qxl_debugfs.c

  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#include <drm/drm_print.h>
 34
 35#include "qxl_drv.h"
 36#include "qxl_object.h"
 37
 38#if defined(CONFIG_DEBUG_FS)
 39static int
 40qxl_debugfs_irq_received(struct seq_file *m, void *data)
 41{
 42	struct drm_info_node *node = (struct drm_info_node *) m->private;
 43	struct qxl_device *qdev = to_qxl(node->minor->dev);
 44
 45	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
 46	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
 47	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_cursor));
 48	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_io_cmd));
 49	seq_printf(m, "%d\n", qdev->irq_received_error);
 50	return 0;
 51}
 52
 53static int
 54qxl_debugfs_buffers_info(struct seq_file *m, void *data)
 55{
 56	struct drm_info_node *node = (struct drm_info_node *) m->private;
 57	struct qxl_device *qdev = to_qxl(node->minor->dev);
 58	struct qxl_bo *bo;
 59
 60	list_for_each_entry(bo, &qdev->gem.objects, list) {
 61		struct dma_resv_iter cursor;
 62		struct dma_fence *fence;
 63		int rel = 0;
 64
 65		dma_resv_iter_begin(&cursor, bo->tbo.base.resv,
 66				    DMA_RESV_USAGE_BOOKKEEP);
 67		dma_resv_for_each_fence_unlocked(&cursor, fence) {
 68			if (dma_resv_iter_is_restarted(&cursor))
 69				rel = 0;
 70			++rel;
 71		}
 72
 73		seq_printf(m, "size %ld, pc %d, num releases %d\n",
 74			   (unsigned long)bo->tbo.base.size,
 75			   bo->tbo.pin_count, rel);
 76	}
 77	return 0;
 78}
 79
 80static struct drm_info_list qxl_debugfs_list[] = {
 81	{ "irq_received", qxl_debugfs_irq_received, 0, NULL },
 82	{ "qxl_buffers", qxl_debugfs_buffers_info, 0, NULL },
 83};
 84#define QXL_DEBUGFS_ENTRIES ARRAY_SIZE(qxl_debugfs_list)
 85#endif
 86
 87void
 88qxl_debugfs_init(struct drm_minor *minor)
 89{
 90#if defined(CONFIG_DEBUG_FS)
 91	struct qxl_device *dev = to_qxl(minor->dev);
 92
 93	drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
 94				 minor->debugfs_root, minor);
 95
 96	qxl_ttm_debugfs_init(dev);
 97#endif
 98}
 99
100void qxl_debugfs_add_files(struct qxl_device *qdev,
101			   struct drm_info_list *files,
102			   unsigned int nfiles)
103{
104	unsigned int i;
105
106	for (i = 0; i < qdev->debugfs_count; i++) {
107		if (qdev->debugfs[i].files == files) {
108			/* Already registered */
109			return;
110		}
111	}
112
113	i = qdev->debugfs_count + 1;
114	if (i > QXL_DEBUGFS_MAX_COMPONENTS) {
115		DRM_ERROR("Reached maximum number of debugfs components.\n");
116		DRM_ERROR("Report so we increase QXL_DEBUGFS_MAX_COMPONENTS.\n");
117		return;
118	}
119	qdev->debugfs[qdev->debugfs_count].files = files;
120	qdev->debugfs[qdev->debugfs_count].num_files = nfiles;
121	qdev->debugfs_count = i;
122#if defined(CONFIG_DEBUG_FS)
123	drm_debugfs_create_files(files, nfiles,
124				 qdev->ddev.primary->debugfs_root,
125				 qdev->ddev.primary);
126#endif
127}