1/*
2 * Copyright (C) 2014 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 FD4_DRAW_H_
28#define FD4_DRAW_H_
29
30#include "pipe/p_context.h"
31
32#include "freedreno_draw.h"
33
34void fd4_draw_init(struct pipe_context *pctx);
35
36/* draw packet changed on a4xx, so cannot reuse one from a2xx/a3xx.. */
37
38static inline uint32_t
39DRAW4(enum pc_di_primtype prim_type, enum pc_di_src_sel source_select,
40      enum a4xx_index_size index_size, enum pc_di_vis_cull_mode vis_cull_mode)
41{
42   return CP_DRAW_INDX_OFFSET_0_PRIM_TYPE(prim_type) |
43          CP_DRAW_INDX_OFFSET_0_SOURCE_SELECT(source_select) |
44          CP_DRAW_INDX_OFFSET_0_INDEX_SIZE(index_size) |
45          CP_DRAW_INDX_OFFSET_0_VIS_CULL(vis_cull_mode);
46}
47
48static inline void
49fd4_draw(struct fd_batch *batch, struct fd_ringbuffer *ring,
50         enum pc_di_primtype primtype, enum pc_di_vis_cull_mode vismode,
51         enum pc_di_src_sel src_sel, uint32_t count, uint32_t instances,
52         enum a4xx_index_size idx_type, uint32_t max_indices,
53         uint32_t idx_offset, struct pipe_resource *idx_buffer)
54{
55   /* for debug after a lock up, write a unique counter value
56    * to scratch7 for each draw, to make it easier to match up
57    * register dumps to cmdstream.  The combination of IB
58    * (scratch6) and DRAW is enough to "triangulate" the
59    * particular draw that caused lockup.
60    */
61   emit_marker(ring, 7);
62
63   OUT_PKT3(ring, CP_DRAW_INDX_OFFSET, idx_buffer ? 6 : 3);
64   if (vismode == USE_VISIBILITY) {
65      /* leave vis mode blank for now, it will be patched up when
66       * we know if we are binning or not
67       */
68      OUT_RINGP(ring, DRAW4(primtype, src_sel, idx_type, 0),
69                &batch->draw_patches);
70   } else {
71      OUT_RING(ring, DRAW4(primtype, src_sel, idx_type, vismode));
72   }
73   OUT_RING(ring, instances); /* NumInstances */
74   OUT_RING(ring, count);     /* NumIndices */
75   if (idx_buffer) {
76      OUT_RING(ring, 0x0); /* XXX */
77      OUT_RELOC(ring, fd_resource(idx_buffer)->bo, idx_offset, 0, 0);
78      OUT_RING(ring, max_indices);
79   }
80
81   emit_marker(ring, 7);
82
83   fd_reset_wfi(batch);
84}
85
86static inline void
87fd4_draw_emit(struct fd_batch *batch, struct fd_ringbuffer *ring,
88              enum pc_di_primtype primtype, enum pc_di_vis_cull_mode vismode,
89              const struct pipe_draw_info *info,
90              const struct pipe_draw_indirect_info *indirect,
91              const struct pipe_draw_start_count_bias *draw, unsigned index_offset)
92{
93   struct pipe_resource *idx_buffer = NULL;
94   enum a4xx_index_size idx_type;
95   enum pc_di_src_sel src_sel;
96   uint32_t idx_size, idx_offset;
97
98   if (indirect && indirect->buffer) {
99      struct fd_resource *ind = fd_resource(indirect->buffer);
100
101      emit_marker(ring, 7);
102
103      if (info->index_size) {
104         struct pipe_resource *idx = info->index.resource;
105
106         OUT_PKT3(ring, CP_DRAW_INDX_INDIRECT, 4);
107         OUT_RINGP(ring,
108                   DRAW4(primtype, DI_SRC_SEL_DMA,
109                         fd4_size2indextype(info->index_size), 0),
110                   &batch->draw_patches);
111         OUT_RELOC(ring, fd_resource(idx)->bo, index_offset, 0, 0);
112         OUT_RING(ring, A4XX_CP_DRAW_INDX_INDIRECT_2_INDX_SIZE(idx->width0 -
113                                                               index_offset));
114         OUT_RELOC(ring, ind->bo, indirect->offset, 0, 0);
115      } else {
116         OUT_PKT3(ring, CP_DRAW_INDIRECT, 2);
117         OUT_RINGP(ring, DRAW4(primtype, DI_SRC_SEL_AUTO_INDEX, 0, 0),
118                   &batch->draw_patches);
119         OUT_RELOC(ring, ind->bo, indirect->offset, 0, 0);
120      }
121
122      emit_marker(ring, 7);
123      fd_reset_wfi(batch);
124
125      return;
126   }
127
128   if (info->index_size) {
129      assert(!info->has_user_indices);
130
131      idx_buffer = info->index.resource;
132      idx_type = fd4_size2indextype(info->index_size);
133      idx_size = info->index_size * draw->count;
134      idx_offset = index_offset + draw->start * info->index_size;
135      src_sel = DI_SRC_SEL_DMA;
136   } else {
137      idx_buffer = NULL;
138      idx_type = INDEX4_SIZE_32_BIT;
139      idx_size = 0;
140      idx_offset = 0;
141      src_sel = DI_SRC_SEL_AUTO_INDEX;
142   }
143
144   fd4_draw(batch, ring, primtype, vismode, src_sel, draw->count,
145            info->instance_count, idx_type, idx_size, idx_offset, idx_buffer);
146}
147
148#endif /* FD4_DRAW_H_ */
149