linux/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c

/*
 * SPDX-License-Identifier: MIT
 *
 * Copyright © 2017 Intel Corporation
 */

#include <linux/prime_numbers.h>

#include "gt/intel_engine_pm.h"
#include "gt/intel_gpu_commands.h"
#include "gt/intel_gt.h"
#include "gt/intel_gt_pm.h"
#include "gt/intel_ring.h"

#include "i915_selftest.h"
#include "selftests/i915_random.h"

struct context { … };

static int cpu_set(struct context *ctx, unsigned long offset, u32 v)
{ … }

static int cpu_get(struct context *ctx, unsigned long offset, u32 *v)
{ … }

static int gtt_set(struct context *ctx, unsigned long offset, u32 v)
{ … }

static int gtt_get(struct context *ctx, unsigned long offset, u32 *v)
{ … }

static int wc_set(struct context *ctx, unsigned long offset, u32 v)
{ … }

static int wc_get(struct context *ctx, unsigned long offset, u32 *v)
{ … }

static int gpu_set(struct context *ctx, unsigned long offset, u32 v)
{ … }

static bool always_valid(struct context *ctx)
{ … }

static bool needs_fence_registers(struct context *ctx)
{ … }

static bool needs_mi_store_dword(struct context *ctx)
{ … }

static const struct igt_coherency_mode { … } igt_coherency_mode[] = …;

static struct intel_engine_cs *
random_engine(struct drm_i915_private *i915, struct rnd_state *prng)
{ … }

static int igt_gem_coherency(void *arg)
{ … }

int i915_gem_coherency_live_selftests(struct drm_i915_private *i915)
{ … }