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 (prim_type         << 0) |
  45                         (source_select     << 6) |
  46                         (index_size        << 10);
  47 }
  48
  49 static inline void
  50 fd4_draw(struct fd_context *ctx, struct fd_ringbuffer *ring,
  51                 enum pc_di_primtype primtype,
  52                 enum pc_di_vis_cull_mode vismode,
  53                 enum pc_di_src_sel src_sel, uint32_t count,
  54                 enum a4xx_index_size idx_type,
  55                 uint32_t idx_size, uint32_t idx_offset,
  56                 struct fd_bo *idx_bo)
  57 {
  58         /* for debug after a lock up, write a unique counter value
  59          * to scratch7 for each draw, to make it easier to match up
  60          * register dumps to cmdstream.  The combination of IB
  61          * (scratch6) and DRAW is enough to "triangulate" the
  62          * particular draw that caused lockup.
  63          */
  64         emit_marker(ring, 7);
  65
  66         OUT_PKT3(ring, CP_DRAW_INDX_OFFSET, idx_bo ? 6 : 3);
  67         if (vismode == USE_VISIBILITY) {
  68                 /* leave vis mode blank for now, it will be patched up when
  69                  * we know if we are binning or not
  70                  */
  71                 OUT_RINGP(ring, DRAW4(primtype, src_sel, idx_type, 0),
  72                                 &ctx->draw_patches);
  73         } else {
  74                 OUT_RING(ring, DRAW4(primtype, src_sel, idx_type, vismode));
  75         }
  76         OUT_RING(ring, 0x1);               /* XXX */
  77         OUT_RING(ring, count);             /* NumIndices */
  78         if (idx_bo) {
  79                 OUT_RING(ring, 0x0);           /* XXX */
  80                 OUT_RELOC(ring, idx_bo, idx_offset, 0, 0);
  81                 OUT_RING (ring, idx_size);
  82         }
  83
  84         emit_marker(ring, 7);
  85
  86         fd_reset_wfi(ctx);
  87 }
  88
  89
  90 static inline enum pc_di_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 static inline void
 103 fd4_draw_emit(struct fd_context *ctx, struct fd_ringbuffer *ring,
 104                 enum pc_di_vis_cull_mode vismode,
 105                 const struct pipe_draw_info *info)
 106 {
 107         struct pipe_index_buffer *idx = &ctx->indexbuf;
 108         struct fd_bo *idx_bo = 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->indexed) {
 114                 assert(!idx->user_buffer);
 115
 116                 idx_bo = fd_resource(idx->buffer)->bo;
 117                 idx_type = fd4_size2indextype(idx->index_size);
 118                 idx_size = idx->index_size * info->count;
 119                 idx_offset = idx->offset + (info->start * idx->index_size);
 120                 src_sel = DI_SRC_SEL_DMA;
 121         } else {
 122                 idx_bo = NULL;
 123                 idx_type = INDEX4_SIZE_32_BIT;
 124                 idx_size = 0;
 125                 idx_offset = 0;
 126                 src_sel = DI_SRC_SEL_AUTO_INDEX;
 127         }
 128
 129         fd4_draw(ctx, ring, ctx->primtypes[info->mode], vismode, src_sel,
 130                         info->count, idx_type, idx_size, idx_offset, idx_bo);
 131 }
 132
 133 #endif /* FD4_DRAW_H_ */