drivers/char/drm/via_drm.h - kernel/msm-4.9 - Gitiles

 /*
  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
  * Copyright 2001-2003 S3 Graphics, Inc. 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, sub license,
  * 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  * VIA, S3 GRAPHICS, 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.
  */
 #ifndef _VIA_DRM_H_
 #define _VIA_DRM_H_

 /* WARNING: These defines must be the same as what the Xserver uses.
  * if you change them, you must change the defines in the Xserver.
  */

 #ifndef _VIA_DEFINES_
 #define _VIA_DEFINES_

 #ifndef __KERNEL__
 #include "via_drmclient.h"
 #endif

 #define VIA_NR_SAREA_CLIPRECTS 		8
 #define VIA_NR_XVMC_PORTS               10
 #define VIA_NR_XVMC_LOCKS               5
 #define VIA_MAX_CACHELINE_SIZE          64
 #define XVMCLOCKPTR(saPriv,lockNo)					\
 	((volatile drm_hw_lock_t *)(((((unsigned long) (saPriv)->XvMCLockArea) + \
 				      (VIA_MAX_CACHELINE_SIZE - 1)) &	\
 				     ~(VIA_MAX_CACHELINE_SIZE - 1)) +	\
 				    VIA_MAX_CACHELINE_SIZE*(lockNo)))

 /* Each region is a minimum of 64k, and there are at most 64 of them.
  */
 #define VIA_NR_TEX_REGIONS 64
 #define VIA_LOG_MIN_TEX_REGION_SIZE 16
 #endif

 #define VIA_UPLOAD_TEX0IMAGE  0x1	/* handled clientside */
 #define VIA_UPLOAD_TEX1IMAGE  0x2	/* handled clientside */
 #define VIA_UPLOAD_CTX        0x4
 #define VIA_UPLOAD_BUFFERS    0x8
 #define VIA_UPLOAD_TEX0       0x10
 #define VIA_UPLOAD_TEX1       0x20
 #define VIA_UPLOAD_CLIPRECTS  0x40
 #define VIA_UPLOAD_ALL        0xff

 /* VIA specific ioctls */
 #define DRM_VIA_ALLOCMEM	0x00
 #define DRM_VIA_FREEMEM	        0x01
 #define DRM_VIA_AGP_INIT	0x02
 #define DRM_VIA_FB_INIT	        0x03
 #define DRM_VIA_MAP_INIT	0x04
 #define DRM_VIA_DEC_FUTEX       0x05
 #define NOT_USED
 #define DRM_VIA_DMA_INIT	0x07
 #define DRM_VIA_CMDBUFFER	0x08
 #define DRM_VIA_FLUSH	        0x09
 #define DRM_VIA_PCICMD	        0x0a
 #define DRM_VIA_CMDBUF_SIZE	0x0b
 #define NOT_USED
 #define DRM_VIA_WAIT_IRQ        0x0d
 #define DRM_VIA_DMA_BLIT        0x0e
 #define DRM_VIA_BLIT_SYNC       0x0f

 #define DRM_IOCTL_VIA_ALLOCMEM	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_ALLOCMEM, drm_via_mem_t)
 #define DRM_IOCTL_VIA_FREEMEM	  DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_FREEMEM, drm_via_mem_t)
 #define DRM_IOCTL_VIA_AGP_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_AGP_INIT, drm_via_agp_t)
 #define DRM_IOCTL_VIA_FB_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_FB_INIT, drm_via_fb_t)
 #define DRM_IOCTL_VIA_MAP_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_MAP_INIT, drm_via_init_t)
 #define DRM_IOCTL_VIA_DEC_FUTEX   DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_DEC_FUTEX, drm_via_futex_t)
 #define DRM_IOCTL_VIA_DMA_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_DMA_INIT, drm_via_dma_init_t)
 #define DRM_IOCTL_VIA_CMDBUFFER	  DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_CMDBUFFER, drm_via_cmdbuffer_t)
 #define DRM_IOCTL_VIA_FLUSH	  DRM_IO(  DRM_COMMAND_BASE + DRM_VIA_FLUSH)
 #define DRM_IOCTL_VIA_PCICMD	  DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_PCICMD, drm_via_cmdbuffer_t)
 #define DRM_IOCTL_VIA_CMDBUF_SIZE DRM_IOWR( DRM_COMMAND_BASE + DRM_VIA_CMDBUF_SIZE, \
 					    drm_via_cmdbuf_size_t)
 #define DRM_IOCTL_VIA_WAIT_IRQ    DRM_IOWR( DRM_COMMAND_BASE + DRM_VIA_WAIT_IRQ, drm_via_irqwait_t)
 #define DRM_IOCTL_VIA_DMA_BLIT    DRM_IOW(DRM_COMMAND_BASE + DRM_VIA_DMA_BLIT, drm_via_dmablit_t)
 #define DRM_IOCTL_VIA_BLIT_SYNC   DRM_IOW(DRM_COMMAND_BASE + DRM_VIA_BLIT_SYNC, drm_via_blitsync_t)

 /* Indices into buf.Setup where various bits of state are mirrored per
  * context and per buffer.  These can be fired at the card as a unit,
  * or in a piecewise fashion as required.
  */

 #define VIA_TEX_SETUP_SIZE 8

 /* Flags for clear ioctl
  */
 #define VIA_FRONT   0x1
 #define VIA_BACK    0x2
 #define VIA_DEPTH   0x4
 #define VIA_STENCIL 0x8
 #define VIA_MEM_VIDEO   0	/* matches drm constant */
 #define VIA_MEM_AGP     1	/* matches drm constant */
 #define VIA_MEM_SYSTEM  2
 #define VIA_MEM_MIXED   3
 #define VIA_MEM_UNKNOWN 4

 typedef struct {
 	uint32_t offset;
 	uint32_t size;
 } drm_via_agp_t;

 typedef struct {
 	uint32_t offset;
 	uint32_t size;
 } drm_via_fb_t;

 typedef struct {
 	uint32_t context;
 	uint32_t type;
 	uint32_t size;
 	unsigned long index;
 	unsigned long offset;
 } drm_via_mem_t;

 typedef struct _drm_via_init {
 	enum {
 		VIA_INIT_MAP = 0x01,
 		VIA_CLEANUP_MAP = 0x02
 	} func;

 	unsigned long sarea_priv_offset;
 	unsigned long fb_offset;
 	unsigned long mmio_offset;
 	unsigned long agpAddr;
 } drm_via_init_t;

 typedef struct _drm_via_futex {
 	enum {
 		VIA_FUTEX_WAIT = 0x00,
 		VIA_FUTEX_WAKE = 0X01
 	} func;
 	uint32_t ms;
 	uint32_t lock;
 	uint32_t val;
 } drm_via_futex_t;

 typedef struct _drm_via_dma_init {
 	enum {
 		VIA_INIT_DMA = 0x01,
 		VIA_CLEANUP_DMA = 0x02,
 		VIA_DMA_INITIALIZED = 0x03
 	} func;

 	unsigned long offset;
 	unsigned long size;
 	unsigned long reg_pause_addr;
 } drm_via_dma_init_t;

 typedef struct _drm_via_cmdbuffer {
 	char __user *buf;
 	unsigned long size;
 } drm_via_cmdbuffer_t;

 /* Warning: If you change the SAREA structure you must change the Xserver
  * structure as well */

 typedef struct _drm_via_tex_region {
 	unsigned char next, prev;	/* indices to form a circular LRU  */
 	unsigned char inUse;	/* owned by a client, or free? */
 	int age;		/* tracked by clients to update local LRU's */
 } drm_via_tex_region_t;

 typedef struct _drm_via_sarea {
 	unsigned int dirty;
 	unsigned int nbox;
 	drm_clip_rect_t boxes[VIA_NR_SAREA_CLIPRECTS];
 	drm_via_tex_region_t texList[VIA_NR_TEX_REGIONS + 1];
 	int texAge;		/* last time texture was uploaded */
 	int ctxOwner;		/* last context to upload state */
 	int vertexPrim;

 	/*
 	 * Below is for XvMC.
 	 * We want the lock integers alone on, and aligned to, a cache line.
 	 * Therefore this somewhat strange construct.
 	 */

 	char XvMCLockArea[VIA_MAX_CACHELINE_SIZE * (VIA_NR_XVMC_LOCKS + 1)];

 	unsigned int XvMCDisplaying[VIA_NR_XVMC_PORTS];
 	unsigned int XvMCSubPicOn[VIA_NR_XVMC_PORTS];
 	unsigned int XvMCCtxNoGrabbed;	/* Last context to hold decoder */

 	/* Used by the 3d driver only at this point, for pageflipping:
 	 */
 	unsigned int pfCurrentOffset;
 } drm_via_sarea_t;

 typedef struct _drm_via_cmdbuf_size {
 	enum {
 		VIA_CMDBUF_SPACE = 0x01,
 		VIA_CMDBUF_LAG = 0x02
 	} func;
 	int wait;
 	uint32_t size;
 } drm_via_cmdbuf_size_t;

 typedef enum {
 	VIA_IRQ_ABSOLUTE = 0x0,
 	VIA_IRQ_RELATIVE = 0x1,
 	VIA_IRQ_SIGNAL = 0x10000000,
 	VIA_IRQ_FORCE_SEQUENCE = 0x20000000
 } via_irq_seq_type_t;

 #define VIA_IRQ_FLAGS_MASK 0xF0000000

 enum drm_via_irqs {
 	drm_via_irq_hqv0 = 0,
 	drm_via_irq_hqv1,
 	drm_via_irq_dma0_dd,
 	drm_via_irq_dma0_td,
 	drm_via_irq_dma1_dd,
 	drm_via_irq_dma1_td,
 	drm_via_irq_num
 };

 struct drm_via_wait_irq_request {
 	unsigned irq;
 	via_irq_seq_type_t type;
 	uint32_t sequence;
 	uint32_t signal;
 };

 typedef union drm_via_irqwait {
 	struct drm_via_wait_irq_request request;
 	struct drm_wait_vblank_reply reply;
 } drm_via_irqwait_t;

 typedef struct drm_via_blitsync {
 	uint32_t sync_handle;
 	unsigned engine;
 } drm_via_blitsync_t;

 /* - * Below,"flags" is currently unused but will be used for possible future
  * extensions like kernel space bounce buffers for bad alignments and
  * blit engine busy-wait polling for better latency in the absence of
  * interrupts.
  */

 typedef struct drm_via_dmablit {
 	uint32_t num_lines;
 	uint32_t line_length;

 	uint32_t fb_addr;
 	uint32_t fb_stride;

 	unsigned char *mem_addr;
 	uint32_t mem_stride;

 	uint32_t flags;
 	int to_fb;

 	drm_via_blitsync_t sync;
 } drm_via_dmablit_t;

 #endif				/* _VIA_DRM_H_ */
	/*
	* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
	* Copyright 2001-2003 S3 Graphics, Inc. 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, sub license,
	* 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 NON-INFRINGEMENT. IN NO EVENT SHALL
	* VIA, S3 GRAPHICS, 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.
	*/
	#ifndef _VIA_DRM_H_
	#define _VIA_DRM_H_

	/* WARNING: These defines must be the same as what the Xserver uses.
	* if you change them, you must change the defines in the Xserver.
	*/

	#ifndef _VIA_DEFINES_
	#define _VIA_DEFINES_

	#ifndef __KERNEL__
	#include "via_drmclient.h"
	#endif

	#define VIA_NR_SAREA_CLIPRECTS 8
	#define VIA_NR_XVMC_PORTS 10
	#define VIA_NR_XVMC_LOCKS 5
	#define VIA_MAX_CACHELINE_SIZE 64
	#define XVMCLOCKPTR(saPriv,lockNo) \
	((volatile drm_hw_lock_t *)(((((unsigned long) (saPriv)->XvMCLockArea) + \
	(VIA_MAX_CACHELINE_SIZE - 1)) & \
	~(VIA_MAX_CACHELINE_SIZE - 1)) + \
	VIA_MAX_CACHELINE_SIZE*(lockNo)))

	/* Each region is a minimum of 64k, and there are at most 64 of them.
	*/
	#define VIA_NR_TEX_REGIONS 64
	#define VIA_LOG_MIN_TEX_REGION_SIZE 16
	#endif

	#define VIA_UPLOAD_TEX0IMAGE 0x1 /* handled clientside */
	#define VIA_UPLOAD_TEX1IMAGE 0x2 /* handled clientside */
	#define VIA_UPLOAD_CTX 0x4
	#define VIA_UPLOAD_BUFFERS 0x8
	#define VIA_UPLOAD_TEX0 0x10
	#define VIA_UPLOAD_TEX1 0x20
	#define VIA_UPLOAD_CLIPRECTS 0x40
	#define VIA_UPLOAD_ALL 0xff

	/* VIA specific ioctls */
	#define DRM_VIA_ALLOCMEM 0x00
	#define DRM_VIA_FREEMEM 0x01
	#define DRM_VIA_AGP_INIT 0x02
	#define DRM_VIA_FB_INIT 0x03
	#define DRM_VIA_MAP_INIT 0x04
	#define DRM_VIA_DEC_FUTEX 0x05
	#define NOT_USED
	#define DRM_VIA_DMA_INIT 0x07
	#define DRM_VIA_CMDBUFFER 0x08
	#define DRM_VIA_FLUSH 0x09
	#define DRM_VIA_PCICMD 0x0a
	#define DRM_VIA_CMDBUF_SIZE 0x0b
	#define NOT_USED
	#define DRM_VIA_WAIT_IRQ 0x0d
	#define DRM_VIA_DMA_BLIT 0x0e
	#define DRM_VIA_BLIT_SYNC 0x0f

	#define DRM_IOCTL_VIA_ALLOCMEM DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_ALLOCMEM, drm_via_mem_t)
	#define DRM_IOCTL_VIA_FREEMEM DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_FREEMEM, drm_via_mem_t)
	#define DRM_IOCTL_VIA_AGP_INIT DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_AGP_INIT, drm_via_agp_t)
	#define DRM_IOCTL_VIA_FB_INIT DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_FB_INIT, drm_via_fb_t)
	#define DRM_IOCTL_VIA_MAP_INIT DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_MAP_INIT, drm_via_init_t)
	#define DRM_IOCTL_VIA_DEC_FUTEX DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_DEC_FUTEX, drm_via_futex_t)
	#define DRM_IOCTL_VIA_DMA_INIT DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_DMA_INIT, drm_via_dma_init_t)
	#define DRM_IOCTL_VIA_CMDBUFFER DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_CMDBUFFER, drm_via_cmdbuffer_t)
	#define DRM_IOCTL_VIA_FLUSH DRM_IO( DRM_COMMAND_BASE + DRM_VIA_FLUSH)
	#define DRM_IOCTL_VIA_PCICMD DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_PCICMD, drm_via_cmdbuffer_t)
	#define DRM_IOCTL_VIA_CMDBUF_SIZE DRM_IOWR( DRM_COMMAND_BASE + DRM_VIA_CMDBUF_SIZE, \
	drm_via_cmdbuf_size_t)
	#define DRM_IOCTL_VIA_WAIT_IRQ DRM_IOWR( DRM_COMMAND_BASE + DRM_VIA_WAIT_IRQ, drm_via_irqwait_t)
	#define DRM_IOCTL_VIA_DMA_BLIT DRM_IOW(DRM_COMMAND_BASE + DRM_VIA_DMA_BLIT, drm_via_dmablit_t)
	#define DRM_IOCTL_VIA_BLIT_SYNC DRM_IOW(DRM_COMMAND_BASE + DRM_VIA_BLIT_SYNC, drm_via_blitsync_t)

	/* Indices into buf.Setup where various bits of state are mirrored per
	* context and per buffer. These can be fired at the card as a unit,
	* or in a piecewise fashion as required.
	*/

	#define VIA_TEX_SETUP_SIZE 8

	/* Flags for clear ioctl
	*/
	#define VIA_FRONT 0x1
	#define VIA_BACK 0x2
	#define VIA_DEPTH 0x4
	#define VIA_STENCIL 0x8
	#define VIA_MEM_VIDEO 0 /* matches drm constant */
	#define VIA_MEM_AGP 1 /* matches drm constant */
	#define VIA_MEM_SYSTEM 2
	#define VIA_MEM_MIXED 3
	#define VIA_MEM_UNKNOWN 4

	typedef struct {
	uint32_t offset;
	uint32_t size;
	} drm_via_agp_t;

	typedef struct {
	uint32_t offset;
	uint32_t size;
	} drm_via_fb_t;

	typedef struct {
	uint32_t context;
	uint32_t type;
	uint32_t size;
	unsigned long index;
	unsigned long offset;
	} drm_via_mem_t;

	typedef struct _drm_via_init {
	enum {
	VIA_INIT_MAP = 0x01,
	VIA_CLEANUP_MAP = 0x02
	} func;

	unsigned long sarea_priv_offset;
	unsigned long fb_offset;
	unsigned long mmio_offset;
	unsigned long agpAddr;
	} drm_via_init_t;

	typedef struct _drm_via_futex {
	enum {
	VIA_FUTEX_WAIT = 0x00,
	VIA_FUTEX_WAKE = 0X01
	} func;
	uint32_t ms;
	uint32_t lock;
	uint32_t val;
	} drm_via_futex_t;

	typedef struct _drm_via_dma_init {
	enum {
	VIA_INIT_DMA = 0x01,
	VIA_CLEANUP_DMA = 0x02,
	VIA_DMA_INITIALIZED = 0x03
	} func;

	unsigned long offset;
	unsigned long size;
	unsigned long reg_pause_addr;
	} drm_via_dma_init_t;

	typedef struct _drm_via_cmdbuffer {
	char __user *buf;
	unsigned long size;
	} drm_via_cmdbuffer_t;

	/* Warning: If you change the SAREA structure you must change the Xserver
	* structure as well */

	typedef struct _drm_via_tex_region {
	unsigned char next, prev; /* indices to form a circular LRU */
	unsigned char inUse; /* owned by a client, or free? */
	int age; /* tracked by clients to update local LRU's */
	} drm_via_tex_region_t;

	typedef struct _drm_via_sarea {
	unsigned int dirty;
	unsigned int nbox;
	drm_clip_rect_t boxes[VIA_NR_SAREA_CLIPRECTS];
	drm_via_tex_region_t texList[VIA_NR_TEX_REGIONS + 1];
	int texAge; /* last time texture was uploaded */
	int ctxOwner; /* last context to upload state */
	int vertexPrim;

	/*
	* Below is for XvMC.
	* We want the lock integers alone on, and aligned to, a cache line.
	* Therefore this somewhat strange construct.
	*/

	char XvMCLockArea[VIA_MAX_CACHELINE_SIZE * (VIA_NR_XVMC_LOCKS + 1)];

	unsigned int XvMCDisplaying[VIA_NR_XVMC_PORTS];
	unsigned int XvMCSubPicOn[VIA_NR_XVMC_PORTS];
	unsigned int XvMCCtxNoGrabbed; /* Last context to hold decoder */

	/* Used by the 3d driver only at this point, for pageflipping:
	*/
	unsigned int pfCurrentOffset;
	} drm_via_sarea_t;

	typedef struct _drm_via_cmdbuf_size {
	enum {
	VIA_CMDBUF_SPACE = 0x01,
	VIA_CMDBUF_LAG = 0x02
	} func;
	int wait;
	uint32_t size;
	} drm_via_cmdbuf_size_t;

	typedef enum {
	VIA_IRQ_ABSOLUTE = 0x0,
	VIA_IRQ_RELATIVE = 0x1,
	VIA_IRQ_SIGNAL = 0x10000000,
	VIA_IRQ_FORCE_SEQUENCE = 0x20000000
	} via_irq_seq_type_t;

	#define VIA_IRQ_FLAGS_MASK 0xF0000000

	enum drm_via_irqs {
	drm_via_irq_hqv0 = 0,
	drm_via_irq_hqv1,
	drm_via_irq_dma0_dd,
	drm_via_irq_dma0_td,
	drm_via_irq_dma1_dd,
	drm_via_irq_dma1_td,
	drm_via_irq_num
	};

	struct drm_via_wait_irq_request {
	unsigned irq;
	via_irq_seq_type_t type;
	uint32_t sequence;
	uint32_t signal;
	};

	typedef union drm_via_irqwait {
	struct drm_via_wait_irq_request request;
	struct drm_wait_vblank_reply reply;
	} drm_via_irqwait_t;

	typedef struct drm_via_blitsync {
	uint32_t sync_handle;
	unsigned engine;
	} drm_via_blitsync_t;

	/* - * Below,"flags" is currently unused but will be used for possible future
	* extensions like kernel space bounce buffers for bad alignments and
	* blit engine busy-wait polling for better latency in the absence of
	* interrupts.
	*/

	typedef struct drm_via_dmablit {
	uint32_t num_lines;
	uint32_t line_length;

	uint32_t fb_addr;
	uint32_t fb_stride;

	unsigned char *mem_addr;
	uint32_t mem_stride;

	uint32_t flags;
	int to_fb;

	drm_via_blitsync_t sync;
	} drm_via_dmablit_t;

	#endif /* _VIA_DRM_H_ */