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-rw-r--r--include/uapi/drm/tegra_drm.h1060
1 files changed, 1060 insertions, 0 deletions
diff --git a/include/uapi/drm/tegra_drm.h b/include/uapi/drm/tegra_drm.h
new file mode 100644
index 000000000..94cfc306d
--- /dev/null
+++ b/include/uapi/drm/tegra_drm.h
@@ -0,0 +1,1060 @@
+/* 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 {
+ 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;
+ 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;
+
+ /**
+ * @reserved:
+ *
+ * This field is reserved for future use. Must be 0.
+ */
+ __u32 reserved[5];
+};
+
+#define DRM_TEGRA_GEM_TILING_MODE_PITCH 0
+#define DRM_TEGRA_GEM_TILING_MODE_TILED 1
+#define DRM_TEGRA_GEM_TILING_MODE_BLOCK 2
+
+/**
+ * struct drm_tegra_gem_set_tiling - parameters for the set tiling IOCTL
+ */
+struct drm_tegra_gem_set_tiling {
+ /**
+ * @handle:
+ *
+ * Handle to the GEM object for which to set the tiling parameters.
+ */
+ __u32 handle;
+
+ /**
+ * @mode:
+ *
+ * The tiling mode to set. Must be one of:
+ *
+ * DRM_TEGRA_GEM_TILING_MODE_PITCH
+ * pitch linear format
+ *
+ * DRM_TEGRA_GEM_TILING_MODE_TILED
+ * 16x16 tiling format
+ *
+ * DRM_TEGRA_GEM_TILING_MODE_BLOCK
+ * 16Bx2 tiling format
+ */
+ __u32 mode;
+
+ /**
+ * @value:
+ *
+ * The value to set for the tiling mode parameter.
+ */
+ __u32 value;
+
+ /**
+ * @pad:
+ *
+ * Structure padding that may be used in the future. Must be 0.
+ */
+ __u32 pad;
+};
+
+/**
+ * struct drm_tegra_gem_get_tiling - parameters for the get tiling IOCTL
+ */
+struct drm_tegra_gem_get_tiling {
+ /**
+ * @handle:
+ *
+ * Handle to the GEM object for which to query the tiling parameters.
+ */
+ __u32 handle;
+
+ /**
+ * @mode:
+ *
+ * The tiling mode currently associated with the GEM object. Set by
+ * the kernel upon successful completion of the IOCTL.
+ */
+ __u32 mode;
+
+ /**
+ * @value:
+ *
+ * The tiling mode parameter currently associated with the GEM object.
+ * Set by the kernel upon successful completion of the IOCTL.
+ */
+ __u32 value;
+
+ /**
+ * @pad:
+ *
+ * Structure padding that may be used in the future. Must be 0.
+ */
+ __u32 pad;
+};
+
+#define DRM_TEGRA_GEM_BOTTOM_UP (1 << 0)
+#define DRM_TEGRA_GEM_FLAGS (DRM_TEGRA_GEM_BOTTOM_UP)
+
+/**
+ * struct drm_tegra_gem_set_flags - parameters for the set flags IOCTL
+ */
+struct drm_tegra_gem_set_flags {
+ /**
+ * @handle:
+ *
+ * Handle to the GEM object for which to set the flags.
+ */
+ __u32 handle;
+
+ /**
+ * @flags:
+ *
+ * The flags to set for the GEM object.
+ */
+ __u32 flags;
+};
+
+/**
+ * struct drm_tegra_gem_get_flags - parameters for the get flags IOCTL
+ */
+struct drm_tegra_gem_get_flags {
+ /**
+ * @handle:
+ *
+ * Handle to the GEM object for which to query the flags.
+ */
+ __u32 handle;
+
+ /**
+ * @flags:
+ *
+ * The flags currently associated with the GEM object. Set by the
+ * kernel upon successful completion of the IOCTL.
+ */
+ __u32 flags;
+};
+
+#define DRM_TEGRA_GEM_CREATE 0x00
+#define DRM_TEGRA_GEM_MMAP 0x01
+#define DRM_TEGRA_SYNCPT_READ 0x02
+#define DRM_TEGRA_SYNCPT_INCR 0x03
+#define DRM_TEGRA_SYNCPT_WAIT 0x04
+#define DRM_TEGRA_OPEN_CHANNEL 0x05
+#define DRM_TEGRA_CLOSE_CHANNEL 0x06
+#define DRM_TEGRA_GET_SYNCPT 0x07
+#define DRM_TEGRA_SUBMIT 0x08
+#define DRM_TEGRA_GET_SYNCPT_BASE 0x09
+#define DRM_TEGRA_GEM_SET_TILING 0x0a
+#define DRM_TEGRA_GEM_GET_TILING 0x0b
+#define DRM_TEGRA_GEM_SET_FLAGS 0x0c
+#define DRM_TEGRA_GEM_GET_FLAGS 0x0d
+
+#define DRM_IOCTL_TEGRA_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_CREATE, struct drm_tegra_gem_create)
+#define DRM_IOCTL_TEGRA_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_MMAP, struct drm_tegra_gem_mmap)
+#define DRM_IOCTL_TEGRA_SYNCPT_READ DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_SYNCPT_READ, struct drm_tegra_syncpt_read)
+#define DRM_IOCTL_TEGRA_SYNCPT_INCR DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_SYNCPT_INCR, struct drm_tegra_syncpt_incr)
+#define DRM_IOCTL_TEGRA_SYNCPT_WAIT DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_SYNCPT_WAIT, struct drm_tegra_syncpt_wait)
+#define DRM_IOCTL_TEGRA_OPEN_CHANNEL DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_OPEN_CHANNEL, struct drm_tegra_open_channel)
+#define DRM_IOCTL_TEGRA_CLOSE_CHANNEL DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_CLOSE_CHANNEL, struct drm_tegra_close_channel)
+#define DRM_IOCTL_TEGRA_GET_SYNCPT DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GET_SYNCPT, struct drm_tegra_get_syncpt)
+#define DRM_IOCTL_TEGRA_SUBMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_SUBMIT, struct drm_tegra_submit)
+#define DRM_IOCTL_TEGRA_GET_SYNCPT_BASE DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GET_SYNCPT_BASE, struct drm_tegra_get_syncpt_base)
+#define DRM_IOCTL_TEGRA_GEM_SET_TILING DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_SET_TILING, struct drm_tegra_gem_set_tiling)
+#define DRM_IOCTL_TEGRA_GEM_GET_TILING DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_GET_TILING, struct drm_tegra_gem_get_tiling)
+#define DRM_IOCTL_TEGRA_GEM_SET_FLAGS DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_SET_FLAGS, struct drm_tegra_gem_set_flags)
+#define DRM_IOCTL_TEGRA_GEM_GET_FLAGS DRM_IOWR(DRM_COMMAND_BASE + DRM_TEGRA_GEM_GET_FLAGS, struct drm_tegra_gem_get_flags)
+
+/* New Tegra DRM UAPI */
+
+/*
+ * Reported by the driver in the `capabilities` field.
+ *
+ * DRM_TEGRA_CHANNEL_CAP_CACHE_COHERENT: If set, the engine is cache coherent
+ * with regard to the system memory.
+ */
+#define DRM_TEGRA_CHANNEL_CAP_CACHE_COHERENT (1 << 0)
+
+struct drm_tegra_channel_open {
+ /**
+ * @host1x_class: [in]
+ *
+ * Host1x class of the engine that will be programmed using this
+ * channel.
+ */
+ __u32 host1x_class;
+
+ /**
+ * @flags: [in]
+ *
+ * Flags.
+ */
+ __u32 flags;
+
+ /**
+ * @context: [out]
+ *
+ * Opaque identifier corresponding to the opened channel.
+ */
+ __u32 context;
+
+ /**
+ * @version: [out]
+ *
+ * Version of the engine hardware. This can be used by userspace
+ * to determine how the engine needs to be programmed.
+ */
+ __u32 version;
+
+ /**
+ * @capabilities: [out]
+ *
+ * Flags describing the hardware capabilities.
+ */
+ __u32 capabilities;
+ __u32 padding;
+};
+
+struct drm_tegra_channel_close {
+ /**
+ * @context: [in]
+ *
+ * Identifier of the channel to close.
+ */
+ __u32 context;
+ __u32 padding;
+};
+
+/*
+ * Mapping flags that can be used to influence how the mapping is created.
+ *
+ * DRM_TEGRA_CHANNEL_MAP_READ: create mapping that allows HW read access
+ * DRM_TEGRA_CHANNEL_MAP_WRITE: create mapping that allows HW write access
+ */
+#define DRM_TEGRA_CHANNEL_MAP_READ (1 << 0)
+#define DRM_TEGRA_CHANNEL_MAP_WRITE (1 << 1)
+#define DRM_TEGRA_CHANNEL_MAP_READ_WRITE (DRM_TEGRA_CHANNEL_MAP_READ | \
+ DRM_TEGRA_CHANNEL_MAP_WRITE)
+
+struct drm_tegra_channel_map {
+ /**
+ * @context: [in]
+ *
+ * Identifier of the channel to which make memory available for.
+ */
+ __u32 context;
+
+ /**
+ * @handle: [in]
+ *
+ * GEM handle of the memory to map.
+ */
+ __u32 handle;
+
+ /**
+ * @flags: [in]
+ *
+ * Flags.
+ */
+ __u32 flags;
+
+ /**
+ * @mapping: [out]
+ *
+ * Identifier corresponding to the mapping, to be used for
+ * relocations or unmapping later.
+ */
+ __u32 mapping;
+};
+
+struct drm_tegra_channel_unmap {
+ /**
+ * @context: [in]
+ *
+ * Channel identifier of the channel to unmap memory from.
+ */
+ __u32 context;
+
+ /**
+ * @mapping: [in]
+ *
+ * Mapping identifier of the memory mapping to unmap.
+ */
+ __u32 mapping;
+};
+
+/* Submission */
+
+/**
+ * Specify that bit 39 of the patched-in address should be set to switch
+ * swizzling between Tegra and non-Tegra sector layout on systems that store
+ * surfaces in system memory in non-Tegra sector layout.
+ */
+#define DRM_TEGRA_SUBMIT_RELOC_SECTOR_LAYOUT (1 << 0)
+
+struct drm_tegra_submit_buf {
+ /**
+ * @mapping: [in]
+ *
+ * Identifier of the mapping to use in the submission.
+ */
+ __u32 mapping;
+
+ /**
+ * @flags: [in]
+ *
+ * Flags.
+ */
+ __u32 flags;
+
+ /**
+ * Information for relocation patching.
+ */
+ struct {
+ /**
+ * @target_offset: [in]
+ *
+ * Offset from the start of the mapping of the data whose
+ * address is to be patched into the gather.
+ */
+ __u64 target_offset;
+
+ /**
+ * @gather_offset_words: [in]
+ *
+ * Offset in words from the start of the gather data to
+ * where the address should be patched into.
+ */
+ __u32 gather_offset_words;
+
+ /**
+ * @shift: [in]
+ *
+ * Number of bits the address should be shifted right before
+ * patching in.
+ */
+ __u32 shift;
+ } reloc;
+};
+
+/**
+ * Execute `words` words of Host1x opcodes specified in the `gather_data_ptr`
+ * buffer. Each GATHER_UPTR command uses successive words from the buffer.
+ */
+#define DRM_TEGRA_SUBMIT_CMD_GATHER_UPTR 0
+/**
+ * Wait for a syncpoint to reach a value before continuing with further
+ * commands.
+ */
+#define DRM_TEGRA_SUBMIT_CMD_WAIT_SYNCPT 1
+/**
+ * Wait for a syncpoint to reach a value before continuing with further
+ * commands. The threshold is calculated relative to the start of the job.
+ */
+#define DRM_TEGRA_SUBMIT_CMD_WAIT_SYNCPT_RELATIVE 2
+
+struct drm_tegra_submit_cmd_gather_uptr {
+ __u32 words;
+ __u32 reserved[3];
+};
+
+struct drm_tegra_submit_cmd_wait_syncpt {
+ __u32 id;
+ __u32 value;
+ __u32 reserved[2];
+};
+
+struct drm_tegra_submit_cmd {
+ /**
+ * @type: [in]
+ *
+ * Command type to execute. One of the DRM_TEGRA_SUBMIT_CMD*
+ * defines.
+ */
+ __u32 type;
+
+ /**
+ * @flags: [in]
+ *
+ * Flags.
+ */
+ __u32 flags;
+
+ union {
+ struct drm_tegra_submit_cmd_gather_uptr gather_uptr;
+ struct drm_tegra_submit_cmd_wait_syncpt wait_syncpt;
+ __u32 reserved[4];
+ };
+};
+
+struct drm_tegra_submit_syncpt {
+ /**
+ * @id: [in]
+ *
+ * ID of the syncpoint that the job will increment.
+ */
+ __u32 id;
+
+ /**
+ * @flags: [in]
+ *
+ * Flags.
+ */
+ __u32 flags;
+
+ /**
+ * @increments: [in]
+ *
+ * Number of times the job will increment this syncpoint.
+ */
+ __u32 increments;
+
+ /**
+ * @value: [out]
+ *
+ * Value the syncpoint will have once the job has completed all
+ * its specified syncpoint increments.
+ *
+ * Note that the kernel may increment the syncpoint before or after
+ * the job. These increments are not reflected in this field.
+ *
+ * If the job hangs or times out, not all of the increments may
+ * get executed.
+ */
+ __u32 value;
+};
+
+struct drm_tegra_channel_submit {
+ /**
+ * @context: [in]
+ *
+ * Identifier of the channel to submit this job to.
+ */
+ __u32 context;
+
+ /**
+ * @num_bufs: [in]
+ *
+ * Number of elements in the `bufs_ptr` array.
+ */
+ __u32 num_bufs;
+
+ /**
+ * @num_cmds: [in]
+ *
+ * Number of elements in the `cmds_ptr` array.
+ */
+ __u32 num_cmds;
+
+ /**
+ * @gather_data_words: [in]
+ *
+ * Number of 32-bit words in the `gather_data_ptr` array.
+ */
+ __u32 gather_data_words;
+
+ /**
+ * @bufs_ptr: [in]
+ *
+ * Pointer to an array of drm_tegra_submit_buf structures.
+ */
+ __u64 bufs_ptr;
+
+ /**
+ * @cmds_ptr: [in]
+ *
+ * Pointer to an array of drm_tegra_submit_cmd structures.
+ */
+ __u64 cmds_ptr;
+
+ /**
+ * @gather_data_ptr: [in]
+ *
+ * Pointer to an array of Host1x opcodes to be used by GATHER_UPTR
+ * commands.
+ */
+ __u64 gather_data_ptr;
+
+ /**
+ * @syncobj_in: [in]
+ *
+ * Handle for DRM syncobj that will be waited before submission.
+ * Ignored if zero.
+ */
+ __u32 syncobj_in;
+
+ /**
+ * @syncobj_out: [in]
+ *
+ * Handle for DRM syncobj that will have its fence replaced with
+ * the job's completion fence. Ignored if zero.
+ */
+ __u32 syncobj_out;
+
+ /**
+ * @syncpt_incr: [in,out]
+ *
+ * Information about the syncpoint the job will increment.
+ */
+ struct drm_tegra_submit_syncpt syncpt;
+};
+
+struct drm_tegra_syncpoint_allocate {
+ /**
+ * @id: [out]
+ *
+ * ID of allocated syncpoint.
+ */
+ __u32 id;
+ __u32 padding;
+};
+
+struct drm_tegra_syncpoint_free {
+ /**
+ * @id: [in]
+ *
+ * ID of syncpoint to free.
+ */
+ __u32 id;
+ __u32 padding;
+};
+
+struct drm_tegra_syncpoint_wait {
+ /**
+ * @timeout: [in]
+ *
+ * Absolute timestamp at which the wait will time out.
+ */
+ __s64 timeout_ns;
+
+ /**
+ * @id: [in]
+ *
+ * ID of syncpoint to wait on.
+ */
+ __u32 id;
+
+ /**
+ * @threshold: [in]
+ *
+ * Threshold to wait for.
+ */
+ __u32 threshold;
+
+ /**
+ * @value: [out]
+ *
+ * Value of the syncpoint upon wait completion.
+ */
+ __u32 value;
+
+ __u32 padding;
+};
+
+#define DRM_IOCTL_TEGRA_CHANNEL_OPEN DRM_IOWR(DRM_COMMAND_BASE + 0x10, struct drm_tegra_channel_open)
+#define DRM_IOCTL_TEGRA_CHANNEL_CLOSE DRM_IOWR(DRM_COMMAND_BASE + 0x11, struct drm_tegra_channel_close)
+#define DRM_IOCTL_TEGRA_CHANNEL_MAP DRM_IOWR(DRM_COMMAND_BASE + 0x12, struct drm_tegra_channel_map)
+#define DRM_IOCTL_TEGRA_CHANNEL_UNMAP DRM_IOWR(DRM_COMMAND_BASE + 0x13, struct drm_tegra_channel_unmap)
+#define DRM_IOCTL_TEGRA_CHANNEL_SUBMIT DRM_IOWR(DRM_COMMAND_BASE + 0x14, struct drm_tegra_channel_submit)
+
+#define DRM_IOCTL_TEGRA_SYNCPOINT_ALLOCATE DRM_IOWR(DRM_COMMAND_BASE + 0x20, struct drm_tegra_syncpoint_allocate)
+#define DRM_IOCTL_TEGRA_SYNCPOINT_FREE DRM_IOWR(DRM_COMMAND_BASE + 0x21, struct drm_tegra_syncpoint_free)
+#define DRM_IOCTL_TEGRA_SYNCPOINT_WAIT DRM_IOWR(DRM_COMMAND_BASE + 0x22, struct drm_tegra_syncpoint_wait)
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif