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authorRobert Hancock2008-02-04 19:39:02 -0600
committerJeff Garzik2008-02-06 07:00:27 -0500
commit8959d300a79c1b70526cdf9e00485262cf8d979f (patch)
tree49a69098a15da63317ea230e11f86a9d4d7341f6 /include/asm-parisc
parent8d8b60046d6a2328ca4b9031b4948084f775f607 (diff)
sata_nv: fix ATAPI issues with memory over 4GB (v7)
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). Also, if either port is in ATAPI mode we need to set the DMA mask for the PCI device to 32-bit to ensure that the IOMMU code properly bounces requests above 4GB, as it appears setting the bounce limit does not guarantee that we will not try to map requests above this point. Reported to fix https://bugzilla.redhat.com/show_bug.cgi?id=351451 Signed-off-by: Robert Hancock <hancockr@shaw.ca> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include/asm-parisc')
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