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>
181 lines
2.6 KiB
ArmAsm
181 lines
2.6 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* atomic64_t for 586+
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*
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* Copyright © 2010 Luca Barbieri
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*/
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#include <linux/linkage.h>
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#include <asm/alternative.h>
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.macro read64 reg
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movl %ebx, %eax
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movl %ecx, %edx
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/* we need LOCK_PREFIX since otherwise cmpxchg8b always does the write */
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LOCK_PREFIX
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cmpxchg8b (\reg)
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.endm
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SYM_FUNC_START(atomic64_read_cx8)
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read64 %ecx
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RET
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SYM_FUNC_END(atomic64_read_cx8)
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SYM_FUNC_START(atomic64_set_cx8)
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1:
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/* we don't need LOCK_PREFIX since aligned 64-bit writes
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* are atomic on 586 and newer */
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cmpxchg8b (%esi)
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jne 1b
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RET
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SYM_FUNC_END(atomic64_set_cx8)
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SYM_FUNC_START(atomic64_xchg_cx8)
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1:
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LOCK_PREFIX
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cmpxchg8b (%esi)
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jne 1b
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RET
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SYM_FUNC_END(atomic64_xchg_cx8)
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.macro addsub_return func ins insc
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SYM_FUNC_START(atomic64_\func\()_return_cx8)
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pushl %ebp
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pushl %ebx
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pushl %esi
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pushl %edi
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movl %eax, %esi
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movl %edx, %edi
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movl %ecx, %ebp
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read64 %ecx
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1:
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movl %eax, %ebx
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movl %edx, %ecx
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\ins\()l %esi, %ebx
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\insc\()l %edi, %ecx
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LOCK_PREFIX
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cmpxchg8b (%ebp)
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jne 1b
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10:
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movl %ebx, %eax
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movl %ecx, %edx
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popl %edi
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popl %esi
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popl %ebx
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popl %ebp
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RET
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SYM_FUNC_END(atomic64_\func\()_return_cx8)
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.endm
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addsub_return add add adc
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addsub_return sub sub sbb
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.macro incdec_return func ins insc
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SYM_FUNC_START(atomic64_\func\()_return_cx8)
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pushl %ebx
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read64 %esi
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1:
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movl %eax, %ebx
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movl %edx, %ecx
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\ins\()l $1, %ebx
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\insc\()l $0, %ecx
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LOCK_PREFIX
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cmpxchg8b (%esi)
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jne 1b
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10:
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movl %ebx, %eax
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movl %ecx, %edx
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popl %ebx
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RET
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SYM_FUNC_END(atomic64_\func\()_return_cx8)
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.endm
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incdec_return inc add adc
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incdec_return dec sub sbb
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SYM_FUNC_START(atomic64_dec_if_positive_cx8)
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pushl %ebx
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read64 %esi
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1:
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movl %eax, %ebx
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movl %edx, %ecx
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subl $1, %ebx
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sbb $0, %ecx
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js 2f
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LOCK_PREFIX
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cmpxchg8b (%esi)
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jne 1b
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2:
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movl %ebx, %eax
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movl %ecx, %edx
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popl %ebx
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RET
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SYM_FUNC_END(atomic64_dec_if_positive_cx8)
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SYM_FUNC_START(atomic64_add_unless_cx8)
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pushl %ebp
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pushl %ebx
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/* these just push these two parameters on the stack */
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pushl %edi
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pushl %ecx
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movl %eax, %ebp
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movl %edx, %edi
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read64 %esi
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1:
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cmpl %eax, 0(%esp)
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je 4f
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2:
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movl %eax, %ebx
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movl %edx, %ecx
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addl %ebp, %ebx
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adcl %edi, %ecx
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LOCK_PREFIX
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cmpxchg8b (%esi)
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jne 1b
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movl $1, %eax
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3:
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addl $8, %esp
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popl %ebx
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popl %ebp
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RET
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4:
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cmpl %edx, 4(%esp)
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jne 2b
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xorl %eax, %eax
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jmp 3b
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SYM_FUNC_END(atomic64_add_unless_cx8)
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SYM_FUNC_START(atomic64_inc_not_zero_cx8)
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pushl %ebx
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read64 %esi
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1:
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movl %eax, %ecx
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orl %edx, %ecx
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jz 3f
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movl %eax, %ebx
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xorl %ecx, %ecx
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addl $1, %ebx
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adcl %edx, %ecx
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LOCK_PREFIX
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cmpxchg8b (%esi)
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jne 1b
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movl $1, %eax
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3:
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popl %ebx
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RET
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SYM_FUNC_END(atomic64_inc_not_zero_cx8)
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