drm/xe: Introduce a new DRM driver for Intel GPUs

Xe, is a new driver for Intel GPUs that supports both integrated and
discrete platforms starting with Tiger Lake (first Intel Xe Architecture).

The code is at a stage where it is already functional and has experimental
support for multiple platforms starting from Tiger Lake, with initial
support implemented in Mesa (for Iris and Anv, our OpenGL and Vulkan
drivers), as well as in NEO (for OpenCL and Level0).

The new Xe driver leverages a lot from i915.

As for display, the intent is to share the display code with the i915
driver so that there is maximum reuse there. But it is not added
in this patch.

This initial work is a collaboration of many people and unfortunately
the big squashed patch won't fully honor the proper credits. But let's
get some git quick stats so we can at least try to preserve some of the
credits:

Co-developed-by: Matthew Brost <matthew.brost@intel.com>
Co-developed-by: Matthew Auld <matthew.auld@intel.com>
Co-developed-by: Matt Roper <matthew.d.roper@intel.com>
Co-developed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Co-developed-by: Francois Dugast <francois.dugast@intel.com>
Co-developed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Co-developed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Co-developed-by: Philippe Lecluse <philippe.lecluse@intel.com>
Co-developed-by: Nirmoy Das <nirmoy.das@intel.com>
Co-developed-by: Jani Nikula <jani.nikula@intel.com>
Co-developed-by: José Roberto de Souza <jose.souza@intel.com>
Co-developed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Co-developed-by: Dave Airlie <airlied@redhat.com>
Co-developed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Co-developed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Co-developed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>

1 files changed, 787 insertions, 0 deletions

diff --git a/include/uapi/drm/xe_drm.h b/include/uapi/drm/xe_drm.h
new file mode 100644
index 000000000000..f64b1c785fad
--- /dev/null
+++ b/include/uapi/drm/xe_drm.h
@@ -0,0 +1,787 @@
+/*
+ * 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 i915_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 i915_user_extension ext3 {
+ *		.next_extension = 0, // end
+ *		.name = ...,
+ *	};
+ *	struct i915_user_extension ext2 {
+ *		.next_extension = (uintptr_t)&ext3,
+ *		.name = ...,
+ *	};
+ *	struct i915_user_extension ext1 {
+ *		.next_extension = (uintptr_t)&ext2,
+ *		.name = ...,
+ *	};
+ *
+ * Typically the struct i915_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 i915_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 i915_user_extension.
+	 */
+	__u32 name;
+	/**
+	 * @flags: MBZ
+	 *
+	 * All undefined bits must be zero.
+	 */
+	__u32 pad;
+};
+
+/*
+ * i915 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
+
+/* 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_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_NUM_PARAM		XE_QUERY_CONFIG_MEM_REGION_COUNT + 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_PROPERTY_PRIORITY			0
+#define XE_ENGINE_PROPERTY_TIMESLICE			1
+#define XE_ENGINE_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_PROPERTY_COMPUTE_MODE			3
+#define XE_ENGINE_PROPERTY_PERSISTENCE			4
+#define XE_ENGINE_PROPERTY_JOB_TIMEOUT			5
+#define XE_ENGINE_PROPERTY_ACC_TRIGGER			6
+#define XE_ENGINE_PROPERTY_ACC_NOTIFY			7
+#define XE_ENGINE_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_destroy {
+	/** @vm_id: VM 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;
+
+	/** @engine_id: Engine ID for the batch buffer */
+	__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_ */