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  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.                 uint32_t instances, 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, instances);         /* NumInstances */
  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, info->instance_count,
  131.                         idx_type, idx_size, idx_offset, idx_bo);
  132. }
  133.  
  134. #endif /* FD4_DRAW_H_ */
  135.