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_iter cursor;
 61		struct dma_fence *fence;
 62		int rel = 0;
 63
 64		dma_resv_iter_begin(&cursor, bo->tbo.base.resv,
 65				    DMA_RESV_USAGE_BOOKKEEP);
 66		dma_resv_for_each_fence_unlocked(&cursor, fence) {
 67			if (dma_resv_iter_is_restarted(&cursor))
 68				rel = 0;
 69			++rel;
 70		}
 71
 72		seq_printf(m, "size %ld, pc %d, num releases %d\n",
 73			   (unsigned long)bo->tbo.base.size,
 74			   bo->tbo.pin_count, rel);
 75	}
 76	return 0;
 77}
 78
 79static struct drm_info_list qxl_debugfs_list[] = {
 80	{ "irq_received", qxl_debugfs_irq_received, 0, NULL },
 81	{ "qxl_buffers", qxl_debugfs_buffers_info, 0, NULL },
 82};
 83#define QXL_DEBUGFS_ENTRIES ARRAY_SIZE(qxl_debugfs_list)
 84#endif
 85
 86void
 87qxl_debugfs_init(struct drm_minor *minor)
 88{
 89#if defined(CONFIG_DEBUG_FS)
 90	struct qxl_device *dev = to_qxl(minor->dev);
 91
 92	drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
 93				 minor->debugfs_root, minor);
 94
 95	qxl_ttm_debugfs_init(dev);
 96#endif
 97}
 98
 99void qxl_debugfs_add_files(struct qxl_device *qdev,
100			   struct drm_info_list *files,
101			   unsigned int nfiles)
102{
103	unsigned int i;
104
105	for (i = 0; i < qdev->debugfs_count; i++) {
106		if (qdev->debugfs[i].files == files) {
107			/* Already registered */
108			return;
109		}
110	}
111
112	i = qdev->debugfs_count + 1;
113	if (i > QXL_DEBUGFS_MAX_COMPONENTS) {
114		DRM_ERROR("Reached maximum number of debugfs components.\n");
115		DRM_ERROR("Report so we increase QXL_DEBUGFS_MAX_COMPONENTS.\n");
116		return;
117	}
118	qdev->debugfs[qdev->debugfs_count].files = files;
119	qdev->debugfs[qdev->debugfs_count].num_files = nfiles;
120	qdev->debugfs_count = i;
121#if defined(CONFIG_DEBUG_FS)
122	drm_debugfs_create_files(files, nfiles,
123				 qdev->ddev.primary->debugfs_root,
124				 qdev->ddev.primary);
125#endif
126}