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 } 129