Add a set of tests for the IOMMU uclass.
Signed-off-by: Mark Kettenis kettenis@openbsd.org --- arch/sandbox/dts/test.dts | 6 ++++++ configs/sandbox64_defconfig | 1 + configs/sandbox_defconfig | 1 + configs/sandbox_flattree_defconfig | 1 + configs/sandbox_noinst_defconfig | 1 + configs/sandbox_spl_defconfig | 1 + drivers/iommu/Makefile | 2 ++ drivers/iommu/sandbox_iommu.c | 18 ++++++++++++++++++ test/dm/Makefile | 1 + test/dm/iommu.c | 28 ++++++++++++++++++++++++++++ 10 files changed, 60 insertions(+) create mode 100644 drivers/iommu/sandbox_iommu.c create mode 100644 test/dm/iommu.c
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index e27d106466..8cd688e8d2 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -764,6 +764,11 @@ vss-microvolts = <0>; };
+ iommu: iommu@0 { + compatible = "sandbox,iommu"; + #iommu-cells = <0>; + }; + irq: irq { compatible = "sandbox,irq"; interrupt-controller; @@ -1226,6 +1231,7 @@
usb_1: usb@1 { compatible = "sandbox,usb"; + iommus = <&iommu>; hub { compatible = "usb-hub"; usb,device-class = <9>; diff --git a/configs/sandbox64_defconfig b/configs/sandbox64_defconfig index df9633d762..acfcf8282a 100644 --- a/configs/sandbox64_defconfig +++ b/configs/sandbox64_defconfig @@ -131,6 +131,7 @@ CONFIG_SPL_I2C_MUX=y CONFIG_I2C_ARB_GPIO_CHALLENGE=y CONFIG_CROS_EC_KEYB=y CONFIG_I8042_KEYB=y +CONFIG_IOMMU=y CONFIG_LED=y CONFIG_LED_BLINK=y CONFIG_LED_GPIO=y diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig index d601677190..e50c428833 100644 --- a/configs/sandbox_defconfig +++ b/configs/sandbox_defconfig @@ -169,6 +169,7 @@ CONFIG_SPL_I2C_MUX=y CONFIG_I2C_ARB_GPIO_CHALLENGE=y CONFIG_CROS_EC_KEYB=y CONFIG_I8042_KEYB=y +CONFIG_IOMMU=y CONFIG_LED=y CONFIG_LED_BLINK=y CONFIG_LED_GPIO=y diff --git a/configs/sandbox_flattree_defconfig b/configs/sandbox_flattree_defconfig index 11015744e7..80bb0320a7 100644 --- a/configs/sandbox_flattree_defconfig +++ b/configs/sandbox_flattree_defconfig @@ -108,6 +108,7 @@ CONFIG_SPL_I2C_MUX=y CONFIG_I2C_ARB_GPIO_CHALLENGE=y CONFIG_CROS_EC_KEYB=y CONFIG_I8042_KEYB=y +CONFIG_IOMMU=y CONFIG_LED=y CONFIG_LED_BLINK=y CONFIG_LED_GPIO=y diff --git a/configs/sandbox_noinst_defconfig b/configs/sandbox_noinst_defconfig index b3584563d2..dcf13234ea 100644 --- a/configs/sandbox_noinst_defconfig +++ b/configs/sandbox_noinst_defconfig @@ -129,6 +129,7 @@ CONFIG_I2C_MUX=y CONFIG_I2C_ARB_GPIO_CHALLENGE=y CONFIG_CROS_EC_KEYB=y CONFIG_I8042_KEYB=y +CONFIG_IOMMU=y CONFIG_LED=y CONFIG_LED_BLINK=y CONFIG_LED_GPIO=y diff --git a/configs/sandbox_spl_defconfig b/configs/sandbox_spl_defconfig index 73cf5dd2b0..0e97ec0f9e 100644 --- a/configs/sandbox_spl_defconfig +++ b/configs/sandbox_spl_defconfig @@ -131,6 +131,7 @@ CONFIG_I2C_MUX=y CONFIG_I2C_ARB_GPIO_CHALLENGE=y CONFIG_CROS_EC_KEYB=y CONFIG_I8042_KEYB=y +CONFIG_IOMMU=y CONFIG_LED=y CONFIG_LED_BLINK=y CONFIG_LED_GPIO=y diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile index f1ceb10150..af1c6bbb7a 100644 --- a/drivers/iommu/Makefile +++ b/drivers/iommu/Makefile @@ -1,3 +1,5 @@ # SPDX-License-Identifier: GPL-2.0+
obj-$(CONFIG_IOMMU) += iommu-uclass.o + +obj-$(CONFIG_SANDBOX) += sandbox_iommu.o diff --git a/drivers/iommu/sandbox_iommu.c b/drivers/iommu/sandbox_iommu.c new file mode 100644 index 0000000000..c8161a40ae --- /dev/null +++ b/drivers/iommu/sandbox_iommu.c @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2021 Mark Kettenis kettenis@openbsd.org + */ + +#include <common.h> +#include <dm.h> + +static const struct udevice_id sandbox_iommu_ids[] = { + { .compatible = "sandbox,iommu" }, + { /* sentinel */ } +}; + +U_BOOT_DRIVER(sandbox_iommu) = { + .name = "sandbox_iommu", + .id = UCLASS_IOMMU, + .of_match = sandbox_iommu_ids, +}; diff --git a/test/dm/Makefile b/test/dm/Makefile index 55162e9499..7de013f636 100644 --- a/test/dm/Makefile +++ b/test/dm/Makefile @@ -48,6 +48,7 @@ obj-$(CONFIG_DM_I2C) += i2c.o obj-$(CONFIG_SOUND) += i2s.o obj-y += irq.o obj-$(CONFIG_CLK_K210_SET_RATE) += k210_pll.o +obj-$(CONFIG_IOMMU) += iommu.o obj-$(CONFIG_LED) += led.o obj-$(CONFIG_DM_MAILBOX) += mailbox.o obj-$(CONFIG_DM_MDIO) += mdio.o diff --git a/test/dm/iommu.c b/test/dm/iommu.c new file mode 100644 index 0000000000..94174a7482 --- /dev/null +++ b/test/dm/iommu.c @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2021 Mark Kettenis kettenis@openbsd.org + */ + +#include <common.h> +#include <dm.h> +#include <dm/test.h> +#include <dm/uclass-internal.h> +#include <iommu.h> +#include <test/test.h> +#include <test/ut.h> + +static int dm_test_iommu(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 USB probes the IOMMU through the "iommus" property */ + ut_assertok(uclass_probe_all(UCLASS_USB)); + ut_assert(dev_get_flags(dev) & DM_FLAG_ACTIVATED); + + return 0; +} + +DM_TEST(dm_test_iommu, UT_TESTF_SCAN_FDT);