diff options
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/run.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c index 57626600b1a..6625ed2a7fd 100644 --- a/arch/powerpc/platforms/cell/spufs/run.c +++ b/arch/powerpc/platforms/cell/spufs/run.c @@ -142,8 +142,12 @@ static int spu_run_init(struct spu_context *ctx, u32 * npc) runcntl = SPU_RUNCNTL_RUNNABLE; ctx->ops->runcntl_write(ctx, runcntl); } else { + unsigned long mode = SPU_PRIVCNTL_MODE_NORMAL; spu_start_tick(ctx); ctx->ops->npc_write(ctx, *npc); + if (test_thread_flag(TIF_SINGLESTEP)) + mode = SPU_PRIVCNTL_MODE_SINGLE_STEP; + out_be64(&ctx->spu->priv2->spu_privcntl_RW, mode); ctx->ops->runcntl_write(ctx, SPU_RUNCNTL_RUNNABLE); } @@ -334,7 +338,8 @@ long spufs_run_spu(struct file *file, struct spu_context *ctx, ret = spu_process_events(ctx); } while (!ret && !(status & (SPU_STATUS_STOPPED_BY_STOP | - SPU_STATUS_STOPPED_BY_HALT))); + SPU_STATUS_STOPPED_BY_HALT | + SPU_STATUS_SINGLE_STEP))); ctx->ops->master_stop(ctx); ret = spu_run_fini(ctx, npc, &status); @@ -344,10 +349,15 @@ out2: if ((ret == 0) || ((ret == -ERESTARTSYS) && ((status & SPU_STATUS_STOPPED_BY_HALT) || + (status & SPU_STATUS_SINGLE_STEP) || ((status & SPU_STATUS_STOPPED_BY_STOP) && (status >> SPU_STOP_STATUS_SHIFT != 0x2104))))) ret = status; + /* Note: we don't need to force_sig SIGTRAP on single-step + * 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) { force_sig(SIGTRAP, current); |