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_context.h"
31 #include "pipe/p_state.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, enum pc_di_vis_cull_mode vismode,
45 enum pc_di_src_sel src_sel, uint32_t count, uint8_t instances,
46 enum pc_di_index_size idx_type, uint32_t idx_size, uint32_t idx_offset,
47 struct pipe_resource *idx_buffer)
48 {
49 /* for debug after a lock up, write a unique counter value
50 * to scratch7 for each draw, to make it easier to match up
51 * register dumps to cmdstream. The combination of IB
52 * (scratch6) and DRAW is enough to "triangulate" the
53 * particular draw that caused lockup.
54 */
55 emit_marker(ring, 7);
56
57 if (is_a3xx_p0(batch->ctx->screen)) {
58 /* dummy-draw workaround: */
59 OUT_PKT3(ring, CP_DRAW_INDX, 3);
60 OUT_RING(ring, 0x00000000);
61 OUT_RING(ring, DRAW(1, DI_SRC_SEL_AUTO_INDEX, INDEX_SIZE_IGN,
62 USE_VISIBILITY, 0));
63 OUT_RING(ring, 0); /* NumIndices */
64
65 /* ugg, hard-code register offset to avoid pulling in the
66 * a3xx register headers into something #included from a2xx
67 */
68 OUT_PKT0(ring, 0x2206, 1); /* A3XX_HLSQ_CONST_VSPRESV_RANGE_REG */
69 OUT_RING(ring, 0);
70 }
71
72 if (is_a20x(batch->ctx->screen)) {
73 /* a20x has a different draw command for drawing with binning data
74 * note: if we do patching we will have to insert a NOP
75 *
76 * binning data is is 1 byte/vertex (8x8x4 bin position of vertex)
77 * base ptr set by the CP_SET_DRAW_INIT_FLAGS command
78 *
79 * TODO: investigate the faceness_cull_select parameter to see how
80 * it is used with hw binning to use "faceness" bits
81 */
82 uint32_t size = 2;
83 if (vismode)
84 size += 2;
85 if (idx_buffer)
86 size += 2;
87
88 BEGIN_RING(ring, size + 1);
89 if (vismode)
90 util_dynarray_append(&batch->draw_patches, uint32_t *, ring->cur);
91
92 OUT_PKT3(ring, vismode ? CP_DRAW_INDX_BIN : CP_DRAW_INDX, size);
93 OUT_RING(ring, 0x00000000);
94 OUT_RING(ring, DRAW_A20X(primtype, DI_FACE_CULL_NONE, src_sel, idx_type,
95 vismode, vismode, count));
96 if (vismode == USE_VISIBILITY) {
97 OUT_RING(ring, batch->num_vertices);
98 OUT_RING(ring, count);
99 }
100 } else {
101 OUT_PKT3(ring, CP_DRAW_INDX, idx_buffer ? 5 : 3);
102 OUT_RING(ring, 0x00000000); /* viz query info. */
103 if (vismode == USE_VISIBILITY) {
104 /* leave vis mode blank for now, it will be patched up when
105 * we know if we are binning or not
106 */
107 OUT_RINGP(ring, DRAW(primtype, src_sel, idx_type, 0, instances),
108 &batch->draw_patches);
109 } else {
110 OUT_RING(ring, DRAW(primtype, src_sel, idx_type, vismode, instances));
111 }
112 OUT_RING(ring, count); /* NumIndices */
113 }
114
115 if (idx_buffer) {
116 OUT_RELOC(ring, fd_resource(idx_buffer)->bo, idx_offset, 0, 0);
117 OUT_RING(ring, idx_size);
118 }
119
120 emit_marker(ring, 7);
121
122 fd_reset_wfi(batch);
123 }
124
125 static inline enum pc_di_index_size
size2indextype(unsigned index_size)126 size2indextype(unsigned index_size)
127 {
128 switch (index_size) {
129 case 1:
130 return INDEX_SIZE_8_BIT;
131 case 2:
132 return INDEX_SIZE_16_BIT;
133 case 4:
134 return INDEX_SIZE_32_BIT;
135 }
136 DBG("unsupported index size: %d", index_size);
137 assert(0);
138 return INDEX_SIZE_IGN;
139 }
140
141 /* this is same for a2xx/a3xx, so split into helper: */
142 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,const struct pipe_draw_start_count_bias * draw,unsigned index_offset)143 fd_draw_emit(struct fd_batch *batch, struct fd_ringbuffer *ring,
144 enum pc_di_primtype primtype, enum pc_di_vis_cull_mode vismode,
145 const struct pipe_draw_info *info,
146 const struct pipe_draw_start_count_bias *draw, unsigned index_offset)
147 {
148 struct pipe_resource *idx_buffer = NULL;
149 enum pc_di_index_size idx_type = INDEX_SIZE_IGN;
150 enum pc_di_src_sel src_sel;
151 uint32_t idx_size, idx_offset;
152
153 if (info->index_size) {
154 assert(!info->has_user_indices);
155
156 idx_buffer = info->index.resource;
157 idx_type = size2indextype(info->index_size);
158 idx_size = info->index_size * draw->count;
159 idx_offset = index_offset + draw->start * info->index_size;
160 src_sel = DI_SRC_SEL_DMA;
161 } else {
162 idx_buffer = NULL;
163 idx_type = INDEX_SIZE_IGN;
164 idx_size = 0;
165 idx_offset = 0;
166 src_sel = DI_SRC_SEL_AUTO_INDEX;
167 }
168
169 fd_draw(batch, ring, primtype, vismode, src_sel, draw->count,
170 info->instance_count - 1, idx_type, idx_size, idx_offset,
171 idx_buffer);
172 }
173
174 #endif /* FREEDRENO_DRAW_H_ */
175