src/gallium/drivers/freedreno/freedreno_draw.h

   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
  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                 OUT_PKT3(ring, CP_DRAW_INDX, idx_buffer ? 4 : 2);
  77                 OUT_RING(ring, 0x00000000);
  78                 OUT_RING(ring, DRAW_A20X(primtype, src_sel, idx_type, vismode, count));
  79         } else {
  80                 OUT_PKT3(ring, CP_DRAW_INDX, idx_buffer ? 5 : 3);
  81                 OUT_RING(ring, 0x00000000);        /* viz query info. */
  82                 if (vismode == USE_VISIBILITY) {
  83                         /* leave vis mode blank for now, it will be patched up when
  84                          * we know if we are binning or not
  85                          */
  86                         OUT_RINGP(ring, DRAW(primtype, src_sel, idx_type, 0, instances),
  87                                         &batch->draw_patches);
  88                 } else {
  89                         OUT_RING(ring, DRAW(primtype, src_sel, idx_type, vismode, instances));
  90                 }
  91                 OUT_RING(ring, count);             /* NumIndices */
  92         }
  93
  94         if (idx_buffer) {
  95                 OUT_RELOC(ring, fd_resource(idx_buffer)->bo, idx_offset, 0, 0);
  96                 OUT_RING (ring, idx_size);
  97         }
  98
  99         emit_marker(ring, 7);
 100
 101         fd_reset_wfi(batch);
 102 }
 103
 104
 105 static inline enum pc_di_index_size
 106 size2indextype(unsigned index_size)
 107 {
 108         switch (index_size) {
 109         case 1: return INDEX_SIZE_8_BIT;
 110         case 2: return INDEX_SIZE_16_BIT;
 111         case 4: return INDEX_SIZE_32_BIT;
 112         }
 113         DBG("unsupported index size: %d", index_size);
 114         assert(0);
 115         return INDEX_SIZE_IGN;
 116 }
 117
 118 /* this is same for a2xx/a3xx, so split into helper: */
 119 static inline void
 120 fd_draw_emit(struct fd_batch *batch, struct fd_ringbuffer *ring,
 121                 enum pc_di_primtype primtype,
 122                 enum pc_di_vis_cull_mode vismode,
 123                 const struct pipe_draw_info *info,
 124                 unsigned index_offset)
 125 {
 126         struct pipe_resource *idx_buffer = NULL;
 127         enum pc_di_index_size idx_type = INDEX_SIZE_IGN;
 128         enum pc_di_src_sel src_sel;
 129         uint32_t idx_size, idx_offset;
 130
 131         if (info->index_size) {
 132                 assert(!info->has_user_indices);
 133
 134                 idx_buffer = info->index.resource;
 135                 idx_type = size2indextype(info->index_size);
 136                 idx_size = info->index_size * info->count;
 137                 idx_offset = index_offset + info->start * info->index_size;
 138                 src_sel = DI_SRC_SEL_DMA;
 139         } else {
 140                 idx_buffer = NULL;
 141                 idx_type = INDEX_SIZE_IGN;
 142                 idx_size = 0;
 143                 idx_offset = 0;
 144                 src_sel = DI_SRC_SEL_AUTO_INDEX;
 145         }
 146
 147         fd_draw(batch, ring, primtype, vismode, src_sel,
 148                         info->count, info->instance_count - 1,
 149                         idx_type, idx_size, idx_offset, idx_buffer);
 150 }
 151
 152 #endif /* FREEDRENO_DRAW_H_ */