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 #include "common/gen_decoder.h"
  30
  31 /* The kernel assumes batchbuffers are smaller than 256kB. */
  32 #define MAX_BATCH_SIZE (256 * 1024)
  33
  34 struct iris_address {
  35    struct iris_bo *bo;
  36    uint64_t offset;
  37    bool write;
  38 };
  39
  40 struct iris_batch_buffer {
  41    struct iris_bo *bo;
  42    void *map;
  43    void *map_next;
  44
  45    struct iris_bo *partial_bo;
  46    unsigned partial_bytes;
  47 };
  48
  49 struct iris_batch {
  50    struct iris_screen *screen;
  51    struct pipe_debug_callback *dbg;
  52
  53    /** Current batchbuffer being queued up. */
  54    struct iris_batch_buffer cmdbuf;
  55
  56    /** Last BO submitted to the hardware.  Used for glFinish(). */
  57    struct iris_bo *last_cmd_bo;
  58
  59    uint32_t hw_ctx_id;
  60
  61    /** Which ring this batch targets - a I915_EXEC_RING_MASK value */
  62    uint8_t ring;
  63
  64    bool no_wrap;
  65
  66    /** The validation list */
  67    struct drm_i915_gem_exec_object2 *validation_list;
  68    struct iris_bo **exec_bos;
  69    int exec_count;
  70    int exec_array_size;
  71
  72    /** The amount of aperture space (in bytes) used by all exec_bos */
  73    int aperture_space;
  74
  75 #if DEBUG
  76    /** Map from batch offset to iris_alloc_state data (with DEBUG_BATCH) */
  77    // XXX: unused
  78    struct hash_table *state_sizes;
  79    struct gen_batch_decode_ctx decoder;
  80 #endif
  81 };
  82
  83 void iris_init_batch(struct iris_batch *batch,
  84                      struct iris_screen *screen,
  85                      struct pipe_debug_callback *dbg,
  86                      uint8_t ring);
  87 void iris_batch_free(struct iris_batch *batch);
  88 void iris_require_command_space(struct iris_batch *batch, unsigned size);
  89 void *iris_get_command_space(struct iris_batch *batch, unsigned bytes);
  90 void iris_batch_emit(struct iris_batch *batch, const void *data, unsigned size);
  91
  92 int _iris_batch_flush_fence(struct iris_batch *batch,
  93                             int in_fence_fd, int *out_fence_fd,
  94                             const char *file, int line);
  95
  96
  97 #define iris_batch_flush_fence(batch, in_fence_fd, out_fence_fd) \
  98    _iris_batch_flush_fence((batch), (in_fence_fd), (out_fence_fd), \
  99                            __FILE__, __LINE__)
 100
 101 #define iris_batch_flush(batch) iris_batch_flush_fence((batch), -1, NULL)
 102
 103 bool iris_batch_references(struct iris_batch *batch, struct iris_bo *bo);
 104
 105 #define RELOC_WRITE EXEC_OBJECT_WRITE
 106
 107 void iris_use_pinned_bo(struct iris_batch *batch, struct iris_bo *bo,
 108                         bool writable);
 109
 110 #endif