[deliverable/linux.git] / drivers / gpu / drm / qxl / qxl_debugfs.c

/*
 * Copyright (C) 2009 Red Hat <bskeggs@redhat.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

/*
 * Authors:
 *  Alon Levy <alevy@redhat.com>
 */

#include <linux/debugfs.h>

#include "drmP.h"
#include "qxl_drv.h"
#include "qxl_object.h"


#if defined(CONFIG_DEBUG_FS)
static int
qxl_debugfs_irq_received(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct qxl_device *qdev = node->minor->dev->dev_private;

	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_cursor));
	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_io_cmd));
	seq_printf(m, "%d\n", qdev->irq_received_error);
	return 0;
}

static int
qxl_debugfs_buffers_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct qxl_device *qdev = node->minor->dev->dev_private;
	struct qxl_bo *bo;

	spin_lock(&qdev->release_lock);
	list_for_each_entry(bo, &qdev->gem.objects, list) {
		struct reservation_object_list *fobj;
		int rel;

		rcu_read_lock();
		fobj = rcu_dereference(bo->tbo.resv->fence);
		rel = fobj ? fobj->shared_count : 0;
		rcu_read_unlock();

		seq_printf(m, "size %ld, pc %d, num releases %d\n",
			   (unsigned long)bo->gem_base.size,
			   bo->pin_count, rel);
	}
	spin_unlock(&qdev->release_lock);
	return 0;
}

static struct drm_info_list qxl_debugfs_list[] = {
	{ "irq_received", qxl_debugfs_irq_received, 0, NULL },
	{ "qxl_buffers", qxl_debugfs_buffers_info, 0, NULL },
};
#define QXL_DEBUGFS_ENTRIES ARRAY_SIZE(qxl_debugfs_list)
#endif

int
qxl_debugfs_init(struct drm_minor *minor)
{
#if defined(CONFIG_DEBUG_FS)
	drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
				 minor->debugfs_root, minor);
#endif
	return 0;
}

void
qxl_debugfs_takedown(struct drm_minor *minor)
{
#if defined(CONFIG_DEBUG_FS)
	drm_debugfs_remove_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
				 minor);
#endif
}

int qxl_debugfs_add_files(struct qxl_device *qdev,
			  struct drm_info_list *files,
			  unsigned nfiles)
{
	unsigned i;

	for (i = 0; i < qdev->debugfs_count; i++) {
		if (qdev->debugfs[i].files == files) {
			/* Already registered */
			return 0;
		}
	}

	i = qdev->debugfs_count + 1;
	if (i > QXL_DEBUGFS_MAX_COMPONENTS) {
		DRM_ERROR("Reached maximum number of debugfs components.\n");
		DRM_ERROR("Report so we increase QXL_DEBUGFS_MAX_COMPONENTS.\n");
		return -EINVAL;
	}
	qdev->debugfs[qdev->debugfs_count].files = files;
	qdev->debugfs[qdev->debugfs_count].num_files = nfiles;
	qdev->debugfs_count = i;
#if defined(CONFIG_DEBUG_FS)
	drm_debugfs_create_files(files, nfiles,
				 qdev->ddev->control->debugfs_root,
				 qdev->ddev->control);
	drm_debugfs_create_files(files, nfiles,
				 qdev->ddev->primary->debugfs_root,
				 qdev->ddev->primary);
#endif
	return 0;
}

void qxl_debugfs_remove_files(struct qxl_device *qdev)
{
#if defined(CONFIG_DEBUG_FS)
	unsigned i;

	for (i = 0; i < qdev->debugfs_count; i++) {
		drm_debugfs_remove_files(qdev->debugfs[i].files,
					 qdev->debugfs[i].num_files,
					 qdev->ddev->control);
		drm_debugfs_remove_files(qdev->debugfs[i].files,
					 qdev->debugfs[i].num_files,
					 qdev->ddev->primary);
	}
#endif
}
Commit	Line	Data
f64122c1 DA	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 <linux/debugfs.h>
	32
	33	#include "drmP.h"
	34	#include "qxl_drv.h"
	35	#include "qxl_object.h"
	36
	37
caaa0352	38	#if defined(CONFIG_DEBUG_FS)
f64122c1 DA	39	static int
	40	qxl_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 = node->minor->dev->dev_private;
	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
	53	static int
	54	qxl_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 = node->minor->dev->dev_private;
	58	struct qxl_bo *bo;
	59
2f453ed4	60	spin_lock(&qdev->release_lock);
f64122c1	61	list_for_each_entry(bo, &qdev->gem.objects, list) {
2f453ed4 ML	62	struct reservation_object_list *fobj;
	63	int rel;
	64
	65	rcu_read_lock();
	66	fobj = rcu_dereference(bo->tbo.resv->fence);
	67	rel = fobj ? fobj->shared_count : 0;
	68	rcu_read_unlock();
	69
f2c24b83 ML	70	seq_printf(m, "size %ld, pc %d, num releases %d\n",
	71	(unsigned long)bo->gem_base.size,
	72	bo->pin_count, rel);
f64122c1	73	}
2f453ed4	74	spin_unlock(&qdev->release_lock);
f64122c1 DA	75	return 0;
	76	}
	77
	78	static struct drm_info_list qxl_debugfs_list[] = {
	79	{ "irq_received", qxl_debugfs_irq_received, 0, NULL },
	80	{ "qxl_buffers", qxl_debugfs_buffers_info, 0, NULL },
	81	};
	82	#define QXL_DEBUGFS_ENTRIES ARRAY_SIZE(qxl_debugfs_list)
caaa0352	83	#endif
f64122c1 DA	84
	85	int
	86	qxl_debugfs_init(struct drm_minor *minor)
	87	{
caaa0352	88	#if defined(CONFIG_DEBUG_FS)
f64122c1 DA	89	drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
f64122c1 DA	90	minor->debugfs_root, minor);
caaa0352	91	#endif
f64122c1 DA	92	return 0;
	93	}
	94
	95	void
	96	qxl_debugfs_takedown(struct drm_minor *minor)
	97	{
caaa0352	98	#if defined(CONFIG_DEBUG_FS)
f64122c1 DA	99	drm_debugfs_remove_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
f64122c1 DA	100	minor);
caaa0352	101	#endif
f64122c1 DA	102	}
	103
	104	int qxl_debugfs_add_files(struct qxl_device *qdev,
	105	struct drm_info_list *files,
	106	unsigned nfiles)
	107	{
	108	unsigned i;
	109
	110	for (i = 0; i < qdev->debugfs_count; i++) {
	111	if (qdev->debugfs[i].files == files) {
	112	/* Already registered */
	113	return 0;
	114	}
	115	}
	116
	117	i = qdev->debugfs_count + 1;
	118	if (i > QXL_DEBUGFS_MAX_COMPONENTS) {
	119	DRM_ERROR("Reached maximum number of debugfs components.\n");
	120	DRM_ERROR("Report so we increase QXL_DEBUGFS_MAX_COMPONENTS.\n");
	121	return -EINVAL;
	122	}
	123	qdev->debugfs[qdev->debugfs_count].files = files;
	124	qdev->debugfs[qdev->debugfs_count].num_files = nfiles;
	125	qdev->debugfs_count = i;
	126	#if defined(CONFIG_DEBUG_FS)
	127	drm_debugfs_create_files(files, nfiles,
	128	qdev->ddev->control->debugfs_root,
	129	qdev->ddev->control);
	130	drm_debugfs_create_files(files, nfiles,
	131	qdev->ddev->primary->debugfs_root,
	132	qdev->ddev->primary);
	133	#endif
	134	return 0;
	135	}
	136
	137	void qxl_debugfs_remove_files(struct qxl_device *qdev)
	138	{
	139	#if defined(CONFIG_DEBUG_FS)
	140	unsigned i;
	141
	142	for (i = 0; i < qdev->debugfs_count; i++) {
	143	drm_debugfs_remove_files(qdev->debugfs[i].files,
	144	qdev->debugfs[i].num_files,
	145	qdev->ddev->control);
	146	drm_debugfs_remove_files(qdev->debugfs[i].files,
	147	qdev->debugfs[i].num_files,
	148	qdev->ddev->primary);
	149	}
	150	#endif
	151	}