1 /* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/mga/mga_sarea.h,v 1.1 2001/03/21 17:11:47 dawes Exp $ */
4 * Copyright 2000 Gareth Hughes
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice (including the next
15 * paragraph) shall be included in all copies or substantial portions of the
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * GARETH HUGHES BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
22 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 * Gareth Hughes <gareth@valinux.com>
29 #ifndef __MGA_SAREA_H__
30 #define __MGA_SAREA_H__
32 /* WARNING: If you change any of these defines, make sure to change
33 * the kernel include file as well (mga_drm.h)
35 #ifndef __MGA_SAREA_DEFINES__
36 #define __MGA_SAREA_DEFINES__
40 #define MGA_F 0x1 /* fog */
41 #define MGA_A 0x2 /* alpha */
42 #define MGA_S 0x4 /* specular */
43 #define MGA_T2 0x8 /* multitexture */
45 #define MGA_WARP_TGZ 0
46 #define MGA_WARP_TGZF (MGA_F)
47 #define MGA_WARP_TGZA (MGA_A)
48 #define MGA_WARP_TGZAF (MGA_F|MGA_A)
49 #define MGA_WARP_TGZS (MGA_S)
50 #define MGA_WARP_TGZSF (MGA_S|MGA_F)
51 #define MGA_WARP_TGZSA (MGA_S|MGA_A)
52 #define MGA_WARP_TGZSAF (MGA_S|MGA_F|MGA_A)
53 #define MGA_WARP_T2GZ (MGA_T2)
54 #define MGA_WARP_T2GZF (MGA_T2|MGA_F)
55 #define MGA_WARP_T2GZA (MGA_T2|MGA_A)
56 #define MGA_WARP_T2GZAF (MGA_T2|MGA_A|MGA_F)
57 #define MGA_WARP_T2GZS (MGA_T2|MGA_S)
58 #define MGA_WARP_T2GZSF (MGA_T2|MGA_S|MGA_F)
59 #define MGA_WARP_T2GZSA (MGA_T2|MGA_S|MGA_A)
60 #define MGA_WARP_T2GZSAF (MGA_T2|MGA_S|MGA_F|MGA_A)
62 #define MGA_MAX_G200_PIPES 8 /* no multitex */
63 #define MGA_MAX_G400_PIPES 16
64 #define MGA_MAX_WARP_PIPES MGA_MAX_G400_PIPES
65 #define MGA_WARP_UCODE_SIZE 32768 /* in bytes */
67 #define MGA_CARD_TYPE_G200 1
68 #define MGA_CARD_TYPE_G400 2
75 /* What needs to be changed for the current vertex dma buffer?
77 #define MGA_UPLOAD_CONTEXT 0x1
78 #define MGA_UPLOAD_TEX0 0x2
79 #define MGA_UPLOAD_TEX1 0x4
80 #define MGA_UPLOAD_PIPE 0x8
81 #define MGA_UPLOAD_TEX0IMAGE 0x10
82 #define MGA_UPLOAD_TEX1IMAGE 0x20
83 #define MGA_UPLOAD_2D 0x40
84 #define MGA_WAIT_AGE 0x80 /* handled client-side */
85 #define MGA_UPLOAD_CLIPRECTS 0x100 /* handled client-side */
87 #define MGA_DMA_FLUSH 0x200 /* set when someone gets the lock
91 /* 32 buffers of 64k each, total 1 meg.
93 #define MGA_BUFFER_SIZE (1 << 16)
94 #define MGA_NUM_BUFFERS 128
96 /* Keep these small for testing.
98 #define MGA_NR_SAREA_CLIPRECTS 8
100 /* 2 heaps (1 for card, 1 for agp), each divided into upto 128
101 * regions, subject to a minimum region size of (1<<16) == 64k.
103 * Clients may subdivide regions internally, but when sharing between
104 * clients, the region size is the minimum granularity.
107 #define MGA_CARD_HEAP 0
108 #define MGA_AGP_HEAP 1
109 #define MGA_NR_TEX_HEAPS 2
110 #define MGA_NR_TEX_REGIONS 16
111 #define MGA_LOG_MIN_TEX_REGION_SIZE 16
113 #endif /* __MGA_SAREA_DEFINES__ */
116 /* Setup registers for 3D context
120 unsigned int maccess
;
123 unsigned int alphactrl
;
124 unsigned int fogcolor
;
126 unsigned int tdualstage0
;
127 unsigned int tdualstage1
;
129 unsigned int stencil
;
130 unsigned int stencilctl
;
131 } mga_context_regs_t
;
133 /* Setup registers for 2D, X server
139 /* Setup registers for each texture unit
143 unsigned int texctl2
;
144 unsigned int texfilter
;
145 unsigned int texbordercol
;
147 unsigned int texwidth
;
148 unsigned int texheight
;
149 unsigned int texorg1
;
150 unsigned int texorg2
;
151 unsigned int texorg3
;
152 unsigned int texorg4
;
153 } mga_texture_regs_t
;
155 /* General ageing mechanism
158 unsigned int head
; /* Position of head pointer */
159 unsigned int wrap
; /* Primary DMA wrap count */
163 /* WARNING: Do not change the SAREA structure without changing the kernel
167 /* The channel for communication of state information to the kernel
168 * on firing a vertex dma buffer.
170 mga_context_regs_t ContextState
;
171 mga_server_regs_t ServerState
;
172 mga_texture_regs_t TexState
[2];
173 unsigned int WarpPipe
;
175 unsigned int vertsize
;
177 /* The current cliprects, or a subset thereof.
179 XF86DRIClipRectRec boxes
[MGA_NR_SAREA_CLIPRECTS
];
182 /* Information about the most recently used 3d drawable. The
183 * client fills in the req_* fields, the server fills in the
184 * exported_ fields and puts the cliprects into boxes, above.
186 * The client clears the exported_drawable field before
187 * clobbering the boxes data.
190 unsigned int req_draw_buffer
; /* MGA_FRONT or MGA_BACK */
192 unsigned int exported_drawable
;
193 unsigned int exported_index
;
194 unsigned int exported_stamp
;
195 unsigned int exported_buffers
;
196 unsigned int exported_nfront
; /* FIXME: verify signedness... */
197 unsigned int exported_nback
;
198 int exported_back_x
, exported_front_x
, exported_w
;
199 int exported_back_y
, exported_front_y
, exported_h
;
200 XF86DRIClipRectRec exported_boxes
[MGA_NR_SAREA_CLIPRECTS
];
202 /* Counters for aging textures and for client-side throttling.
204 unsigned int status
[4];
205 unsigned int last_wrap
;
207 mga_age_t last_frame
;
208 unsigned int last_enqueue
; /* last time a buffer was enqueued */
209 unsigned int last_dispatch
; /* age of the most recently dispatched buffer */
210 unsigned int last_quiescent
; /* */
212 /* LRU lists for texture memory in agp space and on the card.
214 drmTextureRegion texList
[MGA_NR_TEX_HEAPS
][MGA_NR_TEX_REGIONS
+1];
215 unsigned int texAge
[MGA_NR_TEX_HEAPS
];
217 /* Last context that uploaded statel
220 } MGASAREAPrivRec
, *MGASAREAPrivPtr
;