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a383c96892
Rework dev_phys_to_bus() and dev_bus_to_phys() to respect the size of the area specified in dma-ranges DT property. The area outside of ranges is remapped 1:1, while the area in the ranges is remapped according to the description in the dma-ranges property. Adjust the test to test the area within the remapped range, not area outside the remapped range, which was incorrect. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Markus Schneider-Pargmann <msp@baylibre.com>
37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2020 Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
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*/
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#include <dm.h>
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#include <mapmem.h>
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#include <phys2bus.h>
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#include <dm/device.h>
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#include <dm/ofnode.h>
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#include <dm/root.h>
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#include <dm/test.h>
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#include <dm/uclass-internal.h>
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#include <test/ut.h>
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static int dm_test_phys_to_bus(struct unit_test_state *uts)
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{
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struct udevice *dev;
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ofnode node;
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node = ofnode_path("/mmio-bus@0");
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ut_assert(ofnode_valid(node));
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ut_assertok(uclass_get_device_by_ofnode(UCLASS_TEST_BUS, node, &dev));
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/* In this case it should be transparent, no dma-ranges in parent bus */
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ut_asserteq_addr((void*)0xfffffULL, (void*)dev_phys_to_bus(dev, 0xfffff));
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ut_asserteq_addr((void*)0xfffffULL, (void*)(ulong)dev_bus_to_phys(dev, 0xfffff));
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node = ofnode_path("/mmio-bus@0/subnode@0");
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ut_assert(ofnode_valid(node));
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ut_assertok(uclass_get_device_by_ofnode(UCLASS_TEST_FDT, node, &dev));
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ut_asserteq_addr((void*)0x1003ffffULL, (void*)dev_phys_to_bus(dev, 0x3ffff));
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ut_asserteq_addr((void*)0x3ffffULL, (void*)(ulong)dev_bus_to_phys(dev, 0x1003ffff));
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return 0;
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}
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DM_TEST(dm_test_phys_to_bus, UTF_SCAN_PDATA | UTF_SCAN_FDT);
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