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/* SPDX-License-Identifier: MIT *//* Copyright (c) 2012-2020 NVIDIA Corporation */ #ifndef _UAPI_TEGRA_DRM_H_#define _UAPI_TEGRA_DRM_H_ #include "drm.h" #if defined(__cplusplus)extern "C" {#endif /* Tegra DRM legacy UAPI. Only enabled with STAGING */ #define DRM_TEGRA_GEM_CREATE_TILED     (1 << 0)#define DRM_TEGRA_GEM_CREATE_BOTTOM_UP (1 << 1) /** * struct drm_tegra_gem_create - parameters for the GEM object creation IOCTL */struct drm_tegra_gem_create {	/**	 * @size:	 *	 * The size, in bytes, of the buffer object to be created.	 */	__u64 size; 	/**	 * @flags:	 *	 * A bitmask of flags that influence the creation of GEM objects:	 *	 * DRM_TEGRA_GEM_CREATE_TILED	 *   Use the 16x16 tiling format for this buffer.	 *	 * DRM_TEGRA_GEM_CREATE_BOTTOM_UP	 *   The buffer has a bottom-up layout.	 */	__u32 flags; 	/**	 * @handle:	 *	 * The handle of the created GEM object. Set by the kernel upon	 * successful completion of the IOCTL.	 */	__u32 handle;}; /** * struct drm_tegra_gem_mmap - parameters for the GEM mmap IOCTL */struct drm_tegra_gem_mmap {	/**	 * @handle:	 *	 * Handle of the GEM object to obtain an mmap offset for.	 */	__u32 handle; 	/**	 * @pad:	 *	 * Structure padding that may be used in the future. Must be 0.	 */	__u32 pad; 	/**	 * @offset:	 *	 * The mmap offset for the given GEM object. Set by the kernel upon	 * successful completion of the IOCTL.	 */	__u64 offset;}; /** * struct drm_tegra_syncpt_read - parameters for the read syncpoint IOCTL */struct drm_tegra_syncpt_read {	/**	 * @id:	 *	 * ID of the syncpoint to read the current value from.	 */	__u32 id; 	/**	 * @value:	 *	 * The current syncpoint value. Set by the kernel upon successful	 * completion of the IOCTL.	 */	__u32 value;}; /** * struct drm_tegra_syncpt_incr - parameters for the increment syncpoint IOCTL */struct drm_tegra_syncpt_incr {	/**	 * @id:	 *	 * ID of the syncpoint to increment.	 */	__u32 id; 	/**	 * @pad:	 *	 * Structure padding that may be used in the future. Must be 0.	 */	__u32 pad;}; /** * struct drm_tegra_syncpt_wait - parameters for the wait syncpoint IOCTL */struct drm_tegra_syncpt_wait {	/**	 * @id:	 *	 * ID of the syncpoint to wait on.	 */	__u32 id; 	/**	 * @thresh:	 *	 * Threshold value for which to wait.	 */	__u32 thresh; 	/**	 * @timeout:	 *	 * Timeout, in milliseconds, to wait.	 */	__u32 timeout; 	/**	 * @value:	 *	 * The new syncpoint value after the wait. Set by the kernel upon	 * successful completion of the IOCTL.	 */	__u32 value;}; #define DRM_TEGRA_NO_TIMEOUT	(0xffffffff) /** * struct drm_tegra_open_channel - parameters for the open channel IOCTL */struct drm_tegra_open_channel {	/**	 * @client:	 *	 * The client ID for this channel.	 */	__u32 client; 	/**	 * @pad:	 *	 * Structure padding that may be used in the future. Must be 0.	 */	__u32 pad; 	/**	 * @context:	 *	 * The application context of this channel. Set by the kernel upon	 * successful completion of the IOCTL. This context needs to be passed	 * to the DRM_TEGRA_CHANNEL_CLOSE or the DRM_TEGRA_SUBMIT IOCTLs.	 */	__u64 context;}; /** * struct drm_tegra_close_channel - parameters for the close channel IOCTL */struct drm_tegra_close_channel {	/**	 * @context:	 *	 * The application context of this channel. This is obtained from the	 * DRM_TEGRA_OPEN_CHANNEL IOCTL.	 */	__u64 context;}; /** * struct drm_tegra_get_syncpt - parameters for the get syncpoint IOCTL */struct drm_tegra_get_syncpt {	/**	 * @context:	 *	 * The application context identifying the channel for which to obtain	 * the syncpoint ID.	 */	__u64 context; 	/**	 * @index:	 *	 * Index of the client syncpoint for which to obtain the ID.	 */	__u32 index; 	/**	 * @id:	 *	 * The ID of the given syncpoint. Set by the kernel upon successful	 * completion of the IOCTL.	 */	__u32 id;}; /** * struct drm_tegra_get_syncpt_base - parameters for the get wait base IOCTL */struct drm_tegra_get_syncpt_base {	/**	 * @context:	 *	 * The application context identifying for which channel to obtain the	 * wait base.	 */	__u64 context; 	/**	 * @syncpt:	 *	 * ID of the syncpoint for which to obtain the wait base.	 */	__u32 syncpt; 	/**	 * @id:	 *	 * The ID of the wait base corresponding to the client syncpoint. Set	 * by the kernel upon successful completion of the IOCTL.	 */	__u32 id;}; /** * struct drm_tegra_syncpt - syncpoint increment operation */struct drm_tegra_syncpt {	/**	 * @id:	 *	 * ID of the syncpoint to operate on.	 */	__u32 id; 	/**	 * @incrs:	 *	 * Number of increments to perform for the syncpoint.	 */	__u32 incrs;}; /** * struct drm_tegra_cmdbuf - structure describing a command buffer */struct drm_tegra_cmdbuf {	/**	 * @handle:	 *	 * Handle to a GEM object containing the command buffer.	 */	__u32 handle; 	/**	 * @offset:	 *	 * Offset, in bytes, into the GEM object identified by @handle at	 * which the command buffer starts.	 */	__u32 offset; 	/**	 * @words:	 *	 * Number of 32-bit words in this command buffer.	 */	__u32 words; 	/**	 * @pad:	 *	 * Structure padding that may be used in the future. Must be 0.	 */	__u32 pad;}; /** * struct drm_tegra_reloc - GEM object relocation structure */struct drm_tegra_reloc {	/** @cmdbuf: cmd information */	struct {		/**		 * @cmdbuf.handle:		 *		 * Handle to the GEM object containing the command buffer for		 * which to perform this GEM object relocation.		 */		__u32 handle; 		/**		 * @cmdbuf.offset:		 *		 * Offset, in bytes, into the command buffer at which to		 * insert the relocated address.		 */		__u32 offset;	} cmdbuf;	/** @target: relocate target information */	struct {		/**		 * @target.handle:		 *		 * Handle to the GEM object to be relocated.		 */		__u32 handle; 		/**		 * @target.offset:		 *		 * Offset, in bytes, into the target GEM object at which the		 * relocated data starts.		 */		__u32 offset;	} target; 	/**	 * @shift:	 *	 * The number of bits by which to shift relocated addresses.	 */	__u32 shift; 	/**	 * @pad:	 *	 * Structure padding that may be used in the future. Must be 0.	 */	__u32 pad;}; /** * struct drm_tegra_waitchk - wait check structure */struct drm_tegra_waitchk {	/**	 * @handle:	 *	 * Handle to the GEM object containing a command stream on which to	 * perform the wait check.	 */	__u32 handle; 	/**	 * @offset:	 *	 * Offset, in bytes, of the location in the command stream to perform	 * the wait check on.	 */	__u32 offset; 	/**	 * @syncpt:	 *	 * ID of the syncpoint to wait check.	 */	__u32 syncpt; 	/**	 * @thresh:	 *	 * Threshold value for which to check.	 */	__u32 thresh;}; /** * struct drm_tegra_submit - job submission structure */struct drm_tegra_submit {	/**	 * @context:	 *	 * The application context identifying the channel to use for the	 * execution of this job.	 */	__u64 context; 	/**	 * @num_syncpts:	 *	 * The number of syncpoints operated on by this job. This defines the	 * length of the array pointed to by @syncpts.	 */	__u32 num_syncpts; 	/**	 * @num_cmdbufs:	 *	 * The number of command buffers to execute as part of this job. This	 * defines the length of the array pointed to by @cmdbufs.	 */	__u32 num_cmdbufs; 	/**	 * @num_relocs:	 *	 * The number of relocations to perform before executing this job.	 * This defines the length of the array pointed to by @relocs.	 */	__u32 num_relocs; 	/**	 * @num_waitchks:	 *	 * The number of wait checks to perform as part of this job. This	 * defines the length of the array pointed to by @waitchks.	 */	__u32 num_waitchks; 	/**	 * @waitchk_mask:	 *	 * Bitmask of valid wait checks.	 */	__u32 waitchk_mask; 	/**	 * @timeout:	 *	 * Timeout, in milliseconds, before this job is cancelled.	 */	__u32 timeout; 	/**	 * @syncpts:	 *	 * A pointer to an array of &struct drm_tegra_syncpt structures that	 * specify the syncpoint operations performed as part of this job.	 * The number of elements in the array must be equal to the value	 * given by @num_syncpts.	 */	__u64 syncpts; 	/**	 * @cmdbufs:	 *	 * A pointer to an array of &struct drm_tegra_cmdbuf structures that	 * define the command buffers to execute as part of this job. The	 * number of elements in the array must be equal to the value given	 * by @num_syncpts.	 */	__u64 cmdbufs; 	/**	 * @relocs:	 *	 * A pointer to an array of &struct drm_tegra_reloc structures that	 * specify the relocations that need to be performed before executing	 * this job. The number of elements in the array must be equal to the	 * value given by @num_relocs.	 */	__u64 relocs; 	/**	 * @waitchks:	 *	 * A pointer to an array of &struct drm_tegra_waitchk structures that	 * specify the wait checks to be performed while executing this job.	 * The number of elements in the array must be equal to the value	 * given by @num_waitchks.	 */	__u64 waitchks; 	/**	 * @fence:	 *	 * The threshold of the syncpoint associated with this job after it	 * has been completed. Set by the kernel upon successful completion of	 * the IOCTL. This can be used with the DRM_TEGRA_SYNCPT_WAIT IOCTL to	 * wait for this job to be finished.	 */	__u32 fence; 

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