From ab87c5d0d1b5c35006ce8b99a9260e3116c732dc Mon Sep 17 00:00:00 2001 From: David Dawes Date: Thu, 14 Feb 2002 02:00:26 +0000 Subject: First pass of mesa-4-0 branch merge into trunk. --- linux/gamma_drm.h | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 linux/gamma_drm.h (limited to 'linux/gamma_drm.h') diff --git a/linux/gamma_drm.h b/linux/gamma_drm.h new file mode 100644 index 00000000..d06763ae --- /dev/null +++ b/linux/gamma_drm.h @@ -0,0 +1,79 @@ +#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; + +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; +} drm_gamma_init_t; + +#endif /* _GAMMA_DRM_H_ */ -- cgit v1.2.3