src/gallium/drivers/iris/iris_screen.h

   1 /*
   2  * Copyright © 2017 Intel Corporation
   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 #ifndef IRIS_SCREEN_H
  24 #define IRIS_SCREEN_H
  25
  26 #include "pipe/p_screen.h"
  27 #include "state_tracker/drm_driver.h"
  28 #include "util/slab.h"
  29 #include "util/u_screen.h"
  30 #include "intel/dev/gen_device_info.h"
  31 #include "intel/isl/isl.h"
  32 #include "iris_bufmgr.h"
  33
  34 struct iris_bo;
  35
  36 #define IRIS_MAX_TEXTURE_SAMPLERS 32
  37 #define IRIS_MAX_SOL_BUFFERS 4
  38
  39 struct iris_screen {
  40    struct pipe_screen base;
  41
  42    /** Global slab allocator for iris_transfer_map objects */
  43    struct slab_parent_pool transfer_pool;
  44
  45    /** drm device file descriptor */
  46    int fd;
  47
  48    /** PCI ID for our GPU device */
  49    int pci_id;
  50
  51    /** Global program_string_id counter (see get_program_string_id()) */
  52    unsigned program_id;
  53
  54    /** Precompile shaders at link time?  (Can be disabled for debugging.) */
  55    bool precompile;
  56
  57    unsigned subslice_total;
  58
  59    struct gen_device_info devinfo;
  60    struct isl_device isl_dev;
  61    struct iris_bufmgr *bufmgr;
  62    struct brw_compiler *compiler;
  63
  64    /**
  65     * A buffer containing nothing useful, for hardware workarounds that
  66     * require scratch writes or reads from some unimportant memory.
  67     */
  68    struct iris_bo *workaround_bo;
  69 };
  70
  71 struct pipe_screen *iris_screen_create(int fd);
  72
  73 boolean
  74 iris_is_format_supported(struct pipe_screen *pscreen,
  75                          enum pipe_format format,
  76                          enum pipe_texture_target target,
  77                          unsigned sample_count,
  78                          unsigned storage_sample_count,
  79                          unsigned usage);
  80
  81 #endif