1 /*
2 * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors:
24 * Rob Clark <robclark@freedesktop.org>
25 */
26
27 #ifndef FREEDRENO_DRAW_H_
28 #define FREEDRENO_DRAW_H_
29
30 #include "pipe/p_state.h"
31 #include "pipe/p_context.h"
32
33 #include "freedreno_context.h"
34 #include "freedreno_resource.h"
35 #include "freedreno_screen.h"
36 #include "freedreno_util.h"
37
38 struct fd_ringbuffer;
39
40 void fd_draw_init(struct pipe_context *pctx);
41
42 static inline void
fd_draw(struct fd_batch * batch,struct fd_ringbuffer * ring,enum pc_di_primtype primtype,enum pc_di_vis_cull_mode vismode,enum pc_di_src_sel src_sel,uint32_t count,uint8_t instances,enum pc_di_index_size idx_type,uint32_t idx_size,uint32_t idx_offset,struct pipe_resource * idx_buffer)43 fd_draw(struct fd_batch *batch, struct fd_ringbuffer *ring,
44 enum pc_di_primtype primtype,
45 enum pc_di_vis_cull_mode vismode,
46 enum pc_di_src_sel src_sel, uint32_t count,
47 uint8_t instances,
48 enum pc_di_index_size idx_type,
49 uint32_t idx_size, uint32_t idx_offset,
50 struct pipe_resource *idx_buffer)
51 {
52 /* for debug after a lock up, write a unique counter value
53 * to scratch7 for each draw, to make it easier to match up
54 * register dumps to cmdstream. The combination of IB
55 * (scratch6) and DRAW is enough to "triangulate" the
56 * particular draw that caused lockup.
57 */
58 emit_marker(ring, 7);
59
60 if (is_a3xx_p0(batch->ctx->screen)) {
61 /* dummy-draw workaround: */
62 OUT_PKT3(ring, CP_DRAW_INDX, 3);
63 OUT_RING(ring, 0x00000000);
64 OUT_RING(ring, DRAW(1, DI_SRC_SEL_AUTO_INDEX,
65 INDEX_SIZE_IGN, USE_VISIBILITY, 0));
66 OUT_RING(ring, 0); /* NumIndices */
67
68 /* ugg, hard-code register offset to avoid pulling in the
69 * a3xx register headers into something #included from a2xx
70 */
71 OUT_PKT0(ring, 0x2206, 1); /* A3XX_HLSQ_CONST_VSPRESV_RANGE_REG */
72 OUT_RING(ring, 0);
73 }
74
75 if (is_a20x(batch->ctx->screen)) {
76 /* a20x has a different draw command for drawing with binning data
77 * note: if we do patching we will have to insert a NOP
78 *
79 * binning data is is 1 byte/vertex (8x8x4 bin position of vertex)
80 * base ptr set by the CP_SET_DRAW_INIT_FLAGS command
81 *
82 * TODO: investigate the faceness_cull_select parameter to see how
83 * it is used with hw binning to use "faceness" bits
84 */
85 uint32_t size = 2;
86 if (vismode)
87 size += 2;
88 if (idx_buffer)
89 size += 2;
90
91 BEGIN_RING(ring, size+1);
92 if (vismode)
93 util_dynarray_append(&batch->draw_patches, uint32_t*, ring->cur);
94
95 OUT_PKT3(ring, vismode ? CP_DRAW_INDX_BIN : CP_DRAW_INDX, size);
96 OUT_RING(ring, 0x00000000);
97 OUT_RING(ring, DRAW_A20X(primtype, DI_FACE_CULL_NONE, src_sel,
98 idx_type, vismode, vismode, count));
99 if (vismode == USE_VISIBILITY) {
100 OUT_RING(ring, batch->num_vertices);
101 OUT_RING(ring, count);
102 }
103 } else {
104 OUT_PKT3(ring, CP_DRAW_INDX, idx_buffer ? 5 : 3);
105 OUT_RING(ring, 0x00000000); /* viz query info. */
106 if (vismode == USE_VISIBILITY) {
107 /* leave vis mode blank for now, it will be patched up when
108 * we know if we are binning or not
109 */
110 OUT_RINGP(ring, DRAW(primtype, src_sel, idx_type, 0, instances),
111 &batch->draw_patches);
112 } else {
113 OUT_RING(ring, DRAW(primtype, src_sel, idx_type, vismode, instances));
114 }
115 OUT_RING(ring, count); /* NumIndices */
116 }
117
118 if (idx_buffer) {
119 OUT_RELOC(ring, fd_resource(idx_buffer)->bo, idx_offset, 0, 0);
120 OUT_RING (ring, idx_size);
121 }
122
123 emit_marker(ring, 7);
124
125 fd_reset_wfi(batch);
126 }
127
128
129 static inline enum pc_di_index_size
size2indextype(unsigned index_size)130 size2indextype(unsigned index_size)
131 {
132 switch (index_size) {
133 case 1: return INDEX_SIZE_8_BIT;
134 case 2: return INDEX_SIZE_16_BIT;
135 case 4: return INDEX_SIZE_32_BIT;
136 }
137 DBG("unsupported index size: %d", index_size);
138 assert(0);
139 return INDEX_SIZE_IGN;
140 }
141
142 /* this is same for a2xx/a3xx, so split into helper: */
143 static inline void
fd_draw_emit(struct fd_batch * batch,struct fd_ringbuffer * ring,enum pc_di_primtype primtype,enum pc_di_vis_cull_mode vismode,const struct pipe_draw_info * info,unsigned index_offset)144 fd_draw_emit(struct fd_batch *batch, struct fd_ringbuffer *ring,
145 enum pc_di_primtype primtype,
146 enum pc_di_vis_cull_mode vismode,
147 const struct pipe_draw_info *info,
148 unsigned index_offset)
149 {
150 struct pipe_resource *idx_buffer = NULL;
151 enum pc_di_index_size idx_type = INDEX_SIZE_IGN;
152 enum pc_di_src_sel src_sel;
153 uint32_t idx_size, idx_offset;
154
155 if (info->index_size) {
156 assert(!info->has_user_indices);
157
158 idx_buffer = info->index.resource;
159 idx_type = size2indextype(info->index_size);
160 idx_size = info->index_size * info->count;
161 idx_offset = index_offset + info->start * info->index_size;
162 src_sel = DI_SRC_SEL_DMA;
163 } else {
164 idx_buffer = NULL;
165 idx_type = INDEX_SIZE_IGN;
166 idx_size = 0;
167 idx_offset = 0;
168 src_sel = DI_SRC_SEL_AUTO_INDEX;
169 }
170
171 fd_draw(batch, ring, primtype, vismode, src_sel,
172 info->count, info->instance_count - 1,
173 idx_type, idx_size, idx_offset, idx_buffer);
174 }
175
176 #endif /* FREEDRENO_DRAW_H_ */
177