Displaying 3 results from an estimated 3 matches for "nv_pfb_niso_poller_cfg".
2014 Oct 21
3
Questions about some PFB registers on NVAC cards
(Sending it to the correct Nvidia mailing list, sorry for the spam)
Hi,
When using acceleration with Nouveau on MacBook Pros with an 9400M (NVAC) card,
a PFIFO interrupt 0x00400000 is thrown during the initialisation of that card
(sometime after PFIFO and PGRAPH initialisation) and the laptop will lockup [1],
forcing users to load Nouveau without acceleration.
After some investigation, I found
2014 Dec 01
1
Questions about some PFB registers on NVAC cards
...tes have flushed all the way to system
> > memory. (I
> > think this is needed to ensure proper ordering of memory
> > transactions.)
> >
> > There are actually three important bits in that register, which
> > control three
> > pollers:
> >
> > NV_PFB_NISO_POLLER_CFG
> > 0x00100c14
> > NV_PFB_NISO_POLLER_CFG_DNISO_ENABLE
> > 0:0
> > NV_PFB_NISO_POLLER_CFG_DNISO_ENABLE_DISABLED
> > 0x00000000
> > NV_PFB_NISO_POLLER_...
2014 Nov 26
0
Questions about some PFB registers on NVAC cards
...r". The pollers exist on MCP77/78 and MCP79/7A to ensure
that certain types of writes have flushed all the way to system memory. (I
think this is needed to ensure proper ordering of memory transactions.)
There are actually three important bits in that register, which control three
pollers:
NV_PFB_NISO_POLLER_CFG 0x00100c14
NV_PFB_NISO_POLLER_CFG_DNISO_ENABLE 0:0
NV_PFB_NISO_POLLER_CFG_DNISO_ENABLE_DISABLED 0x00000000
NV_PFB_NISO_POLLER_CFG_DNISO_ENABLE_ENABLED 0x0000000...