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#include <drm/drm_drv.h>
36#include <drm/drm_file.h>
37
38#include "amdgpu.h"
39#include "amdgpu_vm.h"
40#include "amdgpu_gem.h"
41#include "amdgpu_ctx.h"
42#include "amdgpu_fdinfo.h"
43
44
45static const char *amdgpu_ip_name[AMDGPU_HW_IP_NUM] = {
46 [AMDGPU_HW_IP_GFX] = "gfx",
47 [AMDGPU_HW_IP_COMPUTE] = "compute",
48 [AMDGPU_HW_IP_DMA] = "dma",
49 [AMDGPU_HW_IP_UVD] = "dec",
50 [AMDGPU_HW_IP_VCE] = "enc",
51 [AMDGPU_HW_IP_UVD_ENC] = "enc_1",
52 [AMDGPU_HW_IP_VCN_DEC] = "dec",
53 [AMDGPU_HW_IP_VCN_ENC] = "enc",
54 [AMDGPU_HW_IP_VCN_JPEG] = "jpeg",
55 [AMDGPU_HW_IP_VPE] = "vpe",
56};
57
58void amdgpu_show_fdinfo(struct drm_printer *p, struct drm_file *file)
59{
60 struct amdgpu_fpriv *fpriv = file->driver_priv;
61 struct amdgpu_vm *vm = &fpriv->vm;
62
63 struct amdgpu_mem_stats stats[__AMDGPU_PL_NUM];
64 ktime_t usage[AMDGPU_HW_IP_NUM];
65 const char *pl_name[] = {
66 [TTM_PL_VRAM] = "vram",
67 [TTM_PL_TT] = "gtt",
68 [TTM_PL_SYSTEM] = "cpu",
69 [AMDGPU_PL_GDS] = "gds",
70 [AMDGPU_PL_GWS] = "gws",
71 [AMDGPU_PL_OA] = "oa",
72 [AMDGPU_PL_DOORBELL] = "doorbell",
73 [AMDGPU_PL_MMIO_REMAP] = "mmioremap",
74 };
75 unsigned int hw_ip, i;
76
77 amdgpu_vm_get_memory(vm, stats);
78 amdgpu_ctx_mgr_usage(mgr: &fpriv->ctx_mgr, usage);
79
80 /*
81 * ******************************************************************
82 * For text output format description please see drm-usage-stats.rst!
83 * ******************************************************************
84 */
85
86 drm_printf(p, f: "pasid:\t%u\n", fpriv->vm.pasid);
87
88 for (i = 0; i < ARRAY_SIZE(pl_name); i++) {
89 if (!pl_name[i])
90 continue;
91
92 drm_print_memory_stats(p,
93 stats: &stats[i].drm,
94 supported_status: DRM_GEM_OBJECT_RESIDENT |
95 DRM_GEM_OBJECT_PURGEABLE,
96 region: pl_name[i]);
97 }
98
99 /* Legacy amdgpu keys, alias to drm-resident-memory-: */
100 drm_printf(p, f: "drm-memory-vram:\t%llu KiB\n",
101 stats[TTM_PL_VRAM].drm.resident/1024UL);
102 drm_printf(p, f: "drm-memory-gtt: \t%llu KiB\n",
103 stats[TTM_PL_TT].drm.resident/1024UL);
104 drm_printf(p, f: "drm-memory-cpu: \t%llu KiB\n",
105 stats[TTM_PL_SYSTEM].drm.resident/1024UL);
106
107 /* Amdgpu specific memory accounting keys: */
108 drm_printf(p, f: "amd-evicted-vram:\t%llu KiB\n",
109 stats[TTM_PL_VRAM].evicted/1024UL);
110 drm_printf(p, f: "amd-requested-vram:\t%llu KiB\n",
111 (stats[TTM_PL_VRAM].drm.shared +
112 stats[TTM_PL_VRAM].drm.private) / 1024UL);
113 drm_printf(p, f: "amd-requested-gtt:\t%llu KiB\n",
114 (stats[TTM_PL_TT].drm.shared +
115 stats[TTM_PL_TT].drm.private) / 1024UL);
116
117 for (hw_ip = 0; hw_ip < AMDGPU_HW_IP_NUM; ++hw_ip) {
118 if (!usage[hw_ip])
119 continue;
120
121 drm_printf(p, f: "drm-engine-%s:\t%lld ns\n", amdgpu_ip_name[hw_ip],
122 ktime_to_ns(kt: usage[hw_ip]));
123 }
124}
125

source code of linux/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.c