src/gallium/drivers/freedreno/a4xx/fd4_draw.h

   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
  36 void fd4_draw_init(struct pipe_context *pctx);
  37
  38 /* draw packet changed on a4xx, so cannot reuse one from a2xx/a3xx.. */
  39
  40 static 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
  50 static inline void
  51 fd4_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
  90 static inline enum a4xx_index_size
  91 fd4_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
 103 static inline void
 104 fd4_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                 unsigned index_offset)
 109 {
 110         struct pipe_resource *idx_buffer = NULL;
 111         enum a4xx_index_size idx_type;
 112         enum pc_di_src_sel src_sel;
 113         uint32_t idx_size, idx_offset;
 114
 115         if (info->indirect) {
 116                 struct fd_resource *ind = fd_resource(info->indirect->buffer);
 117
 118                 emit_marker(ring, 7);
 119
 120                 if (info->index_size) {
 121                         struct pipe_resource *idx = info->index.resource;
 122
 123                         OUT_PKT3(ring, CP_DRAW_INDX_INDIRECT, 4);
 124                         OUT_RINGP(ring, DRAW4(primtype, DI_SRC_SEL_DMA,
 125                                         fd4_size2indextype(info->index_size), 0),
 126                                         &batch->draw_patches);
 127                         OUT_RELOC(ring, fd_resource(idx)->bo, index_offset, 0, 0);
 128                         OUT_RING(ring, A4XX_CP_DRAW_INDX_INDIRECT_2_INDX_SIZE(
 129                                                          idx->width0 - index_offset));
 130                         OUT_RELOC(ring, ind->bo, info->indirect->offset, 0, 0);
 131                 } else {
 132                         OUT_PKT3(ring, CP_DRAW_INDIRECT, 2);
 133                         OUT_RINGP(ring, DRAW4(primtype, DI_SRC_SEL_AUTO_INDEX, 0, 0),
 134                                         &batch->draw_patches);
 135                         OUT_RELOC(ring, ind->bo, info->indirect->offset, 0, 0);
 136                 }
 137
 138                 emit_marker(ring, 7);
 139                 fd_reset_wfi(batch);
 140
 141                 return;
 142         }
 143
 144         if (info->index_size) {
 145                 assert(!info->has_user_indices);
 146
 147                 idx_buffer = info->index.resource;
 148                 idx_type = fd4_size2indextype(info->index_size);
 149                 idx_size = info->index_size * info->count;
 150                 idx_offset = index_offset + info->start * info->index_size;
 151                 src_sel = DI_SRC_SEL_DMA;
 152         } else {
 153                 idx_buffer = NULL;
 154                 idx_type = INDEX4_SIZE_32_BIT;
 155                 idx_size = 0;
 156                 idx_offset = 0;
 157                 src_sel = DI_SRC_SEL_AUTO_INDEX;
 158         }
 159
 160         fd4_draw(batch, ring, primtype, vismode, src_sel,
 161                         info->count, info->instance_count,
 162                         idx_type, idx_size, idx_offset, idx_buffer);
 163 }
 164
 165 #endif /* FD4_DRAW_H_ */