515.43.04

kernel-open/nvidia/linux_nvswitch.h

@@ -0,0 +1,90 @@
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 2016-2021 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 LINUX_NVSWITCH_H
+#define LINUX_NVSWITCH_H
+
+#include "nvmisc.h"
+#include "nv-linux.h"
+#include "nv-kthread-q.h"
+#include "export_nvswitch.h"
+
+#define NVSWITCH_SHORT_NAME "nvswi"
+
+#define NVSWITCH_IRQ_NONE 0
+#define NVSWITCH_IRQ_MSIX 1
+#define NVSWITCH_IRQ_MSI  2
+#define NVSWITCH_IRQ_PIN  3
+
+#define NVSWITCH_OS_ASSERT(_cond)                                                       \
+    nvswitch_os_assert_log((_cond), "NVSwitch: Assertion failed in %s() at %s:%d\n",    \
+         __FUNCTION__ , __FILE__, __LINE__)
+
+#define NVSWITCH_KMALLOC_LIMIT (128 * 1024)
+
+#define nvswitch_os_malloc(_size)        nvswitch_os_malloc_trace(_size, __FILE__, __LINE__)
+
+typedef struct
+{
+    struct list_head entry;
+    struct i2c_adapter *adapter;
+} nvswitch_i2c_adapter_entry;
+
+// Per-chip driver state
+typedef struct
+{
+    char name[sizeof(NVSWITCH_DRIVER_NAME) + 4];
+    char sname[sizeof(NVSWITCH_SHORT_NAME) + 4];  /* short name */
+    int minor;
+    NvUuid uuid;
+    struct mutex device_mutex;
+    nvswitch_device *lib_device;                  /* nvswitch library device */
+    wait_queue_head_t wait_q_errors;
+    void *bar0;
+    struct nv_kthread_q task_q;                   /* Background task queue */
+    struct nv_kthread_q_item task_item;           /* Background dispatch task */
+    atomic_t task_q_ready;
+    wait_queue_head_t wait_q_shutdown;
+    struct pci_dev *pci_dev;
+    atomic_t ref_count;
+    struct list_head list_node;
+    NvBool unusable;
+    NvU32 phys_id;
+    NvU64 bios_ver;
+#if defined(CONFIG_PROC_FS)
+    struct proc_dir_entry *procfs_dir;
+#endif
+    NvU8 irq_mechanism;
+    struct list_head i2c_adapter_list;
+} NVSWITCH_DEV;
+
+
+int nvswitch_map_status(NvlStatus status);
+int nvswitch_procfs_init(void);
+void nvswitch_procfs_exit(void);
+int nvswitch_procfs_device_add(NVSWITCH_DEV *nvswitch_dev);
+void nvswitch_procfs_device_remove(NVSWITCH_DEV *nvswitch_dev);
+struct i2c_adapter *nvswitch_i2c_add_adapter(NVSWITCH_DEV *nvswitch_dev, NvU32 port);
+void nvswitch_i2c_del_adapter(struct i2c_adapter *adapter);
+
+#endif // LINUX_NVSWITCH_H