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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2021 Intel Corporation
*/
#ifndef _I915_DRM_LOCAL_H_
#define _I915_DRM_LOCAL_H_
#if defined(__cplusplus)
extern "C" {
#endif
/*
* It is necessary on occasion to add uapi declarations to IGT before they
* appear in imported kernel uapi headers. This header is provided for this
* purpose.
* Early uapi declarations should be added here exactly as they are
* expected to appear in the kernel uapi headers, i.e. without the LOCAL_
* or local_ prefix and without any #ifndef's. Attempt should be made to
* clean these up when kernel uapi headers are sync'd.
*/
#define I915_ENGINE_CLASS_COMPUTE 4
#define DRM_I915_QUERY_GEOMETRY_SUBSLICES 6
/*
* Signal to the kernel that the object will need to be accessed via
* the CPU.
*
* Only valid when placing objects in I915_MEMORY_CLASS_DEVICE, and only
* strictly required on platforms where only some of the device memory
* is directly visible or mappable through the CPU, like on DG2+.
*
* One of the placements MUST also be I915_MEMORY_CLASS_SYSTEM, to
* ensure we can always spill the allocation to system memory, if we
* can't place the object in the mappable part of
* I915_MEMORY_CLASS_DEVICE.
*
* Without this hint, the kernel will assume that non-mappable
* I915_MEMORY_CLASS_DEVICE is preferred for this object. Note that the
* kernel can still migrate the object to the mappable part, as a last
* resort, if userspace ever CPU faults this object, but this might be
* expensive, and so ideally should be avoided.
*/
#define I915_GEM_CREATE_EXT_FLAG_NEEDS_CPU_ACCESS (1 << 0)
#if defined(__cplusplus)
}
#endif
#endif /* _I915_DRM_LOCAL_H_ */
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