[SPARC64]: Add timeouts to streaming buffer synchronization.

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If some hardware error occurs and the flush flag never updates,
we will hang forever in these routines.  Add a timeout, and
print out a diagnostic if it is reached.

Signed-off-by: David S. Miller <davem@davemloft.net>

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David S. Miller 2005-05-11 11:37:00 -07:00

parent e4fdee8e3b

commit 4dbc30fb27

2 changed files with 88 additions and 108 deletions

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165

arch/sparc64/kernel/pci_iommu.c

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31

arch/sparc64/kernel/sbus.c

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