OMAP2420 DSPGW status?
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Quoted 21 lines · --- Komal Shah
Toshiharo-San/Paul,
Could you please provide us the status of OMAP2420-DSPGW porting now? Are you able to execute some test application with that?
See that TI uses now their simplified COFF format, they call it DOFF (Dynamic
Object File Format), and it seems to be properietary. I believe that it is
nothing but just re-organization of the COFF file, so that it compresses well,
and then able to reduce the loading time ultimately along with size.So, are you still using the same COFF loader as in case with 1710-GW or do you have
the DOFF-TO-COFF converter and then loading on OMAP2420-DSP? As say, if you are
using the external third-party codecs, they usually now distribute in form of
.doff files ;)
Quoted 3 lines
Are you also considering writing some generic code-apis/framework for OMAP2
MMU and IPC-MBox as it remains same for IVA1.0 too.?
Apart from that, we have lots of IOCTLs for the existing dspgw. Ofcourse as per driver model we are using the sysfs as necessary, but I would also suggest for coming up with some kind of virtual filesystem to handle all those tasks to truely make it scalable for multiple async processors. e.g OMAP2 with adding support for IVA, where we have multple co-processors inside (vlcd, seq, imx buffers) each having their SRAM, where code needs to be loaded as generated in DOFF file, for which you can also export those memories to userspace to have dump of those SRAMs for easy debugging ;). How about naming it iva/dsp-fs?
PS:
Are you able to access dspgw-devel archives? I am also CCing to linux-omap-open-source for archive purpose.
---Komal Shah
http://komalshah.blogspot.com/
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