include/uapi/drm/i810_drm.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _I810_DRM_H_
   3 #define _I810_DRM_H_
   4
   5 #include "drm.h"
   6
   7 #if defined(__cplusplus)
   8 extern "C" {
   9 #endif
  10
  11 /* WARNING: These defines must be the same as what the Xserver uses.
  12  * if you change them, you must change the defines in the Xserver.
  13  */
  14
  15 #ifndef _I810_DEFINES_
  16 #define _I810_DEFINES_
  17
  18 #define I810_DMA_BUF_ORDER              12
  19 #define I810_DMA_BUF_SZ                 (1<<I810_DMA_BUF_ORDER)
  20 #define I810_DMA_BUF_NR                 256
  21 #define I810_NR_SAREA_CLIPRECTS         8
  22
  23 /* Each region is a minimum of 64k, and there are at most 64 of them.
  24  */
  25 #define I810_NR_TEX_REGIONS 64
  26 #define I810_LOG_MIN_TEX_REGION_SIZE 16
  27 #endif
  28
  29 #define I810_UPLOAD_TEX0IMAGE  0x1      /* handled clientside */
  30 #define I810_UPLOAD_TEX1IMAGE  0x2      /* handled clientside */
  31 #define I810_UPLOAD_CTX        0x4
  32 #define I810_UPLOAD_BUFFERS    0x8
  33 #define I810_UPLOAD_TEX0       0x10
  34 #define I810_UPLOAD_TEX1       0x20
  35 #define I810_UPLOAD_CLIPRECTS  0x40
  36
  37 /* Indices into buf.Setup where various bits of state are mirrored per
  38  * context and per buffer.  These can be fired at the card as a unit,
  39  * or in a piecewise fashion as required.
  40  */
  41
  42 /* Destbuffer state
  43  *    - backbuffer linear offset and pitch -- invarient in the current dri
  44  *    - zbuffer linear offset and pitch -- also invarient
  45  *    - drawing origin in back and depth buffers.
  46  *
  47  * Keep the depth/back buffer state here to accommodate private buffers
  48  * in the future.
  49  */
  50 #define I810_DESTREG_DI0  0     /* CMD_OP_DESTBUFFER_INFO (2 dwords) */
  51 #define I810_DESTREG_DI1  1
  52 #define I810_DESTREG_DV0  2     /* GFX_OP_DESTBUFFER_VARS (2 dwords) */
  53 #define I810_DESTREG_DV1  3
  54 #define I810_DESTREG_DR0  4     /* GFX_OP_DRAWRECT_INFO (4 dwords) */
  55 #define I810_DESTREG_DR1  5
  56 #define I810_DESTREG_DR2  6
  57 #define I810_DESTREG_DR3  7
  58 #define I810_DESTREG_DR4  8
  59 #define I810_DEST_SETUP_SIZE 10
  60
  61 /* Context state
  62  */
  63 #define I810_CTXREG_CF0   0     /* GFX_OP_COLOR_FACTOR */
  64 #define I810_CTXREG_CF1   1
  65 #define I810_CTXREG_ST0   2     /* GFX_OP_STIPPLE */
  66 #define I810_CTXREG_ST1   3
  67 #define I810_CTXREG_VF    4     /* GFX_OP_VERTEX_FMT */
  68 #define I810_CTXREG_MT    5     /* GFX_OP_MAP_TEXELS */
  69 #define I810_CTXREG_MC0   6     /* GFX_OP_MAP_COLOR_STAGES - stage 0 */
  70 #define I810_CTXREG_MC1   7     /* GFX_OP_MAP_COLOR_STAGES - stage 1 */
  71 #define I810_CTXREG_MC2   8     /* GFX_OP_MAP_COLOR_STAGES - stage 2 */
  72 #define I810_CTXREG_MA0   9     /* GFX_OP_MAP_ALPHA_STAGES - stage 0 */
  73 #define I810_CTXREG_MA1   10    /* GFX_OP_MAP_ALPHA_STAGES - stage 1 */
  74 #define I810_CTXREG_MA2   11    /* GFX_OP_MAP_ALPHA_STAGES - stage 2 */
  75 #define I810_CTXREG_SDM   12    /* GFX_OP_SRC_DEST_MONO */
  76 #define I810_CTXREG_FOG   13    /* GFX_OP_FOG_COLOR */
  77 #define I810_CTXREG_B1    14    /* GFX_OP_BOOL_1 */
  78 #define I810_CTXREG_B2    15    /* GFX_OP_BOOL_2 */
  79 #define I810_CTXREG_LCS   16    /* GFX_OP_LINEWIDTH_CULL_SHADE_MODE */
  80 #define I810_CTXREG_PV    17    /* GFX_OP_PV_RULE -- Invarient! */
  81 #define I810_CTXREG_ZA    18    /* GFX_OP_ZBIAS_ALPHAFUNC */
  82 #define I810_CTXREG_AA    19    /* GFX_OP_ANTIALIAS */
  83 #define I810_CTX_SETUP_SIZE 20
  84
  85 /* Texture state (per tex unit)
  86  */
  87 #define I810_TEXREG_MI0  0      /* GFX_OP_MAP_INFO (4 dwords) */
  88 #define I810_TEXREG_MI1  1
  89 #define I810_TEXREG_MI2  2
  90 #define I810_TEXREG_MI3  3
  91 #define I810_TEXREG_MF   4      /* GFX_OP_MAP_FILTER */
  92 #define I810_TEXREG_MLC  5      /* GFX_OP_MAP_LOD_CTL */
  93 #define I810_TEXREG_MLL  6      /* GFX_OP_MAP_LOD_LIMITS */
  94 #define I810_TEXREG_MCS  7      /* GFX_OP_MAP_COORD_SETS ??? */
  95 #define I810_TEX_SETUP_SIZE 8
  96
  97 /* Flags for clear ioctl
  98  */
  99 #define I810_FRONT   0x1
 100 #define I810_BACK    0x2
 101 #define I810_DEPTH   0x4
 102
 103 typedef enum _drm_i810_init_func {
 104         I810_INIT_DMA = 0x01,
 105         I810_CLEANUP_DMA = 0x02,
 106         I810_INIT_DMA_1_4 = 0x03
 107 } drm_i810_init_func_t;
 108
 109 /* This is the init structure after v1.2 */
 110 typedef struct _drm_i810_init {
 111         drm_i810_init_func_t func;
 112         unsigned int mmio_offset;
 113         unsigned int buffers_offset;
 114         int sarea_priv_offset;
 115         unsigned int ring_start;
 116         unsigned int ring_end;
 117         unsigned int ring_size;
 118         unsigned int front_offset;
 119         unsigned int back_offset;
 120         unsigned int depth_offset;
 121         unsigned int overlay_offset;
 122         unsigned int overlay_physical;
 123         unsigned int w;
 124         unsigned int h;
 125         unsigned int pitch;
 126         unsigned int pitch_bits;
 127 } drm_i810_init_t;
 128
 129 /* This is the init structure prior to v1.2 */
 130 typedef struct _drm_i810_pre12_init {
 131         drm_i810_init_func_t func;
 132         unsigned int mmio_offset;
 133         unsigned int buffers_offset;
 134         int sarea_priv_offset;
 135         unsigned int ring_start;
 136         unsigned int ring_end;
 137         unsigned int ring_size;
 138         unsigned int front_offset;
 139         unsigned int back_offset;
 140         unsigned int depth_offset;
 141         unsigned int w;
 142         unsigned int h;
 143         unsigned int pitch;
 144         unsigned int pitch_bits;
 145 } drm_i810_pre12_init_t;
 146
 147 /* Warning: If you change the SAREA structure you must change the Xserver
 148  * structure as well */
 149
 150 typedef struct _drm_i810_tex_region {
 151         unsigned char next, prev;       /* indices to form a circular LRU  */
 152         unsigned char in_use;   /* owned by a client, or free? */
 153         int age;                /* tracked by clients to update local LRU's */
 154 } drm_i810_tex_region_t;
 155
 156 typedef struct _drm_i810_sarea {
 157         unsigned int ContextState[I810_CTX_SETUP_SIZE];
 158         unsigned int BufferState[I810_DEST_SETUP_SIZE];
 159         unsigned int TexState[2][I810_TEX_SETUP_SIZE];
 160         unsigned int dirty;
 161
 162         unsigned int nbox;
 163         struct drm_clip_rect boxes[I810_NR_SAREA_CLIPRECTS];
 164
 165         /* Maintain an LRU of contiguous regions of texture space.  If
 166          * you think you own a region of texture memory, and it has an
 167          * age different to the one you set, then you are mistaken and
 168          * it has been stolen by another client.  If global texAge
 169          * hasn't changed, there is no need to walk the list.
 170          *
 171          * These regions can be used as a proxy for the fine-grained
 172          * texture information of other clients - by maintaining them
 173          * in the same lru which is used to age their own textures,
 174          * clients have an approximate lru for the whole of global
 175          * texture space, and can make informed decisions as to which
 176          * areas to kick out.  There is no need to choose whether to
 177          * kick out your own texture or someone else's - simply eject
 178          * them all in LRU order.
 179          */
 180
 181         drm_i810_tex_region_t texList[I810_NR_TEX_REGIONS + 1];
 182         /* Last elt is sentinal */
 183         int texAge;             /* last time texture was uploaded */
 184         int last_enqueue;       /* last time a buffer was enqueued */
 185         int last_dispatch;      /* age of the most recently dispatched buffer */
 186         int last_quiescent;     /*  */
 187         int ctxOwner;           /* last context to upload state */
 188
 189         int vertex_prim;
 190
 191         int pf_enabled;         /* is pageflipping allowed? */
 192         int pf_active;
 193         int pf_current_page;    /* which buffer is being displayed? */
 194 } drm_i810_sarea_t;
 195
 196 /* WARNING: If you change any of these defines, make sure to change the
 197  * defines in the Xserver file (xf86drmMga.h)
 198  */
 199
 200 /* i810 specific ioctls
 201  * The device specific ioctl range is 0x40 to 0x79.
 202  */
 203 #define DRM_I810_INIT           0x00
 204 #define DRM_I810_VERTEX         0x01
 205 #define DRM_I810_CLEAR          0x02
 206 #define DRM_I810_FLUSH          0x03
 207 #define DRM_I810_GETAGE         0x04
 208 #define DRM_I810_GETBUF         0x05
 209 #define DRM_I810_SWAP           0x06
 210 #define DRM_I810_COPY           0x07
 211 #define DRM_I810_DOCOPY         0x08
 212 #define DRM_I810_OV0INFO        0x09
 213 #define DRM_I810_FSTATUS        0x0a
 214 #define DRM_I810_OV0FLIP        0x0b
 215 #define DRM_I810_MC             0x0c
 216 #define DRM_I810_RSTATUS        0x0d
 217 #define DRM_I810_FLIP           0x0e
 218
 219 #define DRM_IOCTL_I810_INIT             DRM_IOW( DRM_COMMAND_BASE + DRM_I810_INIT, drm_i810_init_t)
 220 #define DRM_IOCTL_I810_VERTEX           DRM_IOW( DRM_COMMAND_BASE + DRM_I810_VERTEX, drm_i810_vertex_t)
 221 #define DRM_IOCTL_I810_CLEAR            DRM_IOW( DRM_COMMAND_BASE + DRM_I810_CLEAR, drm_i810_clear_t)
 222 #define DRM_IOCTL_I810_FLUSH            DRM_IO(  DRM_COMMAND_BASE + DRM_I810_FLUSH)
 223 #define DRM_IOCTL_I810_GETAGE           DRM_IO(  DRM_COMMAND_BASE + DRM_I810_GETAGE)
 224 #define DRM_IOCTL_I810_GETBUF           DRM_IOWR(DRM_COMMAND_BASE + DRM_I810_GETBUF, drm_i810_dma_t)
 225 #define DRM_IOCTL_I810_SWAP             DRM_IO(  DRM_COMMAND_BASE + DRM_I810_SWAP)
 226 #define DRM_IOCTL_I810_COPY             DRM_IOW( DRM_COMMAND_BASE + DRM_I810_COPY, drm_i810_copy_t)
 227 #define DRM_IOCTL_I810_DOCOPY           DRM_IO(  DRM_COMMAND_BASE + DRM_I810_DOCOPY)
 228 #define DRM_IOCTL_I810_OV0INFO          DRM_IOR( DRM_COMMAND_BASE + DRM_I810_OV0INFO, drm_i810_overlay_t)
 229 #define DRM_IOCTL_I810_FSTATUS          DRM_IO ( DRM_COMMAND_BASE + DRM_I810_FSTATUS)
 230 #define DRM_IOCTL_I810_OV0FLIP          DRM_IO ( DRM_COMMAND_BASE + DRM_I810_OV0FLIP)
 231 #define DRM_IOCTL_I810_MC               DRM_IOW( DRM_COMMAND_BASE + DRM_I810_MC, drm_i810_mc_t)
 232 #define DRM_IOCTL_I810_RSTATUS          DRM_IO ( DRM_COMMAND_BASE + DRM_I810_RSTATUS)
 233 #define DRM_IOCTL_I810_FLIP             DRM_IO ( DRM_COMMAND_BASE + DRM_I810_FLIP)
 234
 235 typedef struct _drm_i810_clear {
 236         int clear_color;
 237         int clear_depth;
 238         int flags;
 239 } drm_i810_clear_t;
 240
 241 /* These may be placeholders if we have more cliprects than
 242  * I810_NR_SAREA_CLIPRECTS.  In that case, the client sets discard to
 243  * false, indicating that the buffer will be dispatched again with a
 244  * new set of cliprects.
 245  */
 246 typedef struct _drm_i810_vertex {
 247         int idx;                /* buffer index */
 248         int used;               /* nr bytes in use */
 249         int discard;            /* client is finished with the buffer? */
 250 } drm_i810_vertex_t;
 251
 252 typedef struct _drm_i810_copy_t {
 253         int idx;                /* buffer index */
 254         int used;               /* nr bytes in use */
 255         void *address;          /* Address to copy from */
 256 } drm_i810_copy_t;
 257
 258 #define PR_TRIANGLES         (0x0<<18)
 259 #define PR_TRISTRIP_0        (0x1<<18)
 260 #define PR_TRISTRIP_1        (0x2<<18)
 261 #define PR_TRIFAN            (0x3<<18)
 262 #define PR_POLYGON           (0x4<<18)
 263 #define PR_LINES             (0x5<<18)
 264 #define PR_LINESTRIP         (0x6<<18)
 265 #define PR_RECTS             (0x7<<18)
 266 #define PR_MASK              (0x7<<18)
 267
 268 typedef struct drm_i810_dma {
 269         void *virtual;
 270         int request_idx;
 271         int request_size;
 272         int granted;
 273 } drm_i810_dma_t;
 274
 275 typedef struct _drm_i810_overlay_t {
 276         unsigned int offset;    /* Address of the Overlay Regs */
 277         unsigned int physical;
 278 } drm_i810_overlay_t;
 279
 280 typedef struct _drm_i810_mc {
 281         int idx;                /* buffer index */
 282         int used;               /* nr bytes in use */
 283         int num_blocks;         /* number of GFXBlocks */
 284         int *length;            /* List of lengths for GFXBlocks (FUTURE) */
 285         unsigned int last_render;       /* Last Render Request */
 286 } drm_i810_mc_t;
 287
 288 #if defined(__cplusplus)
 289 }
 290 #endif
 291
 292 #endif                          /* _I810_DRM_H_ */