drm_info.rar_V2

/** * \file drm_info.c * DRM info file implementations * * \author Ben Gamari <bgamari@gmail.com> */ /* * Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com * * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * Copyright 2008 Ben Gamari <bgamari@gmail.com> * All Rights Reserved. * * 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 (including the next * paragraph) 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 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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. */ #include <linux/seq_file.h> #include <drm/drmP.h> #include <drm/drm_gem.h> #include "drm_legacy.h" /** * Called when "/proc/dri/.../name" is read. * * Prints the device name together with the bus id if available. */ int drm_name_info(struct seq_file *m, void *data) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_minor *minor = node->minor; struct drm_device *dev = minor->dev; struct drm_master *master = minor->master; if (!master) return 0; if (master->unique) { seq_printf(m, "%s %s %s\n", dev->driver->name, dev_name(dev->dev), master->unique); } else { seq_printf(m, "%s %s\n", dev->driver->name, dev_name(dev->dev)); } return 0; } /** * Called when "/proc/dri/.../vm" is read. * * Prints information about all mappings in drm_device::maplist. */ int drm_vm_info(struct seq_file *m, void *data) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; struct drm_local_map *map; struct drm_map_list *r_list; /* Hardcoded from _DRM_FRAME_BUFFER, _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and _DRM_SCATTER_GATHER and _DRM_CONSISTENT */ const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" }; const char *type; int i; mutex_lock(&dev->struct_mutex); seq_printf(m, "slot offset size type flags address mtrr\n\n"); i = 0; list_for_each_entry(r_list, &dev->maplist, head) { map = r_list->map; if (!map) continue; if (map->type < 0 || map->type > 5) type = "??"; else type = types[map->type]; seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ", i, (unsigned long long)map->offset, map->size, type, map->flags, (unsigned long) r_list->user_token); if (map->mtrr < 0) seq_printf(m, "none\n"); else seq_printf(m, "%4d\n", map->mtrr); i++; } mutex_unlock(&dev->struct_mutex); return 0; } /** * Called when "/proc/dri/.../bufs" is read. */ int drm_bufs_info(struct seq_file *m, void *data) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; struct drm_device_dma *dma; int i, seg_pages; mutex_lock(&dev->struct_mutex); dma = dev->dma; if (!dma) { mutex_unlock(&dev->struct_mutex); return 0; } seq_printf(m, " o size count free segs pages kB\n\n"); for (i = 0; i <= DRM_MAX_ORDER; i++) { if (dma->bufs[i].buf_count) { seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order); seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n", i, dma->bufs[i].buf_size, dma->bufs[i].buf_count, 0, dma->bufs[i].seg_count, seg_pages, seg_pages * PAGE_SIZE / 1024); } } seq_printf(m, "\n"); for (i = 0; i < dma->buf_count; i++) { if (i && !(i % 32)) seq_printf(m, "\n"); seq_printf(m, " %d", dma->buflist[i]->list); } seq_printf(m, "\n"); mutex_unlock(&dev->struct_mutex); return 0; } /** * Called when "/proc/dri/.../vblank" is read. */ int drm_vblank_info(struct seq_file *m, void *data) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; int crtc; mutex_lock(&dev->struct_mutex); for (crtc = 0; crtc < dev->num_crtcs; crtc++) { seq_printf(m, "CRTC %d enable: %d\n", crtc, atomic_read(&dev->vblank[crtc].refcount)); seq_printf(m, "CRTC %d counter: %d\n", crtc, drm_vblank_count(dev, crtc)); seq_printf(m, "CRTC %d last wait: %d\n", crtc, dev->vblank[crtc].last_wait); seq_printf(m, "CRTC %d in modeset: %d\n", crtc, dev->vblank[crtc].inmodeset); } mutex_unlock(&dev->struct_mutex); return 0; } /** * Called when "/proc/dri/.../clients" is read. * */ int drm_clients_info(struct seq_file *m, void *data) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; struct drm_file *priv; seq_printf(m, "%20s %5s %3s master a %5s %10s\n", "command", "pid", "dev", "uid", "magic"); /* dev->filelist is sorted youngest first, but we want to present * oldest first (i.e. kernel, servers, clients), so walk backwardss. */ mutex_lock(&dev->struct_mutex); list_for_each_entry_reverse(priv, &dev->filelist, lhead) { struct task_struct *task; rcu_read_lock(); /* locks pid_task()->comm */ task = pid_task(priv->pid, PIDTYPE_PID); seq_printf(m, "%20s %5d %3d %c %c %5d %10u\n", task ? task->comm : "<unknown>", pid_vnr(priv->pid), priv->minor->index, priv->is_master ? 'y' : 'n', priv->authenticated ? 'y' : 'n', from_kuid_munged(seq_user_ns(m), priv->uid), priv->magic); rcu_read_unlock(); } mutex_unlock(&dev->struct_mutex); return 0; } static int drm_gem_one_name_info(int id, void *ptr, void *data) { struct drm_gem_object *obj = ptr; struct seq_file *m = data; seq_printf(m, "%6d %8zd %7d %8d\n", obj->name, obj->size, obj->handle_count, atomic_read(&obj->refcount.refcount)); return 0; } int drm_gem_name_info(struct seq_file *m, void *data) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; seq_printf(m, " name size handles refcount\n"); mutex_lock(&dev->object_name_lock); idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m); mutex_unlock(&dev->object_name_lock); return 0; }