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git://nv-tegra.nvidia.com/linux-nvgpu.git
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2a2c16af5f
Move all Linux source code files to drivers/gpu/nvgpu/os/linux from drivers/gpu/nvgpu/common/linux. This changes the meaning of common to be OS independent. JIRA NVGPU-598 JIRA NVGPU-601 Change-Id: Ib7f2a43d3688bb0d0b7dcc48469a6783fd988ce9 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1747714 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
/*
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* Copyright (C) 2017 NVIDIA Corporation. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include "debug_hal.h"
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#include "os_linux.h"
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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/* Format and print a single function pointer to the specified seq_file. */
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static void __hal_print_op(struct seq_file *s, void *op_ptr)
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{
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seq_printf(s, "%pF\n", op_ptr);
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}
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/*
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* Prints an array of function pointer addresses in op_ptrs to the
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* specified seq_file
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*/
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static void __hal_print_ops(struct seq_file *s, void **op_ptrs, int num_ops)
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{
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int i;
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for (i = 0; i < num_ops; i++)
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__hal_print_op(s, op_ptrs[i]);
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}
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/*
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* Show file operation, which generates content of the file once. Prints a list
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* of gpu operations as defined by gops and the corresponding function pointer
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* destination addresses. Relies on no compiler reordering of struct fields and
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* assumption that all members are function pointers.
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*/
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static int __hal_show(struct seq_file *s, void *unused)
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{
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struct gpu_ops *gops = s->private;
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__hal_print_ops(s, (void **)gops, sizeof(*gops) / sizeof(void *));
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return 0;
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}
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static int __hal_open(struct inode *inode, struct file *file)
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{
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return single_open(file, __hal_show, inode->i_private);
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}
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static const struct file_operations __hal_fops = {
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.open = __hal_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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void nvgpu_hal_debugfs_fini(struct gk20a *g)
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{
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struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
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if (!(l->debugfs_hal == NULL))
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debugfs_remove_recursive(l->debugfs_hal);
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}
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void nvgpu_hal_debugfs_init(struct gk20a *g)
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{
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struct dentry *d;
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struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
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if (!l->debugfs)
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return;
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l->debugfs_hal = debugfs_create_dir("hal", l->debugfs);
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if (IS_ERR_OR_NULL(l->debugfs_hal)) {
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l->debugfs_hal = NULL;
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return;
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}
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/* Pass along reference to the gpu_ops struct as private data */
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d = debugfs_create_file("gops", S_IRUGO, l->debugfs_hal,
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&g->ops, &__hal_fops);
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if (!d) {
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nvgpu_err(g, "%s: Failed to make debugfs node\n", __func__);
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debugfs_remove_recursive(l->debugfs_hal);
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return;
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}
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}
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