r600_pipe.c revision 3e044bcc4b2fcf9418f5a8fb682c8fab3bc454e9
1/*
2 * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23#include <stdio.h>
24#include <errno.h>
25#include "pipe/p_defines.h"
26#include "pipe/p_state.h"
27#include "pipe/p_context.h"
28#include "tgsi/tgsi_scan.h"
29#include "tgsi/tgsi_parse.h"
30#include "tgsi/tgsi_util.h"
31#include "util/u_blitter.h"
32#include "util/u_double_list.h"
33#include "util/u_format.h"
34#include "util/u_format_s3tc.h"
35#include "util/u_transfer.h"
36#include "util/u_surface.h"
37#include "util/u_pack_color.h"
38#include "util/u_memory.h"
39#include "util/u_inlines.h"
40#include "util/u_upload_mgr.h"
41#include "vl/vl_decoder.h"
42#include "vl/vl_video_buffer.h"
43#include "os/os_time.h"
44#include "pipebuffer/pb_buffer.h"
45#include "r600.h"
46#include "r600d.h"
47#include "r600_resource.h"
48#include "r600_shader.h"
49#include "r600_pipe.h"
50
51/*
52 * pipe_context
53 */
54static struct r600_fence *r600_create_fence(struct r600_pipe_context *ctx)
55{
56	struct r600_screen *rscreen = ctx->screen;
57	struct r600_fence *fence = NULL;
58
59	pipe_mutex_lock(rscreen->fences.mutex);
60
61	if (!rscreen->fences.bo) {
62		/* Create the shared buffer object */
63		rscreen->fences.bo = (struct r600_resource*)
64			pipe_buffer_create(&rscreen->screen, PIPE_BIND_CUSTOM,
65					   PIPE_USAGE_STAGING, 4096);
66		if (!rscreen->fences.bo) {
67			R600_ERR("r600: failed to create bo for fence objects\n");
68			goto out;
69		}
70		rscreen->fences.data = ctx->ws->buffer_map(rscreen->fences.bo->buf,
71							   ctx->ctx.cs,
72							   PIPE_TRANSFER_READ_WRITE);
73	}
74
75	if (!LIST_IS_EMPTY(&rscreen->fences.pool)) {
76		struct r600_fence *entry;
77
78		/* Try to find a freed fence that has been signalled */
79		LIST_FOR_EACH_ENTRY(entry, &rscreen->fences.pool, head) {
80			if (rscreen->fences.data[entry->index] != 0) {
81				LIST_DELINIT(&entry->head);
82				fence = entry;
83				break;
84			}
85		}
86	}
87
88	if (!fence) {
89		/* Allocate a new fence */
90		struct r600_fence_block *block;
91		unsigned index;
92
93		if ((rscreen->fences.next_index + 1) >= 1024) {
94			R600_ERR("r600: too many concurrent fences\n");
95			goto out;
96		}
97
98		index = rscreen->fences.next_index++;
99
100		if (!(index % FENCE_BLOCK_SIZE)) {
101			/* Allocate a new block */
102			block = CALLOC_STRUCT(r600_fence_block);
103			if (block == NULL)
104				goto out;
105
106			LIST_ADD(&block->head, &rscreen->fences.blocks);
107		} else {
108			block = LIST_ENTRY(struct r600_fence_block, rscreen->fences.blocks.next, head);
109		}
110
111		fence = &block->fences[index % FENCE_BLOCK_SIZE];
112		fence->index = index;
113	}
114
115	pipe_reference_init(&fence->reference, 1);
116
117	rscreen->fences.data[fence->index] = 0;
118	r600_context_emit_fence(&ctx->ctx, rscreen->fences.bo, fence->index, 1);
119out:
120	pipe_mutex_unlock(rscreen->fences.mutex);
121	return fence;
122}
123
124
125void r600_flush(struct pipe_context *ctx, struct pipe_fence_handle **fence,
126		unsigned flags)
127{
128	struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
129	struct r600_fence **rfence = (struct r600_fence**)fence;
130	struct pipe_query *render_cond = NULL;
131	unsigned render_cond_mode = 0;
132
133	if (rfence)
134		*rfence = r600_create_fence(rctx);
135
136	/* Disable render condition. */
137	if (rctx->current_render_cond) {
138		render_cond = rctx->current_render_cond;
139		render_cond_mode = rctx->current_render_cond_mode;
140		ctx->render_condition(ctx, NULL, 0);
141	}
142
143	r600_context_flush(&rctx->ctx, flags);
144
145	/* Re-enable render condition. */
146	if (render_cond) {
147		ctx->render_condition(ctx, render_cond, render_cond_mode);
148	}
149}
150
151static void r600_flush_from_st(struct pipe_context *ctx,
152			       struct pipe_fence_handle **fence)
153{
154	r600_flush(ctx, fence, 0);
155}
156
157static void r600_flush_from_winsys(void *ctx, unsigned flags)
158{
159	r600_flush((struct pipe_context*)ctx, NULL, flags);
160}
161
162static void r600_update_num_contexts(struct r600_screen *rscreen, int diff)
163{
164	pipe_mutex_lock(rscreen->mutex_num_contexts);
165	if (diff > 0) {
166		rscreen->num_contexts++;
167
168		if (rscreen->num_contexts > 1)
169			util_slab_set_thread_safety(&rscreen->pool_buffers,
170						    UTIL_SLAB_MULTITHREADED);
171	} else {
172		rscreen->num_contexts--;
173
174		if (rscreen->num_contexts <= 1)
175			util_slab_set_thread_safety(&rscreen->pool_buffers,
176						    UTIL_SLAB_SINGLETHREADED);
177	}
178	pipe_mutex_unlock(rscreen->mutex_num_contexts);
179}
180
181static void r600_destroy_context(struct pipe_context *context)
182{
183	struct r600_pipe_context *rctx = (struct r600_pipe_context *)context;
184
185	rctx->context.delete_depth_stencil_alpha_state(&rctx->context, rctx->custom_dsa_flush);
186	util_unreference_framebuffer_state(&rctx->framebuffer);
187
188	r600_context_fini(&rctx->ctx);
189
190	util_blitter_destroy(rctx->blitter);
191
192	for (int i = 0; i < R600_PIPE_NSTATES; i++) {
193		free(rctx->states[i]);
194	}
195
196	u_vbuf_destroy(rctx->vbuf_mgr);
197	util_slab_destroy(&rctx->pool_transfers);
198
199	r600_update_num_contexts(rctx->screen, -1);
200
201	FREE(rctx);
202}
203
204static struct pipe_context *r600_create_context(struct pipe_screen *screen, void *priv)
205{
206	struct r600_pipe_context *rctx = CALLOC_STRUCT(r600_pipe_context);
207	struct r600_screen* rscreen = (struct r600_screen *)screen;
208
209	if (rctx == NULL)
210		return NULL;
211
212	r600_update_num_contexts(rscreen, 1);
213
214	rctx->context.winsys = rscreen->screen.winsys;
215	rctx->context.screen = screen;
216	rctx->context.priv = priv;
217	rctx->context.destroy = r600_destroy_context;
218	rctx->context.flush = r600_flush_from_st;
219
220	/* Easy accessing of screen/winsys. */
221	rctx->screen = rscreen;
222	rctx->ws = rscreen->ws;
223	rctx->family = rscreen->family;
224	rctx->chip_class = rscreen->chip_class;
225
226	r600_init_blit_functions(rctx);
227	r600_init_query_functions(rctx);
228	r600_init_context_resource_functions(rctx);
229	r600_init_surface_functions(rctx);
230	rctx->context.draw_vbo = r600_draw_vbo;
231
232	rctx->context.create_video_decoder = vl_create_decoder;
233	rctx->context.create_video_buffer = vl_video_buffer_create;
234
235	switch (rctx->chip_class) {
236	case R600:
237	case R700:
238		r600_init_state_functions(rctx);
239		if (r600_context_init(&rctx->ctx, rctx->screen)) {
240			r600_destroy_context(&rctx->context);
241			return NULL;
242		}
243		r600_init_config(rctx);
244		rctx->custom_dsa_flush = r600_create_db_flush_dsa(rctx);
245		break;
246	case EVERGREEN:
247	case CAYMAN:
248		evergreen_init_state_functions(rctx);
249		if (evergreen_context_init(&rctx->ctx, rctx->screen)) {
250			r600_destroy_context(&rctx->context);
251			return NULL;
252		}
253		evergreen_init_config(rctx);
254		rctx->custom_dsa_flush = evergreen_create_db_flush_dsa(rctx);
255		break;
256	default:
257		R600_ERR("Unsupported chip class %d.\n", rctx->chip_class);
258		r600_destroy_context(&rctx->context);
259		return NULL;
260	}
261
262	rctx->ctx.pipe = &rctx->context;
263	rctx->ctx.flush = r600_flush_from_winsys;
264	rctx->ws->cs_set_flush_callback(rctx->ctx.cs, r600_flush_from_winsys, rctx);
265
266	util_slab_create(&rctx->pool_transfers,
267			 sizeof(struct pipe_transfer), 64,
268			 UTIL_SLAB_SINGLETHREADED);
269
270	rctx->vbuf_mgr = u_vbuf_create(&rctx->context, 1024 * 1024, 256,
271					   PIPE_BIND_VERTEX_BUFFER |
272					   PIPE_BIND_INDEX_BUFFER |
273					   PIPE_BIND_CONSTANT_BUFFER,
274					   U_VERTEX_FETCH_DWORD_ALIGNED);
275	if (!rctx->vbuf_mgr) {
276		r600_destroy_context(&rctx->context);
277		return NULL;
278	}
279	rctx->vbuf_mgr->caps.format_fixed32 = 0;
280
281	rctx->blitter = util_blitter_create(&rctx->context);
282	if (rctx->blitter == NULL) {
283		r600_destroy_context(&rctx->context);
284		return NULL;
285	}
286
287	r600_get_backend_mask(&rctx->ctx); /* this emits commands and must be last */
288
289	return &rctx->context;
290}
291
292/*
293 * pipe_screen
294 */
295static const char* r600_get_vendor(struct pipe_screen* pscreen)
296{
297	return "X.Org";
298}
299
300static const char *r600_get_family_name(enum radeon_family family)
301{
302	switch(family) {
303	case CHIP_R600: return "AMD R600";
304	case CHIP_RV610: return "AMD RV610";
305	case CHIP_RV630: return "AMD RV630";
306	case CHIP_RV670: return "AMD RV670";
307	case CHIP_RV620: return "AMD RV620";
308	case CHIP_RV635: return "AMD RV635";
309	case CHIP_RS780: return "AMD RS780";
310	case CHIP_RS880: return "AMD RS880";
311	case CHIP_RV770: return "AMD RV770";
312	case CHIP_RV730: return "AMD RV730";
313	case CHIP_RV710: return "AMD RV710";
314	case CHIP_RV740: return "AMD RV740";
315	case CHIP_CEDAR: return "AMD CEDAR";
316	case CHIP_REDWOOD: return "AMD REDWOOD";
317	case CHIP_JUNIPER: return "AMD JUNIPER";
318	case CHIP_CYPRESS: return "AMD CYPRESS";
319	case CHIP_HEMLOCK: return "AMD HEMLOCK";
320	case CHIP_PALM: return "AMD PALM";
321	case CHIP_SUMO: return "AMD SUMO";
322	case CHIP_SUMO2: return "AMD SUMO2";
323	case CHIP_BARTS: return "AMD BARTS";
324	case CHIP_TURKS: return "AMD TURKS";
325	case CHIP_CAICOS: return "AMD CAICOS";
326	case CHIP_CAYMAN: return "AMD CAYMAN";
327	default: return "AMD unknown";
328	}
329}
330
331static const char* r600_get_name(struct pipe_screen* pscreen)
332{
333	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
334
335	return r600_get_family_name(rscreen->family);
336}
337
338static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
339{
340	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
341	enum radeon_family family = rscreen->family;
342
343	switch (param) {
344	/* Supported features (boolean caps). */
345	case PIPE_CAP_NPOT_TEXTURES:
346	case PIPE_CAP_TWO_SIDED_STENCIL:
347	case PIPE_CAP_DUAL_SOURCE_BLEND:
348	case PIPE_CAP_ANISOTROPIC_FILTER:
349	case PIPE_CAP_POINT_SPRITE:
350	case PIPE_CAP_OCCLUSION_QUERY:
351	case PIPE_CAP_TEXTURE_SHADOW_MAP:
352	case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
353	case PIPE_CAP_BLEND_EQUATION_SEPARATE:
354	case PIPE_CAP_TEXTURE_SWIZZLE:
355	case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
356	case PIPE_CAP_DEPTH_CLIP_DISABLE:
357	case PIPE_CAP_SHADER_STENCIL_EXPORT:
358	case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
359	case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
360	case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
361	case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
362	case PIPE_CAP_SM3:
363	case PIPE_CAP_SEAMLESS_CUBE_MAP:
364	case PIPE_CAP_FRAGMENT_COLOR_CLAMP_CONTROL:
365	case PIPE_CAP_PRIMITIVE_RESTART:
366	case PIPE_CAP_CONDITIONAL_RENDER:
367	case PIPE_CAP_TEXTURE_BARRIER:
368	case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
369		return 1;
370
371	/* Supported except the original R600. */
372	case PIPE_CAP_INDEP_BLEND_ENABLE:
373	case PIPE_CAP_INDEP_BLEND_FUNC:
374		/* R600 doesn't support per-MRT blends */
375		return family == CHIP_R600 ? 0 : 1;
376
377	/* Supported on Evergreen. */
378	case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
379		return family >= CHIP_CEDAR ? 1 : 0;
380
381	/* Unsupported features. */
382	case PIPE_CAP_TGSI_INSTANCEID:
383	case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
384	case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
385	case PIPE_CAP_SCALED_RESOLVE:
386	case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
387	case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
388		return 0;
389
390	/* Stream output. */
391	case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
392		return debug_get_bool_option("R600_STREAMOUT", FALSE) ? 4 : 0;
393	case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
394	case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
395		return 16*4;
396
397	/* Texturing. */
398	case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
399	case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
400	case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
401		if (family >= CHIP_CEDAR)
402			return 15;
403		else
404			return 14;
405	case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
406		return rscreen->info.drm_minor >= 9 ?
407			(family >= CHIP_CEDAR ? 16384 : 8192) : 0;
408	case PIPE_CAP_MAX_COMBINED_SAMPLERS:
409		return 32;
410
411	/* Render targets. */
412	case PIPE_CAP_MAX_RENDER_TARGETS:
413		/* FIXME some r6xx are buggy and can only do 4 */
414		return 8;
415
416	/* Timer queries, present when the clock frequency is non zero. */
417	case PIPE_CAP_TIMER_QUERY:
418		return rscreen->info.r600_clock_crystal_freq != 0;
419
420	case PIPE_CAP_MIN_TEXEL_OFFSET:
421		return -8;
422
423	case PIPE_CAP_MAX_TEXEL_OFFSET:
424		return 7;
425	}
426	return 0;
427}
428
429static float r600_get_paramf(struct pipe_screen* pscreen,
430			     enum pipe_capf param)
431{
432	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
433	enum radeon_family family = rscreen->family;
434
435	switch (param) {
436	case PIPE_CAPF_MAX_LINE_WIDTH:
437	case PIPE_CAPF_MAX_LINE_WIDTH_AA:
438	case PIPE_CAPF_MAX_POINT_WIDTH:
439	case PIPE_CAPF_MAX_POINT_WIDTH_AA:
440		if (family >= CHIP_CEDAR)
441			return 16384.0f;
442		else
443			return 8192.0f;
444	case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
445		return 16.0f;
446	case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
447		return 16.0f;
448	case PIPE_CAPF_GUARD_BAND_LEFT:
449	case PIPE_CAPF_GUARD_BAND_TOP:
450	case PIPE_CAPF_GUARD_BAND_RIGHT:
451	case PIPE_CAPF_GUARD_BAND_BOTTOM:
452		return 0.0f;
453	}
454	return 0.0f;
455}
456
457static int r600_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enum pipe_shader_cap param)
458{
459	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
460	switch(shader)
461	{
462	case PIPE_SHADER_FRAGMENT:
463	case PIPE_SHADER_VERTEX:
464		break;
465	case PIPE_SHADER_GEOMETRY:
466		/* TODO: support and enable geometry programs */
467		return 0;
468	default:
469		/* TODO: support tessellation on Evergreen */
470		return 0;
471	}
472
473	/* TODO: all these should be fixed, since r600 surely supports much more! */
474	switch (param) {
475	case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
476	case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
477	case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
478	case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
479		return 16384;
480	case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
481		return 8; /* FIXME */
482	case PIPE_SHADER_CAP_MAX_INPUTS:
483		if(shader == PIPE_SHADER_FRAGMENT)
484			return 34;
485		else
486			return 32;
487	case PIPE_SHADER_CAP_MAX_TEMPS:
488		return 256; /* Max native temporaries. */
489	case PIPE_SHADER_CAP_MAX_ADDRS:
490		/* FIXME Isn't this equal to TEMPS? */
491		return 1; /* Max native address registers */
492	case PIPE_SHADER_CAP_MAX_CONSTS:
493		return R600_MAX_CONST_BUFFER_SIZE;
494	case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
495		return R600_MAX_CONST_BUFFERS;
496	case PIPE_SHADER_CAP_MAX_PREDS:
497		return 0; /* FIXME */
498	case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
499		return 1;
500	case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
501	case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
502	case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
503	case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
504		return 1;
505	case PIPE_SHADER_CAP_SUBROUTINES:
506		return 0;
507	case PIPE_SHADER_CAP_INTEGERS:
508		return 0;
509	case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
510		return 16;
511	case PIPE_SHADER_CAP_OUTPUT_READ:
512		return 1;
513	}
514	return 0;
515}
516
517static int r600_get_video_param(struct pipe_screen *screen,
518				enum pipe_video_profile profile,
519				enum pipe_video_cap param)
520{
521	switch (param) {
522	case PIPE_VIDEO_CAP_SUPPORTED:
523		return vl_profile_supported(screen, profile);
524	case PIPE_VIDEO_CAP_NPOT_TEXTURES:
525		return 1;
526	case PIPE_VIDEO_CAP_MAX_WIDTH:
527	case PIPE_VIDEO_CAP_MAX_HEIGHT:
528		return vl_video_buffer_max_size(screen);
529	default:
530		return 0;
531	}
532}
533
534static void r600_destroy_screen(struct pipe_screen* pscreen)
535{
536	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
537
538	if (rscreen == NULL)
539		return;
540
541	if (rscreen->fences.bo) {
542		struct r600_fence_block *entry, *tmp;
543
544		LIST_FOR_EACH_ENTRY_SAFE(entry, tmp, &rscreen->fences.blocks, head) {
545			LIST_DEL(&entry->head);
546			FREE(entry);
547		}
548
549		rscreen->ws->buffer_unmap(rscreen->fences.bo->buf);
550		pipe_resource_reference((struct pipe_resource**)&rscreen->fences.bo, NULL);
551	}
552	pipe_mutex_destroy(rscreen->fences.mutex);
553
554	rscreen->ws->destroy(rscreen->ws);
555
556	util_slab_destroy(&rscreen->pool_buffers);
557	pipe_mutex_destroy(rscreen->mutex_num_contexts);
558	FREE(rscreen);
559}
560
561static void r600_fence_reference(struct pipe_screen *pscreen,
562                                 struct pipe_fence_handle **ptr,
563                                 struct pipe_fence_handle *fence)
564{
565	struct r600_fence **oldf = (struct r600_fence**)ptr;
566	struct r600_fence *newf = (struct r600_fence*)fence;
567
568	if (pipe_reference(&(*oldf)->reference, &newf->reference)) {
569		struct r600_screen *rscreen = (struct r600_screen *)pscreen;
570		pipe_mutex_lock(rscreen->fences.mutex);
571		LIST_ADDTAIL(&(*oldf)->head, &rscreen->fences.pool);
572		pipe_mutex_unlock(rscreen->fences.mutex);
573	}
574
575	*ptr = fence;
576}
577
578static boolean r600_fence_signalled(struct pipe_screen *pscreen,
579                                    struct pipe_fence_handle *fence)
580{
581	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
582	struct r600_fence *rfence = (struct r600_fence*)fence;
583
584	return rscreen->fences.data[rfence->index];
585}
586
587static boolean r600_fence_finish(struct pipe_screen *pscreen,
588                                 struct pipe_fence_handle *fence,
589                                 uint64_t timeout)
590{
591	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
592	struct r600_fence *rfence = (struct r600_fence*)fence;
593	int64_t start_time = 0;
594	unsigned spins = 0;
595
596	if (timeout != PIPE_TIMEOUT_INFINITE) {
597		start_time = os_time_get();
598
599		/* Convert to microseconds. */
600		timeout /= 1000;
601	}
602
603	while (rscreen->fences.data[rfence->index] == 0) {
604		if (++spins % 256)
605			continue;
606#ifdef PIPE_OS_UNIX
607		sched_yield();
608#else
609		os_time_sleep(10);
610#endif
611		if (timeout != PIPE_TIMEOUT_INFINITE &&
612		    os_time_get() - start_time >= timeout) {
613			return FALSE;
614		}
615	}
616
617	return TRUE;
618}
619
620static int r600_interpret_tiling(struct r600_screen *rscreen, uint32_t tiling_config)
621{
622	switch ((tiling_config & 0xe) >> 1) {
623	case 0:
624		rscreen->tiling_info.num_channels = 1;
625		break;
626	case 1:
627		rscreen->tiling_info.num_channels = 2;
628		break;
629	case 2:
630		rscreen->tiling_info.num_channels = 4;
631		break;
632	case 3:
633		rscreen->tiling_info.num_channels = 8;
634		break;
635	default:
636		return -EINVAL;
637	}
638
639	switch ((tiling_config & 0x30) >> 4) {
640	case 0:
641		rscreen->tiling_info.num_banks = 4;
642		break;
643	case 1:
644		rscreen->tiling_info.num_banks = 8;
645		break;
646	default:
647		return -EINVAL;
648
649	}
650	switch ((tiling_config & 0xc0) >> 6) {
651	case 0:
652		rscreen->tiling_info.group_bytes = 256;
653		break;
654	case 1:
655		rscreen->tiling_info.group_bytes = 512;
656		break;
657	default:
658		return -EINVAL;
659	}
660	return 0;
661}
662
663static int evergreen_interpret_tiling(struct r600_screen *rscreen, uint32_t tiling_config)
664{
665	switch (tiling_config & 0xf) {
666	case 0:
667		rscreen->tiling_info.num_channels = 1;
668		break;
669	case 1:
670		rscreen->tiling_info.num_channels = 2;
671		break;
672	case 2:
673		rscreen->tiling_info.num_channels = 4;
674		break;
675	case 3:
676		rscreen->tiling_info.num_channels = 8;
677		break;
678	default:
679		return -EINVAL;
680	}
681
682	switch ((tiling_config & 0xf0) >> 4) {
683	case 0:
684		rscreen->tiling_info.num_banks = 4;
685		break;
686	case 1:
687		rscreen->tiling_info.num_banks = 8;
688		break;
689	case 2:
690		rscreen->tiling_info.num_banks = 16;
691		break;
692	default:
693		return -EINVAL;
694	}
695
696	switch ((tiling_config & 0xf00) >> 8) {
697	case 0:
698		rscreen->tiling_info.group_bytes = 256;
699		break;
700	case 1:
701		rscreen->tiling_info.group_bytes = 512;
702		break;
703	default:
704		return -EINVAL;
705	}
706	return 0;
707}
708
709static int r600_init_tiling(struct r600_screen *rscreen)
710{
711	uint32_t tiling_config = rscreen->info.r600_tiling_config;
712
713	/* set default group bytes, overridden by tiling info ioctl */
714	if (rscreen->chip_class <= R700) {
715		rscreen->tiling_info.group_bytes = 256;
716	} else {
717		rscreen->tiling_info.group_bytes = 512;
718	}
719
720	if (!tiling_config)
721		return 0;
722
723	if (rscreen->chip_class <= R700) {
724		return r600_interpret_tiling(rscreen, tiling_config);
725	} else {
726		return evergreen_interpret_tiling(rscreen, tiling_config);
727	}
728}
729
730static unsigned radeon_family_from_device(unsigned device)
731{
732	switch (device) {
733#define CHIPSET(pciid, name, family) case pciid: return CHIP_##family;
734#include "pci_ids/r600_pci_ids.h"
735#undef CHIPSET
736	default:
737		return CHIP_UNKNOWN;
738	}
739}
740
741struct pipe_screen *r600_screen_create(struct radeon_winsys *ws)
742{
743	struct r600_screen *rscreen = CALLOC_STRUCT(r600_screen);
744	if (rscreen == NULL) {
745		return NULL;
746	}
747
748	rscreen->ws = ws;
749	ws->query_info(ws, &rscreen->info);
750
751	rscreen->family = radeon_family_from_device(rscreen->info.pci_id);
752	if (rscreen->family == CHIP_UNKNOWN) {
753		fprintf(stderr, "r600: Unknown chipset 0x%04X\n", rscreen->info.pci_id);
754		FREE(rscreen);
755		return NULL;
756	}
757
758	/* setup class */
759	if (rscreen->family == CHIP_CAYMAN) {
760		rscreen->chip_class = CAYMAN;
761	} else if (rscreen->family >= CHIP_CEDAR) {
762		rscreen->chip_class = EVERGREEN;
763	} else if (rscreen->family >= CHIP_RV770) {
764		rscreen->chip_class = R700;
765	} else {
766		rscreen->chip_class = R600;
767	}
768
769	if (r600_init_tiling(rscreen)) {
770		FREE(rscreen);
771		return NULL;
772	}
773
774	rscreen->screen.winsys = (struct pipe_winsys*)ws;
775	rscreen->screen.destroy = r600_destroy_screen;
776	rscreen->screen.get_name = r600_get_name;
777	rscreen->screen.get_vendor = r600_get_vendor;
778	rscreen->screen.get_param = r600_get_param;
779	rscreen->screen.get_shader_param = r600_get_shader_param;
780	rscreen->screen.get_paramf = r600_get_paramf;
781	rscreen->screen.get_video_param = r600_get_video_param;
782	if (rscreen->chip_class >= EVERGREEN) {
783		rscreen->screen.is_format_supported = evergreen_is_format_supported;
784	} else {
785		rscreen->screen.is_format_supported = r600_is_format_supported;
786	}
787	rscreen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
788	rscreen->screen.context_create = r600_create_context;
789	rscreen->screen.fence_reference = r600_fence_reference;
790	rscreen->screen.fence_signalled = r600_fence_signalled;
791	rscreen->screen.fence_finish = r600_fence_finish;
792	r600_init_screen_resource_functions(&rscreen->screen);
793
794	util_format_s3tc_init();
795
796	util_slab_create(&rscreen->pool_buffers,
797			 sizeof(struct r600_resource), 64,
798			 UTIL_SLAB_SINGLETHREADED);
799
800	pipe_mutex_init(rscreen->mutex_num_contexts);
801
802	rscreen->fences.bo = NULL;
803	rscreen->fences.data = NULL;
804	rscreen->fences.next_index = 0;
805	LIST_INITHEAD(&rscreen->fences.pool);
806	LIST_INITHEAD(&rscreen->fences.blocks);
807	pipe_mutex_init(rscreen->fences.mutex);
808
809	return &rscreen->screen;
810}
811