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

   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
  34 void fd4_draw_init(struct pipe_context *pctx);
  35
  36 /* draw packet changed on a4xx, so cannot reuse one from a2xx/a3xx.. */
  37
  38 static inline uint32_t DRAW4(enum pc_di_primtype prim_type,
  39                 enum pc_di_src_sel source_select, enum a4xx_index_size index_size,
  40                 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
  48 static inline void
  49 fd4_draw(struct fd_batch *batch, struct fd_ringbuffer *ring,
  50                 enum pc_di_primtype primtype,
  51                 enum pc_di_vis_cull_mode vismode,
  52                 enum pc_di_src_sel src_sel, uint32_t count,
  53                 uint32_t instances, enum a4xx_index_size idx_type,
  54                 uint32_t idx_size, uint32_t idx_offset,
  55                 struct pipe_resource *idx_buffer)
  56 {
  57         /* for debug after a lock up, write a unique counter value
  58          * to scratch7 for each draw, to make it easier to match up
  59          * register dumps to cmdstream.  The combination of IB
  60          * (scratch6) and DRAW is enough to "triangulate" the
  61          * particular draw that caused lockup.
  62          */
  63         emit_marker(ring, 7);
  64
  65         OUT_PKT3(ring, CP_DRAW_INDX_OFFSET, idx_buffer ? 6 : 3);
  66         if (vismode == USE_VISIBILITY) {
  67                 /* leave vis mode blank for now, it will be patched up when
  68                  * we know if we are binning or not
  69                  */
  70                 OUT_RINGP(ring, DRAW4(primtype, src_sel, idx_type, 0),
  71                                 &batch->draw_patches);
  72         } else {
  73                 OUT_RING(ring, DRAW4(primtype, src_sel, idx_type, vismode));
  74         }
  75         OUT_RING(ring, instances);         /* NumInstances */
  76         OUT_RING(ring, count);             /* NumIndices */
  77         if (idx_buffer) {
  78                 OUT_RING(ring, 0x0);           /* XXX */
  79                 OUT_RELOC(ring, fd_resource(idx_buffer)->bo, idx_offset, 0, 0);
  80                 OUT_RING (ring, idx_size);
  81         }
  82
  83         emit_marker(ring, 7);
  84
  85         fd_reset_wfi(batch);
  86 }
  87
  88 static inline enum a4xx_index_size
  89 fd4_size2indextype(unsigned index_size)
  90 {
  91         switch (index_size) {
  92         case 1: return INDEX4_SIZE_8_BIT;
  93         case 2: return INDEX4_SIZE_16_BIT;
  94         case 4: return INDEX4_SIZE_32_BIT;
  95         }
  96         DBG("unsupported index size: %d", index_size);
  97         assert(0);
  98         return INDEX4_SIZE_32_BIT;
  99 }
 100
 101 static inline void
 102 fd4_draw_emit(struct fd_batch *batch, struct fd_ringbuffer *ring,
 103                 enum pc_di_primtype primtype,
 104                 enum pc_di_vis_cull_mode vismode,
 105                 const struct pipe_draw_info *info,
 106                 unsigned index_offset)
 107 {
 108         struct pipe_resource *idx_buffer = NULL;
 109         enum a4xx_index_size idx_type;
 110         enum pc_di_src_sel src_sel;
 111         uint32_t idx_size, idx_offset;
 112
 113         if (info->indirect) {
 114                 struct fd_resource *ind = fd_resource(info->indirect->buffer);
 115
 116                 emit_marker(ring, 7);
 117
 118                 if (info->index_size) {
 119                         struct pipe_resource *idx = info->index.resource;
 120
 121                         OUT_PKT3(ring, CP_DRAW_INDX_INDIRECT, 4);
 122                         OUT_RINGP(ring, DRAW4(primtype, DI_SRC_SEL_DMA,
 123                                         fd4_size2indextype(info->index_size), 0),
 124                                         &batch->draw_patches);
 125                         OUT_RELOC(ring, fd_resource(idx)->bo, index_offset, 0, 0);
 126                         OUT_RING(ring, A4XX_CP_DRAW_INDX_INDIRECT_2_INDX_SIZE(
 127                                                          idx->width0 - index_offset));
 128                         OUT_RELOC(ring, ind->bo, info->indirect->offset, 0, 0);
 129                 } else {
 130                         OUT_PKT3(ring, CP_DRAW_INDIRECT, 2);
 131                         OUT_RINGP(ring, DRAW4(primtype, DI_SRC_SEL_AUTO_INDEX, 0, 0),
 132                                         &batch->draw_patches);
 133                         OUT_RELOC(ring, ind->bo, info->indirect->offset, 0, 0);
 134                 }
 135
 136                 emit_marker(ring, 7);
 137                 fd_reset_wfi(batch);
 138
 139                 return;
 140         }
 141
 142         if (info->index_size) {
 143                 assert(!info->has_user_indices);
 144
 145                 idx_buffer = info->index.resource;
 146                 idx_type = fd4_size2indextype(info->index_size);
 147                 idx_size = info->index_size * info->count;
 148                 idx_offset = index_offset + info->start * info->index_size;
 149                 src_sel = DI_SRC_SEL_DMA;
 150         } else {
 151                 idx_buffer = NULL;
 152                 idx_type = INDEX4_SIZE_32_BIT;
 153                 idx_size = 0;
 154                 idx_offset = 0;
 155                 src_sel = DI_SRC_SEL_AUTO_INDEX;
 156         }
 157
 158         fd4_draw(batch, ring, primtype, vismode, src_sel,
 159                         info->count, info->instance_count,
 160                         idx_type, idx_size, idx_offset, idx_buffer);
 161 }
 162
 163 #endif /* FD4_DRAW_H_ */