hwt_backend_enable_smp
.hwt_backend_enable_smp = pt_backend_enable_smp,
.hwt_backend_enable_smp = spe_backend_enable_smp,
ctx->hwt_backend->ops->hwt_backend_enable_smp(ctx);
int (*hwt_backend_enable_smp)(struct hwt_context *);
void hwt_backend_enable_smp(struct hwt_context *ctx);
if (ctx->hwt_backend->ops->hwt_backend_enable_smp == NULL) {
hwt_backend_enable_smp(ctx);