diff options
| author | Luke Browning <lukebr@linux.vnet.ibm.com> | 2008-04-28 17:35:56 +1000 |
|---|---|---|
| committer | Jeremy Kerr <jk@ozlabs.org> | 2008-05-05 13:33:44 +1000 |
| commit | de1028927ae3487e2e450dacf50fbf32042aee18 (patch) | |
| tree | 615b7c5fa3526ccf11b63be88c8978180df0bee8 /include/asm-powerpc/spu.h | |
| parent | f3d69e0507f84903059d456c5d19f10b2df3ac69 (diff) | |
[POWERPC] spufs: handle faults while the context switch pending flag is set
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>
Diffstat (limited to 'include/asm-powerpc/spu.h')
| -rw-r--r-- | include/asm-powerpc/spu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h index 882aa953968..6abead6e681 100644 --- a/include/asm-powerpc/spu.h +++ b/include/asm-powerpc/spu.h @@ -100,6 +100,7 @@ /* Flag indicating progress during context switch. */ #define SPU_CONTEXT_SWITCH_PENDING 0UL +#define SPU_CONTEXT_FAULT_PENDING 1UL struct spu_context; struct spu_runqueue; |