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- #ifndef _GAMMA_DRM_H_
- #define _GAMMA_DRM_H_
- typedef struct _drm_gamma_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_gamma_tex_region_t;
- typedef struct {
- unsigned int GDeltaMode;
- unsigned int GDepthMode;
- unsigned int GGeometryMode;
- unsigned int GTransformMode;
- } drm_gamma_context_regs_t;
- typedef struct _drm_gamma_sarea {
- drm_gamma_context_regs_t context_state;
- unsigned int dirty;
- /* 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.
- */
-
- #define GAMMA_NR_TEX_REGIONS 64
- drm_gamma_tex_region_t texList[GAMMA_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_gamma_sarea_t;
- /* WARNING: If you change any of these defines, make sure to change the
- * defines in the Xserver file (xf86drmGamma.h)
- */
- /* Gamma specific ioctls
- * The device specific ioctl range is 0x40 to 0x79.
- */
- #define DRM_IOCTL_GAMMA_INIT DRM_IOW( 0x40, drm_gamma_init_t)
- #define DRM_IOCTL_GAMMA_COPY DRM_IOW( 0x41, drm_gamma_copy_t)
- typedef struct drm_gamma_copy {
- unsigned int DMAOutputAddress;
- unsigned int DMAOutputCount;
- unsigned int DMAReadGLINTSource;
- unsigned int DMARectangleWriteAddress;
- unsigned int DMARectangleWriteLinePitch;
- unsigned int DMARectangleWrite;
- unsigned int DMARectangleReadAddress;
- unsigned int DMARectangleReadLinePitch;
- unsigned int DMARectangleRead;
- unsigned int DMARectangleReadTarget;
- } drm_gamma_copy_t;
- typedef struct drm_gamma_init {
- enum {
- GAMMA_INIT_DMA = 0x01,
- GAMMA_CLEANUP_DMA = 0x02
- } func;
- int sarea_priv_offset;
- int pcimode;
- unsigned int mmio0;
- unsigned int mmio1;
- unsigned int mmio2;
- unsigned int mmio3;
- unsigned int buffers_offset;
- int num_rast;
- } drm_gamma_init_t;
- #endif /* _GAMMA_DRM_H_ */
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