// SPDX-License-Identifier: MIT/* Copyright 2021 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: David Nieto *          Roy Sun */ #include <linux/debugfs.h>#include <linux/list.h>#include <linux/module.h>#include <linux/uaccess.h>#include <linux/reboot.h>#include <linux/syscalls.h> #include <drm/amdgpu_drm.h>#include <drm/drm_debugfs.h>#include <drm/drm_drv.h> #include "amdgpu.h"#include "amdgpu_vm.h"#include "amdgpu_gem.h"#include "amdgpu_ctx.h"#include "amdgpu_fdinfo.h"  static const char *amdgpu_ip_name[AMDGPU_HW_IP_NUM] = {	[AMDGPU_HW_IP_GFX]	=	"gfx",	[AMDGPU_HW_IP_COMPUTE]	=	"compute",	[AMDGPU_HW_IP_DMA]	=	"dma",	[AMDGPU_HW_IP_UVD]	=	"dec",	[AMDGPU_HW_IP_VCE]	=	"enc",	[AMDGPU_HW_IP_UVD_ENC]	=	"enc_1",	[AMDGPU_HW_IP_VCN_DEC]	=	"dec",	[AMDGPU_HW_IP_VCN_ENC]	=	"enc",	[AMDGPU_HW_IP_VCN_JPEG]	=	"jpeg",}; void amdgpu_show_fdinfo(struct seq_file *m, struct file *f){	struct drm_file *file = f->private_data;	struct amdgpu_device *adev = drm_to_adev(file->minor->dev);	struct amdgpu_fpriv *fpriv = file->driver_priv;	struct amdgpu_vm *vm = &fpriv->vm; 	uint64_t vram_mem = 0, gtt_mem = 0, cpu_mem = 0;	ktime_t usage[AMDGPU_HW_IP_NUM];	uint32_t bus, dev, fn, domain;	unsigned int hw_ip;	int ret; 	bus = adev->pdev->bus->number;	domain = pci_domain_nr(adev->pdev->bus);	dev = PCI_SLOT(adev->pdev->devfn);	fn = PCI_FUNC(adev->pdev->devfn); 	ret = amdgpu_bo_reserve(vm->root.bo, false);	if (ret)		return; 	amdgpu_vm_get_memory(vm, &vram_mem, &gtt_mem, &cpu_mem);	amdgpu_bo_unreserve(vm->root.bo); 	amdgpu_ctx_mgr_usage(&fpriv->ctx_mgr, usage); 	/*	 * ******************************************************************	 * For text output format description please see drm-usage-stats.rst!	 * ******************************************************************	 */ 	seq_printf(m, "pasid:\t%u\n", fpriv->vm.pasid);	seq_printf(m, "drm-driver:\t%s\n", file->minor->dev->driver->name);	seq_printf(m, "drm-pdev:\t%04x:%02x:%02x.%d\n", domain, bus, dev, fn);	seq_printf(m, "drm-client-id:\t%Lu\n", vm->immediate.fence_context);	seq_printf(m, "drm-memory-vram:\t%llu KiB\n", vram_mem/1024UL);	seq_printf(m, "drm-memory-gtt: \t%llu KiB\n", gtt_mem/1024UL);	seq_printf(m, "drm-memory-cpu: \t%llu KiB\n", cpu_mem/1024UL);	for (hw_ip = 0; hw_ip < AMDGPU_HW_IP_NUM; ++hw_ip) {		if (!usage[hw_ip])			continue; 		seq_printf(m, "drm-engine-%s:\t%Ld ns\n", amdgpu_ip_name[hw_ip],			   ktime_to_ns(usage[hw_ip]));	}}