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Date: Mon, 17 Apr 2023 07:57:04 +0800
From: kernel test robot <lkp@...el.com>
To: "Borislav Petkov (AMD)" <bp@...en8.de>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org
Subject: arch/mips/include/asm/timex.h:75:10: error: instruction requires a
CPU feature not currently enabled
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 6a8f57ae2eb07ab39a6f0ccad60c760743051026
commit: aba5b397cad7d398b385aaf5029f99f41b690466 hamradio: baycom_epp: Do not use x86-specific rdtsc()
date: 4 months ago
config: mips-buildonly-randconfig-r001-20230417 (https://download.01.org/0day-ci/archive/20230417/202304170748.Fg9VIgGd-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 9638da200e00bd069e6dd63604e14cbafede9324)
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
# install mips cross compiling tool for clang build
# apt-get install binutils-mipsel-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=aba5b397cad7d398b385aaf5029f99f41b690466
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout aba5b397cad7d398b385aaf5029f99f41b690466
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/net/hamradio/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304170748.Fg9VIgGd-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/net/hamradio/baycom_epp.c:29:
In file included from include/linux/module.h:13:
In file included from include/linux/stat.h:19:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
>> arch/mips/include/asm/timex.h:75:10: error: instruction requires a CPU feature not currently enabled
return read_c0_count();
^
arch/mips/include/asm/mipsregs.h:1712:26: note: expanded from macro 'read_c0_count'
#define read_c0_count() __read_32bit_c0_register($9, 0)
^
arch/mips/include/asm/mipsregs.h:1453:2: note: expanded from macro '__read_32bit_c0_register'
___read_32bit_c0_register(source, sel, __volatile__)
^
arch/mips/include/asm/mipsregs.h:1419:4: note: expanded from macro '___read_32bit_c0_register'
"mfc0\t%0, " #source "\n\t" \
^
<inline asm>:1:2: note: instantiated into assembly here
mfc0 $4, $9
^
In file included from drivers/net/hamradio/baycom_epp.c:29:
In file included from include/linux/module.h:13:
In file included from include/linux/stat.h:19:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
>> arch/mips/include/asm/timex.h:75:10: error: instruction requires a CPU feature not currently enabled
return read_c0_count();
^
arch/mips/include/asm/mipsregs.h:1712:26: note: expanded from macro 'read_c0_count'
#define read_c0_count() __read_32bit_c0_register($9, 0)
^
arch/mips/include/asm/mipsregs.h:1453:2: note: expanded from macro '__read_32bit_c0_register'
___read_32bit_c0_register(source, sel, __volatile__)
^
arch/mips/include/asm/mipsregs.h:1419:4: note: expanded from macro '___read_32bit_c0_register'
"mfc0\t%0, " #source "\n\t" \
^
<inline asm>:1:2: note: instantiated into assembly here
mfc0 $2, $9
^
In file included from drivers/net/hamradio/baycom_epp.c:29:
In file included from include/linux/module.h:13:
In file included from include/linux/stat.h:19:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
>> arch/mips/include/asm/timex.h:75:10: error: instruction requires a CPU feature not currently enabled
return read_c0_count();
^
arch/mips/include/asm/mipsregs.h:1712:26: note: expanded from macro 'read_c0_count'
#define read_c0_count() __read_32bit_c0_register($9, 0)
^
arch/mips/include/asm/mipsregs.h:1453:2: note: expanded from macro '__read_32bit_c0_register'
___read_32bit_c0_register(source, sel, __volatile__)
^
arch/mips/include/asm/mipsregs.h:1419:4: note: expanded from macro '___read_32bit_c0_register'
"mfc0\t%0, " #source "\n\t" \
^
<inline asm>:1:2: note: instantiated into assembly here
mfc0 $2, $9
^
In file included from drivers/net/hamradio/baycom_epp.c:29:
In file included from include/linux/module.h:13:
In file included from include/linux/stat.h:19:
In file included from include/linux/time.h:60:
In file included from include/linux/time32.h:13:
In file included from include/linux/timex.h:67:
>> arch/mips/include/asm/timex.h:75:10: error: instruction requires a CPU feature not currently enabled
return read_c0_count();
^
arch/mips/include/asm/mipsregs.h:1712:26: note: expanded from macro 'read_c0_count'
#define read_c0_count() __read_32bit_c0_register($9, 0)
^
arch/mips/include/asm/mipsregs.h:1453:2: note: expanded from macro '__read_32bit_c0_register'
___read_32bit_c0_register(source, sel, __volatile__)
^
arch/mips/include/asm/mipsregs.h:1419:4: note: expanded from macro '___read_32bit_c0_register'
"mfc0\t%0, " #source "\n\t" \
^
<inline asm>:1:2: note: instantiated into assembly here
mfc0 $2, $9
^
4 errors generated.
vim +75 arch/mips/include/asm/timex.h
9c9b415c50bc29 Ralf Baechle 2013-09-12 71
06947aaaf9bf7d Maciej W. Rozycki 2014-04-06 72 static inline cycles_t get_cycles(void)
06947aaaf9bf7d Maciej W. Rozycki 2014-04-06 73 {
06947aaaf9bf7d Maciej W. Rozycki 2014-04-06 74 if (can_use_mips_counter(read_c0_prid()))
9c9b415c50bc29 Ralf Baechle 2013-09-12 @75 return read_c0_count();
06947aaaf9bf7d Maciej W. Rozycki 2014-04-06 76 else
06947aaaf9bf7d Maciej W. Rozycki 2014-04-06 77 return 0; /* no usable counter */
9c9b415c50bc29 Ralf Baechle 2013-09-12 78 }
1c99c6a7c3c599 Jason A. Donenfeld 2022-04-08 79 #define get_cycles get_cycles
9c9b415c50bc29 Ralf Baechle 2013-09-12 80
:::::: The code at line 75 was first introduced by commit
:::::: 9c9b415c50bc298ac61412dff856eae2f54889ee MIPS: Reimplement get_cycles().
:::::: TO: Ralf Baechle <ralf@...ux-mips.org>
:::::: CC: Ralf Baechle <ralf@...ux-mips.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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