1/*
2 * Copyright 2021 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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23#include <stdio.h>
24#include "agx_state.h"
25#include "asahi/lib/agx_pack.h"
26
27/* Computes the address for a push uniform, adding referenced BOs to the
28 * current batch as necessary. Note anything uploaded via the batch's pool does
29 * not require an update to the BO list, since the entire pool will be added
30 * once at submit time. */
31
32static uint64_t
33agx_const_buffer_ptr(struct agx_batch *batch,
34                     struct pipe_constant_buffer *cb)
35{
36   if (cb->buffer) {
37      struct agx_bo *bo = agx_resource(cb->buffer)->bo;
38      agx_batch_add_bo(batch, bo);
39
40      return bo->ptr.gpu + cb->buffer_offset;
41   } else {
42      return agx_pool_upload_aligned(&batch->pool,
43                                     ((uint8_t *) cb->user_buffer) + cb->buffer_offset,
44                                     cb->buffer_size - cb->buffer_offset, 64);
45   }
46}
47
48static uint64_t
49agx_push_location_direct(struct agx_context *ctx, struct agx_push push,
50                         enum pipe_shader_type stage)
51{
52   struct agx_batch *batch = ctx->batch;
53   struct agx_stage *st = &ctx->stage[stage];
54
55   switch (push.type) {
56   case AGX_PUSH_UBO_BASES: {
57      unsigned count = util_last_bit(st->cb_mask);
58      struct agx_ptr ptr = agx_pool_alloc_aligned(&batch->pool, count * sizeof(uint64_t), 8);
59      uint64_t *addresses = ptr.cpu;
60
61      for (unsigned i = 0; i < count; ++i) {
62         struct pipe_constant_buffer *cb = &st->cb[i];
63         addresses[i] = agx_const_buffer_ptr(batch, cb);
64      }
65
66      return ptr.gpu;
67   }
68
69   case AGX_PUSH_VBO_BASES: {
70      unsigned count = util_last_bit(ctx->vb_mask);
71      struct agx_ptr ptr = agx_pool_alloc_aligned(&batch->pool, count * sizeof(uint64_t), 8);
72      uint64_t *addresses = ptr.cpu;
73
74      u_foreach_bit(i, ctx->vb_mask) {
75         struct pipe_vertex_buffer vb = ctx->vertex_buffers[i];
76         assert(!vb.is_user_buffer);
77
78         struct agx_bo *bo = agx_resource(vb.buffer.resource)->bo;
79         agx_batch_add_bo(batch, bo);
80
81         addresses[i] = bo->ptr.gpu + vb.buffer_offset;
82      }
83
84      return ptr.gpu;
85   }
86
87   case AGX_PUSH_BLEND_CONST:
88   {
89      return agx_pool_upload_aligned(&batch->pool, &ctx->blend_color,
90            sizeof(ctx->blend_color), 8);
91   }
92
93   case AGX_PUSH_ARRAY_SIZE_MINUS_1: {
94      struct agx_stage *st = &ctx->stage[stage];
95      unsigned count = st->texture_count;
96      struct agx_ptr ptr = agx_pool_alloc_aligned(&batch->pool, count * sizeof(uint16_t), 8);
97      uint16_t *d1 = ptr.cpu;
98
99      for (unsigned i = 0; i < count; ++i) {
100         unsigned array_size = 1;
101
102         if (st->textures[i])
103            array_size = st->textures[i]->base.texture->array_size;
104
105         d1[i] = array_size - 1;
106      }
107
108      return ptr.gpu;
109   }
110
111   default:
112      unreachable("todo: push more");
113   }
114}
115
116uint64_t
117agx_push_location(struct agx_context *ctx, struct agx_push push,
118                  enum pipe_shader_type stage)
119{
120   uint64_t direct = agx_push_location_direct(ctx, push, stage);
121   struct agx_pool *pool = &ctx->batch->pool;
122
123   if (push.indirect)
124      return agx_pool_upload(pool, &direct, sizeof(direct));
125   else
126      return direct;
127}
128