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 = node->minor->dev->dev_private;
 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 = node->minor->dev->dev_private;
 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
 82int
 83qxl_debugfs_init(struct drm_minor *minor)
 84{
 85#if defined(CONFIG_DEBUG_FS)
 86	int r;
 87	struct qxl_device *dev =
 88		(struct qxl_device *) minor->dev->dev_private;
 89
 90	drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
 91				 minor->debugfs_root, minor);
 92
 93	r = qxl_ttm_debugfs_init(dev);
 94	if (r) {
 95		DRM_ERROR("Failed to init TTM debugfs\n");
 96		return r;
 97	}
 98#endif
 99	return 0;
100}
101
102int qxl_debugfs_add_files(struct qxl_device *qdev,
103			  struct drm_info_list *files,
104			  unsigned int nfiles)
105{
106	unsigned int i;
107
108	for (i = 0; i < qdev->debugfs_count; i++) {
109		if (qdev->debugfs[i].files == files) {
110			/* Already registered */
111			return 0;
112		}
113	}
114
115	i = qdev->debugfs_count + 1;
116	if (i > QXL_DEBUGFS_MAX_COMPONENTS) {
117		DRM_ERROR("Reached maximum number of debugfs components.\n");
118		DRM_ERROR("Report so we increase QXL_DEBUGFS_MAX_COMPONENTS.\n");
119		return -EINVAL;
120	}
121	qdev->debugfs[qdev->debugfs_count].files = files;
122	qdev->debugfs[qdev->debugfs_count].num_files = nfiles;
123	qdev->debugfs_count = i;
124#if defined(CONFIG_DEBUG_FS)
125	drm_debugfs_create_files(files, nfiles,
126				 qdev->ddev.primary->debugfs_root,
127				 qdev->ddev.primary);
128#endif
129	return 0;
130}