diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/drm_info.c')
| -rw-r--r-- | kernel/drivers/gpu/drm/drm_info.c | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/drm_info.c b/kernel/drivers/gpu/drm/drm_info.c new file mode 100644 index 000000000..cbb4fc0fc --- /dev/null +++ b/kernel/drivers/gpu/drm/drm_info.c @@ -0,0 +1,222 @@ +/** + * \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_internal.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/.../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; +} |