drivers/char/drm/i830_drm.h

   1 #ifndef _I830_DRM_H_
   2 #define _I830_DRM_H_
   3
   4 /* WARNING: These defines must be the same as what the Xserver uses.
   5  * if you change them, you must change the defines in the Xserver.
   6  *
   7  * KW: Actually, you can't ever change them because doing so would
   8  * break backwards compatibility.
   9  */
  10
  11 #ifndef _I830_DEFINES_
  12 #define _I830_DEFINES_
  13
  14 #define I830_DMA_BUF_ORDER              12
  15 #define I830_DMA_BUF_SZ                 (1<<I830_DMA_BUF_ORDER)
  16 #define I830_DMA_BUF_NR                 256
  17 #define I830_NR_SAREA_CLIPRECTS         8
  18
  19 /* Each region is a minimum of 64k, and there are at most 64 of them.
  20  */
  21 #define I830_NR_TEX_REGIONS 64
  22 #define I830_LOG_MIN_TEX_REGION_SIZE 16
  23
  24 /* KW: These aren't correct but someone set them to two and then
  25  * released the module.  Now we can't change them as doing so would
  26  * break backwards compatibility.
  27  */
  28 #define I830_TEXTURE_COUNT      2
  29 #define I830_TEXBLEND_COUNT     I830_TEXTURE_COUNT
  30
  31 #define I830_TEXBLEND_SIZE      12      /* (4 args + op) * 2 + COLOR_FACTOR */
  32
  33 #define I830_UPLOAD_CTX                 0x1
  34 #define I830_UPLOAD_BUFFERS             0x2
  35 #define I830_UPLOAD_CLIPRECTS           0x4
  36 #define I830_UPLOAD_TEX0_IMAGE          0x100   /* handled clientside */
  37 #define I830_UPLOAD_TEX0_CUBE           0x200   /* handled clientside */
  38 #define I830_UPLOAD_TEX1_IMAGE          0x400   /* handled clientside */
  39 #define I830_UPLOAD_TEX1_CUBE           0x800   /* handled clientside */
  40 #define I830_UPLOAD_TEX2_IMAGE          0x1000  /* handled clientside */
  41 #define I830_UPLOAD_TEX2_CUBE           0x2000  /* handled clientside */
  42 #define I830_UPLOAD_TEX3_IMAGE          0x4000  /* handled clientside */
  43 #define I830_UPLOAD_TEX3_CUBE           0x8000  /* handled clientside */
  44 #define I830_UPLOAD_TEX_N_IMAGE(n)      (0x100 << (n * 2))
  45 #define I830_UPLOAD_TEX_N_CUBE(n)       (0x200 << (n * 2))
  46 #define I830_UPLOAD_TEXIMAGE_MASK       0xff00
  47 #define I830_UPLOAD_TEX0                        0x10000
  48 #define I830_UPLOAD_TEX1                        0x20000
  49 #define I830_UPLOAD_TEX2                        0x40000
  50 #define I830_UPLOAD_TEX3                        0x80000
  51 #define I830_UPLOAD_TEX_N(n)            (0x10000 << (n))
  52 #define I830_UPLOAD_TEX_MASK            0xf0000
  53 #define I830_UPLOAD_TEXBLEND0           0x100000
  54 #define I830_UPLOAD_TEXBLEND1           0x200000
  55 #define I830_UPLOAD_TEXBLEND2           0x400000
  56 #define I830_UPLOAD_TEXBLEND3           0x800000
  57 #define I830_UPLOAD_TEXBLEND_N(n)       (0x100000 << (n))
  58 #define I830_UPLOAD_TEXBLEND_MASK       0xf00000
  59 #define I830_UPLOAD_TEX_PALETTE_N(n)    (0x1000000 << (n))
  60 #define I830_UPLOAD_TEX_PALETTE_SHARED  0x4000000
  61 #define I830_UPLOAD_STIPPLE             0x8000000
  62
  63 /* Indices into buf.Setup where various bits of state are mirrored per
  64  * context and per buffer.  These can be fired at the card as a unit,
  65  * or in a piecewise fashion as required.
  66  */
  67
  68 /* Destbuffer state
  69  *    - backbuffer linear offset and pitch -- invarient in the current dri
  70  *    - zbuffer linear offset and pitch -- also invarient
  71  *    - drawing origin in back and depth buffers.
  72  *
  73  * Keep the depth/back buffer state here to accommodate private buffers
  74  * in the future.
  75  */
  76
  77 #define I830_DESTREG_CBUFADDR 0
  78 #define I830_DESTREG_DBUFADDR 1
  79 #define I830_DESTREG_DV0 2
  80 #define I830_DESTREG_DV1 3
  81 #define I830_DESTREG_SENABLE 4
  82 #define I830_DESTREG_SR0 5
  83 #define I830_DESTREG_SR1 6
  84 #define I830_DESTREG_SR2 7
  85 #define I830_DESTREG_DR0 8
  86 #define I830_DESTREG_DR1 9
  87 #define I830_DESTREG_DR2 10
  88 #define I830_DESTREG_DR3 11
  89 #define I830_DESTREG_DR4 12
  90 #define I830_DEST_SETUP_SIZE 13
  91
  92 /* Context state
  93  */
  94 #define I830_CTXREG_STATE1              0
  95 #define I830_CTXREG_STATE2              1
  96 #define I830_CTXREG_STATE3              2
  97 #define I830_CTXREG_STATE4              3
  98 #define I830_CTXREG_STATE5              4
  99 #define I830_CTXREG_IALPHAB             5
 100 #define I830_CTXREG_STENCILTST          6
 101 #define I830_CTXREG_ENABLES_1           7
 102 #define I830_CTXREG_ENABLES_2           8
 103 #define I830_CTXREG_AA                  9
 104 #define I830_CTXREG_FOGCOLOR            10
 105 #define I830_CTXREG_BLENDCOLR0          11
 106 #define I830_CTXREG_BLENDCOLR           12      /* Dword 1 of 2 dword command */
 107 #define I830_CTXREG_VF                  13
 108 #define I830_CTXREG_VF2                 14
 109 #define I830_CTXREG_MCSB0               15
 110 #define I830_CTXREG_MCSB1               16
 111 #define I830_CTX_SETUP_SIZE             17
 112
 113 /* 1.3: Stipple state
 114  */
 115 #define I830_STPREG_ST0 0
 116 #define I830_STPREG_ST1 1
 117 #define I830_STP_SETUP_SIZE 2
 118
 119 /* Texture state (per tex unit)
 120  */
 121
 122 #define I830_TEXREG_MI0 0       /* GFX_OP_MAP_INFO (6 dwords) */
 123 #define I830_TEXREG_MI1 1
 124 #define I830_TEXREG_MI2 2
 125 #define I830_TEXREG_MI3 3
 126 #define I830_TEXREG_MI4 4
 127 #define I830_TEXREG_MI5 5
 128 #define I830_TEXREG_MF  6       /* GFX_OP_MAP_FILTER */
 129 #define I830_TEXREG_MLC 7       /* GFX_OP_MAP_LOD_CTL */
 130 #define I830_TEXREG_MLL 8       /* GFX_OP_MAP_LOD_LIMITS */
 131 #define I830_TEXREG_MCS 9       /* GFX_OP_MAP_COORD_SETS */
 132 #define I830_TEX_SETUP_SIZE 10
 133
 134 #define I830_TEXREG_TM0LI      0        /* load immediate 2 texture map n */
 135 #define I830_TEXREG_TM0S0      1
 136 #define I830_TEXREG_TM0S1      2
 137 #define I830_TEXREG_TM0S2      3
 138 #define I830_TEXREG_TM0S3      4
 139 #define I830_TEXREG_TM0S4      5
 140 #define I830_TEXREG_NOP0       6        /* noop */
 141 #define I830_TEXREG_NOP1       7        /* noop */
 142 #define I830_TEXREG_NOP2       8        /* noop */
 143 #define __I830_TEXREG_MCS      9        /* GFX_OP_MAP_COORD_SETS -- shared */
 144 #define __I830_TEX_SETUP_SIZE   10
 145
 146 #define I830_FRONT   0x1
 147 #define I830_BACK    0x2
 148 #define I830_DEPTH   0x4
 149
 150 #endif                          /* _I830_DEFINES_ */
 151
 152 typedef struct _drm_i830_init {
 153         enum {
 154                 I830_INIT_DMA = 0x01,
 155                 I830_CLEANUP_DMA = 0x02
 156         } func;
 157         unsigned int mmio_offset;
 158         unsigned int buffers_offset;
 159         int sarea_priv_offset;
 160         unsigned int ring_start;
 161         unsigned int ring_end;
 162         unsigned int ring_size;
 163         unsigned int front_offset;
 164         unsigned int back_offset;
 165         unsigned int depth_offset;
 166         unsigned int w;
 167         unsigned int h;
 168         unsigned int pitch;
 169         unsigned int pitch_bits;
 170         unsigned int back_pitch;
 171         unsigned int depth_pitch;
 172         unsigned int cpp;
 173 } drm_i830_init_t;
 174
 175 /* Warning: If you change the SAREA structure you must change the Xserver
 176  * structure as well */
 177
 178 typedef struct _drm_i830_tex_region {
 179         unsigned char next, prev;       /* indices to form a circular LRU  */
 180         unsigned char in_use;   /* owned by a client, or free? */
 181         int age;                /* tracked by clients to update local LRU's */
 182 } drm_i830_tex_region_t;
 183
 184 typedef struct _drm_i830_sarea {
 185         unsigned int ContextState[I830_CTX_SETUP_SIZE];
 186         unsigned int BufferState[I830_DEST_SETUP_SIZE];
 187         unsigned int TexState[I830_TEXTURE_COUNT][I830_TEX_SETUP_SIZE];
 188         unsigned int TexBlendState[I830_TEXBLEND_COUNT][I830_TEXBLEND_SIZE];
 189         unsigned int TexBlendStateWordsUsed[I830_TEXBLEND_COUNT];
 190         unsigned int Palette[2][256];
 191         unsigned int dirty;
 192
 193         unsigned int nbox;
 194         struct drm_clip_rect boxes[I830_NR_SAREA_CLIPRECTS];
 195
 196         /* Maintain an LRU of contiguous regions of texture space.  If
 197          * you think you own a region of texture memory, and it has an
 198          * age different to the one you set, then you are mistaken and
 199          * it has been stolen by another client.  If global texAge
 200          * hasn't changed, there is no need to walk the list.
 201          *
 202          * These regions can be used as a proxy for the fine-grained
 203          * texture information of other clients - by maintaining them
 204          * in the same lru which is used to age their own textures,
 205          * clients have an approximate lru for the whole of global
 206          * texture space, and can make informed decisions as to which
 207          * areas to kick out.  There is no need to choose whether to
 208          * kick out your own texture or someone else's - simply eject
 209          * them all in LRU order.
 210          */
 211
 212         drm_i830_tex_region_t texList[I830_NR_TEX_REGIONS + 1];
 213         /* Last elt is sentinal */
 214         int texAge;             /* last time texture was uploaded */
 215         int last_enqueue;       /* last time a buffer was enqueued */
 216         int last_dispatch;      /* age of the most recently dispatched buffer */
 217         int last_quiescent;     /*  */
 218         int ctxOwner;           /* last context to upload state */
 219
 220         int vertex_prim;
 221
 222         int pf_enabled;         /* is pageflipping allowed? */
 223         int pf_active;
 224         int pf_current_page;    /* which buffer is being displayed? */
 225
 226         int perf_boxes;         /* performance boxes to be displayed */
 227
 228         /* Here's the state for texunits 2,3:
 229          */
 230         unsigned int TexState2[I830_TEX_SETUP_SIZE];
 231         unsigned int TexBlendState2[I830_TEXBLEND_SIZE];
 232         unsigned int TexBlendStateWordsUsed2;
 233
 234         unsigned int TexState3[I830_TEX_SETUP_SIZE];
 235         unsigned int TexBlendState3[I830_TEXBLEND_SIZE];
 236         unsigned int TexBlendStateWordsUsed3;
 237
 238         unsigned int StippleState[I830_STP_SETUP_SIZE];
 239 } drm_i830_sarea_t;
 240
 241 /* Flags for perf_boxes
 242  */
 243 #define I830_BOX_RING_EMPTY    0x1      /* populated by kernel */
 244 #define I830_BOX_FLIP          0x2      /* populated by kernel */
 245 #define I830_BOX_WAIT          0x4      /* populated by kernel & client */
 246 #define I830_BOX_TEXTURE_LOAD  0x8      /* populated by kernel */
 247 #define I830_BOX_LOST_CONTEXT  0x10     /* populated by client */
 248
 249 /* I830 specific ioctls
 250  * The device specific ioctl range is 0x40 to 0x79.
 251  */
 252 #define DRM_I830_INIT   0x00
 253 #define DRM_I830_VERTEX 0x01
 254 #define DRM_I830_CLEAR  0x02
 255 #define DRM_I830_FLUSH  0x03
 256 #define DRM_I830_GETAGE 0x04
 257 #define DRM_I830_GETBUF 0x05
 258 #define DRM_I830_SWAP   0x06
 259 #define DRM_I830_COPY   0x07
 260 #define DRM_I830_DOCOPY 0x08
 261 #define DRM_I830_FLIP   0x09
 262 #define DRM_I830_IRQ_EMIT       0x0a
 263 #define DRM_I830_IRQ_WAIT       0x0b
 264 #define DRM_I830_GETPARAM       0x0c
 265 #define DRM_I830_SETPARAM       0x0d
 266
 267 #define DRM_IOCTL_I830_INIT             DRM_IOW( DRM_COMMAND_BASE + DRM_IOCTL_I830_INIT, drm_i830_init_t)
 268 #define DRM_IOCTL_I830_VERTEX           DRM_IOW( DRM_COMMAND_BASE + DRM_IOCTL_I830_VERTEX, drm_i830_vertex_t)
 269 #define DRM_IOCTL_I830_CLEAR            DRM_IOW( DRM_COMMAND_BASE + DRM_IOCTL_I830_CLEAR, drm_i830_clear_t)
 270 #define DRM_IOCTL_I830_FLUSH            DRM_IO ( DRM_COMMAND_BASE + DRM_IOCTL_I830_FLUSH)
 271 #define DRM_IOCTL_I830_GETAGE           DRM_IO ( DRM_COMMAND_BASE + DRM_IOCTL_I830_GETAGE)
 272 #define DRM_IOCTL_I830_GETBUF           DRM_IOWR(DRM_COMMAND_BASE + DRM_IOCTL_I830_GETBUF, drm_i830_dma_t)
 273 #define DRM_IOCTL_I830_SWAP             DRM_IO ( DRM_COMMAND_BASE + DRM_IOCTL_I830_SWAP)
 274 #define DRM_IOCTL_I830_COPY             DRM_IOW( DRM_COMMAND_BASE + DRM_IOCTL_I830_COPY, drm_i830_copy_t)
 275 #define DRM_IOCTL_I830_DOCOPY           DRM_IO ( DRM_COMMAND_BASE + DRM_IOCTL_I830_DOCOPY)
 276 #define DRM_IOCTL_I830_FLIP             DRM_IO ( DRM_COMMAND_BASE + DRM_IOCTL_I830_FLIP)
 277 #define DRM_IOCTL_I830_IRQ_EMIT         DRM_IOWR(DRM_COMMAND_BASE + DRM_IOCTL_I830_IRQ_EMIT, drm_i830_irq_emit_t)
 278 #define DRM_IOCTL_I830_IRQ_WAIT         DRM_IOW( DRM_COMMAND_BASE + DRM_IOCTL_I830_IRQ_WAIT, drm_i830_irq_wait_t)
 279 #define DRM_IOCTL_I830_GETPARAM         DRM_IOWR(DRM_COMMAND_BASE + DRM_IOCTL_I830_GETPARAM, drm_i830_getparam_t)
 280 #define DRM_IOCTL_I830_SETPARAM         DRM_IOWR(DRM_COMMAND_BASE + DRM_IOCTL_I830_SETPARAM, drm_i830_setparam_t)
 281
 282 typedef struct _drm_i830_clear {
 283         int clear_color;
 284         int clear_depth;
 285         int flags;
 286         unsigned int clear_colormask;
 287         unsigned int clear_depthmask;
 288 } drm_i830_clear_t;
 289
 290 /* These may be placeholders if we have more cliprects than
 291  * I830_NR_SAREA_CLIPRECTS.  In that case, the client sets discard to
 292  * false, indicating that the buffer will be dispatched again with a
 293  * new set of cliprects.
 294  */
 295 typedef struct _drm_i830_vertex {
 296         int idx;                /* buffer index */
 297         int used;               /* nr bytes in use */
 298         int discard;            /* client is finished with the buffer? */
 299 } drm_i830_vertex_t;
 300
 301 typedef struct _drm_i830_copy_t {
 302         int idx;                /* buffer index */
 303         int used;               /* nr bytes in use */
 304         void __user *address;   /* Address to copy from */
 305 } drm_i830_copy_t;
 306
 307 typedef struct drm_i830_dma {
 308         void __user *virtual;
 309         int request_idx;
 310         int request_size;
 311         int granted;
 312 } drm_i830_dma_t;
 313
 314 /* 1.3: Userspace can request & wait on irq's:
 315  */
 316 typedef struct drm_i830_irq_emit {
 317         int __user *irq_seq;
 318 } drm_i830_irq_emit_t;
 319
 320 typedef struct drm_i830_irq_wait {
 321         int irq_seq;
 322 } drm_i830_irq_wait_t;
 323
 324 /* 1.3: New ioctl to query kernel params:
 325  */
 326 #define I830_PARAM_IRQ_ACTIVE            1
 327
 328 typedef struct drm_i830_getparam {
 329         int param;
 330         int __user *value;
 331 } drm_i830_getparam_t;
 332
 333 /* 1.3: New ioctl to set kernel params:
 334  */
 335 #define I830_SETPARAM_USE_MI_BATCHBUFFER_START            1
 336
 337 typedef struct drm_i830_setparam {
 338         int param;
 339         int value;
 340 } drm_i830_setparam_t;
 341
 342 #endif                          /* _I830_DRM_H_ */