drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.c

   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
  45 static 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
  58 void 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_LAST + 1] = { };
  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         };
  74         unsigned int hw_ip, i;
  75         int ret;
  76
  77         ret = amdgpu_bo_reserve(vm->root.bo, false);
  78         if (ret)
  79                 return;
  80
  81         amdgpu_vm_get_memory(vm, stats, ARRAY_SIZE(stats));
  82         amdgpu_bo_unreserve(vm->root.bo);
  83
  84         amdgpu_ctx_mgr_usage(&fpriv->ctx_mgr, usage);
  85
  86         /*
  87          * ******************************************************************
  88          * For text output format description please see drm-usage-stats.rst!
  89          * ******************************************************************
  90          */
  91
  92         drm_printf(p, "pasid:\t%u\n", fpriv->vm.pasid);
  93
  94         for (i = 0; i < ARRAY_SIZE(pl_name); i++) {
  95                 if (!pl_name[i])
  96                         continue;
  97
  98                 drm_print_memory_stats(p,
  99                                        &stats[i].drm,
 100                                        DRM_GEM_OBJECT_RESIDENT |
 101                                        DRM_GEM_OBJECT_PURGEABLE,
 102                                        pl_name[i]);
 103         }
 104
 105         /* Legacy amdgpu keys, alias to drm-resident-memory-: */
 106         drm_printf(p, "drm-memory-vram:\t%llu KiB\n",
 107                    stats[TTM_PL_VRAM].drm.resident/1024UL);
 108         drm_printf(p, "drm-memory-gtt: \t%llu KiB\n",
 109                    stats[TTM_PL_TT].drm.resident/1024UL);
 110         drm_printf(p, "drm-memory-cpu: \t%llu KiB\n",
 111                    stats[TTM_PL_SYSTEM].drm.resident/1024UL);
 112
 113         /* Amdgpu specific memory accounting keys: */
 114         drm_printf(p, "amd-evicted-vram:\t%llu KiB\n",
 115                    stats[TTM_PL_VRAM].evicted/1024UL);
 116         drm_printf(p, "amd-requested-vram:\t%llu KiB\n",
 117                    stats[TTM_PL_VRAM].requested/1024UL);
 118         drm_printf(p, "amd-requested-gtt:\t%llu KiB\n",
 119                    stats[TTM_PL_TT].requested/1024UL);
 120
 121         for (hw_ip = 0; hw_ip < AMDGPU_HW_IP_NUM; ++hw_ip) {
 122                 if (!usage[hw_ip])
 123                         continue;
 124
 125                 drm_printf(p, "drm-engine-%s:\t%lld ns\n", amdgpu_ip_name[hw_ip],
 126                            ktime_to_ns(usage[hw_ip]));
 127         }
 128 }