1/*
2 * Copyright © 2006,2008,2011 Intel Corporation
3 * Copyright © 2007 Red Hat, Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 * Authors:
25 *    Wang Zhenyu <zhenyu.z.wang@sna.com>
26 *    Eric Anholt <eric@anholt.net>
27 *    Carl Worth <cworth@redhat.com>
28 *    Keith Packard <keithp@keithp.com>
29 *    Chris Wilson <chris@chris-wilson.co.uk>
30 *
31 */
32
33#ifdef HAVE_CONFIG_H
34#include "config.h"
35#endif
36
37#include "sna.h"
38#include "sna_reg.h"
39#include "sna_render.h"
40#include "sna_render_inline.h"
41#include "sna_video.h"
42
43#include "brw/brw.h"
44#include "gen6_render.h"
45#include "gen6_common.h"
46#include "gen4_common.h"
47#include "gen4_source.h"
48#include "gen4_vertex.h"
49
50#define ALWAYS_INVALIDATE 0
51#define ALWAYS_FLUSH 0
52#define ALWAYS_STALL 0
53
54#define NO_COMPOSITE 0
55#define NO_COMPOSITE_SPANS 0
56#define NO_COPY 0
57#define NO_COPY_BOXES 0
58#define NO_FILL 0
59#define NO_FILL_BOXES 0
60#define NO_FILL_ONE 0
61#define NO_FILL_CLEAR 0
62
63#define USE_8_PIXEL_DISPATCH 1
64#define USE_16_PIXEL_DISPATCH 1
65#define USE_32_PIXEL_DISPATCH 0
66
67#if !USE_8_PIXEL_DISPATCH && !USE_16_PIXEL_DISPATCH && !USE_32_PIXEL_DISPATCH
68#error "Must select at least 8, 16 or 32 pixel dispatch"
69#endif
70
71#define GEN6_MAX_SIZE 8192
72
73struct gt_info {
74	const char *name;
75	int max_vs_threads;
76	int max_gs_threads;
77	int max_wm_threads;
78	struct {
79		int size;
80		int max_vs_entries;
81		int max_gs_entries;
82	} urb;
83	int gt;
84};
85
86static const struct gt_info gt1_info = {
87	.name = "Sandybridge (gen6, gt1)",
88	.max_vs_threads = 24,
89	.max_gs_threads = 21,
90	.max_wm_threads = 40,
91	.urb = { 32, 256, 256 },
92	.gt = 1,
93};
94
95static const struct gt_info gt2_info = {
96	.name = "Sandybridge (gen6, gt2)",
97	.max_vs_threads = 60,
98	.max_gs_threads = 60,
99	.max_wm_threads = 80,
100	.urb = { 64, 256, 256 },
101	.gt = 2,
102};
103
104static const uint32_t ps_kernel_packed[][4] = {
105#include "exa_wm_src_affine.g6b"
106#include "exa_wm_src_sample_argb.g6b"
107#include "exa_wm_yuv_rgb.g6b"
108#include "exa_wm_write.g6b"
109};
110
111static const uint32_t ps_kernel_planar[][4] = {
112#include "exa_wm_src_affine.g6b"
113#include "exa_wm_src_sample_planar.g6b"
114#include "exa_wm_yuv_rgb.g6b"
115#include "exa_wm_write.g6b"
116};
117
118#define NOKERNEL(kernel_enum, func, ns) \
119    [GEN6_WM_KERNEL_##kernel_enum] = {#kernel_enum, func, 0, ns}
120#define KERNEL(kernel_enum, kernel, ns) \
121    [GEN6_WM_KERNEL_##kernel_enum] = {#kernel_enum, kernel, sizeof(kernel), ns}
122
123static const struct wm_kernel_info {
124	const char *name;
125	const void *data;
126	unsigned int size;
127	unsigned int num_surfaces;
128} wm_kernels[] = {
129	NOKERNEL(NOMASK, brw_wm_kernel__affine, 2),
130	NOKERNEL(NOMASK_P, brw_wm_kernel__projective, 2),
131
132	NOKERNEL(MASK, brw_wm_kernel__affine_mask, 3),
133	NOKERNEL(MASK_P, brw_wm_kernel__projective_mask, 3),
134
135	NOKERNEL(MASKCA, brw_wm_kernel__affine_mask_ca, 3),
136	NOKERNEL(MASKCA_P, brw_wm_kernel__projective_mask_ca, 3),
137
138	NOKERNEL(MASKSA, brw_wm_kernel__affine_mask_sa, 3),
139	NOKERNEL(MASKSA_P, brw_wm_kernel__projective_mask_sa, 3),
140
141	NOKERNEL(OPACITY, brw_wm_kernel__affine_opacity, 2),
142	NOKERNEL(OPACITY_P, brw_wm_kernel__projective_opacity, 2),
143
144	KERNEL(VIDEO_PLANAR, ps_kernel_planar, 7),
145	KERNEL(VIDEO_PACKED, ps_kernel_packed, 2),
146};
147#undef KERNEL
148
149static const struct blendinfo {
150	bool src_alpha;
151	uint32_t src_blend;
152	uint32_t dst_blend;
153} gen6_blend_op[] = {
154	/* Clear */	{0, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_ZERO},
155	/* Src */	{0, GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ZERO},
156	/* Dst */	{0, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_ONE},
157	/* Over */	{1, GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_INV_SRC_ALPHA},
158	/* OverReverse */ {0, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_ONE},
159	/* In */	{0, GEN6_BLENDFACTOR_DST_ALPHA, GEN6_BLENDFACTOR_ZERO},
160	/* InReverse */	{1, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_SRC_ALPHA},
161	/* Out */	{0, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_ZERO},
162	/* OutReverse */ {1, GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_INV_SRC_ALPHA},
163	/* Atop */	{1, GEN6_BLENDFACTOR_DST_ALPHA, GEN6_BLENDFACTOR_INV_SRC_ALPHA},
164	/* AtopReverse */ {1, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_SRC_ALPHA},
165	/* Xor */	{1, GEN6_BLENDFACTOR_INV_DST_ALPHA, GEN6_BLENDFACTOR_INV_SRC_ALPHA},
166	/* Add */	{0, GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ONE},
167};
168
169/**
170 * Highest-valued BLENDFACTOR used in gen6_blend_op.
171 *
172 * This leaves out GEN6_BLENDFACTOR_INV_DST_COLOR,
173 * GEN6_BLENDFACTOR_INV_CONST_{COLOR,ALPHA},
174 * GEN6_BLENDFACTOR_INV_SRC1_{COLOR,ALPHA}
175 */
176#define GEN6_BLENDFACTOR_COUNT (GEN6_BLENDFACTOR_INV_DST_ALPHA + 1)
177
178#define GEN6_BLEND_STATE_PADDED_SIZE	ALIGN(sizeof(struct gen6_blend_state), 64)
179
180#define BLEND_OFFSET(s, d) \
181	(((s) * GEN6_BLENDFACTOR_COUNT + (d)) * GEN6_BLEND_STATE_PADDED_SIZE)
182
183#define NO_BLEND BLEND_OFFSET(GEN6_BLENDFACTOR_ONE, GEN6_BLENDFACTOR_ZERO)
184#define CLEAR BLEND_OFFSET(GEN6_BLENDFACTOR_ZERO, GEN6_BLENDFACTOR_ZERO)
185
186#define SAMPLER_OFFSET(sf, se, mf, me) \
187	(((((sf) * EXTEND_COUNT + (se)) * FILTER_COUNT + (mf)) * EXTEND_COUNT + (me) + 2) * 2 * sizeof(struct gen6_sampler_state))
188
189#define VERTEX_2s2s 0
190
191#define COPY_SAMPLER 0
192#define COPY_VERTEX VERTEX_2s2s
193#define COPY_FLAGS(a) GEN6_SET_FLAGS(COPY_SAMPLER, (a) == GXcopy ? NO_BLEND : CLEAR, GEN6_WM_KERNEL_NOMASK, COPY_VERTEX)
194
195#define FILL_SAMPLER (2 * sizeof(struct gen6_sampler_state))
196#define FILL_VERTEX VERTEX_2s2s
197#define FILL_FLAGS(op, format) GEN6_SET_FLAGS(FILL_SAMPLER, gen6_get_blend((op), false, (format)), GEN6_WM_KERNEL_NOMASK, FILL_VERTEX)
198#define FILL_FLAGS_NOBLEND GEN6_SET_FLAGS(FILL_SAMPLER, NO_BLEND, GEN6_WM_KERNEL_NOMASK, FILL_VERTEX)
199
200#define GEN6_SAMPLER(f) (((f) >> 16) & 0xfff0)
201#define GEN6_BLEND(f) (((f) >> 0) & 0xfff0)
202#define GEN6_KERNEL(f) (((f) >> 16) & 0xf)
203#define GEN6_VERTEX(f) (((f) >> 0) & 0xf)
204#define GEN6_SET_FLAGS(S, B, K, V)  (((S) | (K)) << 16 | ((B) | (V)))
205
206#define OUT_BATCH(v) batch_emit(sna, v)
207#define OUT_VERTEX(x,y) vertex_emit_2s(sna, x,y)
208#define OUT_VERTEX_F(v) vertex_emit(sna, v)
209
210static inline bool too_large(int width, int height)
211{
212	return width > GEN6_MAX_SIZE || height > GEN6_MAX_SIZE;
213}
214
215static uint32_t gen6_get_blend(int op,
216			       bool has_component_alpha,
217			       uint32_t dst_format)
218{
219	uint32_t src, dst;
220
221	src = gen6_blend_op[op].src_blend;
222	dst = gen6_blend_op[op].dst_blend;
223
224	/* If there's no dst alpha channel, adjust the blend op so that
225	 * we'll treat it always as 1.
226	 */
227	if (PICT_FORMAT_A(dst_format) == 0) {
228		if (src == GEN6_BLENDFACTOR_DST_ALPHA)
229			src = GEN6_BLENDFACTOR_ONE;
230		else if (src == GEN6_BLENDFACTOR_INV_DST_ALPHA)
231			src = GEN6_BLENDFACTOR_ZERO;
232	}
233
234	/* If the source alpha is being used, then we should only be in a
235	 * case where the source blend factor is 0, and the source blend
236	 * value is the mask channels multiplied by the source picture's alpha.
237	 */
238	if (has_component_alpha && gen6_blend_op[op].src_alpha) {
239		if (dst == GEN6_BLENDFACTOR_SRC_ALPHA)
240			dst = GEN6_BLENDFACTOR_SRC_COLOR;
241		else if (dst == GEN6_BLENDFACTOR_INV_SRC_ALPHA)
242			dst = GEN6_BLENDFACTOR_INV_SRC_COLOR;
243	}
244
245	DBG(("blend op=%d, dst=%x [A=%d] => src=%d, dst=%d => offset=%x\n",
246	     op, dst_format, PICT_FORMAT_A(dst_format),
247	     src, dst, (int)BLEND_OFFSET(src, dst)));
248	return BLEND_OFFSET(src, dst);
249}
250
251static uint32_t gen6_get_card_format(PictFormat format)
252{
253	switch (format) {
254	default:
255		return -1;
256	case PICT_a8r8g8b8:
257		return GEN6_SURFACEFORMAT_B8G8R8A8_UNORM;
258	case PICT_x8r8g8b8:
259		return GEN6_SURFACEFORMAT_B8G8R8X8_UNORM;
260	case PICT_a8b8g8r8:
261		return GEN6_SURFACEFORMAT_R8G8B8A8_UNORM;
262	case PICT_x8b8g8r8:
263		return GEN6_SURFACEFORMAT_R8G8B8X8_UNORM;
264#ifdef PICT_a2r10g10b10
265	case PICT_a2r10g10b10:
266		return GEN6_SURFACEFORMAT_B10G10R10A2_UNORM;
267	case PICT_x2r10g10b10:
268		return GEN6_SURFACEFORMAT_B10G10R10X2_UNORM;
269#endif
270	case PICT_r8g8b8:
271		return GEN6_SURFACEFORMAT_R8G8B8_UNORM;
272	case PICT_r5g6b5:
273		return GEN6_SURFACEFORMAT_B5G6R5_UNORM;
274	case PICT_a1r5g5b5:
275		return GEN6_SURFACEFORMAT_B5G5R5A1_UNORM;
276	case PICT_a8:
277		return GEN6_SURFACEFORMAT_A8_UNORM;
278	case PICT_a4r4g4b4:
279		return GEN6_SURFACEFORMAT_B4G4R4A4_UNORM;
280	}
281}
282
283static uint32_t gen6_get_dest_format(PictFormat format)
284{
285	switch (format) {
286	default:
287		return -1;
288	case PICT_a8r8g8b8:
289	case PICT_x8r8g8b8:
290		return GEN6_SURFACEFORMAT_B8G8R8A8_UNORM;
291	case PICT_a8b8g8r8:
292	case PICT_x8b8g8r8:
293		return GEN6_SURFACEFORMAT_R8G8B8A8_UNORM;
294#ifdef PICT_a2r10g10b10
295	case PICT_a2r10g10b10:
296	case PICT_x2r10g10b10:
297		return GEN6_SURFACEFORMAT_B10G10R10A2_UNORM;
298#endif
299	case PICT_r5g6b5:
300		return GEN6_SURFACEFORMAT_B5G6R5_UNORM;
301	case PICT_x1r5g5b5:
302	case PICT_a1r5g5b5:
303		return GEN6_SURFACEFORMAT_B5G5R5A1_UNORM;
304	case PICT_a8:
305		return GEN6_SURFACEFORMAT_A8_UNORM;
306	case PICT_a4r4g4b4:
307	case PICT_x4r4g4b4:
308		return GEN6_SURFACEFORMAT_B4G4R4A4_UNORM;
309	}
310}
311
312static bool gen6_check_dst_format(PictFormat format)
313{
314	if (gen6_get_dest_format(format) != -1)
315		return true;
316
317	DBG(("%s: unhandled format: %x\n", __FUNCTION__, (int)format));
318	return false;
319}
320
321static bool gen6_check_format(uint32_t format)
322{
323	if (gen6_get_card_format(format) != -1)
324		return true;
325
326	DBG(("%s: unhandled format: %x\n", __FUNCTION__, (int)format));
327	return false;
328}
329
330static uint32_t gen6_filter(uint32_t filter)
331{
332	switch (filter) {
333	default:
334		assert(0);
335	case PictFilterNearest:
336		return SAMPLER_FILTER_NEAREST;
337	case PictFilterBilinear:
338		return SAMPLER_FILTER_BILINEAR;
339	}
340}
341
342static uint32_t gen6_check_filter(PicturePtr picture)
343{
344	switch (picture->filter) {
345	case PictFilterNearest:
346	case PictFilterBilinear:
347		return true;
348	default:
349		return false;
350	}
351}
352
353static uint32_t gen6_repeat(uint32_t repeat)
354{
355	switch (repeat) {
356	default:
357		assert(0);
358	case RepeatNone:
359		return SAMPLER_EXTEND_NONE;
360	case RepeatNormal:
361		return SAMPLER_EXTEND_REPEAT;
362	case RepeatPad:
363		return SAMPLER_EXTEND_PAD;
364	case RepeatReflect:
365		return SAMPLER_EXTEND_REFLECT;
366	}
367}
368
369static bool gen6_check_repeat(PicturePtr picture)
370{
371	if (!picture->repeat)
372		return true;
373
374	switch (picture->repeatType) {
375	case RepeatNone:
376	case RepeatNormal:
377	case RepeatPad:
378	case RepeatReflect:
379		return true;
380	default:
381		return false;
382	}
383}
384
385static int
386gen6_choose_composite_kernel(int op, bool has_mask, bool is_ca, bool is_affine)
387{
388	int base;
389
390	if (has_mask) {
391		if (is_ca) {
392			if (gen6_blend_op[op].src_alpha)
393				base = GEN6_WM_KERNEL_MASKSA;
394			else
395				base = GEN6_WM_KERNEL_MASKCA;
396		} else
397			base = GEN6_WM_KERNEL_MASK;
398	} else
399		base = GEN6_WM_KERNEL_NOMASK;
400
401	return base + !is_affine;
402}
403
404inline static void
405gen6_emit_pipe_invalidate(struct sna *sna)
406{
407	OUT_BATCH(GEN6_PIPE_CONTROL | (4 - 2));
408	OUT_BATCH(GEN6_PIPE_CONTROL_WC_FLUSH |
409		  GEN6_PIPE_CONTROL_TC_FLUSH |
410		  GEN6_PIPE_CONTROL_CS_STALL);
411	OUT_BATCH(0);
412	OUT_BATCH(0);
413}
414
415inline static void
416gen6_emit_pipe_flush(struct sna *sna, bool need_stall)
417{
418	unsigned stall;
419
420	stall = 0;
421	if (need_stall)
422		stall = GEN6_PIPE_CONTROL_CS_STALL;
423
424	OUT_BATCH(GEN6_PIPE_CONTROL | (4 - 2));
425	OUT_BATCH(GEN6_PIPE_CONTROL_WC_FLUSH | stall);
426	OUT_BATCH(0);
427	OUT_BATCH(0);
428}
429
430inline static void
431gen6_emit_pipe_stall(struct sna *sna)
432{
433	OUT_BATCH(GEN6_PIPE_CONTROL | (4 - 2));
434	OUT_BATCH(GEN6_PIPE_CONTROL_CS_STALL |
435		  GEN6_PIPE_CONTROL_STALL_AT_SCOREBOARD);
436	OUT_BATCH(0);
437	OUT_BATCH(0);
438}
439
440static void
441gen6_emit_urb(struct sna *sna)
442{
443	OUT_BATCH(GEN6_3DSTATE_URB | (3 - 2));
444	OUT_BATCH(((1 - 1) << GEN6_3DSTATE_URB_VS_SIZE_SHIFT) |
445		  (sna->render_state.gen6.info->urb.max_vs_entries << GEN6_3DSTATE_URB_VS_ENTRIES_SHIFT)); /* at least 24 on GEN6 */
446	OUT_BATCH((0 << GEN6_3DSTATE_URB_GS_SIZE_SHIFT) |
447		  (0 << GEN6_3DSTATE_URB_GS_ENTRIES_SHIFT)); /* no GS thread */
448}
449
450static void
451gen6_emit_state_base_address(struct sna *sna)
452{
453	OUT_BATCH(GEN6_STATE_BASE_ADDRESS | (10 - 2));
454	OUT_BATCH(0); /* general */
455	OUT_BATCH(kgem_add_reloc(&sna->kgem, /* surface */
456				 sna->kgem.nbatch,
457				 NULL,
458				 I915_GEM_DOMAIN_INSTRUCTION << 16,
459				 BASE_ADDRESS_MODIFY));
460	OUT_BATCH(kgem_add_reloc(&sna->kgem, /* instruction */
461				 sna->kgem.nbatch,
462				 sna->render_state.gen6.general_bo,
463				 I915_GEM_DOMAIN_INSTRUCTION << 16,
464				 BASE_ADDRESS_MODIFY));
465	OUT_BATCH(0); /* indirect */
466	OUT_BATCH(kgem_add_reloc(&sna->kgem,
467				 sna->kgem.nbatch,
468				 sna->render_state.gen6.general_bo,
469				 I915_GEM_DOMAIN_INSTRUCTION << 16,
470				 BASE_ADDRESS_MODIFY));
471
472	/* upper bounds, disable */
473	OUT_BATCH(0);
474	OUT_BATCH(BASE_ADDRESS_MODIFY);
475	OUT_BATCH(0);
476	OUT_BATCH(BASE_ADDRESS_MODIFY);
477}
478
479static void
480gen6_emit_viewports(struct sna *sna)
481{
482	OUT_BATCH(GEN6_3DSTATE_VIEWPORT_STATE_POINTERS |
483		  GEN6_3DSTATE_VIEWPORT_STATE_MODIFY_CC |
484		  (4 - 2));
485	OUT_BATCH(0);
486	OUT_BATCH(0);
487	OUT_BATCH(0);
488}
489
490static void
491gen6_emit_vs(struct sna *sna)
492{
493	/* disable VS constant buffer */
494	OUT_BATCH(GEN6_3DSTATE_CONSTANT_VS | (5 - 2));
495	OUT_BATCH(0);
496	OUT_BATCH(0);
497	OUT_BATCH(0);
498	OUT_BATCH(0);
499
500	OUT_BATCH(GEN6_3DSTATE_VS | (6 - 2));
501	OUT_BATCH(0); /* no VS kernel */
502	OUT_BATCH(0);
503	OUT_BATCH(0);
504	OUT_BATCH(0);
505	OUT_BATCH(0); /* pass-through */
506}
507
508static void
509gen6_emit_gs(struct sna *sna)
510{
511	/* disable GS constant buffer */
512	OUT_BATCH(GEN6_3DSTATE_CONSTANT_GS | (5 - 2));
513	OUT_BATCH(0);
514	OUT_BATCH(0);
515	OUT_BATCH(0);
516	OUT_BATCH(0);
517
518	OUT_BATCH(GEN6_3DSTATE_GS | (7 - 2));
519	OUT_BATCH(0); /* no GS kernel */
520	OUT_BATCH(0);
521	OUT_BATCH(0);
522	OUT_BATCH(0);
523	OUT_BATCH(0);
524	OUT_BATCH(0); /* pass-through */
525}
526
527static void
528gen6_emit_clip(struct sna *sna)
529{
530	OUT_BATCH(GEN6_3DSTATE_CLIP | (4 - 2));
531	OUT_BATCH(0);
532	OUT_BATCH(0); /* pass-through */
533	OUT_BATCH(0);
534}
535
536static void
537gen6_emit_wm_constants(struct sna *sna)
538{
539	/* disable WM constant buffer */
540	OUT_BATCH(GEN6_3DSTATE_CONSTANT_PS | (5 - 2));
541	OUT_BATCH(0);
542	OUT_BATCH(0);
543	OUT_BATCH(0);
544	OUT_BATCH(0);
545}
546
547static void
548gen6_emit_null_depth_buffer(struct sna *sna)
549{
550	OUT_BATCH(GEN6_3DSTATE_DEPTH_BUFFER | (7 - 2));
551	OUT_BATCH(GEN6_SURFACE_NULL << GEN6_3DSTATE_DEPTH_BUFFER_TYPE_SHIFT |
552		  GEN6_DEPTHFORMAT_D32_FLOAT << GEN6_3DSTATE_DEPTH_BUFFER_FORMAT_SHIFT);
553	OUT_BATCH(0);
554	OUT_BATCH(0);
555	OUT_BATCH(0);
556	OUT_BATCH(0);
557	OUT_BATCH(0);
558
559	OUT_BATCH(GEN6_3DSTATE_CLEAR_PARAMS | (2 - 2));
560	OUT_BATCH(0);
561}
562
563static void
564gen6_emit_invariant(struct sna *sna)
565{
566	OUT_BATCH(GEN6_PIPELINE_SELECT | PIPELINE_SELECT_3D);
567
568	OUT_BATCH(GEN6_3DSTATE_MULTISAMPLE | (3 - 2));
569	OUT_BATCH(GEN6_3DSTATE_MULTISAMPLE_PIXEL_LOCATION_CENTER |
570		  GEN6_3DSTATE_MULTISAMPLE_NUMSAMPLES_1); /* 1 sample/pixel */
571	OUT_BATCH(0);
572
573	OUT_BATCH(GEN6_3DSTATE_SAMPLE_MASK | (2 - 2));
574	OUT_BATCH(1);
575
576	gen6_emit_urb(sna);
577
578	gen6_emit_state_base_address(sna);
579
580	gen6_emit_viewports(sna);
581	gen6_emit_vs(sna);
582	gen6_emit_gs(sna);
583	gen6_emit_clip(sna);
584	gen6_emit_wm_constants(sna);
585	gen6_emit_null_depth_buffer(sna);
586
587	sna->render_state.gen6.needs_invariant = false;
588}
589
590static void
591gen6_emit_cc(struct sna *sna, int blend)
592{
593	struct gen6_render_state *render = &sna->render_state.gen6;
594
595	if (render->blend == blend)
596		return;
597
598	DBG(("%s: blend = %x\n", __FUNCTION__, blend));
599
600	OUT_BATCH(GEN6_3DSTATE_CC_STATE_POINTERS | (4 - 2));
601	OUT_BATCH((render->cc_blend + blend) | 1);
602	if (render->blend == (unsigned)-1) {
603		OUT_BATCH(1);
604		OUT_BATCH(1);
605	} else {
606		OUT_BATCH(0);
607		OUT_BATCH(0);
608	}
609
610	render->blend = blend;
611}
612
613static void
614gen6_emit_sampler(struct sna *sna, uint32_t state)
615{
616	if (sna->render_state.gen6.samplers == state)
617		return;
618
619	sna->render_state.gen6.samplers = state;
620
621	DBG(("%s: sampler = %x\n", __FUNCTION__, state));
622
623	OUT_BATCH(GEN6_3DSTATE_SAMPLER_STATE_POINTERS |
624		  GEN6_3DSTATE_SAMPLER_STATE_MODIFY_PS |
625		  (4 - 2));
626	OUT_BATCH(0); /* VS */
627	OUT_BATCH(0); /* GS */
628	OUT_BATCH(sna->render_state.gen6.wm_state + state);
629}
630
631static void
632gen6_emit_sf(struct sna *sna, bool has_mask)
633{
634	int num_sf_outputs = has_mask ? 2 : 1;
635
636	if (sna->render_state.gen6.num_sf_outputs == num_sf_outputs)
637		return;
638
639	DBG(("%s: num_sf_outputs=%d, read_length=%d, read_offset=%d\n",
640	     __FUNCTION__, num_sf_outputs, 1, 0));
641
642	sna->render_state.gen6.num_sf_outputs = num_sf_outputs;
643
644	OUT_BATCH(GEN6_3DSTATE_SF | (20 - 2));
645	OUT_BATCH(num_sf_outputs << GEN6_3DSTATE_SF_NUM_OUTPUTS_SHIFT |
646		  1 << GEN6_3DSTATE_SF_URB_ENTRY_READ_LENGTH_SHIFT |
647		  1 << GEN6_3DSTATE_SF_URB_ENTRY_READ_OFFSET_SHIFT);
648	OUT_BATCH(0);
649	OUT_BATCH(GEN6_3DSTATE_SF_CULL_NONE);
650	OUT_BATCH(2 << GEN6_3DSTATE_SF_TRIFAN_PROVOKE_SHIFT); /* DW4 */
651	OUT_BATCH(0);
652	OUT_BATCH(0);
653	OUT_BATCH(0);
654	OUT_BATCH(0);
655	OUT_BATCH(0); /* DW9 */
656	OUT_BATCH(0);
657	OUT_BATCH(0);
658	OUT_BATCH(0);
659	OUT_BATCH(0);
660	OUT_BATCH(0); /* DW14 */
661	OUT_BATCH(0);
662	OUT_BATCH(0);
663	OUT_BATCH(0);
664	OUT_BATCH(0);
665	OUT_BATCH(0); /* DW19 */
666}
667
668static void
669gen6_emit_wm(struct sna *sna, unsigned int kernel, bool has_mask)
670{
671	const uint32_t *kernels;
672
673	if (sna->render_state.gen6.kernel == kernel)
674		return;
675
676	sna->render_state.gen6.kernel = kernel;
677	kernels = sna->render_state.gen6.wm_kernel[kernel];
678
679	DBG(("%s: switching to %s, num_surfaces=%d (8-pixel? %d, 16-pixel? %d,32-pixel? %d)\n",
680	     __FUNCTION__,
681	     wm_kernels[kernel].name, wm_kernels[kernel].num_surfaces,
682	    kernels[0], kernels[1], kernels[2]));
683
684	OUT_BATCH(GEN6_3DSTATE_WM | (9 - 2));
685	OUT_BATCH(kernels[0] ?: kernels[1] ?: kernels[2]);
686	OUT_BATCH(1 << GEN6_3DSTATE_WM_SAMPLER_COUNT_SHIFT |
687		  wm_kernels[kernel].num_surfaces << GEN6_3DSTATE_WM_BINDING_TABLE_ENTRY_COUNT_SHIFT);
688	OUT_BATCH(0); /* scratch space */
689	OUT_BATCH((kernels[0] ? 4 : kernels[1] ? 6 : 8) << GEN6_3DSTATE_WM_DISPATCH_0_START_GRF_SHIFT |
690		  8 << GEN6_3DSTATE_WM_DISPATCH_1_START_GRF_SHIFT |
691		  6 << GEN6_3DSTATE_WM_DISPATCH_2_START_GRF_SHIFT);
692	OUT_BATCH((sna->render_state.gen6.info->max_wm_threads - 1) << GEN6_3DSTATE_WM_MAX_THREADS_SHIFT |
693		  (kernels[0] ? GEN6_3DSTATE_WM_8_DISPATCH_ENABLE : 0) |
694		  (kernels[1] ? GEN6_3DSTATE_WM_16_DISPATCH_ENABLE : 0) |
695		  (kernels[2] ? GEN6_3DSTATE_WM_32_DISPATCH_ENABLE : 0) |
696		  GEN6_3DSTATE_WM_DISPATCH_ENABLE);
697	OUT_BATCH((1 + has_mask) << GEN6_3DSTATE_WM_NUM_SF_OUTPUTS_SHIFT |
698		  GEN6_3DSTATE_WM_PERSPECTIVE_PIXEL_BARYCENTRIC);
699	OUT_BATCH(kernels[2]);
700	OUT_BATCH(kernels[1]);
701}
702
703static bool
704gen6_emit_binding_table(struct sna *sna, uint16_t offset)
705{
706	if (sna->render_state.gen6.surface_table == offset)
707		return false;
708
709	/* Binding table pointers */
710	OUT_BATCH(GEN6_3DSTATE_BINDING_TABLE_POINTERS |
711		  GEN6_3DSTATE_BINDING_TABLE_MODIFY_PS |
712		  (4 - 2));
713	OUT_BATCH(0);		/* vs */
714	OUT_BATCH(0);		/* gs */
715	/* Only the PS uses the binding table */
716	OUT_BATCH(offset*4);
717
718	sna->render_state.gen6.surface_table = offset;
719	return true;
720}
721
722static bool
723gen6_emit_drawing_rectangle(struct sna *sna,
724			    const struct sna_composite_op *op)
725{
726	uint32_t limit = (op->dst.height - 1) << 16 | (op->dst.width - 1);
727	uint32_t offset = (uint16_t)op->dst.y << 16 | (uint16_t)op->dst.x;
728
729	assert(!too_large(abs(op->dst.x), abs(op->dst.y)));
730	assert(!too_large(op->dst.width, op->dst.height));
731
732	if (sna->render_state.gen6.drawrect_limit  == limit &&
733	    sna->render_state.gen6.drawrect_offset == offset)
734		return true;
735
736	/* [DevSNB-C+{W/A}] Before any depth stall flush (including those
737	 * produced by non-pipelined state commands), software needs to first
738	 * send a PIPE_CONTROL with no bits set except Post-Sync Operation !=
739	 * 0.
740	 *
741	 * [Dev-SNB{W/A}]: Pipe-control with CS-stall bit set must be sent
742	 * BEFORE the pipe-control with a post-sync op and no write-cache
743	 * flushes.
744	 */
745	if (!sna->render_state.gen6.first_state_packet)
746		gen6_emit_pipe_stall(sna);
747
748	OUT_BATCH(GEN6_PIPE_CONTROL | (4 - 2));
749	OUT_BATCH(GEN6_PIPE_CONTROL_WRITE_TIME);
750	OUT_BATCH(kgem_add_reloc(&sna->kgem, sna->kgem.nbatch,
751				 sna->render_state.gen6.general_bo,
752				 I915_GEM_DOMAIN_INSTRUCTION << 16 |
753				 I915_GEM_DOMAIN_INSTRUCTION,
754				 64));
755	OUT_BATCH(0);
756
757	DBG(("%s: offset=(%d, %d), limit=(%d, %d)\n",
758	     __FUNCTION__, op->dst.x, op->dst.y, op->dst.width, op->dst.height));
759	OUT_BATCH(GEN6_3DSTATE_DRAWING_RECTANGLE | (4 - 2));
760	OUT_BATCH(0);
761	OUT_BATCH(limit);
762	OUT_BATCH(offset);
763
764	sna->render_state.gen6.drawrect_offset = offset;
765	sna->render_state.gen6.drawrect_limit = limit;
766	return false;
767}
768
769static void
770gen6_emit_vertex_elements(struct sna *sna,
771			  const struct sna_composite_op *op)
772{
773	/*
774	 * vertex data in vertex buffer
775	 *    position: (x, y)
776	 *    texture coordinate 0: (u0, v0) if (is_affine is true) else (u0, v0, w0)
777	 *    texture coordinate 1 if (has_mask is true): same as above
778	 */
779	struct gen6_render_state *render = &sna->render_state.gen6;
780	uint32_t src_format, dw;
781	int id = GEN6_VERTEX(op->u.gen6.flags);
782	bool has_mask;
783
784	DBG(("%s: setup id=%d\n", __FUNCTION__, id));
785
786	if (render->ve_id == id)
787		return;
788	render->ve_id = id;
789
790	/* The VUE layout
791	 *    dword 0-3: pad (0.0, 0.0, 0.0. 0.0)
792	 *    dword 4-7: position (x, y, 1.0, 1.0),
793	 *    dword 8-11: texture coordinate 0 (u0, v0, w0, 1.0)
794	 *    dword 12-15: texture coordinate 1 (u1, v1, w1, 1.0)
795	 *
796	 * dword 4-15 are fetched from vertex buffer
797	 */
798	has_mask = (id >> 2) != 0;
799	OUT_BATCH(GEN6_3DSTATE_VERTEX_ELEMENTS |
800		((2 * (3 + has_mask)) + 1 - 2));
801
802	OUT_BATCH(id << VE0_VERTEX_BUFFER_INDEX_SHIFT | VE0_VALID |
803		  GEN6_SURFACEFORMAT_R32G32B32A32_FLOAT << VE0_FORMAT_SHIFT |
804		  0 << VE0_OFFSET_SHIFT);
805	OUT_BATCH(GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_0_SHIFT |
806		  GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_1_SHIFT |
807		  GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT |
808		  GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_3_SHIFT);
809
810	/* x,y */
811	OUT_BATCH(id << VE0_VERTEX_BUFFER_INDEX_SHIFT | VE0_VALID |
812		  GEN6_SURFACEFORMAT_R16G16_SSCALED << VE0_FORMAT_SHIFT |
813		  0 << VE0_OFFSET_SHIFT);
814	OUT_BATCH(GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT |
815		  GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_1_SHIFT |
816		  GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT |
817		  GEN6_VFCOMPONENT_STORE_1_FLT << VE1_VFCOMPONENT_3_SHIFT);
818
819	/* u0, v0, w0 */
820	DBG(("%s: first channel %d floats, offset=4b\n", __FUNCTION__, id & 3));
821	dw = GEN6_VFCOMPONENT_STORE_1_FLT << VE1_VFCOMPONENT_3_SHIFT;
822	switch (id & 3) {
823	default:
824		assert(0);
825	case 0:
826		src_format = GEN6_SURFACEFORMAT_R16G16_SSCALED;
827		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
828		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_1_SHIFT;
829		dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT;
830		break;
831	case 1:
832		src_format = GEN6_SURFACEFORMAT_R32_FLOAT;
833		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
834		dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_1_SHIFT;
835		dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT;
836		break;
837	case 2:
838		src_format = GEN6_SURFACEFORMAT_R32G32_FLOAT;
839		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
840		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_1_SHIFT;
841		dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT;
842		break;
843	case 3:
844		src_format = GEN6_SURFACEFORMAT_R32G32B32_FLOAT;
845		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
846		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_1_SHIFT;
847		dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_2_SHIFT;
848		break;
849	}
850	OUT_BATCH(id << VE0_VERTEX_BUFFER_INDEX_SHIFT | VE0_VALID |
851		  src_format << VE0_FORMAT_SHIFT |
852		  4 << VE0_OFFSET_SHIFT);
853	OUT_BATCH(dw);
854
855	/* u1, v1, w1 */
856	if (has_mask) {
857		unsigned offset = 4 + ((id & 3) ?: 1) * sizeof(float);
858		DBG(("%s: second channel %d floats, offset=%db\n", __FUNCTION__, id >> 2, offset));
859		dw = GEN6_VFCOMPONENT_STORE_1_FLT << VE1_VFCOMPONENT_3_SHIFT;
860		switch (id >> 2) {
861		case 1:
862			src_format = GEN6_SURFACEFORMAT_R32_FLOAT;
863			dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
864			dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_1_SHIFT;
865			dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT;
866			break;
867		default:
868			assert(0);
869		case 2:
870			src_format = GEN6_SURFACEFORMAT_R32G32_FLOAT;
871			dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
872			dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_1_SHIFT;
873			dw |= GEN6_VFCOMPONENT_STORE_0 << VE1_VFCOMPONENT_2_SHIFT;
874			break;
875		case 3:
876			src_format = GEN6_SURFACEFORMAT_R32G32B32_FLOAT;
877			dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_0_SHIFT;
878			dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_1_SHIFT;
879			dw |= GEN6_VFCOMPONENT_STORE_SRC << VE1_VFCOMPONENT_2_SHIFT;
880			break;
881		}
882		OUT_BATCH(id << VE0_VERTEX_BUFFER_INDEX_SHIFT | VE0_VALID |
883			  src_format << VE0_FORMAT_SHIFT |
884			  offset << VE0_OFFSET_SHIFT);
885		OUT_BATCH(dw);
886	}
887}
888
889static void
890gen6_emit_state(struct sna *sna,
891		const struct sna_composite_op *op,
892		uint16_t wm_binding_table)
893{
894	bool need_invalidate;
895	bool need_flush;
896	bool need_stall;
897
898	assert(op->dst.bo->exec);
899
900	need_flush = wm_binding_table & 1;
901	if (ALWAYS_FLUSH)
902		need_flush = true;
903
904	wm_binding_table &= ~1;
905	need_stall = sna->render_state.gen6.surface_table != wm_binding_table;
906	if (ALWAYS_STALL)
907		need_stall = true;
908
909	need_invalidate = kgem_bo_is_dirty(op->src.bo) || kgem_bo_is_dirty(op->mask.bo);
910	if (ALWAYS_INVALIDATE)
911		need_invalidate = true;
912
913	if (need_invalidate) {
914		gen6_emit_pipe_invalidate(sna);
915		kgem_clear_dirty(&sna->kgem);
916		assert(op->dst.bo->exec);
917		kgem_bo_mark_dirty(op->dst.bo);
918
919		need_flush = false;
920		need_stall = false;
921		sna->render_state.gen6.first_state_packet = true;
922	}
923	if (need_flush) {
924		gen6_emit_pipe_flush(sna, need_stall);
925		need_stall = false;
926		sna->render_state.gen6.first_state_packet = true;
927	}
928
929	need_stall &= gen6_emit_drawing_rectangle(sna, op);
930	if (need_stall)
931		gen6_emit_pipe_stall(sna);
932
933	gen6_emit_cc(sna, GEN6_BLEND(op->u.gen6.flags));
934	gen6_emit_sampler(sna, GEN6_SAMPLER(op->u.gen6.flags));
935	gen6_emit_sf(sna, GEN6_VERTEX(op->u.gen6.flags) >> 2);
936	gen6_emit_wm(sna, GEN6_KERNEL(op->u.gen6.flags), GEN6_VERTEX(op->u.gen6.flags) >> 2);
937	gen6_emit_vertex_elements(sna, op);
938	gen6_emit_binding_table(sna, wm_binding_table);
939
940	sna->render_state.gen6.first_state_packet = false;
941}
942
943static bool gen6_magic_ca_pass(struct sna *sna,
944			       const struct sna_composite_op *op)
945{
946	struct gen6_render_state *state = &sna->render_state.gen6;
947
948	if (!op->need_magic_ca_pass)
949		return false;
950
951	DBG(("%s: CA fixup (%d -> %d)\n", __FUNCTION__,
952	     sna->render.vertex_start, sna->render.vertex_index));
953
954	gen6_emit_pipe_stall(sna);
955
956	gen6_emit_cc(sna, gen6_get_blend(PictOpAdd, true, op->dst.format));
957	gen6_emit_wm(sna,
958		     gen6_choose_composite_kernel(PictOpAdd,
959						  true, true,
960						  op->is_affine),
961		     true);
962
963	OUT_BATCH(GEN6_3DPRIMITIVE |
964		  GEN6_3DPRIMITIVE_VERTEX_SEQUENTIAL |
965		  _3DPRIM_RECTLIST << GEN6_3DPRIMITIVE_TOPOLOGY_SHIFT |
966		  0 << 9 |
967		  4);
968	OUT_BATCH(sna->render.vertex_index - sna->render.vertex_start);
969	OUT_BATCH(sna->render.vertex_start);
970	OUT_BATCH(1);	/* single instance */
971	OUT_BATCH(0);	/* start instance location */
972	OUT_BATCH(0);	/* index buffer offset, ignored */
973
974	state->last_primitive = sna->kgem.nbatch;
975	return true;
976}
977
978typedef struct gen6_surface_state_padded {
979	struct gen6_surface_state state;
980	char pad[32 - sizeof(struct gen6_surface_state)];
981} gen6_surface_state_padded;
982
983static void null_create(struct sna_static_stream *stream)
984{
985	/* A bunch of zeros useful for legacy border color and depth-stencil */
986	sna_static_stream_map(stream, 64, 64);
987}
988
989static void scratch_create(struct sna_static_stream *stream)
990{
991	/* 64 bytes of scratch space for random writes, such as
992	 * the pipe-control w/a.
993	 */
994	sna_static_stream_map(stream, 64, 64);
995}
996
997static void
998sampler_state_init(struct gen6_sampler_state *sampler_state,
999		   sampler_filter_t filter,
1000		   sampler_extend_t extend)
1001{
1002	sampler_state->ss0.lod_preclamp = 1;	/* GL mode */
1003
1004	/* We use the legacy mode to get the semantics specified by
1005	 * the Render extension. */
1006	sampler_state->ss0.border_color_mode = GEN6_BORDER_COLOR_MODE_LEGACY;
1007
1008	switch (filter) {
1009	default:
1010	case SAMPLER_FILTER_NEAREST:
1011		sampler_state->ss0.min_filter = GEN6_MAPFILTER_NEAREST;
1012		sampler_state->ss0.mag_filter = GEN6_MAPFILTER_NEAREST;
1013		break;
1014	case SAMPLER_FILTER_BILINEAR:
1015		sampler_state->ss0.min_filter = GEN6_MAPFILTER_LINEAR;
1016		sampler_state->ss0.mag_filter = GEN6_MAPFILTER_LINEAR;
1017		break;
1018	}
1019
1020	switch (extend) {
1021	default:
1022	case SAMPLER_EXTEND_NONE:
1023		sampler_state->ss1.r_wrap_mode = GEN6_TEXCOORDMODE_CLAMP_BORDER;
1024		sampler_state->ss1.s_wrap_mode = GEN6_TEXCOORDMODE_CLAMP_BORDER;
1025		sampler_state->ss1.t_wrap_mode = GEN6_TEXCOORDMODE_CLAMP_BORDER;
1026		break;
1027	case SAMPLER_EXTEND_REPEAT:
1028		sampler_state->ss1.r_wrap_mode = GEN6_TEXCOORDMODE_WRAP;
1029		sampler_state->ss1.s_wrap_mode = GEN6_TEXCOORDMODE_WRAP;
1030		sampler_state->ss1.t_wrap_mode = GEN6_TEXCOORDMODE_WRAP;
1031		break;
1032	case SAMPLER_EXTEND_PAD:
1033		sampler_state->ss1.r_wrap_mode = GEN6_TEXCOORDMODE_CLAMP;
1034		sampler_state->ss1.s_wrap_mode = GEN6_TEXCOORDMODE_CLAMP;
1035		sampler_state->ss1.t_wrap_mode = GEN6_TEXCOORDMODE_CLAMP;
1036		break;
1037	case SAMPLER_EXTEND_REFLECT:
1038		sampler_state->ss1.r_wrap_mode = GEN6_TEXCOORDMODE_MIRROR;
1039		sampler_state->ss1.s_wrap_mode = GEN6_TEXCOORDMODE_MIRROR;
1040		sampler_state->ss1.t_wrap_mode = GEN6_TEXCOORDMODE_MIRROR;
1041		break;
1042	}
1043}
1044
1045static void
1046sampler_copy_init(struct gen6_sampler_state *ss)
1047{
1048	sampler_state_init(ss, SAMPLER_FILTER_NEAREST, SAMPLER_EXTEND_NONE);
1049	ss->ss3.non_normalized_coord = 1;
1050
1051	sampler_state_init(ss+1, SAMPLER_FILTER_NEAREST, SAMPLER_EXTEND_NONE);
1052}
1053
1054static void
1055sampler_fill_init(struct gen6_sampler_state *ss)
1056{
1057	sampler_state_init(ss, SAMPLER_FILTER_NEAREST, SAMPLER_EXTEND_REPEAT);
1058	ss->ss3.non_normalized_coord = 1;
1059
1060	sampler_state_init(ss+1, SAMPLER_FILTER_NEAREST, SAMPLER_EXTEND_NONE);
1061}
1062
1063static uint32_t
1064gen6_tiling_bits(uint32_t tiling)
1065{
1066	switch (tiling) {
1067	default: assert(0);
1068	case I915_TILING_NONE: return 0;
1069	case I915_TILING_X: return GEN6_SURFACE_TILED;
1070	case I915_TILING_Y: return GEN6_SURFACE_TILED | GEN6_SURFACE_TILED_Y;
1071	}
1072}
1073
1074/**
1075 * Sets up the common fields for a surface state buffer for the given
1076 * picture in the given surface state buffer.
1077 */
1078static int
1079gen6_bind_bo(struct sna *sna,
1080	     struct kgem_bo *bo,
1081	     uint32_t width,
1082	     uint32_t height,
1083	     uint32_t format,
1084	     bool is_dst)
1085{
1086	uint32_t *ss;
1087	uint32_t domains;
1088	uint16_t offset;
1089	uint32_t is_scanout = is_dst && bo->scanout;
1090
1091	/* After the first bind, we manage the cache domains within the batch */
1092	offset = kgem_bo_get_binding(bo, format | is_dst << 30 | is_scanout << 31);
1093	if (offset) {
1094		DBG(("[%x]  bo(handle=%d), format=%d, reuse %s binding\n",
1095		     offset, bo->handle, format,
1096		     is_dst ? "render" : "sampler"));
1097		assert(offset >= sna->kgem.surface);
1098		if (is_dst)
1099			kgem_bo_mark_dirty(bo);
1100		return offset * sizeof(uint32_t);
1101	}
1102
1103	offset = sna->kgem.surface -=
1104		sizeof(struct gen6_surface_state_padded) / sizeof(uint32_t);
1105	ss = sna->kgem.batch + offset;
1106	ss[0] = (GEN6_SURFACE_2D << GEN6_SURFACE_TYPE_SHIFT |
1107		 GEN6_SURFACE_BLEND_ENABLED |
1108		 format << GEN6_SURFACE_FORMAT_SHIFT);
1109	if (is_dst) {
1110		ss[0] |= GEN6_SURFACE_RC_READ_WRITE;
1111		domains = I915_GEM_DOMAIN_RENDER << 16 |I915_GEM_DOMAIN_RENDER;
1112	} else
1113		domains = I915_GEM_DOMAIN_SAMPLER << 16;
1114	ss[1] = kgem_add_reloc(&sna->kgem, offset + 1, bo, domains, 0);
1115	ss[2] = ((width - 1)  << GEN6_SURFACE_WIDTH_SHIFT |
1116		 (height - 1) << GEN6_SURFACE_HEIGHT_SHIFT);
1117	assert(bo->pitch <= (1 << 18));
1118	ss[3] = (gen6_tiling_bits(bo->tiling) |
1119		 (bo->pitch - 1) << GEN6_SURFACE_PITCH_SHIFT);
1120	ss[4] = 0;
1121	ss[5] = (is_scanout || bo->io) ? 0 : 3 << 16;
1122
1123	kgem_bo_set_binding(bo, format | is_dst << 30 | is_scanout << 31, offset);
1124
1125	DBG(("[%x] bind bo(handle=%d, addr=%d), format=%d, width=%d, height=%d, pitch=%d, tiling=%d -> %s\n",
1126	     offset, bo->handle, ss[1],
1127	     format, width, height, bo->pitch, bo->tiling,
1128	     domains & 0xffff ? "render" : "sampler"));
1129
1130	return offset * sizeof(uint32_t);
1131}
1132
1133static void gen6_emit_vertex_buffer(struct sna *sna,
1134				    const struct sna_composite_op *op)
1135{
1136	int id = GEN6_VERTEX(op->u.gen6.flags);
1137
1138	OUT_BATCH(GEN6_3DSTATE_VERTEX_BUFFERS | 3);
1139	OUT_BATCH(id << VB0_BUFFER_INDEX_SHIFT | VB0_VERTEXDATA |
1140		  4*op->floats_per_vertex << VB0_BUFFER_PITCH_SHIFT);
1141	sna->render.vertex_reloc[sna->render.nvertex_reloc++] = sna->kgem.nbatch;
1142	OUT_BATCH(0);
1143	OUT_BATCH(~0); /* max address: disabled */
1144	OUT_BATCH(0);
1145
1146	sna->render.vb_id |= 1 << id;
1147}
1148
1149static void gen6_emit_primitive(struct sna *sna)
1150{
1151	if (sna->kgem.nbatch == sna->render_state.gen6.last_primitive) {
1152		DBG(("%s: continuing previous primitive, start=%d, index=%d\n",
1153		     __FUNCTION__,
1154		     sna->render.vertex_start,
1155		     sna->render.vertex_index));
1156		sna->render.vertex_offset = sna->kgem.nbatch - 5;
1157		return;
1158	}
1159
1160	OUT_BATCH(GEN6_3DPRIMITIVE |
1161		  GEN6_3DPRIMITIVE_VERTEX_SEQUENTIAL |
1162		  _3DPRIM_RECTLIST << GEN6_3DPRIMITIVE_TOPOLOGY_SHIFT |
1163		  0 << 9 |
1164		  4);
1165	sna->render.vertex_offset = sna->kgem.nbatch;
1166	OUT_BATCH(0);	/* vertex count, to be filled in later */
1167	OUT_BATCH(sna->render.vertex_index);
1168	OUT_BATCH(1);	/* single instance */
1169	OUT_BATCH(0);	/* start instance location */
1170	OUT_BATCH(0);	/* index buffer offset, ignored */
1171	sna->render.vertex_start = sna->render.vertex_index;
1172	DBG(("%s: started new primitive: index=%d\n",
1173	     __FUNCTION__, sna->render.vertex_start));
1174
1175	sna->render_state.gen6.last_primitive = sna->kgem.nbatch;
1176}
1177
1178static bool gen6_rectangle_begin(struct sna *sna,
1179				 const struct sna_composite_op *op)
1180{
1181	int id = 1 << GEN6_VERTEX(op->u.gen6.flags);
1182	int ndwords;
1183
1184	if (sna_vertex_wait__locked(&sna->render) && sna->render.vertex_offset)
1185		return true;
1186
1187	ndwords = op->need_magic_ca_pass ? 60 : 6;
1188	if ((sna->render.vb_id & id) == 0)
1189		ndwords += 5;
1190	if (!kgem_check_batch(&sna->kgem, ndwords))
1191		return false;
1192
1193	if ((sna->render.vb_id & id) == 0)
1194		gen6_emit_vertex_buffer(sna, op);
1195
1196	gen6_emit_primitive(sna);
1197	return true;
1198}
1199
1200static int gen6_get_rectangles__flush(struct sna *sna,
1201				      const struct sna_composite_op *op)
1202{
1203	/* Preventing discarding new vbo after lock contention */
1204	if (sna_vertex_wait__locked(&sna->render)) {
1205		int rem = vertex_space(sna);
1206		if (rem > op->floats_per_rect)
1207			return rem;
1208	}
1209
1210	if (!kgem_check_batch(&sna->kgem, op->need_magic_ca_pass ? 65 : 5))
1211		return 0;
1212	if (!kgem_check_reloc_and_exec(&sna->kgem, 2))
1213		return 0;
1214
1215	if (sna->render.vertex_offset) {
1216		gen4_vertex_flush(sna);
1217		if (gen6_magic_ca_pass(sna, op)) {
1218			gen6_emit_pipe_stall(sna);
1219			gen6_emit_cc(sna, GEN6_BLEND(op->u.gen6.flags));
1220			gen6_emit_wm(sna,
1221				     GEN6_KERNEL(op->u.gen6.flags),
1222				     GEN6_VERTEX(op->u.gen6.flags) >> 2);
1223		}
1224	}
1225
1226	return gen4_vertex_finish(sna);
1227}
1228
1229inline static int gen6_get_rectangles(struct sna *sna,
1230				      const struct sna_composite_op *op,
1231				      int want,
1232				      void (*emit_state)(struct sna *, const struct sna_composite_op *op))
1233{
1234	int rem;
1235
1236	assert(want);
1237
1238start:
1239	rem = vertex_space(sna);
1240	if (unlikely(rem < op->floats_per_rect)) {
1241		DBG(("flushing vbo for %s: %d < %d\n",
1242		     __FUNCTION__, rem, op->floats_per_rect));
1243		rem = gen6_get_rectangles__flush(sna, op);
1244		if (unlikely(rem == 0))
1245			goto flush;
1246	}
1247
1248	if (unlikely(sna->render.vertex_offset == 0)) {
1249		if (!gen6_rectangle_begin(sna, op))
1250			goto flush;
1251		else
1252			goto start;
1253	}
1254
1255	assert(rem <= vertex_space(sna));
1256	assert(op->floats_per_rect <= rem);
1257	if (want > 1 && want * op->floats_per_rect > rem)
1258		want = rem / op->floats_per_rect;
1259
1260	assert(want > 0);
1261	sna->render.vertex_index += 3*want;
1262	return want;
1263
1264flush:
1265	if (sna->render.vertex_offset) {
1266		gen4_vertex_flush(sna);
1267		gen6_magic_ca_pass(sna, op);
1268	}
1269	sna_vertex_wait__locked(&sna->render);
1270	_kgem_submit(&sna->kgem);
1271	emit_state(sna, op);
1272	goto start;
1273}
1274
1275inline static uint32_t *gen6_composite_get_binding_table(struct sna *sna,
1276							 uint16_t *offset)
1277{
1278	uint32_t *table;
1279
1280	sna->kgem.surface -=
1281		sizeof(struct gen6_surface_state_padded) / sizeof(uint32_t);
1282	/* Clear all surplus entries to zero in case of prefetch */
1283	table = memset(sna->kgem.batch + sna->kgem.surface,
1284		       0, sizeof(struct gen6_surface_state_padded));
1285
1286	DBG(("%s(%x)\n", __FUNCTION__, 4*sna->kgem.surface));
1287
1288	*offset = sna->kgem.surface;
1289	return table;
1290}
1291
1292static bool
1293gen6_get_batch(struct sna *sna, const struct sna_composite_op *op)
1294{
1295	kgem_set_mode(&sna->kgem, KGEM_RENDER, op->dst.bo);
1296
1297	if (!kgem_check_batch_with_surfaces(&sna->kgem, 150, 4)) {
1298		DBG(("%s: flushing batch: %d < %d+%d\n",
1299		     __FUNCTION__, sna->kgem.surface - sna->kgem.nbatch,
1300		     150, 4*8));
1301		kgem_submit(&sna->kgem);
1302		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
1303	}
1304
1305	if (sna->render_state.gen6.needs_invariant)
1306		gen6_emit_invariant(sna);
1307
1308	return kgem_bo_is_dirty(op->dst.bo);
1309}
1310
1311static void gen6_emit_composite_state(struct sna *sna,
1312				      const struct sna_composite_op *op)
1313{
1314	uint32_t *binding_table;
1315	uint16_t offset;
1316	bool dirty;
1317
1318	dirty = gen6_get_batch(sna, op);
1319
1320	binding_table = gen6_composite_get_binding_table(sna, &offset);
1321
1322	binding_table[0] =
1323		gen6_bind_bo(sna,
1324			    op->dst.bo, op->dst.width, op->dst.height,
1325			    gen6_get_dest_format(op->dst.format),
1326			    true);
1327	binding_table[1] =
1328		gen6_bind_bo(sna,
1329			     op->src.bo, op->src.width, op->src.height,
1330			     op->src.card_format,
1331			     false);
1332	if (op->mask.bo) {
1333		binding_table[2] =
1334			gen6_bind_bo(sna,
1335				     op->mask.bo,
1336				     op->mask.width,
1337				     op->mask.height,
1338				     op->mask.card_format,
1339				     false);
1340	}
1341
1342	if (sna->kgem.surface == offset &&
1343	    *(uint64_t *)(sna->kgem.batch + sna->render_state.gen6.surface_table) == *(uint64_t*)binding_table &&
1344	    (op->mask.bo == NULL ||
1345	     sna->kgem.batch[sna->render_state.gen6.surface_table+2] == binding_table[2])) {
1346		sna->kgem.surface += sizeof(struct gen6_surface_state_padded) / sizeof(uint32_t);
1347		offset = sna->render_state.gen6.surface_table;
1348	}
1349
1350	gen6_emit_state(sna, op, offset | dirty);
1351}
1352
1353static void
1354gen6_align_vertex(struct sna *sna, const struct sna_composite_op *op)
1355{
1356	assert (sna->render.vertex_offset == 0);
1357	if (op->floats_per_vertex != sna->render_state.gen6.floats_per_vertex) {
1358		DBG(("aligning vertex: was %d, now %d floats per vertex\n",
1359		     sna->render_state.gen6.floats_per_vertex,
1360		     op->floats_per_vertex));
1361		gen4_vertex_align(sna, op);
1362		sna->render_state.gen6.floats_per_vertex = op->floats_per_vertex;
1363	}
1364	assert((sna->render.vertex_used % op->floats_per_vertex) == 0);
1365}
1366
1367fastcall static void
1368gen6_render_composite_blt(struct sna *sna,
1369			  const struct sna_composite_op *op,
1370			  const struct sna_composite_rectangles *r)
1371{
1372	gen6_get_rectangles(sna, op, 1, gen6_emit_composite_state);
1373	op->prim_emit(sna, op, r);
1374}
1375
1376fastcall static void
1377gen6_render_composite_box(struct sna *sna,
1378			  const struct sna_composite_op *op,
1379			  const BoxRec *box)
1380{
1381	struct sna_composite_rectangles r;
1382
1383	gen6_get_rectangles(sna, op, 1, gen6_emit_composite_state);
1384
1385	DBG(("  %s: (%d, %d), (%d, %d)\n",
1386	     __FUNCTION__,
1387	     box->x1, box->y1, box->x2, box->y2));
1388
1389	r.dst.x = box->x1;
1390	r.dst.y = box->y1;
1391	r.width  = box->x2 - box->x1;
1392	r.height = box->y2 - box->y1;
1393	r.src = r.mask = r.dst;
1394
1395	op->prim_emit(sna, op, &r);
1396}
1397
1398static void
1399gen6_render_composite_boxes__blt(struct sna *sna,
1400				 const struct sna_composite_op *op,
1401				 const BoxRec *box, int nbox)
1402{
1403	DBG(("composite_boxes(%d)\n", nbox));
1404
1405	do {
1406		int nbox_this_time;
1407
1408		nbox_this_time = gen6_get_rectangles(sna, op, nbox,
1409						     gen6_emit_composite_state);
1410		nbox -= nbox_this_time;
1411
1412		do {
1413			struct sna_composite_rectangles r;
1414
1415			DBG(("  %s: (%d, %d), (%d, %d)\n",
1416			     __FUNCTION__,
1417			     box->x1, box->y1, box->x2, box->y2));
1418
1419			r.dst.x = box->x1;
1420			r.dst.y = box->y1;
1421			r.width  = box->x2 - box->x1;
1422			r.height = box->y2 - box->y1;
1423			r.src = r.mask = r.dst;
1424
1425			op->prim_emit(sna, op, &r);
1426			box++;
1427		} while (--nbox_this_time);
1428	} while (nbox);
1429}
1430
1431static void
1432gen6_render_composite_boxes(struct sna *sna,
1433			    const struct sna_composite_op *op,
1434			    const BoxRec *box, int nbox)
1435{
1436	DBG(("%s: nbox=%d\n", __FUNCTION__, nbox));
1437
1438	do {
1439		int nbox_this_time;
1440		float *v;
1441
1442		nbox_this_time = gen6_get_rectangles(sna, op, nbox,
1443						     gen6_emit_composite_state);
1444		assert(nbox_this_time);
1445		nbox -= nbox_this_time;
1446
1447		v = sna->render.vertices + sna->render.vertex_used;
1448		sna->render.vertex_used += nbox_this_time * op->floats_per_rect;
1449
1450		op->emit_boxes(op, box, nbox_this_time, v);
1451		box += nbox_this_time;
1452	} while (nbox);
1453}
1454
1455static void
1456gen6_render_composite_boxes__thread(struct sna *sna,
1457				    const struct sna_composite_op *op,
1458				    const BoxRec *box, int nbox)
1459{
1460	DBG(("%s: nbox=%d\n", __FUNCTION__, nbox));
1461
1462	sna_vertex_lock(&sna->render);
1463	do {
1464		int nbox_this_time;
1465		float *v;
1466
1467		nbox_this_time = gen6_get_rectangles(sna, op, nbox,
1468						     gen6_emit_composite_state);
1469		assert(nbox_this_time);
1470		nbox -= nbox_this_time;
1471
1472		v = sna->render.vertices + sna->render.vertex_used;
1473		sna->render.vertex_used += nbox_this_time * op->floats_per_rect;
1474
1475		sna_vertex_acquire__locked(&sna->render);
1476		sna_vertex_unlock(&sna->render);
1477
1478		op->emit_boxes(op, box, nbox_this_time, v);
1479		box += nbox_this_time;
1480
1481		sna_vertex_lock(&sna->render);
1482		sna_vertex_release__locked(&sna->render);
1483	} while (nbox);
1484	sna_vertex_unlock(&sna->render);
1485}
1486
1487#ifndef MAX
1488#define MAX(a,b) ((a) > (b) ? (a) : (b))
1489#endif
1490
1491static uint32_t
1492gen6_composite_create_blend_state(struct sna_static_stream *stream)
1493{
1494	char *base, *ptr;
1495	int src, dst;
1496
1497	base = sna_static_stream_map(stream,
1498				     GEN6_BLENDFACTOR_COUNT * GEN6_BLENDFACTOR_COUNT * GEN6_BLEND_STATE_PADDED_SIZE,
1499				     64);
1500
1501	ptr = base;
1502	for (src = 0; src < GEN6_BLENDFACTOR_COUNT; src++) {
1503		for (dst= 0; dst < GEN6_BLENDFACTOR_COUNT; dst++) {
1504			struct gen6_blend_state *blend =
1505				(struct gen6_blend_state *)ptr;
1506
1507			blend->blend0.dest_blend_factor = dst;
1508			blend->blend0.source_blend_factor = src;
1509			blend->blend0.blend_func = GEN6_BLENDFUNCTION_ADD;
1510			blend->blend0.blend_enable =
1511				!(dst == GEN6_BLENDFACTOR_ZERO && src == GEN6_BLENDFACTOR_ONE);
1512
1513			blend->blend1.post_blend_clamp_enable = 1;
1514			blend->blend1.pre_blend_clamp_enable = 1;
1515
1516			ptr += GEN6_BLEND_STATE_PADDED_SIZE;
1517		}
1518	}
1519
1520	return sna_static_stream_offsetof(stream, base);
1521}
1522
1523static uint32_t gen6_bind_video_source(struct sna *sna,
1524				       struct kgem_bo *src_bo,
1525				       uint32_t src_offset,
1526				       int src_width,
1527				       int src_height,
1528				       int src_pitch,
1529				       uint32_t src_surf_format)
1530{
1531	struct gen6_surface_state *ss;
1532
1533	sna->kgem.surface -= sizeof(struct gen6_surface_state_padded) / sizeof(uint32_t);
1534
1535	ss = memset(sna->kgem.batch + sna->kgem.surface, 0, sizeof(*ss));
1536	ss->ss0.surface_type = GEN6_SURFACE_2D;
1537	ss->ss0.surface_format = src_surf_format;
1538
1539	ss->ss1.base_addr =
1540		kgem_add_reloc(&sna->kgem,
1541			       sna->kgem.surface + 1,
1542			       src_bo,
1543			       I915_GEM_DOMAIN_SAMPLER << 16,
1544			       src_offset);
1545
1546	ss->ss2.width  = src_width - 1;
1547	ss->ss2.height = src_height - 1;
1548	ss->ss3.pitch  = src_pitch - 1;
1549
1550	return sna->kgem.surface * sizeof(uint32_t);
1551}
1552
1553static void gen6_emit_video_state(struct sna *sna,
1554				  const struct sna_composite_op *op)
1555{
1556	struct sna_video_frame *frame = op->priv;
1557	uint32_t src_surf_format;
1558	uint32_t src_surf_base[6];
1559	int src_width[6];
1560	int src_height[6];
1561	int src_pitch[6];
1562	uint32_t *binding_table;
1563	uint16_t offset;
1564	bool dirty;
1565	int n_src, n;
1566
1567	dirty = gen6_get_batch(sna, op);
1568
1569	src_surf_base[0] = 0;
1570	src_surf_base[1] = 0;
1571	src_surf_base[2] = frame->VBufOffset;
1572	src_surf_base[3] = frame->VBufOffset;
1573	src_surf_base[4] = frame->UBufOffset;
1574	src_surf_base[5] = frame->UBufOffset;
1575
1576	if (is_planar_fourcc(frame->id)) {
1577		src_surf_format = GEN6_SURFACEFORMAT_R8_UNORM;
1578		src_width[1]  = src_width[0]  = frame->width;
1579		src_height[1] = src_height[0] = frame->height;
1580		src_pitch[1]  = src_pitch[0]  = frame->pitch[1];
1581		src_width[4]  = src_width[5]  = src_width[2]  = src_width[3] =
1582			frame->width / 2;
1583		src_height[4] = src_height[5] = src_height[2] = src_height[3] =
1584			frame->height / 2;
1585		src_pitch[4]  = src_pitch[5]  = src_pitch[2]  = src_pitch[3] =
1586			frame->pitch[0];
1587		n_src = 6;
1588	} else {
1589		if (frame->id == FOURCC_UYVY)
1590			src_surf_format = GEN6_SURFACEFORMAT_YCRCB_SWAPY;
1591		else
1592			src_surf_format = GEN6_SURFACEFORMAT_YCRCB_NORMAL;
1593
1594		src_width[0]  = frame->width;
1595		src_height[0] = frame->height;
1596		src_pitch[0]  = frame->pitch[0];
1597		n_src = 1;
1598	}
1599
1600	binding_table = gen6_composite_get_binding_table(sna, &offset);
1601
1602	binding_table[0] =
1603		gen6_bind_bo(sna,
1604			     op->dst.bo, op->dst.width, op->dst.height,
1605			     gen6_get_dest_format(op->dst.format),
1606			     true);
1607	for (n = 0; n < n_src; n++) {
1608		binding_table[1+n] =
1609			gen6_bind_video_source(sna,
1610					       frame->bo,
1611					       src_surf_base[n],
1612					       src_width[n],
1613					       src_height[n],
1614					       src_pitch[n],
1615					       src_surf_format);
1616	}
1617
1618	gen6_emit_state(sna, op, offset | dirty);
1619}
1620
1621static bool
1622gen6_render_video(struct sna *sna,
1623		  struct sna_video *video,
1624		  struct sna_video_frame *frame,
1625		  RegionPtr dstRegion,
1626		  PixmapPtr pixmap)
1627{
1628	struct sna_composite_op tmp;
1629	struct sna_pixmap *priv = sna_pixmap(pixmap);
1630	int dst_width = dstRegion->extents.x2 - dstRegion->extents.x1;
1631	int dst_height = dstRegion->extents.y2 - dstRegion->extents.y1;
1632	int src_width = frame->src.x2 - frame->src.x1;
1633	int src_height = frame->src.y2 - frame->src.y1;
1634	float src_offset_x, src_offset_y;
1635	float src_scale_x, src_scale_y;
1636	int nbox, pix_xoff, pix_yoff;
1637	unsigned filter;
1638	const BoxRec *box;
1639
1640	DBG(("%s: src=(%d, %d), dst=(%d, %d), %dx[(%d, %d), (%d, %d)...]\n",
1641	     __FUNCTION__,
1642	     src_width, src_height, dst_width, dst_height,
1643	     region_num_rects(dstRegion),
1644	     REGION_EXTENTS(NULL, dstRegion)->x1,
1645	     REGION_EXTENTS(NULL, dstRegion)->y1,
1646	     REGION_EXTENTS(NULL, dstRegion)->x2,
1647	     REGION_EXTENTS(NULL, dstRegion)->y2));
1648
1649	assert(priv->gpu_bo);
1650	memset(&tmp, 0, sizeof(tmp));
1651
1652	tmp.dst.pixmap = pixmap;
1653	tmp.dst.width  = pixmap->drawable.width;
1654	tmp.dst.height = pixmap->drawable.height;
1655	tmp.dst.format = sna_render_format_for_depth(pixmap->drawable.depth);
1656	tmp.dst.bo = priv->gpu_bo;
1657
1658	tmp.src.bo = frame->bo;
1659	tmp.mask.bo = NULL;
1660
1661	tmp.floats_per_vertex = 3;
1662	tmp.floats_per_rect = 9;
1663
1664	if (src_width == dst_width && src_height == dst_height)
1665		filter = SAMPLER_FILTER_NEAREST;
1666	else
1667		filter = SAMPLER_FILTER_BILINEAR;
1668
1669	tmp.u.gen6.flags =
1670		GEN6_SET_FLAGS(SAMPLER_OFFSET(filter, SAMPLER_EXTEND_PAD,
1671					       SAMPLER_FILTER_NEAREST, SAMPLER_EXTEND_NONE),
1672			       NO_BLEND,
1673			       is_planar_fourcc(frame->id) ?
1674			       GEN6_WM_KERNEL_VIDEO_PLANAR :
1675			       GEN6_WM_KERNEL_VIDEO_PACKED,
1676			       2);
1677	tmp.priv = frame;
1678
1679	kgem_set_mode(&sna->kgem, KGEM_RENDER, tmp.dst.bo);
1680	if (!kgem_check_bo(&sna->kgem, tmp.dst.bo, frame->bo, NULL)) {
1681		kgem_submit(&sna->kgem);
1682		assert(kgem_check_bo(&sna->kgem, tmp.dst.bo, frame->bo, NULL));
1683		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
1684	}
1685
1686	gen6_align_vertex(sna, &tmp);
1687	gen6_emit_video_state(sna, &tmp);
1688
1689	/* Set up the offset for translating from the given region (in screen
1690	 * coordinates) to the backing pixmap.
1691	 */
1692#ifdef COMPOSITE
1693	pix_xoff = -pixmap->screen_x + pixmap->drawable.x;
1694	pix_yoff = -pixmap->screen_y + pixmap->drawable.y;
1695#else
1696	pix_xoff = 0;
1697	pix_yoff = 0;
1698#endif
1699
1700	src_scale_x = (float)src_width / dst_width / frame->width;
1701	src_offset_x = (float)frame->src.x1 / frame->width - dstRegion->extents.x1 * src_scale_x;
1702
1703	src_scale_y = (float)src_height / dst_height / frame->height;
1704	src_offset_y = (float)frame->src.y1 / frame->height - dstRegion->extents.y1 * src_scale_y;
1705
1706	box = region_rects(dstRegion);
1707	nbox = region_num_rects(dstRegion);
1708	while (nbox--) {
1709		BoxRec r;
1710
1711		r.x1 = box->x1 + pix_xoff;
1712		r.x2 = box->x2 + pix_xoff;
1713		r.y1 = box->y1 + pix_yoff;
1714		r.y2 = box->y2 + pix_yoff;
1715
1716		gen6_get_rectangles(sna, &tmp, 1, gen6_emit_video_state);
1717
1718		OUT_VERTEX(r.x2, r.y2);
1719		OUT_VERTEX_F(box->x2 * src_scale_x + src_offset_x);
1720		OUT_VERTEX_F(box->y2 * src_scale_y + src_offset_y);
1721
1722		OUT_VERTEX(r.x1, r.y2);
1723		OUT_VERTEX_F(box->x1 * src_scale_x + src_offset_x);
1724		OUT_VERTEX_F(box->y2 * src_scale_y + src_offset_y);
1725
1726		OUT_VERTEX(r.x1, r.y1);
1727		OUT_VERTEX_F(box->x1 * src_scale_x + src_offset_x);
1728		OUT_VERTEX_F(box->y1 * src_scale_y + src_offset_y);
1729
1730		if (!DAMAGE_IS_ALL(priv->gpu_damage)) {
1731			sna_damage_add_box(&priv->gpu_damage, &r);
1732			sna_damage_subtract_box(&priv->cpu_damage, &r);
1733		}
1734		box++;
1735	}
1736
1737	gen4_vertex_flush(sna);
1738	return true;
1739}
1740
1741static int
1742gen6_composite_picture(struct sna *sna,
1743		       PicturePtr picture,
1744		       struct sna_composite_channel *channel,
1745		       int x, int y,
1746		       int w, int h,
1747		       int dst_x, int dst_y,
1748		       bool precise)
1749{
1750	PixmapPtr pixmap;
1751	uint32_t color;
1752	int16_t dx, dy;
1753
1754	DBG(("%s: (%d, %d)x(%d, %d), dst=(%d, %d), precise=%d\n",
1755	     __FUNCTION__, x, y, w, h, dst_x, dst_y, precise));
1756
1757	channel->is_solid = false;
1758	channel->card_format = -1;
1759
1760	if (sna_picture_is_solid(picture, &color))
1761		return gen4_channel_init_solid(sna, channel, color);
1762
1763	if (picture->pDrawable == NULL) {
1764		int ret;
1765
1766		if (picture->pSourcePict->type == SourcePictTypeLinear)
1767			return gen4_channel_init_linear(sna, picture, channel,
1768							x, y,
1769							w, h,
1770							dst_x, dst_y);
1771
1772		DBG(("%s -- fixup, gradient\n", __FUNCTION__));
1773		ret = -1;
1774		if (!precise)
1775			ret = sna_render_picture_approximate_gradient(sna, picture, channel,
1776								      x, y, w, h, dst_x, dst_y);
1777		if (ret == -1)
1778			ret = sna_render_picture_fixup(sna, picture, channel,
1779						       x, y, w, h, dst_x, dst_y);
1780		return ret;
1781	}
1782
1783	if (picture->alphaMap) {
1784		DBG(("%s -- fixup, alphamap\n", __FUNCTION__));
1785		return sna_render_picture_fixup(sna, picture, channel,
1786						x, y, w, h, dst_x, dst_y);
1787	}
1788
1789	if (!gen6_check_repeat(picture))
1790		return sna_render_picture_fixup(sna, picture, channel,
1791						x, y, w, h, dst_x, dst_y);
1792
1793	if (!gen6_check_filter(picture))
1794		return sna_render_picture_fixup(sna, picture, channel,
1795						x, y, w, h, dst_x, dst_y);
1796
1797	channel->repeat = picture->repeat ? picture->repeatType : RepeatNone;
1798	channel->filter = picture->filter;
1799
1800	pixmap = get_drawable_pixmap(picture->pDrawable);
1801	get_drawable_deltas(picture->pDrawable, pixmap, &dx, &dy);
1802
1803	x += dx + picture->pDrawable->x;
1804	y += dy + picture->pDrawable->y;
1805
1806	channel->is_affine = sna_transform_is_affine(picture->transform);
1807	if (sna_transform_is_imprecise_integer_translation(picture->transform, picture->filter, precise, &dx, &dy)) {
1808		DBG(("%s: integer translation (%d, %d), removing\n",
1809		     __FUNCTION__, dx, dy));
1810		x += dx;
1811		y += dy;
1812		channel->transform = NULL;
1813		channel->filter = PictFilterNearest;
1814
1815		if (channel->repeat &&
1816		    (x >= 0 &&
1817		     y >= 0 &&
1818		     x + w < pixmap->drawable.width &&
1819		     y + h < pixmap->drawable.height)) {
1820			struct sna_pixmap *priv = sna_pixmap(pixmap);
1821			if (priv && priv->clear) {
1822				DBG(("%s: converting large pixmap source into solid [%08x]\n", __FUNCTION__, priv->clear_color));
1823				return gen4_channel_init_solid(sna, channel, priv->clear_color);
1824			}
1825		}
1826	} else
1827		channel->transform = picture->transform;
1828
1829	channel->pict_format = picture->format;
1830	channel->card_format = gen6_get_card_format(picture->format);
1831	if (channel->card_format == (unsigned)-1)
1832		return sna_render_picture_convert(sna, picture, channel, pixmap,
1833						  x, y, w, h, dst_x, dst_y,
1834						  false);
1835
1836	if (too_large(pixmap->drawable.width, pixmap->drawable.height)) {
1837		DBG(("%s: extracting from pixmap %dx%d\n", __FUNCTION__,
1838		     pixmap->drawable.width, pixmap->drawable.height));
1839		return sna_render_picture_extract(sna, picture, channel,
1840						  x, y, w, h, dst_x, dst_y);
1841	}
1842
1843	DBG(("%s: pixmap, repeat=%d, filter=%d, transform?=%d [affine? %d], format=%08x\n",
1844	     __FUNCTION__,
1845	     channel->repeat, channel->filter,
1846	     channel->transform != NULL, channel->is_affine,
1847	     channel->pict_format));
1848	if (channel->transform) {
1849#define f2d(x) (((double)(x))/65536.)
1850		DBG(("%s: transform=[%f %f %f, %f %f %f, %f %f %f] (raw [%x %x %x, %x %x %x, %x %x %x])\n",
1851		     __FUNCTION__,
1852		     f2d(channel->transform->matrix[0][0]),
1853		     f2d(channel->transform->matrix[0][1]),
1854		     f2d(channel->transform->matrix[0][2]),
1855		     f2d(channel->transform->matrix[1][0]),
1856		     f2d(channel->transform->matrix[1][1]),
1857		     f2d(channel->transform->matrix[1][2]),
1858		     f2d(channel->transform->matrix[2][0]),
1859		     f2d(channel->transform->matrix[2][1]),
1860		     f2d(channel->transform->matrix[2][2]),
1861		     channel->transform->matrix[0][0],
1862		     channel->transform->matrix[0][1],
1863		     channel->transform->matrix[0][2],
1864		     channel->transform->matrix[1][0],
1865		     channel->transform->matrix[1][1],
1866		     channel->transform->matrix[1][2],
1867		     channel->transform->matrix[2][0],
1868		     channel->transform->matrix[2][1],
1869		     channel->transform->matrix[2][2]));
1870#undef f2d
1871	}
1872
1873	return sna_render_pixmap_bo(sna, channel, pixmap,
1874				    x, y, w, h, dst_x, dst_y);
1875}
1876
1877inline static void gen6_composite_channel_convert(struct sna_composite_channel *channel)
1878{
1879	channel->repeat = gen6_repeat(channel->repeat);
1880	channel->filter = gen6_filter(channel->filter);
1881	if (channel->card_format == (unsigned)-1)
1882		channel->card_format = gen6_get_card_format(channel->pict_format);
1883	assert(channel->card_format != (unsigned)-1);
1884}
1885
1886static void gen6_render_composite_done(struct sna *sna,
1887				       const struct sna_composite_op *op)
1888{
1889	DBG(("%s\n", __FUNCTION__));
1890
1891	assert(!sna->render.active);
1892	if (sna->render.vertex_offset) {
1893		gen4_vertex_flush(sna);
1894		gen6_magic_ca_pass(sna, op);
1895	}
1896
1897	if (op->mask.bo)
1898		kgem_bo_destroy(&sna->kgem, op->mask.bo);
1899	if (op->src.bo)
1900		kgem_bo_destroy(&sna->kgem, op->src.bo);
1901
1902	sna_render_composite_redirect_done(sna, op);
1903}
1904
1905inline static bool
1906gen6_composite_set_target(struct sna *sna,
1907			  struct sna_composite_op *op,
1908			  PicturePtr dst,
1909			  int x, int y, int w, int h,
1910			  bool partial)
1911{
1912	BoxRec box;
1913	unsigned int hint;
1914
1915	DBG(("%s: (%d, %d)x(%d, %d), partial?=%d\n", __FUNCTION__, x, y, w, h, partial));
1916
1917	op->dst.pixmap = get_drawable_pixmap(dst->pDrawable);
1918	op->dst.format = dst->format;
1919	op->dst.width = op->dst.pixmap->drawable.width;
1920	op->dst.height = op->dst.pixmap->drawable.height;
1921
1922	if (w && h) {
1923		box.x1 = x;
1924		box.y1 = y;
1925		box.x2 = x + w;
1926		box.y2 = y + h;
1927	} else
1928		sna_render_picture_extents(dst, &box);
1929
1930	hint = PREFER_GPU | FORCE_GPU | RENDER_GPU;
1931	if (!partial) {
1932		hint |= IGNORE_DAMAGE;
1933		if (w == op->dst.width && h == op->dst.height)
1934			hint |= REPLACES;
1935	}
1936
1937	op->dst.bo = sna_drawable_use_bo(dst->pDrawable, hint, &box, &op->damage);
1938	if (op->dst.bo == NULL)
1939		return false;
1940
1941	if (hint & REPLACES) {
1942		struct sna_pixmap *priv = sna_pixmap(op->dst.pixmap);
1943		kgem_bo_pair_undo(&sna->kgem, priv->gpu_bo, priv->cpu_bo);
1944	}
1945
1946	get_drawable_deltas(dst->pDrawable, op->dst.pixmap,
1947			    &op->dst.x, &op->dst.y);
1948
1949	DBG(("%s: pixmap=%ld, format=%08x, size=%dx%d, pitch=%d, delta=(%d,%d),damage=%p\n",
1950	     __FUNCTION__,
1951	     op->dst.pixmap->drawable.serialNumber, (int)op->dst.format,
1952	     op->dst.width, op->dst.height,
1953	     op->dst.bo->pitch,
1954	     op->dst.x, op->dst.y,
1955	     op->damage ? *op->damage : (void *)-1));
1956
1957	assert(op->dst.bo->proxy == NULL);
1958
1959	if (too_large(op->dst.width, op->dst.height) &&
1960	    !sna_render_composite_redirect(sna, op, x, y, w, h, partial))
1961		return false;
1962
1963	return true;
1964}
1965
1966static bool
1967try_blt(struct sna *sna,
1968	PicturePtr dst, PicturePtr src,
1969	int width, int height)
1970{
1971	struct kgem_bo *bo;
1972
1973	if (sna->kgem.mode == KGEM_BLT) {
1974		DBG(("%s: already performing BLT\n", __FUNCTION__));
1975		return true;
1976	}
1977
1978	if (too_large(width, height)) {
1979		DBG(("%s: operation too large for 3D pipe (%d, %d)\n",
1980		     __FUNCTION__, width, height));
1981		return true;
1982	}
1983
1984	bo = __sna_drawable_peek_bo(dst->pDrawable);
1985	if (bo == NULL)
1986		return true;
1987	if (bo->rq)
1988		return RQ_IS_BLT(bo->rq);
1989
1990	if (sna_picture_is_solid(src, NULL) && can_switch_to_blt(sna, bo, 0))
1991		return true;
1992
1993	if (src->pDrawable) {
1994		bo = __sna_drawable_peek_bo(src->pDrawable);
1995		if (bo == NULL)
1996			return true;
1997
1998		if (prefer_blt_bo(sna, bo))
1999			return true;
2000	}
2001
2002	if (sna->kgem.ring == KGEM_BLT) {
2003		DBG(("%s: already performing BLT\n", __FUNCTION__));
2004		return true;
2005	}
2006
2007	return false;
2008}
2009
2010static bool
2011check_gradient(PicturePtr picture, bool precise)
2012{
2013	if (picture->pDrawable)
2014		return false;
2015
2016	switch (picture->pSourcePict->type) {
2017	case SourcePictTypeSolidFill:
2018	case SourcePictTypeLinear:
2019		return false;
2020	default:
2021		return precise;
2022	}
2023}
2024
2025static bool
2026has_alphamap(PicturePtr p)
2027{
2028	return p->alphaMap != NULL;
2029}
2030
2031static bool
2032need_upload(PicturePtr p)
2033{
2034	return p->pDrawable && unattached(p->pDrawable) && untransformed(p);
2035}
2036
2037static bool
2038source_is_busy(PixmapPtr pixmap)
2039{
2040	struct sna_pixmap *priv = sna_pixmap(pixmap);
2041	if (priv == NULL || priv->clear)
2042		return false;
2043
2044	if (priv->gpu_bo && kgem_bo_is_busy(priv->gpu_bo))
2045		return true;
2046
2047	if (priv->cpu_bo && kgem_bo_is_busy(priv->cpu_bo))
2048		return true;
2049
2050	return priv->gpu_damage && !priv->cpu_damage;
2051}
2052
2053static bool
2054source_fallback(PicturePtr p, PixmapPtr pixmap, bool precise)
2055{
2056	if (sna_picture_is_solid(p, NULL))
2057		return false;
2058
2059	if (p->pSourcePict)
2060		return check_gradient(p, precise);
2061
2062	if (!gen6_check_repeat(p) || !gen6_check_format(p->format))
2063		return true;
2064
2065	if (pixmap && source_is_busy(pixmap))
2066		return false;
2067
2068	return has_alphamap(p) || !gen6_check_filter(p) || need_upload(p);
2069}
2070
2071static bool
2072gen6_composite_fallback(struct sna *sna,
2073			PicturePtr src,
2074			PicturePtr mask,
2075			PicturePtr dst)
2076{
2077	PixmapPtr src_pixmap;
2078	PixmapPtr mask_pixmap;
2079	PixmapPtr dst_pixmap;
2080	bool src_fallback, mask_fallback;
2081
2082	if (!gen6_check_dst_format(dst->format)) {
2083		DBG(("%s: unknown destination format: %d\n",
2084		     __FUNCTION__, dst->format));
2085		return true;
2086	}
2087
2088	dst_pixmap = get_drawable_pixmap(dst->pDrawable);
2089
2090	src_pixmap = src->pDrawable ? get_drawable_pixmap(src->pDrawable) : NULL;
2091	src_fallback = source_fallback(src, src_pixmap,
2092				       dst->polyMode == PolyModePrecise);
2093
2094	if (mask) {
2095		mask_pixmap = mask->pDrawable ? get_drawable_pixmap(mask->pDrawable) : NULL;
2096		mask_fallback = source_fallback(mask, mask_pixmap,
2097						dst->polyMode == PolyModePrecise);
2098	} else {
2099		mask_pixmap = NULL;
2100		mask_fallback = false;
2101	}
2102
2103	/* If we are using the destination as a source and need to
2104	 * readback in order to upload the source, do it all
2105	 * on the cpu.
2106	 */
2107	if (src_pixmap == dst_pixmap && src_fallback) {
2108		DBG(("%s: src is dst and will fallback\n",__FUNCTION__));
2109		return true;
2110	}
2111	if (mask_pixmap == dst_pixmap && mask_fallback) {
2112		DBG(("%s: mask is dst and will fallback\n",__FUNCTION__));
2113		return true;
2114	}
2115
2116	/* If anything is on the GPU, push everything out to the GPU */
2117	if (dst_use_gpu(dst_pixmap)) {
2118		DBG(("%s: dst is already on the GPU, try to use GPU\n",
2119		     __FUNCTION__));
2120		return false;
2121	}
2122
2123	if (src_pixmap && !src_fallback) {
2124		DBG(("%s: src is already on the GPU, try to use GPU\n",
2125		     __FUNCTION__));
2126		return false;
2127	}
2128	if (mask_pixmap && !mask_fallback) {
2129		DBG(("%s: mask is already on the GPU, try to use GPU\n",
2130		     __FUNCTION__));
2131		return false;
2132	}
2133
2134	/* However if the dst is not on the GPU and we need to
2135	 * render one of the sources using the CPU, we may
2136	 * as well do the entire operation in place onthe CPU.
2137	 */
2138	if (src_fallback) {
2139		DBG(("%s: dst is on the CPU and src will fallback\n",
2140		     __FUNCTION__));
2141		return true;
2142	}
2143
2144	if (mask && mask_fallback) {
2145		DBG(("%s: dst is on the CPU and mask will fallback\n",
2146		     __FUNCTION__));
2147		return true;
2148	}
2149
2150	if (too_large(dst_pixmap->drawable.width,
2151		      dst_pixmap->drawable.height) &&
2152	    dst_is_cpu(dst_pixmap)) {
2153		DBG(("%s: dst is on the CPU and too large\n", __FUNCTION__));
2154		return true;
2155	}
2156
2157	DBG(("%s: dst is not on the GPU and the operation should not fallback\n",
2158	     __FUNCTION__));
2159	return dst_use_cpu(dst_pixmap);
2160}
2161
2162static int
2163reuse_source(struct sna *sna,
2164	     PicturePtr src, struct sna_composite_channel *sc, int src_x, int src_y,
2165	     PicturePtr mask, struct sna_composite_channel *mc, int msk_x, int msk_y)
2166{
2167	uint32_t color;
2168
2169	if (src_x != msk_x || src_y != msk_y)
2170		return false;
2171
2172	if (src == mask) {
2173		DBG(("%s: mask is source\n", __FUNCTION__));
2174		*mc = *sc;
2175		mc->bo = kgem_bo_reference(mc->bo);
2176		return true;
2177	}
2178
2179	if (sna_picture_is_solid(mask, &color))
2180		return gen4_channel_init_solid(sna, mc, color);
2181
2182	if (sc->is_solid)
2183		return false;
2184
2185	if (src->pDrawable == NULL || mask->pDrawable != src->pDrawable)
2186		return false;
2187
2188	DBG(("%s: mask reuses source drawable\n", __FUNCTION__));
2189
2190	if (!sna_transform_equal(src->transform, mask->transform))
2191		return false;
2192
2193	if (!sna_picture_alphamap_equal(src, mask))
2194		return false;
2195
2196	if (!gen6_check_repeat(mask))
2197		return false;
2198
2199	if (!gen6_check_filter(mask))
2200		return false;
2201
2202	if (!gen6_check_format(mask->format))
2203		return false;
2204
2205	DBG(("%s: reusing source channel for mask with a twist\n",
2206	     __FUNCTION__));
2207
2208	*mc = *sc;
2209	mc->repeat = gen6_repeat(mask->repeat ? mask->repeatType : RepeatNone);
2210	mc->filter = gen6_filter(mask->filter);
2211	mc->pict_format = mask->format;
2212	mc->card_format = gen6_get_card_format(mask->format);
2213	mc->bo = kgem_bo_reference(mc->bo);
2214	return true;
2215}
2216
2217static bool
2218gen6_render_composite(struct sna *sna,
2219		      uint8_t op,
2220		      PicturePtr src,
2221		      PicturePtr mask,
2222		      PicturePtr dst,
2223		      int16_t src_x, int16_t src_y,
2224		      int16_t msk_x, int16_t msk_y,
2225		      int16_t dst_x, int16_t dst_y,
2226		      int16_t width, int16_t height,
2227		      unsigned flags,
2228		      struct sna_composite_op *tmp)
2229{
2230	if (op >= ARRAY_SIZE(gen6_blend_op))
2231		return false;
2232
2233	DBG(("%s: %dx%d, current mode=%d\n", __FUNCTION__,
2234	     width, height, sna->kgem.ring));
2235
2236	if (mask == NULL &&
2237	    try_blt(sna, dst, src, width, height) &&
2238	    sna_blt_composite(sna, op,
2239			      src, dst,
2240			      src_x, src_y,
2241			      dst_x, dst_y,
2242			      width, height,
2243			      flags, tmp))
2244		return true;
2245
2246	if (gen6_composite_fallback(sna, src, mask, dst))
2247		goto fallback;
2248
2249	if (need_tiling(sna, width, height))
2250		return sna_tiling_composite(op, src, mask, dst,
2251					    src_x, src_y,
2252					    msk_x, msk_y,
2253					    dst_x, dst_y,
2254					    width, height,
2255					    tmp);
2256
2257	if (op == PictOpClear && src == sna->clear)
2258		op = PictOpSrc;
2259	tmp->op = op;
2260	if (!gen6_composite_set_target(sna, tmp, dst,
2261				       dst_x, dst_y, width, height,
2262				       flags & COMPOSITE_PARTIAL || op > PictOpSrc))
2263		goto fallback;
2264
2265	switch (gen6_composite_picture(sna, src, &tmp->src,
2266				       src_x, src_y,
2267				       width, height,
2268				       dst_x, dst_y,
2269				       dst->polyMode == PolyModePrecise)) {
2270	case -1:
2271		goto cleanup_dst;
2272	case 0:
2273		if (!gen4_channel_init_solid(sna, &tmp->src, 0))
2274			goto cleanup_dst;
2275		/* fall through to fixup */
2276	case 1:
2277		/* Did we just switch rings to prepare the source? */
2278		if (mask == NULL &&
2279		    prefer_blt_composite(sna, tmp) &&
2280		    sna_blt_composite__convert(sna,
2281					       dst_x, dst_y, width, height,
2282					       tmp))
2283			return true;
2284
2285		gen6_composite_channel_convert(&tmp->src);
2286		break;
2287	}
2288
2289	tmp->is_affine = tmp->src.is_affine;
2290	tmp->has_component_alpha = false;
2291	tmp->need_magic_ca_pass = false;
2292
2293	tmp->mask.bo = NULL;
2294	tmp->mask.filter = SAMPLER_FILTER_NEAREST;
2295	tmp->mask.repeat = SAMPLER_EXTEND_NONE;
2296
2297	if (mask) {
2298		if (mask->componentAlpha && PICT_FORMAT_RGB(mask->format)) {
2299			tmp->has_component_alpha = true;
2300
2301			/* Check if it's component alpha that relies on a source alpha and on
2302			 * the source value.  We can only get one of those into the single
2303			 * source value that we get to blend with.
2304			 */
2305			if (gen6_blend_op[op].src_alpha &&
2306			    (gen6_blend_op[op].src_blend != GEN6_BLENDFACTOR_ZERO)) {
2307				if (op != PictOpOver)
2308					goto cleanup_src;
2309
2310				tmp->need_magic_ca_pass = true;
2311				tmp->op = PictOpOutReverse;
2312			}
2313		}
2314
2315		if (!reuse_source(sna,
2316				  src, &tmp->src, src_x, src_y,
2317				  mask, &tmp->mask, msk_x, msk_y)) {
2318			switch (gen6_composite_picture(sna, mask, &tmp->mask,
2319						       msk_x, msk_y,
2320						       width, height,
2321						       dst_x, dst_y,
2322						       dst->polyMode == PolyModePrecise)) {
2323			case -1:
2324				goto cleanup_src;
2325			case 0:
2326				if (!gen4_channel_init_solid(sna, &tmp->mask, 0))
2327					goto cleanup_src;
2328				/* fall through to fixup */
2329			case 1:
2330				gen6_composite_channel_convert(&tmp->mask);
2331				break;
2332			}
2333		}
2334
2335		tmp->is_affine &= tmp->mask.is_affine;
2336	}
2337
2338	tmp->u.gen6.flags =
2339		GEN6_SET_FLAGS(SAMPLER_OFFSET(tmp->src.filter,
2340					      tmp->src.repeat,
2341					      tmp->mask.filter,
2342					      tmp->mask.repeat),
2343			       gen6_get_blend(tmp->op,
2344					      tmp->has_component_alpha,
2345					      tmp->dst.format),
2346			       gen6_choose_composite_kernel(tmp->op,
2347							    tmp->mask.bo != NULL,
2348							    tmp->has_component_alpha,
2349							    tmp->is_affine),
2350			       gen4_choose_composite_emitter(sna, tmp));
2351
2352	tmp->blt   = gen6_render_composite_blt;
2353	tmp->box   = gen6_render_composite_box;
2354	tmp->boxes = gen6_render_composite_boxes__blt;
2355	if (tmp->emit_boxes) {
2356		tmp->boxes = gen6_render_composite_boxes;
2357		tmp->thread_boxes = gen6_render_composite_boxes__thread;
2358	}
2359	tmp->done  = gen6_render_composite_done;
2360
2361	kgem_set_mode(&sna->kgem, KGEM_RENDER, tmp->dst.bo);
2362	if (!kgem_check_bo(&sna->kgem,
2363			   tmp->dst.bo, tmp->src.bo, tmp->mask.bo,
2364			   NULL)) {
2365		kgem_submit(&sna->kgem);
2366		if (!kgem_check_bo(&sna->kgem,
2367				   tmp->dst.bo, tmp->src.bo, tmp->mask.bo,
2368				   NULL))
2369			goto cleanup_mask;
2370		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
2371	}
2372
2373	gen6_align_vertex(sna, tmp);
2374	gen6_emit_composite_state(sna, tmp);
2375	return true;
2376
2377cleanup_mask:
2378	if (tmp->mask.bo) {
2379		kgem_bo_destroy(&sna->kgem, tmp->mask.bo);
2380		tmp->mask.bo = NULL;
2381	}
2382cleanup_src:
2383	if (tmp->src.bo) {
2384		kgem_bo_destroy(&sna->kgem, tmp->src.bo);
2385		tmp->src.bo = NULL;
2386	}
2387cleanup_dst:
2388	if (tmp->redirect.real_bo) {
2389		kgem_bo_destroy(&sna->kgem, tmp->dst.bo);
2390		tmp->redirect.real_bo = NULL;
2391	}
2392fallback:
2393	return (mask == NULL &&
2394		sna_blt_composite(sna, op,
2395				  src, dst,
2396				  src_x, src_y,
2397				  dst_x, dst_y,
2398				  width, height,
2399				  flags | COMPOSITE_FALLBACK, tmp));
2400}
2401
2402#if !NO_COMPOSITE_SPANS
2403fastcall static void
2404gen6_render_composite_spans_box(struct sna *sna,
2405				const struct sna_composite_spans_op *op,
2406				const BoxRec *box, float opacity)
2407{
2408	DBG(("%s: src=+(%d, %d), opacity=%f, dst=+(%d, %d), box=(%d, %d) x (%d, %d)\n",
2409	     __FUNCTION__,
2410	     op->base.src.offset[0], op->base.src.offset[1],
2411	     opacity,
2412	     op->base.dst.x, op->base.dst.y,
2413	     box->x1, box->y1,
2414	     box->x2 - box->x1,
2415	     box->y2 - box->y1));
2416
2417	gen6_get_rectangles(sna, &op->base, 1, gen6_emit_composite_state);
2418	op->prim_emit(sna, op, box, opacity);
2419}
2420
2421static void
2422gen6_render_composite_spans_boxes(struct sna *sna,
2423				  const struct sna_composite_spans_op *op,
2424				  const BoxRec *box, int nbox,
2425				  float opacity)
2426{
2427	DBG(("%s: nbox=%d, src=+(%d, %d), opacity=%f, dst=+(%d, %d)\n",
2428	     __FUNCTION__, nbox,
2429	     op->base.src.offset[0], op->base.src.offset[1],
2430	     opacity,
2431	     op->base.dst.x, op->base.dst.y));
2432
2433	do {
2434		int nbox_this_time;
2435
2436		nbox_this_time = gen6_get_rectangles(sna, &op->base, nbox,
2437						     gen6_emit_composite_state);
2438		nbox -= nbox_this_time;
2439
2440		do {
2441			DBG(("  %s: (%d, %d) x (%d, %d)\n", __FUNCTION__,
2442			     box->x1, box->y1,
2443			     box->x2 - box->x1,
2444			     box->y2 - box->y1));
2445
2446			op->prim_emit(sna, op, box++, opacity);
2447		} while (--nbox_this_time);
2448	} while (nbox);
2449}
2450
2451fastcall static void
2452gen6_render_composite_spans_boxes__thread(struct sna *sna,
2453					  const struct sna_composite_spans_op *op,
2454					  const struct sna_opacity_box *box,
2455					  int nbox)
2456{
2457	DBG(("%s: nbox=%d, src=+(%d, %d), dst=+(%d, %d)\n",
2458	     __FUNCTION__, nbox,
2459	     op->base.src.offset[0], op->base.src.offset[1],
2460	     op->base.dst.x, op->base.dst.y));
2461
2462	sna_vertex_lock(&sna->render);
2463	do {
2464		int nbox_this_time;
2465		float *v;
2466
2467		nbox_this_time = gen6_get_rectangles(sna, &op->base, nbox,
2468						     gen6_emit_composite_state);
2469		assert(nbox_this_time);
2470		nbox -= nbox_this_time;
2471
2472		v = sna->render.vertices + sna->render.vertex_used;
2473		sna->render.vertex_used += nbox_this_time * op->base.floats_per_rect;
2474
2475		sna_vertex_acquire__locked(&sna->render);
2476		sna_vertex_unlock(&sna->render);
2477
2478		op->emit_boxes(op, box, nbox_this_time, v);
2479		box += nbox_this_time;
2480
2481		sna_vertex_lock(&sna->render);
2482		sna_vertex_release__locked(&sna->render);
2483	} while (nbox);
2484	sna_vertex_unlock(&sna->render);
2485}
2486
2487fastcall static void
2488gen6_render_composite_spans_done(struct sna *sna,
2489				 const struct sna_composite_spans_op *op)
2490{
2491	DBG(("%s()\n", __FUNCTION__));
2492	assert(!sna->render.active);
2493
2494	if (sna->render.vertex_offset)
2495		gen4_vertex_flush(sna);
2496
2497	if (op->base.src.bo)
2498		kgem_bo_destroy(&sna->kgem, op->base.src.bo);
2499
2500	sna_render_composite_redirect_done(sna, &op->base);
2501}
2502
2503static bool
2504gen6_check_composite_spans(struct sna *sna,
2505			   uint8_t op, PicturePtr src, PicturePtr dst,
2506			   int16_t width, int16_t height,
2507			   unsigned flags)
2508{
2509	DBG(("%s: op=%d, width=%d, height=%d, flags=%x\n",
2510	     __FUNCTION__, op, width, height, flags));
2511
2512	if (op >= ARRAY_SIZE(gen6_blend_op))
2513		return false;
2514
2515	if (gen6_composite_fallback(sna, src, NULL, dst)) {
2516		DBG(("%s: operation would fallback\n", __FUNCTION__));
2517		return false;
2518	}
2519
2520	if (need_tiling(sna, width, height) &&
2521	    !is_gpu(sna, dst->pDrawable, PREFER_GPU_SPANS)) {
2522		DBG(("%s: fallback, tiled operation not on GPU\n",
2523		     __FUNCTION__));
2524		return false;
2525	}
2526
2527	if ((flags & COMPOSITE_SPANS_RECTILINEAR) == 0) {
2528		struct sna_pixmap *priv = sna_pixmap_from_drawable(dst->pDrawable);
2529		assert(priv);
2530
2531		if (priv->cpu_bo && kgem_bo_is_busy(priv->cpu_bo))
2532			return true;
2533
2534		if (flags & COMPOSITE_SPANS_INPLACE_HINT)
2535			return false;
2536
2537		return priv->gpu_bo && kgem_bo_is_busy(priv->gpu_bo);
2538	}
2539
2540	return true;
2541}
2542
2543static bool
2544gen6_render_composite_spans(struct sna *sna,
2545			    uint8_t op,
2546			    PicturePtr src,
2547			    PicturePtr dst,
2548			    int16_t src_x,  int16_t src_y,
2549			    int16_t dst_x,  int16_t dst_y,
2550			    int16_t width,  int16_t height,
2551			    unsigned flags,
2552			    struct sna_composite_spans_op *tmp)
2553{
2554	DBG(("%s: %dx%d with flags=%x, current mode=%d\n", __FUNCTION__,
2555	     width, height, flags, sna->kgem.ring));
2556
2557	assert(gen6_check_composite_spans(sna, op, src, dst, width, height, flags));
2558
2559	if (need_tiling(sna, width, height)) {
2560		DBG(("%s: tiling, operation (%dx%d) too wide for pipeline\n",
2561		     __FUNCTION__, width, height));
2562		return sna_tiling_composite_spans(op, src, dst,
2563						  src_x, src_y, dst_x, dst_y,
2564						  width, height, flags, tmp);
2565	}
2566
2567	tmp->base.op = op;
2568	if (!gen6_composite_set_target(sna, &tmp->base, dst,
2569				       dst_x, dst_y, width, height, true))
2570		return false;
2571
2572	switch (gen6_composite_picture(sna, src, &tmp->base.src,
2573				       src_x, src_y,
2574				       width, height,
2575				       dst_x, dst_y,
2576				       dst->polyMode == PolyModePrecise)) {
2577	case -1:
2578		goto cleanup_dst;
2579	case 0:
2580		if (!gen4_channel_init_solid(sna, &tmp->base.src, 0))
2581			goto cleanup_dst;
2582		/* fall through to fixup */
2583	case 1:
2584		gen6_composite_channel_convert(&tmp->base.src);
2585		break;
2586	}
2587	tmp->base.mask.bo = NULL;
2588
2589	tmp->base.is_affine = tmp->base.src.is_affine;
2590	tmp->base.need_magic_ca_pass = false;
2591
2592	tmp->base.u.gen6.flags =
2593		GEN6_SET_FLAGS(SAMPLER_OFFSET(tmp->base.src.filter,
2594					      tmp->base.src.repeat,
2595					      SAMPLER_FILTER_NEAREST,
2596					      SAMPLER_EXTEND_PAD),
2597			       gen6_get_blend(tmp->base.op, false, tmp->base.dst.format),
2598			       GEN6_WM_KERNEL_OPACITY | !tmp->base.is_affine,
2599			       gen4_choose_spans_emitter(sna, tmp));
2600
2601	tmp->box   = gen6_render_composite_spans_box;
2602	tmp->boxes = gen6_render_composite_spans_boxes;
2603	if (tmp->emit_boxes)
2604		tmp->thread_boxes = gen6_render_composite_spans_boxes__thread;
2605	tmp->done  = gen6_render_composite_spans_done;
2606
2607	kgem_set_mode(&sna->kgem, KGEM_RENDER, tmp->base.dst.bo);
2608	if (!kgem_check_bo(&sna->kgem,
2609			   tmp->base.dst.bo, tmp->base.src.bo,
2610			   NULL)) {
2611		kgem_submit(&sna->kgem);
2612		if (!kgem_check_bo(&sna->kgem,
2613				   tmp->base.dst.bo, tmp->base.src.bo,
2614				   NULL))
2615			goto cleanup_src;
2616		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
2617	}
2618
2619	gen6_align_vertex(sna, &tmp->base);
2620	gen6_emit_composite_state(sna, &tmp->base);
2621	return true;
2622
2623cleanup_src:
2624	if (tmp->base.src.bo)
2625		kgem_bo_destroy(&sna->kgem, tmp->base.src.bo);
2626cleanup_dst:
2627	if (tmp->base.redirect.real_bo)
2628		kgem_bo_destroy(&sna->kgem, tmp->base.dst.bo);
2629	return false;
2630}
2631#endif
2632
2633static void
2634gen6_emit_copy_state(struct sna *sna,
2635		     const struct sna_composite_op *op)
2636{
2637	uint32_t *binding_table;
2638	uint16_t offset;
2639	bool dirty;
2640
2641	dirty = gen6_get_batch(sna, op);
2642
2643	binding_table = gen6_composite_get_binding_table(sna, &offset);
2644
2645	binding_table[0] =
2646		gen6_bind_bo(sna,
2647			     op->dst.bo, op->dst.width, op->dst.height,
2648			     gen6_get_dest_format(op->dst.format),
2649			     true);
2650	binding_table[1] =
2651		gen6_bind_bo(sna,
2652			     op->src.bo, op->src.width, op->src.height,
2653			     op->src.card_format,
2654			     false);
2655
2656	if (sna->kgem.surface == offset &&
2657	    *(uint64_t *)(sna->kgem.batch + sna->render_state.gen6.surface_table) == *(uint64_t*)binding_table) {
2658		sna->kgem.surface += sizeof(struct gen6_surface_state_padded) / sizeof(uint32_t);
2659		offset = sna->render_state.gen6.surface_table;
2660	}
2661
2662	gen6_emit_state(sna, op, offset | dirty);
2663}
2664
2665static inline bool prefer_blt_copy(struct sna *sna,
2666				   struct kgem_bo *src_bo,
2667				   struct kgem_bo *dst_bo,
2668				   unsigned flags)
2669{
2670	if (flags & COPY_SYNC)
2671		return false;
2672
2673	if (PREFER_RENDER)
2674		return PREFER_RENDER > 0;
2675
2676	if (sna->kgem.ring == KGEM_BLT)
2677		return true;
2678
2679	if (src_bo == dst_bo && can_switch_to_blt(sna, dst_bo, flags))
2680		return true;
2681
2682	if (untiled_tlb_miss(src_bo) ||
2683	    untiled_tlb_miss(dst_bo))
2684		return true;
2685
2686	if (force_blt_ring(sna))
2687		return true;
2688
2689	if (kgem_bo_is_render(dst_bo) ||
2690	    kgem_bo_is_render(src_bo))
2691		return false;
2692
2693	if (prefer_render_ring(sna, dst_bo))
2694		return false;
2695
2696	if (!prefer_blt_ring(sna, dst_bo, flags))
2697		return false;
2698
2699	return prefer_blt_bo(sna, src_bo) || prefer_blt_bo(sna, dst_bo);
2700}
2701
2702static bool
2703gen6_render_copy_boxes(struct sna *sna, uint8_t alu,
2704		       const DrawableRec *src, struct kgem_bo *src_bo, int16_t src_dx, int16_t src_dy,
2705		       const DrawableRec *dst, struct kgem_bo *dst_bo, int16_t dst_dx, int16_t dst_dy,
2706		       const BoxRec *box, int n, unsigned flags)
2707{
2708	struct sna_composite_op tmp;
2709	BoxRec extents;
2710
2711	DBG(("%s (%d, %d)->(%d, %d) x %d, alu=%x, self-copy=%d, overlaps? %d\n",
2712	     __FUNCTION__, src_dx, src_dy, dst_dx, dst_dy, n, alu,
2713	     src_bo == dst_bo,
2714	     overlaps(sna,
2715		      src_bo, src_dx, src_dy,
2716		      dst_bo, dst_dx, dst_dy,
2717		      box, n, flags, &extents)));
2718
2719	if (prefer_blt_copy(sna, src_bo, dst_bo, flags) &&
2720	    sna_blt_compare_depth(src, dst) &&
2721	    sna_blt_copy_boxes(sna, alu,
2722			       src_bo, src_dx, src_dy,
2723			       dst_bo, dst_dx, dst_dy,
2724			       dst->bitsPerPixel,
2725			       box, n))
2726		return true;
2727
2728	if (!(alu == GXcopy || alu == GXclear)) {
2729fallback_blt:
2730		if (!sna_blt_compare_depth(src, dst))
2731			return false;
2732
2733		return sna_blt_copy_boxes_fallback(sna, alu,
2734						   src, src_bo, src_dx, src_dy,
2735						   dst, dst_bo, dst_dx, dst_dy,
2736						   box, n);
2737	}
2738
2739	if (overlaps(sna,
2740		     src_bo, src_dx, src_dy,
2741		     dst_bo, dst_dx, dst_dy,
2742		     box, n, flags,
2743		     &extents)) {
2744		bool big = too_large(extents.x2-extents.x1, extents.y2-extents.y1);
2745
2746		if ((big || can_switch_to_blt(sna, dst_bo, flags)) &&
2747		    sna_blt_copy_boxes(sna, alu,
2748				       src_bo, src_dx, src_dy,
2749				       dst_bo, dst_dx, dst_dy,
2750				       dst->bitsPerPixel,
2751				       box, n))
2752			return true;
2753
2754		if (big)
2755			goto fallback_blt;
2756
2757		assert(src_bo == dst_bo);
2758		assert(src->depth == dst->depth);
2759		assert(src->width == dst->width);
2760		assert(src->height == dst->height);
2761		return sna_render_copy_boxes__overlap(sna, alu,
2762						      src, src_bo,
2763						      src_dx, src_dy,
2764						      dst_dx, dst_dy,
2765						      box, n, &extents);
2766	}
2767
2768	if (dst->depth == src->depth) {
2769		tmp.dst.format = sna_render_format_for_depth(dst->depth);
2770		tmp.src.pict_format = tmp.dst.format;
2771	} else {
2772		tmp.dst.format = sna_format_for_depth(dst->depth);
2773		tmp.src.pict_format = sna_format_for_depth(src->depth);
2774	}
2775	if (!gen6_check_format(tmp.src.pict_format))
2776		goto fallback_blt;
2777
2778	tmp.dst.pixmap = (PixmapPtr)dst;
2779	tmp.dst.width  = dst->width;
2780	tmp.dst.height = dst->height;
2781	tmp.dst.bo = dst_bo;
2782	tmp.dst.x = tmp.dst.y = 0;
2783	tmp.damage = NULL;
2784
2785	sna_render_composite_redirect_init(&tmp);
2786	if (too_large(tmp.dst.width, tmp.dst.height)) {
2787		int i;
2788
2789		extents = box[0];
2790		for (i = 1; i < n; i++) {
2791			if (box[i].x1 < extents.x1)
2792				extents.x1 = box[i].x1;
2793			if (box[i].y1 < extents.y1)
2794				extents.y1 = box[i].y1;
2795
2796			if (box[i].x2 > extents.x2)
2797				extents.x2 = box[i].x2;
2798			if (box[i].y2 > extents.y2)
2799				extents.y2 = box[i].y2;
2800		}
2801
2802		if (!sna_render_composite_redirect(sna, &tmp,
2803						   extents.x1 + dst_dx,
2804						   extents.y1 + dst_dy,
2805						   extents.x2 - extents.x1,
2806						   extents.y2 - extents.y1,
2807						   n > 1))
2808			goto fallback_tiled;
2809	}
2810
2811	tmp.src.card_format = gen6_get_card_format(tmp.src.pict_format);
2812	if (too_large(src->width, src->height)) {
2813		int i;
2814
2815		extents = box[0];
2816		for (i = 1; i < n; i++) {
2817			if (box[i].x1 < extents.x1)
2818				extents.x1 = box[i].x1;
2819			if (box[i].y1 < extents.y1)
2820				extents.y1 = box[i].y1;
2821
2822			if (box[i].x2 > extents.x2)
2823				extents.x2 = box[i].x2;
2824			if (box[i].y2 > extents.y2)
2825				extents.y2 = box[i].y2;
2826		}
2827
2828		if (!sna_render_pixmap_partial(sna, src, src_bo, &tmp.src,
2829					       extents.x1 + src_dx,
2830					       extents.y1 + src_dy,
2831					       extents.x2 - extents.x1,
2832					       extents.y2 - extents.y1)) {
2833			DBG(("%s: unable to extract partial pixmap\n", __FUNCTION__));
2834			goto fallback_tiled_dst;
2835		}
2836	} else {
2837		tmp.src.bo = src_bo;
2838		tmp.src.width  = src->width;
2839		tmp.src.height = src->height;
2840		tmp.src.offset[0] = tmp.src.offset[1] = 0;
2841	}
2842
2843	tmp.mask.bo = NULL;
2844
2845	tmp.floats_per_vertex = 2;
2846	tmp.floats_per_rect = 6;
2847	tmp.need_magic_ca_pass = 0;
2848
2849	tmp.u.gen6.flags = COPY_FLAGS(alu);
2850	assert(GEN6_KERNEL(tmp.u.gen6.flags) == GEN6_WM_KERNEL_NOMASK);
2851	assert(GEN6_SAMPLER(tmp.u.gen6.flags) == COPY_SAMPLER);
2852	assert(GEN6_VERTEX(tmp.u.gen6.flags) == COPY_VERTEX);
2853
2854	kgem_set_mode(&sna->kgem, KGEM_RENDER, tmp.dst.bo);
2855	if (!kgem_check_bo(&sna->kgem, tmp.dst.bo, tmp.src.bo, NULL)) {
2856		kgem_submit(&sna->kgem);
2857		if (!kgem_check_bo(&sna->kgem, tmp.dst.bo, tmp.src.bo, NULL)) {
2858			DBG(("%s: too large for a single operation\n",
2859			     __FUNCTION__));
2860			if (tmp.src.bo != src_bo)
2861				kgem_bo_destroy(&sna->kgem, tmp.src.bo);
2862			if (tmp.redirect.real_bo)
2863				kgem_bo_destroy(&sna->kgem, tmp.dst.bo);
2864			goto fallback_blt;
2865		}
2866		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
2867	}
2868
2869	src_dx += tmp.src.offset[0];
2870	src_dy += tmp.src.offset[1];
2871
2872	dst_dx += tmp.dst.x;
2873	dst_dy += tmp.dst.y;
2874
2875	tmp.dst.x = tmp.dst.y = 0;
2876
2877	gen6_align_vertex(sna, &tmp);
2878	gen6_emit_copy_state(sna, &tmp);
2879
2880	do {
2881		int16_t *v;
2882		int n_this_time;
2883
2884		n_this_time = gen6_get_rectangles(sna, &tmp, n,
2885						  gen6_emit_copy_state);
2886		n -= n_this_time;
2887
2888		v = (int16_t *)(sna->render.vertices + sna->render.vertex_used);
2889		sna->render.vertex_used += 6 * n_this_time;
2890		assert(sna->render.vertex_used <= sna->render.vertex_size);
2891		do {
2892
2893			DBG(("	(%d, %d) -> (%d, %d) + (%d, %d)\n",
2894			     box->x1 + src_dx, box->y1 + src_dy,
2895			     box->x1 + dst_dx, box->y1 + dst_dy,
2896			     box->x2 - box->x1, box->y2 - box->y1));
2897			v[0] = box->x2 + dst_dx;
2898			v[2] = box->x2 + src_dx;
2899			v[1]  = v[5] = box->y2 + dst_dy;
2900			v[3]  = v[7] = box->y2 + src_dy;
2901			v[8]  = v[4] = box->x1 + dst_dx;
2902			v[10] = v[6] = box->x1 + src_dx;
2903			v[9]  = box->y1 + dst_dy;
2904			v[11] = box->y1 + src_dy;
2905			v += 12; box++;
2906		} while (--n_this_time);
2907	} while (n);
2908
2909	gen4_vertex_flush(sna);
2910	sna_render_composite_redirect_done(sna, &tmp);
2911	if (tmp.src.bo != src_bo)
2912		kgem_bo_destroy(&sna->kgem, tmp.src.bo);
2913	return true;
2914
2915fallback_tiled_dst:
2916	if (tmp.redirect.real_bo)
2917		kgem_bo_destroy(&sna->kgem, tmp.dst.bo);
2918fallback_tiled:
2919	if (sna_blt_compare_depth(src, dst) &&
2920	    sna_blt_copy_boxes(sna, alu,
2921			       src_bo, src_dx, src_dy,
2922			       dst_bo, dst_dx, dst_dy,
2923			       dst->bitsPerPixel,
2924			       box, n))
2925		return true;
2926
2927	return sna_tiling_copy_boxes(sna, alu,
2928				     src, src_bo, src_dx, src_dy,
2929				     dst, dst_bo, dst_dx, dst_dy,
2930				     box, n);
2931}
2932
2933static void
2934gen6_render_copy_blt(struct sna *sna,
2935		     const struct sna_copy_op *op,
2936		     int16_t sx, int16_t sy,
2937		     int16_t w,  int16_t h,
2938		     int16_t dx, int16_t dy)
2939{
2940	int16_t *v;
2941
2942	gen6_get_rectangles(sna, &op->base, 1, gen6_emit_copy_state);
2943
2944	v = (int16_t *)&sna->render.vertices[sna->render.vertex_used];
2945	sna->render.vertex_used += 6;
2946	assert(sna->render.vertex_used <= sna->render.vertex_size);
2947
2948	v[0]  = dx+w; v[1]  = dy+h;
2949	v[2]  = sx+w; v[3]  = sy+h;
2950	v[4]  = dx;   v[5]  = dy+h;
2951	v[6]  = sx;   v[7]  = sy+h;
2952	v[8]  = dx;   v[9]  = dy;
2953	v[10] = sx;   v[11] = sy;
2954}
2955
2956static void
2957gen6_render_copy_done(struct sna *sna, const struct sna_copy_op *op)
2958{
2959	DBG(("%s()\n", __FUNCTION__));
2960
2961	assert(!sna->render.active);
2962	if (sna->render.vertex_offset)
2963		gen4_vertex_flush(sna);
2964}
2965
2966static bool
2967gen6_render_copy(struct sna *sna, uint8_t alu,
2968		 PixmapPtr src, struct kgem_bo *src_bo,
2969		 PixmapPtr dst, struct kgem_bo *dst_bo,
2970		 struct sna_copy_op *op)
2971{
2972	DBG(("%s (alu=%d, src=(%dx%d), dst=(%dx%d))\n",
2973	     __FUNCTION__, alu,
2974	     src->drawable.width, src->drawable.height,
2975	     dst->drawable.width, dst->drawable.height));
2976
2977	if (prefer_blt_copy(sna, src_bo, dst_bo, 0) &&
2978	    sna_blt_compare_depth(&src->drawable, &dst->drawable) &&
2979	    sna_blt_copy(sna, alu,
2980			 src_bo, dst_bo,
2981			 dst->drawable.bitsPerPixel,
2982			 op))
2983		return true;
2984
2985	if (!(alu == GXcopy || alu == GXclear) || src_bo == dst_bo ||
2986	    too_large(src->drawable.width, src->drawable.height) ||
2987	    too_large(dst->drawable.width, dst->drawable.height)) {
2988fallback:
2989		if (!sna_blt_compare_depth(&src->drawable, &dst->drawable))
2990			return false;
2991
2992		return sna_blt_copy(sna, alu, src_bo, dst_bo,
2993				    dst->drawable.bitsPerPixel,
2994				    op);
2995	}
2996
2997	if (dst->drawable.depth == src->drawable.depth) {
2998		op->base.dst.format = sna_render_format_for_depth(dst->drawable.depth);
2999		op->base.src.pict_format = op->base.dst.format;
3000	} else {
3001		op->base.dst.format = sna_format_for_depth(dst->drawable.depth);
3002		op->base.src.pict_format = sna_format_for_depth(src->drawable.depth);
3003	}
3004	if (!gen6_check_format(op->base.src.pict_format))
3005		goto fallback;
3006
3007	op->base.dst.pixmap = dst;
3008	op->base.dst.width  = dst->drawable.width;
3009	op->base.dst.height = dst->drawable.height;
3010	op->base.dst.bo = dst_bo;
3011
3012	op->base.src.bo = src_bo;
3013	op->base.src.card_format =
3014		gen6_get_card_format(op->base.src.pict_format);
3015	op->base.src.width  = src->drawable.width;
3016	op->base.src.height = src->drawable.height;
3017
3018	op->base.mask.bo = NULL;
3019
3020	op->base.floats_per_vertex = 2;
3021	op->base.floats_per_rect = 6;
3022
3023	op->base.u.gen6.flags = COPY_FLAGS(alu);
3024	assert(GEN6_KERNEL(op->base.u.gen6.flags) == GEN6_WM_KERNEL_NOMASK);
3025	assert(GEN6_SAMPLER(op->base.u.gen6.flags) == COPY_SAMPLER);
3026	assert(GEN6_VERTEX(op->base.u.gen6.flags) == COPY_VERTEX);
3027
3028	kgem_set_mode(&sna->kgem, KGEM_RENDER, dst_bo);
3029	if (!kgem_check_bo(&sna->kgem, dst_bo, src_bo, NULL)) {
3030		kgem_submit(&sna->kgem);
3031		if (!kgem_check_bo(&sna->kgem, dst_bo, src_bo, NULL))
3032			goto fallback;
3033		_kgem_set_mode(&sna->kgem, KGEM_RENDER);
3034	}
3035
3036	gen6_align_vertex(sna, &op->base);
3037	gen6_emit_copy_state(sna, &op->base);
3038
3039	op->blt  = gen6_render_copy_blt;
3040	op->done = gen6_render_copy_done;
3041	return true;
3042}
3043
3044static void
3045gen6_emit_fill_state(struct sna *sna, const struct sna_composite_op *op)
3046{
3047	uint32_t *binding_table;
3048	uint16_t offset;
3049	bool dirty;
3050
3051	dirty = gen6_get_batch(sna, op);
3052
3053	binding_table = gen6_composite_get_binding_table(sna, &offset);
3054
3055	binding_table[0] =
3056		gen6_bind_bo(sna,
3057			     op->dst.bo, op->dst.width, op->dst.height,
3058			     gen6_get_dest_format(op->dst.format),
3059			     true);
3060	binding_table[1] =
3061		gen6_bind_bo(sna,
3062			     op->src.bo, 1, 1,
3063			     GEN6_SURFACEFORMAT_B8G8R8A8_UNORM,
3064			     false);
3065
3066	if (sna->kgem.surface == offset &&
3067	    *(uint64_t *)(sna->kgem.batch + sna->render_state.gen6.surface_table) == *(uint64_t*)binding_table) {
3068		sna->kgem.surface +=
3069			sizeof(struct gen6_surface_state_padded)/sizeof(uint32_t);
3070		offset = sna->render_state.gen6.surface_table;
3071	}
3072
3073	gen6_emit_state(sna, op, offset | dirty);
3074}
3075
3076static bool
3077gen6_render_fill_boxes(struct sna *sna,
3078		       CARD8 op,
3079		       PictFormat format,
3080		       const xRenderColor *color,
3081		       const DrawableRec *dst, struct kgem_bo *dst_bo,
3082		       const BoxRec *box, int n)
3083{
3084	struct sna_composite_op tmp;
3085	uint32_t pixel;
3086
3087	DBG(("%s (op=%d, color=(%04x, %04x, %04x, %04x) [%08x])\n",
3088	     __FUNCTION__, op,
3089	     color->red, color->green, color->blue, color->alpha, (int)format));
3090
3091	if (op >= ARRAY_SIZE(gen6_blend_op)) {
3092		DBG(("%s: fallback due to unhandled blend op: %d\n",
3093		     __FUNCTION__, op));
3094		return false;
3095	}
3096
3097	if (prefer_blt_fill(sna, dst_bo, FILL_BOXES) ||
3098	    !gen6_check_dst_format(format)) {
3099		uint8_t alu = GXinvalid;
3100
3101		if (op <= PictOpSrc) {
3102			pixel = 0;
3103			if (op == PictOpClear)
3104				alu = GXclear;
3105			else if (sna_get_pixel_from_rgba(&pixel,
3106							 color->red,
3107							 color->green,
3108							 color->blue,
3109							 color->alpha,
3110							 format))
3111				alu = GXcopy;
3112		}
3113
3114		if (alu != GXinvalid &&
3115		    sna_blt_fill_boxes(sna, alu,
3116				       dst_bo, dst->bitsPerPixel,
3117				       pixel, box, n))
3118			return true;
3119
3120		if (!gen6_check_dst_format(format))
3121			return false;
3122	}
3123
3124	if (op == PictOpClear) {
3125		pixel = 0;
3126		op = PictOpSrc;
3127	} else if (!sna_get_pixel_from_rgba(&pixel,
3128					    color->red,
3129					    color->green,
3130					    color->blue,
3131					    color->alpha,
3132					    PICT_a8r8g8b8))
3133		return false;
3134
3135	DBG(("%s(%08x x %d [(%d, %d), (%d, %d) ...])\n",
3136	     __FUNCTION__, pixel, n,
3137	     box[0].x1, box[0].y1, box[0].x2, box[0].y2));
3138
3139	tmp.dst.pixmap = (PixmapPtr)dst;
3140	tmp.dst.width  = dst->width;
3141	tmp.dst.height = dst->height;
3142	tmp.dst.format = format;
3143	tmp.dst.bo = dst_bo;
3144	tmp.dst.x = tmp.dst.y = 0;
3145	tmp.damage = NULL;
3146
3147	sna_render_composite_redirect_init(&tmp);
3148	if (too_large(dst->width, dst->height)) {
3149		BoxRec extents;
3150
3151		boxes_extents(box, n, &extents);
3152		if (!sna_render_composite_redirect(sna, &tmp,
3153						   extents.x1, extents.y1,
3154						   extents.x2 - extents.x1,
3155						   extents.y2 - extents.y1,
3156						   n > 1))
3157			return sna_tiling_fill_boxes(sna, op, format, color,
3158						     dst, dst_bo, box, n);
3159	}
3160
3161	tmp.src.bo = sna_render_get_solid(sna, pixel);
3162	tmp.mask.bo = NULL;
3163
3164	tmp.floats_per_vertex = 2;
3165	tmp.floats_per_rect = 6;
3166	tmp.need_magic_ca_pass = false;
3167
3168	tmp.u.gen6.flags = FILL_FLAGS(op, format);
3169	assert(GEN6_KERNEL(tmp.u.gen6.flags) == GEN6_WM_KERNEL_NOMASK);
3170	assert(GEN6_SAMPLER(tmp.u.gen6.flags) == FILL_SAMPLER);
3171	assert(GEN6_VERTEX(tmp.u.gen6.flags) == FILL_VERTEX);
3172
3173	kgem_set_mode(&sna->kgem, KGEM_RENDER, dst_bo);
3174	if (!kgem_check_bo(&sna->kgem, dst_bo, NULL)) {
3175		kgem_submit(&sna->kgem);
3176		assert(kgem_check_bo(&sna->kgem, dst_bo, NULL));
3177	}
3178
3179	gen6_align_vertex(sna, &tmp);
3180	gen6_emit_fill_state(sna, &tmp);
3181
3182	do {
3183		int n_this_time;
3184		int16_t *v;
3185
3186		n_this_time = gen6_get_rectangles(sna, &tmp, n,
3187						  gen6_emit_fill_state);
3188		n -= n_this_time;
3189
3190		v = (int16_t *)(sna->render.vertices + sna->render.vertex_used);
3191		sna->render.vertex_used += 6 * n_this_time;
3192		assert(sna->render.vertex_used <= sna->render.vertex_size);
3193		do {
3194			DBG(("	(%d, %d), (%d, %d)\n",
3195			     box->x1, box->y1, box->x2, box->y2));
3196
3197			v[0] = box->x2;
3198			v[5] = v[1] = box->y2;
3199			v[8] = v[4] = box->x1;
3200			v[9] = box->y1;
3201			v[2] = v[3]  = v[7]  = 1;
3202			v[6] = v[10] = v[11] = 0;
3203			v += 12; box++;
3204		} while (--n_this_time);
3205	} while (n);
3206
3207	gen4_vertex_flush(sna);
3208	kgem_bo_destroy(&sna->kgem, tmp.src.bo);
3209	sna_render_composite_redirect_done(sna, &tmp);
3210	return true;
3211}
3212
3213static void
3214gen6_render_op_fill_blt(struct sna *sna,
3215			const struct sna_fill_op *op,
3216			int16_t x, int16_t y, int16_t w, int16_t h)
3217{
3218	int16_t *v;
3219
3220	DBG(("%s: (%d, %d)x(%d, %d)\n", __FUNCTION__, x, y, w, h));
3221
3222	gen6_get_rectangles(sna, &op->base, 1, gen6_emit_fill_state);
3223
3224	v = (int16_t *)&sna->render.vertices[sna->render.vertex_used];
3225	sna->render.vertex_used += 6;
3226	assert(sna->render.vertex_used <= sna->render.vertex_size);
3227
3228	v[0] = x+w;
3229	v[4] = v[8] = x;
3230	v[1] = v[5] = y+h;
3231	v[9] = y;
3232
3233	v[2] = v[3]  = v[7]  = 1;
3234	v[6] = v[10] = v[11] = 0;
3235}
3236
3237fastcall static void
3238gen6_render_op_fill_box(struct sna *sna,
3239			const struct sna_fill_op *op,
3240			const BoxRec *box)
3241{
3242	int16_t *v;
3243
3244	DBG(("%s: (%d, %d),(%d, %d)\n", __FUNCTION__,
3245	     box->x1, box->y1, box->x2, box->y2));
3246
3247	gen6_get_rectangles(sna, &op->base, 1, gen6_emit_fill_state);
3248
3249	v = (int16_t *)&sna->render.vertices[sna->render.vertex_used];
3250	sna->render.vertex_used += 6;
3251	assert(sna->render.vertex_used <= sna->render.vertex_size);
3252
3253	v[0] = box->x2;
3254	v[8] = v[4] = box->x1;
3255	v[5] = v[1] = box->y2;
3256	v[9] = box->y1;
3257
3258	v[7] = v[2]  = v[3]  = 1;
3259	v[6] = v[10] = v[11] = 0;
3260}
3261
3262fastcall static void
3263gen6_render_op_fill_boxes(struct sna *sna,
3264			  const struct sna_fill_op *op,
3265			  const BoxRec *box,
3266			  int nbox)
3267{
3268	DBG(("%s: (%d, %d),(%d, %d)... x %d\n", __FUNCTION__,
3269	     box->x1, box->y1, box->x2, box->y2, nbox));
3270
3271	do {
3272		int nbox_this_time;
3273		int16_t *v;
3274
3275		nbox_this_time = gen6_get_rectangles(sna, &op->base, nbox,
3276						     gen6_emit_fill_state);
3277		nbox -= nbox_this_time;
3278
3279		v = (int16_t *)&sna->render.vertices[sna->render.vertex_used];
3280		sna->render.vertex_used += 6 * nbox_this_time;
3281		assert(sna->render.vertex_used <= sna->render.vertex_size);
3282
3283		do {
3284			v[0] = box->x2;
3285			v[8] = v[4] = box->x1;
3286			v[5] = v[1] = box->y2;
3287			v[9] = box->y1;
3288			v[7] = v[2]  = v[3]  = 1;
3289			v[6] = v[10] = v[11] = 0;
3290			box++; v += 12;
3291		} while (--nbox_this_time);
3292	} while (nbox);
3293}
3294
3295static void
3296gen6_render_op_fill_done(struct sna *sna, const struct sna_fill_op *op)
3297{
3298	DBG(("%s()\n", __FUNCTION__));
3299
3300	assert(!sna->render.active);
3301	if (sna->render.vertex_offset)
3302		gen4_vertex_flush(sna);
3303	kgem_bo_destroy(&sna->kgem, op->base.src.bo);
3304}
3305
3306static bool
3307gen6_render_fill(struct sna *sna, uint8_t alu,
3308		 PixmapPtr dst, struct kgem_bo *dst_bo,
3309		 uint32_t color, unsigned flags,
3310		 struct sna_fill_op *op)
3311{
3312	DBG(("%s: (alu=%d, color=%x)\n", __FUNCTION__, alu, color));
3313
3314	if (prefer_blt_fill(sna, dst_bo, flags) &&
3315	    sna_blt_fill(sna, alu,
3316			 dst_bo, dst->drawable.bitsPerPixel,
3317			 color,
3318			 op))
3319		return true;
3320
3321	if (!(alu == GXcopy || alu == GXclear) ||
3322	    too_large(dst->drawable.width, dst->drawable.height))
3323		return sna_blt_fill(sna, alu,
3324				    dst_bo, dst->drawable.bitsPerPixel,
3325				    color,
3326				    op);
3327
3328	if (alu == GXclear)
3329		color = 0;
3330
3331	op->base.dst.pixmap = dst;
3332	op->base.dst.width  = dst->drawable.width;
3333	op->base.dst.height = dst->drawable.height;
3334	op->base.dst.format = sna_format_for_depth(dst->drawable.depth);
3335	op->base.dst.bo = dst_bo;
3336	op->base.dst.x = op->base.dst.y = 0;
3337
3338	op->base.src.bo =
3339		sna_render_get_solid(sna,
3340				     sna_rgba_for_color(color,
3341							dst->drawable.depth));
3342	op->base.mask.bo = NULL;
3343
3344	op->base.need_magic_ca_pass = false;
3345	op->base.floats_per_vertex = 2;
3346	op->base.floats_per_rect = 6;
3347
3348	op->base.u.gen6.flags = FILL_FLAGS_NOBLEND;
3349	assert(GEN6_KERNEL(op->base.u.gen6.flags) == GEN6_WM_KERNEL_NOMASK);
3350	assert(GEN6_SAMPLER(op->base.u.gen6.flags) == FILL_SAMPLER);
3351	assert(GEN6_VERTEX(op->base.u.gen6.flags) == FILL_VERTEX);
3352
3353	kgem_set_mode(&sna->kgem, KGEM_RENDER, dst_bo);
3354	if (!kgem_check_bo(&sna->kgem, dst_bo, NULL)) {
3355		kgem_submit(&sna->kgem);
3356		assert(kgem_check_bo(&sna->kgem, dst_bo, NULL));
3357	}
3358
3359	gen6_align_vertex(sna, &op->base);
3360	gen6_emit_fill_state(sna, &op->base);
3361
3362	op->blt  = gen6_render_op_fill_blt;
3363	op->box  = gen6_render_op_fill_box;
3364	op->boxes = gen6_render_op_fill_boxes;
3365	op->points = NULL;
3366	op->done = gen6_render_op_fill_done;
3367	return true;
3368}
3369
3370static bool
3371gen6_render_fill_one_try_blt(struct sna *sna, PixmapPtr dst, struct kgem_bo *bo,
3372			     uint32_t color,
3373			     int16_t x1, int16_t y1, int16_t x2, int16_t y2,
3374			     uint8_t alu)
3375{
3376	BoxRec box;
3377
3378	box.x1 = x1;
3379	box.y1 = y1;
3380	box.x2 = x2;
3381	box.y2 = y2;
3382
3383	return sna_blt_fill_boxes(sna, alu,
3384				  bo, dst->drawable.bitsPerPixel,
3385				  color, &box, 1);
3386}
3387
3388static bool
3389gen6_render_fill_one(struct sna *sna, PixmapPtr dst, struct kgem_bo *bo,
3390		     uint32_t color,
3391		     int16_t x1, int16_t y1,
3392		     int16_t x2, int16_t y2,
3393		     uint8_t alu)
3394{
3395	struct sna_composite_op tmp;
3396	int16_t *v;
3397
3398	/* Prefer to use the BLT if already engaged */
3399	if (prefer_blt_fill(sna, bo, FILL_BOXES) &&
3400	    gen6_render_fill_one_try_blt(sna, dst, bo, color,
3401					 x1, y1, x2, y2, alu))
3402		return true;
3403
3404	/* Must use the BLT if we can't RENDER... */
3405	if (!(alu == GXcopy || alu == GXclear) ||
3406	    too_large(dst->drawable.width, dst->drawable.height))
3407		return gen6_render_fill_one_try_blt(sna, dst, bo, color,
3408						    x1, y1, x2, y2, alu);
3409
3410	if (alu == GXclear)
3411		color = 0;
3412
3413	tmp.dst.pixmap = dst;
3414	tmp.dst.width  = dst->drawable.width;
3415	tmp.dst.height = dst->drawable.height;
3416	tmp.dst.format = sna_format_for_depth(dst->drawable.depth);
3417	tmp.dst.bo = bo;
3418	tmp.dst.x = tmp.dst.y = 0;
3419
3420	tmp.src.bo =
3421		sna_render_get_solid(sna,
3422				     sna_rgba_for_color(color,
3423							dst->drawable.depth));
3424	tmp.mask.bo = NULL;
3425
3426	tmp.floats_per_vertex = 2;
3427	tmp.floats_per_rect = 6;
3428	tmp.need_magic_ca_pass = false;
3429
3430	tmp.u.gen6.flags = FILL_FLAGS_NOBLEND;
3431	assert(GEN6_KERNEL(tmp.u.gen6.flags) == GEN6_WM_KERNEL_NOMASK);
3432	assert(GEN6_SAMPLER(tmp.u.gen6.flags) == FILL_SAMPLER);
3433	assert(GEN6_VERTEX(tmp.u.gen6.flags) == FILL_VERTEX);
3434
3435	kgem_set_mode(&sna->kgem, KGEM_RENDER, bo);
3436	if (!kgem_check_bo(&sna->kgem, bo, NULL)) {
3437		kgem_submit(&sna->kgem);
3438		if (!kgem_check_bo(&sna->kgem, bo, NULL)) {
3439			kgem_bo_destroy(&sna->kgem, tmp.src.bo);
3440			return false;
3441		}
3442	}
3443
3444	gen6_align_vertex(sna, &tmp);
3445	gen6_emit_fill_state(sna, &tmp);
3446
3447	gen6_get_rectangles(sna, &tmp, 1, gen6_emit_fill_state);
3448
3449	DBG(("	(%d, %d), (%d, %d)\n", x1, y1, x2, y2));
3450
3451	v = (int16_t *)&sna->render.vertices[sna->render.vertex_used];
3452	sna->render.vertex_used += 6;
3453	assert(sna->render.vertex_used <= sna->render.vertex_size);
3454
3455	v[0] = x2;
3456	v[8] = v[4] = x1;
3457	v[5] = v[1] = y2;
3458	v[9] = y1;
3459	v[7] = v[2]  = v[3]  = 1;
3460	v[6] = v[10] = v[11] = 0;
3461
3462	gen4_vertex_flush(sna);
3463	kgem_bo_destroy(&sna->kgem, tmp.src.bo);
3464
3465	return true;
3466}
3467
3468static bool
3469gen6_render_clear_try_blt(struct sna *sna, PixmapPtr dst, struct kgem_bo *bo)
3470{
3471	BoxRec box;
3472
3473	box.x1 = 0;
3474	box.y1 = 0;
3475	box.x2 = dst->drawable.width;
3476	box.y2 = dst->drawable.height;
3477
3478	return sna_blt_fill_boxes(sna, GXclear,
3479				  bo, dst->drawable.bitsPerPixel,
3480				  0, &box, 1);
3481}
3482
3483static bool
3484gen6_render_clear(struct sna *sna, PixmapPtr dst, struct kgem_bo *bo)
3485{
3486	struct sna_composite_op tmp;
3487	int16_t *v;
3488
3489	DBG(("%s: %dx%d\n",
3490	     __FUNCTION__,
3491	     dst->drawable.width,
3492	     dst->drawable.height));
3493
3494	/* Prefer to use the BLT if, and only if, already engaged */
3495	if (sna->kgem.ring == KGEM_BLT &&
3496	    gen6_render_clear_try_blt(sna, dst, bo))
3497		return true;
3498
3499	/* Must use the BLT if we can't RENDER... */
3500	if (too_large(dst->drawable.width, dst->drawable.height))
3501		return gen6_render_clear_try_blt(sna, dst, bo);
3502
3503	tmp.dst.pixmap = dst;
3504	tmp.dst.width  = dst->drawable.width;
3505	tmp.dst.height = dst->drawable.height;
3506	tmp.dst.format = sna_format_for_depth(dst->drawable.depth);
3507	tmp.dst.bo = bo;
3508	tmp.dst.x = tmp.dst.y = 0;
3509
3510	tmp.src.bo = sna_render_get_solid(sna, 0);
3511	tmp.mask.bo = NULL;
3512
3513	tmp.floats_per_vertex = 2;
3514	tmp.floats_per_rect = 6;
3515	tmp.need_magic_ca_pass = false;
3516
3517	tmp.u.gen6.flags = FILL_FLAGS_NOBLEND;
3518	assert(GEN6_KERNEL(tmp.u.gen6.flags) == GEN6_WM_KERNEL_NOMASK);
3519	assert(GEN6_SAMPLER(tmp.u.gen6.flags) == FILL_SAMPLER);
3520	assert(GEN6_VERTEX(tmp.u.gen6.flags) == FILL_VERTEX);
3521
3522	kgem_set_mode(&sna->kgem, KGEM_RENDER, bo);
3523	if (!kgem_check_bo(&sna->kgem, bo, NULL)) {
3524		kgem_submit(&sna->kgem);
3525		if (!kgem_check_bo(&sna->kgem, bo, NULL)) {
3526			kgem_bo_destroy(&sna->kgem, tmp.src.bo);
3527			return false;
3528		}
3529	}
3530
3531	gen6_align_vertex(sna, &tmp);
3532	gen6_emit_fill_state(sna, &tmp);
3533
3534	gen6_get_rectangles(sna, &tmp, 1, gen6_emit_fill_state);
3535
3536	v = (int16_t *)&sna->render.vertices[sna->render.vertex_used];
3537	sna->render.vertex_used += 6;
3538	assert(sna->render.vertex_used <= sna->render.vertex_size);
3539
3540	v[0] = dst->drawable.width;
3541	v[5] = v[1] = dst->drawable.height;
3542	v[8] = v[4] = 0;
3543	v[9] = 0;
3544
3545	v[7] = v[2]  = v[3]  = 1;
3546	v[6] = v[10] = v[11] = 0;
3547
3548	gen4_vertex_flush(sna);
3549	kgem_bo_destroy(&sna->kgem, tmp.src.bo);
3550
3551	return true;
3552}
3553
3554static void gen6_render_reset(struct sna *sna)
3555{
3556	sna->render_state.gen6.needs_invariant = true;
3557	sna->render_state.gen6.first_state_packet = true;
3558	sna->render_state.gen6.ve_id = 3 << 2;
3559	sna->render_state.gen6.last_primitive = -1;
3560
3561	sna->render_state.gen6.num_sf_outputs = 0;
3562	sna->render_state.gen6.samplers = -1;
3563	sna->render_state.gen6.blend = -1;
3564	sna->render_state.gen6.kernel = -1;
3565	sna->render_state.gen6.drawrect_offset = -1;
3566	sna->render_state.gen6.drawrect_limit = -1;
3567	sna->render_state.gen6.surface_table = -1;
3568
3569	if (sna->render.vbo && !kgem_bo_can_map(&sna->kgem, sna->render.vbo)) {
3570		DBG(("%s: discarding unmappable vbo\n", __FUNCTION__));
3571		discard_vbo(sna);
3572	}
3573
3574	sna->render.vertex_offset = 0;
3575	sna->render.nvertex_reloc = 0;
3576	sna->render.vb_id = 0;
3577}
3578
3579static void gen6_render_fini(struct sna *sna)
3580{
3581	kgem_bo_destroy(&sna->kgem, sna->render_state.gen6.general_bo);
3582}
3583
3584static bool is_gt2(struct sna *sna, int devid)
3585{
3586	return devid & 0x30;
3587}
3588
3589static bool is_mobile(struct sna *sna, int devid)
3590{
3591	return (devid & 0xf) == 0x6;
3592}
3593
3594static bool gen6_render_setup(struct sna *sna, int devid)
3595{
3596	struct gen6_render_state *state = &sna->render_state.gen6;
3597	struct sna_static_stream general;
3598	struct gen6_sampler_state *ss;
3599	int i, j, k, l, m;
3600
3601	state->info = &gt1_info;
3602	if (is_gt2(sna, devid))
3603		state->info = &gt2_info; /* XXX requires GT_MODE WiZ disabled */
3604	state->gt = state->info->gt;
3605
3606	sna_static_stream_init(&general);
3607
3608	/* Zero pad the start. If you see an offset of 0x0 in the batchbuffer
3609	 * dumps, you know it points to zero.
3610	 */
3611	null_create(&general);
3612	scratch_create(&general);
3613
3614	for (m = 0; m < GEN6_KERNEL_COUNT; m++) {
3615		if (wm_kernels[m].size) {
3616			state->wm_kernel[m][1] =
3617				sna_static_stream_add(&general,
3618						      wm_kernels[m].data,
3619						      wm_kernels[m].size,
3620						      64);
3621		} else {
3622			if (USE_8_PIXEL_DISPATCH) {
3623				state->wm_kernel[m][0] =
3624					sna_static_stream_compile_wm(sna, &general,
3625								     wm_kernels[m].data, 8);
3626			}
3627
3628			if (USE_16_PIXEL_DISPATCH) {
3629				state->wm_kernel[m][1] =
3630					sna_static_stream_compile_wm(sna, &general,
3631								     wm_kernels[m].data, 16);
3632			}
3633
3634			if (USE_32_PIXEL_DISPATCH) {
3635				state->wm_kernel[m][2] =
3636					sna_static_stream_compile_wm(sna, &general,
3637								     wm_kernels[m].data, 32);
3638			}
3639		}
3640		if ((state->wm_kernel[m][0]|state->wm_kernel[m][1]|state->wm_kernel[m][2]) == 0) {
3641			state->wm_kernel[m][1] =
3642				sna_static_stream_compile_wm(sna, &general,
3643							     wm_kernels[m].data, 16);
3644		}
3645	}
3646
3647	ss = sna_static_stream_map(&general,
3648				   2 * sizeof(*ss) *
3649				   (2 +
3650				    FILTER_COUNT * EXTEND_COUNT *
3651				    FILTER_COUNT * EXTEND_COUNT),
3652				   32);
3653	state->wm_state = sna_static_stream_offsetof(&general, ss);
3654	sampler_copy_init(ss); ss += 2;
3655	sampler_fill_init(ss); ss += 2;
3656	for (i = 0; i < FILTER_COUNT; i++) {
3657		for (j = 0; j < EXTEND_COUNT; j++) {
3658			for (k = 0; k < FILTER_COUNT; k++) {
3659				for (l = 0; l < EXTEND_COUNT; l++) {
3660					sampler_state_init(ss++, i, j);
3661					sampler_state_init(ss++, k, l);
3662				}
3663			}
3664		}
3665	}
3666
3667	state->cc_blend = gen6_composite_create_blend_state(&general);
3668
3669	state->general_bo = sna_static_stream_fini(sna, &general);
3670	return state->general_bo != NULL;
3671}
3672
3673const char *gen6_render_init(struct sna *sna, const char *backend)
3674{
3675	int devid = intel_get_device_id(sna->dev);
3676
3677	if (!gen6_render_setup(sna, devid))
3678		return backend;
3679
3680	sna->kgem.context_switch = gen6_render_context_switch;
3681	sna->kgem.retire = gen6_render_retire;
3682	sna->kgem.expire = gen4_render_expire;
3683
3684#if !NO_COMPOSITE
3685	sna->render.composite = gen6_render_composite;
3686	sna->render.prefer_gpu |= PREFER_GPU_RENDER;
3687#endif
3688
3689#if !NO_COMPOSITE_SPANS
3690	sna->render.check_composite_spans = gen6_check_composite_spans;
3691	sna->render.composite_spans = gen6_render_composite_spans;
3692	if (is_mobile(sna, devid))
3693		sna->render.prefer_gpu |= PREFER_GPU_SPANS;
3694#endif
3695	sna->render.video = gen6_render_video;
3696
3697#if !NO_COPY_BOXES
3698	sna->render.copy_boxes = gen6_render_copy_boxes;
3699#endif
3700#if !NO_COPY
3701	sna->render.copy = gen6_render_copy;
3702#endif
3703
3704#if !NO_FILL_BOXES
3705	sna->render.fill_boxes = gen6_render_fill_boxes;
3706#endif
3707#if !NO_FILL
3708	sna->render.fill = gen6_render_fill;
3709#endif
3710#if !NO_FILL_ONE
3711	sna->render.fill_one = gen6_render_fill_one;
3712#endif
3713#if !NO_FILL_CLEAR
3714	sna->render.clear = gen6_render_clear;
3715#endif
3716
3717	sna->render.flush = gen4_render_flush;
3718	sna->render.reset = gen6_render_reset;
3719	sna->render.fini = gen6_render_fini;
3720
3721	sna->render.max_3d_size = GEN6_MAX_SIZE;
3722	sna->render.max_3d_pitch = 1 << 18;
3723	return sna->render_state.gen6.info->name;
3724}
3725