drivers/gpu/drm/i915/selftests/mock_uncore.c

   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
  25 #include "mock_uncore.h"
  26
  27 #define __nop_write(x) \
  28 static void \
  29 nop_write##x(struct intel_uncore *uncore, i915_reg_t reg, u##x val, bool trace) { }
  30 __nop_write(8)
  31 __nop_write(16)
  32 __nop_write(32)
  33
  34 #define __nop_read(x) \
  35 static u##x \
  36 nop_read##x(struct intel_uncore *uncore, i915_reg_t reg, bool trace) { return 0; }
  37 __nop_read(8)
  38 __nop_read(16)
  39 __nop_read(32)
  40 __nop_read(64)
  41
  42 void mock_uncore_init(struct intel_uncore *uncore,
  43                       struct drm_i915_private *i915)
  44 {
  45         intel_uncore_init_early(uncore, i915);
  46
  47         ASSIGN_RAW_WRITE_MMIO_VFUNCS(uncore, nop);
  48         ASSIGN_RAW_READ_MMIO_VFUNCS(uncore, nop);
  49 }