i830_common.h

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/**************************************************************************

Copyright 2001 VA Linux Systems Inc., Fremont, California.
Copyright 2002 Tungsten Graphics Inc., Cedar Park, Texas.

All Rights Reserved.

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#ifndef _I830_COMMON_H_
#define _I830_COMMON_H_


#define I830_NR_TEX_REGIONS 255 /* maximum due to use of chars for next/prev */
#define I830_LOG_MIN_TEX_REGION_SIZE 14


/* Driver specific DRM command indices
 * NOTE: these are not OS specific, but they are driver specific
 */
#define DRM_I830_INIT                     0x00
#define DRM_I830_FLUSH                    0x01
#define DRM_I830_FLIP                     0x02
#define DRM_I830_BATCHBUFFER              0x03
#define DRM_I830_IRQ_EMIT                 0x04
#define DRM_I830_IRQ_WAIT                 0x05
#define DRM_I830_GETPARAM                 0x06
#define DRM_I830_SETPARAM                 0x07
#define DRM_I830_ALLOC                    0x08
#define DRM_I830_FREE                     0x09
#define DRM_I830_INIT_HEAP                0x0a
#define DRM_I830_CMDBUFFER                0x0b
#define DRM_I830_DESTROY_HEAP             0x0c
#define DRM_I830_SET_VBLANK_PIPE          0x0d
#define DRM_I830_GET_VBLANK_PIPE          0x0e
#define DRM_I830_MMIO                     0x10

typedef struct {
   enum {
      I830_INIT_DMA = 0x01,
      I830_CLEANUP_DMA = 0x02,
      I830_RESUME_DMA = 0x03
   } func;
   unsigned int mmio_offset;
   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;
   unsigned int back_pitch;
   unsigned int depth_pitch;
   unsigned int cpp;
   unsigned int chipset;
} drmI830Init;

typedef struct {
        drmTextureRegion texList[I830_NR_TEX_REGIONS+1];
        int last_upload;        /* 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 ctxOwner;           /* last context to upload state */
        int texAge;
        int pf_enabled;         /* is pageflipping allowed? */
        int pf_active;
        int pf_current_page;    /* which buffer is being displayed? */
        int perf_boxes;         /* performance boxes to be displayed */
        int width, height;      /* screen size in pixels */

        drm_handle_t front_handle;
        int front_offset;
        int front_size;

        drm_handle_t back_handle;
        int back_offset;
        int back_size;

        drm_handle_t depth_handle;
        int depth_offset;
        int depth_size;

        drm_handle_t tex_handle;
        int tex_offset;
        int tex_size;
        int log_tex_granularity;
        int pitch;
        int rotation;           /* 0, 90, 180 or 270 */
        int rotated_offset;
        int rotated_size;
        int rotated_pitch;
        int virtualX, virtualY;

        unsigned int front_tiled;
        unsigned int back_tiled;
        unsigned int depth_tiled;
        unsigned int rotated_tiled;
        unsigned int rotated2_tiled;

        int planeA_x;
        int planeA_y;
        int planeA_w;
        int planeA_h;
        int planeB_x;
        int planeB_y;
        int planeB_w;
        int planeB_h;

        /* Triple buffering */
        drm_handle_t third_handle;
        int third_offset;
        int third_size;
        unsigned int third_tiled;

        /* buffer object handles for the static buffers.  May change
         * over the lifetime of the client, though it doesn't in our current
         * implementation.
         */
        unsigned int front_bo_handle;
        unsigned int back_bo_handle;
        unsigned int third_bo_handle;
        unsigned int depth_bo_handle;
} drmI830Sarea;

/* Flags for perf_boxes
 */
#define I830_BOX_RING_EMPTY    0x1 /* populated by kernel */
#define I830_BOX_FLIP          0x2 /* populated by kernel */
#define I830_BOX_WAIT          0x4 /* populated by kernel & client */
#define I830_BOX_TEXTURE_LOAD  0x8 /* populated by kernel */
#define I830_BOX_LOST_CONTEXT  0x10 /* populated by client */


typedef struct {
        int start;              /* agp offset */
        int used;               /* nr bytes in use */
        int DR1;                /* hw flags for GFX_OP_DRAWRECT_INFO */
        int DR4;                /* window origin for GFX_OP_DRAWRECT_INFO*/
        int num_cliprects;      /* mulitpass with multiple cliprects? */
        drm_clip_rect_t *cliprects; /* pointer to userspace cliprects */
} drmI830BatchBuffer;

typedef struct {
        char *buf;              /* agp offset */
        int sz;                 /* nr bytes in use */
        int DR1;                /* hw flags for GFX_OP_DRAWRECT_INFO */
        int DR4;                /* window origin for GFX_OP_DRAWRECT_INFO*/
        int num_cliprects;      /* mulitpass with multiple cliprects? */
        drm_clip_rect_t *cliprects; /* pointer to userspace cliprects */
} drmI830CmdBuffer;

typedef struct {
        int *irq_seq;
} drmI830IrqEmit;

typedef struct {
        int irq_seq;
} drmI830IrqWait;

typedef struct {
        int param;
        int *value;
} drmI830GetParam;

#define I830_PARAM_IRQ_ACTIVE     1
#define I830_PARAM_ALLOW_BATCHBUFFER   2

typedef struct {
        int param;
        int value;
} drmI830SetParam;

#define I830_SETPARAM_USE_MI_BATCHBUFFER_START  1
#define I830_SETPARAM_TEX_LRU_LOG_GRANULARITY   2
#define I830_SETPARAM_ALLOW_BATCHBUFFER         3


/* A memory manager for regions of shared memory:
 */
#define I830_MEM_REGION_AGP 1

typedef struct {
        int region;
        int alignment;
        int size;
        int *region_offset;     /* offset from start of fb or agp */
} drmI830MemAlloc;

typedef struct {
        int region;
        int region_offset;
} drmI830MemFree;

typedef struct {
        int region;
        int size;
        int start;      
} drmI830MemInitHeap;

typedef struct {
        int region;
} drmI830MemDestroyHeap;

#define DRM_I830_VBLANK_PIPE_A  1
#define DRM_I830_VBLANK_PIPE_B  2

typedef struct {
        int pipe;
} drmI830VBlankPipe;

#define MMIO_READ  0
#define MMIO_WRITE 1

#define MMIO_REGS_IA_PRIMATIVES_COUNT           0
#define MMIO_REGS_IA_VERTICES_COUNT             1
#define MMIO_REGS_VS_INVOCATION_COUNT           2
#define MMIO_REGS_GS_PRIMITIVES_COUNT           3
#define MMIO_REGS_GS_INVOCATION_COUNT           4
#define MMIO_REGS_CL_PRIMITIVES_COUNT           5
#define MMIO_REGS_CL_INVOCATION_COUNT           6
#define MMIO_REGS_PS_INVOCATION_COUNT           7
#define MMIO_REGS_PS_DEPTH_COUNT                8

typedef struct {
        unsigned int read_write:1;
        unsigned int reg:31;
        void __user *data;
} drmI830MMIO;

#endif /* _I830_DRM_H_ */

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