8f34c2760d
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp: Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem. sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately. sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades. sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for fastboot. Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
43 lines
1.6 KiB
Plaintext
43 lines
1.6 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
|
|
#
|
|
# (C) COPYRIGHT 2012-2013, 2020-2022 ARM Limited. All rights reserved.
|
|
#
|
|
# This program is free software and is provided to you under the terms of the
|
|
# GNU General Public License version 2 as published by the Free Software
|
|
# Foundation, and any use by you of this program is subject to the terms
|
|
# of such GNU license.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, you can access it online at
|
|
# http://www.gnu.org/licenses/gpl-2.0.html.
|
|
#
|
|
#
|
|
|
|
=====================
|
|
dma-buf-test-exporter
|
|
=====================
|
|
|
|
Overview
|
|
--------
|
|
|
|
The dma-buf-test-exporter is a simple exporter of dma_buf objects.
|
|
It has a private API to allocate and manipulate the buffers which are represented as dma_buf fds.
|
|
The private API allows:
|
|
* simple allocation of physically non-contiguous buffers
|
|
* simple allocation of physically contiguous buffers
|
|
* query kernel side API usage stats (number of attachments, number of mappings, mmaps)
|
|
* failure mode configuration (fail attach, mapping, mmap)
|
|
* kernel side memset of buffers
|
|
|
|
The buffers support all of the dma_buf API, including mmap.
|
|
|
|
It supports being compiled as a module both in-tree and out-of-tree.
|
|
|
|
See include/uapi/base/arm/dma_buf_test_exporter/dma-buf-test-exporter.h for the ioctl interface.
|
|
See Documentation/dma-buf-sharing.txt for details on dma_buf.
|