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authorJeremy Kerr <jk@ozlabs.org>2008-01-11 15:03:26 +1100
committerPaul Mackerras <paulus@samba.org>2008-02-06 16:26:59 +1100
commit60cf54db47727935af1c439f59c636a96a8cbd4b (patch)
tree2cf1b2e8351741a3c6656bdd4574c4e90b47415a
parent038200cfdc6467fa8100c5b9c3b81730f0158370 (diff)
[POWERPC] spufs: Fix SPE single-step mode
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>
-rw-r--r--arch/powerpc/platforms/cell/spufs/run.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index c01a09da1e5..b4814c740d8 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -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;
}