Linux-2.6.12-rc2

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!

1 files changed, 90 insertions, 0 deletions

diff --git a/drivers/char/drm/gamma_drm.h b/drivers/char/drm/gamma_drm.h
new file mode 100644
index 00000000000..20819ded0e1
--- /dev/null
+++ b/drivers/char/drm/gamma_drm.h
@@ -0,0 +1,90 @@
+#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_ */