316 lines
8.9 KiB
C
316 lines
8.9 KiB
C
/**
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* \file drm_info.c
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* DRM info file implementations
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*
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* \author Ben Gamari <bgamari@gmail.com>
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*/
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/*
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* Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com
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*
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* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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* Copyright 2008 Ben Gamari <bgamari@gmail.com>
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <linux/seq_file.h>
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#include "drmP.h"
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/**
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* Called when "/proc/dri/.../name" is read.
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*
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* Prints the device name together with the bus id if available.
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*/
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int drm_name_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_minor *minor = node->minor;
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struct drm_device *dev = minor->dev;
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struct drm_master *master = minor->master;
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const char *bus_name;
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if (!master)
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return 0;
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bus_name = dev->driver->bus->get_name(dev);
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if (master->unique) {
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seq_printf(m, "%s %s %s\n",
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bus_name,
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dev_name(dev->dev), master->unique);
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} else {
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seq_printf(m, "%s %s\n",
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bus_name, dev_name(dev->dev));
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}
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return 0;
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}
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/**
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* Called when "/proc/dri/.../vm" is read.
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*
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* Prints information about all mappings in drm_device::maplist.
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*/
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int drm_vm_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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struct drm_local_map *map;
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struct drm_map_list *r_list;
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/* Hardcoded from _DRM_FRAME_BUFFER,
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_DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
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_DRM_SCATTER_GATHER and _DRM_CONSISTENT */
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const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
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const char *type;
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int i;
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mutex_lock(&dev->struct_mutex);
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seq_printf(m, "slot offset size type flags address mtrr\n\n");
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i = 0;
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list_for_each_entry(r_list, &dev->maplist, head) {
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map = r_list->map;
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if (!map)
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continue;
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if (map->type < 0 || map->type > 5)
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type = "??";
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else
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type = types[map->type];
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seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ",
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i,
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(unsigned long long)map->offset,
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map->size, type, map->flags,
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(unsigned long) r_list->user_token);
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if (map->mtrr < 0)
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seq_printf(m, "none\n");
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else
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seq_printf(m, "%4d\n", map->mtrr);
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i++;
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}
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mutex_unlock(&dev->struct_mutex);
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return 0;
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}
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/**
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* Called when "/proc/dri/.../queues" is read.
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*/
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int drm_queues_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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int i;
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struct drm_queue *q;
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mutex_lock(&dev->struct_mutex);
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seq_printf(m, " ctx/flags use fin"
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" blk/rw/rwf wait flushed queued"
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" locks\n\n");
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for (i = 0; i < dev->queue_count; i++) {
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q = dev->queuelist[i];
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atomic_inc(&q->use_count);
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seq_printf(m, "%5d/0x%03x %5d %5d"
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" %5d/%c%c/%c%c%c %5Zd\n",
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i,
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q->flags,
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atomic_read(&q->use_count),
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atomic_read(&q->finalization),
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atomic_read(&q->block_count),
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atomic_read(&q->block_read) ? 'r' : '-',
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atomic_read(&q->block_write) ? 'w' : '-',
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waitqueue_active(&q->read_queue) ? 'r' : '-',
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waitqueue_active(&q->write_queue) ? 'w' : '-',
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waitqueue_active(&q->flush_queue) ? 'f' : '-',
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DRM_BUFCOUNT(&q->waitlist));
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atomic_dec(&q->use_count);
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}
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mutex_unlock(&dev->struct_mutex);
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return 0;
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}
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/**
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* Called when "/proc/dri/.../bufs" is read.
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*/
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int drm_bufs_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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struct drm_device_dma *dma;
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int i, seg_pages;
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mutex_lock(&dev->struct_mutex);
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dma = dev->dma;
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if (!dma) {
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mutex_unlock(&dev->struct_mutex);
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return 0;
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}
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seq_printf(m, " o size count free segs pages kB\n\n");
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for (i = 0; i <= DRM_MAX_ORDER; i++) {
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if (dma->bufs[i].buf_count) {
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seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
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seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
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i,
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dma->bufs[i].buf_size,
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dma->bufs[i].buf_count,
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atomic_read(&dma->bufs[i].freelist.count),
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dma->bufs[i].seg_count,
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seg_pages,
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seg_pages * PAGE_SIZE / 1024);
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}
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}
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seq_printf(m, "\n");
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for (i = 0; i < dma->buf_count; i++) {
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if (i && !(i % 32))
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seq_printf(m, "\n");
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seq_printf(m, " %d", dma->buflist[i]->list);
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}
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seq_printf(m, "\n");
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mutex_unlock(&dev->struct_mutex);
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return 0;
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}
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/**
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* Called when "/proc/dri/.../vblank" is read.
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*/
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int drm_vblank_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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int crtc;
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mutex_lock(&dev->struct_mutex);
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for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
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seq_printf(m, "CRTC %d enable: %d\n",
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crtc, atomic_read(&dev->vblank_refcount[crtc]));
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seq_printf(m, "CRTC %d counter: %d\n",
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crtc, drm_vblank_count(dev, crtc));
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seq_printf(m, "CRTC %d last wait: %d\n",
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crtc, dev->last_vblank_wait[crtc]);
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seq_printf(m, "CRTC %d in modeset: %d\n",
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crtc, dev->vblank_inmodeset[crtc]);
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}
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mutex_unlock(&dev->struct_mutex);
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return 0;
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}
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/**
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* Called when "/proc/dri/.../clients" is read.
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*
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*/
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int drm_clients_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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struct drm_file *priv;
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mutex_lock(&dev->struct_mutex);
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seq_printf(m, "a dev pid uid magic ioctls\n\n");
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list_for_each_entry(priv, &dev->filelist, lhead) {
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seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
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priv->authenticated ? 'y' : 'n',
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priv->minor->index,
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priv->pid,
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priv->uid, priv->magic, priv->ioctl_count);
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}
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mutex_unlock(&dev->struct_mutex);
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return 0;
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}
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int drm_gem_one_name_info(int id, void *ptr, void *data)
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{
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struct drm_gem_object *obj = ptr;
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struct seq_file *m = data;
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seq_printf(m, "name %d size %zd\n", obj->name, obj->size);
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seq_printf(m, "%6d %8zd %7d %8d\n",
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obj->name, obj->size,
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atomic_read(&obj->handle_count),
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atomic_read(&obj->refcount.refcount));
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return 0;
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}
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int drm_gem_name_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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seq_printf(m, " name size handles refcount\n");
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idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
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return 0;
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}
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#if DRM_DEBUG_CODE
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int drm_vma_info(struct seq_file *m, void *data)
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{
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struct drm_info_node *node = (struct drm_info_node *) m->private;
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struct drm_device *dev = node->minor->dev;
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struct drm_vma_entry *pt;
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struct vm_area_struct *vma;
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#if defined(__i386__)
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unsigned int pgprot;
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#endif
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mutex_lock(&dev->struct_mutex);
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seq_printf(m, "vma use count: %d, high_memory = %pK, 0x%pK\n",
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atomic_read(&dev->vma_count),
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high_memory, (void *)virt_to_phys(high_memory));
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list_for_each_entry(pt, &dev->vmalist, head) {
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vma = pt->vma;
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if (!vma)
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continue;
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seq_printf(m,
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"\n%5d 0x%pK-0x%pK %c%c%c%c%c%c 0x%08lx000",
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pt->pid,
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(void *)vma->vm_start, (void *)vma->vm_end,
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vma->vm_flags & VM_READ ? 'r' : '-',
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vma->vm_flags & VM_WRITE ? 'w' : '-',
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vma->vm_flags & VM_EXEC ? 'x' : '-',
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vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
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vma->vm_flags & VM_LOCKED ? 'l' : '-',
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vma->vm_flags & VM_IO ? 'i' : '-',
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vma->vm_pgoff);
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#if defined(__i386__)
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pgprot = pgprot_val(vma->vm_page_prot);
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seq_printf(m, " %c%c%c%c%c%c%c%c%c",
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pgprot & _PAGE_PRESENT ? 'p' : '-',
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pgprot & _PAGE_RW ? 'w' : 'r',
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pgprot & _PAGE_USER ? 'u' : 's',
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pgprot & _PAGE_PWT ? 't' : 'b',
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pgprot & _PAGE_PCD ? 'u' : 'c',
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pgprot & _PAGE_ACCESSED ? 'a' : '-',
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pgprot & _PAGE_DIRTY ? 'd' : '-',
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pgprot & _PAGE_PSE ? 'm' : 'k',
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pgprot & _PAGE_GLOBAL ? 'g' : 'l');
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#endif
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seq_printf(m, "\n");
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}
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mutex_unlock(&dev->struct_mutex);
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return 0;
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}
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#endif
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