drivers/gpu/drm/i915/i915_gem_proc.c - linux/kernel/git/torvalds/linux - Git at Google

 /*
  * Copyright © 2008 Intel Corporation
  *
  * 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 AUTHORS OR COPYRIGHT HOLDERS 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:
  *    Eric Anholt <eric@anholt.net>
  *    Keith Packard <keithp@keithp.com>
  *
  */

 #include "drmP.h"
 #include "drm.h"
 #include "i915_drm.h"
 #include "i915_drv.h"

 static int i915_gem_active_info(char *buf, char **start, off_t offset,
 				int request, int *eof, void *data)
 {
 	struct drm_minor *minor = (struct drm_minor *) data;
 	struct drm_device *dev = minor->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct drm_i915_gem_object *obj_priv;
 	int len = 0;

 	if (offset > DRM_PROC_LIMIT) {
 		*eof = 1;
 		return 0;
 	}

 	*start = &buf[offset];
 	*eof = 0;
 	DRM_PROC_PRINT("Active:\n");
 	list_for_each_entry(obj_priv, &dev_priv->mm.active_list,
 			    list)
 	{
 		struct drm_gem_object *obj = obj_priv->obj;
 		if (obj->name) {
 			DRM_PROC_PRINT("    %p(%d): %08x %08x %d\n",
 				       obj, obj->name,
 				       obj->read_domains, obj->write_domain,
 				       obj_priv->last_rendering_seqno);
 		} else {
 			DRM_PROC_PRINT("       %p: %08x %08x %d\n",
 				       obj,
 				       obj->read_domains, obj->write_domain,
 				       obj_priv->last_rendering_seqno);
 		}
 	}
 	if (len > request + offset)
 		return request;
 	*eof = 1;
 	return len - offset;
 }

 static int i915_gem_flushing_info(char *buf, char **start, off_t offset,
 				  int request, int *eof, void *data)
 {
 	struct drm_minor *minor = (struct drm_minor *) data;
 	struct drm_device *dev = minor->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct drm_i915_gem_object *obj_priv;
 	int len = 0;

 	if (offset > DRM_PROC_LIMIT) {
 		*eof = 1;
 		return 0;
 	}

 	*start = &buf[offset];
 	*eof = 0;
 	DRM_PROC_PRINT("Flushing:\n");
 	list_for_each_entry(obj_priv, &dev_priv->mm.flushing_list,
 			    list)
 	{
 		struct drm_gem_object *obj = obj_priv->obj;
 		if (obj->name) {
 			DRM_PROC_PRINT("    %p(%d): %08x %08x %d\n",
 				       obj, obj->name,
 				       obj->read_domains, obj->write_domain,
 				       obj_priv->last_rendering_seqno);
 		} else {
 			DRM_PROC_PRINT("       %p: %08x %08x %d\n", obj,
 				       obj->read_domains, obj->write_domain,
 				       obj_priv->last_rendering_seqno);
 		}
 	}
 	if (len > request + offset)
 		return request;
 	*eof = 1;
 	return len - offset;
 }

 static int i915_gem_inactive_info(char *buf, char **start, off_t offset,
 				  int request, int *eof, void *data)
 {
 	struct drm_minor *minor = (struct drm_minor *) data;
 	struct drm_device *dev = minor->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct drm_i915_gem_object *obj_priv;
 	int len = 0;

 	if (offset > DRM_PROC_LIMIT) {
 		*eof = 1;
 		return 0;
 	}

 	*start = &buf[offset];
 	*eof = 0;
 	DRM_PROC_PRINT("Inactive:\n");
 	list_for_each_entry(obj_priv, &dev_priv->mm.inactive_list,
 			    list)
 	{
 		struct drm_gem_object *obj = obj_priv->obj;
 		if (obj->name) {
 			DRM_PROC_PRINT("    %p(%d): %08x %08x %d\n",
 				       obj, obj->name,
 				       obj->read_domains, obj->write_domain,
 				       obj_priv->last_rendering_seqno);
 		} else {
 			DRM_PROC_PRINT("       %p: %08x %08x %d\n", obj,
 				       obj->read_domains, obj->write_domain,
 				       obj_priv->last_rendering_seqno);
 		}
 	}
 	if (len > request + offset)
 		return request;
 	*eof = 1;
 	return len - offset;
 }

 static int i915_gem_request_info(char *buf, char **start, off_t offset,
 				 int request, int *eof, void *data)
 {
 	struct drm_minor *minor = (struct drm_minor *) data;
 	struct drm_device *dev = minor->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct drm_i915_gem_request *gem_request;
 	int len = 0;

 	if (offset > DRM_PROC_LIMIT) {
 		*eof = 1;
 		return 0;
 	}

 	*start = &buf[offset];
 	*eof = 0;
 	DRM_PROC_PRINT("Request:\n");
 	list_for_each_entry(gem_request, &dev_priv->mm.request_list,
 			    list)
 	{
 		DRM_PROC_PRINT("    %d @ %d\n",
 			       gem_request->seqno,
 			       (int) (jiffies - gem_request->emitted_jiffies));
 	}
 	if (len > request + offset)
 		return request;
 	*eof = 1;
 	return len - offset;
 }

 static int i915_gem_seqno_info(char *buf, char **start, off_t offset,
 			       int request, int *eof, void *data)
 {
 	struct drm_minor *minor = (struct drm_minor *) data;
 	struct drm_device *dev = minor->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	int len = 0;

 	if (offset > DRM_PROC_LIMIT) {
 		*eof = 1;
 		return 0;
 	}

 	*start = &buf[offset];
 	*eof = 0;
 	if (dev_priv->hw_status_page != NULL) {
 		DRM_PROC_PRINT("Current sequence: %d\n",
 			       i915_get_gem_seqno(dev));
 	} else {
 		DRM_PROC_PRINT("Current sequence: hws uninitialized\n");
 	}
 	DRM_PROC_PRINT("Waiter sequence:  %d\n",
 		       dev_priv->mm.waiting_gem_seqno);
 	DRM_PROC_PRINT("IRQ sequence:     %d\n", dev_priv->mm.irq_gem_seqno);
 	if (len > request + offset)
 		return request;
 	*eof = 1;
 	return len - offset;
 }


 static int i915_interrupt_info(char *buf, char **start, off_t offset,
 			       int request, int *eof, void *data)
 {
 	struct drm_minor *minor = (struct drm_minor *) data;
 	struct drm_device *dev = minor->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	int len = 0;

 	if (offset > DRM_PROC_LIMIT) {
 		*eof = 1;
 		return 0;
 	}

 	*start = &buf[offset];
 	*eof = 0;
 	DRM_PROC_PRINT("Interrupt enable:    %08x\n",
 		       I915_READ(IER));
 	DRM_PROC_PRINT("Interrupt identity:  %08x\n",
 		       I915_READ(IIR));
 	DRM_PROC_PRINT("Interrupt mask:      %08x\n",
 		       I915_READ(IMR));
 	DRM_PROC_PRINT("Pipe A stat:         %08x\n",
 		       I915_READ(PIPEASTAT));
 	DRM_PROC_PRINT("Pipe B stat:         %08x\n",
 		       I915_READ(PIPEBSTAT));
 	DRM_PROC_PRINT("Interrupts received: %d\n",
 		       atomic_read(&dev_priv->irq_received));
 	if (dev_priv->hw_status_page != NULL) {
 		DRM_PROC_PRINT("Current sequence:    %d\n",
 			       i915_get_gem_seqno(dev));
 	} else {
 		DRM_PROC_PRINT("Current sequence:    hws uninitialized\n");
 	}
 	DRM_PROC_PRINT("Waiter sequence:     %d\n",
 		       dev_priv->mm.waiting_gem_seqno);
 	DRM_PROC_PRINT("IRQ sequence:        %d\n",
 		       dev_priv->mm.irq_gem_seqno);
 	if (len > request + offset)
 		return request;
 	*eof = 1;
 	return len - offset;
 }

 static int i915_hws_info(char *buf, char **start, off_t offset,
 			 int request, int *eof, void *data)
 {
 	struct drm_minor *minor = (struct drm_minor *) data;
 	struct drm_device *dev = minor->dev;
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	int len = 0, i;
 	volatile u32 *hws;

 	if (offset > DRM_PROC_LIMIT) {
 		*eof = 1;
 		return 0;
 	}

 	hws = (volatile u32 *)dev_priv->hw_status_page;
 	if (hws == NULL) {
 		*eof = 1;
 		return 0;
 	}

 	*start = &buf[offset];
 	*eof = 0;
 	for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
 		DRM_PROC_PRINT("0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
 			       i * 4,
 			       hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
 	}
 	if (len > request + offset)
 		return request;
 	*eof = 1;
 	return len - offset;
 }

 static struct drm_proc_list {
 	/** file name */
 	const char *name;
 	/** proc callback*/
 	int (*f) (char *, char **, off_t, int, int *, void *);
 } i915_gem_proc_list[] = {
 	{"i915_gem_active", i915_gem_active_info},
 	{"i915_gem_flushing", i915_gem_flushing_info},
 	{"i915_gem_inactive", i915_gem_inactive_info},
 	{"i915_gem_request", i915_gem_request_info},
 	{"i915_gem_seqno", i915_gem_seqno_info},
 	{"i915_gem_interrupt", i915_interrupt_info},
 	{"i915_gem_hws", i915_hws_info},
 };

 #define I915_GEM_PROC_ENTRIES ARRAY_SIZE(i915_gem_proc_list)

 int i915_gem_proc_init(struct drm_minor *minor)
 {
 	struct proc_dir_entry *ent;
 	int i, j;

 	for (i = 0; i < I915_GEM_PROC_ENTRIES; i++) {
 		ent = create_proc_entry(i915_gem_proc_list[i].name,
 					S_IFREG | S_IRUGO, minor->dev_root);
 		if (!ent) {
 			DRM_ERROR("Cannot create /proc/dri/.../%s\n",
 				  i915_gem_proc_list[i].name);
 			for (j = 0; j < i; j++)
 				remove_proc_entry(i915_gem_proc_list[i].name,
 						  minor->dev_root);
 			return -1;
 		}
 		ent->read_proc = i915_gem_proc_list[i].f;
 		ent->data = minor;
 	}
 	return 0;
 }

 void i915_gem_proc_cleanup(struct drm_minor *minor)
 {
 	int i;

 	if (!minor->dev_root)
 		return;

 	for (i = 0; i < I915_GEM_PROC_ENTRIES; i++)
 		remove_proc_entry(i915_gem_proc_list[i].name, minor->dev_root);
 }
	/*
	* Copyright © 2008 Intel Corporation
	*
	* 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 AUTHORS OR COPYRIGHT HOLDERS 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:
	* Eric Anholt <eric@anholt.net>
	* Keith Packard <keithp@keithp.com>
	*
	*/

	#include "drmP.h"
	#include "drm.h"
	#include "i915_drm.h"
	#include "i915_drv.h"

	static int i915_gem_active_info(char buf, char *start, off_t offset,
	int request, int eof, void data)
	{
	struct drm_minor minor = (struct drm_minor ) data;
	struct drm_device *dev = minor->dev;
	drm_i915_private_t *dev_priv = dev->dev_private;
	struct drm_i915_gem_object *obj_priv;
	int len = 0;

	if (offset > DRM_PROC_LIMIT) {
	*eof = 1;
	return 0;
	}

	*start = &buf[offset];
	*eof = 0;
	DRM_PROC_PRINT("Active:\n");
	list_for_each_entry(obj_priv, &dev_priv->mm.active_list,
	list)
	{
	struct drm_gem_object *obj = obj_priv->obj;
	if (obj->name) {
	DRM_PROC_PRINT(" %p(%d): %08x %08x %d\n",
	obj, obj->name,
	obj->read_domains, obj->write_domain,
	obj_priv->last_rendering_seqno);
	} else {
	DRM_PROC_PRINT(" %p: %08x %08x %d\n",
	obj,
	obj->read_domains, obj->write_domain,
	obj_priv->last_rendering_seqno);
	}
	}
	if (len > request + offset)
	return request;
	*eof = 1;
	return len - offset;
	}

	static int i915_gem_flushing_info(char buf, char *start, off_t offset,
	int request, int eof, void data)
	{
	struct drm_minor minor = (struct drm_minor ) data;
	struct drm_device *dev = minor->dev;
	drm_i915_private_t *dev_priv = dev->dev_private;
	struct drm_i915_gem_object *obj_priv;
	int len = 0;

	if (offset > DRM_PROC_LIMIT) {
	*eof = 1;
	return 0;
	}

	*start = &buf[offset];
	*eof = 0;
	DRM_PROC_PRINT("Flushing:\n");
	list_for_each_entry(obj_priv, &dev_priv->mm.flushing_list,
	list)
	{
	struct drm_gem_object *obj = obj_priv->obj;
	if (obj->name) {
	DRM_PROC_PRINT(" %p(%d): %08x %08x %d\n",
	obj, obj->name,
	obj->read_domains, obj->write_domain,
	obj_priv->last_rendering_seqno);
	} else {
	DRM_PROC_PRINT(" %p: %08x %08x %d\n", obj,
	obj->read_domains, obj->write_domain,
	obj_priv->last_rendering_seqno);
	}
	}
	if (len > request + offset)
	return request;
	*eof = 1;
	return len - offset;
	}

	static int i915_gem_inactive_info(char buf, char *start, off_t offset,
	int request, int eof, void data)
	{
	struct drm_minor minor = (struct drm_minor ) data;
	struct drm_device *dev = minor->dev;
	drm_i915_private_t *dev_priv = dev->dev_private;
	struct drm_i915_gem_object *obj_priv;
	int len = 0;

	if (offset > DRM_PROC_LIMIT) {
	*eof = 1;
	return 0;
	}

	*start = &buf[offset];
	*eof = 0;
	DRM_PROC_PRINT("Inactive:\n");
	list_for_each_entry(obj_priv, &dev_priv->mm.inactive_list,
	list)
	{
	struct drm_gem_object *obj = obj_priv->obj;
	if (obj->name) {
	DRM_PROC_PRINT(" %p(%d): %08x %08x %d\n",
	obj, obj->name,
	obj->read_domains, obj->write_domain,
	obj_priv->last_rendering_seqno);
	} else {
	DRM_PROC_PRINT(" %p: %08x %08x %d\n", obj,
	obj->read_domains, obj->write_domain,
	obj_priv->last_rendering_seqno);
	}
	}
	if (len > request + offset)
	return request;
	*eof = 1;
	return len - offset;
	}

	static int i915_gem_request_info(char buf, char *start, off_t offset,
	int request, int eof, void data)
	{
	struct drm_minor minor = (struct drm_minor ) data;
	struct drm_device *dev = minor->dev;
	drm_i915_private_t *dev_priv = dev->dev_private;
	struct drm_i915_gem_request *gem_request;
	int len = 0;

	if (offset > DRM_PROC_LIMIT) {
	*eof = 1;
	return 0;
	}

	*start = &buf[offset];
	*eof = 0;
	DRM_PROC_PRINT("Request:\n");
	list_for_each_entry(gem_request, &dev_priv->mm.request_list,
	list)
	{
	DRM_PROC_PRINT(" %d @ %d\n",
	gem_request->seqno,
	(int) (jiffies - gem_request->emitted_jiffies));
	}
	if (len > request + offset)
	return request;
	*eof = 1;
	return len - offset;
	}

	static int i915_gem_seqno_info(char buf, char *start, off_t offset,
	int request, int eof, void data)
	{
	struct drm_minor minor = (struct drm_minor ) data;
	struct drm_device *dev = minor->dev;
	drm_i915_private_t *dev_priv = dev->dev_private;
	int len = 0;

	if (offset > DRM_PROC_LIMIT) {
	*eof = 1;
	return 0;
	}

	*start = &buf[offset];
	*eof = 0;
	if (dev_priv->hw_status_page != NULL) {
	DRM_PROC_PRINT("Current sequence: %d\n",
	i915_get_gem_seqno(dev));
	} else {
	DRM_PROC_PRINT("Current sequence: hws uninitialized\n");
	}
	DRM_PROC_PRINT("Waiter sequence: %d\n",
	dev_priv->mm.waiting_gem_seqno);
	DRM_PROC_PRINT("IRQ sequence: %d\n", dev_priv->mm.irq_gem_seqno);
	if (len > request + offset)
	return request;
	*eof = 1;
	return len - offset;
	}


	static int i915_interrupt_info(char buf, char *start, off_t offset,
	int request, int eof, void data)
	{
	struct drm_minor minor = (struct drm_minor ) data;
	struct drm_device *dev = minor->dev;
	drm_i915_private_t *dev_priv = dev->dev_private;
	int len = 0;

	if (offset > DRM_PROC_LIMIT) {
	*eof = 1;
	return 0;
	}

	*start = &buf[offset];
	*eof = 0;
	DRM_PROC_PRINT("Interrupt enable: %08x\n",
	I915_READ(IER));
	DRM_PROC_PRINT("Interrupt identity: %08x\n",
	I915_READ(IIR));
	DRM_PROC_PRINT("Interrupt mask: %08x\n",
	I915_READ(IMR));
	DRM_PROC_PRINT("Pipe A stat: %08x\n",
	I915_READ(PIPEASTAT));
	DRM_PROC_PRINT("Pipe B stat: %08x\n",
	I915_READ(PIPEBSTAT));
	DRM_PROC_PRINT("Interrupts received: %d\n",
	atomic_read(&dev_priv->irq_received));
	if (dev_priv->hw_status_page != NULL) {
	DRM_PROC_PRINT("Current sequence: %d\n",
	i915_get_gem_seqno(dev));
	} else {
	DRM_PROC_PRINT("Current sequence: hws uninitialized\n");
	}
	DRM_PROC_PRINT("Waiter sequence: %d\n",
	dev_priv->mm.waiting_gem_seqno);
	DRM_PROC_PRINT("IRQ sequence: %d\n",
	dev_priv->mm.irq_gem_seqno);
	if (len > request + offset)
	return request;
	*eof = 1;
	return len - offset;
	}

	static int i915_hws_info(char buf, char *start, off_t offset,
	int request, int eof, void data)
	{
	struct drm_minor minor = (struct drm_minor ) data;
	struct drm_device *dev = minor->dev;
	drm_i915_private_t *dev_priv = dev->dev_private;
	int len = 0, i;
	volatile u32 *hws;

	if (offset > DRM_PROC_LIMIT) {
	*eof = 1;
	return 0;
	}

	hws = (volatile u32 *)dev_priv->hw_status_page;
	if (hws == NULL) {
	*eof = 1;
	return 0;
	}

	*start = &buf[offset];
	*eof = 0;
	for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) {
	DRM_PROC_PRINT("0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n",
	i * 4,
	hws[i], hws[i + 1], hws[i + 2], hws[i + 3]);
	}
	if (len > request + offset)
	return request;
	*eof = 1;
	return len - offset;
	}

	static struct drm_proc_list {
	/** file name */
	const char *name;
	/** proc callback*/
	int (f) (char , char *, off_t, int, int , void *);
	} i915_gem_proc_list[] = {
	{"i915_gem_active", i915_gem_active_info},
	{"i915_gem_flushing", i915_gem_flushing_info},
	{"i915_gem_inactive", i915_gem_inactive_info},
	{"i915_gem_request", i915_gem_request_info},
	{"i915_gem_seqno", i915_gem_seqno_info},
	{"i915_gem_interrupt", i915_interrupt_info},
	{"i915_gem_hws", i915_hws_info},
	};

	#define I915_GEM_PROC_ENTRIES ARRAY_SIZE(i915_gem_proc_list)

	int i915_gem_proc_init(struct drm_minor *minor)
	{
	struct proc_dir_entry *ent;
	int i, j;

	for (i = 0; i < I915_GEM_PROC_ENTRIES; i++) {
	ent = create_proc_entry(i915_gem_proc_list[i].name,
	S_IFREG \| S_IRUGO, minor->dev_root);
	if (!ent) {
	DRM_ERROR("Cannot create /proc/dri/.../%s\n",
	i915_gem_proc_list[i].name);
	for (j = 0; j < i; j++)
	remove_proc_entry(i915_gem_proc_list[i].name,
	minor->dev_root);
	return -1;
	}
	ent->read_proc = i915_gem_proc_list[i].f;
	ent->data = minor;
	}
	return 0;
	}

	void i915_gem_proc_cleanup(struct drm_minor *minor)
	{
	int i;

	if (!minor->dev_root)
	return;

	for (i = 0; i < I915_GEM_PROC_ENTRIES; i++)
	remove_proc_entry(i915_gem_proc_list[i].name, minor->dev_root);
	}