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iommufd/selftest: Test out_capabilities in IOMMU_GET_HW_INFO
Enumerate the capabilities from the mock device and test whether it advertises as expected. Include it as part of the iommufd_dirty_tracking fixture. Link: https://lore.kernel.org/r/20231024135109.73787-18-joao.m.martins@oracle.com Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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@ -376,7 +376,18 @@ static phys_addr_t mock_domain_iova_to_phys(struct iommu_domain *domain,
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static bool mock_domain_capable(struct device *dev, enum iommu_cap cap)
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{
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return cap == IOMMU_CAP_CACHE_COHERENCY;
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struct mock_dev *mdev = container_of(dev, struct mock_dev, dev);
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switch (cap) {
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case IOMMU_CAP_CACHE_COHERENCY:
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return true;
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case IOMMU_CAP_DIRTY_TRACKING:
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return !(mdev->flags & MOCK_FLAGS_DEVICE_NO_DIRTY);
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default:
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break;
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}
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return false;
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}
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static void mock_domain_set_plaform_dma_ops(struct device *dev)
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@ -1563,6 +1563,23 @@ TEST_F(iommufd_dirty_tracking, set_dirty_tracking)
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test_ioctl_destroy(hwpt_id);
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}
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TEST_F(iommufd_dirty_tracking, device_dirty_capability)
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{
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uint32_t caps = 0;
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uint32_t stddev_id;
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uint32_t hwpt_id;
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test_cmd_hwpt_alloc(self->idev_id, self->ioas_id, 0, &hwpt_id);
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test_cmd_mock_domain(hwpt_id, &stddev_id, NULL, NULL);
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test_cmd_get_hw_capabilities(self->idev_id, caps,
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IOMMU_HW_CAP_DIRTY_TRACKING);
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ASSERT_EQ(IOMMU_HW_CAP_DIRTY_TRACKING,
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caps & IOMMU_HW_CAP_DIRTY_TRACKING);
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test_ioctl_destroy(stddev_id);
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test_ioctl_destroy(hwpt_id);
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}
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TEST_F(iommufd_dirty_tracking, get_dirty_bitmap)
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{
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uint32_t stddev_id;
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@ -612,7 +612,7 @@ TEST_FAIL_NTH(basic_fail_nth, device)
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&idev_id))
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return -1;
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if (_test_cmd_get_hw_info(self->fd, idev_id, &info, sizeof(info)))
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if (_test_cmd_get_hw_info(self->fd, idev_id, &info, sizeof(info), NULL))
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return -1;
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if (_test_cmd_hwpt_alloc(self->fd, idev_id, ioas_id, 0, &hwpt_id))
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@ -535,8 +535,8 @@ static void teardown_iommufd(int fd, struct __test_metadata *_metadata)
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#endif
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/* @data can be NULL */
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static int _test_cmd_get_hw_info(int fd, __u32 device_id,
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void *data, size_t data_len)
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static int _test_cmd_get_hw_info(int fd, __u32 device_id, void *data,
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size_t data_len, uint32_t *capabilities)
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{
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struct iommu_test_hw_info *info = (struct iommu_test_hw_info *)data;
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struct iommu_hw_info cmd = {
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@ -544,6 +544,7 @@ static int _test_cmd_get_hw_info(int fd, __u32 device_id,
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.dev_id = device_id,
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.data_len = data_len,
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.data_uptr = (uint64_t)data,
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.out_capabilities = 0,
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};
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int ret;
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@ -580,14 +581,19 @@ static int _test_cmd_get_hw_info(int fd, __u32 device_id,
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assert(!info->flags);
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}
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if (capabilities)
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*capabilities = cmd.out_capabilities;
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return 0;
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}
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#define test_cmd_get_hw_info(device_id, data, data_len) \
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ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id, \
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data, data_len))
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#define test_cmd_get_hw_info(device_id, data, data_len) \
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ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id, data, \
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data_len, NULL))
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#define test_err_get_hw_info(_errno, device_id, data, data_len) \
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EXPECT_ERRNO(_errno, \
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_test_cmd_get_hw_info(self->fd, device_id, \
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data, data_len))
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#define test_err_get_hw_info(_errno, device_id, data, data_len) \
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EXPECT_ERRNO(_errno, _test_cmd_get_hw_info(self->fd, device_id, data, \
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data_len, NULL))
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#define test_cmd_get_hw_capabilities(device_id, caps, mask) \
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ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id, NULL, 0, &caps))
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