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 "r600_pipe.h"
24#include "r600_public.h"
25
26#include <errno.h>
27#include "pipe/p_shader_tokens.h"
28#include "util/u_blitter.h"
29#include "util/u_format_s3tc.h"
30#include "util/u_simple_shaders.h"
31#include "util/u_upload_mgr.h"
32#include "vl/vl_decoder.h"
33#include "vl/vl_video_buffer.h"
34#include "os/os_time.h"
35
36/*
37 * pipe_context
38 */
39static struct r600_fence *r600_create_fence(struct r600_context *rctx)
40{
41	struct r600_screen *rscreen = rctx->screen;
42	struct r600_fence *fence = NULL;
43
44	pipe_mutex_lock(rscreen->fences.mutex);
45
46	if (!rscreen->fences.bo) {
47		/* Create the shared buffer object */
48		rscreen->fences.bo = (struct r600_resource*)
49			pipe_buffer_create(&rscreen->screen, PIPE_BIND_CUSTOM,
50					   PIPE_USAGE_STAGING, 4096);
51		if (!rscreen->fences.bo) {
52			R600_ERR("r600: failed to create bo for fence objects\n");
53			goto out;
54		}
55		rscreen->fences.data = rctx->ws->buffer_map(rscreen->fences.bo->cs_buf,
56							   rctx->cs,
57							   PIPE_TRANSFER_READ_WRITE);
58	}
59
60	if (!LIST_IS_EMPTY(&rscreen->fences.pool)) {
61		struct r600_fence *entry;
62
63		/* Try to find a freed fence that has been signalled */
64		LIST_FOR_EACH_ENTRY(entry, &rscreen->fences.pool, head) {
65			if (rscreen->fences.data[entry->index] != 0) {
66				LIST_DELINIT(&entry->head);
67				fence = entry;
68				break;
69			}
70		}
71	}
72
73	if (!fence) {
74		/* Allocate a new fence */
75		struct r600_fence_block *block;
76		unsigned index;
77
78		if ((rscreen->fences.next_index + 1) >= 1024) {
79			R600_ERR("r600: too many concurrent fences\n");
80			goto out;
81		}
82
83		index = rscreen->fences.next_index++;
84
85		if (!(index % FENCE_BLOCK_SIZE)) {
86			/* Allocate a new block */
87			block = CALLOC_STRUCT(r600_fence_block);
88			if (block == NULL)
89				goto out;
90
91			LIST_ADD(&block->head, &rscreen->fences.blocks);
92		} else {
93			block = LIST_ENTRY(struct r600_fence_block, rscreen->fences.blocks.next, head);
94		}
95
96		fence = &block->fences[index % FENCE_BLOCK_SIZE];
97		fence->index = index;
98	}
99
100	pipe_reference_init(&fence->reference, 1);
101
102	rscreen->fences.data[fence->index] = 0;
103	r600_context_emit_fence(rctx, rscreen->fences.bo, fence->index, 1);
104
105	/* Create a dummy BO so that fence_finish without a timeout can sleep waiting for completion */
106	fence->sleep_bo = (struct r600_resource*)
107			pipe_buffer_create(&rctx->screen->screen, PIPE_BIND_CUSTOM,
108					   PIPE_USAGE_STAGING, 1);
109	/* Add the fence as a dummy relocation. */
110	r600_context_bo_reloc(rctx, fence->sleep_bo, RADEON_USAGE_READWRITE);
111
112out:
113	pipe_mutex_unlock(rscreen->fences.mutex);
114	return fence;
115}
116
117
118void r600_flush(struct pipe_context *ctx, struct pipe_fence_handle **fence,
119		unsigned flags)
120{
121	struct r600_context *rctx = (struct r600_context *)ctx;
122	struct r600_fence **rfence = (struct r600_fence**)fence;
123	struct pipe_query *render_cond = NULL;
124	unsigned render_cond_mode = 0;
125
126	if (rfence)
127		*rfence = r600_create_fence(rctx);
128
129	/* Disable render condition. */
130	if (rctx->current_render_cond) {
131		render_cond = rctx->current_render_cond;
132		render_cond_mode = rctx->current_render_cond_mode;
133		ctx->render_condition(ctx, NULL, 0);
134	}
135
136	r600_context_flush(rctx, flags);
137
138	/* Re-enable render condition. */
139	if (render_cond) {
140		ctx->render_condition(ctx, render_cond, render_cond_mode);
141	}
142}
143
144static void r600_flush_from_st(struct pipe_context *ctx,
145			       struct pipe_fence_handle **fence)
146{
147	r600_flush(ctx, fence, 0);
148}
149
150static void r600_flush_from_winsys(void *ctx, unsigned flags)
151{
152	r600_flush((struct pipe_context*)ctx, NULL, flags);
153}
154
155static void r600_destroy_context(struct pipe_context *context)
156{
157	struct r600_context *rctx = (struct r600_context *)context;
158
159	pipe_resource_reference((struct pipe_resource**)&rctx->dummy_cmask, NULL);
160	pipe_resource_reference((struct pipe_resource**)&rctx->dummy_fmask, NULL);
161
162	if (rctx->no_blend) {
163		rctx->context.delete_blend_state(&rctx->context, rctx->no_blend);
164	}
165	if (rctx->dummy_pixel_shader) {
166		rctx->context.delete_fs_state(&rctx->context, rctx->dummy_pixel_shader);
167	}
168	if (rctx->custom_dsa_flush) {
169		rctx->context.delete_depth_stencil_alpha_state(&rctx->context, rctx->custom_dsa_flush);
170	}
171	if (rctx->custom_blend_resolve) {
172		rctx->context.delete_blend_state(&rctx->context, rctx->custom_blend_resolve);
173	}
174	if (rctx->custom_blend_decompress) {
175		rctx->context.delete_blend_state(&rctx->context, rctx->custom_blend_decompress);
176	}
177	util_unreference_framebuffer_state(&rctx->framebuffer);
178
179	r600_context_fini(rctx);
180
181	if (rctx->blitter) {
182		util_blitter_destroy(rctx->blitter);
183	}
184	for (int i = 0; i < R600_PIPE_NSTATES; i++) {
185		free(rctx->states[i]);
186	}
187
188	if (rctx->uploader) {
189		u_upload_destroy(rctx->uploader);
190	}
191	util_slab_destroy(&rctx->pool_transfers);
192
193	r600_release_command_buffer(&rctx->start_cs_cmd);
194
195	if (rctx->cs) {
196		rctx->ws->cs_destroy(rctx->cs);
197	}
198
199	FREE(rctx->range);
200	FREE(rctx);
201}
202
203static struct pipe_context *r600_create_context(struct pipe_screen *screen, void *priv)
204{
205	struct r600_context *rctx = CALLOC_STRUCT(r600_context);
206	struct r600_screen* rscreen = (struct r600_screen *)screen;
207	struct pipe_blend_state no_blend = {};
208
209	if (rctx == NULL)
210		return NULL;
211
212	util_slab_create(&rctx->pool_transfers,
213			 sizeof(struct r600_transfer), 64,
214			 UTIL_SLAB_SINGLETHREADED);
215
216	rctx->context.screen = screen;
217	rctx->context.priv = priv;
218	rctx->context.destroy = r600_destroy_context;
219	rctx->context.flush = r600_flush_from_st;
220
221	/* Easy accessing of screen/winsys. */
222	rctx->screen = rscreen;
223	rctx->ws = rscreen->ws;
224	rctx->family = rscreen->family;
225	rctx->chip_class = rscreen->chip_class;
226
227	LIST_INITHEAD(&rctx->dirty_states);
228	LIST_INITHEAD(&rctx->active_timer_queries);
229	LIST_INITHEAD(&rctx->active_nontimer_queries);
230	LIST_INITHEAD(&rctx->dirty);
231	LIST_INITHEAD(&rctx->enable_list);
232
233	rctx->range = CALLOC(NUM_RANGES, sizeof(struct r600_range));
234	if (!rctx->range)
235		goto fail;
236
237	r600_init_blit_functions(rctx);
238	r600_init_query_functions(rctx);
239	r600_init_context_resource_functions(rctx);
240	r600_init_surface_functions(rctx);
241	rctx->context.draw_vbo = r600_draw_vbo;
242
243	rctx->context.create_video_decoder = vl_create_decoder;
244	rctx->context.create_video_buffer = vl_video_buffer_create;
245
246	r600_init_common_atoms(rctx);
247
248	switch (rctx->chip_class) {
249	case R600:
250	case R700:
251		r600_init_state_functions(rctx);
252		r600_init_atom_start_cs(rctx);
253		if (r600_context_init(rctx))
254			goto fail;
255		rctx->custom_dsa_flush = r600_create_db_flush_dsa(rctx);
256		rctx->custom_blend_resolve = rctx->chip_class == R700 ? r700_create_resolve_blend(rctx)
257								      : r600_create_resolve_blend(rctx);
258		rctx->custom_blend_decompress = r600_create_decompress_blend(rctx);
259		rctx->has_vertex_cache = !(rctx->family == CHIP_RV610 ||
260					   rctx->family == CHIP_RV620 ||
261					   rctx->family == CHIP_RS780 ||
262					   rctx->family == CHIP_RS880 ||
263					   rctx->family == CHIP_RV710);
264		break;
265	case EVERGREEN:
266	case CAYMAN:
267		evergreen_init_state_functions(rctx);
268		evergreen_init_atom_start_cs(rctx);
269		evergreen_init_atom_start_compute_cs(rctx);
270		if (evergreen_context_init(rctx))
271			goto fail;
272		rctx->custom_dsa_flush = evergreen_create_db_flush_dsa(rctx);
273		rctx->custom_blend_resolve = evergreen_create_resolve_blend(rctx);
274		rctx->custom_blend_decompress = evergreen_create_decompress_blend(rctx);
275		rctx->has_vertex_cache = !(rctx->family == CHIP_CEDAR ||
276					   rctx->family == CHIP_PALM ||
277					   rctx->family == CHIP_SUMO ||
278					   rctx->family == CHIP_SUMO2 ||
279					   rctx->family == CHIP_CAICOS ||
280					   rctx->family == CHIP_CAYMAN ||
281					   rctx->family == CHIP_ARUBA);
282		break;
283	default:
284		R600_ERR("Unsupported chip class %d.\n", rctx->chip_class);
285		goto fail;
286	}
287
288	rctx->cs = rctx->ws->cs_create(rctx->ws);
289	rctx->ws->cs_set_flush_callback(rctx->cs, r600_flush_from_winsys, rctx);
290	r600_emit_atom(rctx, &rctx->start_cs_cmd.atom);
291
292        rctx->uploader = u_upload_create(&rctx->context, 1024 * 1024, 256,
293                                         PIPE_BIND_INDEX_BUFFER |
294                                         PIPE_BIND_CONSTANT_BUFFER);
295        if (!rctx->uploader)
296                goto fail;
297
298	rctx->blitter = util_blitter_create(&rctx->context);
299	if (rctx->blitter == NULL)
300		goto fail;
301	rctx->blitter->draw_rectangle = r600_draw_rectangle;
302
303	r600_get_backend_mask(rctx); /* this emits commands and must be last */
304
305	if (rctx->chip_class == R600)
306		r600_set_max_scissor(rctx);
307
308	rctx->dummy_pixel_shader =
309		util_make_fragment_cloneinput_shader(&rctx->context, 0,
310						     TGSI_SEMANTIC_GENERIC,
311						     TGSI_INTERPOLATE_CONSTANT);
312	rctx->context.bind_fs_state(&rctx->context, rctx->dummy_pixel_shader);
313
314	no_blend.rt[0].colormask = 0xF;
315	rctx->no_blend = rctx->context.create_blend_state(&rctx->context, &no_blend);
316
317	return &rctx->context;
318
319fail:
320	r600_destroy_context(&rctx->context);
321	return NULL;
322}
323
324/*
325 * pipe_screen
326 */
327static const char* r600_get_vendor(struct pipe_screen* pscreen)
328{
329	return "X.Org";
330}
331
332static const char *r600_get_family_name(enum radeon_family family)
333{
334	switch(family) {
335	case CHIP_R600: return "AMD R600";
336	case CHIP_RV610: return "AMD RV610";
337	case CHIP_RV630: return "AMD RV630";
338	case CHIP_RV670: return "AMD RV670";
339	case CHIP_RV620: return "AMD RV620";
340	case CHIP_RV635: return "AMD RV635";
341	case CHIP_RS780: return "AMD RS780";
342	case CHIP_RS880: return "AMD RS880";
343	case CHIP_RV770: return "AMD RV770";
344	case CHIP_RV730: return "AMD RV730";
345	case CHIP_RV710: return "AMD RV710";
346	case CHIP_RV740: return "AMD RV740";
347	case CHIP_CEDAR: return "AMD CEDAR";
348	case CHIP_REDWOOD: return "AMD REDWOOD";
349	case CHIP_JUNIPER: return "AMD JUNIPER";
350	case CHIP_CYPRESS: return "AMD CYPRESS";
351	case CHIP_HEMLOCK: return "AMD HEMLOCK";
352	case CHIP_PALM: return "AMD PALM";
353	case CHIP_SUMO: return "AMD SUMO";
354	case CHIP_SUMO2: return "AMD SUMO2";
355	case CHIP_BARTS: return "AMD BARTS";
356	case CHIP_TURKS: return "AMD TURKS";
357	case CHIP_CAICOS: return "AMD CAICOS";
358	case CHIP_CAYMAN: return "AMD CAYMAN";
359	case CHIP_ARUBA: return "AMD ARUBA";
360	default: return "AMD unknown";
361	}
362}
363
364static const char* r600_get_name(struct pipe_screen* pscreen)
365{
366	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
367
368	return r600_get_family_name(rscreen->family);
369}
370
371static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
372{
373	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
374	enum radeon_family family = rscreen->family;
375
376	switch (param) {
377	/* Supported features (boolean caps). */
378	case PIPE_CAP_NPOT_TEXTURES:
379	case PIPE_CAP_TWO_SIDED_STENCIL:
380	case PIPE_CAP_ANISOTROPIC_FILTER:
381	case PIPE_CAP_POINT_SPRITE:
382	case PIPE_CAP_OCCLUSION_QUERY:
383	case PIPE_CAP_TEXTURE_SHADOW_MAP:
384	case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
385	case PIPE_CAP_BLEND_EQUATION_SEPARATE:
386	case PIPE_CAP_TEXTURE_SWIZZLE:
387	case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
388	case PIPE_CAP_DEPTH_CLIP_DISABLE:
389	case PIPE_CAP_SHADER_STENCIL_EXPORT:
390	case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
391	case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
392	case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
393	case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
394	case PIPE_CAP_SM3:
395	case PIPE_CAP_SEAMLESS_CUBE_MAP:
396	case PIPE_CAP_PRIMITIVE_RESTART:
397	case PIPE_CAP_CONDITIONAL_RENDER:
398	case PIPE_CAP_TEXTURE_BARRIER:
399	case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
400	case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
401	case PIPE_CAP_TGSI_INSTANCEID:
402	case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
403	case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
404	case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
405	case PIPE_CAP_USER_INDEX_BUFFERS:
406	case PIPE_CAP_USER_CONSTANT_BUFFERS:
407	case PIPE_CAP_COMPUTE:
408	case PIPE_CAP_START_INSTANCE:
409	case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
410		return 1;
411
412	case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
413		return 256;
414
415	case PIPE_CAP_GLSL_FEATURE_LEVEL:
416		return 130;
417
418	/* Supported except the original R600. */
419	case PIPE_CAP_INDEP_BLEND_ENABLE:
420	case PIPE_CAP_INDEP_BLEND_FUNC:
421		/* R600 doesn't support per-MRT blends */
422		return family == CHIP_R600 ? 0 : 1;
423
424	/* Supported on Evergreen. */
425	case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
426		return family >= CHIP_CEDAR ? 1 : 0;
427
428	/* Unsupported features. */
429	case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
430	case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
431	case PIPE_CAP_SCALED_RESOLVE:
432	case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
433	case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
434	case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
435	case PIPE_CAP_VERTEX_COLOR_CLAMPED:
436	case PIPE_CAP_USER_VERTEX_BUFFERS:
437		return 0;
438
439	/* Stream output. */
440	case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
441		return rscreen->has_streamout ? 4 : 0;
442	case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
443		return rscreen->has_streamout ? 1 : 0;
444	case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
445	case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
446		return 32*4;
447
448	/* Texturing. */
449	case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
450	case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
451	case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
452		if (family >= CHIP_CEDAR)
453			return 15;
454		else
455			return 14;
456	case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
457		return rscreen->info.drm_minor >= 9 ?
458			(family >= CHIP_CEDAR ? 16384 : 8192) : 0;
459	case PIPE_CAP_MAX_COMBINED_SAMPLERS:
460		return 32;
461
462	/* Render targets. */
463	case PIPE_CAP_MAX_RENDER_TARGETS:
464		/* XXX some r6xx are buggy and can only do 4 */
465		return 8;
466
467	/* Timer queries, present when the clock frequency is non zero. */
468	case PIPE_CAP_TIMER_QUERY:
469		return rscreen->info.r600_clock_crystal_freq != 0;
470	case PIPE_CAP_QUERY_TIMESTAMP:
471		return rscreen->info.drm_minor >= 20 &&
472		       rscreen->info.r600_clock_crystal_freq != 0;
473
474	case PIPE_CAP_MIN_TEXEL_OFFSET:
475		return -8;
476
477	case PIPE_CAP_MAX_TEXEL_OFFSET:
478		return 7;
479	}
480	return 0;
481}
482
483static float r600_get_paramf(struct pipe_screen* pscreen,
484			     enum pipe_capf param)
485{
486	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
487	enum radeon_family family = rscreen->family;
488
489	switch (param) {
490	case PIPE_CAPF_MAX_LINE_WIDTH:
491	case PIPE_CAPF_MAX_LINE_WIDTH_AA:
492	case PIPE_CAPF_MAX_POINT_WIDTH:
493	case PIPE_CAPF_MAX_POINT_WIDTH_AA:
494		if (family >= CHIP_CEDAR)
495			return 16384.0f;
496		else
497			return 8192.0f;
498	case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
499		return 16.0f;
500	case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
501		return 16.0f;
502	case PIPE_CAPF_GUARD_BAND_LEFT:
503	case PIPE_CAPF_GUARD_BAND_TOP:
504	case PIPE_CAPF_GUARD_BAND_RIGHT:
505	case PIPE_CAPF_GUARD_BAND_BOTTOM:
506		return 0.0f;
507	}
508	return 0.0f;
509}
510
511static int r600_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enum pipe_shader_cap param)
512{
513	switch(shader)
514	{
515	case PIPE_SHADER_FRAGMENT:
516	case PIPE_SHADER_VERTEX:
517        case PIPE_SHADER_COMPUTE:
518		break;
519	case PIPE_SHADER_GEOMETRY:
520		/* XXX: support and enable geometry programs */
521		return 0;
522	default:
523		/* XXX: support tessellation on Evergreen */
524		return 0;
525	}
526
527	/* XXX: all these should be fixed, since r600 surely supports much more! */
528	switch (param) {
529	case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
530	case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
531	case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
532	case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
533		return 16384;
534	case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
535		return 8; /* XXX */
536	case PIPE_SHADER_CAP_MAX_INPUTS:
537		if(shader == PIPE_SHADER_FRAGMENT)
538			return 34;
539		else
540			return 32;
541	case PIPE_SHADER_CAP_MAX_TEMPS:
542		return 256; /* Max native temporaries. */
543	case PIPE_SHADER_CAP_MAX_ADDRS:
544		/* XXX Isn't this equal to TEMPS? */
545		return 1; /* Max native address registers */
546	case PIPE_SHADER_CAP_MAX_CONSTS:
547		return R600_MAX_CONST_BUFFER_SIZE;
548	case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
549		return R600_MAX_CONST_BUFFERS-1;
550	case PIPE_SHADER_CAP_MAX_PREDS:
551		return 0; /* nothing uses this */
552	case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
553		return 1;
554	case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
555	case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
556	case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
557	case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
558		return 1;
559	case PIPE_SHADER_CAP_SUBROUTINES:
560		return 0;
561	case PIPE_SHADER_CAP_INTEGERS:
562		return 1;
563	case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
564		return 16;
565        case PIPE_SHADER_CAP_PREFERRED_IR:
566		if (shader == PIPE_SHADER_COMPUTE) {
567			return PIPE_SHADER_IR_LLVM;
568		} else {
569			return PIPE_SHADER_IR_TGSI;
570		}
571	}
572	return 0;
573}
574
575static int r600_get_video_param(struct pipe_screen *screen,
576				enum pipe_video_profile profile,
577				enum pipe_video_cap param)
578{
579	switch (param) {
580	case PIPE_VIDEO_CAP_SUPPORTED:
581		return vl_profile_supported(screen, profile);
582	case PIPE_VIDEO_CAP_NPOT_TEXTURES:
583		return 1;
584	case PIPE_VIDEO_CAP_MAX_WIDTH:
585	case PIPE_VIDEO_CAP_MAX_HEIGHT:
586		return vl_video_buffer_max_size(screen);
587	case PIPE_VIDEO_CAP_PREFERED_FORMAT:
588		return PIPE_FORMAT_NV12;
589	case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
590		return false;
591	case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
592		return false;
593	case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
594		return true;
595	default:
596		return 0;
597	}
598}
599
600static int r600_get_compute_param(struct pipe_screen *screen,
601        enum pipe_compute_cap param,
602        void *ret)
603{
604	//TODO: select these params by asic
605	switch (param) {
606	case PIPE_COMPUTE_CAP_IR_TARGET:
607		if (ret) {
608			strcpy(ret, "r600--");
609		}
610		return 7 * sizeof(char);
611
612	case PIPE_COMPUTE_CAP_GRID_DIMENSION:
613		if (ret) {
614			uint64_t * grid_dimension = ret;
615			grid_dimension[0] = 3;
616		}
617		return 1 * sizeof(uint64_t);
618
619	case PIPE_COMPUTE_CAP_MAX_GRID_SIZE:
620		if (ret) {
621			uint64_t * grid_size = ret;
622			grid_size[0] = 65535;
623			grid_size[1] = 65535;
624			grid_size[2] = 1;
625		}
626		return 3 * sizeof(uint64_t) ;
627
628	case PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE:
629		if (ret) {
630			uint64_t * block_size = ret;
631			block_size[0] = 256;
632			block_size[1] = 256;
633			block_size[2] = 256;
634		}
635		return 3 * sizeof(uint64_t);
636
637	case PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK:
638		if (ret) {
639			uint64_t * max_threads_per_block = ret;
640			*max_threads_per_block = 256;
641		}
642		return sizeof(uint64_t);
643
644	case PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE:
645		if (ret) {
646			uint64_t * max_global_size = ret;
647			/* XXX: This is 64kb for now until we get the
648			 * compute memory pool working correctly.
649			 */
650			*max_global_size = 1024 * 16 * 4;
651		}
652		return sizeof(uint64_t);
653
654	case PIPE_COMPUTE_CAP_MAX_INPUT_SIZE:
655		if (ret) {
656			uint64_t * max_input_size = ret;
657			*max_input_size = 1024;
658		}
659		return sizeof(uint64_t);
660
661	case PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE:
662		if (ret) {
663			uint64_t * max_local_size = ret;
664			/* XXX: This is what the proprietary driver reports, we
665			 * may want to use a different value. */
666			*max_local_size = 32768;
667		}
668		return sizeof(uint64_t);
669
670	default:
671		fprintf(stderr, "unknown PIPE_COMPUTE_CAP %d\n", param);
672		return 0;
673	}
674}
675
676static void r600_destroy_screen(struct pipe_screen* pscreen)
677{
678	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
679
680	if (rscreen == NULL)
681		return;
682
683	if (rscreen->global_pool) {
684		compute_memory_pool_delete(rscreen->global_pool);
685	}
686
687	if (rscreen->fences.bo) {
688		struct r600_fence_block *entry, *tmp;
689
690		LIST_FOR_EACH_ENTRY_SAFE(entry, tmp, &rscreen->fences.blocks, head) {
691			LIST_DEL(&entry->head);
692			FREE(entry);
693		}
694
695		rscreen->ws->buffer_unmap(rscreen->fences.bo->cs_buf);
696		pipe_resource_reference((struct pipe_resource**)&rscreen->fences.bo, NULL);
697	}
698	pipe_mutex_destroy(rscreen->fences.mutex);
699
700	rscreen->ws->destroy(rscreen->ws);
701	FREE(rscreen);
702}
703
704static void r600_fence_reference(struct pipe_screen *pscreen,
705                                 struct pipe_fence_handle **ptr,
706                                 struct pipe_fence_handle *fence)
707{
708	struct r600_fence **oldf = (struct r600_fence**)ptr;
709	struct r600_fence *newf = (struct r600_fence*)fence;
710
711	if (pipe_reference(&(*oldf)->reference, &newf->reference)) {
712		struct r600_screen *rscreen = (struct r600_screen *)pscreen;
713		pipe_mutex_lock(rscreen->fences.mutex);
714		pipe_resource_reference((struct pipe_resource**)&(*oldf)->sleep_bo, NULL);
715		LIST_ADDTAIL(&(*oldf)->head, &rscreen->fences.pool);
716		pipe_mutex_unlock(rscreen->fences.mutex);
717	}
718
719	*ptr = fence;
720}
721
722static boolean r600_fence_signalled(struct pipe_screen *pscreen,
723                                    struct pipe_fence_handle *fence)
724{
725	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
726	struct r600_fence *rfence = (struct r600_fence*)fence;
727
728	return rscreen->fences.data[rfence->index] != 0;
729}
730
731static boolean r600_fence_finish(struct pipe_screen *pscreen,
732                                 struct pipe_fence_handle *fence,
733                                 uint64_t timeout)
734{
735	struct r600_screen *rscreen = (struct r600_screen *)pscreen;
736	struct r600_fence *rfence = (struct r600_fence*)fence;
737	int64_t start_time = 0;
738	unsigned spins = 0;
739
740	if (timeout != PIPE_TIMEOUT_INFINITE) {
741		start_time = os_time_get();
742
743		/* Convert to microseconds. */
744		timeout /= 1000;
745	}
746
747	while (rscreen->fences.data[rfence->index] == 0) {
748		/* Special-case infinite timeout - wait for the dummy BO to become idle */
749		if (timeout == PIPE_TIMEOUT_INFINITE) {
750			rscreen->ws->buffer_wait(rfence->sleep_bo->buf, RADEON_USAGE_READWRITE);
751			break;
752		}
753
754		/* The dummy BO will be busy until the CS including the fence has completed, or
755		 * the GPU is reset. Don't bother continuing to spin when the BO is idle. */
756		if (!rscreen->ws->buffer_is_busy(rfence->sleep_bo->buf, RADEON_USAGE_READWRITE))
757			break;
758
759		if (++spins % 256)
760			continue;
761#ifdef PIPE_OS_UNIX
762		sched_yield();
763#else
764		os_time_sleep(10);
765#endif
766		if (timeout != PIPE_TIMEOUT_INFINITE &&
767		    os_time_get() - start_time >= timeout) {
768			break;
769		}
770	}
771
772	return rscreen->fences.data[rfence->index] != 0;
773}
774
775static int r600_interpret_tiling(struct r600_screen *rscreen, uint32_t tiling_config)
776{
777	switch ((tiling_config & 0xe) >> 1) {
778	case 0:
779		rscreen->tiling_info.num_channels = 1;
780		break;
781	case 1:
782		rscreen->tiling_info.num_channels = 2;
783		break;
784	case 2:
785		rscreen->tiling_info.num_channels = 4;
786		break;
787	case 3:
788		rscreen->tiling_info.num_channels = 8;
789		break;
790	default:
791		return -EINVAL;
792	}
793
794	switch ((tiling_config & 0x30) >> 4) {
795	case 0:
796		rscreen->tiling_info.num_banks = 4;
797		break;
798	case 1:
799		rscreen->tiling_info.num_banks = 8;
800		break;
801	default:
802		return -EINVAL;
803
804	}
805	switch ((tiling_config & 0xc0) >> 6) {
806	case 0:
807		rscreen->tiling_info.group_bytes = 256;
808		break;
809	case 1:
810		rscreen->tiling_info.group_bytes = 512;
811		break;
812	default:
813		return -EINVAL;
814	}
815	return 0;
816}
817
818static int evergreen_interpret_tiling(struct r600_screen *rscreen, uint32_t tiling_config)
819{
820	switch (tiling_config & 0xf) {
821	case 0:
822		rscreen->tiling_info.num_channels = 1;
823		break;
824	case 1:
825		rscreen->tiling_info.num_channels = 2;
826		break;
827	case 2:
828		rscreen->tiling_info.num_channels = 4;
829		break;
830	case 3:
831		rscreen->tiling_info.num_channels = 8;
832		break;
833	default:
834		return -EINVAL;
835	}
836
837	switch ((tiling_config & 0xf0) >> 4) {
838	case 0:
839		rscreen->tiling_info.num_banks = 4;
840		break;
841	case 1:
842		rscreen->tiling_info.num_banks = 8;
843		break;
844	case 2:
845		rscreen->tiling_info.num_banks = 16;
846		break;
847	default:
848		return -EINVAL;
849	}
850
851	switch ((tiling_config & 0xf00) >> 8) {
852	case 0:
853		rscreen->tiling_info.group_bytes = 256;
854		break;
855	case 1:
856		rscreen->tiling_info.group_bytes = 512;
857		break;
858	default:
859		return -EINVAL;
860	}
861	return 0;
862}
863
864static int r600_init_tiling(struct r600_screen *rscreen)
865{
866	uint32_t tiling_config = rscreen->info.r600_tiling_config;
867
868	/* set default group bytes, overridden by tiling info ioctl */
869	if (rscreen->chip_class <= R700) {
870		rscreen->tiling_info.group_bytes = 256;
871	} else {
872		rscreen->tiling_info.group_bytes = 512;
873	}
874
875	if (!tiling_config)
876		return 0;
877
878	if (rscreen->chip_class <= R700) {
879		return r600_interpret_tiling(rscreen, tiling_config);
880	} else {
881		return evergreen_interpret_tiling(rscreen, tiling_config);
882	}
883}
884
885static unsigned radeon_family_from_device(unsigned device)
886{
887	switch (device) {
888#define CHIPSET(pciid, name, family) case pciid: return CHIP_##family;
889#include "pci_ids/r600_pci_ids.h"
890#undef CHIPSET
891	default:
892		return CHIP_UNKNOWN;
893	}
894}
895
896static uint64_t r600_get_timestamp(struct pipe_screen *screen)
897{
898	struct r600_screen *rscreen = (struct r600_screen*)screen;
899
900	return 1000000 * rscreen->ws->query_timestamp(rscreen->ws) /
901			rscreen->info.r600_clock_crystal_freq;
902}
903
904struct pipe_screen *r600_screen_create(struct radeon_winsys *ws)
905{
906	struct r600_screen *rscreen = CALLOC_STRUCT(r600_screen);
907
908	if (rscreen == NULL) {
909		return NULL;
910	}
911
912	rscreen->ws = ws;
913	ws->query_info(ws, &rscreen->info);
914
915	rscreen->family = radeon_family_from_device(rscreen->info.pci_id);
916	if (rscreen->family == CHIP_UNKNOWN) {
917		fprintf(stderr, "r600: Unknown chipset 0x%04X\n", rscreen->info.pci_id);
918		FREE(rscreen);
919		return NULL;
920	}
921
922	/* setup class */
923	if (rscreen->family >= CHIP_CAYMAN) {
924		rscreen->chip_class = CAYMAN;
925	} else if (rscreen->family >= CHIP_CEDAR) {
926		rscreen->chip_class = EVERGREEN;
927	} else if (rscreen->family >= CHIP_RV770) {
928		rscreen->chip_class = R700;
929	} else {
930		rscreen->chip_class = R600;
931	}
932
933	/* Figure out streamout kernel support. */
934	switch (rscreen->chip_class) {
935	case R600:
936		if (rscreen->family < CHIP_RS780) {
937			rscreen->has_streamout = rscreen->info.drm_minor >= 14;
938		} else {
939			rscreen->has_streamout = rscreen->info.drm_minor >= 23;
940		}
941		break;
942	case R700:
943		rscreen->has_streamout = rscreen->info.drm_minor >= 17;
944		break;
945	case EVERGREEN:
946	case CAYMAN:
947		rscreen->has_streamout = rscreen->info.drm_minor >= 14;
948		break;
949	}
950
951	if (r600_init_tiling(rscreen)) {
952		FREE(rscreen);
953		return NULL;
954	}
955
956	rscreen->screen.destroy = r600_destroy_screen;
957	rscreen->screen.get_name = r600_get_name;
958	rscreen->screen.get_vendor = r600_get_vendor;
959	rscreen->screen.get_param = r600_get_param;
960	rscreen->screen.get_shader_param = r600_get_shader_param;
961	rscreen->screen.get_paramf = r600_get_paramf;
962	rscreen->screen.get_video_param = r600_get_video_param;
963	rscreen->screen.get_compute_param = r600_get_compute_param;
964	rscreen->screen.get_timestamp = r600_get_timestamp;
965
966	if (rscreen->chip_class >= EVERGREEN) {
967		rscreen->screen.is_format_supported = evergreen_is_format_supported;
968	} else {
969		rscreen->screen.is_format_supported = r600_is_format_supported;
970	}
971	rscreen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
972	rscreen->screen.context_create = r600_create_context;
973	rscreen->screen.fence_reference = r600_fence_reference;
974	rscreen->screen.fence_signalled = r600_fence_signalled;
975	rscreen->screen.fence_finish = r600_fence_finish;
976	r600_init_screen_resource_functions(&rscreen->screen);
977
978	util_format_s3tc_init();
979
980	rscreen->fences.bo = NULL;
981	rscreen->fences.data = NULL;
982	rscreen->fences.next_index = 0;
983	LIST_INITHEAD(&rscreen->fences.pool);
984	LIST_INITHEAD(&rscreen->fences.blocks);
985	pipe_mutex_init(rscreen->fences.mutex);
986
987	rscreen->global_pool = compute_memory_pool_new(rscreen);
988
989	return &rscreen->screen;
990}
991