Mateusz Guzik
9b15b0633e
proto: clean up empty lines in .c and .h files
2020-09-01 21:58:40 +00:00
Marcel Moolenaar
9f011bca82
Lock busdma operations and serialize detach against open/close
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Use sx to allow M_WAITOK allocations (suggested by markj).
admbugs: 782
Reviewed by: markj
2019-07-04 02:51:34 +00:00
Marcel Moolenaar
f40c76d8de
Check the sync operation.
2015-07-28 04:54:05 +00:00
Marcel Moolenaar
b2ce196ca1
o make sure the boundary is a power of 2, when not zero.
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o don't convert 0 to ~0 just so that we can use MIN. ~0 is not a
valid boundary. Introduce BNDRY_MIN that deals with 0 values
that mean no boundary.
2015-07-26 16:39:37 +00:00
Marcel Moolenaar
42d3ab5d1b
Implement unload and sync operations.
2015-07-03 05:44:58 +00:00
Marcel Moolenaar
89abdea8f0
Add create, destroy and load of memory descriptors.
2015-07-03 01:52:22 +00:00
Marcel Moolenaar
90a1793cce
Load the allocated memory and return both the physical
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address and the bus address to the application.
2015-06-10 22:33:56 +00:00
Marcel Moolenaar
cff0f135c1
Implement mmap(2) for the busdma resource.
2015-06-08 21:47:44 +00:00
Marcel Moolenaar
5dcca8e800
Add DMA memory allocation and freeing.
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Slightly rework the tag handling.
2015-06-08 03:00:36 +00:00
Marcel Moolenaar
4f027abddb
DMA support part 1: DMA tag create & destroy
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Create a special resource (= device special file) for management
of tags and maps, as well as for mapping memory into the address
space. DMA resources are managed using the PROTO_IOC_BUSDMA ioctl.
Part 1 implements tag creation, derivation and destruction.
2015-06-06 16:09:25 +00:00
