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      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 (at) 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 */
    101