LXR linux/drivers/gpu/drm/qxl/qxl

   1/*
   2 * Copyright (C) 2009 Red Hat <bskeggs@redhat.com>
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining
   5 * a copy of this software and associated documentation files (the
   6 * "Software"), to deal in the Software without restriction, including
   7 * without limitation the rights to use, copy, modify, merge, publish,
   8 * distribute, sublicense, and/or sell copies of the Software, and to
   9 * permit persons to whom the Software is furnished to do so, subject to
  10 * the following conditions:
  11 *
  12 * The above copyright notice and this permission notice (including the
  13 * next paragraph) shall be included in all copies or substantial
  14 * portions of the Software.
  15 *
  16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  19 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23 *
  24 */
  25
  26/*
  27 * Authors:
  28 *  Alon Levy <alevy@redhat.com>
  29 */
  30
  31#include <drm/drm_debugfs.h>
  32#include <drm/drm_file.h>
  33
  34#include "qxl_drv.h"
  35#include "qxl_object.h"
  36
  37#if defined(CONFIG_DEBUG_FS)
  38static int
  39qxl_debugfs_irq_received(struct seq_file *m, void *data)
  40{
  41        struct drm_info_node *node = (struct drm_info_node *) m->private;
  42        struct qxl_device *qdev = to_qxl(node->minor->dev);
  43
  44        seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
  45        seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
  46        seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_cursor));
  47        seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_io_cmd));
  48        seq_printf(m, "%d\n", qdev->irq_received_error);
  49        return 0;
  50}
  51
  52static int
  53qxl_debugfs_buffers_info(struct seq_file *m, void *data)
  54{
  55        struct drm_info_node *node = (struct drm_info_node *) m->private;
  56        struct qxl_device *qdev = to_qxl(node->minor->dev);
  57        struct qxl_bo *bo;
  58
  59        list_for_each_entry(bo, &qdev->gem.objects, list) {
  60                struct dma_resv_list *fobj;
  61                int rel;
  62
  63                rcu_read_lock();
  64                fobj = rcu_dereference(bo->tbo.base.resv->fence);
  65                rel = fobj ? fobj->shared_count : 0;
  66                rcu_read_unlock();
  67
  68                seq_printf(m, "size %ld, pc %d, num releases %d\n",
  69                           (unsigned long)bo->tbo.base.size,
  70                           bo->pin_count, rel);
  71        }
  72        return 0;
  73}
  74
  75static struct drm_info_list qxl_debugfs_list[] = {
  76        { "irq_received", qxl_debugfs_irq_received, 0, NULL },
  77        { "qxl_buffers", qxl_debugfs_buffers_info, 0, NULL },
  78};
  79#define QXL_DEBUGFS_ENTRIES ARRAY_SIZE(qxl_debugfs_list)
  80#endif
  81
  82void
  83qxl_debugfs_init(struct drm_minor *minor)
  84{
  85#if defined(CONFIG_DEBUG_FS)
  86        struct qxl_device *dev = to_qxl(minor->dev);
  87
  88        drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
  89                                 minor->debugfs_root, minor);
  90
  91        qxl_ttm_debugfs_init(dev);
  92#endif
  93}
  94
  95void qxl_debugfs_add_files(struct qxl_device *qdev,
  96                           struct drm_info_list *files,
  97                           unsigned int nfiles)
  98{
  99        unsigned int i;
 100
 101        for (i = 0; i < qdev->debugfs_count; i++) {
 102                if (qdev->debugfs[i].files == files) {
 103                        /* Already registered */
 104                        return;
 105                }
 106        }
 107
 108        i = qdev->debugfs_count + 1;
 109        if (i > QXL_DEBUGFS_MAX_COMPONENTS) {
 110                DRM_ERROR("Reached maximum number of debugfs components.\n");
 111                DRM_ERROR("Report so we increase QXL_DEBUGFS_MAX_COMPONENTS.\n");
 112                return;
 113        }
 114        qdev->debugfs[qdev->debugfs_count].files = files;
 115        qdev->debugfs[qdev->debugfs_count].num_files = nfiles;
 116        qdev->debugfs_count = i;
 117#if defined(CONFIG_DEBUG_FS)
 118        drm_debugfs_create_files(files, nfiles,
 119                                 qdev->ddev.primary->debugfs_root,
 120                                 qdev->ddev.primary);
 121#endif
 122}
 123