drivers/gpu/drm/xe/tests/xe_pci.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/xe/tests/xe_pci.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/xe/tests/xe_pci.c
Extension
.c
Size
13008 bytes
Lines
419
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: exported/initcall integration point
Status
integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0 AND MIT
/*
 * Copyright © 2023 Intel Corporation
 */

#include "tests/xe_pci_test.h"

#include "tests/xe_test.h"

#include <kunit/test-bug.h>
#include <kunit/test.h>
#include <kunit/test-bug.h>
#include <kunit/visibility.h>

#define PLATFORM_CASE(platform__, graphics_step__)					\
	{										\
		.platform = XE_ ## platform__,						\
		.subplatform = XE_SUBPLATFORM_NONE,					\
		.step = { .graphics = STEP_ ## graphics_step__ }			\
	}

#define SUBPLATFORM_CASE(platform__, subplatform__, graphics_step__)			\
	{										\
		.platform = XE_ ## platform__,						\
		.subplatform = XE_SUBPLATFORM_ ## platform__ ## _ ## subplatform__,	\
		.step = { .graphics = STEP_ ## graphics_step__ }			\
	}

#define GMDID_CASE(platform__, graphics_verx100__, graphics_step__,			\
		   media_verx100__, media_step__)					\
	{										\
		.platform = XE_ ## platform__,						\
		.subplatform = XE_SUBPLATFORM_NONE,					\
		.graphics_verx100 = graphics_verx100__,					\
		.media_verx100 = media_verx100__,					\
		.step = { .graphics = STEP_ ## graphics_step__,				\
			   .media = STEP_ ## media_step__ }				\
	}

static const struct xe_pci_fake_data cases[] = {
	PLATFORM_CASE(TIGERLAKE, B0),
	PLATFORM_CASE(DG1, A0),
	PLATFORM_CASE(DG1, B0),
	PLATFORM_CASE(ALDERLAKE_S, A0),
	PLATFORM_CASE(ALDERLAKE_S, B0),
	PLATFORM_CASE(ALDERLAKE_S, C0),
	PLATFORM_CASE(ALDERLAKE_S, D0),
	PLATFORM_CASE(ALDERLAKE_P, A0),
	PLATFORM_CASE(ALDERLAKE_P, B0),
	PLATFORM_CASE(ALDERLAKE_P, C0),
	SUBPLATFORM_CASE(ALDERLAKE_S, RPLS, D0),
	SUBPLATFORM_CASE(ALDERLAKE_P, RPLU, E0),
	SUBPLATFORM_CASE(DG2, G10, C0),
	SUBPLATFORM_CASE(DG2, G11, B1),
	SUBPLATFORM_CASE(DG2, G12, A1),
	GMDID_CASE(METEORLAKE, 1270, A0, 1300, A0),
	GMDID_CASE(METEORLAKE, 1271, A0, 1300, A0),
	GMDID_CASE(METEORLAKE, 1274, A0, 1300, A0),
	GMDID_CASE(LUNARLAKE, 2004, A0, 2000, A0),
	GMDID_CASE(LUNARLAKE, 2004, B0, 2000, A0),
	GMDID_CASE(BATTLEMAGE, 2001, A0, 1301, A1),
	GMDID_CASE(PANTHERLAKE, 3000, A0, 3000, A0),
};

KUNIT_ARRAY_PARAM(platform, cases, xe_pci_fake_data_desc);

/**
 * xe_pci_fake_data_gen_params - Generate struct xe_pci_fake_data parameters
 * @test: test context object
 * @prev: the pointer to the previous parameter to iterate from or NULL
 * @desc: output buffer with minimum size of KUNIT_PARAM_DESC_SIZE
 *
 * This function prepares struct xe_pci_fake_data parameter.
 *
 * To be used only as a parameter generator function in &KUNIT_CASE_PARAM.
 *
 * Return: pointer to the next parameter or NULL if no more parameters
 */
const void *xe_pci_fake_data_gen_params(struct kunit *test, const void *prev, char *desc)
{
	return platform_gen_params(test, prev, desc);
}
EXPORT_SYMBOL_IF_KUNIT(xe_pci_fake_data_gen_params);

static const struct xe_device_desc *lookup_desc(enum xe_platform p)
{
	const struct xe_device_desc *desc;
	const struct pci_device_id *ids;

	for (ids = pciidlist; ids->driver_data; ids++) {

Annotation

Implementation Notes