1 /* 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
4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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:
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
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.
28 * Jeff Hartmann <jhartmann@valinux.com>
29 * Keith Whitwell <keith@tungstengraphics.com>
32 * Gareth Hughes <gareth@valinux.com>
38 /* WARNING: If you change any of these defines, make sure to change the
39 * defines in the Xserver file (mga_sarea.h)
42 #ifndef __MGA_SAREA_DEFINES__
43 #define __MGA_SAREA_DEFINES__
47 #define MGA_F 0x1 /* fog */
48 #define MGA_A 0x2 /* alpha */
49 #define MGA_S 0x4 /* specular */
50 #define MGA_T2 0x8 /* multitexture */
52 #define MGA_WARP_TGZ 0
53 #define MGA_WARP_TGZF (MGA_F)
54 #define MGA_WARP_TGZA (MGA_A)
55 #define MGA_WARP_TGZAF (MGA_F|MGA_A)
56 #define MGA_WARP_TGZS (MGA_S)
57 #define MGA_WARP_TGZSF (MGA_S|MGA_F)
58 #define MGA_WARP_TGZSA (MGA_S|MGA_A)
59 #define MGA_WARP_TGZSAF (MGA_S|MGA_F|MGA_A)
60 #define MGA_WARP_T2GZ (MGA_T2)
61 #define MGA_WARP_T2GZF (MGA_T2|MGA_F)
62 #define MGA_WARP_T2GZA (MGA_T2|MGA_A)
63 #define MGA_WARP_T2GZAF (MGA_T2|MGA_A|MGA_F)
64 #define MGA_WARP_T2GZS (MGA_T2|MGA_S)
65 #define MGA_WARP_T2GZSF (MGA_T2|MGA_S|MGA_F)
66 #define MGA_WARP_T2GZSA (MGA_T2|MGA_S|MGA_A)
67 #define MGA_WARP_T2GZSAF (MGA_T2|MGA_S|MGA_F|MGA_A)
69 #define MGA_MAX_G200_PIPES 8 /* no multitex */
70 #define MGA_MAX_G400_PIPES 16
71 #define MGA_MAX_WARP_PIPES MGA_MAX_G400_PIPES
72 #define MGA_WARP_UCODE_SIZE 32768 /* in bytes */
74 #define MGA_CARD_TYPE_G200 1
75 #define MGA_CARD_TYPE_G400 2
76 #define MGA_CARD_TYPE_G450 3 /* not currently used */
77 #define MGA_CARD_TYPE_G550 4
83 /* What needs to be changed for the current vertex dma buffer?
85 #define MGA_UPLOAD_CONTEXT 0x1
86 #define MGA_UPLOAD_TEX0 0x2
87 #define MGA_UPLOAD_TEX1 0x4
88 #define MGA_UPLOAD_PIPE 0x8
89 #define MGA_UPLOAD_TEX0IMAGE 0x10 /* handled client-side */
90 #define MGA_UPLOAD_TEX1IMAGE 0x20 /* handled client-side */
91 #define MGA_UPLOAD_2D 0x40
92 #define MGA_WAIT_AGE 0x80 /* handled client-side */
93 #define MGA_UPLOAD_CLIPRECTS 0x100 /* handled client-side */
95 #define MGA_DMA_FLUSH 0x200 /* set when someone gets the lock
99 /* 32 buffers of 64k each, total 2 meg.
101 #define MGA_BUFFER_SIZE (1 << 16)
102 #define MGA_NUM_BUFFERS 128
104 /* Keep these small for testing.
106 #define MGA_NR_SAREA_CLIPRECTS 8
108 /* 2 heaps (1 for card, 1 for agp), each divided into upto 128
109 * regions, subject to a minimum region size of (1<<16) == 64k.
111 * Clients may subdivide regions internally, but when sharing between
112 * clients, the region size is the minimum granularity.
115 #define MGA_CARD_HEAP 0
116 #define MGA_AGP_HEAP 1
117 #define MGA_NR_TEX_HEAPS 2
118 #define MGA_NR_TEX_REGIONS 16
119 #define MGA_LOG_MIN_TEX_REGION_SIZE 16
121 #define DRM_MGA_IDLE_RETRY 2048
123 #endif /* __MGA_SAREA_DEFINES__ */
126 /* Setup registers for 3D context
130 unsigned int maccess;
133 unsigned int alphactrl;
134 unsigned int fogcolor;
136 unsigned int tdualstage0;
137 unsigned int tdualstage1;
139 unsigned int stencil;
140 unsigned int stencilctl;
141 } drm_mga_context_regs_t;
143 /* Setup registers for 2D, X server
147 } drm_mga_server_regs_t;
149 /* Setup registers for each texture unit
153 unsigned int texctl2;
154 unsigned int texfilter;
155 unsigned int texbordercol;
157 unsigned int texwidth;
158 unsigned int texheight;
159 unsigned int texorg1;
160 unsigned int texorg2;
161 unsigned int texorg3;
162 unsigned int texorg4;
163 } drm_mga_texture_regs_t;
165 /* General aging mechanism
168 unsigned int head; /* Position of head pointer */
169 unsigned int wrap; /* Primary DMA wrap count */
172 typedef struct _drm_mga_sarea {
173 /* The channel for communication of state information to the kernel
174 * on firing a vertex dma buffer.
176 drm_mga_context_regs_t context_state;
177 drm_mga_server_regs_t server_state;
178 drm_mga_texture_regs_t tex_state[2];
179 unsigned int warp_pipe;
181 unsigned int vertsize;
183 /* The current cliprects, or a subset thereof.
185 drm_clip_rect_t boxes[MGA_NR_SAREA_CLIPRECTS];
188 /* Information about the most recently used 3d drawable. The
189 * client fills in the req_* fields, the server fills in the
190 * exported_ fields and puts the cliprects into boxes, above.
192 * The client clears the exported_drawable field before
193 * clobbering the boxes data.
195 unsigned int req_drawable; /* the X drawable id */
196 unsigned int req_draw_buffer; /* MGA_FRONT or MGA_BACK */
198 unsigned int exported_drawable;
199 unsigned int exported_index;
200 unsigned int exported_stamp;
201 unsigned int exported_buffers;
202 unsigned int exported_nfront;
203 unsigned int exported_nback;
204 int exported_back_x, exported_front_x, exported_w;
205 int exported_back_y, exported_front_y, exported_h;
206 drm_clip_rect_t exported_boxes[MGA_NR_SAREA_CLIPRECTS];
208 /* Counters for aging textures and for client-side throttling.
210 unsigned int status[4];
211 unsigned int last_wrap;
213 drm_mga_age_t last_frame;
214 unsigned int last_enqueue; /* last time a buffer was enqueued */
215 unsigned int last_dispatch; /* age of the most recently dispatched buffer */
216 unsigned int last_quiescent; /* */
218 /* LRU lists for texture memory in agp space and on the card.
220 drm_tex_region_t texList[MGA_NR_TEX_HEAPS][MGA_NR_TEX_REGIONS+1];
221 unsigned int texAge[MGA_NR_TEX_HEAPS];
223 /* Mechanism to validate card state.
229 /* MGA specific ioctls
230 * The device specific ioctl range is 0x40 to 0x79.
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
244 * ioctls for operating on fences.
246 #define DRM_MGA_SET_FENCE 0x0a
247 #define DRM_MGA_WAIT_FENCE 0x0b
248 #define DRM_MGA_DMA_BOOTSTRAP 0x0c
251 #define DRM_IOCTL_MGA_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_INIT, drm_mga_init_t)
252 #define DRM_IOCTL_MGA_FLUSH DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_FLUSH, drm_lock_t)
253 #define DRM_IOCTL_MGA_RESET DRM_IO( DRM_COMMAND_BASE + DRM_MGA_RESET)
254 #define DRM_IOCTL_MGA_SWAP DRM_IO( DRM_COMMAND_BASE + DRM_MGA_SWAP)
255 #define DRM_IOCTL_MGA_CLEAR DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_CLEAR, drm_mga_clear_t)
256 #define DRM_IOCTL_MGA_VERTEX DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_VERTEX, drm_mga_vertex_t)
257 #define DRM_IOCTL_MGA_INDICES DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_INDICES, drm_mga_indices_t)
258 #define DRM_IOCTL_MGA_ILOAD DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_ILOAD, drm_mga_iload_t)
259 #define DRM_IOCTL_MGA_BLIT DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_BLIT, drm_mga_blit_t)
260 #define DRM_IOCTL_MGA_GETPARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_MGA_GETPARAM, drm_mga_getparam_t)
261 #define DRM_IOCTL_MGA_SET_FENCE DRM_IOW( DRM_COMMAND_BASE + DRM_MGA_SET_FENCE, uint32_t)
262 #define DRM_IOCTL_MGA_WAIT_FENCE DRM_IOWR(DRM_COMMAND_BASE + DRM_MGA_WAIT_FENCE, uint32_t)
263 #define DRM_IOCTL_MGA_DMA_BOOTSTRAP DRM_IOWR(DRM_COMMAND_BASE + DRM_MGA_DMA_BOOTSTRAP, drm_mga_dma_bootstrap_t)
265 typedef struct _drm_mga_warp_index {
267 unsigned long phys_addr;
269 } drm_mga_warp_index_t;
271 typedef struct drm_mga_init {
274 MGA_CLEANUP_DMA = 0x02
277 unsigned long sarea_priv_offset;
282 unsigned int maccess;
285 unsigned int front_offset, front_pitch;
286 unsigned int back_offset, back_pitch;
288 unsigned int depth_cpp;
289 unsigned int depth_offset, depth_pitch;
291 unsigned int texture_offset[MGA_NR_TEX_HEAPS];
292 unsigned int texture_size[MGA_NR_TEX_HEAPS];
294 unsigned long fb_offset;
295 unsigned long mmio_offset;
296 unsigned long status_offset;
297 unsigned long warp_offset;
298 unsigned long primary_offset;
299 unsigned long buffers_offset;
302 typedef struct drm_mga_dma_bootstrap {
304 * \name AGP texture region
306 * On return from the DRM_MGA_DMA_BOOTSTRAP ioctl, these fields will
307 * be filled in with the actual AGP texture settings.
310 * If these fields are non-zero, but dma_mga_dma_bootstrap::agp_mode
311 * is zero, it means that PCI memory (most likely through the use of
312 * an IOMMU) is being used for "AGP" textures.
315 unsigned long texture_handle; /**< Handle used to map AGP textures. */
316 uint32_t texture_size; /**< Size of the AGP texture region. */
321 * Requested size of the primary DMA region.
323 * On return from the DRM_MGA_DMA_BOOTSTRAP ioctl, this field will be
324 * filled in with the actual AGP mode. If AGP was not available
326 uint32_t primary_size;
330 * Requested number of secondary DMA buffers.
332 * On return from the DRM_MGA_DMA_BOOTSTRAP ioctl, this field will be
333 * filled in with the actual number of secondary DMA buffers
334 * allocated. Particularly when PCI DMA is used, this may be
335 * (subtantially) less than the number requested.
337 uint32_t secondary_bin_count;
341 * Requested size of each secondary DMA buffer.
343 * While the kernel \b is free to reduce
344 * dma_mga_dma_bootstrap::secondary_bin_count, it is \b not allowed
345 * to reduce dma_mga_dma_bootstrap::secondary_bin_size.
347 uint32_t secondary_bin_size;
351 * Bit-wise mask of AGPSTAT2_* values. Currently only \c AGPSTAT2_1X,
352 * \c AGPSTAT2_2X, and \c AGPSTAT2_4X are supported. If this value is
353 * zero, it means that PCI DMA should be used, even if AGP is
356 * On return from the DRM_MGA_DMA_BOOTSTRAP ioctl, this field will be
357 * filled in with the actual AGP mode. If AGP was not available
358 * (i.e., PCI DMA was used), this value will be zero.
364 * Desired AGP GART size, measured in megabytes.
367 } drm_mga_dma_bootstrap_t;
369 typedef struct drm_mga_clear {
371 unsigned int clear_color;
372 unsigned int clear_depth;
373 unsigned int color_mask;
374 unsigned int depth_mask;
377 typedef struct drm_mga_vertex {
378 int idx; /* buffer to queue */
379 int used; /* bytes in use */
380 int discard; /* client finished with buffer? */
383 typedef struct drm_mga_indices {
384 int idx; /* buffer to queue */
387 int discard; /* client finished with buffer? */
390 typedef struct drm_mga_iload {
396 typedef struct _drm_mga_blit {
397 unsigned int planemask;
400 int src_pitch, dst_pitch;
401 int delta_sx, delta_sy;
402 int delta_dx, delta_dy;
403 int height, ydir; /* flip image vertically */
404 int source_pitch, dest_pitch;
407 /* 3.1: An ioctl to get parameters that aren't available to the 3d
408 * client any other way.
410 #define MGA_PARAM_IRQ_NR 1
412 /* 3.2: Query the actual card type. The DDX only distinguishes between
413 * G200 chips and non-G200 chips, which it calls G400. It turns out that
414 * there are some very sublte differences between the G4x0 chips and the G550
415 * chips. Using this parameter query, a client-side driver can detect the
416 * difference between a G4x0 and a G550.
418 #define MGA_PARAM_CARD_TYPE 2
420 typedef struct drm_mga_getparam {
423 } drm_mga_getparam_t;