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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES.
*/
#ifndef _UAPI_IOMMUFD_TEST_H
#define _UAPI_IOMMUFD_TEST_H
#include <linux/types.h>
#include <linux/iommufd.h>
enum {
IOMMU_TEST_OP_ADD_RESERVED = 1,
IOMMU_TEST_OP_MOCK_DOMAIN,
IOMMU_TEST_OP_MD_CHECK_MAP,
IOMMU_TEST_OP_MD_CHECK_REFS,
IOMMU_TEST_OP_CREATE_ACCESS,
IOMMU_TEST_OP_DESTROY_ACCESS_PAGES,
IOMMU_TEST_OP_ACCESS_PAGES,
IOMMU_TEST_OP_ACCESS_RW,
IOMMU_TEST_OP_SET_TEMP_MEMORY_LIMIT,
IOMMU_TEST_OP_MOCK_DOMAIN_REPLACE,
IOMMU_TEST_OP_ACCESS_REPLACE_IOAS,
IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS,
IOMMU_TEST_OP_DIRTY,
IOMMU_TEST_OP_MD_CHECK_IOTLB,
};
enum {
MOCK_APERTURE_START = 1UL << 24,
MOCK_APERTURE_LAST = (1UL << 31) - 1,
};
enum {
MOCK_FLAGS_ACCESS_WRITE = 1 << 0,
MOCK_FLAGS_ACCESS_SYZ = 1 << 16,
};
enum {
MOCK_ACCESS_RW_WRITE = 1 << 0,
MOCK_ACCESS_RW_SLOW_PATH = 1 << 2,
};
enum {
MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES = 1 << 0,
};
enum {
MOCK_FLAGS_DEVICE_NO_DIRTY = 1 << 0,
};
enum {
MOCK_NESTED_DOMAIN_IOTLB_ID_MAX = 3,
MOCK_NESTED_DOMAIN_IOTLB_NUM = 4,
};
struct iommu_test_cmd {
__u32 size;
__u32 op;
__u32 id;
__u32 __reserved;
union {
struct {
__aligned_u64 start;
__aligned_u64 length;
} add_reserved;
struct {
__u32 out_stdev_id;
__u32 out_hwpt_id;
/* out_idev_id is the standard iommufd_bind object */
__u32 out_idev_id;
} mock_domain;
struct {
__u32 out_stdev_id;
__u32 out_hwpt_id;
__u32 out_idev_id;
/* Expand mock_domain to set mock device flags */
__u32 dev_flags;
} mock_domain_flags;
struct {
__u32 pt_id;
} mock_domain_replace;
struct {
__aligned_u64 iova;
__aligned_u64 length;
__aligned_u64 uptr;
} check_map;
struct {
__aligned_u64 length;
__aligned_u64 uptr;
__u32 refs;
} check_refs;
struct {
__u32 out_access_fd;
__u32 flags;
} create_access;
struct {
__u32 access_pages_id;
} destroy_access_pages;
struct {
__u32 flags;
__u32 out_access_pages_id;
__aligned_u64 iova;
__aligned_u64 length;
__aligned_u64 uptr;
} access_pages;
struct {
__aligned_u64 iova;
__aligned_u64 length;
__aligned_u64 uptr;
__u32 flags;
} access_rw;
struct {
__u32 limit;
} memory_limit;
struct {
__u32 ioas_id;
} access_replace_ioas;
struct {
__u32 flags;
__aligned_u64 iova;
__aligned_u64 length;
__aligned_u64 page_size;
__aligned_u64 uptr;
__aligned_u64 out_nr_dirty;
} dirty;
struct {
__u32 id;
__u32 iotlb;
} check_iotlb;
};
__u32 last;
};
#define IOMMU_TEST_CMD _IO(IOMMUFD_TYPE, IOMMUFD_CMD_BASE + 32)
/* Mock structs for IOMMU_DEVICE_GET_HW_INFO ioctl */
#define IOMMU_HW_INFO_TYPE_SELFTEST 0xfeedbeef
#define IOMMU_HW_INFO_SELFTEST_REGVAL 0xdeadbeef
struct iommu_test_hw_info {
__u32 flags;
__u32 test_reg;
};
/* Should not be equal to any defined value in enum iommu_hwpt_data_type */
#define IOMMU_HWPT_DATA_SELFTEST 0xdead
#define IOMMU_TEST_IOTLB_DEFAULT 0xbadbeef
/**
* struct iommu_hwpt_selftest
*
* @iotlb: default mock iotlb value, IOMMU_TEST_IOTLB_DEFAULT
*/
struct iommu_hwpt_selftest {
__u32 iotlb;
};
/* Should not be equal to any defined value in enum iommu_hwpt_invalidate_data_type */
#define IOMMU_HWPT_INVALIDATE_DATA_SELFTEST 0xdeadbeef
#define IOMMU_HWPT_INVALIDATE_DATA_SELFTEST_INVALID 0xdadbeef
/**
* struct iommu_hwpt_invalidate_selftest - Invalidation data for Mock driver
* (IOMMU_HWPT_INVALIDATE_DATA_SELFTEST)
* @flags: Invalidate flags
* @iotlb_id: Invalidate iotlb entry index
*
* If IOMMU_TEST_INVALIDATE_ALL is set in @flags, @iotlb_id will be ignored
*/
struct iommu_hwpt_invalidate_selftest {
#define IOMMU_TEST_INVALIDATE_FLAG_ALL (1 << 0)
__u32 flags;
__u32 iotlb_id;
};
#endif
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