linux/drivers/gpu/drm/i915/gt/selftest_ring.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright © 2020 Intel Corporation
 */

static struct intel_ring *mock_ring(unsigned long sz)
{ … }

static void mock_ring_free(struct intel_ring *ring)
{ … }

static int check_ring_direction(struct intel_ring *ring,
				u32 next, u32 prev,
				int expected)
{ … }

static int check_ring_step(struct intel_ring *ring, u32 x, u32 step)
{ … }

static int check_ring_offset(struct intel_ring *ring, u32 x, u32 step)
{ … }

static int igt_ring_direction(void *dummy)
{ … }

int intel_ring_mock_selftests(void)
{ … }