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793f8ab62c
Add kernel patches for version 6.1. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
117 lines
3.1 KiB
Diff
117 lines
3.1 KiB
Diff
From baf556e423385c116217e143fe352d2b062a10e3 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Mon, 14 Nov 2022 14:00:21 +0100
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Subject: [PATCH] drm/tests: Add Kunit Helpers
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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As the number of kunit tests in KMS grows further, we start to have
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multiple test suites that, for example, need to register a mock DRM
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driver to interact with the KMS function they are supposed to test.
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Let's add a file meant to provide those kind of helpers to avoid
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duplication.
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Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
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Tested-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
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Link: https://lore.kernel.org/r/20220728-rpi-analog-tv-properties-v9-2-24b168e5bcd5@cerno.tech
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Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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---
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drivers/gpu/drm/tests/Makefile | 1 +
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drivers/gpu/drm/tests/drm_kunit_helpers.c | 64 +++++++++++++++++++++++
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drivers/gpu/drm/tests/drm_kunit_helpers.h | 9 ++++
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3 files changed, 74 insertions(+)
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create mode 100644 drivers/gpu/drm/tests/drm_kunit_helpers.c
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create mode 100644 drivers/gpu/drm/tests/drm_kunit_helpers.h
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--- a/drivers/gpu/drm/tests/Makefile
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+++ b/drivers/gpu/drm/tests/Makefile
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@@ -8,6 +8,7 @@ obj-$(CONFIG_DRM_KUNIT_TEST) += \
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drm_format_helper_test.o \
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drm_format_test.o \
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drm_framebuffer_test.o \
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+ drm_kunit_helpers.o \
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drm_mm_test.o \
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drm_plane_helper_test.o \
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drm_rect_test.o
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--- /dev/null
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+++ b/drivers/gpu/drm/tests/drm_kunit_helpers.c
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@@ -0,0 +1,64 @@
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+#include <drm/drm_drv.h>
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+#include <drm/drm_managed.h>
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+
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+#include <kunit/resource.h>
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+
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+#include <linux/device.h>
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+
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+struct kunit_dev {
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+ struct drm_device base;
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+};
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+
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+static const struct drm_mode_config_funcs drm_mode_config_funcs = {
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+};
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+
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+static int dev_init(struct kunit_resource *res, void *ptr)
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+{
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+ char *name = ptr;
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+ struct device *dev;
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+
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+ dev = root_device_register(name);
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+ if (IS_ERR(dev))
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+ return PTR_ERR(dev);
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+
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+ res->data = dev;
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+ return 0;
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+}
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+
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+static void dev_free(struct kunit_resource *res)
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+{
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+ struct device *dev = res->data;
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+
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+ root_device_unregister(dev);
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+}
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+
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+struct drm_device *drm_kunit_device_init(struct kunit *test, u32 features, char *name)
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+{
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+ struct kunit_dev *kdev;
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+ struct drm_device *drm;
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+ struct drm_driver *driver;
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+ struct device *dev;
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+ int ret;
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+
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+ dev = kunit_alloc_resource(test, dev_init, dev_free, GFP_KERNEL, name);
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+ if (!dev)
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+ return ERR_PTR(-ENOMEM);
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+
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+ driver = kunit_kzalloc(test, sizeof(*driver), GFP_KERNEL);
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+ if (!driver)
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+ return ERR_PTR(-ENOMEM);
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+
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+ driver->driver_features = features;
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+ kdev = devm_drm_dev_alloc(dev, driver, struct kunit_dev, base);
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+ if (IS_ERR(kdev))
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+ return ERR_CAST(kdev);
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+
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+ drm = &kdev->base;
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+ drm->mode_config.funcs = &drm_mode_config_funcs;
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+
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+ ret = drmm_mode_config_init(drm);
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+ if (ret)
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+ return ERR_PTR(ret);
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+
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+ return drm;
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+}
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--- /dev/null
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+++ b/drivers/gpu/drm/tests/drm_kunit_helpers.h
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@@ -0,0 +1,9 @@
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+#ifndef DRM_KUNIT_HELPERS_H_
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+#define DRM_KUNIT_HELPERS_H_
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+
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+struct drm_device;
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+struct kunit;
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+
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+struct drm_device *drm_kunit_device_init(struct kunit *test, u32 features, char *name);
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+
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+#endif // DRM_KUNIT_HELPERS_H_
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