Adding upstream version 6.8.9.upstream/6.8.9

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 166 insertions, 0 deletions

diff --git a/drivers/gpu/drm/xe/tests/xe_pci.c b/drivers/gpu/drm/xe/tests/xe_pci.c
new file mode 100644
index 0000000000..602793644f
--- /dev/null
+++ b/drivers/gpu/drm/xe/tests/xe_pci.c
@@ -0,0 +1,166 @@
+// 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>
+
+struct kunit_test_data {
+	int ndevs;
+	xe_device_fn xe_fn;
+};
+
+static int dev_to_xe_device_fn(struct device *dev, void *__data)
+
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct kunit_test_data *data = __data;
+	int ret = 0;
+	int idx;
+
+	data->ndevs++;
+
+	if (drm_dev_enter(drm, &idx))
+		ret = data->xe_fn(to_xe_device(dev_get_drvdata(dev)));
+	drm_dev_exit(idx);
+
+	return ret;
+}
+
+/**
+ * xe_call_for_each_device - Iterate over all devices this driver binds to
+ * @xe_fn: Function to call for each device.
+ *
+ * This function iterated over all devices this driver binds to, and calls
+ * @xe_fn: for each one of them. If the called function returns anything else
+ * than 0, iteration is stopped and the return value is returned by this
+ * function. Across each function call, drm_dev_enter() / drm_dev_exit() is
+ * called for the corresponding drm device.
+ *
+ * Return: Number of devices iterated or
+ *         the error code of a call to @xe_fn returning an error code.
+ */
+int xe_call_for_each_device(xe_device_fn xe_fn)
+{
+	int ret;
+	struct kunit_test_data data = {
+	    .xe_fn = xe_fn,
+	    .ndevs = 0,
+	};
+
+	ret = driver_for_each_device(&xe_pci_driver.driver, NULL,
+				     &data, dev_to_xe_device_fn);
+
+	if (!data.ndevs)
+		kunit_skip(current->kunit_test, "test runs only on hardware\n");
+
+	return ret ?: data.ndevs;
+}
+
+/**
+ * xe_call_for_each_graphics_ip - Iterate over all recognized graphics IPs
+ * @xe_fn: Function to call for each device.
+ *
+ * This function iterates over the descriptors for all graphics IPs recognized
+ * by the driver and calls @xe_fn: for each one of them.
+ */
+void xe_call_for_each_graphics_ip(xe_graphics_fn xe_fn)
+{
+	const struct xe_graphics_desc *ip, *last = NULL;
+
+	for (int i = 0; i < ARRAY_SIZE(graphics_ip_map); i++) {
+		ip = graphics_ip_map[i].ip;
+		if (ip == last)
+			continue;
+
+		xe_fn(ip);
+		last = ip;
+	}
+}
+EXPORT_SYMBOL_IF_KUNIT(xe_call_for_each_graphics_ip);
+
+/**
+ * xe_call_for_each_media_ip - Iterate over all recognized media IPs
+ * @xe_fn: Function to call for each device.
+ *
+ * This function iterates over the descriptors for all media IPs recognized
+ * by the driver and calls @xe_fn: for each one of them.
+ */
+void xe_call_for_each_media_ip(xe_media_fn xe_fn)
+{
+	const struct xe_media_desc *ip, *last = NULL;
+
+	for (int i = 0; i < ARRAY_SIZE(media_ip_map); i++) {
+		ip = media_ip_map[i].ip;
+		if (ip == last)
+			continue;
+
+		xe_fn(ip);
+		last = ip;
+	}
+}
+EXPORT_SYMBOL_IF_KUNIT(xe_call_for_each_media_ip);
+
+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);
+	}
+}
+
+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:
+	kunit_activate_static_stub(test, read_gmdid, fake_read_gmdid);
+
+	xe_info_init_early(xe, desc, subplatform_desc);
+	xe_info_init(xe, desc->graphics, desc->media);
+
+	return 0;
+}
+EXPORT_SYMBOL_IF_KUNIT(xe_pci_fake_device_init);