src/gallium/drivers/iris/iris_batch.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  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #ifndef IRIS_BATCH_DOT_H
  25 #define IRIS_BATCH_DOT_H
  26
  27 #include <stdint.h>
  28 #include <stdbool.h>
  29
  30 /* The kernel assumes batchbuffers are smaller than 256kB. */
  31 #define MAX_BATCH_SIZE (256 * 1024)
  32
  33 /* 3DSTATE_BINDING_TABLE_POINTERS has a U16 offset from Surface State Base
  34  * Address, which means that we can't put binding tables beyond 64kB.  This
  35  * effectively limits the maximum statebuffer size to 64kB.
  36  */
  37 #define MAX_STATE_SIZE (64 * 1024)
  38
  39 struct iris_address {
  40    struct iris_bo *bo;
  41    uint64_t offset;
  42    bool write;
  43 };
  44
  45 struct iris_batch_buffer {
  46    struct iris_bo *bo;
  47    void *map;
  48    void *map_next;
  49
  50    struct iris_bo *partial_bo;
  51    unsigned partial_bytes;
  52 };
  53
  54 struct iris_batch {
  55    struct iris_screen *screen;
  56    struct pipe_debug_callback *dbg;
  57
  58    /** Current batchbuffer being queued up. */
  59    struct iris_batch_buffer cmdbuf;
  60
  61    /** Last BO submitted to the hardware.  Used for glFinish(). */
  62    struct iris_bo *last_cmd_bo;
  63
  64    uint32_t hw_ctx_id;
  65
  66    /** Which ring this batch targets - a I915_EXEC_RING_MASK value */
  67    uint8_t ring;
  68
  69    bool no_wrap;
  70
  71    /** The validation list */
  72    struct drm_i915_gem_exec_object2 *validation_list;
  73    struct iris_bo **exec_bos;
  74    int exec_count;
  75    int exec_array_size;
  76
  77    /** The amount of aperture space (in bytes) used by all exec_bos */
  78    int aperture_space;
  79
  80    /** Map from batch offset to iris_alloc_state data (with DEBUG_BATCH) */
  81    struct hash_table *state_sizes;
  82
  83    void (*emit_state_base_address)(struct iris_batch *batch);
  84 };
  85
  86 void iris_init_batch(struct iris_batch *batch,
  87                      struct iris_screen *screen,
  88                      struct pipe_debug_callback *dbg,
  89                      uint8_t ring);
  90 void iris_batch_free(struct iris_batch *batch);
  91 void iris_require_command_space(struct iris_batch *batch, unsigned size);
  92 void iris_batch_emit(struct iris_batch *batch, const void *data, unsigned size);
  93
  94 int _iris_batch_flush_fence(struct iris_batch *batch,
  95                             int in_fence_fd, int *out_fence_fd,
  96                             const char *file, int line);
  97
  98
  99 #define iris_batch_flush_fence(batch, in_fence_fd, out_fence_fd) \
 100    _iris_batch_flush_fence((batch), (in_fence_fd), (out_fence_fd), \
 101                            __FILE__, __LINE__)
 102
 103 #define iris_batch_flush(batch) iris_batch_flush_fence((batch), -1, NULL)
 104
 105 bool iris_batch_references(struct iris_batch *batch, struct iris_bo *bo);
 106
 107 #define RELOC_WRITE EXEC_OBJECT_WRITE
 108
 109 void iris_use_pinned_bo(struct iris_batch *batch, struct iris_bo *bo,
 110                         bool writable);
 111
 112 #endif