kgem_debug_gen2.c revision 03b705cf
1/*
2 * Copyright © 2007-2011 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors:
24 *    Eric Anholt <eric@anholt.net>
25 *    Chris Wilson <chris@chris-wilson.co.uk>
26 *
27 */
28
29#ifdef HAVE_CONFIG_H
30#include "config.h"
31#endif
32
33#include <sys/mman.h>
34#include <assert.h>
35
36#include "sna.h"
37#include "sna_reg.h"
38
39#include "gen2_render.h"
40
41#include "kgem_debug.h"
42
43static struct state {
44	int vertex_format;
45} state;
46
47static inline float int_as_float(uint32_t dw)
48{
49	union {
50		float f;
51		uint32_t dw;
52	} u;
53	u.dw = dw;
54	return u.f;
55}
56
57static int
58decode_3d_primitive(struct kgem *kgem, uint32_t offset)
59{
60    uint32_t *data = kgem->batch + offset;
61    char immediate = (data[0] & (1 << 23)) == 0;
62    unsigned int len;
63    const char *primtype;
64
65    switch ((data[0] >> 18) & 0xf) {
66    case 0x0: primtype = "TRILIST"; break;
67    case 0x1: primtype = "TRISTRIP"; break;
68    case 0x2: primtype = "TRISTRIP_REVERSE"; break;
69    case 0x3: primtype = "TRIFAN"; break;
70    case 0x4: primtype = "POLYGON"; break;
71    case 0x5: primtype = "LINELIST"; break;
72    case 0x6: primtype = "LINESTRIP"; break;
73    case 0x7: primtype = "RECTLIST"; break;
74    case 0x8: primtype = "POINTLIST"; break;
75    case 0x9: primtype = "DIB"; break;
76    case 0xa: primtype = "CLEAR_RECT"; break;
77    default: primtype = "unknown"; break;
78    }
79
80    /* XXX: 3DPRIM_DIB not supported */
81    if (immediate) {
82	len = (data[0] & 0x0003ffff) + 2;
83	kgem_debug_print(data, offset, 0, "3DPRIMITIVE inline %s\n", primtype);
84#if 0
85	if (!saved_s2_set || !saved_s4_set) {
86	    fprintf(out, "unknown vertex format\n");
87	    for (i = 1; i < len; i++) {
88		kgem_debug_print(data, offset, i,
89			  "           vertex data (%f float)\n",
90			  int_as_float(data[i]));
91	    }
92	} else {
93	    unsigned int vertex = 0;
94	    for (i = 1; i < len;) {
95		unsigned int tc;
96
97#define VERTEX_OUT(fmt, ...) do {					\
98    if (i < len)							\
99	kgem_debug_print(data, offset, i, " V%d."fmt"\n", vertex, __VA_ARGS__); \
100    else								\
101	fprintf(out, " missing data in V%d\n", vertex);			\
102    i++;								\
103} while (0)
104
105		VERTEX_OUT("X = %f", int_as_float(data[i]));
106		VERTEX_OUT("Y = %f", int_as_float(data[i]));
107	        switch (saved_s4 >> 6 & 0x7) {
108		case 0x1:
109		    VERTEX_OUT("Z = %f", int_as_float(data[i]));
110		    break;
111		case 0x2:
112		    VERTEX_OUT("Z = %f", int_as_float(data[i]));
113		    VERTEX_OUT("W = %f", int_as_float(data[i]));
114		    break;
115		case 0x3:
116		    break;
117		case 0x4:
118		    VERTEX_OUT("W = %f", int_as_float(data[i]));
119		    break;
120		default:
121		    fprintf(out, "bad S4 position mask\n");
122		}
123
124		if (saved_s4 & (1 << 10)) {
125		    VERTEX_OUT("color = (A=0x%02x, R=0x%02x, G=0x%02x, "
126			       "B=0x%02x)",
127			       data[i] >> 24,
128			       (data[i] >> 16) & 0xff,
129			       (data[i] >> 8) & 0xff,
130			       data[i] & 0xff);
131		}
132		if (saved_s4 & (1 << 11)) {
133		    VERTEX_OUT("spec = (A=0x%02x, R=0x%02x, G=0x%02x, "
134			       "B=0x%02x)",
135			       data[i] >> 24,
136			       (data[i] >> 16) & 0xff,
137			       (data[i] >> 8) & 0xff,
138			       data[i] & 0xff);
139		}
140		if (saved_s4 & (1 << 12))
141		    VERTEX_OUT("width = 0x%08x)", data[i]);
142
143		for (tc = 0; tc <= 7; tc++) {
144		    switch ((saved_s2 >> (tc * 4)) & 0xf) {
145		    case 0x0:
146			VERTEX_OUT("T%d.X = %f", tc, int_as_float(data[i]));
147			VERTEX_OUT("T%d.Y = %f", tc, int_as_float(data[i]));
148			break;
149		    case 0x1:
150			VERTEX_OUT("T%d.X = %f", tc, int_as_float(data[i]));
151			VERTEX_OUT("T%d.Y = %f", tc, int_as_float(data[i]));
152			VERTEX_OUT("T%d.Z = %f", tc, int_as_float(data[i]));
153			break;
154		    case 0x2:
155			VERTEX_OUT("T%d.X = %f", tc, int_as_float(data[i]));
156			VERTEX_OUT("T%d.Y = %f", tc, int_as_float(data[i]));
157			VERTEX_OUT("T%d.Z = %f", tc, int_as_float(data[i]));
158			VERTEX_OUT("T%d.W = %f", tc, int_as_float(data[i]));
159			break;
160		    case 0x3:
161			VERTEX_OUT("T%d.X = %f", tc, int_as_float(data[i]));
162			break;
163		    case 0x4:
164			VERTEX_OUT("T%d.XY = 0x%08x half-float", tc, data[i]);
165			break;
166		    case 0x5:
167			VERTEX_OUT("T%d.XY = 0x%08x half-float", tc, data[i]);
168			VERTEX_OUT("T%d.ZW = 0x%08x half-float", tc, data[i]);
169			break;
170		    case 0xf:
171			break;
172		    default:
173			fprintf(out, "bad S2.T%d format\n", tc);
174		    }
175		}
176		vertex++;
177	    }
178	}
179#endif
180    } else {
181	/* indirect vertices */
182	len = data[0] & 0x0000ffff; /* index count */
183#if 0
184	if (data[0] & (1 << 17)) {
185	    /* random vertex access */
186	    kgem_debug_print(data, offset, 0,
187		      "3DPRIMITIVE random indirect %s (%d)\n", primtype, len);
188	    if (len == 0) {
189		/* vertex indices continue until 0xffff is found */
190		for (i = 1; i < count; i++) {
191		    if ((data[i] & 0xffff) == 0xffff) {
192			kgem_debug_print(data, offset, i,
193				  "    indices: (terminator)\n");
194			ret = i;
195			goto out;
196		    } else if ((data[i] >> 16) == 0xffff) {
197			kgem_debug_print(data, offset, i,
198				  "    indices: 0x%04x, (terminator)\n",
199				  data[i] & 0xffff);
200			ret = i;
201			goto out;
202		    } else {
203			kgem_debug_print(data, offset, i,
204				  "    indices: 0x%04x, 0x%04x\n",
205				  data[i] & 0xffff, data[i] >> 16);
206		    }
207		}
208		fprintf(out,
209			"3DPRIMITIVE: no terminator found in index buffer\n");
210		ret = count;
211		goto out;
212	    } else {
213		/* fixed size vertex index buffer */
214		for (j = 1, i = 0; i < len; i += 2, j++) {
215		    if (i * 2 == len - 1) {
216			kgem_debug_print(data, offset, j,
217				  "    indices: 0x%04x\n",
218				  data[j] & 0xffff);
219		    } else {
220			kgem_debug_print(data, offset, j,
221				  "    indices: 0x%04x, 0x%04x\n",
222				  data[j] & 0xffff, data[j] >> 16);
223		    }
224		}
225	    }
226	    ret = (len + 1) / 2 + 1;
227	    goto out;
228	} else {
229	    /* sequential vertex access */
230	    kgem_debug_print(data, offset, 0,
231		      "3DPRIMITIVE sequential indirect %s, %d starting from "
232		      "%d\n", primtype, len, data[1] & 0xffff);
233	    kgem_debug_print(data, offset, 1, "           start\n");
234	    ret = 2;
235	    goto out;
236	}
237#endif
238    }
239
240    return len;
241}
242
243static int
244decode_3d_1d(struct kgem *kgem, uint32_t offset)
245{
246    uint32_t *data = kgem->batch + offset;
247    unsigned int len, i, idx, word, map;
248    const char *format, *zformat, *type;
249    uint32_t opcode;
250
251    static const struct {
252	uint32_t opcode;
253	int min_len;
254	int max_len;
255	const char *name;
256    } opcodes_3d_1d[] = {
257	{ 0x86, 4, 4, "3DSTATE_CHROMA_KEY" },
258	{ 0x88, 2, 2, "3DSTATE_CONSTANT_BLEND_COLOR" },
259	{ 0x99, 2, 2, "3DSTATE_DEFAULT_DIFFUSE" },
260	{ 0x9a, 2, 2, "3DSTATE_DEFAULT_SPECULAR" },
261	{ 0x98, 2, 2, "3DSTATE_DEFAULT_Z" },
262	{ 0x97, 2, 2, "3DSTATE_DEPTH_OFFSET_SCALE" },
263	{ 0x9d, 65, 65, "3DSTATE_FILTER_COEFFICIENTS_4X4" },
264	{ 0x9e, 4, 4, "3DSTATE_MONO_FILTER" },
265	{ 0x89, 4, 4, "3DSTATE_FOG_MODE" },
266	{ 0x8f, 2, 16, "3DSTATE_MAP_PALLETE_LOAD_32" },
267	{ 0x83, 2, 2, "3DSTATE_SPAN_STIPPLE" },
268	{ 0x8c, 2, 2, "3DSTATE_MAP_COORD_TRANSFORM" },
269	{ 0x8b, 2, 2, "3DSTATE_MAP_VERTEX_TRANSFORM" },
270	{ 0x8d, 3, 3, "3DSTATE_W_STATE" },
271	{ 0x01, 2, 2, "3DSTATE_COLOR_FACTOR" },
272	{ 0x02, 2, 2, "3DSTATE_MAP_COORD_SETBIND" },
273    }, *opcode_3d_1d;
274
275    opcode = (data[0] & 0x00ff0000) >> 16;
276
277    switch (opcode) {
278    case 0x07:
279	/* This instruction is unusual.  A 0 length means just 1 DWORD instead of
280	 * 2.  The 0 length is specified in one place to be unsupported, but
281	 * stated to be required in another, and 0 length LOAD_INDIRECTs appear
282	 * to cause no harm at least.
283	 */
284	kgem_debug_print(data, offset, 0, "3DSTATE_LOAD_INDIRECT\n");
285	len = (data[0] & 0x000000ff) + 1;
286	i = 1;
287	if (data[0] & (0x01 << 8)) {
288	    kgem_debug_print(data, offset, i++, "SIS.0\n");
289	    kgem_debug_print(data, offset, i++, "SIS.1\n");
290	}
291	if (data[0] & (0x02 << 8)) {
292	    kgem_debug_print(data, offset, i++, "DIS.0\n");
293	}
294	if (data[0] & (0x04 << 8)) {
295	    kgem_debug_print(data, offset, i++, "SSB.0\n");
296	    kgem_debug_print(data, offset, i++, "SSB.1\n");
297	}
298	if (data[0] & (0x08 << 8)) {
299	    kgem_debug_print(data, offset, i++, "MSB.0\n");
300	    kgem_debug_print(data, offset, i++, "MSB.1\n");
301	}
302	if (data[0] & (0x10 << 8)) {
303	    kgem_debug_print(data, offset, i++, "PSP.0\n");
304	    kgem_debug_print(data, offset, i++, "PSP.1\n");
305	}
306	if (data[0] & (0x20 << 8)) {
307	    kgem_debug_print(data, offset, i++, "PSC.0\n");
308	    kgem_debug_print(data, offset, i++, "PSC.1\n");
309	}
310	assert(len == i);
311	return len;
312    case 0x04:
313	kgem_debug_print(data, offset, 0, "3DSTATE_LOAD_STATE_IMMEDIATE_1\n");
314	len = (data[0] & 0x0000000f) + 2;
315	i = 1;
316	for (word = 0; word <= 8; word++) {
317	    if (data[0] & (1 << (4 + word))) {
318		kgem_debug_print(data, offset, i, "S%d: 0x%08x\n", i, data[i]);
319		i++;
320	    }
321	}
322	assert (len ==i);
323	return len;
324    case 0x03:
325	kgem_debug_print(data, offset, 0, "3DSTATE_LOAD_STATE_IMMEDIATE_2\n");
326	len = (data[0] & 0x0000000f) + 2;
327	i = 1;
328	for (word = 6; word <= 14; word++) {
329	    if (data[0] & (1 << word)) {
330		if (word == 6)
331		    kgem_debug_print(data, offset, i++, "TBCF\n");
332		else if (word >= 7 && word <= 10) {
333		    kgem_debug_print(data, offset, i++, "TB%dC\n", word - 7);
334		    kgem_debug_print(data, offset, i++, "TB%dA\n", word - 7);
335		} else if (word >= 11 && word <= 14) {
336		    kgem_debug_print(data, offset, i, "TM%dS0: offset=0x%08x, %s\n",
337			      word - 11,
338			      data[i]&0xfffffffe,
339			      data[i]&1?"use fence":"");
340		    i++;
341		    kgem_debug_print(data, offset, i, "TM%dS1: height=%i, width=%i, %s\n",
342			      word - 11,
343			      data[i]>>21, (data[i]>>10)&0x3ff,
344			      data[i]&2?(data[i]&1?"y-tiled":"x-tiled"):"");
345		    i++;
346		    kgem_debug_print(data, offset, i, "TM%dS2: pitch=%i, \n",
347			      word - 11,
348			      ((data[i]>>21) + 1)*4);
349		    i++;
350		    kgem_debug_print(data, offset, i++, "TM%dS3\n", word - 11);
351		    kgem_debug_print(data, offset, i++, "TM%dS4: dflt color\n", word - 11);
352		}
353	    }
354	}
355	assert (len == i);
356	return len;
357    case 0x00:
358	kgem_debug_print(data, offset, 0, "3DSTATE_MAP_STATE\n");
359	len = (data[0] & 0x0000003f) + 2;
360	kgem_debug_print(data, offset, 1, "mask\n");
361
362	i = 2;
363	for (map = 0; map <= 15; map++) {
364	    if (data[1] & (1 << map)) {
365		int width, height, pitch, dword;
366		const char *tiling;
367
368		dword = data[i];
369		kgem_debug_print(data, offset, i++, "map %d MS2 %s%s%s\n", map,
370			  dword&(1<<31)?"untrusted surface, ":"",
371			  dword&(1<<1)?"vertical line stride enable, ":"",
372			  dword&(1<<0)?"vertical ofs enable, ":"");
373
374		dword = data[i];
375		width = ((dword >> 10) & ((1 << 11) - 1))+1;
376		height = ((dword >> 21) & ((1 << 11) - 1))+1;
377
378		tiling = "none";
379		if (dword & (1 << 2))
380			tiling = "fenced";
381		else if (dword & (1 << 1))
382			tiling = dword & (1 << 0) ? "Y" : "X";
383		type = " BAD";
384		format = "BAD";
385		switch ((dword>>7) & 0x7) {
386		case 1:
387		    type = "8b";
388		    switch ((dword>>3) & 0xf) {
389		    case 0: format = "I"; break;
390		    case 1: format = "L"; break;
391		    case 2: format = "A"; break;
392		    case 3: format = " mono"; break; }
393		    break;
394		case 2:
395		    type = "16b";
396		    switch ((dword>>3) & 0xf) {
397		    case 0: format = " rgb565"; break;
398		    case 1: format = " argb1555"; break;
399		    case 2: format = " argb4444"; break;
400		    case 5: format = " ay88"; break;
401		    case 6: format = " bump655"; break;
402		    case 7: format = "I"; break;
403		    case 8: format = "L"; break;
404		    case 9: format = "A"; break; }
405		    break;
406		case 3:
407		    type = "32b";
408		    switch ((dword>>3) & 0xf) {
409		    case 0: format = " argb8888"; break;
410		    case 1: format = " abgr8888"; break;
411		    case 2: format = " xrgb8888"; break;
412		    case 3: format = " xbgr8888"; break;
413		    case 4: format = " qwvu8888"; break;
414		    case 5: format = " axvu8888"; break;
415		    case 6: format = " lxvu8888"; break;
416		    case 7: format = " xlvu8888"; break;
417		    case 8: format = " argb2101010"; break;
418		    case 9: format = " abgr2101010"; break;
419		    case 10: format = " awvu2101010"; break;
420		    case 11: format = " gr1616"; break;
421		    case 12: format = " vu1616"; break;
422		    case 13: format = " xI824"; break;
423		    case 14: format = " xA824"; break;
424		    case 15: format = " xL824"; break; }
425		    break;
426		case 5:
427		    type = "422";
428		    switch ((dword>>3) & 0xf) {
429		    case 0: format = " yuv_swapy"; break;
430		    case 1: format = " yuv"; break;
431		    case 2: format = " yuv_swapuv"; break;
432		    case 3: format = " yuv_swapuvy"; break; }
433		    break;
434		case 6:
435		    type = "compressed";
436		    switch ((dword>>3) & 0x7) {
437		    case 0: format = " dxt1"; break;
438		    case 1: format = " dxt2_3"; break;
439		    case 2: format = " dxt4_5"; break;
440		    case 3: format = " fxt1"; break;
441		    case 4: format = " dxt1_rb"; break; }
442		    break;
443		case 7:
444		    type = "4b indexed";
445		    switch ((dword>>3) & 0xf) {
446		    case 7: format = " argb8888"; break; }
447		    break;
448		}
449		dword = data[i];
450		kgem_debug_print(data, offset, i++, "map %d MS3 [width=%d, height=%d, format=%s%s, tiling=%s%s]\n",
451			  map, width, height, type, format, tiling,
452			  dword&(1<<9)?" palette select":"");
453
454		dword = data[i];
455		pitch = 4*(((dword >> 21) & ((1 << 11) - 1))+1);
456		kgem_debug_print(data, offset, i++, "map %d MS4 [pitch=%d, max_lod=%i, vol_depth=%i, cube_face_ena=%x, %s]\n",
457			  map, pitch,
458			  (dword>>9)&0x3f, dword&0xff, (dword>>15)&0x3f,
459			  dword&(1<<8)?"miplayout legacy":"miplayout right");
460	    }
461	}
462	assert (len == i);
463	return len;
464    case 0x85:
465	len = (data[0] & 0x0000000f) + 2;
466	assert (len == 2);
467	kgem_debug_print(data, offset, 0,
468		  "3DSTATE_DEST_BUFFER_VARIABLES\n");
469
470	switch ((data[1] >> 8) & 0xf) {
471	case 0x0: format = "g8"; break;
472	case 0x1: format = "x1r5g5b5"; break;
473	case 0x2: format = "r5g6b5"; break;
474	case 0x3: format = "a8r8g8b8"; break;
475	case 0x4: format = "ycrcb_swapy"; break;
476	case 0x5: format = "ycrcb_normal"; break;
477	case 0x6: format = "ycrcb_swapuv"; break;
478	case 0x7: format = "ycrcb_swapuvy"; break;
479	case 0x8: format = "a4r4g4b4"; break;
480	case 0x9: format = "a1r5g5b5"; break;
481	case 0xa: format = "a2r10g10b10"; break;
482	default: format = "BAD"; break;
483	}
484	switch ((data[1] >> 2) & 0x3) {
485	case 0x0: zformat = "u16"; break;
486	case 0x1: zformat = "f16"; break;
487	case 0x2: zformat = "u24x8"; break;
488	default: zformat = "BAD"; break;
489	}
490	kgem_debug_print(data, offset, 1, "%s format, %s depth format, early Z %sabled\n",
491		  format, zformat,
492		  (data[1] & (1 << 31)) ? "en" : "dis");
493	return len;
494
495    case 0x8e:
496	{
497	    const char *name, *tiling;
498
499	    len = (data[0] & 0x0000000f) + 2;
500	    assert (len == 3);
501
502	    switch((data[1] >> 24) & 0x7) {
503	    case 0x3: name = "color"; break;
504	    case 0x7: name = "depth"; break;
505	    default: name = "unknown"; break;
506	    }
507
508	    tiling = "none";
509	    if (data[1] & (1 << 23))
510		tiling = "fenced";
511	    else if (data[1] & (1 << 22))
512		tiling = data[1] & (1 << 21) ? "Y" : "X";
513
514	    kgem_debug_print(data, offset, 0, "3DSTATE_BUFFER_INFO\n");
515	    kgem_debug_print(data, offset, 1, "%s, tiling = %s, pitch=%d\n", name, tiling, data[1]&0xffff);
516
517	    kgem_debug_print(data, offset, 2, "address\n");
518	    return len;
519	}
520
521    case 0x81:
522	len = (data[0] & 0x0000000f) + 2;
523	assert (len == 3);
524
525	kgem_debug_print(data, offset, 0,
526		  "3DSTATE_SCISSOR_RECTANGLE\n");
527	kgem_debug_print(data, offset, 1, "(%d,%d)\n",
528		  data[1] & 0xffff, data[1] >> 16);
529	kgem_debug_print(data, offset, 2, "(%d,%d)\n",
530		  data[2] & 0xffff, data[2] >> 16);
531	return len;
532
533    case 0x80:
534	len = (data[0] & 0x0000000f) + 2;
535	assert (len == 5);
536
537	kgem_debug_print(data, offset, 0,
538		  "3DSTATE_DRAWING_RECTANGLE\n");
539	kgem_debug_print(data, offset, 1, "%s\n",
540		  data[1]&(1<<30)?"depth ofs disabled ":"");
541	kgem_debug_print(data, offset, 2, "(%d,%d)\n",
542		  data[2] & 0xffff, data[2] >> 16);
543	kgem_debug_print(data, offset, 3, "(%d,%d)\n",
544		  data[3] & 0xffff, data[3] >> 16);
545	kgem_debug_print(data, offset, 4, "(%d,%d)\n",
546		  data[4] & 0xffff, data[4] >> 16);
547	return len;
548
549    case 0x9c:
550	len = (data[0] & 0x0000000f) + 2;
551	assert (len == 7);
552
553	kgem_debug_print(data, offset, 0,
554		  "3DSTATE_CLEAR_PARAMETERS\n");
555	kgem_debug_print(data, offset, 1, "prim_type=%s, clear=%s%s%s\n",
556		  data[1]&(1<<16)?"CLEAR_RECT":"ZONE_INIT",
557		  data[1]&(1<<2)?"color,":"",
558		  data[1]&(1<<1)?"depth,":"",
559		  data[1]&(1<<0)?"stencil,":"");
560	kgem_debug_print(data, offset, 2, "clear color\n");
561	kgem_debug_print(data, offset, 3, "clear depth/stencil\n");
562	kgem_debug_print(data, offset, 4, "color value (rgba8888)\n");
563	kgem_debug_print(data, offset, 5, "depth value %f\n",
564		  int_as_float(data[5]));
565	kgem_debug_print(data, offset, 6, "clear stencil\n");
566	return len;
567    }
568
569    for (idx = 0; idx < ARRAY_SIZE(opcodes_3d_1d); idx++) {
570	opcode_3d_1d = &opcodes_3d_1d[idx];
571	if (((data[0] & 0x00ff0000) >> 16) == opcode_3d_1d->opcode) {
572	    len = 1;
573
574	    kgem_debug_print(data, offset, 0, "%s\n", opcode_3d_1d->name);
575	    if (opcode_3d_1d->max_len > 1) {
576		len = (data[0] & 0x0000ffff) + 2;
577		assert (len >= opcode_3d_1d->min_len &&
578			len <= opcode_3d_1d->max_len);
579	    }
580
581	    for (i = 1; i < len; i++)
582		kgem_debug_print(data, offset, i, "dword %d\n", i);
583
584	    return len;
585	}
586    }
587
588    kgem_debug_print(data, offset, 0, "3D UNKNOWN: 3d_1d opcode = 0x%x\n", opcode);
589    return 1;
590}
591
592static int
593decode_3d_1c(struct kgem *kgem, uint32_t offset)
594{
595    uint32_t *data = kgem->batch + offset;
596    uint32_t opcode;
597
598    opcode = (data[0] & 0x00f80000) >> 19;
599
600    switch (opcode) {
601    case 0x11:
602	kgem_debug_print(data, offset, 0, "3DSTATE_DEPTH_SUBRECTANGLE_DISABLE\n");
603	return 1;
604    case 0x10:
605	kgem_debug_print(data, offset, 0, "3DSTATE_SCISSOR_ENABLE %s\n",
606		data[0]&1?"enabled":"disabled");
607	return 1;
608    case 0x01:
609	kgem_debug_print(data, offset, 0, "3DSTATE_MAP_COORD_SET_I830\n");
610	return 1;
611    case 0x0a:
612	kgem_debug_print(data, offset, 0, "3DSTATE_MAP_CUBE_I830\n");
613	return 1;
614    case 0x05:
615	kgem_debug_print(data, offset, 0, "3DSTATE_MAP_TEX_STREAM_I830\n");
616	return 1;
617    }
618
619    kgem_debug_print(data, offset, 0, "3D UNKNOWN: 3d_1c opcode = 0x%x\n",
620	      opcode);
621    return 1;
622}
623
624int kgem_gen2_decode_3d(struct kgem *kgem, uint32_t offset)
625{
626    const static struct {
627	uint32_t opcode;
628	int min_len;
629	int max_len;
630	const char *name;
631    } opcodes[] = {
632	{ 0x02, 1, 1, "3DSTATE_MODES_3" },
633	{ 0x03, 1, 1, "3DSTATE_ENABLES_1"},
634	{ 0x04, 1, 1, "3DSTATE_ENABLES_2"},
635	{ 0x05, 1, 1, "3DSTATE_VFT0"},
636	{ 0x06, 1, 1, "3DSTATE_AA"},
637	{ 0x07, 1, 1, "3DSTATE_RASTERIZATION_RULES" },
638	{ 0x08, 1, 1, "3DSTATE_MODES_1" },
639	{ 0x09, 1, 1, "3DSTATE_STENCIL_TEST" },
640	{ 0x0a, 1, 1, "3DSTATE_VFT1"},
641	{ 0x0b, 1, 1, "3DSTATE_INDPT_ALPHA_BLEND" },
642	{ 0x0c, 1, 1, "3DSTATE_MODES_5" },
643	{ 0x0d, 1, 1, "3DSTATE_MAP_BLEND_OP" },
644	{ 0x0e, 1, 1, "3DSTATE_MAP_BLEND_ARG" },
645	{ 0x0f, 1, 1, "3DSTATE_MODES_2" },
646	{ 0x15, 1, 1, "3DSTATE_FOG_COLOR" },
647	{ 0x16, 1, 1, "3DSTATE_MODES_4" },
648    };
649    uint32_t *data = kgem->batch + offset;
650    uint32_t opcode = (data[0] & 0x1f000000) >> 24;
651    uint32_t idx;
652
653    switch (opcode) {
654    case 0x1f:
655	return decode_3d_primitive(kgem, offset);
656    case 0x1d:
657	return decode_3d_1d(kgem, offset);
658    case 0x1c:
659	return decode_3d_1c(kgem, offset);
660    }
661
662    /* Catch the known instructions */
663    for (idx = 0; idx < ARRAY_SIZE(opcodes); idx++) {
664	if (opcode == opcodes[idx].opcode) {
665	    unsigned int len = 1, i;
666
667	    kgem_debug_print(data, offset, 0, "%s\n", opcodes[idx].name);
668	    if (opcodes[idx].max_len > 1) {
669		len = (data[0] & 0xf) + 2;
670		assert(len >= opcodes[idx].min_len &&
671		       len <= opcodes[idx].max_len);
672	    }
673
674	    for (i = 1; i < len; i++)
675		kgem_debug_print(data, offset, i, "dword %d\n", i);
676	    return len;
677	}
678    }
679
680    kgem_debug_print(data, offset, 0, "3D UNKNOWN: 3d opcode = 0x%x\n", opcode);
681    return 1;
682}
683
684void kgem_gen2_finish_state(struct kgem *kgem)
685{
686	memset(&state, 0, sizeof(state));
687}
688