Include nvgpu headers

These are needed to build on NVIDIA's Jetson boards for the time
being. Only a couple structs are required, so it should be fairly
easy to remove this dependency at some point in the future.

1 files changed, 55 insertions, 0 deletions

diff --git a/include/nvgpu/ptimer.h b/include/nvgpu/ptimer.h
new file mode 100644
index 0000000..3369eb2
--- /dev/null
+++ b/include/nvgpu/ptimer.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2017-2018, 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.
+ */
+#ifndef NVGPU_PTIMER_H
+#define NVGPU_PTIMER_H
+
+#include <nvgpu/types.h>
+
+struct gk20a;
+
+struct nvgpu_cpu_time_correlation_sample {
+        u64 cpu_timestamp;
+        u64 gpu_timestamp;
+};
+
+/* PTIMER_REF_FREQ_HZ corresponds to a period of 32 nanoseconds.
+    32 ns is the resolution of ptimer. */
+#define PTIMER_REF_FREQ_HZ                      31250000
+
+static inline u32 ptimer_scalingfactor10x(u32 ptimer_src_freq)
+{
+        return (u32)(((u64)(PTIMER_REF_FREQ_HZ * 10)) / ptimer_src_freq);
+}
+
+static inline u32 scale_ptimer(u32 timeout , u32 scale10x)
+{
+        if (((timeout*10) % scale10x) >= (scale10x/2)) {
+                return ((timeout * 10) / scale10x) + 1;
+        } else {
+                return (timeout * 10) / scale10x;
+        }
+}
+
+int nvgpu_get_timestamps_zipper(struct gk20a *g,
+                u32 source_id, u32 count,
+                struct nvgpu_cpu_time_correlation_sample *samples);
+#endif