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[POWERPC] spufs: Fix SPE single-step mode

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Currently we only catch debug events through the 0x3fff status;
spufs_run_spu doesn't handle single-step SPE events.

This change adds a handler for conditions where the SPE is stopped due
to single-step-mode.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Jeremy Kerr 2008-01-11 15:03:26 +11:00 committed by Paul Mackerras
parent 038200cfdc
commit 60cf54db47
1 changed files with 5 additions and 2 deletions
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7
arch/powerpc/platforms/cell/spufs/run.c
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@ -410,8 +410,11 @@ long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *event)
* since we have TIF_SINGLESTEP set, thus the kernel will do
* it upon return from the syscall anyawy
*/
if ((status & SPU_STATUS_STOPPED_BY_STOP)
&& (status >> SPU_STOP_STATUS_SHIFT) == 0x3fff) {
if (unlikely(status & SPU_STATUS_SINGLE_STEP))
ret = -ERESTARTSYS;
else if (unlikely((status & SPU_STATUS_STOPPED_BY_STOP)
&& (status >> SPU_STOP_STATUS_SHIFT) == 0x3fff)) {
force_sig(SIGTRAP, current);
ret = -ERESTARTSYS;
}