<wingrime>
libv: DMA is fastest way copy something not g2b
2013-03-25
<mnemoc>
techn_: but it only works via DMA
<mnemoc>
techn_: soc-detect actually worked on oliv3r's A10. message is print first time in line 57 of http://paste.debian.net/244611/. immediatelly beofre DMA's init
<wingrime>
oliv3r: why ethernet driver not using dma
2013-03-24
<wingrime>
Turl: dma simpler than Crypto core
<wingrime>
dma It a great thing
<Turl>
yeah I don't plan on touching dma any time soon :)
<wingrime>
This module can be used with dma
<wingrime>
mnemoc: it not difficut to move dma and devices. clock need still investegate
<wingrime>
mnemoc: last demand dma,clock , includes
2013-03-23
<wingrime>
and I will make DMA patch
2013-03-22
<mnemoc>
hno and slapin invested months in trying to read the nand without dma
2013-03-18
<wingrime>
If we get good dma nand it may be good speedup
2013-03-16
<slapin>
Turl: OOB can be made working, I spent enought time with this. Not DMA - controller itself, ECC is not mandatory, and DMA is not mandatory either.
<Turl>
slapin: OOB stuff is broken because DMA autocalculates it or sth
2013-03-13
<mnemoc>
calris_: and full sunxi-mmc (dma and stuff)
2013-03-12
<mnemoc>
but they managed to read the raw nand using dma
2013-03-08
<mripard>
DMA is just a convenience
<wingrime>
but ethernet without dma are ugly
<mripard>
wingrime: that, or make the mmc driver work without dma, which is a good thing anyway
<wingrime>
mtipard: so dma is hi-est priotiy ?
<Turl>
mripard: doesn't wemac use dma too?
<mripard>
plus, it uses DMA, and we don't have DMA (yet)
2013-03-01
<Turl>
there should be DMA support on the hardware
<jelly-home>
interrupt count / MB looks about the same as ahci on an intel H55 chipset, around 8 per 1MB read = 900/s, so I _guess_ it does DMA not PIO
<jelly-home>
I've done some testing of SATA on a cubieboard, and it seems it uses quite a bit of cpu. In addition, it had issues talking to a consumer SSD on 3.0Gbps speeds when I tried to dd the whole disk. http://paste.debian.net/239224/ The transfer got stable after reneg. to 1.5Gbps and pulled a decent 110MB/s. sata on A10 does DMA, right?
<vinifm>
from sunxi_hcd_unmap_urb_for_dma(): sw_hci_sunxi.c