include/uapi/drm/tegra_drm.h

File Facts

System

Linux kernel

Corpus path

include/uapi/drm/tegra_drm.h

Extension

.h

Size

22126 bytes

Lines

1077

Domain

Repository Root And Misc

Bucket

include

Inferred role

Repository Root And Misc: implementation source

Status

source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

• Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• drm.h

Detected Declarations

• struct drm_tegra_gem_create
• struct drm_tegra_gem_mmap
• struct drm_tegra_syncpt_read
• struct drm_tegra_syncpt_incr
• struct drm_tegra_syncpt_wait
• struct drm_tegra_open_channel
• struct drm_tegra_close_channel
• struct drm_tegra_get_syncpt
• struct drm_tegra_get_syncpt_base
• struct drm_tegra_syncpt
• struct drm_tegra_cmdbuf
• struct drm_tegra_reloc
• struct drm_tegra_waitchk
• struct drm_tegra_submit
• struct drm_tegra_gem_set_tiling
• struct drm_tegra_gem_get_tiling
• struct drm_tegra_gem_set_flags
• struct drm_tegra_gem_get_flags
• struct drm_tegra_channel_open
• struct drm_tegra_channel_close
• struct drm_tegra_channel_map
• struct drm_tegra_channel_unmap
• struct drm_tegra_submit_buf
• struct drm_tegra_submit_cmd_gather_uptr
• struct drm_tegra_submit_cmd_wait_syncpt
• struct drm_tegra_submit_cmd
• struct drm_tegra_submit_syncpt
• struct drm_tegra_channel_submit
• struct drm_tegra_syncpoint_allocate
• struct drm_tegra_syncpoint_free
• struct drm_tegra_syncpoint_wait

Annotated Snippet

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:

Annotation

• Immediate include surface: `drm.h`.
• Detected declarations: `struct drm_tegra_gem_create`, `struct drm_tegra_gem_mmap`, `struct drm_tegra_syncpt_read`, `struct drm_tegra_syncpt_incr`, `struct drm_tegra_syncpt_wait`, `struct drm_tegra_open_channel`, `struct drm_tegra_close_channel`, `struct drm_tegra_get_syncpt`, `struct drm_tegra_get_syncpt_base`, `struct drm_tegra_syncpt`.
• Atlas domain: Repository Root And Misc / include.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.