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An apparatus for an efficient display flip is disclosed. The apparatus has a computer readable medium having a graphics driver. The execution of the graphics driver is configured to generate instructions for checking status of a graphics device to determine whether the graphics device is ready to di

An apparatus for an efficient display flip is disclosed. The apparatus has a computer readable medium having a graphics driver. The execution of the graphics driver is configured to generate instructions for checking status of a graphics device to determine whether the graphics device is ready to display a next frame data on a display device. The graphics device is coupled to a system memory. The graphics device is configured to forwarding a display flip status to the system memory for access by the graphics driver in response to the instructions.

대표청구항 ▼

[ What is claimed:] [1.] A method for an efficient display flip comprising the steps of:checking status of a graphics device to determine whether said graphics device is ready to process a first next frame data for display on a display device;updating a location in cacheable memory accessible to a g

[ What is claimed:] [1.] A method for an efficient display flip comprising the steps of:checking status of a graphics device to determine whether said graphics device is ready to process a first next frame data for display on a display device;updating a location in cacheable memory accessible to a graphics driver, said location being updated with said status, said status to be read by said graphics driver to determine when to initiate processing of said first next frame data for display;generating a first instruction having a starting address of said first next frame data for the next frame to be displayed, said instruction forwarded to said graphics device;updating a status in an operating register in said graphics device indicating that a display flip is pending, said updating being performed in response to receipt of said first instruction by said graphics device;performing a first PCI master write of said status to a first cacheable location in system memory accessible to said graphics driver; andgenerating a second instruction providing a predetermined address and instruction completion data to said graphics device, said generating being performed by said graphics driver.