mirror of
https://github.com/NVIDIA/open-gpu-kernel-modules.git
synced 2024-12-02 09:24:21 +01:00
83 lines
3.1 KiB
C
83 lines
3.1 KiB
C
/*******************************************************************************
|
|
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);
|
|
|
|
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__
|