRAMEBUFFER or _DRM_REGISTERS.
- * It is assumed that each driver will have only one resource of
- * each type.
+ * while PCI resources may live above that, we only compare the
+ * lower 32 bits of the map offset for maps of type
+ * _DRM_FRAMEBUFFER or _DRM_REGISTERS.
+ * It is assumed that if a driver have more than one resource
+ * of each type, the lower 32 bits are different.
*/
if (!entry->map ||
map->type != entry->map->type ||
case _DRM_SHM:
if (map->flags != _DRM_CONTAINS_LOCK)
break;
+ return entry;
case _DRM_REGISTERS:
case _DRM_FRAME_BUFFER:
- return entry;
+ if ((entry->map->offset & 0xffffffff) ==
+ (map->offset & 0xffffffff))
+ return entry;
default: /* Make gcc happy */
;
}
kfree(map);
return -EINVAL;
}
-#endif
-#ifdef __alpha__
- map->offset += dev->hose->mem_space->start;
#endif
/* Some drivers preinitialize some maps, without the X Server
* needing to be aware of it. Therefore, we just return success