GNU GRUB - Tasks: task #10079, ATA load & uncompress in...
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task #10079: ATA load & uncompress in parallel
Submitter: | Robert Millan <robertmh> | ||
Submitted: | Sun 10 Jan 2010 02:34:06 PM UTC | ||
Should Start On: | Sat 09 Jan 2010 11:00:00 PM UTC | Should be Finished on: | Sat 09 Jan 2010 11:00:00 PM UTC |
Priority: | 5 - Normal | Status: | None |
Assigned to: | None | Open/Closed: | Open |
No files currently attached
Depends on the following items: None found
Items that depend on this one: None found
Carbon-Copy List
Follows 1 latest change.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2010-05-23 | nigelcunningham | Carbon-Copy | - | Added nigelcunningham |
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Corresponding source code
ATA driver should use DMA transfer mode. In addition, we need some facility that would allow the CPU to do other tasks during a DMA transfer, such as uncompression (when a compressed file is being loaded).
A possible way to do this is to enable functions to be registered as hooks in grub_cpu_idle() (idea by Vladimir).
Note: context switching and/or interrupts must be avoided