1/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3/*
4 * Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * Authors:
26 *    Rob Clark <robclark@freedesktop.org>
27 */
28
29#ifndef FD4_DRAW_H_
30#define FD4_DRAW_H_
31
32#include "pipe/p_context.h"
33
34#include "freedreno_draw.h"
35
36void fd4_draw_init(struct pipe_context *pctx);
37
38/* draw packet changed on a4xx, so cannot reuse one from a2xx/a3xx.. */
39
40static inline uint32_t DRAW4(enum pc_di_primtype prim_type,
41		enum pc_di_src_sel source_select, enum a4xx_index_size index_size,
42		enum pc_di_vis_cull_mode vis_cull_mode)
43{
44	return CP_DRAW_INDX_OFFSET_0_PRIM_TYPE(prim_type) |
45			CP_DRAW_INDX_OFFSET_0_SOURCE_SELECT(source_select) |
46			CP_DRAW_INDX_OFFSET_0_INDEX_SIZE(index_size) |
47			CP_DRAW_INDX_OFFSET_0_VIS_CULL(vis_cull_mode);
48}
49
50static inline void
51fd4_draw(struct fd_batch *batch, struct fd_ringbuffer *ring,
52		enum pc_di_primtype primtype,
53		enum pc_di_vis_cull_mode vismode,
54		enum pc_di_src_sel src_sel, uint32_t count,
55		uint32_t instances, enum a4xx_index_size idx_type,
56		uint32_t idx_size, uint32_t idx_offset,
57		struct pipe_resource *idx_buffer)
58{
59	/* for debug after a lock up, write a unique counter value
60	 * to scratch7 for each draw, to make it easier to match up
61	 * register dumps to cmdstream.  The combination of IB
62	 * (scratch6) and DRAW is enough to "triangulate" the
63	 * particular draw that caused lockup.
64	 */
65	emit_marker(ring, 7);
66
67	OUT_PKT3(ring, CP_DRAW_INDX_OFFSET, idx_buffer ? 6 : 3);
68	if (vismode == USE_VISIBILITY) {
69		/* leave vis mode blank for now, it will be patched up when
70		 * we know if we are binning or not
71		 */
72		OUT_RINGP(ring, DRAW4(primtype, src_sel, idx_type, 0),
73				&batch->draw_patches);
74	} else {
75		OUT_RING(ring, DRAW4(primtype, src_sel, idx_type, vismode));
76	}
77	OUT_RING(ring, instances);         /* NumInstances */
78	OUT_RING(ring, count);             /* NumIndices */
79	if (idx_buffer) {
80		OUT_RING(ring, 0x0);           /* XXX */
81		OUT_RELOC(ring, fd_resource(idx_buffer)->bo, idx_offset, 0, 0);
82		OUT_RING (ring, idx_size);
83	}
84
85	emit_marker(ring, 7);
86
87	fd_reset_wfi(batch);
88}
89
90static inline enum a4xx_index_size
91fd4_size2indextype(unsigned index_size)
92{
93	switch (index_size) {
94	case 1: return INDEX4_SIZE_8_BIT;
95	case 2: return INDEX4_SIZE_16_BIT;
96	case 4: return INDEX4_SIZE_32_BIT;
97	}
98	DBG("unsupported index size: %d", index_size);
99	assert(0);
100	return INDEX4_SIZE_32_BIT;
101}
102
103static inline void
104fd4_draw_emit(struct fd_batch *batch, struct fd_ringbuffer *ring,
105		enum pc_di_primtype primtype,
106		enum pc_di_vis_cull_mode vismode,
107		const struct pipe_draw_info *info)
108{
109	struct pipe_resource *idx_buffer = NULL;
110	enum a4xx_index_size idx_type;
111	enum pc_di_src_sel src_sel;
112	uint32_t idx_size, idx_offset;
113
114	if (info->indexed) {
115		struct pipe_index_buffer *idx = &batch->ctx->indexbuf;
116
117		assert(!idx->user_buffer);
118
119		idx_buffer = idx->buffer;
120		idx_type = fd4_size2indextype(idx->index_size);
121		idx_size = idx->index_size * info->count;
122		idx_offset = idx->offset + (info->start * idx->index_size);
123		src_sel = DI_SRC_SEL_DMA;
124	} else {
125		idx_buffer = NULL;
126		idx_type = INDEX4_SIZE_32_BIT;
127		idx_size = 0;
128		idx_offset = 0;
129		src_sel = DI_SRC_SEL_AUTO_INDEX;
130	}
131
132	fd4_draw(batch, ring, primtype, vismode, src_sel,
133			info->count, info->instance_count,
134			idx_type, idx_size, idx_offset, idx_buffer);
135}
136
137#endif /* FD4_DRAW_H_ */
138