First Push

NVIDIA-Linux-x86_64-535.161.07-grid/kernel/common/inc/nv-timer.h

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+/*
+ * SPDX-FileCopyrightText: Copyright (c) 2017 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * SPDX-License-Identifier: MIT
+ *
+ * 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.
+ */
+#ifndef __NV_TIMER_H__
+#define __NV_TIMER_H__
+
+#include <linux/timer.h>
+#include <linux/kernel.h> // For container_of
+
+#include "conftest.h"
+
+struct nv_timer
+{
+    struct timer_list kernel_timer;
+    void (*nv_timer_callback)(struct nv_timer *nv_timer);
+};
+
+static inline void nv_timer_callback_typed_data(struct timer_list *timer)
+{
+    struct nv_timer *nv_timer =
+        container_of(timer, struct nv_timer, kernel_timer);
+
+    nv_timer->nv_timer_callback(nv_timer);
+}
+
+static inline void nv_timer_callback_anon_data(unsigned long arg)
+{
+    struct nv_timer *nv_timer = (struct nv_timer *)arg;
+
+    nv_timer->nv_timer_callback(nv_timer);
+}
+
+static inline void nv_timer_setup(struct nv_timer *nv_timer,
+                                  void (*callback)(struct nv_timer *nv_timer))
+{
+    nv_timer->nv_timer_callback = callback;
+
+#if defined(NV_TIMER_SETUP_PRESENT)
+    timer_setup(&nv_timer->kernel_timer, nv_timer_callback_typed_data, 0);
+#else
+    init_timer(&nv_timer->kernel_timer);
+    nv_timer->kernel_timer.function = nv_timer_callback_anon_data;
+    nv_timer->kernel_timer.data = (unsigned long)nv_timer;
+#endif
+}
+
+#endif // __NV_TIMER_H__