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>
47 lines
751 B
ArmAsm
47 lines
751 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <linux/linkage.h>
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#include <asm/export.h>
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.text
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/*
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* Inputs:
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* %esi : memory location to compare
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* %eax : low 32 bits of old value
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* %edx : high 32 bits of old value
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* %ebx : low 32 bits of new value
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* %ecx : high 32 bits of new value
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*/
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SYM_FUNC_START(cmpxchg8b_emu)
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#
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# Emulate 'cmpxchg8b (%esi)' on UP except we don't
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# set the whole ZF thing (caller will just compare
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# eax:edx with the expected value)
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#
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pushfl
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cli
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cmpl (%esi), %eax
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jne .Lnot_same
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cmpl 4(%esi), %edx
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jne .Lhalf_same
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movl %ebx, (%esi)
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movl %ecx, 4(%esi)
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popfl
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RET
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.Lnot_same:
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movl (%esi), %eax
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.Lhalf_same:
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movl 4(%esi), %edx
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popfl
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RET
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SYM_FUNC_END(cmpxchg8b_emu)
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EXPORT_SYMBOL(cmpxchg8b_emu)
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