Re: [PATCH] sata_nv: fix ADMA ATAPI issues with memory over 4GB (v3)

[Jeff Garzik]

Robert Hancock wrote:
> This fixes some problems with ATAPI devices on nForce4 controllers in ADMA mode
> on systems with memory located above 4GB. We need to delay setting the 64-bit
> DMA mask until the PRD table and padding buffer are allocated so that they don't
> get allocated above 4GB and break legacy mode (which is needed for ATAPI
> devices).
>
> Signed-off-by: Robert Hancock <hancockr@xxxxxxx>

This is a bit nasty :/

I would consider setting the consistent DMA mask to 32-bit, and setting 
the overall mask to 64-bit.

Seems like that would solve the problem?

Also, does this need to be rebased on top of what I just pushed upstream?

	Jeff



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