First Push

NVIDIA-Linux-x86_64-535.161.07-grid/kernel-open/nvidia/nvlink_linux.h

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+/*
+ * SPDX-FileCopyrightText: Copyright (c) 2014 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 _NVLINK_LINUX_H_
+#define _NVLINK_LINUX_H_
+
+#include <linux/init.h>        // for entry/exit macros
+#include <linux/sched.h>       // for "struct task_struct"
+#include <linux/kernel.h>      // for printk priority macros
+#include <linux/fs.h>
+
+
+#define NVLINK_DEVICE_NAME        "nvidia-nvlink"
+#define NVLINK_NUM_MINOR_DEVICES  1
+
+/*
+ * @Brief : Debug Breakpoint implementation
+ *
+ * @Description :
+ *
+ * @returns                 void
+ */
+static inline void
+dbg_breakpoint(void)
+{
+    /* OS specific breakpoint implemented for NVLink library */
+    #if defined(DEBUG)
+      #if defined(CONFIG_X86_REMOTE_DEBUG) || defined(CONFIG_KGDB) || defined(CONFIG_XMON)
+        #if defined(NVCPU_X86) || defined(NVCPU_X86_64)
+            __asm__ __volatile__ ("int $3");
+        #elif defined(NVCPU_ARM)
+            __asm__ __volatile__ (".word %c0" :: "i" (KGDB_COMPILED_BREAK));
+        #elif defined(NVCPU_AARCH64)
+            # warning "Need to implement dbg_breakpoint() for aarch64"
+        #elif defined(NVCPU_PPC64LE)
+            __asm__ __volatile__ ("trap");
+        #endif /* NVCPU_X86 || NVCPU_X86_64 */
+      #elif defined(CONFIG_KDB)
+            KDB_ENTER();
+      #endif /* CONFIG_X86_REMOTE_DEBUG || CONFIG_KGDB || CONFIG_XMON */
+    #endif /* DEBUG */
+}
+
+#endif //_NVLINK_LINUX_H_