drivers/staging/imgtec/rogue/pvr_drm.c - kernel/x86_64 - Git at Google

 /* -*- mode: c; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
 /* vi: set ts=8 sw=8 sts=8: */
 /*************************************************************************/ /*!
 @File
 @Title          PowerVR drm driver
 @Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
 @Description    Linux module setup
 @License        Dual MIT/GPLv2

 The contents of this file are subject to the MIT license as set out below.

 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 shall be included in
 all copies or substantial portions of the Software.

 Alternatively, the contents of this file may be used under the terms of
 the GNU General Public License Version 2 ("GPL") in which case the provisions
 of GPL are applicable instead of those above.

 If you wish to allow use of your version of this file only under the terms of
 GPL, and not to allow others to use your version of this file under the terms
 of the MIT license, indicate your decision by deleting the provisions above
 and replace them with the notice and other provisions required by GPL as set
 out in the file called "GPL-COPYING" included in this distribution. If you do
 not delete the provisions above, a recipient may use your version of this file
 under the terms of either the MIT license or GPL.

 This License is also included in this distribution in the file called
 "MIT-COPYING".

 EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) 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; AND (B) 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.
 */ /**************************************************************************/

 #if defined(SUPPORT_DRM)

 #include <linux/version.h>

 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/mm.h>
 #include <linux/proc_fs.h>
 #include <linux/sched.h>
 #include <asm/ioctl.h>
 #include <drm/drmP.h>
 #include <drm/drm.h>

 #include "allocmem.h"
 #include "img_defs.h"
 #include "services_km.h"
 #include "sysinfo.h"
 #include "mm.h"
 #include "pvr_debug.h"
 #include "srvkm.h"
 #include "handle.h"
 #include "pvr_bridge.h"
 #include "pvrmodule.h"
 #include "pvrversion.h"
 #include "linkage.h"
 #include "pvr_drm.h"
 #include "pvr_drm_shared.h"
 #if !defined(SUPPORT_KERNEL_SRVINIT)
 #include "power.h"
 #include "driverlock.h"
 #endif	/* #if !defined(SUPPORT_KERNEL_SRVINIT) */
 #include "private_data.h"
 #include "syscommon.h"
 #include "pvrsrv.h"
 #include "lists.h"
 #include "device.h"

 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0))
 #define DRIVER_RENDER 0
 #define DRM_RENDER_ALLOW 0
 #endif

 #define PVR_DRM_NAME	"pvr"
 #define PVR_DRM_DESC	"Imagination Technologies PVR DRM"
 #define	PVR_DRM_DATE	"20110701"

 /* These defines must be prefixed with "DRM_IOCTL_". */
 #define	DRM_IOCTL_PVR_SRVKM_CMD		DRM_IOWR(DRM_COMMAND_BASE + DRM_PVR_SRVKM_CMD, PVRSRV_BRIDGE_PACKAGE)

 #if defined(PDUMP)
 #define	DRM_IOCTL_PVR_DBGDRV_CMD	DRM_IOWR(DRM_COMMAND_BASE + DRM_PVR_DBGDRV_CMD, IOCTL_PACKAGE)
 #endif

 DECLARE_WAIT_QUEUE_HEAD(sWaitForInit);

 /* Once bInitComplete and bInitFailed are set, they stay set */
 IMG_BOOL bInitComplete;
 IMG_BOOL bInitFailed;

 static int PVRSRVDRMLoad(struct drm_device *dev, unsigned long flags)
 {
 	int iRes;

 	PVR_TRACE(("PVRSRVDRMLoad"));

 #if defined(LDM_PLATFORM)
 	/* The equivalent is done for PCI modesetting drivers by drm_get_pci_dev() */
 	platform_set_drvdata(dev->platformdev, dev);
 #endif

 	/* Module initialisation */
 	iRes = PVRSRVSystemInit(dev);
 	if (iRes != 0)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "%s: System initialisation failed (error = %d)", __FUNCTION__, iRes));
 		goto error_exit;
 	}

 	drm_mode_config_init(dev);

 	goto exit;

 error_exit:
 	wake_up_interruptible(&sWaitForInit);

 	bInitFailed = IMG_TRUE;

 exit:
 	bInitComplete = IMG_TRUE;

 	return iRes;
 }

 static int PVRSRVDRMUnload(struct drm_device *dev)
 {
 #if defined(LDM_PLATFORM)
 	LDM_DEV *pDevice = dev->platformdev;
 #elif defined(LDM_PCI)
 	LDM_DEV *pDevice = dev->pdev;
 #endif

 	PVR_TRACE(("PVRSRVDRMUnload"));

 	PVRSRVSystemDeInit(pDevice);

 	return 0;
 }

 static int PVRSRVDRMOpen(struct drm_device *dev, struct drm_file *file)
 {
 	while (!bInitComplete)
 	{
 		DEFINE_WAIT(sWait);

 		prepare_to_wait(&sWaitForInit, &sWait, TASK_INTERRUPTIBLE);

 		if (!bInitComplete)
 		{
 			PVR_TRACE(("%s: Waiting for module initialisation to complete", __FUNCTION__));

 			schedule();
 		}

 		finish_wait(&sWaitForInit, &sWait);

 		if (signal_pending(current))
 		{
 			return -ERESTARTSYS;
 		}
 	}

 	if (bInitFailed)
 	{
 		PVR_DPF((PVR_DBG_ERROR, "%s: Module initialisation failed", __FUNCTION__));
 		return -EINVAL;
 	}

 	return PVRSRVOpen(dev, file);
 }

 #if !defined(SUPPORT_KERNEL_SRVINIT)
 static int PVRDRMUnprivCmd(struct drm_device *dev, void *arg, struct drm_file *file)
 {
 	int ret = 0;

 	OSAcquireBridgeLock();

 	if (arg == NULL)
 	{
 		ret = -EFAULT;
 	}
 	else
 	{
 		struct drm_pvr_unpriv_cmd *psCommand = (struct drm_pvr_unpriv_cmd *)arg;

 		switch (psCommand->cmd)
 		{
 			case DRM_PVR_UNPRIV_CMD_INIT_SUCCESFUL:
 				psCommand->result = PVRSRVGetInitServerState(PVRSRV_INIT_SERVER_SUCCESSFUL) ? 1 : 0;
 				break;
 			default:
 				ret = -EFAULT;
 		}
 	}

 	OSReleaseBridgeLock();

 	return ret;
 }
 #endif /* #if !defined(SUPPORT_KERNEL_SRVINIT) */

 #if defined(PDUMP)
 static int PVRSRVDRMDbgDrvIoctl(struct drm_device *dev, void *arg, struct drm_file *pFile)
 {
 #if defined(CONFIG_COMPAT)
 	IOCTL_PACKAGE *pIP = (IOCTL_PACKAGE *) arg;
 	/* check whether the compatibility mode is required for this call */
 	if(pIP->ui32PtrSize != __SIZEOF_POINTER__)
 	{
 		return dbgdrv_ioctl_compat(dev, arg, pFile);
 	}
 #endif
 	return dbgdrv_ioctl(dev, arg, pFile);
 }
 #endif /* defined(PDUMP) */

 /*
  * The big kernel lock is taken for ioctls unless the DRM_UNLOCKED flag is set.
  * If you revise one of the driver specific ioctls, or add a new one, that has
  * DRM_UNLOCKED set then consider whether the gPVRSRVLock mutex needs to be taken.
  */
 struct drm_ioctl_desc sPVRDRMIoctls[] =
 {
 	DRM_IOCTL_DEF_DRV(PVR_SRVKM_CMD, PVRSRV_BridgeDispatchKM, DRM_RENDER_ALLOW | DRM_UNLOCKED),
 #if defined(PDUMP)
 	DRM_IOCTL_DEF_DRV(PVR_DBGDRV_CMD, PVRSRVDRMDbgDrvIoctl, DRM_RENDER_ALLOW | DRM_AUTH | DRM_UNLOCKED),
 #endif
 #if !defined(SUPPORT_KERNEL_SRVINIT)
 	DRM_IOCTL_DEF_DRV(PVR_UNPRIV_CMD, PVRDRMUnprivCmd, DRM_RENDER_ALLOW | DRM_UNLOCKED),
 #endif
 };

 #if defined(CONFIG_COMPAT)
 static drm_ioctl_compat_t *apfnPVRDRMCompatIoctls[] =
 {
 	[DRM_PVR_SRVKM_CMD] = PVRSRV_BridgeCompatDispatchKM,
 };

 static long PVRSRVDRMCompatIoctl(struct file *file,
 				 unsigned int cmd,
 				 unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
 	drm_ioctl_compat_t *pfnBridge = NULL;

 	if (nr < DRM_COMMAND_BASE)
 	{
 		return drm_compat_ioctl(file, cmd, arg);
 	}

 	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(apfnPVRDRMCompatIoctls))
 	{
 		pfnBridge = apfnPVRDRMCompatIoctls[nr - DRM_COMMAND_BASE];
 	}

 	if (pfnBridge)
 	{
 		return pfnBridge(file, cmd, arg);
 	}

 	return drm_ioctl(file, cmd, arg);
 }
 #endif /* defined(CONFIG_COMPAT) */

 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
 static const struct file_operations sPVRFileOps =
 {
 	.owner			= THIS_MODULE,
 	.open			= drm_open,
 	.release		= drm_release,
 	.unlocked_ioctl		= drm_ioctl,
 #if defined(CONFIG_COMPAT)
 	.compat_ioctl		= PVRSRVDRMCompatIoctl,
 #endif
 	.mmap			= PVRSRV_MMap,
 	.poll			= drm_poll,
 	.read			= drm_read,
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0))
 	.fasync			= drm_fasync,
 #endif
 };
 #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) */

 struct drm_driver sPVRDRMDriver =
 {
 	.driver_features	= DRIVER_MODESET | DRIVER_RENDER,

 	.dev_priv_size		= 0,
 	.load			= PVRSRVDRMLoad,
 	.unload			= PVRSRVDRMUnload,
 	.open			= PVRSRVDRMOpen,
 	.postclose		= PVRSRVRelease,

 	.ioctls			= sPVRDRMIoctls,
 	.num_ioctls		= ARRAY_SIZE(sPVRDRMIoctls),
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
 	.fops			= &sPVRFileOps,
 #else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) */
 	.fops =
 	{
 		.owner		= THIS_MODULE,
 		.open		= drm_open,
 		.release	= drm_release,
 		.unlocked_ioctl	= drm_ioctl,
 #if defined(CONFIG_COMPAT)
 		.compat_ioctl	= PVRSRVDRMCompatIoctl,
 #endif
 		.mmap		= PVRSRV_MMap,
 		.poll		= drm_poll,
 		.fasync		= drm_fasync,
 		.read		= drm_read,
 	},
 #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) */

 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0))
 #if defined(LDM_PCI)
 	.set_busid      	= drm_pci_set_busid,
 #elif defined(LDM_PLATFORM)
 	.set_busid      	= drm_platform_set_busid,
 #else
 #error "LDM_PLATFORM or LDM_PCI must be defined"
 #endif
 #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)) */

 	.name			= PVR_DRM_NAME,
 	.desc			= PVR_DRM_DESC,
 	.date			= PVR_DRM_DATE,
 	.major			= PVRVERSION_MAJ,
 	.minor			= PVRVERSION_MIN,
 	.patchlevel		= PVRVERSION_BUILD,

 };
 #endif	/* defined(SUPPORT_DRM) */
	/* -- mode: c; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -- */
	/* vi: set ts=8 sw=8 sts=8: */
	/************************************************************************/ /!
	@File
	@Title PowerVR drm driver
	@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
	@Description Linux module setup
	@License Dual MIT/GPLv2

	The contents of this file are subject to the MIT license as set out below.

	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 shall be included in
	all copies or substantial portions of the Software.

	Alternatively, the contents of this file may be used under the terms of
	the GNU General Public License Version 2 ("GPL") in which case the provisions
	of GPL are applicable instead of those above.

	If you wish to allow use of your version of this file only under the terms of
	GPL, and not to allow others to use your version of this file under the terms
	of the MIT license, indicate your decision by deleting the provisions above
	and replace them with the notice and other provisions required by GPL as set
	out in the file called "GPL-COPYING" included in this distribution. If you do
	not delete the provisions above, a recipient may use your version of this file
	under the terms of either the MIT license or GPL.

	This License is also included in this distribution in the file called
	"MIT-COPYING".

	EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) 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; AND (B) 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.
	/ /*************************************************************************/

	#if defined(SUPPORT_DRM)

	#include <linux/version.h>

	#include <linux/init.h>
	#include <linux/kernel.h>
	#include <linux/module.h>
	#include <linux/fs.h>
	#include <linux/mm.h>
	#include <linux/proc_fs.h>
	#include <linux/sched.h>
	#include <asm/ioctl.h>
	#include <drm/drmP.h>
	#include <drm/drm.h>

	#include "allocmem.h"
	#include "img_defs.h"
	#include "services_km.h"
	#include "sysinfo.h"
	#include "mm.h"
	#include "pvr_debug.h"
	#include "srvkm.h"
	#include "handle.h"
	#include "pvr_bridge.h"
	#include "pvrmodule.h"
	#include "pvrversion.h"
	#include "linkage.h"
	#include "pvr_drm.h"
	#include "pvr_drm_shared.h"
	#if !defined(SUPPORT_KERNEL_SRVINIT)
	#include "power.h"
	#include "driverlock.h"
	#endif /* #if !defined(SUPPORT_KERNEL_SRVINIT) */
	#include "private_data.h"
	#include "syscommon.h"
	#include "pvrsrv.h"
	#include "lists.h"
	#include "device.h"

	#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0))
	#define DRIVER_RENDER 0
	#define DRM_RENDER_ALLOW 0
	#endif

	#define PVR_DRM_NAME "pvr"
	#define PVR_DRM_DESC "Imagination Technologies PVR DRM"
	#define PVR_DRM_DATE "20110701"

	/* These defines must be prefixed with "DRM_IOCTL_". */
	#define DRM_IOCTL_PVR_SRVKM_CMD DRM_IOWR(DRM_COMMAND_BASE + DRM_PVR_SRVKM_CMD, PVRSRV_BRIDGE_PACKAGE)

	#if defined(PDUMP)
	#define DRM_IOCTL_PVR_DBGDRV_CMD DRM_IOWR(DRM_COMMAND_BASE + DRM_PVR_DBGDRV_CMD, IOCTL_PACKAGE)
	#endif

	DECLARE_WAIT_QUEUE_HEAD(sWaitForInit);

	/* Once bInitComplete and bInitFailed are set, they stay set */
	IMG_BOOL bInitComplete;
	IMG_BOOL bInitFailed;

	static int PVRSRVDRMLoad(struct drm_device *dev, unsigned long flags)
	{
	int iRes;

	PVR_TRACE(("PVRSRVDRMLoad"));

	#if defined(LDM_PLATFORM)
	/* The equivalent is done for PCI modesetting drivers by drm_get_pci_dev() */
	platform_set_drvdata(dev->platformdev, dev);
	#endif

	/* Module initialisation */
	iRes = PVRSRVSystemInit(dev);
	if (iRes != 0)
	{
	PVR_DPF((PVR_DBG_ERROR, "%s: System initialisation failed (error = %d)", __FUNCTION__, iRes));
	goto error_exit;
	}

	drm_mode_config_init(dev);

	goto exit;

	error_exit:
	wake_up_interruptible(&sWaitForInit);

	bInitFailed = IMG_TRUE;

	exit:
	bInitComplete = IMG_TRUE;

	return iRes;
	}

	static int PVRSRVDRMUnload(struct drm_device *dev)
	{
	#if defined(LDM_PLATFORM)
	LDM_DEV *pDevice = dev->platformdev;
	#elif defined(LDM_PCI)
	LDM_DEV *pDevice = dev->pdev;
	#endif

	PVR_TRACE(("PVRSRVDRMUnload"));

	PVRSRVSystemDeInit(pDevice);

	return 0;
	}

	static int PVRSRVDRMOpen(struct drm_device dev, struct drm_file file)
	{
	while (!bInitComplete)
	{
	DEFINE_WAIT(sWait);

	prepare_to_wait(&sWaitForInit, &sWait, TASK_INTERRUPTIBLE);

	if (!bInitComplete)
	{
	PVR_TRACE(("%s: Waiting for module initialisation to complete", __FUNCTION__));

	schedule();
	}

	finish_wait(&sWaitForInit, &sWait);

	if (signal_pending(current))
	{
	return -ERESTARTSYS;
	}
	}

	if (bInitFailed)
	{
	PVR_DPF((PVR_DBG_ERROR, "%s: Module initialisation failed", __FUNCTION__));
	return -EINVAL;
	}

	return PVRSRVOpen(dev, file);
	}

	#if !defined(SUPPORT_KERNEL_SRVINIT)
	static int PVRDRMUnprivCmd(struct drm_device dev, void arg, struct drm_file *file)
	{
	int ret = 0;

	OSAcquireBridgeLock();

	if (arg == NULL)
	{
	ret = -EFAULT;
	}
	else
	{
	struct drm_pvr_unpriv_cmd psCommand = (struct drm_pvr_unpriv_cmd )arg;

	switch (psCommand->cmd)
	{
	case DRM_PVR_UNPRIV_CMD_INIT_SUCCESFUL:
	psCommand->result = PVRSRVGetInitServerState(PVRSRV_INIT_SERVER_SUCCESSFUL) ? 1 : 0;
	break;
	default:
	ret = -EFAULT;
	}
	}

	OSReleaseBridgeLock();

	return ret;
	}
	#endif /* #if !defined(SUPPORT_KERNEL_SRVINIT) */

	#if defined(PDUMP)
	static int PVRSRVDRMDbgDrvIoctl(struct drm_device dev, void arg, struct drm_file *pFile)
	{
	#if defined(CONFIG_COMPAT)
	IOCTL_PACKAGE pIP = (IOCTL_PACKAGE ) arg;
	/* check whether the compatibility mode is required for this call */
	if(pIP->ui32PtrSize != __SIZEOF_POINTER__)
	{
	return dbgdrv_ioctl_compat(dev, arg, pFile);
	}
	#endif
	return dbgdrv_ioctl(dev, arg, pFile);
	}
	#endif /* defined(PDUMP) */

	/*
	* The big kernel lock is taken for ioctls unless the DRM_UNLOCKED flag is set.
	* If you revise one of the driver specific ioctls, or add a new one, that has
	* DRM_UNLOCKED set then consider whether the gPVRSRVLock mutex needs to be taken.
	*/
	struct drm_ioctl_desc sPVRDRMIoctls[] =
	{
	DRM_IOCTL_DEF_DRV(PVR_SRVKM_CMD, PVRSRV_BridgeDispatchKM, DRM_RENDER_ALLOW \| DRM_UNLOCKED),
	#if defined(PDUMP)
	DRM_IOCTL_DEF_DRV(PVR_DBGDRV_CMD, PVRSRVDRMDbgDrvIoctl, DRM_RENDER_ALLOW \| DRM_AUTH \| DRM_UNLOCKED),
	#endif
	#if !defined(SUPPORT_KERNEL_SRVINIT)
	DRM_IOCTL_DEF_DRV(PVR_UNPRIV_CMD, PVRDRMUnprivCmd, DRM_RENDER_ALLOW \| DRM_UNLOCKED),
	#endif
	};

	#if defined(CONFIG_COMPAT)
	static drm_ioctl_compat_t *apfnPVRDRMCompatIoctls[] =
	{
	[DRM_PVR_SRVKM_CMD] = PVRSRV_BridgeCompatDispatchKM,
	};

	static long PVRSRVDRMCompatIoctl(struct file *file,
	unsigned int cmd,
	unsigned long arg)
	{
	unsigned int nr = DRM_IOCTL_NR(cmd);
	drm_ioctl_compat_t *pfnBridge = NULL;

	if (nr < DRM_COMMAND_BASE)
	{
	return drm_compat_ioctl(file, cmd, arg);
	}

	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(apfnPVRDRMCompatIoctls))
	{
	pfnBridge = apfnPVRDRMCompatIoctls[nr - DRM_COMMAND_BASE];
	}

	if (pfnBridge)
	{
	return pfnBridge(file, cmd, arg);
	}

	return drm_ioctl(file, cmd, arg);
	}
	#endif /* defined(CONFIG_COMPAT) */

	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
	static const struct file_operations sPVRFileOps =
	{
	.owner = THIS_MODULE,
	.open = drm_open,
	.release = drm_release,
	.unlocked_ioctl = drm_ioctl,
	#if defined(CONFIG_COMPAT)
	.compat_ioctl = PVRSRVDRMCompatIoctl,
	#endif
	.mmap = PVRSRV_MMap,
	.poll = drm_poll,
	.read = drm_read,
	#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0))
	.fasync = drm_fasync,
	#endif
	};
	#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) */

	struct drm_driver sPVRDRMDriver =
	{
	.driver_features = DRIVER_MODESET \| DRIVER_RENDER,

	.dev_priv_size = 0,
	.load = PVRSRVDRMLoad,
	.unload = PVRSRVDRMUnload,
	.open = PVRSRVDRMOpen,
	.postclose = PVRSRVRelease,

	.ioctls = sPVRDRMIoctls,
	.num_ioctls = ARRAY_SIZE(sPVRDRMIoctls),
	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
	.fops = &sPVRFileOps,
	#else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) */
	.fops =
	{
	.owner = THIS_MODULE,
	.open = drm_open,
	.release = drm_release,
	.unlocked_ioctl = drm_ioctl,
	#if defined(CONFIG_COMPAT)
	.compat_ioctl = PVRSRVDRMCompatIoctl,
	#endif
	.mmap = PVRSRV_MMap,
	.poll = drm_poll,
	.fasync = drm_fasync,
	.read = drm_read,
	},
	#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)) */

	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0))
	#if defined(LDM_PCI)
	.set_busid = drm_pci_set_busid,
	#elif defined(LDM_PLATFORM)
	.set_busid = drm_platform_set_busid,
	#else
	#error "LDM_PLATFORM or LDM_PCI must be defined"
	#endif
	#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)) */

	.name = PVR_DRM_NAME,
	.desc = PVR_DRM_DESC,
	.date = PVR_DRM_DATE,
	.major = PVRVERSION_MAJ,
	.minor = PVRVERSION_MIN,
	.patchlevel = PVRVERSION_BUILD,

	};
	#endif /* defined(SUPPORT_DRM) */