[POWERPC] spufs: handle faults while the context switch pending flag is set

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Currently, page fault handlers don't issue a mfc restart if the context
switch pending flag is set, which can leave us with a hanging DMA after
a context restore.

This patch introduces fault pending flag that is set by the fault
handler and read by the context switch code, so that the latter can add
the restart bit at the right spot, after it has successfuly saved the
state of the mfc control register.

Signed-off-by: Luke Browning <lukebr@linux.vnet.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

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Luke Browning 2008-04-28 17:35:56 +10:00 • committed by Jeremy Kerr

parent f3d69e0507

commit de1028927a

3 changed files with 19 additions and 9 deletions

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include/asm-powerpc/spu.h

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