return true;
}
+
+bool
+gen_perf_inc_n_users(struct gen_perf_context *perf_ctx)
+{
+ if (perf_ctx->n_oa_users == 0 &&
+ gen_ioctl(perf_ctx->oa_stream_fd, I915_PERF_IOCTL_ENABLE, 0) < 0)
+ {
+ return false;
+ }
+ ++perf_ctx->n_oa_users;
+
+ return true;
+}
+
+void
+gen_perf_dec_n_users(struct gen_perf_context *perf_ctx)
+{
+ /* Disabling the i915 perf stream will effectively disable the OA
+ * counters. Note it's important to be sure there are no outstanding
+ * MI_RPC commands at this point since they could stall the CS
+ * indefinitely once OACONTROL is disabled.
+ */
+ --perf_ctx->n_oa_users;
+ if (perf_ctx->n_oa_users == 0 &&
+ gen_ioctl(perf_ctx->oa_stream_fd, I915_PERF_IOCTL_DISABLE, 0) < 0)
+ {
+ DBG("WARNING: Error disabling gen perf stream: %m\n");
+ }
+}