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      1 /*
      2  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
      3  * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining a
      6  * copy of this software and associated documentation files (the "Software"),
      7  * to deal in the Software without restriction, including without limitation
      8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
      9  * and/or sell copies of the Software, and to permit persons to whom the
     10  * Software is furnished to do so, subject to the following conditions:
     11  *
     12  * The above copyright notice and this permission notice (including the
     13  * next paragraph) shall be included in all copies or substantial portions
     14  * of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     19  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     22  * DEALINGS IN THE SOFTWARE.
     23  */
     24 #ifndef _VIA_DRM_H_
     25 #define _VIA_DRM_H_
     26 
     27 #include "drm.h"
     28 
     29 #if defined(__cplusplus)
     30 extern "C" {
     31 #endif
     32 
     33 /* WARNING: These defines must be the same as what the Xserver uses.
     34  * if you change them, you must change the defines in the Xserver.
     35  */
     36 
     37 #ifndef _VIA_DEFINES_
     38 #define _VIA_DEFINES_
     39 
     40 
     41 #define VIA_NR_SAREA_CLIPRECTS		8
     42 #define VIA_NR_XVMC_PORTS               10
     43 #define VIA_NR_XVMC_LOCKS               5
     44 #define VIA_MAX_CACHELINE_SIZE          64
     45 #define XVMCLOCKPTR(saPriv,lockNo)					\
     46 	((volatile struct drm_hw_lock *)(((((unsigned long) (saPriv)->XvMCLockArea) + \
     47 				      (VIA_MAX_CACHELINE_SIZE - 1)) &	\
     48 				     ~(VIA_MAX_CACHELINE_SIZE - 1)) +	\
     49 				    VIA_MAX_CACHELINE_SIZE*(lockNo)))
     50 
     51 /* Each region is a minimum of 64k, and there are at most 64 of them.
     52  */
     53 #define VIA_NR_TEX_REGIONS 64
     54 #define VIA_LOG_MIN_TEX_REGION_SIZE 16
     55 #endif
     56 
     57 #define VIA_UPLOAD_TEX0IMAGE  0x1	/* handled clientside */
     58 #define VIA_UPLOAD_TEX1IMAGE  0x2	/* handled clientside */
     59 #define VIA_UPLOAD_CTX        0x4
     60 #define VIA_UPLOAD_BUFFERS    0x8
     61 #define VIA_UPLOAD_TEX0       0x10
     62 #define VIA_UPLOAD_TEX1       0x20
     63 #define VIA_UPLOAD_CLIPRECTS  0x40
     64 #define VIA_UPLOAD_ALL        0xff
     65 
     66 /* VIA specific ioctls */
     67 #define DRM_VIA_ALLOCMEM	0x00
     68 #define DRM_VIA_FREEMEM	        0x01
     69 #define DRM_VIA_AGP_INIT	0x02
     70 #define DRM_VIA_FB_INIT	        0x03
     71 #define DRM_VIA_MAP_INIT	0x04
     72 #define DRM_VIA_DEC_FUTEX       0x05
     73 #define NOT_USED
     74 #define DRM_VIA_DMA_INIT	0x07
     75 #define DRM_VIA_CMDBUFFER	0x08
     76 #define DRM_VIA_FLUSH	        0x09
     77 #define DRM_VIA_PCICMD	        0x0a
     78 #define DRM_VIA_CMDBUF_SIZE	0x0b
     79 #define NOT_USED
     80 #define DRM_VIA_WAIT_IRQ        0x0d
     81 #define DRM_VIA_DMA_BLIT        0x0e
     82 #define DRM_VIA_BLIT_SYNC       0x0f
     83 
     84 #define DRM_IOCTL_VIA_ALLOCMEM	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_ALLOCMEM, drm_via_mem_t)
     85 #define DRM_IOCTL_VIA_FREEMEM	  DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_FREEMEM, drm_via_mem_t)
     86 #define DRM_IOCTL_VIA_AGP_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_AGP_INIT, drm_via_agp_t)
     87 #define DRM_IOCTL_VIA_FB_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_FB_INIT, drm_via_fb_t)
     88 #define DRM_IOCTL_VIA_MAP_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_MAP_INIT, drm_via_init_t)
     89 #define DRM_IOCTL_VIA_DEC_FUTEX   DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_DEC_FUTEX, drm_via_futex_t)
     90 #define DRM_IOCTL_VIA_DMA_INIT	  DRM_IOWR(DRM_COMMAND_BASE + DRM_VIA_DMA_INIT, drm_via_dma_init_t)
     91 #define DRM_IOCTL_VIA_CMDBUFFER	  DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_CMDBUFFER, drm_via_cmdbuffer_t)
     92 #define DRM_IOCTL_VIA_FLUSH	  DRM_IO(  DRM_COMMAND_BASE + DRM_VIA_FLUSH)
     93 #define DRM_IOCTL_VIA_PCICMD	  DRM_IOW( DRM_COMMAND_BASE + DRM_VIA_PCICMD, drm_via_cmdbuffer_t)
     94 #define DRM_IOCTL_VIA_CMDBUF_SIZE DRM_IOWR( DRM_COMMAND_BASE + DRM_VIA_CMDBUF_SIZE, \
     95 					    drm_via_cmdbuf_size_t)
     96 #define DRM_IOCTL_VIA_WAIT_IRQ    DRM_IOWR( DRM_COMMAND_BASE + DRM_VIA_WAIT_IRQ, drm_via_irqwait_t)
     97 #define DRM_IOCTL_VIA_DMA_BLIT    DRM_IOW(DRM_COMMAND_BASE + DRM_VIA_DMA_BLIT, drm_via_dmablit_t)
     98 #define DRM_IOCTL_VIA_BLIT_SYNC   DRM_IOW(DRM_COMMAND_BASE + DRM_VIA_BLIT_SYNC, drm_via_blitsync_t)
     99 
    100 /* Indices into buf.Setup where various bits of state are mirrored per
    101  * context and per buffer.  These can be fired at the card as a unit,
    102  * or in a piecewise fashion as required.
    103  */
    104 
    105 #define VIA_TEX_SETUP_SIZE 8
    106 
    107 /* Flags for clear ioctl
    108  */
    109 #define VIA_FRONT   0x1
    110 #define VIA_BACK    0x2
    111 #define VIA_DEPTH   0x4
    112 #define VIA_STENCIL 0x8
    113 #define VIA_MEM_VIDEO   0	/* matches drm constant */
    114 #define VIA_MEM_AGP     1	/* matches drm constant */
    115 #define VIA_MEM_SYSTEM  2
    116 #define VIA_MEM_MIXED   3
    117 #define VIA_MEM_UNKNOWN 4
    118 
    119 typedef struct {
    120 	__u32 offset;
    121 	__u32 size;
    122 } drm_via_agp_t;
    123 
    124 typedef struct {
    125 	__u32 offset;
    126 	__u32 size;
    127 } drm_via_fb_t;
    128 
    129 typedef struct {
    130 	__u32 context;
    131 	__u32 type;
    132 	__u32 size;
    133 	unsigned long index;
    134 	unsigned long offset;
    135 } drm_via_mem_t;
    136 
    137 typedef struct _drm_via_init {
    138 	enum {
    139 		VIA_INIT_MAP = 0x01,
    140 		VIA_CLEANUP_MAP = 0x02
    141 	} func;
    142 
    143 	unsigned long sarea_priv_offset;
    144 	unsigned long fb_offset;
    145 	unsigned long mmio_offset;
    146 	unsigned long agpAddr;
    147 } drm_via_init_t;
    148 
    149 typedef struct _drm_via_futex {
    150 	enum {
    151 		VIA_FUTEX_WAIT = 0x00,
    152 		VIA_FUTEX_WAKE = 0X01
    153 	} func;
    154 	__u32 ms;
    155 	__u32 lock;
    156 	__u32 val;
    157 } drm_via_futex_t;
    158 
    159 typedef struct _drm_via_dma_init {
    160 	enum {
    161 		VIA_INIT_DMA = 0x01,
    162 		VIA_CLEANUP_DMA = 0x02,
    163 		VIA_DMA_INITIALIZED = 0x03
    164 	} func;
    165 
    166 	unsigned long offset;
    167 	unsigned long size;
    168 	unsigned long reg_pause_addr;
    169 } drm_via_dma_init_t;
    170 
    171 typedef struct _drm_via_cmdbuffer {
    172 	char __user *buf;
    173 	unsigned long size;
    174 } drm_via_cmdbuffer_t;
    175 
    176 /* Warning: If you change the SAREA structure you must change the Xserver
    177  * structure as well */
    178 
    179 typedef struct _drm_via_tex_region {
    180 	unsigned char next, prev;	/* indices to form a circular LRU  */
    181 	unsigned char inUse;	/* owned by a client, or free? */
    182 	int age;		/* tracked by clients to update local LRU's */
    183 } drm_via_tex_region_t;
    184 
    185 typedef struct _drm_via_sarea {
    186 	unsigned int dirty;
    187 	unsigned int nbox;
    188 	struct drm_clip_rect boxes[VIA_NR_SAREA_CLIPRECTS];
    189 	drm_via_tex_region_t texList[VIA_NR_TEX_REGIONS + 1];
    190 	int texAge;		/* last time texture was uploaded */
    191 	int ctxOwner;		/* last context to upload state */
    192 	int vertexPrim;
    193 
    194 	/*
    195 	 * Below is for XvMC.
    196 	 * We want the lock integers alone on, and aligned to, a cache line.
    197 	 * Therefore this somewhat strange construct.
    198 	 */
    199 
    200 	char XvMCLockArea[VIA_MAX_CACHELINE_SIZE * (VIA_NR_XVMC_LOCKS + 1)];
    201 
    202 	unsigned int XvMCDisplaying[VIA_NR_XVMC_PORTS];
    203 	unsigned int XvMCSubPicOn[VIA_NR_XVMC_PORTS];
    204 	unsigned int XvMCCtxNoGrabbed;	/* Last context to hold decoder */
    205 
    206 	/* Used by the 3d driver only at this point, for pageflipping:
    207 	 */
    208 	unsigned int pfCurrentOffset;
    209 } drm_via_sarea_t;
    210 
    211 typedef struct _drm_via_cmdbuf_size {
    212 	enum {
    213 		VIA_CMDBUF_SPACE = 0x01,
    214 		VIA_CMDBUF_LAG = 0x02
    215 	} func;
    216 	int wait;
    217 	__u32 size;
    218 } drm_via_cmdbuf_size_t;
    219 
    220 typedef enum {
    221 	VIA_IRQ_ABSOLUTE = 0x0,
    222 	VIA_IRQ_RELATIVE = 0x1,
    223 	VIA_IRQ_SIGNAL = 0x10000000,
    224 	VIA_IRQ_FORCE_SEQUENCE = 0x20000000
    225 } via_irq_seq_type_t;
    226 
    227 #define VIA_IRQ_FLAGS_MASK 0xF0000000
    228 
    229 enum drm_via_irqs {
    230 	drm_via_irq_hqv0 = 0,
    231 	drm_via_irq_hqv1,
    232 	drm_via_irq_dma0_dd,
    233 	drm_via_irq_dma0_td,
    234 	drm_via_irq_dma1_dd,
    235 	drm_via_irq_dma1_td,
    236 	drm_via_irq_num
    237 };
    238 
    239 struct drm_via_wait_irq_request {
    240 	unsigned irq;
    241 	via_irq_seq_type_t type;
    242 	__u32 sequence;
    243 	__u32 signal;
    244 };
    245 
    246 typedef union drm_via_irqwait {
    247 	struct drm_via_wait_irq_request request;
    248 	struct drm_wait_vblank_reply reply;
    249 } drm_via_irqwait_t;
    250 
    251 typedef struct drm_via_blitsync {
    252 	__u32 sync_handle;
    253 	unsigned engine;
    254 } drm_via_blitsync_t;
    255 
    256 /* - * Below,"flags" is currently unused but will be used for possible future
    257  * extensions like kernel space bounce buffers for bad alignments and
    258  * blit engine busy-wait polling for better latency in the absence of
    259  * interrupts.
    260  */
    261 
    262 typedef struct drm_via_dmablit {
    263 	__u32 num_lines;
    264 	__u32 line_length;
    265 
    266 	__u32 fb_addr;
    267 	__u32 fb_stride;
    268 
    269 	unsigned char *mem_addr;
    270 	__u32 mem_stride;
    271 
    272 	__u32 flags;
    273 	int to_fb;
    274 
    275 	drm_via_blitsync_t sync;
    276 } drm_via_dmablit_t;
    277 
    278 #if defined(__cplusplus)
    279 }
    280 #endif
    281 
    282 #endif				/* _VIA_DRM_H_ */
    283