公开(公告)号：US07944452B1

公开(公告)日：2011-05-17

申请号：US11552093

申请日：2006-10-23

申请人： Adam Clark Wietkemper ,  Steven E. Molnar ,  Mark J. French ,  Cass W. Everitt

发明人： Adam Clark Wietkemper ,  Steven E. Molnar ,  Mark J. French ,  Cass W. Everitt

IPC分类号： G06F12/02 ,  G06F12/10 ,  G06F12/06

CPC分类号： G06F12/10 ,  G06F12/0223 ,  G09G5/39

摘要： Methods and systems for reusing memory addresses in a graphics system are disclosed, so that instances of address translation hardware can be reduced. One embodiment of the present invention sets forth a method, which includes mapping a footprint in screen space to a group of contiguous physical memory locations in a memory system, determining a first physical memory address for a first transaction associated with the footprint, wherein the first physical memory address is within the group of contiguous physical memory locations, determining a second transaction that is also associated with the footprint, determining a set of least significant bits associated with the second transaction, and combining a portion of the first physical memory address with the set of least significant bits associated with the second transaction to generate a second physical memory address for the second transaction, thereby avoiding a second full address translation.

摘要翻译： 公开了用于重新使用图形系统中的存储器地址的方法和系统，从而可以减少地址转换硬件的实例。 本发明的一个实施例提出了一种方法，其包括将屏幕空间中的占位面积映射到存储器系统中的一组连续的物理存储器位置，确定与所述覆盖区相关联的第一事务的第一物理存储器地址，其中所述第一 物理存储器地址在连续的物理存储器位置组内，确定也与占用空间相关联的第二事务，确定与第二事务相关联的一组最低有效位，以及将第一物理存储器地址的一部分与 与第二事务相关联的一组最低有效位以产生用于第二事务的第二物理存储器地址，从而避免第二完整地址转换。