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 37 #include "amdgpu.h" 38 #include "amdgpu_vm.h" 39 #include "amdgpu_gem.h" 40 #include "amdgpu_ctx.h" 41 #include "amdgpu_fdinfo.h" 42 43 44 static const char *amdgpu_ip_name[AMDGPU_HW_IP_NUM] = { 45 [AMDGPU_HW_IP_GFX] = "gfx", 46 [AMDGPU_HW_IP_COMPUTE] = "compute", 47 [AMDGPU_HW_IP_DMA] = "dma", 48 [AMDGPU_HW_IP_UVD] = "dec", 49 [AMDGPU_HW_IP_VCE] = "enc", 50 [AMDGPU_HW_IP_UVD_ENC] = "enc_1", 51 [AMDGPU_HW_IP_VCN_DEC] = "dec", 52 [AMDGPU_HW_IP_VCN_ENC] = "enc", 53 [AMDGPU_HW_IP_VCN_JPEG] = "jpeg", 54 }; 55 56 void amdgpu_show_fdinfo(struct seq_file *m, struct file *f) 57 { 58 struct drm_file *file = f->private_data; 59 struct amdgpu_device *adev = drm_to_adev(file->minor->dev); 60 struct amdgpu_fpriv *fpriv = file->driver_priv; 61 struct amdgpu_vm *vm = &fpriv->vm; 62 63 uint64_t vram_mem = 0, gtt_mem = 0, cpu_mem = 0; 64 ktime_t usage[AMDGPU_HW_IP_NUM]; 65 uint32_t bus, dev, fn, domain; 66 unsigned int hw_ip; 67 int ret; 68 69 bus = adev->pdev->bus->number; 70 domain = pci_domain_nr(adev->pdev->bus); 71 dev = PCI_SLOT(adev->pdev->devfn); 72 fn = PCI_FUNC(adev->pdev->devfn); 73 74 ret = amdgpu_bo_reserve(vm->root.bo, false); 75 if (ret) 76 return; 77 78 amdgpu_vm_get_memory(vm, &vram_mem, >t_mem, &cpu_mem); 79 amdgpu_bo_unreserve(vm->root.bo); 80 81 amdgpu_ctx_mgr_usage(&fpriv->ctx_mgr, usage); 82 83 /* 84 * ****************************************************************** 85 * For text output format description please see drm-usage-stats.rst! 86 * ****************************************************************** 87 */ 88 89 seq_printf(m, "pasid:\t%u\n", fpriv->vm.pasid); 90 seq_printf(m, "drm-driver:\t%s\n", file->minor->dev->driver->name); 91 seq_printf(m, "drm-pdev:\t%04x:%02x:%02x.%d\n", domain, bus, dev, fn); 92 seq_printf(m, "drm-client-id:\t%Lu\n", vm->immediate.fence_context); 93 seq_printf(m, "drm-memory-vram:\t%llu KiB\n", vram_mem/1024UL); 94 seq_printf(m, "drm-memory-gtt: \t%llu KiB\n", gtt_mem/1024UL); 95 seq_printf(m, "drm-memory-cpu: \t%llu KiB\n", cpu_mem/1024UL); 96 for (hw_ip = 0; hw_ip < AMDGPU_HW_IP_NUM; ++hw_ip) { 97 if (!usage[hw_ip]) 98 continue; 99 100 seq_printf(m, "drm-engine-%s:\t%Ld ns\n", amdgpu_ip_name[hw_ip], 101 ktime_to_ns(usage[hw_ip])); 102 } 103 } 104