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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2021 Mark Kettenis <kettenis@openbsd.org>
*/
#include <dm.h>
#include <dm/test.h>
#include <dm/uclass-internal.h>
#include <iommu.h>
#include <malloc.h>
#include <test/test.h>
#include <test/ut.h>
#include <asm/io.h>
static int dm_test_iommu(struct unit_test_state *uts)
{
struct udevice *dev;
dma_addr_t dva;
void *addr;
ut_assertok(uclass_find_device(UCLASS_IOMMU, 0, &dev));
ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
/* Probing USB probes the IOMMU through the "iommus" property */
ut_assertok(uclass_probe_all(UCLASS_USB));
ut_assert(dev_get_flags(dev) & DM_FLAG_ACTIVATED);
addr = malloc(256);
ut_assert(addr);
ut_assertok(uclass_find_device(UCLASS_USB, 0, &dev));
dva = dev_iommu_dma_map(dev, addr, 256);
ut_assert(dva >= 0x89abc000 && dva < 0x89ac00000);
dev_iommu_dma_unmap(dev, dva, 256);
free(addr);
return 0;
}
DM_TEST(dm_test_iommu, UT_TESTF_SCAN_FDT);
static int dm_test_iommu_noiommu(struct unit_test_state *uts)
{
struct udevice *dev;
dma_addr_t dva;
void *addr;
ut_assertok(uclass_find_device(UCLASS_IOMMU, 0, &dev));
ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
/* Probing ethernet should not probe the IOMMU */
ut_assertok(uclass_probe_all(UCLASS_ETH));
ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
addr = malloc(256);
ut_assert(addr);
ut_assertok(uclass_find_device(UCLASS_ETH, 0, &dev));
dva = dev_iommu_dma_map(dev, addr, 256);
ut_assert(dva == virt_to_phys(addr));
dev_iommu_dma_unmap(dev, dva, 256);
free(addr);
return 0;
}
DM_TEST(dm_test_iommu_noiommu, UT_TESTF_SCAN_FDT);
static int dm_test_iommu_pci(struct unit_test_state *uts)
{
struct udevice *dev;
ut_assertok(uclass_find_device(UCLASS_IOMMU, 0, &dev));
ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
/* Probing P2SB probes the IOMMU through the "iommu-map" property */
ut_assertok(uclass_probe_all(UCLASS_P2SB));
ut_assert(dev_get_flags(dev) & DM_FLAG_ACTIVATED);
return 0;
}
DM_TEST(dm_test_iommu_pci, UT_TESTF_SCAN_FDT);
static int dm_test_iommu_pci_noiommu(struct unit_test_state *uts)
{
struct udevice *dev;
ut_assertok(uclass_find_device(UCLASS_IOMMU, 0, &dev));
ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
/* Probing PMC should not probe the IOMMU */
ut_assertok(uclass_probe_all(UCLASS_ACPI_PMC));
ut_assert(!(dev_get_flags(dev) & DM_FLAG_ACTIVATED));
return 0;
}
DM_TEST(dm_test_iommu_pci_noiommu, UT_TESTF_SCAN_FDT);
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