Initial revisionXORG-STABLE

1 files changed, 222 insertions, 0 deletions

diff --git a/src/mga_sarea.h b/src/mga_sarea.h
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--- /dev/null
+++ b/src/mga_sarea.h
@@ -0,0 +1,222 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/mga/mga_sarea.h,v 1.1 2001/03/21 17:11:47 dawes Exp $ */
+
+/*
+ * Copyright 2000 Gareth Hughes
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * GARETH HUGHES BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *   Gareth Hughes <gareth@valinux.com>
+ */
+
+#ifndef __MGA_SAREA_H__
+#define __MGA_SAREA_H__
+
+/* WARNING: If you change any of these defines, make sure to change
+ * the kernel include file as well (mga_drm.h)
+ */
+#ifndef __MGA_SAREA_DEFINES__
+#define __MGA_SAREA_DEFINES__
+
+/* WARP pipe flags
+ */
+#define MGA_F			0x1		/* fog */
+#define MGA_A			0x2		/* alpha */
+#define MGA_S			0x4		/* specular */
+#define MGA_T2			0x8		/* multitexture */
+
+#define MGA_WARP_TGZ		0
+#define MGA_WARP_TGZF		(MGA_F)
+#define MGA_WARP_TGZA		(MGA_A)
+#define MGA_WARP_TGZAF		(MGA_F|MGA_A)
+#define MGA_WARP_TGZS		(MGA_S)
+#define MGA_WARP_TGZSF		(MGA_S|MGA_F)
+#define MGA_WARP_TGZSA		(MGA_S|MGA_A)
+#define MGA_WARP_TGZSAF		(MGA_S|MGA_F|MGA_A)
+#define MGA_WARP_T2GZ		(MGA_T2)
+#define MGA_WARP_T2GZF		(MGA_T2|MGA_F)
+#define MGA_WARP_T2GZA		(MGA_T2|MGA_A)
+#define MGA_WARP_T2GZAF		(MGA_T2|MGA_A|MGA_F)
+#define MGA_WARP_T2GZS		(MGA_T2|MGA_S)
+#define MGA_WARP_T2GZSF		(MGA_T2|MGA_S|MGA_F)
+#define MGA_WARP_T2GZSA		(MGA_T2|MGA_S|MGA_A)
+#define MGA_WARP_T2GZSAF	(MGA_T2|MGA_S|MGA_F|MGA_A)
+
+#define MGA_MAX_G200_PIPES	8		/* no multitex */
+#define MGA_MAX_G400_PIPES	16
+#define MGA_MAX_WARP_PIPES	MGA_MAX_G400_PIPES
+#define MGA_WARP_UCODE_SIZE	32768		/* in bytes */
+
+#define MGA_CARD_TYPE_G200	1
+#define MGA_CARD_TYPE_G400	2
+
+
+#define MGA_FRONT		0x1
+#define MGA_BACK		0x2
+#define MGA_DEPTH		0x4
+
+/* What needs to be changed for the current vertex dma buffer?
+ */
+#define MGA_UPLOAD_CONTEXT	0x1
+#define MGA_UPLOAD_TEX0		0x2
+#define MGA_UPLOAD_TEX1		0x4
+#define MGA_UPLOAD_PIPE		0x8
+#define MGA_UPLOAD_TEX0IMAGE	0x10
+#define MGA_UPLOAD_TEX1IMAGE	0x20
+#define MGA_UPLOAD_2D		0x40
+#define MGA_WAIT_AGE		0x80 /* handled client-side */
+#define MGA_UPLOAD_CLIPRECTS	0x100 /* handled client-side */
+#if 0
+#define MGA_DMA_FLUSH		0x200 /* set when someone gets the lock
+					 quiescent */
+#endif
+
+/* 32 buffers of 64k each, total 1 meg.
+ */
+#define MGA_BUFFER_SIZE		(1 << 16)
+#define MGA_NUM_BUFFERS		128
+
+/* Keep these small for testing.
+ */
+#define MGA_NR_SAREA_CLIPRECTS	8
+
+/* 2 heaps (1 for card, 1 for agp), each divided into upto 128
+ * regions, subject to a minimum region size of (1<<16) == 64k.
+ *
+ * Clients may subdivide regions internally, but when sharing between
+ * clients, the region size is the minimum granularity.
+ */
+
+#define MGA_CARD_HEAP			0
+#define MGA_AGP_HEAP			1
+#define MGA_NR_TEX_HEAPS		2
+#define MGA_NR_TEX_REGIONS		16
+#define MGA_LOG_MIN_TEX_REGION_SIZE	16
+
+#endif /* __MGA_SAREA_DEFINES__ */
+
+
+/* Setup registers for 3D context
+ */
+typedef struct {
+   unsigned int dstorg;
+   unsigned int maccess;
+   unsigned int plnwt;
+   unsigned int dwgctl;
+   unsigned int alphactrl;
+   unsigned int fogcolor;
+   unsigned int wflag;
+   unsigned int tdualstage0;
+   unsigned int tdualstage1;
+   unsigned int fcol;
+   unsigned int stencil;
+   unsigned int stencilctl;
+} mga_context_regs_t;
+
+/* Setup registers for 2D, X server
+ */
+typedef struct {
+   unsigned int pitch;
+} mga_server_regs_t;
+
+/* Setup registers for each texture unit
+ */
+typedef struct {
+   unsigned int texctl;
+   unsigned int texctl2;
+   unsigned int texfilter;
+   unsigned int texbordercol;
+   unsigned int texorg;
+   unsigned int texwidth;
+   unsigned int texheight;
+   unsigned int texorg1;
+   unsigned int texorg2;
+   unsigned int texorg3;
+   unsigned int texorg4;
+} mga_texture_regs_t;
+
+/* General ageing mechanism
+ */
+typedef struct {
+	unsigned int head;		/* Position of head pointer          */
+	unsigned int wrap;		/* Primary DMA wrap count            */
+} mga_age_t;
+
+
+/* WARNING: Do not change the SAREA structure without changing the kernel
+ * as well.
+ */
+typedef struct {
+   /* The channel for communication of state information to the kernel
+    * on firing a vertex dma buffer.
+    */
+   mga_context_regs_t ContextState;
+   mga_server_regs_t ServerState;
+   mga_texture_regs_t TexState[2];
+   unsigned int WarpPipe;
+   unsigned int dirty;
+   unsigned int vertsize;
+
+   /* The current cliprects, or a subset thereof.
+    */
+   XF86DRIClipRectRec boxes[MGA_NR_SAREA_CLIPRECTS];
+   unsigned int nbox;
+
+   /* Information about the most recently used 3d drawable.  The
+    * client fills in the req_* fields, the server fills in the
+    * exported_ fields and puts the cliprects into boxes, above.
+    *
+    * The client clears the exported_drawable field before
+    * clobbering the boxes data.
+    */
+   unsigned int req_drawable;       /* the X drawable id */
+   unsigned int req_draw_buffer;    /* MGA_FRONT or MGA_BACK */
+
+   unsigned int exported_drawable;
+   unsigned int exported_index;
+   unsigned int exported_stamp;
+   unsigned int exported_buffers;
+   unsigned int exported_nfront;	/* FIXME: verify signedness... */
+   unsigned int exported_nback;
+   int exported_back_x, exported_front_x, exported_w;
+   int exported_back_y, exported_front_y, exported_h;
+   XF86DRIClipRectRec exported_boxes[MGA_NR_SAREA_CLIPRECTS];
+
+   /* Counters for aging textures and for client-side throttling.
+    */
+   unsigned int status[4];
+   unsigned int last_wrap;
+
+   mga_age_t last_frame;
+   unsigned int last_enqueue;       /* last time a buffer was enqueued */
+   unsigned int last_dispatch;      /* age of the most recently dispatched buffer */
+   unsigned int last_quiescent;     /*  */
+
+   /* LRU lists for texture memory in agp space and on the card.
+    */
+   drmTextureRegion texList[MGA_NR_TEX_HEAPS][MGA_NR_TEX_REGIONS+1];
+   unsigned int texAge[MGA_NR_TEX_HEAPS];
+
+   /* Last context that uploaded statel
+    */
+   int ctxOwner;
+} MGASAREAPrivRec, *MGASAREAPrivPtr;
+
+#endif