mirror of
git://nv-tegra.nvidia.com/linux-nv-oot.git
synced 2025-12-24 02:01:36 +03:00
54584c92ca
Trivial clean-up for building Host1x by ... 1. Removing the Kconfig file because this is not needed for building as an external module and we only plan to build this as an external module. 2. Moving both 'host1x-next.h' header files under the Host1x source directory so that we don't need to pass the path for finding the header when building Host1x as an external module. 3. Remove the 'CONFIG_TEGRA_HOST1X_NEXT' variable because we always build Host1x as a module. Bug 200687525 Change-Id: Ica5534f92a3a2ee6f6500ec419fa05f03993b90b Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2485760 Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit
135 lines
2.5 KiB
C
135 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/* Copyright (c) 2020 NVIDIA Corporation */
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#ifndef _UAPI__LINUX_HOST1X_H
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#define _UAPI__LINUX_HOST1X_H
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#include <linux/ioctl.h>
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#include <linux/types.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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struct host1x_allocate_syncpoint {
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/**
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* @fd: [out]
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*
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* New file descriptor representing the allocated syncpoint.
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*/
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__s32 fd;
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__u32 reserved[3];
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};
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struct host1x_syncpoint_info {
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/**
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* @id: [out]
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*
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* System-global ID of the syncpoint.
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*/
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__u32 id;
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__u32 reserved[3];
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};
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struct host1x_syncpoint_increment {
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/**
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* @count: [in]
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*
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* Number of times to increment the syncpoint. The syncpoint can
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* be observed at in-between values, but each increment is atomic.
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*/
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__u32 count;
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};
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struct host1x_read_syncpoint {
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/**
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* @id: [in]
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*
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* ID of the syncpoint to read.
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*/
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__u32 id;
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/**
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* @value: [out]
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*
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* Current value of the syncpoint.
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*/
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__u32 value;
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};
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struct host1x_create_fence {
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/**
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* @id: [in]
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*
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* ID of the syncpoint to create a fence for.
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*/
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__u32 id;
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/**
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* @threshold: [in]
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*
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* When the syncpoint reaches this value, the fence will be signaled.
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* The syncpoint is considered to have reached the threshold when the
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* following condition is true:
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*
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* ((value - threshold) & 0x80000000U) == 0U
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*
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*/
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__u32 threshold;
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/**
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* @fence_fd: [out]
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*
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* New sync_file file descriptor containing the created fence.
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*/
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__s32 fence_fd;
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__u32 reserved[1];
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};
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struct host1x_fence_extract_fence {
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__u32 id;
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__u32 threshold;
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};
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struct host1x_fence_extract {
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/**
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* @fence_fd: [in]
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*
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* sync_file file descriptor
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*/
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__s32 fence_fd;
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/**
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* @num_fences: [in,out]
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*
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* In: size of the `fences_ptr` array counted in elements.
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* Out: required size of the `fences_ptr` array counted in elements.
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*/
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__u32 num_fences;
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/**
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* @fences_ptr: [in]
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*
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* Pointer to array of `struct host1x_fence_extract_fence`.
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*/
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__u64 fences_ptr;
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__u32 reserved[2];
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};
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#define HOST1X_IOCTL_ALLOCATE_SYNCPOINT _IOWR('X', 0x00, struct host1x_allocate_syncpoint)
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#define HOST1X_IOCTL_READ_SYNCPOINT _IOR ('X', 0x01, struct host1x_read_syncpoint)
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#define HOST1X_IOCTL_CREATE_FENCE _IOWR('X', 0x02, struct host1x_create_fence)
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#define HOST1X_IOCTL_SYNCPOINT_INFO _IOWR('X', 0x03, struct host1x_syncpoint_info)
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#define HOST1X_IOCTL_SYNCPOINT_INCREMENT _IOWR('X', 0x04, struct host1x_syncpoint_increment)
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#define HOST1X_IOCTL_FENCE_EXTRACT _IOWR('X', 0x05, struct host1x_fence_extract)
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#if defined(__cplusplus)
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}
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#endif
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#endif
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