From: Jeremy Kerr Date: Fri, 11 Jan 2008 04:03:26 +0000 (+1100) Subject: [POWERPC] spufs: Fix SPE single-step mode X-Git-Tag: v2.6.25-rc1~303^2~41 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=60cf54db47727935af1c439f59c636a96a8cbd4b;p=linux-2.6-omap-h63xx.git [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 Signed-off-by: Paul Mackerras --- 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; }