[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;

	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);
	}
	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
	60	list_for_each_entry(bo, &qdev->gem.objects, list) {
2f453ed4 ML	61	struct reservation_object_list *fobj;
	62	int rel;
	63
	64	rcu_read_lock();
	65	fobj = rcu_dereference(bo->tbo.resv->fence);
	66	rel = fobj ? fobj->shared_count : 0;
	67	rcu_read_unlock();
	68
f2c24b83 ML	69	seq_printf(m, "size %ld, pc %d, num releases %d\n",
	70	(unsigned long)bo->gem_base.size,
	71	bo->pin_count, rel);
f64122c1 DA	72	}
	73	return 0;
	74	}
	75
	76	static struct drm_info_list qxl_debugfs_list[] = {
	77	{ "irq_received", qxl_debugfs_irq_received, 0, NULL },
	78	{ "qxl_buffers", qxl_debugfs_buffers_info, 0, NULL },
	79	};
	80	#define QXL_DEBUGFS_ENTRIES ARRAY_SIZE(qxl_debugfs_list)
caaa0352	81	#endif
f64122c1 DA	82
	83	int
	84	qxl_debugfs_init(struct drm_minor *minor)
	85	{
caaa0352	86	#if defined(CONFIG_DEBUG_FS)
f64122c1 DA	87	drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
f64122c1 DA	88	minor->debugfs_root, minor);
caaa0352	89	#endif
f64122c1 DA	90	return 0;
	91	}
	92
	93	void
	94	qxl_debugfs_takedown(struct drm_minor *minor)
	95	{
caaa0352	96	#if defined(CONFIG_DEBUG_FS)
f64122c1 DA	97	drm_debugfs_remove_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
f64122c1 DA	98	minor);
caaa0352	99	#endif
f64122c1 DA	100	}
	101
	102	int qxl_debugfs_add_files(struct qxl_device *qdev,
	103	struct drm_info_list *files,
	104	unsigned nfiles)
	105	{
	106	unsigned 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->control->debugfs_root,
	127	qdev->ddev->control);
	128	drm_debugfs_create_files(files, nfiles,
	129	qdev->ddev->primary->debugfs_root,
	130	qdev->ddev->primary);
	131	#endif
	132	return 0;
	133	}
	134
	135	void qxl_debugfs_remove_files(struct qxl_device *qdev)
	136	{
	137	#if defined(CONFIG_DEBUG_FS)
	138	unsigned i;
	139
	140	for (i = 0; i < qdev->debugfs_count; i++) {
	141	drm_debugfs_remove_files(qdev->debugfs[i].files,
	142	qdev->debugfs[i].num_files,
	143	qdev->ddev->control);
	144	drm_debugfs_remove_files(qdev->debugfs[i].files,
	145	qdev->debugfs[i].num_files,
	146	qdev->ddev->primary);
	147	}
	148	#endif
	149	}