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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* mga_drm.h -- Public header for the Matrox g200/g400 driver -*- linux-c -*-
2 * Created: Tue Jan 25 01:50:01 1999 by jhartmann@precisioninsight.com
3 *
4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
6 * All rights reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
17 * Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 * OTHER DEALINGS IN THE SOFTWARE.
26 *
27 * Authors:
28 * Jeff Hartmann <jhartmann@valinux.com>
29 * Keith Whitwell <keith@tungstengraphics.com>
30 *
31 * Rewritten by:
32 * Gareth Hughes <gareth@valinux.com>
33 */
34
35#ifndef __MGA_DRM_H__
36#define __MGA_DRM_H__
37
Arnd Bergmann1d7f83d2009-02-26 00:51:42 +010038#include <linux/types.h>
39
Linus Torvalds1da177e2005-04-16 15:20:36 -070040/* WARNING: If you change any of these defines, make sure to change the
41 * defines in the Xserver file (mga_sarea.h)
42 */
43
44#ifndef __MGA_SAREA_DEFINES__
45#define __MGA_SAREA_DEFINES__
46
47/* WARP pipe flags
48 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +100049#define MGA_F 0x1 /* fog */
50#define MGA_A 0x2 /* alpha */
51#define MGA_S 0x4 /* specular */
52#define MGA_T2 0x8 /* multitexture */
Linus Torvalds1da177e2005-04-16 15:20:36 -070053
54#define MGA_WARP_TGZ 0
55#define MGA_WARP_TGZF (MGA_F)
56#define MGA_WARP_TGZA (MGA_A)
57#define MGA_WARP_TGZAF (MGA_F|MGA_A)
58#define MGA_WARP_TGZS (MGA_S)
59#define MGA_WARP_TGZSF (MGA_S|MGA_F)
60#define MGA_WARP_TGZSA (MGA_S|MGA_A)
61#define MGA_WARP_TGZSAF (MGA_S|MGA_F|MGA_A)
62#define MGA_WARP_T2GZ (MGA_T2)
63#define MGA_WARP_T2GZF (MGA_T2|MGA_F)
64#define MGA_WARP_T2GZA (MGA_T2|MGA_A)
65#define MGA_WARP_T2GZAF (MGA_T2|MGA_A|MGA_F)
66#define MGA_WARP_T2GZS (MGA_T2|MGA_S)
67#define MGA_WARP_T2GZSF (MGA_T2|MGA_S|MGA_F)
68#define MGA_WARP_T2GZSA (MGA_T2|MGA_S|MGA_A)
69#define MGA_WARP_T2GZSAF (MGA_T2|MGA_S|MGA_F|MGA_A)
70
Dave Airlieb5e89ed2005-09-25 14:28:13 +100071#define MGA_MAX_G200_PIPES 8 /* no multitex */
Linus Torvalds1da177e2005-04-16 15:20:36 -070072#define MGA_MAX_G400_PIPES 16
73#define MGA_MAX_WARP_PIPES MGA_MAX_G400_PIPES
Dave Airlieb5e89ed2005-09-25 14:28:13 +100074#define MGA_WARP_UCODE_SIZE 32768 /* in bytes */
Linus Torvalds1da177e2005-04-16 15:20:36 -070075
76#define MGA_CARD_TYPE_G200 1
77#define MGA_CARD_TYPE_G400 2
Dave Airlieb5e89ed2005-09-25 14:28:13 +100078#define MGA_CARD_TYPE_G450 3 /* not currently used */
Dave Airlie93f453f2005-07-10 17:45:34 +100079#define MGA_CARD_TYPE_G550 4
Linus Torvalds1da177e2005-04-16 15:20:36 -070080
81#define MGA_FRONT 0x1
82#define MGA_BACK 0x2
83#define MGA_DEPTH 0x4
84
85/* What needs to be changed for the current vertex dma buffer?
86 */
87#define MGA_UPLOAD_CONTEXT 0x1
88#define MGA_UPLOAD_TEX0 0x2
89#define MGA_UPLOAD_TEX1 0x4
90#define MGA_UPLOAD_PIPE 0x8
Dave Airlieb5e89ed2005-09-25 14:28:13 +100091#define MGA_UPLOAD_TEX0IMAGE 0x10 /* handled client-side */
92#define MGA_UPLOAD_TEX1IMAGE 0x20 /* handled client-side */
Linus Torvalds1da177e2005-04-16 15:20:36 -070093#define MGA_UPLOAD_2D 0x40
Dave Airlieb5e89ed2005-09-25 14:28:13 +100094#define MGA_WAIT_AGE 0x80 /* handled client-side */
95#define MGA_UPLOAD_CLIPRECTS 0x100 /* handled client-side */
Linus Torvalds1da177e2005-04-16 15:20:36 -070096#if 0
Dave Airlieb5e89ed2005-09-25 14:28:13 +100097#define MGA_DMA_FLUSH 0x200 /* set when someone gets the lock
98 quiescent */
Linus Torvalds1da177e2005-04-16 15:20:36 -070099#endif
100
101/* 32 buffers of 64k each, total 2 meg.
102 */
103#define MGA_BUFFER_SIZE (1 << 16)
104#define MGA_NUM_BUFFERS 128
105
106/* Keep these small for testing.
107 */
108#define MGA_NR_SAREA_CLIPRECTS 8
109
110/* 2 heaps (1 for card, 1 for agp), each divided into upto 128
111 * regions, subject to a minimum region size of (1<<16) == 64k.
112 *
113 * Clients may subdivide regions internally, but when sharing between
114 * clients, the region size is the minimum granularity.
115 */
116
117#define MGA_CARD_HEAP 0
118#define MGA_AGP_HEAP 1
119#define MGA_NR_TEX_HEAPS 2
120#define MGA_NR_TEX_REGIONS 16
121#define MGA_LOG_MIN_TEX_REGION_SIZE 16
122
123#define DRM_MGA_IDLE_RETRY 2048
124
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000125#endif /* __MGA_SAREA_DEFINES__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126
127/* Setup registers for 3D context
128 */
129typedef struct {
130 unsigned int dstorg;
131 unsigned int maccess;
132 unsigned int plnwt;
133 unsigned int dwgctl;
134 unsigned int alphactrl;
135 unsigned int fogcolor;
136 unsigned int wflag;
137 unsigned int tdualstage0;
138 unsigned int tdualstage1;
139 unsigned int fcol;
140 unsigned int stencil;
141 unsigned int stencilctl;
142} drm_mga_context_regs_t;
143
144/* Setup registers for 2D, X server
145 */
146typedef struct {
147 unsigned int pitch;
148} drm_mga_server_regs_t;
149
150/* Setup registers for each texture unit
151 */
152typedef struct {
153 unsigned int texctl;
154 unsigned int texctl2;
155 unsigned int texfilter;
156 unsigned int texbordercol;
157 unsigned int texorg;
158 unsigned int texwidth;
159 unsigned int texheight;
160 unsigned int texorg1;
161 unsigned int texorg2;
162 unsigned int texorg3;
163 unsigned int texorg4;
164} drm_mga_texture_regs_t;
165
166/* General aging mechanism
167 */
168typedef struct {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000169 unsigned int head; /* Position of head pointer */
170 unsigned int wrap; /* Primary DMA wrap count */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171} drm_mga_age_t;
172
173typedef struct _drm_mga_sarea {
174 /* The channel for communication of state information to the kernel
175 * on firing a vertex dma buffer.
176 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000177 drm_mga_context_regs_t context_state;
178 drm_mga_server_regs_t server_state;
179 drm_mga_texture_regs_t tex_state[2];
180 unsigned int warp_pipe;
181 unsigned int dirty;
182 unsigned int vertsize;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183
184 /* The current cliprects, or a subset thereof.
185 */
Dave Airlieeddca552007-07-11 16:09:54 +1000186 struct drm_clip_rect boxes[MGA_NR_SAREA_CLIPRECTS];
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000187 unsigned int nbox;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188
189 /* Information about the most recently used 3d drawable. The
190 * client fills in the req_* fields, the server fills in the
191 * exported_ fields and puts the cliprects into boxes, above.
192 *
193 * The client clears the exported_drawable field before
194 * clobbering the boxes data.
195 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000196 unsigned int req_drawable; /* the X drawable id */
197 unsigned int req_draw_buffer; /* MGA_FRONT or MGA_BACK */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000199 unsigned int exported_drawable;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200 unsigned int exported_index;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000201 unsigned int exported_stamp;
202 unsigned int exported_buffers;
203 unsigned int exported_nfront;
204 unsigned int exported_nback;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205 int exported_back_x, exported_front_x, exported_w;
206 int exported_back_y, exported_front_y, exported_h;
Dave Airlieeddca552007-07-11 16:09:54 +1000207 struct drm_clip_rect exported_boxes[MGA_NR_SAREA_CLIPRECTS];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208
209 /* Counters for aging textures and for client-side throttling.
210 */
211 unsigned int status[4];
212 unsigned int last_wrap;
213
214 drm_mga_age_t last_frame;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000215 unsigned int last_enqueue; /* last time a buffer was enqueued */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216 unsigned int last_dispatch; /* age of the most recently dispatched buffer */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000217 unsigned int last_quiescent; /* */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218
219 /* LRU lists for texture memory in agp space and on the card.
220 */
Dave Airlieeddca552007-07-11 16:09:54 +1000221 struct drm_tex_region texList[MGA_NR_TEX_HEAPS][MGA_NR_TEX_REGIONS + 1];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222 unsigned int texAge[MGA_NR_TEX_HEAPS];
223
224 /* Mechanism to validate card state.
225 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000226 int ctxOwner;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227} drm_mga_sarea_t;
228
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229/* MGA specific ioctls
230 * The device specific ioctl range is 0x40 to 0x79.
231 */
232#define DRM_MGA_INIT 0x00
233#define DRM_MGA_FLUSH 0x01
234#define DRM_MGA_RESET 0x02
235#define DRM_MGA_SWAP 0x03
236#define DRM_MGA_CLEAR 0x04
237#define DRM_MGA_VERTEX 0x05
238#define DRM_MGA_INDICES 0x06
239#define DRM_MGA_ILOAD 0x07
240#define DRM_MGA_BLIT 0x08
241#define DRM_MGA_GETPARAM 0x09
242
Dave Airlie6795c982005-07-10 18:20:09 +1000243/* 3.2:
244 * ioctls for operating on fences.
245 */
246#define DRM_MGA_SET_FENCE 0x0a
247#define DRM_MGA_WAIT_FENCE 0x0b
248#define DRM_MGA_DMA_BOOTSTRAP 0x0c
249
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250#define DRM_IOCTL_MGA_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_INIT, drm_mga_init_t)
251#define DRM_IOCTL_MGA_FLUSH DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_FLUSH, drm_lock_t)
252#define DRM_IOCTL_MGA_RESET DRM_IO( DRM_COMMAND_BASE + DRM_MGA_RESET)
253#define DRM_IOCTL_MGA_SWAP DRM_IO( DRM_COMMAND_BASE + DRM_MGA_SWAP)
254#define DRM_IOCTL_MGA_CLEAR DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_CLEAR, drm_mga_clear_t)
255#define DRM_IOCTL_MGA_VERTEX DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_VERTEX, drm_mga_vertex_t)
256#define DRM_IOCTL_MGA_INDICES DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_INDICES, drm_mga_indices_t)
257#define DRM_IOCTL_MGA_ILOAD DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_ILOAD, drm_mga_iload_t)
258#define DRM_IOCTL_MGA_BLIT DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_BLIT, drm_mga_blit_t)
259#define DRM_IOCTL_MGA_GETPARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_MGA_GETPARAM, drm_mga_getparam_t)
Arnd Bergmann1d7f83d2009-02-26 00:51:42 +0100260#define DRM_IOCTL_MGA_SET_FENCE DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_SET_FENCE, __u32)
261#define DRM_IOCTL_MGA_WAIT_FENCE DRM_IOWR(DRM_COMMAND_BASE + DRM_MGA_WAIT_FENCE, __u32)
Dave Airlie6795c982005-07-10 18:20:09 +1000262#define DRM_IOCTL_MGA_DMA_BOOTSTRAP DRM_IOWR(DRM_COMMAND_BASE + DRM_MGA_DMA_BOOTSTRAP, drm_mga_dma_bootstrap_t)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263
264typedef struct _drm_mga_warp_index {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000265 int installed;
266 unsigned long phys_addr;
267 int size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268} drm_mga_warp_index_t;
269
270typedef struct drm_mga_init {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000271 enum {
272 MGA_INIT_DMA = 0x01,
273 MGA_CLEANUP_DMA = 0x02
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274 } func;
275
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000276 unsigned long sarea_priv_offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277
278 int chipset;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000279 int sgram;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280
281 unsigned int maccess;
282
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000283 unsigned int fb_cpp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284 unsigned int front_offset, front_pitch;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000285 unsigned int back_offset, back_pitch;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000287 unsigned int depth_cpp;
288 unsigned int depth_offset, depth_pitch;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000290 unsigned int texture_offset[MGA_NR_TEX_HEAPS];
291 unsigned int texture_size[MGA_NR_TEX_HEAPS];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292
293 unsigned long fb_offset;
294 unsigned long mmio_offset;
295 unsigned long status_offset;
296 unsigned long warp_offset;
297 unsigned long primary_offset;
298 unsigned long buffers_offset;
299} drm_mga_init_t;
300
Dave Airlie6795c982005-07-10 18:20:09 +1000301typedef struct drm_mga_dma_bootstrap {
302 /**
303 * \name AGP texture region
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000304 *
Dave Airlie6795c982005-07-10 18:20:09 +1000305 * On return from the DRM_MGA_DMA_BOOTSTRAP ioctl, these fields will
306 * be filled in with the actual AGP texture settings.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000307 *
Dave Airlie6795c982005-07-10 18:20:09 +1000308 * \warning
309 * If these fields are non-zero, but dma_mga_dma_bootstrap::agp_mode
310 * is zero, it means that PCI memory (most likely through the use of
311 * an IOMMU) is being used for "AGP" textures.
312 */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000313 /*@{ */
Dave Airlied1f2b552005-08-05 22:11:22 +1000314 unsigned long texture_handle; /**< Handle used to map AGP textures. */
Arnd Bergmann1d7f83d2009-02-26 00:51:42 +0100315 __u32 texture_size; /**< Size of the AGP texture region. */
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000316 /*@} */
Dave Airlie6795c982005-07-10 18:20:09 +1000317
318 /**
319 * Requested size of the primary DMA region.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000320 *
Dave Airlie6795c982005-07-10 18:20:09 +1000321 * On return from the DRM_MGA_DMA_BOOTSTRAP ioctl, this field will be
322 * filled in with the actual AGP mode. If AGP was not available
323 */
Arnd Bergmann1d7f83d2009-02-26 00:51:42 +0100324 __u32 primary_size;
Dave Airlie6795c982005-07-10 18:20:09 +1000325
Dave Airlie6795c982005-07-10 18:20:09 +1000326 /**
327 * Requested number of secondary DMA buffers.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000328 *
Dave Airlie6795c982005-07-10 18:20:09 +1000329 * On return from the DRM_MGA_DMA_BOOTSTRAP ioctl, this field will be
330 * filled in with the actual number of secondary DMA buffers
331 * allocated. Particularly when PCI DMA is used, this may be
332 * (subtantially) less than the number requested.
333 */
Arnd Bergmann1d7f83d2009-02-26 00:51:42 +0100334 __u32 secondary_bin_count;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000335
Dave Airlie6795c982005-07-10 18:20:09 +1000336 /**
337 * Requested size of each secondary DMA buffer.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000338 *
Dave Airlie6795c982005-07-10 18:20:09 +1000339 * While the kernel \b is free to reduce
340 * dma_mga_dma_bootstrap::secondary_bin_count, it is \b not allowed
341 * to reduce dma_mga_dma_bootstrap::secondary_bin_size.
342 */
Arnd Bergmann1d7f83d2009-02-26 00:51:42 +0100343 __u32 secondary_bin_size;
Dave Airlie6795c982005-07-10 18:20:09 +1000344
Dave Airlie6795c982005-07-10 18:20:09 +1000345 /**
346 * Bit-wise mask of AGPSTAT2_* values. Currently only \c AGPSTAT2_1X,
347 * \c AGPSTAT2_2X, and \c AGPSTAT2_4X are supported. If this value is
348 * zero, it means that PCI DMA should be used, even if AGP is
349 * possible.
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000350 *
Dave Airlie6795c982005-07-10 18:20:09 +1000351 * On return from the DRM_MGA_DMA_BOOTSTRAP ioctl, this field will be
352 * filled in with the actual AGP mode. If AGP was not available
353 * (i.e., PCI DMA was used), this value will be zero.
354 */
Arnd Bergmann1d7f83d2009-02-26 00:51:42 +0100355 __u32 agp_mode;
Dave Airlie6795c982005-07-10 18:20:09 +1000356
Dave Airlie6795c982005-07-10 18:20:09 +1000357 /**
358 * Desired AGP GART size, measured in megabytes.
359 */
Arnd Bergmann1d7f83d2009-02-26 00:51:42 +0100360 __u8 agp_size;
Dave Airlie6795c982005-07-10 18:20:09 +1000361} drm_mga_dma_bootstrap_t;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362
363typedef struct drm_mga_clear {
364 unsigned int flags;
365 unsigned int clear_color;
366 unsigned int clear_depth;
367 unsigned int color_mask;
368 unsigned int depth_mask;
369} drm_mga_clear_t;
370
371typedef struct drm_mga_vertex {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000372 int idx; /* buffer to queue */
373 int used; /* bytes in use */
374 int discard; /* client finished with buffer? */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375} drm_mga_vertex_t;
376
377typedef struct drm_mga_indices {
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000378 int idx; /* buffer to queue */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 unsigned int start;
380 unsigned int end;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000381 int discard; /* client finished with buffer? */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382} drm_mga_indices_t;
383
384typedef struct drm_mga_iload {
385 int idx;
386 unsigned int dstorg;
387 unsigned int length;
388} drm_mga_iload_t;
389
390typedef struct _drm_mga_blit {
391 unsigned int planemask;
392 unsigned int srcorg;
393 unsigned int dstorg;
394 int src_pitch, dst_pitch;
395 int delta_sx, delta_sy;
396 int delta_dx, delta_dy;
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000397 int height, ydir; /* flip image vertically */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 int source_pitch, dest_pitch;
399} drm_mga_blit_t;
400
401/* 3.1: An ioctl to get parameters that aren't available to the 3d
Dave Airlieb5e89ed2005-09-25 14:28:13 +1000402 * client any other way.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 */
404#define MGA_PARAM_IRQ_NR 1
405
Dave Airlie6795c982005-07-10 18:20:09 +1000406/* 3.2: Query the actual card type. The DDX only distinguishes between
407 * G200 chips and non-G200 chips, which it calls G400. It turns out that
408 * there are some very sublte differences between the G4x0 chips and the G550
409 * chips. Using this parameter query, a client-side driver can detect the
410 * difference between a G4x0 and a G550.
411 */
412#define MGA_PARAM_CARD_TYPE 2
413
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414typedef struct drm_mga_getparam {
415 int param;
416 void __user *value;
417} drm_mga_getparam_t;
418
419#endif