1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
90 lines
2.8 KiB
C
90 lines
2.8 KiB
C
#ifndef _GAMMA_DRM_H_
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#define _GAMMA_DRM_H_
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typedef struct _drm_gamma_tex_region {
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unsigned char next, prev; /* indices to form a circular LRU */
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unsigned char in_use; /* owned by a client, or free? */
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int age; /* tracked by clients to update local LRU's */
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} drm_gamma_tex_region_t;
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typedef struct {
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unsigned int GDeltaMode;
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unsigned int GDepthMode;
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unsigned int GGeometryMode;
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unsigned int GTransformMode;
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} drm_gamma_context_regs_t;
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typedef struct _drm_gamma_sarea {
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drm_gamma_context_regs_t context_state;
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unsigned int dirty;
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/* Maintain an LRU of contiguous regions of texture space. If
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* you think you own a region of texture memory, and it has an
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* age different to the one you set, then you are mistaken and
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* it has been stolen by another client. If global texAge
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* hasn't changed, there is no need to walk the list.
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*
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* These regions can be used as a proxy for the fine-grained
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* texture information of other clients - by maintaining them
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* in the same lru which is used to age their own textures,
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* clients have an approximate lru for the whole of global
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* texture space, and can make informed decisions as to which
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* areas to kick out. There is no need to choose whether to
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* kick out your own texture or someone else's - simply eject
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* them all in LRU order.
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*/
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#define GAMMA_NR_TEX_REGIONS 64
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drm_gamma_tex_region_t texList[GAMMA_NR_TEX_REGIONS+1];
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/* Last elt is sentinal */
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int texAge; /* last time texture was uploaded */
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int last_enqueue; /* last time a buffer was enqueued */
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int last_dispatch; /* age of the most recently dispatched buffer */
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int last_quiescent; /* */
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int ctxOwner; /* last context to upload state */
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int vertex_prim;
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} drm_gamma_sarea_t;
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/* WARNING: If you change any of these defines, make sure to change the
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* defines in the Xserver file (xf86drmGamma.h)
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*/
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/* Gamma specific ioctls
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* The device specific ioctl range is 0x40 to 0x79.
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*/
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#define DRM_IOCTL_GAMMA_INIT DRM_IOW( 0x40, drm_gamma_init_t)
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#define DRM_IOCTL_GAMMA_COPY DRM_IOW( 0x41, drm_gamma_copy_t)
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typedef struct drm_gamma_copy {
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unsigned int DMAOutputAddress;
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unsigned int DMAOutputCount;
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unsigned int DMAReadGLINTSource;
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unsigned int DMARectangleWriteAddress;
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unsigned int DMARectangleWriteLinePitch;
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unsigned int DMARectangleWrite;
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unsigned int DMARectangleReadAddress;
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unsigned int DMARectangleReadLinePitch;
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unsigned int DMARectangleRead;
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unsigned int DMARectangleReadTarget;
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} drm_gamma_copy_t;
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typedef struct drm_gamma_init {
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enum {
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GAMMA_INIT_DMA = 0x01,
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GAMMA_CLEANUP_DMA = 0x02
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} func;
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int sarea_priv_offset;
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int pcimode;
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unsigned int mmio0;
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unsigned int mmio1;
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unsigned int mmio2;
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unsigned int mmio3;
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unsigned int buffers_offset;
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int num_rast;
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} drm_gamma_init_t;
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#endif /* _GAMMA_DRM_H_ */
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