1 // SPDX-License-Identifier: GPL-2.0
3  * KUnit test for the FPGA Region
12 #include <linux/fpga/fpga-bridge.h>
13 #include <linux/fpga/fpga-mgr.h>
14 #include <linux/fpga/fpga-region.h>
53 	struct mgr_stats *stats = mgr->priv;  in op_write()
55 	stats->write_count++;  in op_write()
61  * Fake FPGA manager that implements only the write op to count the number
72 	struct bridge_stats *stats = bridge->priv;  in op_enable_set()
74 	if (!stats->enable && enable)  in op_enable_set()
75 		stats->cycles_count++;  in op_enable_set()
77 	stats->enable = enable;  in op_enable_set()
83  * Fake FPGA bridge that implements only enable_set op to count the number
92 	struct fpga_bridge *bridge = region->priv;  in fake_region_get_bridges()
94 	return fpga_bridge_get_to_list(bridge->dev.parent, region->info, &region->bridge_list);  in fake_region_get_bridges()
99 	return dev->parent == data;  in fake_region_match()
104 	struct test_ctx *ctx = test->priv;  in fpga_region_test_class_find()
107 	region = fpga_region_class_find(NULL, ctx->region_dev, fake_region_match);  in fpga_region_test_class_find()
108 	KUNIT_EXPECT_PTR_EQ(test, region, ctx->region);  in fpga_region_test_class_find()
110 	put_device(&region->dev);  in fpga_region_test_class_find()
114  * FPGA Region programming test. The Region must call get_bridges() to get
119 	struct test_ctx *ctx = test->priv;  in fpga_region_test_program_fpga()
124 	img_info = fpga_image_info_alloc(ctx->mgr_dev);  in fpga_region_test_program_fpga()
130 	img_info->buf = img_buf;  in fpga_region_test_program_fpga()
131 	img_info->count = sizeof(img_buf);  in fpga_region_test_program_fpga()
133 	ctx->region->info = img_info;  in fpga_region_test_program_fpga()
134 	ret = fpga_region_program_fpga(ctx->region);  in fpga_region_test_program_fpga()
137 	KUNIT_EXPECT_EQ(test, 1, ctx->mgr_stats.write_count);  in fpga_region_test_program_fpga()
138 	KUNIT_EXPECT_EQ(test, 1, ctx->bridge_stats.cycles_count);  in fpga_region_test_program_fpga()
140 	fpga_bridges_put(&ctx->region->bridge_list);  in fpga_region_test_program_fpga()
142 	ret = fpga_region_program_fpga(ctx->region);  in fpga_region_test_program_fpga()
145 	KUNIT_EXPECT_EQ(test, 2, ctx->mgr_stats.write_count);  in fpga_region_test_program_fpga()
146 	KUNIT_EXPECT_EQ(test, 2, ctx->bridge_stats.cycles_count);  in fpga_region_test_program_fpga()
148 	fpga_bridges_put(&ctx->region->bridge_list);  in fpga_region_test_program_fpga()
166 	ctx->mgr_dev = kunit_device_register(test, "fpga-manager-test-dev");  in fpga_region_test_init()
167 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx->mgr_dev);  in fpga_region_test_init()
169 	ctx->mgr = devm_fpga_mgr_register(ctx->mgr_dev, "Fake FPGA Manager",  in fpga_region_test_init()
170 					  &fake_mgr_ops, &ctx->mgr_stats);  in fpga_region_test_init()
171 	KUNIT_ASSERT_FALSE(test, IS_ERR_OR_NULL(ctx->mgr));  in fpga_region_test_init()
173 	ctx->bridge_dev = kunit_device_register(test, "fpga-bridge-test-dev");  in fpga_region_test_init()
174 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx->bridge_dev);  in fpga_region_test_init()
176 	ctx->bridge = fpga_bridge_register(ctx->bridge_dev, "Fake FPGA Bridge",  in fpga_region_test_init()
177 					   &fake_bridge_ops, &ctx->bridge_stats);  in fpga_region_test_init()
178 	KUNIT_ASSERT_FALSE(test, IS_ERR_OR_NULL(ctx->bridge));  in fpga_region_test_init()
180 	ctx->bridge_stats.enable = true;  in fpga_region_test_init()
182 	ret = kunit_add_action_or_reset(test, fpga_bridge_unregister_wrapper, ctx->bridge);  in fpga_region_test_init()
185 	ctx->region_dev = kunit_device_register(test, "fpga-region-test-dev");  in fpga_region_test_init()
186 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx->region_dev);  in fpga_region_test_init()
188 	region_info.mgr = ctx->mgr;  in fpga_region_test_init()
189 	region_info.priv = ctx->bridge;  in fpga_region_test_init()
192 	ctx->region = fpga_region_register_full(ctx->region_dev, &region_info);  in fpga_region_test_init()
193 	KUNIT_ASSERT_FALSE(test, IS_ERR_OR_NULL(ctx->region));  in fpga_region_test_init()
195 	ret = kunit_add_action_or_reset(test, fpga_region_unregister_wrapper, ctx->region);  in fpga_region_test_init()
198 	test->priv = ctx;  in fpga_region_test_init()