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!
diff --git a/drivers/char/drm/gamma_drm.h b/drivers/char/drm/gamma_drm.h
new file mode 100644
index 0000000..20819de
--- /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_ */