src/gallium/drivers/ilo/core/ilo_state_compute.h

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2015 LunarG, Inc.
   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 shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Chia-I Wu <olv@lunarg.com>
  26  */
  27
  28 #ifndef ILO_STATE_COMPUTE_H
  29 #define ILO_STATE_COMPUTE_H
  30
  31 #include "genhw/genhw.h"
  32
  33 #include "ilo_core.h"
  34 #include "ilo_dev.h"
  35
  36 /*
  37  * From the Haswell PRM, volume 7, page 836:
  38  *
  39  *     "The first 64 URB entries are reserved for the interface
  40  *      description..."
  41  */
  42 #define ILO_STATE_COMPUTE_MAX_INTERFACE_COUNT 64
  43
  44 struct ilo_state_compute_interface_info {
  45    /* usually 0 unless there are multiple interfaces */
  46    uint32_t kernel_offset;
  47
  48    uint8_t sampler_count;
  49    uint8_t surface_count;
  50
  51    uint16_t thread_group_size;
  52    uint32_t slm_size;
  53
  54    uint16_t curbe_read_offset;
  55    uint16_t curbe_read_length;
  56    uint16_t cross_thread_curbe_read_length;
  57 };
  58
  59 struct ilo_state_compute_info {
  60    void *data;
  61    size_t data_size;
  62
  63    const struct ilo_state_compute_interface_info *interfaces;
  64    uint8_t interface_count;
  65
  66    uint32_t per_thread_scratch_size;
  67
  68    uint32_t cv_urb_alloc_size;
  69    uint32_t curbe_alloc_size;
  70 };
  71
  72 struct ilo_state_compute {
  73    uint32_t vfe[3];
  74
  75    uint32_t (*idrt)[6];
  76    uint8_t idrt_count;
  77
  78    uint32_t scratch_size;
  79 };
  80
  81 static inline size_t
  82 ilo_state_compute_data_size(const struct ilo_dev *dev,
  83                             uint8_t interface_count)
  84 {
  85    const struct ilo_state_compute *compute = NULL;
  86    return sizeof(compute->idrt[0]) * interface_count;
  87 }
  88
  89 bool
  90 ilo_state_compute_init(struct ilo_state_compute *compute,
  91                        const struct ilo_dev *dev,
  92                        const struct ilo_state_compute_info *info);
  93
  94 static inline uint32_t
  95 ilo_state_compute_get_scratch_size(const struct ilo_state_compute *compute)
  96 {
  97    return compute->scratch_size;
  98 }
  99
 100 #endif /* ILO_STATE_COMPUTE_H */