src/gallium/drivers/freedreno/freedreno_resource.h

   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_RESOURCE_H_
  30 #define FREEDRENO_RESOURCE_H_
  31
  32 #include "util/list.h"
  33 #include "util/u_range.h"
  34 #include "util/u_transfer.h"
  35
  36 #include "freedreno_batch.h"
  37 #include "freedreno_util.h"
  38
  39 /* Texture Layout on a3xx:
  40  *
  41  * Each mipmap-level contains all of it's layers (ie. all cubmap
  42  * faces, all 1d/2d array elements, etc).  The texture sampler is
  43  * programmed with the start address of each mipmap level, and hw
  44  * derives the layer offset within the level.
  45  *
  46  * Texture Layout on a4xx:
  47  *
  48  * For cubemap and 2d array, each layer contains all of it's mipmap
  49  * levels (layer_first layout).
  50  *
  51  * 3d textures are layed out as on a3xx, but unknown about 3d-array
  52  * textures.
  53  *
  54  * In either case, the slice represents the per-miplevel information,
  55  * but in layer_first layout it only includes the first layer, and
  56  * an additional offset of (rsc->layer_size * layer) must be added.
  57  */
  58 struct fd_resource_slice {
  59         uint32_t offset;         /* offset of first layer in slice */
  60         uint32_t pitch;
  61         uint32_t size0;          /* size of first layer in slice */
  62 };
  63
  64 struct set;
  65
  66 struct fd_resource {
  67         struct u_resource base;
  68         struct fd_bo *bo;
  69         uint32_t cpp;
  70         enum pipe_format internal_format;
  71         bool layer_first;        /* see above description */
  72         uint32_t layer_size;
  73         struct fd_resource_slice slices[MAX_MIP_LEVELS];
  74         uint32_t timestamp;
  75         /* buffer range that has been initialized */
  76         struct util_range valid_buffer_range;
  77
  78         /* reference to the resource holding stencil data for a z32_s8 texture */
  79         /* TODO rename to secondary or auxiliary? */
  80         struct fd_resource *stencil;
  81
  82         /* bitmask of in-flight batches which reference this resource.  Note
  83          * that the batch doesn't hold reference to resources (but instead
  84          * the fd_ringbuffer holds refs to the underlying fd_bo), but in case
  85          * the resource is destroyed we need to clean up the batch's weak
  86          * references to us.
  87          */
  88         uint32_t batch_mask;
  89
  90         /* reference to batch that writes this resource: */
  91         struct fd_batch *write_batch;
  92
  93         /* Set of batches whose batch-cache key references this resource.
  94          * We need to track this to know which batch-cache entries to
  95          * invalidate if, for example, the resource is invalidated or
  96          * shadowed.
  97          */
  98         uint32_t bc_batch_mask;
  99 };
 100
 101 static inline struct fd_resource *
 102 fd_resource(struct pipe_resource *ptex)
 103 {
 104         return (struct fd_resource *)ptex;
 105 }
 106
 107 static inline bool
 108 pending(struct fd_resource *rsc, bool write)
 109 {
 110         /* if we have a pending GPU write, we are busy in any case: */
 111         if (rsc->write_batch)
 112                 return true;
 113
 114         /* if CPU wants to write, but we are pending a GPU read, we are busy: */
 115         if (write && rsc->batch_mask)
 116                 return true;
 117
 118         if (rsc->stencil && pending(rsc->stencil, write))
 119                 return true;
 120
 121         return false;
 122 }
 123
 124 struct fd_transfer {
 125         struct pipe_transfer base;
 126         void *staging;
 127 };
 128
 129 static inline struct fd_transfer *
 130 fd_transfer(struct pipe_transfer *ptrans)
 131 {
 132         return (struct fd_transfer *)ptrans;
 133 }
 134
 135 static inline struct fd_resource_slice *
 136 fd_resource_slice(struct fd_resource *rsc, unsigned level)
 137 {
 138         assert(level <= rsc->base.b.last_level);
 139         return &rsc->slices[level];
 140 }
 141
 142 /* get offset for specified mipmap level and texture/array layer */
 143 static inline uint32_t
 144 fd_resource_offset(struct fd_resource *rsc, unsigned level, unsigned layer)
 145 {
 146         struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
 147         unsigned offset;
 148         if (rsc->layer_first) {
 149                 offset = slice->offset + (rsc->layer_size * layer);
 150         } else {
 151                 offset = slice->offset + (slice->size0 * layer);
 152         }
 153         debug_assert(offset < fd_bo_size(rsc->bo));
 154         return offset;
 155 }
 156
 157 void fd_resource_screen_init(struct pipe_screen *pscreen);
 158 void fd_resource_context_init(struct pipe_context *pctx);
 159
 160 void fd_resource_resize(struct pipe_resource *prsc, uint32_t sz);
 161
 162 bool fd_render_condition_check(struct pipe_context *pctx);
 163
 164 #endif /* FREEDRENO_RESOURCE_H_ */