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Commit 60cf54db authored by Jeremy Kerr's avatar Jeremy Kerr Committed by Paul Mackerras
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[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: default avatarJeremy Kerr <jk@ozlabs.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 038200cf

arch/powerpc/platforms/cell/spufs/run.c

+5 −2
Original line number Diff line number Diff line
@@ -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;

	}