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  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.                 uint8_t instances,
  50.                 enum pc_di_index_size idx_type,
  51.                 uint32_t idx_size, uint32_t idx_offset,
  52.                 struct fd_bo *idx_bo)
  53. {
  54.         /* for debug after a lock up, write a unique counter value
  55.          * to scratch7 for each draw, to make it easier to match up
  56.          * register dumps to cmdstream.  The combination of IB
  57.          * (scratch6) and DRAW is enough to "triangulate" the
  58.          * particular draw that caused lockup.
  59.          */
  60.         emit_marker(ring, 7);
  61.  
  62.         if (is_a3xx_p0(ctx->screen)) {
  63.                 /* dummy-draw workaround: */
  64.                 OUT_PKT3(ring, CP_DRAW_INDX, 3);
  65.                 OUT_RING(ring, 0x00000000);
  66.                 OUT_RING(ring, DRAW(1, DI_SRC_SEL_AUTO_INDEX,
  67.                                                         INDEX_SIZE_IGN, USE_VISIBILITY, 0));
  68.                 OUT_RING(ring, 0);             /* NumIndices */
  69.  
  70.                 /* ugg, hard-code register offset to avoid pulling in the
  71.                  * a3xx register headers into something #included from a2xx
  72.                  */
  73.                 OUT_PKT0(ring, 0x2206, 1);     /* A3XX_HLSQ_CONST_VSPRESV_RANGE_REG */
  74.                 OUT_RING(ring, 0);
  75.         }
  76.  
  77.         OUT_PKT3(ring, CP_DRAW_INDX, idx_bo ? 5 : 3);
  78.         OUT_RING(ring, 0x00000000);        /* viz query info. */
  79.         if (vismode == USE_VISIBILITY) {
  80.                 /* leave vis mode blank for now, it will be patched up when
  81.                  * we know if we are binning or not
  82.                  */
  83.                 OUT_RINGP(ring, DRAW(primtype, src_sel, idx_type, 0, instances),
  84.                                 &ctx->draw_patches);
  85.         } else {
  86.                 OUT_RING(ring, DRAW(primtype, src_sel, idx_type, vismode, instances));
  87.         }
  88.         OUT_RING(ring, count);             /* NumIndices */
  89.         if (idx_bo) {
  90.                 OUT_RELOC(ring, idx_bo, idx_offset, 0, 0);
  91.                 OUT_RING (ring, idx_size);
  92.         }
  93.  
  94.         emit_marker(ring, 7);
  95.  
  96.         fd_reset_wfi(ctx);
  97. }
  98.  
  99.  
  100. static inline enum pc_di_index_size
  101. size2indextype(unsigned index_size)
  102. {
  103.         switch (index_size) {
  104.         case 1: return INDEX_SIZE_8_BIT;
  105.         case 2: return INDEX_SIZE_16_BIT;
  106.         case 4: return INDEX_SIZE_32_BIT;
  107.         }
  108.         DBG("unsupported index size: %d", index_size);
  109.         assert(0);
  110.         return INDEX_SIZE_IGN;
  111. }
  112.  
  113. /* this is same for a2xx/a3xx, so split into helper: */
  114. static inline void
  115. fd_draw_emit(struct fd_context *ctx, struct fd_ringbuffer *ring,
  116.                 enum pc_di_primtype primtype,
  117.                 enum pc_di_vis_cull_mode vismode,
  118.                 const struct pipe_draw_info *info)
  119. {
  120.         struct pipe_index_buffer *idx = &ctx->indexbuf;
  121.         struct fd_bo *idx_bo = NULL;
  122.         enum pc_di_index_size idx_type = INDEX_SIZE_IGN;
  123.         enum pc_di_src_sel src_sel;
  124.         uint32_t idx_size, idx_offset;
  125.  
  126.         if (info->indexed) {
  127.                 assert(!idx->user_buffer);
  128.  
  129.                 idx_bo = fd_resource(idx->buffer)->bo;
  130.                 idx_type = size2indextype(idx->index_size);
  131.                 idx_size = idx->index_size * info->count;
  132.                 idx_offset = idx->offset + (info->start * idx->index_size);
  133.                 src_sel = DI_SRC_SEL_DMA;
  134.         } else {
  135.                 idx_bo = NULL;
  136.                 idx_type = INDEX_SIZE_IGN;
  137.                 idx_size = 0;
  138.                 idx_offset = 0;
  139.                 src_sel = DI_SRC_SEL_AUTO_INDEX;
  140.         }
  141.  
  142.         fd_draw(ctx, ring, primtype, vismode, src_sel,
  143.                         info->count, info->instance_count - 1,
  144.                         idx_type, idx_size, idx_offset, idx_bo);
  145. }
  146.  
  147. #endif /* FREEDRENO_DRAW_H_ */
  148.