cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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mock_uncore.c (1767B)


      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) \
     28static void \
     29nop_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) \
     35static u##x \
     36nop_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
     42void mock_uncore_init(struct intel_uncore *uncore,
     43		      struct drm_i915_private *i915)
     44{
     45	intel_uncore_init_early(uncore, to_gt(i915));
     46
     47	ASSIGN_RAW_WRITE_MMIO_VFUNCS(uncore, nop);
     48	ASSIGN_RAW_READ_MMIO_VFUNCS(uncore, nop);
     49}