From ba1b1ae3806490cce16a9c8957b52cd74967f463 Mon Sep 17 00:00:00 2001
From: Jeff Hartmann <jhartmann@valinux.com>
Date: Tue, 4 Apr 2000 22:08:14 +0000
Subject: Merged mga branch with trunk

---
 linux/mga_drm.h | 261 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 261 insertions(+)
 create mode 100644 linux/mga_drm.h

(limited to 'linux/mga_drm.h')

diff --git a/linux/mga_drm.h b/linux/mga_drm.h
new file mode 100644
index 00000000..12a858e7
--- /dev/null
+++ b/linux/mga_drm.h
@@ -0,0 +1,261 @@
+/* mga_drm.h -- Public header for the Matrox g200/g400 driver -*- linux-c -*-
+ * Created: Tue Jan 25 01:50:01 1999 by jhartmann@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * 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
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS 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: Jeff Hartmann <jhartmann@precisioninsight.com>
+ *          Keith Whitwell <keithw@precisioninsight.com>
+ *
+ * $XFree86$
+ */
+
+#ifndef _MGA_DRM_H_
+#define _MGA_DRM_H_
+
+/* WARNING: If you change any of these defines, make sure to change the
+ * defines in the Xserver file (xf86drmMga.h)
+ */
+#ifndef _MGA_DEFINES_
+#define _MGA_DEFINES_
+#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_G400_PIPES 16
+#define MGA_MAX_G200_PIPES  8	/* no multitex */
+
+#define MGA_MAX_WARP_PIPES MGA_MAX_G400_PIPES
+
+#define MGA_CARD_TYPE_G200 1
+#define MGA_CARD_TYPE_G400 2
+#define MGA_FRONT   0x1
+#define MGA_BACK    0x2
+#define MGA_DEPTH   0x4
+
+/* 3d state excluding texture units:
+ */
+#define MGA_CTXREG_DSTORG   0	/* validated */
+#define MGA_CTXREG_MACCESS  1	
+#define MGA_CTXREG_PLNWT    2	
+#define MGA_CTXREG_DWGCTL    3	
+#define MGA_CTXREG_ALPHACTRL 4
+#define MGA_CTXREG_FOGCOLOR  5
+#define MGA_CTXREG_WFLAG     6
+#define MGA_CTXREG_TDUAL0    7
+#define MGA_CTXREG_TDUAL1    8
+#define MGA_CTXREG_FCOL      9
+#define MGA_CTX_SETUP_SIZE   10
+
+/* 2d state
+ */
+#define MGA_2DREG_PITCH 	0
+#define MGA_2D_SETUP_SIZE 	1
+
+/* Each texture unit has a state:
+ */
+#define MGA_TEXREG_CTL        0
+#define MGA_TEXREG_CTL2       1
+#define MGA_TEXREG_FILTER     2
+#define MGA_TEXREG_BORDERCOL  3
+#define MGA_TEXREG_ORG        4 /* validated */
+#define MGA_TEXREG_ORG1       5
+#define MGA_TEXREG_ORG2       6
+#define MGA_TEXREG_ORG3       7
+#define MGA_TEXREG_ORG4       8
+#define MGA_TEXREG_WIDTH      9
+#define MGA_TEXREG_HEIGHT     10
+#define MGA_TEX_SETUP_SIZE    11
+
+/* What needs to be changed for the current vertex dma buffer?
+ */
+#define MGA_UPLOAD_CTX        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 */
+#define MGA_DMA_FLUSH	      0x200 /* set when someone gets the lock
+                                       quiescent */
+
+/* 64 buffers of 16k each, total 1 meg.
+ */
+#define MGA_DMA_BUF_ORDER     14
+#define MGA_DMA_BUF_SZ        (1<<MGA_DMA_BUF_ORDER)
+#define MGA_DMA_BUF_NR        63
+
+/* 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
+
+typedef struct _drm_mga_warp_index {
+   	int installed;
+   	unsigned long phys_addr;
+   	int size;
+} drm_mga_warp_index_t;
+
+typedef struct drm_mga_init {
+   	enum { 
+	   	MGA_INIT_DMA = 0x01,
+	       	MGA_CLEANUP_DMA = 0x02
+	} func;
+   	int reserved_map_agpstart;
+   	int reserved_map_idx;
+   	int buffer_map_idx;
+   	int sarea_priv_offset;
+   	int primary_size;
+   	int warp_ucode_size;
+   	int frontOffset;
+   	int backOffset;
+   	int depthOffset;
+   	int textureOffset;
+   	int textureSize;
+        int agpTextureOffset;
+        int agpTextureSize;
+   	int cpp;
+   	int stride;
+   	int sgram;
+	int chipset;
+   	drm_mga_warp_index_t WarpIndex[MGA_MAX_WARP_PIPES];
+	int mAccess;
+} drm_mga_init_t;
+
+/* Warning: if you change the sarea structure, you must change the Xserver
+ * structures as well */
+
+typedef struct _drm_mga_tex_region {
+	unsigned char next, prev;	
+	unsigned char in_use;	
+	int age;			
+} drm_mga_tex_region_t;
+
+typedef struct _drm_mga_sarea {
+	/* The channel for communication of state information to the kernel
+	 * on firing a vertex dma buffer.
+	 */
+   	unsigned int ContextState[MGA_CTX_SETUP_SIZE];
+   	unsigned int ServerState[MGA_2D_SETUP_SIZE];
+   	unsigned int TexState[2][MGA_TEX_SETUP_SIZE];
+   	unsigned int WarpPipe;
+   	unsigned int dirty;
+
+   	unsigned int nbox;
+   	drm_clip_rect_t boxes[MGA_NR_SAREA_CLIPRECTS];
+
+
+	/* 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;
+        unsigned int exported_nback;
+	int exported_back_x, exported_front_x, exported_w;	
+	int exported_back_y, exported_front_y, exported_h;
+   	drm_clip_rect_t exported_boxes[MGA_NR_SAREA_CLIPRECTS];
+   
+	/* Counters for aging textures and for client-side throttling.
+	 */
+        int last_enqueue;	/* last time a buffer was enqueued */
+	int last_dispatch;	/* age of the most recently dispatched buffer */
+	int last_quiescent;     /*  */
+
+
+	/* LRU lists for texture memory in agp space and on the card
+	 */
+	drm_mga_tex_region_t texList[MGA_NR_TEX_HEAPS][MGA_NR_TEX_REGIONS+1];
+	unsigned int texAge[MGA_NR_TEX_HEAPS];
+	
+	/* Mechanism to validate card state.
+	 */
+   	int ctxOwner;
+} drm_mga_sarea_t;	
+
+/* Device specific ioctls:
+ */
+typedef struct _drm_mga_clear {
+	int clear_color;
+	int clear_depth;
+	int flags;
+} drm_mga_clear_t;
+
+typedef struct _drm_mga_swap {
+   	int dummy;
+} drm_mga_swap_t;
+
+typedef struct _drm_mga_iload {
+	int idx;
+	int length;
+	unsigned int destOrg;
+} drm_mga_iload_t;
+
+typedef struct _drm_mga_vertex {
+   	int idx;		/* buffer to queue */
+	int used;		/* bytes in use */
+	int discard;		/* client finished with buffer?  */
+} drm_mga_vertex_t;
+
+#endif
-- 
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