Open source GPL/LGPL release

drivers/gpu/nvgpu/os/posix/error_notifier.c

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2018-2019, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <nvgpu/error_notifier.h>
+#include <nvgpu/channel.h>
+
+#include <nvgpu/posix/posix-channel.h>
+
+void nvgpu_set_err_notifier_locked(struct nvgpu_channel *ch, u32 error)
+{
+	struct nvgpu_posix_channel *cp = ch->os_priv;
+	if (cp != NULL) {
+		cp->err_notifier.error = error;
+		cp->err_notifier.status = 0xffff;
+	}
+}
+
+void nvgpu_set_err_notifier(struct nvgpu_channel *ch, u32 error)
+{
+	nvgpu_set_err_notifier_locked(ch, error);
+}
+
+void nvgpu_set_err_notifier_if_empty(struct nvgpu_channel *ch, u32 error)
+{
+	struct nvgpu_posix_channel *cp = ch->os_priv;
+	if (cp != NULL && cp->err_notifier.status == 0) {
+		nvgpu_set_err_notifier_locked(ch, error);
+	}
+}
+
+bool nvgpu_is_err_notifier_set(struct nvgpu_channel *ch, u32 error_notifier)
+{
+	struct nvgpu_posix_channel *cp = ch->os_priv;
+	if ((cp != NULL) && (cp->err_notifier.status != 0)) {
+		return cp->err_notifier.error == error_notifier;
+	}
+	return false;
+}