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// 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>
static void xe_ip_kunit_desc(const struct xe_ip *param, char *desc)
{
snprintf(desc, KUNIT_PARAM_DESC_SIZE, "%u.%02u %s",
param->verx100 / 100, param->verx100 % 100, param->name);
}
KUNIT_ARRAY_PARAM(graphics_ip, graphics_ips, xe_ip_kunit_desc);
KUNIT_ARRAY_PARAM(media_ip, media_ips, xe_ip_kunit_desc);
static void xe_pci_id_kunit_desc(const struct pci_device_id *param, char *desc)
{
const struct xe_device_desc *dev_desc =
(const struct xe_device_desc *)param->driver_data;
if (dev_desc)
snprintf(desc, KUNIT_PARAM_DESC_SIZE, "0x%X (%s)",
param->device, dev_desc->platform_name);
}
KUNIT_ARRAY_PARAM(pci_id, pciidlist, xe_pci_id_kunit_desc);
/**
* xe_pci_graphics_ip_gen_param - Generate graphics struct xe_ip parameters
* @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_ip 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_graphics_ip_gen_param(const void *prev, char *desc)
{
return graphics_ip_gen_params(prev, desc);
}
EXPORT_SYMBOL_IF_KUNIT(xe_pci_graphics_ip_gen_param);
/**
* xe_pci_media_ip_gen_param - Generate media struct xe_ip parameters
* @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_ip 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_media_ip_gen_param(const void *prev, char *desc)
{
return media_ip_gen_params(prev, desc);
}
EXPORT_SYMBOL_IF_KUNIT(xe_pci_media_ip_gen_param);
/**
* xe_pci_id_gen_param - Generate struct pci_device_id parameters
* @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 pci_device_id 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_id_gen_param(const void *prev, char *desc)
{
const struct pci_device_id *pci = pci_id_gen_params(prev, desc);
return pci->driver_data ? pci : NULL;
}
EXPORT_SYMBOL_IF_KUNIT(xe_pci_id_gen_param);
static void fake_read_gmdid(struct xe_device *xe, enum xe_gmdid_type type,
u32 *ver, u32 *revid)
{
struct kunit *test = kunit_get_current_test();
struct xe_pci_fake_data *data = test->priv;
if (type == GMDID_MEDIA) {
*ver = data->media_verx100;
*revid = xe_step_to_gmdid(data->media_step);
} else {
*ver = data->graphics_verx100;
*revid = xe_step_to_gmdid(data->graphics_step);
}
}
static void fake_xe_info_probe_tile_count(struct xe_device *xe)
{
/* Nothing to do, just use the statically defined value. */
}
int xe_pci_fake_device_init(struct xe_device *xe)
{
struct kunit *test = kunit_get_current_test();
struct xe_pci_fake_data *data = test->priv;
const struct pci_device_id *ent = pciidlist;
const struct xe_device_desc *desc;
const struct xe_subplatform_desc *subplatform_desc;
if (!data) {
desc = (const void *)ent->driver_data;
subplatform_desc = NULL;
goto done;
}
for (ent = pciidlist; ent->device; ent++) {
desc = (const void *)ent->driver_data;
if (desc->platform == data->platform)
break;
}
if (!ent->device)
return -ENODEV;
for (subplatform_desc = desc->subplatforms;
subplatform_desc && subplatform_desc->subplatform;
subplatform_desc++)
if (subplatform_desc->subplatform == data->subplatform)
break;
if (data->subplatform != XE_SUBPLATFORM_NONE && !subplatform_desc)
return -ENODEV;
done:
xe->sriov.__mode = data && data->sriov_mode ?
data->sriov_mode : XE_SRIOV_MODE_NONE;
kunit_activate_static_stub(test, read_gmdid, fake_read_gmdid);
kunit_activate_static_stub(test, xe_info_probe_tile_count,
fake_xe_info_probe_tile_count);
xe_info_init_early(xe, desc, subplatform_desc);
xe_info_init(xe, desc);
return 0;
}
EXPORT_SYMBOL_IF_KUNIT(xe_pci_fake_device_init);
/**
* xe_pci_live_device_gen_param - Helper to iterate Xe devices as KUnit parameters
* @prev: the previously returned value, or NULL for the first iteration
* @desc: the buffer for a parameter name
*
* Iterates over the available Xe devices on the system. Uses the device name
* as the parameter name.
*
* To be used only as a parameter generator function in &KUNIT_CASE_PARAM.
*
* Return: pointer to the next &struct xe_device ready to be used as a parameter
* or NULL if there are no more Xe devices on the system.
*/
const void *xe_pci_live_device_gen_param(const void *prev, char *desc)
{
const struct xe_device *xe = prev;
struct device *dev = xe ? xe->drm.dev : NULL;
struct device *next;
next = driver_find_next_device(&xe_pci_driver.driver, dev);
if (dev)
put_device(dev);
if (!next)
return NULL;
snprintf(desc, KUNIT_PARAM_DESC_SIZE, "%s", dev_name(next));
return pdev_to_xe_device(to_pci_dev(next));
}
EXPORT_SYMBOL_IF_KUNIT(xe_pci_live_device_gen_param);
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