Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1// SPDX-License-Identifier: MIT
2/* Copyright 2021 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: David Nieto
23 * Roy Sun
24 */
25
26#include <linux/debugfs.h>
27#include <linux/list.h>
28#include <linux/module.h>
29#include <linux/uaccess.h>
30#include <linux/reboot.h>
31#include <linux/syscalls.h>
32
33#include <drm/amdgpu_drm.h>
34#include <drm/drm_debugfs.h>
35
36#include "amdgpu.h"
37#include "amdgpu_vm.h"
38#include "amdgpu_gem.h"
39#include "amdgpu_ctx.h"
40#include "amdgpu_fdinfo.h"
41
42
43static const char *amdgpu_ip_name[AMDGPU_HW_IP_NUM] = {
44 [AMDGPU_HW_IP_GFX] = "gfx",
45 [AMDGPU_HW_IP_COMPUTE] = "compute",
46 [AMDGPU_HW_IP_DMA] = "dma",
47 [AMDGPU_HW_IP_UVD] = "dec",
48 [AMDGPU_HW_IP_VCE] = "enc",
49 [AMDGPU_HW_IP_UVD_ENC] = "enc_1",
50 [AMDGPU_HW_IP_VCN_DEC] = "dec",
51 [AMDGPU_HW_IP_VCN_ENC] = "enc",
52 [AMDGPU_HW_IP_VCN_JPEG] = "jpeg",
53};
54
55void amdgpu_show_fdinfo(struct seq_file *m, struct file *f)
56{
57 struct amdgpu_fpriv *fpriv;
58 uint32_t bus, dev, fn, i, domain;
59 uint64_t vram_mem = 0, gtt_mem = 0, cpu_mem = 0;
60 struct drm_file *file = f->private_data;
61 struct amdgpu_device *adev = drm_to_adev(file->minor->dev);
62 int ret;
63
64 ret = amdgpu_file_to_fpriv(f, &fpriv);
65 if (ret)
66 return;
67 bus = adev->pdev->bus->number;
68 domain = pci_domain_nr(adev->pdev->bus);
69 dev = PCI_SLOT(adev->pdev->devfn);
70 fn = PCI_FUNC(adev->pdev->devfn);
71
72 ret = amdgpu_bo_reserve(fpriv->vm.root.bo, false);
73 if (ret) {
74 DRM_ERROR("Fail to reserve bo\n");
75 return;
76 }
77 amdgpu_vm_get_memory(&fpriv->vm, &vram_mem, >t_mem, &cpu_mem);
78 amdgpu_bo_unreserve(fpriv->vm.root.bo);
79 seq_printf(m, "pdev:\t%04x:%02x:%02x.%d\npasid:\t%u\n", domain, bus,
80 dev, fn, fpriv->vm.pasid);
81 seq_printf(m, "vram mem:\t%llu kB\n", vram_mem/1024UL);
82 seq_printf(m, "gtt mem:\t%llu kB\n", gtt_mem/1024UL);
83 seq_printf(m, "cpu mem:\t%llu kB\n", cpu_mem/1024UL);
84 for (i = 0; i < AMDGPU_HW_IP_NUM; i++) {
85 uint32_t count = amdgpu_ctx_num_entities[i];
86 int idx = 0;
87 uint64_t total = 0, min = 0;
88 uint32_t perc, frac;
89
90 for (idx = 0; idx < count; idx++) {
91 total = amdgpu_ctx_mgr_fence_usage(&fpriv->ctx_mgr,
92 i, idx, &min);
93 if ((total == 0) || (min == 0))
94 continue;
95
96 perc = div64_u64(10000 * total, min);
97 frac = perc % 100;
98
99 seq_printf(m, "%s%d:\t%d.%d%%\n",
100 amdgpu_ip_name[i],
101 idx, perc/100, frac);
102 }
103 }
104}