spu = ctx->spu;
pte_fault = spu->dsisr &
(MFC_DSISR_PTE_NOT_FOUND | MFC_DSISR_ACCESS_DENIED);
- return (!(*stat & 0x1) || pte_fault || spu->class_0_pending) ? 1 : 0;
+ return (!(*stat & SPU_STATUS_RUNNING) || pte_fault || spu->class_0_pending) ?
+ 1 : 0;
}
static int spu_setup_isolated(struct spu_context *ctx)
runcntl = SPU_RUNCNTL_RUNNABLE;
ctx->ops->runcntl_write(ctx, runcntl);
} else {
- spu_start_tick(ctx);
+ unsigned long mode = SPU_PRIVCNTL_MODE_NORMAL;
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);
}
{
int ret = 0;
- spu_stop_tick(ctx);
*status = ctx->ops->status_read(ctx);
*npc = ctx->ops->npc_read(ctx);
spu_release(ctx);
ctx->ops->master_start(ctx);
ctx->event_return = 0;
- ret = spu_acquire_runnable(ctx, 0);
- if (ret)
- return ret;
+ spu_acquire(ctx);
+ if (ctx->state == SPU_STATE_SAVED) {
+ __spu_update_sched_info(ctx);
+
+ ret = spu_activate(ctx, 0);
+ if (ret) {
+ spu_release(ctx);
+ goto out;
+ }
+ } else {
+ /*
+ * We have to update the scheduling priority under active_mutex
+ * to protect against find_victim().
+ */
+ spu_update_sched_info(ctx);
+ }
ret = spu_run_init(ctx, npc);
if (ret) {
if (unlikely(ctx->state != SPU_STATE_RUNNABLE)) {
ret = spu_reacquire_runnable(ctx, npc, &status);
- if (ret) {
- spu_stop_tick(ctx);
+ if (ret)
goto out2;
- }
continue;
}
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)));
+
+ if ((status & SPU_STATUS_STOPPED_BY_STOP) &&
+ ((status >> SPU_STOP_STATUS_SHIFT) & 0x2100))
+ ctx->stats.libassist++;
ctx->ops->master_stop(ctx);
ret = spu_run_fini(ctx, npc, &status);
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);