515.43.04

2026-03-07 06:09:49 +00:00 · 2022-05-09 13:18:59 -07:00
commit 1739a20efc
2519 changed files with 1060036 additions and 0 deletions
--- a/kernel-open/nvidia-uvm/uvm_procfs.h
+++ b/kernel-open/nvidia-uvm/uvm_procfs.h
@@ -0,0 +1,84 @@
+/*******************************************************************************
+    Copyright (c) 2015-2019 NVIDIA Corporation
+
+    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 __UVM_PROCFS_H__
+#define __UVM_PROCFS_H__
+
+#include "uvm_extern_decl.h"
+#include "uvm_forward_decl.h"
+#include "uvm_linux.h"
+#include "nv-procfs.h"
+#include "conftest.h"
+
+NV_STATUS uvm_procfs_init(void);
+void uvm_procfs_exit(void);
+
+// Is procfs enabled at all?
+static bool uvm_procfs_is_enabled(void)
+{
+#if defined(CONFIG_PROC_FS)
+    return true;
+#else
+    return false;
+#endif
+}
+
+// Is debug procfs enabled? This indicates that debug procfs files should be
+// created.
+static bool uvm_procfs_is_debug_enabled(void)
+{
+    return uvm_enable_debug_procfs != 0;
+}
+
+struct proc_dir_entry *uvm_procfs_get_gpu_base_dir(void);
+struct proc_dir_entry *uvm_procfs_get_cpu_base_dir(void);
+
+void uvm_procfs_destroy_entry(struct proc_dir_entry *entry);
+
+int uvm_procfs_open_callback(void);
+void uvm_procfs_close_callback(void);
+
+// Helper for printing into a seq_file if it's not NULL and UVM_DBG_PRINT
+// otherwise. Useful when sharing a print function for both debug output and
+// procfs output.
+#define UVM_SEQ_OR_DBG_PRINT(seq_file, format, ...)             \
+    do {                                                        \
+        if (seq_file != NULL)                                   \
+            seq_printf(seq_file, format, ##__VA_ARGS__);        \
+        else                                                    \
+            UVM_DBG_PRINT(format, ##__VA_ARGS__);               \
+    } while (0)
+
+#if defined(CONFIG_PROC_FS)
+
+// Defer PM lock acquisition until the respective read() callback
+// is invoked, to ensure the lock is acquired and released by
+// the same thread.  Else the lock tracking validation code must
+// be disabled for this lock, which is undesirable. As a result, 
+// lockless macro is used below. See bug 2594854 for additional
+// information.
+#define UVM_DEFINE_SINGLE_PROCFS_FILE(name) \
+    NV_DEFINE_SINGLE_PROCFS_FILE_READ_ONLY_WITHOUT_LOCK(name)
+#endif
+
+#endif // __UVM_PROCFS_H__