text: /*
   * 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_
  
  #include "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_
  
  #include "via_drmclient.h"
  
  #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__ struct drm_hw_lock *)(((((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 {
  	__u32 offset;
  	__u32 size;
  } drm_via_agp_t;
  
  typedef struct {
  	__u32 offset;
  	__u32 size;
  } drm_via_fb_t;
  
  typedef struct {
  	__u32 context;
  	__u32 type;
  	__u32 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;
  	__u32 ms;
  	__u32 lock;
  	__u32 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 *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;
  	struct drm_clip_rect 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;
  	__u32 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;
  	__u32 sequence;
  	__u32 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 {
  	__u32 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 {
  	__u32 num_lines;
  	__u32 line_length;
  
  	__u32 fb_addr;
  	__u32 fb_stride;
  
  	unsigned char *mem_addr;
  	__u32 mem_stride;
  
  	__u32 flags;
  	int to_fb;
  
  	drm_via_blitsync_t sync;
  } drm_via_dmablit_t;
  
  struct via_file_private {
  	struct list_head obj_list;
  };
  
  #endif				/* _VIA_DRM_H_ */
  