src/gallium/drivers/panfrost/pan_fragment.c

   1 /*
   2  * Copyright 2018-2019 Alyssa Rosenzweig
   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  */
  24
  25 #include "pan_context.h"
  26 #include "pan_util.h"
  27 #include "pan_format.h"
  28
  29 #include "util/u_format.h"
  30
  31 /* Generate a fragment job. This should be called once per frame. (According to
  32  * presentations, this is supposed to correspond to eglSwapBuffers) */
  33
  34 mali_ptr
  35 panfrost_fragment_job(struct panfrost_context *ctx)
  36 {
  37         /* TODO: Check viewport or something */
  38         bool flip_y = panfrost_is_scanout(ctx);
  39
  40         mali_ptr framebuffer = ctx->require_sfbd ?
  41                 panfrost_sfbd_fragment(ctx, flip_y) :
  42                 panfrost_mfbd_fragment(ctx, flip_y);
  43
  44         struct mali_job_descriptor_header header = {
  45                 .job_type = JOB_TYPE_FRAGMENT,
  46                 .job_index = 1,
  47 #ifdef __LP64__
  48                 .job_descriptor_size = 1
  49 #endif
  50         };
  51
  52         struct mali_payload_fragment payload = {
  53                 .min_tile_coord = MALI_COORDINATE_TO_TILE_MIN(0, 0),
  54                 .max_tile_coord = MALI_COORDINATE_TO_TILE_MAX(ctx->pipe_framebuffer.width, ctx->pipe_framebuffer.height),
  55                 .framebuffer = framebuffer,
  56         };
  57
  58         /* Normally, there should be no padding. However, fragment jobs are
  59          * shared with 64-bit Bifrost systems, and accordingly there is 4-bytes
  60          * of zero padding in between. */
  61
  62         struct panfrost_transfer transfer = panfrost_allocate_transient(ctx, sizeof(header) + sizeof(payload));
  63         memcpy(transfer.cpu, &header, sizeof(header));
  64         memcpy(transfer.cpu + sizeof(header), &payload, sizeof(payload));
  65         return transfer.gpu;
  66 }