1/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3/*
4 * Copyright (C) 2012 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 FREEDRENO_DRAW_H_
30#define FREEDRENO_DRAW_H_
31
32#include "pipe/p_state.h"
33#include "pipe/p_context.h"
34
35#include "freedreno_context.h"
36#include "freedreno_resource.h"
37#include "freedreno_screen.h"
38#include "freedreno_util.h"
39
40struct fd_ringbuffer;
41
42void fd_draw_init(struct pipe_context *pctx);
43
44static inline void
45fd_draw(struct fd_batch *batch, struct fd_ringbuffer *ring,
46		enum pc_di_primtype primtype,
47		enum pc_di_vis_cull_mode vismode,
48		enum pc_di_src_sel src_sel, uint32_t count,
49		uint8_t instances,
50		enum pc_di_index_size idx_type,
51		uint32_t idx_size, uint32_t idx_offset,
52		struct pipe_resource *idx_buffer)
53{
54	/* for debug after a lock up, write a unique counter value
55	 * to scratch7 for each draw, to make it easier to match up
56	 * register dumps to cmdstream.  The combination of IB
57	 * (scratch6) and DRAW is enough to "triangulate" the
58	 * particular draw that caused lockup.
59	 */
60	emit_marker(ring, 7);
61
62	if (is_a3xx_p0(batch->ctx->screen)) {
63		/* dummy-draw workaround: */
64		OUT_PKT3(ring, CP_DRAW_INDX, 3);
65		OUT_RING(ring, 0x00000000);
66		OUT_RING(ring, DRAW(1, DI_SRC_SEL_AUTO_INDEX,
67							INDEX_SIZE_IGN, USE_VISIBILITY, 0));
68		OUT_RING(ring, 0);             /* NumIndices */
69
70		/* ugg, hard-code register offset to avoid pulling in the
71		 * a3xx register headers into something #included from a2xx
72		 */
73		OUT_PKT0(ring, 0x2206, 1);     /* A3XX_HLSQ_CONST_VSPRESV_RANGE_REG */
74		OUT_RING(ring, 0);
75	}
76
77	OUT_PKT3(ring, CP_DRAW_INDX, idx_buffer ? 5 : 3);
78	OUT_RING(ring, 0x00000000);        /* viz query info. */
79	if (vismode == USE_VISIBILITY) {
80		/* leave vis mode blank for now, it will be patched up when
81		 * we know if we are binning or not
82		 */
83		OUT_RINGP(ring, DRAW(primtype, src_sel, idx_type, 0, instances),
84				&batch->draw_patches);
85	} else {
86		OUT_RING(ring, DRAW(primtype, src_sel, idx_type, vismode, instances));
87	}
88	OUT_RING(ring, count);             /* NumIndices */
89	if (idx_buffer) {
90		OUT_RELOC(ring, fd_resource(idx_buffer)->bo, idx_offset, 0, 0);
91		OUT_RING (ring, idx_size);
92	}
93
94	emit_marker(ring, 7);
95
96	fd_reset_wfi(batch);
97}
98
99
100static inline enum pc_di_index_size
101size2indextype(unsigned index_size)
102{
103	switch (index_size) {
104	case 1: return INDEX_SIZE_8_BIT;
105	case 2: return INDEX_SIZE_16_BIT;
106	case 4: return INDEX_SIZE_32_BIT;
107	}
108	DBG("unsupported index size: %d", index_size);
109	assert(0);
110	return INDEX_SIZE_IGN;
111}
112
113/* this is same for a2xx/a3xx, so split into helper: */
114static inline void
115fd_draw_emit(struct fd_batch *batch, struct fd_ringbuffer *ring,
116		enum pc_di_primtype primtype,
117		enum pc_di_vis_cull_mode vismode,
118		const struct pipe_draw_info *info)
119{
120	struct pipe_resource *idx_buffer = NULL;
121	enum pc_di_index_size idx_type = INDEX_SIZE_IGN;
122	enum pc_di_src_sel src_sel;
123	uint32_t idx_size, idx_offset;
124
125	if (info->indexed) {
126		struct pipe_index_buffer *idx = &batch->ctx->indexbuf;
127
128		assert(!idx->user_buffer);
129
130		idx_buffer = idx->buffer;
131		idx_type = size2indextype(idx->index_size);
132		idx_size = idx->index_size * info->count;
133		idx_offset = idx->offset + (info->start * idx->index_size);
134		src_sel = DI_SRC_SEL_DMA;
135	} else {
136		idx_buffer = NULL;
137		idx_type = INDEX_SIZE_IGN;
138		idx_size = 0;
139		idx_offset = 0;
140		src_sel = DI_SRC_SEL_AUTO_INDEX;
141	}
142
143	fd_draw(batch, ring, primtype, vismode, src_sel,
144			info->count, info->instance_count - 1,
145			idx_type, idx_size, idx_offset, idx_buffer);
146}
147
148#endif /* FREEDRENO_DRAW_H_ */
149