src/gallium/drivers/freedreno/freedreno_draw.h

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2012 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 FREEDRENO_DRAW_H_
  30 #define FREEDRENO_DRAW_H_
  31
  32 #include "pipe/p_state.h"
  33 #include "pipe/p_context.h"
  34
  35 #include "freedreno_context.h"
  36 #include "freedreno_resource.h"
  37 #include "freedreno_screen.h"
  38 #include "freedreno_util.h"
  39
  40 struct fd_ringbuffer;
  41
  42 void fd_draw_init(struct pipe_context *pctx);
  43
  44 static inline void
  45 fd_draw(struct fd_context *ctx, struct fd_ringbuffer *ring,
  46                 enum pc_di_primtype primtype,
  47                 enum pc_di_vis_cull_mode vismode,
  48                 enum pc_di_src_sel src_sel, uint32_t count,
  49                 enum pc_di_index_size idx_type,
  50                 uint32_t idx_size, uint32_t idx_offset,
  51                 struct fd_bo *idx_bo)
  52 {
  53         /* for debug after a lock up, write a unique counter value
  54          * to scratch7 for each draw, to make it easier to match up
  55          * register dumps to cmdstream.  The combination of IB
  56          * (scratch6) and DRAW is enough to "triangulate" the
  57          * particular draw that caused lockup.
  58          */
  59         emit_marker(ring, 7);
  60
  61         if (is_a3xx_p0(ctx->screen)) {
  62                 /* dummy-draw workaround: */
  63                 OUT_PKT3(ring, CP_DRAW_INDX, 3);
  64                 OUT_RING(ring, 0x00000000);
  65                 OUT_RING(ring, DRAW(1, DI_SRC_SEL_AUTO_INDEX,
  66                                 INDEX_SIZE_IGN, USE_VISIBILITY));
  67                 OUT_RING(ring, 0);             /* NumIndices */
  68
  69                 /* ugg, hard-code register offset to avoid pulling in the
  70                  * a3xx register headers into something #included from a2xx
  71                  */
  72                 OUT_PKT0(ring, 0x2206, 1);     /* A3XX_HLSQ_CONST_VSPRESV_RANGE_REG */
  73                 OUT_RING(ring, 0);
  74         }
  75
  76         OUT_PKT3(ring, CP_DRAW_INDX, idx_bo ? 5 : 3);
  77         OUT_RING(ring, 0x00000000);        /* viz query info. */
  78         if (vismode == USE_VISIBILITY) {
  79                 /* leave vis mode blank for now, it will be patched up when
  80                  * we know if we are binning or not
  81                  */
  82                 OUT_RINGP(ring, DRAW(primtype, src_sel, idx_type, 0),
  83                                 &ctx->draw_patches);
  84         } else {
  85                 OUT_RING(ring, DRAW(primtype, src_sel, idx_type, vismode));
  86         }
  87         OUT_RING(ring, count);             /* NumIndices */
  88         if (idx_bo) {
  89                 OUT_RELOC(ring, idx_bo, idx_offset, 0, 0);
  90                 OUT_RING (ring, idx_size);
  91         }
  92
  93         emit_marker(ring, 7);
  94
  95         fd_reset_wfi(ctx);
  96 }
  97
  98
  99 static inline enum pc_di_index_size
 100 size2indextype(unsigned index_size)
 101 {
 102         switch (index_size) {
 103         case 1: return INDEX_SIZE_8_BIT;
 104         case 2: return INDEX_SIZE_16_BIT;
 105         case 4: return INDEX_SIZE_32_BIT;
 106         }
 107         DBG("unsupported index size: %d", index_size);
 108         assert(0);
 109         return INDEX_SIZE_IGN;
 110 }
 111
 112 /* this is same for a2xx/a3xx, so split into helper: */
 113 static inline void
 114 fd_draw_emit(struct fd_context *ctx, struct fd_ringbuffer *ring,
 115                 enum pc_di_vis_cull_mode vismode,
 116                 const struct pipe_draw_info *info)
 117 {
 118         struct pipe_index_buffer *idx = &ctx->indexbuf;
 119         struct fd_bo *idx_bo = NULL;
 120         enum pc_di_index_size idx_type = INDEX_SIZE_IGN;
 121         enum pc_di_src_sel src_sel;
 122         uint32_t idx_size, idx_offset;
 123
 124         if (info->indexed) {
 125                 assert(!idx->user_buffer);
 126
 127                 idx_bo = fd_resource(idx->buffer)->bo;
 128                 idx_type = size2indextype(idx->index_size);
 129                 idx_size = idx->index_size * info->count;
 130                 idx_offset = idx->offset + (info->start * idx->index_size);
 131                 src_sel = DI_SRC_SEL_DMA;
 132         } else {
 133                 idx_bo = NULL;
 134                 idx_type = INDEX_SIZE_IGN;
 135                 idx_size = 0;
 136                 idx_offset = 0;
 137                 src_sel = DI_SRC_SEL_AUTO_INDEX;
 138         }
 139
 140         fd_draw(ctx, ring, ctx->primtypes[info->mode], vismode, src_sel,
 141                         info->count, idx_type, idx_size, idx_offset, idx_bo);
 142 }
 143
 144 #endif /* FREEDRENO_DRAW_H_ */