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- BIOS_Link abstract "DSP/BIOS Link or DSPLINK is an IPC (interprocessor communications) scheme for passing messages and data in multiprocessor systems. In the case of the DaVinci DSP family from Texas Instruments, this scheme would allow passing of messages and data between an ARM client and a DSP server. DSPLINK can be used to implement a layer of software abstraction called a RPC that allows a remote function on the DSP to appear as local function calls in the ARM application code. The Codec Engine IPC communication layer is implemented using a RPC call scheme built on top of DSP/BIOS LINK.DSP/BIOS LINK is implemented using shared memory and internal interrupts from the ARM to the DSP and vice versa. The shared memory protocol for IPC is implemented as follows:The ARM and DSP are programmed to a pre-determined memory address where a message will be sent from the ARM to the DSP; and another for messages sent from the DSP to the ARM. One processor sends messages to the other by writing the message into the pre-determined address and then sending an interrupt to signal the other processor that a new message is available. When transferring data buffers, only a pointer to a given buffer needs to be passed since the buffer resides in shared memory that is accessible to both the processors. ARM buffer addresses must be translated into physical addresses when being presented to the DSP, as the DSP does not have an MMU or a concept of virtual addressing. Once the processor receiving the message has read it, it marks a flag in shared memory to indicate that the message memory is now available to be rewritten with another message. The DSP included in many DaVinci-based devices generally runs TI's DSP/BIOS RTOS. When multiple, heterogeneous cores are included in the device (e.g. DM644x), DSP/BIOS Link drivers run on both the ARM processor and the DSP to provide communication between the two.".
- BIOS_Link thumbnail GStreamer_and_TI_DMAI.svg?width=300.
- BIOS_Link wikiPageExternalLink spry091.pdf.
- BIOS_Link wikiPageExternalLink DSPBIOS_LINK_WebEx_Presentations.
- BIOS_Link wikiPageExternalLink showArticle.jhtml?articleID=190500098.
- BIOS_Link wikiPageID "14101812".
- BIOS_Link wikiPageLength "3188".
- BIOS_Link wikiPageOutDegree "30".
- BIOS_Link wikiPageRevisionID "680739106".
- BIOS_Link wikiPageWikiLink ARM_architecture.
- BIOS_Link wikiPageWikiLink Category:Digital_signal_processors.
- BIOS_Link wikiPageWikiLink Category:Inter-process_communication.
- BIOS_Link wikiPageWikiLink Category:Texas_Instruments.
- BIOS_Link wikiPageWikiLink Codec_Engine_(TI).
- BIOS_Link wikiPageWikiLink Digital_signal_processor.
- BIOS_Link wikiPageWikiLink Green_Hills_Software.
- BIOS_Link wikiPageWikiLink Integrity_(operating_system).
- BIOS_Link wikiPageWikiLink Inter-process_communication.
- BIOS_Link wikiPageWikiLink Interrupt.
- BIOS_Link wikiPageWikiLink LEOs_(RTOS).
- BIOS_Link wikiPageWikiLink Linux.
- BIOS_Link wikiPageWikiLink Memory_management_unit.
- BIOS_Link wikiPageWikiLink Mentor_Graphics.
- BIOS_Link wikiPageWikiLink MontaVista.
- BIOS_Link wikiPageWikiLink Nucleus_RTOS.
- BIOS_Link wikiPageWikiLink QNX.
- BIOS_Link wikiPageWikiLink Real-time_operating_system.
- BIOS_Link wikiPageWikiLink Remote_procedure_call.
- BIOS_Link wikiPageWikiLink Shared_memory.
- BIOS_Link wikiPageWikiLink TI-RTOS.
- BIOS_Link wikiPageWikiLink Texas_Instruments.
- BIOS_Link wikiPageWikiLink Texas_Instruments_DaVinci.
- BIOS_Link wikiPageWikiLink TimeSys.
- BIOS_Link wikiPageWikiLink Virtual_address_space.
- BIOS_Link wikiPageWikiLink Windows_CE.
- BIOS_Link wikiPageWikiLink File:GStreamer_and_TI_DMAI.svg.
- BIOS_Link wikiPageWikiLinkText "DSP/BIOS Link".
- BIOS_Link wikiPageUsesTemplate Template:Clarify.
- BIOS_Link subject Category:Digital_signal_processors.
- BIOS_Link subject Category:Inter-process_communication.
- BIOS_Link subject Category:Texas_Instruments.
- BIOS_Link hypernym Scheme.
- BIOS_Link type Company.
- BIOS_Link type Instrument.
- BIOS_Link type Organisation.
- BIOS_Link type Company.
- BIOS_Link type Instrument.
- BIOS_Link type Processor.
- BIOS_Link comment "DSP/BIOS Link or DSPLINK is an IPC (interprocessor communications) scheme for passing messages and data in multiprocessor systems. In the case of the DaVinci DSP family from Texas Instruments, this scheme would allow passing of messages and data between an ARM client and a DSP server. DSPLINK can be used to implement a layer of software abstraction called a RPC that allows a remote function on the DSP to appear as local function calls in the ARM application code.".
- BIOS_Link label "DSP/BIOS Link".
- BIOS_Link sameAs Q5206164.
- BIOS_Link sameAs BIOS_Link.
- BIOS_Link sameAs m.03ctptk.
- BIOS_Link sameAs Q5206164.
- BIOS_Link wasDerivedFrom BIOS_Link?oldid=680739106.
- BIOS_Link depiction GStreamer_and_TI_DMAI.svg.
- BIOS_Link isPrimaryTopicOf BIOS_Link.
