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#ifndef _I810_DRM_H_

#define _I810_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 _I810_DEFINES_

#define _I810_DEFINES_

#define I810_DMA_BUF_ORDER              12

#define I810_DMA_BUF_SZ                 (1<<I810_DMA_BUF_ORDER)

#define I810_DMA_BUF_NR                 256

#define I810_NR_SAREA_CLIPRECTS         8

/* Each region is a minimum of 64k, and there are at most 64 of them.

 */

#define I810_NR_TEX_REGIONS 64

#define I810_LOG_MIN_TEX_REGION_SIZE 16

#endif

#define I810_UPLOAD_TEX0IMAGE  0x1 /* handled clientside */

#define I810_UPLOAD_TEX1IMAGE  0x2 /* handled clientside */

#define I810_UPLOAD_CTX        0x4

#define I810_UPLOAD_BUFFERS    0x8

#define I810_UPLOAD_TEX0       0x10

#define I810_UPLOAD_TEX1       0x20

#define I810_UPLOAD_CLIPRECTS  0x40

/* 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.

 */

/* Destbuffer state

 *    - backbuffer linear offset and pitch -- invarient in the current dri

 *    - zbuffer linear offset and pitch -- also invarient

 *    - drawing origin in back and depth buffers.

 *

 * Keep the depth/back buffer state here to acommodate private buffers

 * in the future.

 */

#define I810_DESTREG_DI0  0     /* CMD_OP_DESTBUFFER_INFO (2 dwords) */

#define I810_DESTREG_DI1  1

#define I810_DESTREG_DV0  2     /* GFX_OP_DESTBUFFER_VARS (2 dwords) */

#define I810_DESTREG_DV1  3

#define I810_DESTREG_DR0  4     /* GFX_OP_DRAWRECT_INFO (4 dwords) */

#define I810_DESTREG_DR1  5

#define I810_DESTREG_DR2  6

#define I810_DESTREG_DR3  7

#define I810_DESTREG_DR4  8

#define I810_DEST_SETUP_SIZE 10

/* Context state

 */

#define I810_CTXREG_CF0   0     /* GFX_OP_COLOR_FACTOR */

#define I810_CTXREG_CF1   1     

#define I810_CTXREG_ST0   2     /* GFX_OP_STIPPLE */

#define I810_CTXREG_ST1   3

#define I810_CTXREG_VF    4     /* GFX_OP_VERTEX_FMT */

#define I810_CTXREG_MT    5     /* GFX_OP_MAP_TEXELS */

#define I810_CTXREG_MC0   6     /* GFX_OP_MAP_COLOR_STAGES - stage 0 */

#define I810_CTXREG_MC1   7     /* GFX_OP_MAP_COLOR_STAGES - stage 1 */

#define I810_CTXREG_MC2   8     /* GFX_OP_MAP_COLOR_STAGES - stage 2 */

#define I810_CTXREG_MA0   9     /* GFX_OP_MAP_ALPHA_STAGES - stage 0 */

#define I810_CTXREG_MA1   10    /* GFX_OP_MAP_ALPHA_STAGES - stage 1 */

#define I810_CTXREG_MA2   11    /* GFX_OP_MAP_ALPHA_STAGES - stage 2 */

#define I810_CTXREG_SDM   12    /* GFX_OP_SRC_DEST_MONO */

#define I810_CTXREG_FOG   13    /* GFX_OP_FOG_COLOR */

#define I810_CTXREG_B1    14    /* GFX_OP_BOOL_1 */

#define I810_CTXREG_B2    15    /* GFX_OP_BOOL_2 */

#define I810_CTXREG_LCS   16    /* GFX_OP_LINEWIDTH_CULL_SHADE_MODE */

#define I810_CTXREG_PV    17    /* GFX_OP_PV_RULE -- Invarient! */

#define I810_CTXREG_ZA    18    /* GFX_OP_ZBIAS_ALPHAFUNC */

#define I810_CTXREG_AA    19    /* GFX_OP_ANTIALIAS */

#define I810_CTX_SETUP_SIZE 20 

/* Texture state (per tex unit)

 */

#define I810_TEXREG_MI0  0      /* GFX_OP_MAP_INFO (4 dwords) */

#define I810_TEXREG_MI1  1      

#define I810_TEXREG_MI2  2      

#define I810_TEXREG_MI3  3      

#define I810_TEXREG_MF   4      /* GFX_OP_MAP_FILTER */

#define I810_TEXREG_MLC  5      /* GFX_OP_MAP_LOD_CTL */

#define I810_TEXREG_MLL  6      /* GFX_OP_MAP_LOD_LIMITS */

#define I810_TEXREG_MCS  7      /* GFX_OP_MAP_COORD_SETS ??? */

#define I810_TEX_SETUP_SIZE 8

#define I810_FRONT   0x1

#define I810_BACK    0x2

#define I810_DEPTH   0x4

typedef struct _drm_i810_init {

        enum {

                I810_INIT_DMA = 0x01,

                I810_CLEANUP_DMA = 0x02

        } func;

        int ring_map_idx;

        int buffer_map_idx;

        int sarea_priv_offset;

        unsigned int ring_start;

        unsigned int ring_end;

        unsigned int ring_size;

        unsigned int front_offset;

        unsigned int back_offset;

        unsigned int depth_offset;

        unsigned int w;

        unsigned int h;

        unsigned int pitch;

        unsigned int pitch_bits;

} drm_i810_init_t;

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

 * structure as well */

typedef struct _drm_i810_tex_region {

        unsigned char next, prev; /* indices to form a circular LRU  */

        unsigned char in_use;   /* owned by a client, or free? */

        int age;                /* tracked by clients to update local LRU's */

} drm_i810_tex_region_t;

typedef struct _drm_i810_sarea {

        unsigned int ContextState[I810_CTX_SETUP_SIZE];

        unsigned int BufferState[I810_DEST_SETUP_SIZE];

        unsigned int TexState[2][I810_TEX_SETUP_SIZE];

        unsigned int dirty;

        unsigned int nbox;

        drm_clip_rect_t boxes[I810_NR_SAREA_CLIPRECTS];

        /* Maintain an LRU of contiguous regions of texture space.  If

         * you think you own a region of texture memory, and it has an

         * age different to the one you set, then you are mistaken and

         * it has been stolen by another client.  If global texAge

         * hasn't changed, there is no need to walk the list.

         *

         * These regions can be used as a proxy for the fine-grained

         * texture information of other clients - by maintaining them

         * in the same lru which is used to age their own textures,

         * clients have an approximate lru for the whole of global

         * texture space, and can make informed decisions as to which

         * areas to kick out.  There is no need to choose whether to

         * kick out your own texture or someone else's - simply eject

         * them all in LRU order.

         */

        drm_i810_tex_region_t texList[I810_NR_TEX_REGIONS+1];

                                /* Last elt is sentinal */

        int texAge;             /* last time texture was uploaded */

        int last_enqueue;       /* last time a buffer was enqueued */

        int last_dispatch;      /* age of the most recently dispatched buffer */

        int last_quiescent;     /*  */

        int ctxOwner;           /* last context to upload state */

        int vertex_prim;

} drm_i810_sarea_t;

typedef struct _drm_i810_clear {

        int clear_color;

        int clear_depth;

        int flags;

} drm_i810_clear_t;

/* These may be placeholders if we have more cliprects than

 * I810_NR_SAREA_CLIPRECTS.  In that case, the client sets discard to

 * false, indicating that the buffer will be dispatched again with a

 * new set of cliprects.

 */

typedef struct _drm_i810_vertex {

        int idx;                /* buffer index */

        int used;               /* nr bytes in use */

        int discard;            /* client is finished with the buffer? */

} drm_i810_vertex_t;

typedef struct _drm_i810_copy_t {

        int idx;                /* buffer index */

        int used;               /* nr bytes in use */

        void *address;          /* Address to copy from */

} drm_i810_copy_t;

typedef struct drm_i810_dma {

        void *virtual;

        int request_idx;

        int request_size;

        int granted;

} drm_i810_dma_t;

#endif /* _I810_DRM_H_ */