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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igt_flush_test.c (676B)

      1/*
      2 * SPDX-License-Identifier: MIT
      3 *
      4 * Copyright © 2018 Intel Corporation
      5 */
      6
      7#include "gt/intel_gt.h"
      8#include "gt/intel_gt_requests.h"
      9
     10#include "i915_drv.h"
     11#include "i915_selftest.h"
     12
     13#include "igt_flush_test.h"
     14
     15int igt_flush_test(struct drm_i915_private *i915)
     16{
     17	struct intel_gt *gt = to_gt(i915);
     18	int ret = intel_gt_is_wedged(gt) ? -EIO : 0;
     19
     20	cond_resched();
     21
     22	if (intel_gt_wait_for_idle(gt, HZ * 3) == -ETIME) {
     23		pr_err("%pS timed out, cancelling all further testing.\n",
     24		       __builtin_return_address(0));
     25
     26		GEM_TRACE("%pS timed out.\n",
     27			  __builtin_return_address(0));
     28		GEM_TRACE_DUMP();
     29
     30		intel_gt_set_wedged(gt);
     31		ret = -EIO;
     32	}
     33
     34	return ret;
     35}