c5b309ff07
Main changes: - COW optimization for safecopy. - safemap, a grant-based interface for sharing memory regions between processes. - Integration with safemap and complete rework of DS, supporting new data types natively (labels, memory ranges, memory mapped ranges). - For further information: http://wiki.minix3.org/en/SummerOfCode2009/MemoryGrants Additional changes not included in the original Wu's branch: - Fixed unhandled case in VM when using COW optimization for safecopy in case of a block that has already been shared as SMAP. - Better interface and naming scheme for sys_saferevmap and ds_retrieve_map calls. - Better input checking in syslib: check for page alignment when creating memory mapping grants. - DS notifies subscribers when an entry is deleted. - Documented the behavior of indirect grants in case of memory mapping. - Test suite in /usr/src/test/safeperf|safecopy|safemap|ds/* reworked and extended. - Minor fixes and general cleanup. - TO-DO: Grant ids should be generated and managed the way endpoints are to make sure grant slots are never misreused. |
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|---|---|---|
| .. | ||
| es1370 | ||
| es1371 | ||
| framework | ||
| sb16 | ||
| AC97.h | ||
| Makefile | ||
| README | ||
***** Minix 3 Audio drivers *****
Directories:
framework/ Generic driver framework
es1370/ ES1370 driver
es1371/ ES1371 driver
Needs updating:
sb16/ SB16 ISA driver
Running the drivers:
* service up /usr/sbin/es137{0,1} -dev /dev/audio