diff options
| author | Mark Kettenis <kettenis@openbsd.org> | 2023-01-21 20:27:53 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-01-27 14:47:58 -0500 |
| commit | 49a1a4becb2deaeb5764dfe4022807b147b87b9c (patch) | |
| tree | 1d383445294030000b4662e1af919912647d0e80 /test | |
| parent | dd6b68ed4f5bba78c0cd9765fa48b10cb1542dc7 (diff) | |
test: Add test for IOMMU uclass map/unmap ops
Test that the map and unmap operations work for devices that
have DMA translated by an IOMMU and devices that don't have
DMA translated by an IOMMU.
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'test')
| -rw-r--r-- | test/dm/iommu.c | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/test/dm/iommu.c b/test/dm/iommu.c index 94174a7482..6f932ef233 100644 --- a/test/dm/iommu.c +++ b/test/dm/iommu.c @@ -8,12 +8,16 @@ #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)); @@ -22,7 +26,45 @@ static int dm_test_iommu(struct unit_test_state *uts) 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); |