xenocara/lib/mesa/include/drm-uapi/xe_drm.h

/*
 * Copyright 2021 Intel Corporation. All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#ifndef _UAPI_XE_DRM_H_
#define _UAPI_XE_DRM_H_

#include "drm.h"

#if defined(__cplusplus)
extern "C" {
#endif

/* Please note that modifications to all structs defined here are
 * subject to backwards-compatibility constraints.
 */

/**
 * struct xe_user_extension - Base class for defining a chain of extensions
 *
 * Many interfaces need to grow over time. In most cases we can simply
 * extend the struct and have userspace pass in more data. Another option,
 * as demonstrated by Vulkan's approach to providing extensions for forward
 * and backward compatibility, is to use a list of optional structs to
 * provide those extra details.
 *
 * The key advantage to using an extension chain is that it allows us to
 * redefine the interface more easily than an ever growing struct of
 * increasing complexity, and for large parts of that interface to be
 * entirely optional. The downside is more pointer chasing; chasing across
 * the __user boundary with pointers encapsulated inside u64.
 *
 * Example chaining:
 *
 * .. code-block:: C
 *
 *	struct xe_user_extension ext3 {
 *		.next_extension = 0, // end
 *		.name = ...,
 *	};
 *	struct xe_user_extension ext2 {
 *		.next_extension = (uintptr_t)&ext3,
 *		.name = ...,
 *	};
 *	struct xe_user_extension ext1 {
 *		.next_extension = (uintptr_t)&ext2,
 *		.name = ...,
 *	};
 *
 * Typically the struct xe_user_extension would be embedded in some uAPI
 * struct, and in this case we would feed it the head of the chain(i.e ext1),
 * which would then apply all of the above extensions.
 *
 */
struct xe_user_extension {
	/**
	 * @next_extension:
	 *
	 * Pointer to the next struct xe_user_extension, or zero if the end.
	 */
	__u64 next_extension;
	/**
	 * @name: Name of the extension.
	 *
	 * Note that the name here is just some integer.
	 *
	 * Also note that the name space for this is not global for the whole
	 * driver, but rather its scope/meaning is limited to the specific piece
	 * of uAPI which has embedded the struct xe_user_extension.
	 */
	__u32 name;
	/**
	 * @flags: MBZ
	 *
	 * All undefined bits must be zero.
	 */
	__u32 pad;
};

/*
 * xe specific ioctls.
 *
 * The device specific ioctl range is [DRM_COMMAND_BASE, DRM_COMMAND_END) ie
 * [0x40, 0xa0) (a0 is excluded). The numbers below are defined as offset
 * against DRM_COMMAND_BASE and should be between [0x0, 0x60).
 */
#define DRM_XE_DEVICE_QUERY		0x00
#define DRM_XE_GEM_CREATE		0x01
#define DRM_XE_GEM_MMAP_OFFSET		0x02
#define DRM_XE_VM_CREATE		0x03
#define DRM_XE_VM_DESTROY		0x04
#define DRM_XE_VM_BIND			0x05
#define DRM_XE_ENGINE_CREATE		0x06
#define DRM_XE_ENGINE_DESTROY		0x07
#define DRM_XE_EXEC			0x08
#define DRM_XE_MMIO			0x09
#define DRM_XE_ENGINE_SET_PROPERTY	0x0a
#define DRM_XE_WAIT_USER_FENCE		0x0b
#define DRM_XE_VM_MADVISE		0x0c
#define DRM_XE_ENGINE_GET_PROPERTY	0x0d

/* Must be kept compact -- no holes */
#define DRM_IOCTL_XE_DEVICE_QUERY		DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_DEVICE_QUERY, struct drm_xe_device_query)
#define DRM_IOCTL_XE_GEM_CREATE			DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_GEM_CREATE, struct drm_xe_gem_create)
#define DRM_IOCTL_XE_GEM_MMAP_OFFSET		DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_GEM_MMAP_OFFSET, struct drm_xe_gem_mmap_offset)
#define DRM_IOCTL_XE_VM_CREATE			DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_VM_CREATE, struct drm_xe_vm_create)
#define DRM_IOCTL_XE_VM_DESTROY			DRM_IOW( DRM_COMMAND_BASE + DRM_XE_VM_DESTROY, struct drm_xe_vm_destroy)
#define DRM_IOCTL_XE_VM_BIND			DRM_IOW( DRM_COMMAND_BASE + DRM_XE_VM_BIND, struct drm_xe_vm_bind)
#define DRM_IOCTL_XE_ENGINE_CREATE		DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_ENGINE_CREATE, struct drm_xe_engine_create)
#define DRM_IOCTL_XE_ENGINE_GET_PROPERTY	DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_ENGINE_GET_PROPERTY, struct drm_xe_engine_get_property)
#define DRM_IOCTL_XE_ENGINE_DESTROY		DRM_IOW( DRM_COMMAND_BASE + DRM_XE_ENGINE_DESTROY, struct drm_xe_engine_destroy)
#define DRM_IOCTL_XE_EXEC			DRM_IOW( DRM_COMMAND_BASE + DRM_XE_EXEC, struct drm_xe_exec)
#define DRM_IOCTL_XE_MMIO			DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_MMIO, struct drm_xe_mmio)
#define DRM_IOCTL_XE_ENGINE_SET_PROPERTY	DRM_IOW( DRM_COMMAND_BASE + DRM_XE_ENGINE_SET_PROPERTY, struct drm_xe_engine_set_property)
#define DRM_IOCTL_XE_WAIT_USER_FENCE		DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_WAIT_USER_FENCE, struct drm_xe_wait_user_fence)
#define DRM_IOCTL_XE_VM_MADVISE			DRM_IOW( DRM_COMMAND_BASE + DRM_XE_VM_MADVISE, struct drm_xe_vm_madvise)

struct drm_xe_engine_class_instance {
	__u16 engine_class;

#define DRM_XE_ENGINE_CLASS_RENDER		0
#define DRM_XE_ENGINE_CLASS_COPY		1
#define DRM_XE_ENGINE_CLASS_VIDEO_DECODE	2
#define DRM_XE_ENGINE_CLASS_VIDEO_ENHANCE	3
#define DRM_XE_ENGINE_CLASS_COMPUTE		4
	/*
	 * Kernel only class (not actual hardware engine class). Used for
	 * creating ordered queues of VM bind operations.
	 */
#define DRM_XE_ENGINE_CLASS_VM_BIND		5

	__u16 engine_instance;
	__u16 gt_id;
};

#define XE_MEM_REGION_CLASS_SYSMEM	0
#define XE_MEM_REGION_CLASS_VRAM	1

struct drm_xe_query_mem_usage {
	__u32 num_regions;
	__u32 pad;

	struct drm_xe_query_mem_region {
		__u16 mem_class;
		__u16 instance;	/* unique ID even among different classes */
		__u32 pad;
		__u32 min_page_size;
		__u32 max_page_size;
		__u64 total_size;
		__u64 used;
		__u64 reserved[8];
	} regions[];
};

struct drm_xe_query_config {
	__u32 num_params;
	__u32 pad;
#define XE_QUERY_CONFIG_REV_AND_DEVICE_ID	0
#define XE_QUERY_CONFIG_FLAGS			1
	#define XE_QUERY_CONFIG_FLAGS_HAS_VRAM		(0x1 << 0)
	#define XE_QUERY_CONFIG_FLAGS_USE_GUC		(0x1 << 1)
#define XE_QUERY_CONFIG_MIN_ALIGNEMENT		2
#define XE_QUERY_CONFIG_VA_BITS			3
#define XE_QUERY_CONFIG_GT_COUNT		4
#define XE_QUERY_CONFIG_MEM_REGION_COUNT	5
#define XE_QUERY_CONFIG_MAX_ENGINE_PRIORITY	6
#define XE_QUERY_CONFIG_NUM_PARAM		XE_QUERY_CONFIG_MAX_ENGINE_PRIORITY + 1
	__u64 info[];
};

struct drm_xe_query_gts {
	__u32 num_gt;
	__u32 pad;

	/*
	 * TODO: Perhaps info about every mem region relative to this GT? e.g.
	 * bandwidth between this GT and remote region?
	 */

	struct drm_xe_query_gt {
#define XE_QUERY_GT_TYPE_MAIN		0
#define XE_QUERY_GT_TYPE_REMOTE		1
#define XE_QUERY_GT_TYPE_MEDIA		2
		__u16 type;
		__u16 instance;
		__u32 clock_freq;
		__u64 features;
		__u64 native_mem_regions;	/* bit mask of instances from drm_xe_query_mem_usage */
		__u64 slow_mem_regions;		/* bit mask of instances from drm_xe_query_mem_usage */
		__u64 inaccessible_mem_regions;	/* bit mask of instances from drm_xe_query_mem_usage */
		__u64 reserved[8];
	} gts[];
};

struct drm_xe_query_topology_mask {
	/** @gt_id: GT ID the mask is associated with */
	__u16 gt_id;

	/** @type: type of mask */
	__u16 type;
#define XE_TOPO_DSS_GEOMETRY	(1 << 0)
#define XE_TOPO_DSS_COMPUTE	(1 << 1)
#define XE_TOPO_EU_PER_DSS	(1 << 2)

	/** @num_bytes: number of bytes in requested mask */
	__u32 num_bytes;

	/** @mask: little-endian mask of @num_bytes */
	__u8 mask[];
};

struct drm_xe_device_query {
	/** @extensions: Pointer to the first extension struct, if any */
	__u64 extensions;

	/** @query: The type of data to query */
	__u32 query;

#define DRM_XE_DEVICE_QUERY_ENGINES	0
#define DRM_XE_DEVICE_QUERY_MEM_USAGE	1
#define DRM_XE_DEVICE_QUERY_CONFIG	2
#define DRM_XE_DEVICE_QUERY_GTS		3
#define DRM_XE_DEVICE_QUERY_HWCONFIG	4
#define DRM_XE_DEVICE_QUERY_GT_TOPOLOGY	5

	/** @size: Size of the queried data */
	__u32 size;

	/** @data: Queried data is placed here */
	__u64 data;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_gem_create {
	/** @extensions: Pointer to the first extension struct, if any */
	__u64 extensions;

	/**
	 * @size: Requested size for the object
	 *
	 * The (page-aligned) allocated size for the object will be returned.
	 */
	__u64 size;

	/**
	 * @flags: Flags, currently a mask of memory instances of where BO can
	 * be placed
	 */
#define XE_GEM_CREATE_FLAG_DEFER_BACKING	(0x1 << 24)
#define XE_GEM_CREATE_FLAG_SCANOUT		(0x1 << 25)
	__u32 flags;

	/**
	 * @vm_id: Attached VM, if any
	 *
	 * If a VM is specified, this BO must:
	 *
	 *  1. Only ever be bound to that VM.
	 *
	 *  2. Cannot be exported as a PRIME fd.
	 */
	__u32 vm_id;

	/**
	 * @handle: Returned handle for the object.
	 *
	 * Object handles are nonzero.
	 */
	__u32 handle;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_gem_mmap_offset {
	/** @extensions: Pointer to the first extension struct, if any */
	__u64 extensions;

	/** @handle: Handle for the object being mapped. */
	__u32 handle;

	/** @flags: Must be zero */
	__u32 flags;

	/** @offset: The fake offset to use for subsequent mmap call */
	__u64 offset;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

/**
 * struct drm_xe_vm_bind_op_error_capture - format of VM bind op error capture
 */
struct drm_xe_vm_bind_op_error_capture {
	/** @error: errno that occured */
	__s32 error;
	/** @op: operation that encounter an error */
	__u32 op;
	/** @addr: address of bind op */
	__u64 addr;
	/** @size: size of bind */
	__u64 size;
};

/** struct drm_xe_ext_vm_set_property - VM set property extension */
struct drm_xe_ext_vm_set_property {
	/** @base: base user extension */
	struct xe_user_extension base;

	/** @property: property to set */
#define XE_VM_PROPERTY_BIND_OP_ERROR_CAPTURE_ADDRESS		0
	__u32 property;

	/** @value: property value */
	__u64 value;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_vm_create {
	/** @extensions: Pointer to the first extension struct, if any */
#define XE_VM_EXTENSION_SET_PROPERTY	0
	__u64 extensions;

	/** @flags: Flags */
	__u32 flags;

#define DRM_XE_VM_CREATE_SCRATCH_PAGE	(0x1 << 0)
#define DRM_XE_VM_CREATE_COMPUTE_MODE	(0x1 << 1)
#define DRM_XE_VM_CREATE_ASYNC_BIND_OPS	(0x1 << 2)
#define DRM_XE_VM_CREATE_FAULT_MODE	(0x1 << 3)

	/** @vm_id: Returned VM ID */
	__u32 vm_id;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_vm_destroy {
	/** @vm_id: VM ID */
	__u32 vm_id;

	/** @pad: MBZ */
	__u32 pad;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_vm_bind_op {
	/**
	 * @obj: GEM object to operate on, MBZ for MAP_USERPTR, MBZ for UNMAP
	 */
	__u32 obj;

	union {
		/**
		 * @obj_offset: Offset into the object, MBZ for CLEAR_RANGE,
		 * ignored for unbind
		 */
		__u64 obj_offset;
		/** @userptr: user pointer to bind on */
		__u64 userptr;
	};

	/**
	 * @range: Number of bytes from the object to bind to addr, MBZ for UNMAP_ALL
	 */
	__u64 range;

	/** @addr: Address to operate on, MBZ for UNMAP_ALL */
	__u64 addr;

	/**
	 * @gt_mask: Mask for which GTs to create binds for, 0 == All GTs,
	 * only applies to creating new VMAs
	 */
	__u64 gt_mask;

	/** @op: Operation to perform (lower 16 bits) and flags (upper 16 bits) */
	__u32 op;

	/** @mem_region: Memory region to prefetch VMA to, instance not a mask */
	__u32 region;

#define XE_VM_BIND_OP_MAP		0x0
#define XE_VM_BIND_OP_UNMAP		0x1
#define XE_VM_BIND_OP_MAP_USERPTR	0x2
#define XE_VM_BIND_OP_RESTART		0x3
#define XE_VM_BIND_OP_UNMAP_ALL		0x4
#define XE_VM_BIND_OP_PREFETCH		0x5

#define XE_VM_BIND_FLAG_READONLY	(0x1 << 16)
	/*
	 * A bind ops completions are always async, hence the support for out
	 * sync. This flag indicates the allocation of the memory for new page
	 * tables and the job to program the pages tables is asynchronous
	 * relative to the IOCTL. That part of a bind operation can fail under
	 * memory pressure, the job in practice can't fail unless the system is
	 * totally shot.
	 *
	 * If this flag is clear and the IOCTL doesn't return an error, in
	 * practice the bind op is good and will complete.
	 *
	 * If this flag is set and doesn't return return an error, the bind op
	 * can still fail and recovery is needed. If configured, the bind op that
	 * caused the error will be captured in drm_xe_vm_bind_op_error_capture.
	 * Once the user sees the error (via a ufence +
	 * XE_VM_PROPERTY_BIND_OP_ERROR_CAPTURE_ADDRESS), it should free memory
	 * via non-async unbinds, and then restart all queue'd async binds op via
	 * XE_VM_BIND_OP_RESTART. Or alternatively the user should destroy the
	 * VM.
	 *
	 * This flag is only allowed when DRM_XE_VM_CREATE_ASYNC_BIND_OPS is
	 * configured in the VM and must be set if the VM is configured with
	 * DRM_XE_VM_CREATE_ASYNC_BIND_OPS and not in an error state.
	 */
#define XE_VM_BIND_FLAG_ASYNC		(0x1 << 17)
	/*
	 * Valid on a faulting VM only, do the MAP operation immediately rather
	 * than differing the MAP to the page fault handler.
	 */
#define XE_VM_BIND_FLAG_IMMEDIATE	(0x1 << 18)

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_vm_bind {
	/** @extensions: Pointer to the first extension struct, if any */
	__u64 extensions;

	/** @vm_id: The ID of the VM to bind to */
	__u32 vm_id;

	/**
	 * @engine_id: engine_id, must be of class DRM_XE_ENGINE_CLASS_VM_BIND
	 * and engine must have same vm_id. If zero, the default VM bind engine
	 * is used.
	 */
	__u32 engine_id;

	/** @num_binds: number of binds in this IOCTL */
	__u32 num_binds;

	union {
		/** @bind: used if num_binds == 1 */
		struct drm_xe_vm_bind_op bind;
		/**
		 * @vector_of_binds: userptr to array of struct
		 * drm_xe_vm_bind_op if num_binds > 1
		 */
		__u64 vector_of_binds;
	};

	/** @num_syncs: amount of syncs to wait on */
	__u32 num_syncs;

	/** @syncs: pointer to struct drm_xe_sync array */
	__u64 syncs;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

/** struct drm_xe_ext_engine_set_property - engine set property extension */
struct drm_xe_ext_engine_set_property {
	/** @base: base user extension */
	struct xe_user_extension base;

	/** @property: property to set */
	__u32 property;

	/** @value: property value */
	__u64 value;
};

/**
 * struct drm_xe_engine_set_property - engine set property
 *
 * Same namespace for extensions as drm_xe_engine_create
 */
struct drm_xe_engine_set_property {
	/** @extensions: Pointer to the first extension struct, if any */
	__u64 extensions;

	/** @engine_id: Engine ID */
	__u32 engine_id;

	/** @property: property to set */
#define XE_ENGINE_SET_PROPERTY_PRIORITY			0
#define XE_ENGINE_SET_PROPERTY_TIMESLICE		1
#define XE_ENGINE_SET_PROPERTY_PREEMPTION_TIMEOUT	2
	/*
	 * Long running or ULLS engine mode. DMA fences not allowed in this
	 * mode. Must match the value of DRM_XE_VM_CREATE_COMPUTE_MODE, serves
	 * as a sanity check the UMD knows what it is doing. Can only be set at
	 * engine create time.
	 */
#define XE_ENGINE_SET_PROPERTY_COMPUTE_MODE		3
#define XE_ENGINE_SET_PROPERTY_PERSISTENCE		4
#define XE_ENGINE_SET_PROPERTY_JOB_TIMEOUT		5
#define XE_ENGINE_SET_PROPERTY_ACC_TRIGGER		6
#define XE_ENGINE_SET_PROPERTY_ACC_NOTIFY		7
#define XE_ENGINE_SET_PROPERTY_ACC_GRANULARITY		8
	__u32 property;

	/** @value: property value */
	__u64 value;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_engine_create {
	/** @extensions: Pointer to the first extension struct, if any */
#define XE_ENGINE_EXTENSION_SET_PROPERTY               0
	__u64 extensions;

	/** @width: submission width (number BB per exec) for this engine */
	__u16 width;

	/** @num_placements: number of valid placements for this engine */
	__u16 num_placements;

	/** @vm_id: VM to use for this engine */
	__u32 vm_id;

	/** @flags: MBZ */
	__u32 flags;

	/** @engine_id: Returned engine ID */
	__u32 engine_id;

	/**
	 * @instances: user pointer to a 2-d array of struct
	 * drm_xe_engine_class_instance
	 *
	 * length = width (i) * num_placements (j)
	 * index = j + i * width
	 */
	__u64 instances;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_engine_get_property {
	/** @extensions: Pointer to the first extension struct, if any */
	__u64 extensions;

	/** @engine_id: Engine ID */
	__u32 engine_id;

	/** @property: property to get */
#define XE_ENGINE_GET_PROPERTY_BAN			0
	__u32 property;

	/** @value: property value */
	__u64 value;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_engine_destroy {
	/** @engine_id: Engine ID */
	__u32 engine_id;

	/** @pad: MBZ */
	__u32 pad;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_sync {
	/** @extensions: Pointer to the first extension struct, if any */
	__u64 extensions;

	__u32 flags;

#define DRM_XE_SYNC_SYNCOBJ		0x0
#define DRM_XE_SYNC_TIMELINE_SYNCOBJ	0x1
#define DRM_XE_SYNC_DMA_BUF		0x2
#define DRM_XE_SYNC_USER_FENCE		0x3
#define DRM_XE_SYNC_SIGNAL		0x10

	union {
		__u32 handle;
		/**
		 * @addr: Address of user fence. When sync passed in via exec
		 * IOCTL this a GPU address in the VM. When sync passed in via
		 * VM bind IOCTL this is a user pointer. In either case, it is
		 * the users responsibility that this address is present and
		 * mapped when the user fence is signalled. Must be qword
		 * aligned.
		 */
		__u64 addr;
	};

	__u64 timeline_value;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_exec {
	/** @extensions: Pointer to the first extension struct, if any */
	__u64 extensions;

	/** @vm_id: VM ID to run batch buffer in */
	__u32 engine_id;

	/** @num_syncs: Amount of struct drm_xe_sync in array. */
	__u32 num_syncs;

	/** @syncs: Pointer to struct drm_xe_sync array. */
	__u64 syncs;

	/**
	  * @address: address of batch buffer if num_batch_buffer == 1 or an
	  * array of batch buffer addresses
	  */
	__u64 address;

	/**
	 * @num_batch_buffer: number of batch buffer in this exec, must match
	 * the width of the engine
	 */
	__u16 num_batch_buffer;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_mmio {
	/** @extensions: Pointer to the first extension struct, if any */
	__u64 extensions;

	__u32 addr;

	__u32 flags;

#define DRM_XE_MMIO_8BIT	0x0
#define DRM_XE_MMIO_16BIT	0x1
#define DRM_XE_MMIO_32BIT	0x2
#define DRM_XE_MMIO_64BIT	0x3
#define DRM_XE_MMIO_BITS_MASK	0x3
#define DRM_XE_MMIO_READ	0x4
#define DRM_XE_MMIO_WRITE	0x8

	__u64 value;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

/**
 * struct drm_xe_wait_user_fence - wait user fence
 *
 * Wait on user fence, XE will wakeup on every HW engine interrupt in the
 * instances list and check if user fence is complete:
 * (*addr & MASK) OP (VALUE & MASK)
 *
 * Returns to user on user fence completion or timeout.
 */
struct drm_xe_wait_user_fence {
	/** @extensions: Pointer to the first extension struct, if any */
	__u64 extensions;
	union {
		/**
		 * @addr: user pointer address to wait on, must qword aligned
		 */
		__u64 addr;
		/**
		 * @vm_id: The ID of the VM which encounter an error used with
		 * DRM_XE_UFENCE_WAIT_VM_ERROR. Upper 32 bits must be clear.
		 */
		__u64 vm_id;
	};
	/** @op: wait operation (type of comparison) */
#define DRM_XE_UFENCE_WAIT_EQ	0
#define DRM_XE_UFENCE_WAIT_NEQ	1
#define DRM_XE_UFENCE_WAIT_GT	2
#define DRM_XE_UFENCE_WAIT_GTE	3
#define DRM_XE_UFENCE_WAIT_LT	4
#define DRM_XE_UFENCE_WAIT_LTE	5
	__u16 op;
	/** @flags: wait flags */
#define DRM_XE_UFENCE_WAIT_SOFT_OP	(1 << 0)	/* e.g. Wait on VM bind */
#define DRM_XE_UFENCE_WAIT_ABSTIME	(1 << 1)
#define DRM_XE_UFENCE_WAIT_VM_ERROR	(1 << 2)
	__u16 flags;
	/** @value: compare value */
	__u64 value;
	/** @mask: comparison mask */
#define DRM_XE_UFENCE_WAIT_U8		0xffu
#define DRM_XE_UFENCE_WAIT_U16		0xffffu
#define DRM_XE_UFENCE_WAIT_U32		0xffffffffu
#define DRM_XE_UFENCE_WAIT_U64		0xffffffffffffffffu
	__u64 mask;
	/** @timeout: how long to wait before bailing, value in jiffies */
	__s64 timeout;
	/**
	 * @num_engines: number of engine instances to wait on, must be zero
	 * when DRM_XE_UFENCE_WAIT_SOFT_OP set
	 */
	__u64 num_engines;
	/**
	 * @instances: user pointer to array of drm_xe_engine_class_instance to
	 * wait on, must be NULL when DRM_XE_UFENCE_WAIT_SOFT_OP set
	 */
	__u64 instances;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

struct drm_xe_vm_madvise {
	/** @extensions: Pointer to the first extension struct, if any */
	__u64 extensions;

	/** @vm_id: The ID VM in which the VMA exists */
	__u32 vm_id;

	/** @range: Number of bytes in the VMA */
	__u64 range;

	/** @addr: Address of the VMA to operation on */
	__u64 addr;

	/*
	 * Setting the preferred location will trigger a migrate of the VMA
	 * backing store to new location if the backing store is already
	 * allocated.
	 */
#define DRM_XE_VM_MADVISE_PREFERRED_MEM_CLASS	0
#define DRM_XE_VM_MADVISE_PREFERRED_GT		1
	/*
	 * In this case lower 32 bits are mem class, upper 32 are GT.
	 * Combination provides a single IOCTL plus migrate VMA to preferred
	 * location.
	 */
#define DRM_XE_VM_MADVISE_PREFERRED_MEM_CLASS_GT	2
	/*
	 * The CPU will do atomic memory operations to this VMA. Must be set on
	 * some devices for atomics to behave correctly.
	 */
#define DRM_XE_VM_MADVISE_CPU_ATOMIC		3
	/*
	 * The device will do atomic memory operations to this VMA. Must be set
	 * on some devices for atomics to behave correctly.
	 */
#define DRM_XE_VM_MADVISE_DEVICE_ATOMIC		4
	/*
	 * Priority WRT to eviction (moving from preferred memory location due
	 * to memory pressure). The lower the priority, the more likely to be
	 * evicted.
	 */
#define DRM_XE_VM_MADVISE_PRIORITY		5
#define		DRM_XE_VMA_PRIORITY_LOW		0
#define		DRM_XE_VMA_PRIORITY_NORMAL	1	/* Default */
#define		DRM_XE_VMA_PRIORITY_HIGH	2	/* Must be elevated user */
	/* Pin the VMA in memory, must be elevated user */
#define DRM_XE_VM_MADVISE_PIN			6

	/** @property: property to set */
	__u32 property;

	/** @value: property value */
	__u64 value;

	/** @reserved: Reserved */
	__u64 reserved[2];
};

#if defined(__cplusplus)
}
#endif

#endif /* _UAPI_XE_DRM_H_ */