linux-kernel - arch/xtensa/boot/boot-elf/bootstrap.S:58: Error: invalid register 'atomctl' for 'wsr' instruction

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Date:   Wed, 12 Oct 2022 00:54:07 +0800
From:   kernel test robot <lkp@...el.com>
To:     Max Filippov <jcmvbkbc@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: arch/xtensa/boot/boot-elf/bootstrap.S:58: Error: invalid register
 'atomctl' for 'wsr' instruction

Hi Max,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   60bb8154d1d77042a5d43d335a68fdb202302cbe
commit: da0a4e5c8fbcce3d1afebf9f2a967083bb19634d xtensa: only build windowed register support code when needed
date:   12 months ago
config: xtensa-randconfig-r022-20221010
compiler: xtensa-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=da0a4e5c8fbcce3d1afebf9f2a967083bb19634d
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout da0a4e5c8fbcce3d1afebf9f2a967083bb19634d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=xtensa SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   arch/xtensa/boot/boot-elf/bootstrap.S: Assembler messages:
>> arch/xtensa/boot/boot-elf/bootstrap.S:58: Error: invalid register 'atomctl' for 'wsr' instruction
   arch/xtensa/boot/boot-elf/bootstrap.S:68: Warning: value 0x00000001a0003000 truncated to 0x00000000a0003000


vim +58 arch/xtensa/boot/boot-elf/bootstrap.S

e85e335f8ff615 Max Filippov 2012-12-03  42  
e85e335f8ff615 Max Filippov 2012-12-03  43  	.align  4
e85e335f8ff615 Max Filippov 2012-12-03  44  _SetupMMU:
09af39f649dac6 Max Filippov 2021-07-26  45  #if XCHAL_HAVE_WINDOWED
e85e335f8ff615 Max Filippov 2012-12-03  46  	movi	a0, 0
e85e335f8ff615 Max Filippov 2012-12-03  47  	wsr	a0, windowbase
e85e335f8ff615 Max Filippov 2012-12-03  48  	rsync
e85e335f8ff615 Max Filippov 2012-12-03  49  	movi	a0, 1
e85e335f8ff615 Max Filippov 2012-12-03  50  	wsr	a0, windowstart
e85e335f8ff615 Max Filippov 2012-12-03  51  	rsync
09af39f649dac6 Max Filippov 2021-07-26  52  #endif
e85e335f8ff615 Max Filippov 2012-12-03  53  	movi	a0, 0x1F
e85e335f8ff615 Max Filippov 2012-12-03  54  	wsr	a0, ps
e85e335f8ff615 Max Filippov 2012-12-03  55  	rsync
e85e335f8ff615 Max Filippov 2012-12-03  56  
e85e335f8ff615 Max Filippov 2012-12-03  57  #ifndef CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX
e85e335f8ff615 Max Filippov 2012-12-03 @58  	initialize_mmu

:::::: The code at line 58 was first introduced by commit
:::::: e85e335f8ff615f74e29e09cc2599f095600114b xtensa: add MMU v3 support

:::::: TO: Max Filippov <jcmvbkbc@...il.com>
:::::: CC: Chris Zankel <chris@...kel.net>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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