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/**

 * \file drm_stub.h

 * Stub support

 *

 * \author Rickard E. (Rik) Faith 

 */

/*

 * Created: Fri Jan 19 10:48:35 2001 by faith@acm.org

 *

 * Copyright 2001 VA Linux Systems, Inc., Sunnyvale, California.

 * All Rights Reserved.

 *

 * 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

 * PRECISION INSIGHT 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.

 */

#include 

#include 

#include 

#include 

#include 

struct va_format {

    const char *fmt;

    va_list *va;

};

unsigned int drm_debug = 0;	/* 1 to enable debug output */

EXPORT_SYMBOL(drm_debug);

unsigned int drm_rnodes = 0;	/* 1 to enable experimental render nodes API */

EXPORT_SYMBOL(drm_rnodes);

unsigned int drm_vblank_offdelay = 5000;    /* Default to 5000 msecs. */

EXPORT_SYMBOL(drm_vblank_offdelay);

unsigned int drm_timestamp_precision = 20;  /* Default to 20 usecs. */

EXPORT_SYMBOL(drm_timestamp_precision);

struct idr drm_minors_idr;

int drm_err(const char *func, const char *format, ...)

{

	struct va_format vaf;

	va_list args;

	int r;

	va_start(args, format);

	vaf.fmt = format;

	vaf.va = &args;

	r = printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* %pV", func, &vaf);

	va_end(args);

	return r;

}

EXPORT_SYMBOL(drm_err);

void drm_ut_debug_printk(unsigned int request_level,

			 const char *prefix,

			 const char *function_name,

			 const char *format, ...)

{

	struct va_format vaf;

	va_list args;

//   if (drm_debug & request_level) {

//       if (function_name)

//           printk(KERN_DEBUG "[%s:%s], ", prefix, function_name);

//       va_start(args, format);

//       vprintk(format, args);

//       va_end(args);

//   }

}

EXPORT_SYMBOL(drm_ut_debug_printk);

int drm_fill_in_dev(struct drm_device *dev,

			   const struct pci_device_id *ent,

			   struct drm_driver *driver)

{

	int retcode;

	INIT_LIST_HEAD(&dev->filelist);

	INIT_LIST_HEAD(&dev->ctxlist);

	INIT_LIST_HEAD(&dev->vmalist);

	INIT_LIST_HEAD(&dev->maplist);

	INIT_LIST_HEAD(&dev->vblank_event_list);

	spin_lock_init(&dev->count_lock);

	spin_lock_init(&dev->event_lock);

	mutex_init(&dev->struct_mutex);

	mutex_init(&dev->ctxlist_mutex);

//	if (drm_ht_create(&dev->map_hash, 12)) {

//		return -ENOMEM;

//	}

    dev->driver = driver;

	if (driver->driver_features & DRIVER_GEM) {

		retcode = drm_gem_init(dev);

		if (retcode) {

			DRM_ERROR("Cannot initialize graphics execution "

				  "manager (GEM)\n");

			goto error_out_unreg;

		}

	}

	return 0;

error_out_unreg:

//   drm_lastclose(dev);

	return retcode;

}

EXPORT_SYMBOL(drm_fill_in_dev);

/**

 * Compute size order.  Returns the exponent of the smaller power of two which

 * is greater or equal to given number.

 *

 * \param size size.

 * \return order.

 *

 * \todo Can be made faster.

 */

int drm_order(unsigned long size)

{

    int order;

    unsigned long tmp;

    for (order = 0, tmp = size >> 1; tmp; tmp >>= 1, order++) ;

    if (size & (size - 1))

        ++order;

    return order;

}

extern int x86_clflush_size;

static inline void clflush(volatile void *__p)

{

    asm volatile("clflush %0" : "+m" (*(volatile char*)__p));

}

void

drm_clflush_virt_range(char *addr, unsigned long length)

{

    char *end = addr + length;

    mb();

    for (; addr < end; addr += x86_clflush_size)

        clflush(addr);

    clflush(end - 1);

    mb();

    return;

}