Re: [PATCH 2.6.22.y] ieee1394: revert "sbp2: enforce 32bit DMA mapping"

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 2007-08-06 at 16:25 -0600, Robert Hancock wrote:
> > Anyway.  For now I will simply go with what 2.6.23-rc has and what
> > 2.6.21 had:  No dma_set_mask anywhere in the 1394 subsystem.  We can
> > revisit this whenever an actual need arises.
> 
> Not sure this is a very good idea. This seems rather likely to fail on
> x86_64 machines with >4GB of RAM for example.. 

Would it ? Isn't the default DMA mask for PCI devices set to 32 bits
anyway ? In which case, swiotlb will take care of the matter.

Cheers,
Ben.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux